diff options
Diffstat (limited to 'sound/firewire')
28 files changed, 2835 insertions, 2382 deletions
diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig index 46dff64..2a5b9a6 100644 --- a/sound/firewire/Kconfig +++ b/sound/firewire/Kconfig @@ -13,12 +13,12 @@ config SND_FIREWIRE_LIB select SND_RAWMIDI config SND_DICE - tristate "DICE-based DACs (EXPERIMENTAL)" + tristate "DICE-based DACs support" select SND_HWDEP select SND_FIREWIRE_LIB help Say Y here to include support for many DACs based on the DICE - chip family (DICE-II/Jr/Mini) from TC Applied Technologies. + chip family (DICE-II/Jr/Mini) which TC Applied Technologies produces. At the moment, this driver supports playback only. If you want to use devices that support capturing, use FFADO instead. @@ -26,15 +26,17 @@ config SND_DICE To compile this driver as a module, choose M here: the module will be called snd-dice. -config SND_FIREWIRE_SPEAKERS - tristate "FireWire speakers" +config SND_OXFW + tristate "Oxford Semiconductor FW970/971 chipset support" select SND_FIREWIRE_LIB help - Say Y here to include support for the Griffin FireWave Surround - and the LaCie FireWire Speakers. + Say Y here to include support for FireWire devices based on + Oxford Semiconductor FW970/971 chipset. + * Griffin Firewave + * LaCie Firewire Speakers To compile this driver as a module, choose M here: the module - will be called snd-firewire-speakers. + will be called snd-oxfw. config SND_ISIGHT tristate "Apple iSight microphone" diff --git a/sound/firewire/Makefile b/sound/firewire/Makefile index fad8d49..8b37f08 100644 --- a/sound/firewire/Makefile +++ b/sound/firewire/Makefile @@ -1,13 +1,12 @@ snd-firewire-lib-objs := lib.o iso-resources.o packets-buffer.o \ fcp.o cmp.o amdtp.o -snd-dice-objs := dice.o -snd-firewire-speakers-objs := speakers.o +snd-oxfw-objs := oxfw.o snd-isight-objs := isight.o snd-scs1x-objs := scs1x.o obj-$(CONFIG_SND_FIREWIRE_LIB) += snd-firewire-lib.o -obj-$(CONFIG_SND_DICE) += snd-dice.o -obj-$(CONFIG_SND_FIREWIRE_SPEAKERS) += snd-firewire-speakers.o +obj-$(CONFIG_SND_DICE) += dice/ +obj-$(CONFIG_SND_OXFW) += oxfw/ obj-$(CONFIG_SND_ISIGHT) += snd-isight.o obj-$(CONFIG_SND_SCS1X) += snd-scs1x.o obj-$(CONFIG_SND_FIREWORKS) += fireworks/ diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c index 95fc2eaf..3badc70 100644 --- a/sound/firewire/amdtp.c +++ b/sound/firewire/amdtp.c @@ -1006,11 +1006,7 @@ void amdtp_stream_pcm_abort(struct amdtp_stream *s) struct snd_pcm_substream *pcm; pcm = ACCESS_ONCE(s->pcm); - if (pcm) { - snd_pcm_stream_lock_irq(pcm); - if (snd_pcm_running(pcm)) - snd_pcm_stop(pcm, SNDRV_PCM_STATE_XRUN); - snd_pcm_stream_unlock_irq(pcm); - } + if (pcm) + snd_pcm_stop_xrun(pcm); } EXPORT_SYMBOL(amdtp_stream_pcm_abort); diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h index 4823c08..e6e8926 100644 --- a/sound/firewire/amdtp.h +++ b/sound/firewire/amdtp.h @@ -23,7 +23,7 @@ * corresponds to the end of event in the packet. Out of IEC 61883. * @CIP_WRONG_DBS: Only for in-stream. The value of dbs is wrong in in-packets. * The value of data_block_quadlets is used instead of reported value. - * @SKIP_DBC_ZERO_CHECK: Only for in-stream. Packets with zero in dbc is + * @CIP_SKIP_DBC_ZERO_CHECK: Only for in-stream. Packets with zero in dbc is * skipped for detecting discontinuity. * @CIP_SKIP_INIT_DBC_CHECK: Only for in-stream. The value of dbc in first * packet is not continuous from an initial value. @@ -43,7 +43,27 @@ enum cip_flags { }; /** - * enum cip_sfc - a stream's sample rate + * enum cip_sfc - supported Sampling Frequency Codes (SFCs) + * @CIP_SFC_32000: 32,000 data blocks + * @CIP_SFC_44100: 44,100 data blocks + * @CIP_SFC_48000: 48,000 data blocks + * @CIP_SFC_88200: 88,200 data blocks + * @CIP_SFC_96000: 96,000 data blocks + * @CIP_SFC_176400: 176,400 data blocks + * @CIP_SFC_192000: 192,000 data blocks + * @CIP_SFC_COUNT: the number of supported SFCs + * + * These values are used to show nominal Sampling Frequency Code in + * Format Dependent Field (FDF) of AMDTP packet header. In IEC 61883-6:2002, + * this code means the number of events per second. Actually the code + * represents the number of data blocks transferred per second in an AMDTP + * stream. + * + * In IEC 61883-6:2005, some extensions were added to support more types of + * data such as 'One Bit LInear Audio', therefore the meaning of SFC became + * different depending on the types. + * + * Currently our implementation is compatible with IEC 61883-6:2002. */ enum cip_sfc { CIP_SFC_32000 = 0, diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h index e13eef9..dfbcd23 100644 --- a/sound/firewire/bebob/bebob.h +++ b/sound/firewire/bebob/bebob.h @@ -52,7 +52,7 @@ extern const unsigned int snd_bebob_rate_table[SND_BEBOB_STRM_FMT_ENTRIES]; #define SND_BEBOB_CLOCK_INTERNAL "Internal" struct snd_bebob_clock_spec { unsigned int num; - char *const *labels; + const char *const *labels; int (*get)(struct snd_bebob *bebob, unsigned int *id); }; struct snd_bebob_rate_spec { @@ -61,7 +61,7 @@ struct snd_bebob_rate_spec { }; struct snd_bebob_meter_spec { unsigned int num; - char *const *labels; + const char *const *labels; int (*get)(struct snd_bebob *bebob, u32 *target, unsigned int size); }; struct snd_bebob_spec { diff --git a/sound/firewire/bebob/bebob_focusrite.c b/sound/firewire/bebob/bebob_focusrite.c index 3b052ed..fc67c1b 100644 --- a/sound/firewire/bebob/bebob_focusrite.c +++ b/sound/firewire/bebob/bebob_focusrite.c @@ -103,10 +103,10 @@ saffire_write_quad(struct snd_bebob *bebob, u64 offset, u32 value) &data, sizeof(__be32), 0); } -static char *const saffirepro_10_clk_src_labels[] = { +static const char *const saffirepro_10_clk_src_labels[] = { SND_BEBOB_CLOCK_INTERNAL, "S/PDIF", "Word Clock" }; -static char *const saffirepro_26_clk_src_labels[] = { +static const char *const saffirepro_26_clk_src_labels[] = { SND_BEBOB_CLOCK_INTERNAL, "S/PDIF", "ADAT1", "ADAT2", "Word Clock" }; /* Value maps between registers and labels for SaffirePro 10/26. */ @@ -195,7 +195,7 @@ end: } struct snd_bebob_spec saffire_le_spec; -static char *const saffire_both_clk_src_labels[] = { +static const char *const saffire_both_clk_src_labels[] = { SND_BEBOB_CLOCK_INTERNAL, "S/PDIF" }; static int @@ -210,12 +210,12 @@ saffire_both_clk_src_get(struct snd_bebob *bebob, unsigned int *id) return err; }; -static char *const saffire_le_meter_labels[] = { +static const char *const saffire_le_meter_labels[] = { ANA_IN, ANA_IN, DIG_IN, ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT, STM_IN, STM_IN }; -static char *const saffire_meter_labels[] = { +static const char *const saffire_meter_labels[] = { ANA_IN, ANA_IN, STM_IN, STM_IN, STM_IN, STM_IN, STM_IN, }; diff --git a/sound/firewire/bebob/bebob_maudio.c b/sound/firewire/bebob/bebob_maudio.c index 70faa3a..a422aaa 100644 --- a/sound/firewire/bebob/bebob_maudio.c +++ b/sound/firewire/bebob/bebob_maudio.c @@ -340,7 +340,7 @@ end: } /* Clock source control for special firmware */ -static char *const special_clk_labels[] = { +static const char *const special_clk_labels[] = { SND_BEBOB_CLOCK_INTERNAL " with Digital Mute", "Digital", "Word Clock", SND_BEBOB_CLOCK_INTERNAL}; static int special_clk_get(struct snd_bebob *bebob, unsigned int *id) @@ -352,17 +352,8 @@ static int special_clk_get(struct snd_bebob *bebob, unsigned int *id) static int special_clk_ctl_info(struct snd_kcontrol *kctl, struct snd_ctl_elem_info *einf) { - einf->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; - einf->count = 1; - einf->value.enumerated.items = ARRAY_SIZE(special_clk_labels); - - if (einf->value.enumerated.item >= einf->value.enumerated.items) - einf->value.enumerated.item = einf->value.enumerated.items - 1; - - strcpy(einf->value.enumerated.name, - special_clk_labels[einf->value.enumerated.item]); - - return 0; + return snd_ctl_enum_info(einf, 1, ARRAY_SIZE(special_clk_labels), + special_clk_labels); } static int special_clk_ctl_get(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uval) @@ -438,23 +429,15 @@ static struct snd_kcontrol_new special_sync_ctl = { }; /* Digital input interface control for special firmware */ -static char *const special_dig_in_iface_labels[] = { +static const char *const special_dig_in_iface_labels[] = { "S/PDIF Optical", "S/PDIF Coaxial", "ADAT Optical" }; static int special_dig_in_iface_ctl_info(struct snd_kcontrol *kctl, struct snd_ctl_elem_info *einf) { - einf->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; - einf->count = 1; - einf->value.enumerated.items = ARRAY_SIZE(special_dig_in_iface_labels); - - if (einf->value.enumerated.item >= einf->value.enumerated.items) - einf->value.enumerated.item = einf->value.enumerated.items - 1; - - strcpy(einf->value.enumerated.name, - special_dig_in_iface_labels[einf->value.enumerated.item]); - - return 0; + return snd_ctl_enum_info(einf, 1, + ARRAY_SIZE(special_dig_in_iface_labels), + special_dig_in_iface_labels); } static int special_dig_in_iface_ctl_get(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uval) @@ -539,23 +522,15 @@ static struct snd_kcontrol_new special_dig_in_iface_ctl = { }; /* Digital output interface control for special firmware */ -static char *const special_dig_out_iface_labels[] = { +static const char *const special_dig_out_iface_labels[] = { "S/PDIF Optical and Coaxial", "ADAT Optical" }; static int special_dig_out_iface_ctl_info(struct snd_kcontrol *kctl, struct snd_ctl_elem_info *einf) { - einf->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; - einf->count = 1; - einf->value.enumerated.items = ARRAY_SIZE(special_dig_out_iface_labels); - - if (einf->value.enumerated.item >= einf->value.enumerated.items) - einf->value.enumerated.item = einf->value.enumerated.items - 1; - - strcpy(einf->value.enumerated.name, - special_dig_out_iface_labels[einf->value.enumerated.item]); - - return 0; + return snd_ctl_enum_info(einf, 1, + ARRAY_SIZE(special_dig_out_iface_labels), + special_dig_out_iface_labels); } static int special_dig_out_iface_ctl_get(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uval) @@ -631,7 +606,7 @@ end: } /* Hardware metering for special firmware */ -static char *const special_meter_labels[] = { +static const char *const special_meter_labels[] = { ANA_IN, ANA_IN, ANA_IN, ANA_IN, SPDIF_IN, ADAT_IN, ADAT_IN, ADAT_IN, ADAT_IN, @@ -671,30 +646,30 @@ end: } /* last 4 bytes are omitted because it's clock info. */ -static char *const fw410_meter_labels[] = { +static const char *const fw410_meter_labels[] = { ANA_IN, DIG_IN, ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT, DIG_OUT, HP_OUT }; -static char *const audiophile_meter_labels[] = { +static const char *const audiophile_meter_labels[] = { ANA_IN, DIG_IN, ANA_OUT, ANA_OUT, DIG_OUT, HP_OUT, AUX_OUT, }; -static char *const solo_meter_labels[] = { +static const char *const solo_meter_labels[] = { ANA_IN, DIG_IN, STRM_IN, STRM_IN, ANA_OUT, DIG_OUT }; /* no clock info */ -static char *const ozonic_meter_labels[] = { +static const char *const ozonic_meter_labels[] = { ANA_IN, ANA_IN, STRM_IN, STRM_IN, ANA_OUT, ANA_OUT }; /* TODO: need testers. these positions are based on authour's assumption */ -static char *const nrv10_meter_labels[] = { +static const char *const nrv10_meter_labels[] = { ANA_IN, ANA_IN, ANA_IN, ANA_IN, DIG_IN, ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT, diff --git a/sound/firewire/bebob/bebob_terratec.c b/sound/firewire/bebob/bebob_terratec.c index 9940611..ad63500 100644 --- a/sound/firewire/bebob/bebob_terratec.c +++ b/sound/firewire/bebob/bebob_terratec.c @@ -8,7 +8,7 @@ #include "./bebob.h" -static char *const phase88_rack_clk_src_labels[] = { +static const char *const phase88_rack_clk_src_labels[] = { SND_BEBOB_CLOCK_INTERNAL, "Digital In", "Word Clock" }; static int @@ -34,7 +34,7 @@ end: return err; } -static char *const phase24_series_clk_src_labels[] = { +static const char *const phase24_series_clk_src_labels[] = { SND_BEBOB_CLOCK_INTERNAL, "Digital In" }; static int diff --git a/sound/firewire/bebob/bebob_yamaha.c b/sound/firewire/bebob/bebob_yamaha.c index 9b7e798..ef1fe38 100644 --- a/sound/firewire/bebob/bebob_yamaha.c +++ b/sound/firewire/bebob/bebob_yamaha.c @@ -28,7 +28,7 @@ * reccomend users to close ffado-mixer at 192.0kHz if mixer is needless. */ -static char *const clk_src_labels[] = {SND_BEBOB_CLOCK_INTERNAL, "SPDIF"}; +static const char *const clk_src_labels[] = {SND_BEBOB_CLOCK_INTERNAL, "SPDIF"}; static int clk_src_get(struct snd_bebob *bebob, unsigned int *id) { diff --git a/sound/firewire/cmp.c b/sound/firewire/cmp.c index ba8df5a..ae3bc19 100644 --- a/sound/firewire/cmp.c +++ b/sound/firewire/cmp.c @@ -114,6 +114,7 @@ static int pcr_modify(struct cmp_connection *c, * cmp_connection_init - initializes a connection manager * @c: the connection manager to initialize * @unit: a unit of the target device + * @direction: input or output * @pcr_index: the index of the iPCR/oPCR on the target device */ int cmp_connection_init(struct cmp_connection *c, @@ -154,6 +155,7 @@ EXPORT_SYMBOL(cmp_connection_init); /** * cmp_connection_check_used - check connection is already esablished or not * @c: the connection manager to be checked + * @used: the pointer to store the result of checking the connection */ int cmp_connection_check_used(struct cmp_connection *c, bool *used) { diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c deleted file mode 100644 index e3a04d6..0000000 --- a/sound/firewire/dice.c +++ /dev/null @@ -1,1511 +0,0 @@ -/* - * TC Applied Technologies Digital Interface Communications Engine driver - * - * Copyright (c) Clemens Ladisch <clemens@ladisch.de> - * Licensed under the terms of the GNU General Public License, version 2. - */ - -#include <linux/compat.h> -#include <linux/completion.h> -#include <linux/delay.h> -#include <linux/device.h> -#include <linux/firewire.h> -#include <linux/firewire-constants.h> -#include <linux/jiffies.h> -#include <linux/module.h> -#include <linux/mod_devicetable.h> -#include <linux/mutex.h> -#include <linux/slab.h> -#include <linux/spinlock.h> -#include <linux/wait.h> -#include <sound/control.h> -#include <sound/core.h> -#include <sound/firewire.h> -#include <sound/hwdep.h> -#include <sound/info.h> -#include <sound/initval.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include "amdtp.h" -#include "iso-resources.h" -#include "lib.h" -#include "dice-interface.h" - - -struct dice { - struct snd_card *card; - struct fw_unit *unit; - spinlock_t lock; - struct mutex mutex; - unsigned int global_offset; - unsigned int rx_offset; - unsigned int clock_caps; - unsigned int rx_channels[3]; - unsigned int rx_midi_ports[3]; - struct fw_address_handler notification_handler; - int owner_generation; - int dev_lock_count; /* > 0 driver, < 0 userspace */ - bool dev_lock_changed; - bool global_enabled; - struct completion clock_accepted; - wait_queue_head_t hwdep_wait; - u32 notification_bits; - struct fw_iso_resources resources; - struct amdtp_stream stream; -}; - -MODULE_DESCRIPTION("DICE driver"); -MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); -MODULE_LICENSE("GPL v2"); - -static const unsigned int dice_rates[] = { - /* mode 0 */ - [0] = 32000, - [1] = 44100, - [2] = 48000, - /* mode 1 */ - [3] = 88200, - [4] = 96000, - /* mode 2 */ - [5] = 176400, - [6] = 192000, -}; - -static unsigned int rate_to_index(unsigned int rate) -{ - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(dice_rates); ++i) - if (dice_rates[i] == rate) - return i; - - return 0; -} - -static unsigned int rate_index_to_mode(unsigned int rate_index) -{ - return ((int)rate_index - 1) / 2; -} - -static void dice_lock_changed(struct dice *dice) -{ - dice->dev_lock_changed = true; - wake_up(&dice->hwdep_wait); -} - -static int dice_try_lock(struct dice *dice) -{ - int err; - - spin_lock_irq(&dice->lock); - - if (dice->dev_lock_count < 0) { - err = -EBUSY; - goto out; - } - - if (dice->dev_lock_count++ == 0) - dice_lock_changed(dice); - err = 0; - -out: - spin_unlock_irq(&dice->lock); - - return err; -} - -static void dice_unlock(struct dice *dice) -{ - spin_lock_irq(&dice->lock); - - if (WARN_ON(dice->dev_lock_count <= 0)) - goto out; - - if (--dice->dev_lock_count == 0) - dice_lock_changed(dice); - -out: - spin_unlock_irq(&dice->lock); -} - -static inline u64 global_address(struct dice *dice, unsigned int offset) -{ - return DICE_PRIVATE_SPACE + dice->global_offset + offset; -} - -// TODO: rx index -static inline u64 rx_address(struct dice *dice, unsigned int offset) -{ - return DICE_PRIVATE_SPACE + dice->rx_offset + offset; -} - -static int dice_owner_set(struct dice *dice) -{ - struct fw_device *device = fw_parent_device(dice->unit); - __be64 *buffer; - int err, errors = 0; - - buffer = kmalloc(2 * 8, GFP_KERNEL); - if (!buffer) - return -ENOMEM; - - for (;;) { - buffer[0] = cpu_to_be64(OWNER_NO_OWNER); - buffer[1] = cpu_to_be64( - ((u64)device->card->node_id << OWNER_NODE_SHIFT) | - dice->notification_handler.offset); - - dice->owner_generation = device->generation; - smp_rmb(); /* node_id vs. generation */ - err = snd_fw_transaction(dice->unit, - TCODE_LOCK_COMPARE_SWAP, - global_address(dice, GLOBAL_OWNER), - buffer, 2 * 8, - FW_FIXED_GENERATION | - dice->owner_generation); - - if (err == 0) { - if (buffer[0] != cpu_to_be64(OWNER_NO_OWNER)) { - dev_err(&dice->unit->device, - "device is already in use\n"); - err = -EBUSY; - } - break; - } - if (err != -EAGAIN || ++errors >= 3) - break; - - msleep(20); - } - - kfree(buffer); - - return err; -} - -static int dice_owner_update(struct dice *dice) -{ - struct fw_device *device = fw_parent_device(dice->unit); - __be64 *buffer; - int err; - - if (dice->owner_generation == -1) - return 0; - - buffer = kmalloc(2 * 8, GFP_KERNEL); - if (!buffer) - return -ENOMEM; - - buffer[0] = cpu_to_be64(OWNER_NO_OWNER); - buffer[1] = cpu_to_be64( - ((u64)device->card->node_id << OWNER_NODE_SHIFT) | - dice->notification_handler.offset); - - dice->owner_generation = device->generation; - smp_rmb(); /* node_id vs. generation */ - err = snd_fw_transaction(dice->unit, TCODE_LOCK_COMPARE_SWAP, - global_address(dice, GLOBAL_OWNER), - buffer, 2 * 8, - FW_FIXED_GENERATION | dice->owner_generation); - - if (err == 0) { - if (buffer[0] != cpu_to_be64(OWNER_NO_OWNER)) { - dev_err(&dice->unit->device, - "device is already in use\n"); - err = -EBUSY; - } - } else if (err == -EAGAIN) { - err = 0; /* try again later */ - } - - kfree(buffer); - - if (err < 0) - dice->owner_generation = -1; - - return err; -} - -static void dice_owner_clear(struct dice *dice) -{ - struct fw_device *device = fw_parent_device(dice->unit); - __be64 *buffer; - - buffer = kmalloc(2 * 8, GFP_KERNEL); - if (!buffer) - return; - - buffer[0] = cpu_to_be64( - ((u64)device->card->node_id << OWNER_NODE_SHIFT) | - dice->notification_handler.offset); - buffer[1] = cpu_to_be64(OWNER_NO_OWNER); - snd_fw_transaction(dice->unit, TCODE_LOCK_COMPARE_SWAP, - global_address(dice, GLOBAL_OWNER), - buffer, 2 * 8, FW_QUIET | - FW_FIXED_GENERATION | dice->owner_generation); - - kfree(buffer); - - dice->owner_generation = -1; -} - -static int dice_enable_set(struct dice *dice) -{ - __be32 value; - int err; - - value = cpu_to_be32(1); - err = snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST, - global_address(dice, GLOBAL_ENABLE), - &value, 4, - FW_FIXED_GENERATION | dice->owner_generation); - if (err < 0) - return err; - - dice->global_enabled = true; - - return 0; -} - -static void dice_enable_clear(struct dice *dice) -{ - __be32 value; - - if (!dice->global_enabled) - return; - - value = 0; - snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST, - global_address(dice, GLOBAL_ENABLE), - &value, 4, FW_QUIET | - FW_FIXED_GENERATION | dice->owner_generation); - - dice->global_enabled = false; -} - -static void dice_notification(struct fw_card *card, struct fw_request *request, - int tcode, int destination, int source, - int generation, unsigned long long offset, - void *data, size_t length, void *callback_data) -{ - struct dice *dice = callback_data; - u32 bits; - unsigned long flags; - - if (tcode != TCODE_WRITE_QUADLET_REQUEST) { - fw_send_response(card, request, RCODE_TYPE_ERROR); - return; - } - if ((offset & 3) != 0) { - fw_send_response(card, request, RCODE_ADDRESS_ERROR); - return; - } - - bits = be32_to_cpup(data); - - spin_lock_irqsave(&dice->lock, flags); - dice->notification_bits |= bits; - spin_unlock_irqrestore(&dice->lock, flags); - - fw_send_response(card, request, RCODE_COMPLETE); - - if (bits & NOTIFY_CLOCK_ACCEPTED) - complete(&dice->clock_accepted); - wake_up(&dice->hwdep_wait); -} - -static int dice_rate_constraint(struct snd_pcm_hw_params *params, - struct snd_pcm_hw_rule *rule) -{ - struct dice *dice = rule->private; - const struct snd_interval *channels = - hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS); - struct snd_interval *rate = - hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); - struct snd_interval allowed_rates = { - .min = UINT_MAX, .max = 0, .integer = 1 - }; - unsigned int i, mode; - - for (i = 0; i < ARRAY_SIZE(dice_rates); ++i) { - mode = rate_index_to_mode(i); - if ((dice->clock_caps & (1 << i)) && - snd_interval_test(channels, dice->rx_channels[mode])) { - allowed_rates.min = min(allowed_rates.min, - dice_rates[i]); - allowed_rates.max = max(allowed_rates.max, - dice_rates[i]); - } - } - - return snd_interval_refine(rate, &allowed_rates); -} - -static int dice_channels_constraint(struct snd_pcm_hw_params *params, - struct snd_pcm_hw_rule *rule) -{ - struct dice *dice = rule->private; - const struct snd_interval *rate = - hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_RATE); - struct snd_interval *channels = - hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); - struct snd_interval allowed_channels = { - .min = UINT_MAX, .max = 0, .integer = 1 - }; - unsigned int i, mode; - - for (i = 0; i < ARRAY_SIZE(dice_rates); ++i) - if ((dice->clock_caps & (1 << i)) && - snd_interval_test(rate, dice_rates[i])) { - mode = rate_index_to_mode(i); - allowed_channels.min = min(allowed_channels.min, - dice->rx_channels[mode]); - allowed_channels.max = max(allowed_channels.max, - dice->rx_channels[mode]); - } - - return snd_interval_refine(channels, &allowed_channels); -} - -static int dice_open(struct snd_pcm_substream *substream) -{ - static const struct snd_pcm_hardware hardware = { - .info = SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_MMAP_VALID | - SNDRV_PCM_INFO_BATCH | - SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_BLOCK_TRANSFER, - .formats = AMDTP_OUT_PCM_FORMAT_BITS, - .channels_min = UINT_MAX, - .channels_max = 0, - .buffer_bytes_max = 16 * 1024 * 1024, - .period_bytes_min = 1, - .period_bytes_max = UINT_MAX, - .periods_min = 1, - .periods_max = UINT_MAX, - }; - struct dice *dice = substream->private_data; - struct snd_pcm_runtime *runtime = substream->runtime; - unsigned int i; - int err; - - err = dice_try_lock(dice); - if (err < 0) - goto error; - - runtime->hw = hardware; - - for (i = 0; i < ARRAY_SIZE(dice_rates); ++i) - if (dice->clock_caps & (1 << i)) - runtime->hw.rates |= - snd_pcm_rate_to_rate_bit(dice_rates[i]); - snd_pcm_limit_hw_rates(runtime); - - for (i = 0; i < 3; ++i) - if (dice->rx_channels[i]) { - runtime->hw.channels_min = min(runtime->hw.channels_min, - dice->rx_channels[i]); - runtime->hw.channels_max = max(runtime->hw.channels_max, - dice->rx_channels[i]); - } - - err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, - dice_rate_constraint, dice, - SNDRV_PCM_HW_PARAM_CHANNELS, -1); - if (err < 0) - goto err_lock; - err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, - dice_channels_constraint, dice, - SNDRV_PCM_HW_PARAM_RATE, -1); - if (err < 0) - goto err_lock; - - err = amdtp_stream_add_pcm_hw_constraints(&dice->stream, runtime); - if (err < 0) - goto err_lock; - - return 0; - -err_lock: - dice_unlock(dice); -error: - return err; -} - -static int dice_close(struct snd_pcm_substream *substream) -{ - struct dice *dice = substream->private_data; - - dice_unlock(dice); - - return 0; -} - -static int dice_stream_start_packets(struct dice *dice) -{ - int err; - - if (amdtp_stream_running(&dice->stream)) - return 0; - - err = amdtp_stream_start(&dice->stream, dice->resources.channel, - fw_parent_device(dice->unit)->max_speed); - if (err < 0) - return err; - - err = dice_enable_set(dice); - if (err < 0) { - amdtp_stream_stop(&dice->stream); - return err; - } - - return 0; -} - -static int dice_stream_start(struct dice *dice) -{ - __be32 channel; - int err; - - if (!dice->resources.allocated) { - err = fw_iso_resources_allocate(&dice->resources, - amdtp_stream_get_max_payload(&dice->stream), - fw_parent_device(dice->unit)->max_speed); - if (err < 0) - goto error; - - channel = cpu_to_be32(dice->resources.channel); - err = snd_fw_transaction(dice->unit, - TCODE_WRITE_QUADLET_REQUEST, - rx_address(dice, RX_ISOCHRONOUS), - &channel, 4, 0); - if (err < 0) - goto err_resources; - } - - err = dice_stream_start_packets(dice); - if (err < 0) - goto err_rx_channel; - - return 0; - -err_rx_channel: - channel = cpu_to_be32((u32)-1); - snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST, - rx_address(dice, RX_ISOCHRONOUS), &channel, 4, 0); -err_resources: - fw_iso_resources_free(&dice->resources); -error: - return err; -} - -static void dice_stream_stop_packets(struct dice *dice) -{ - if (amdtp_stream_running(&dice->stream)) { - dice_enable_clear(dice); - amdtp_stream_stop(&dice->stream); - } -} - -static void dice_stream_stop(struct dice *dice) -{ - __be32 channel; - - dice_stream_stop_packets(dice); - - if (!dice->resources.allocated) - return; - - channel = cpu_to_be32((u32)-1); - snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST, - rx_address(dice, RX_ISOCHRONOUS), &channel, 4, 0); - - fw_iso_resources_free(&dice->resources); -} - -static int dice_change_rate(struct dice *dice, unsigned int clock_rate) -{ - __be32 value; - int err; - - reinit_completion(&dice->clock_accepted); - - value = cpu_to_be32(clock_rate | CLOCK_SOURCE_ARX1); - err = snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST, - global_address(dice, GLOBAL_CLOCK_SELECT), - &value, 4, 0); - if (err < 0) - return err; - - if (!wait_for_completion_timeout(&dice->clock_accepted, - msecs_to_jiffies(100))) - dev_warn(&dice->unit->device, "clock change timed out\n"); - - return 0; -} - -static int dice_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params) -{ - struct dice *dice = substream->private_data; - unsigned int rate_index, mode, rate, channels, i; - int err; - - mutex_lock(&dice->mutex); - dice_stream_stop(dice); - mutex_unlock(&dice->mutex); - - err = snd_pcm_lib_alloc_vmalloc_buffer(substream, - params_buffer_bytes(hw_params)); - if (err < 0) - return err; - - rate = params_rate(hw_params); - rate_index = rate_to_index(rate); - err = dice_change_rate(dice, rate_index << CLOCK_RATE_SHIFT); - if (err < 0) - return err; - - /* - * At 176.4/192.0 kHz, Dice has a quirk to transfer two PCM frames in - * one data block of AMDTP packet. Thus sampling transfer frequency is - * a half of PCM sampling frequency, i.e. PCM frames at 192.0 kHz are - * transferred on AMDTP packets at 96 kHz. Two successive samples of a - * channel are stored consecutively in the packet. This quirk is called - * as 'Dual Wire'. - * For this quirk, blocking mode is required and PCM buffer size should - * be aligned to SYT_INTERVAL. - */ - channels = params_channels(hw_params); - if (rate_index > 4) { - if (channels > AMDTP_MAX_CHANNELS_FOR_PCM / 2) { - err = -ENOSYS; - return err; - } - - rate /= 2; - channels *= 2; - dice->stream.double_pcm_frames = true; - } else { - dice->stream.double_pcm_frames = false; - } - - mode = rate_index_to_mode(rate_index); - amdtp_stream_set_parameters(&dice->stream, rate, channels, - dice->rx_midi_ports[mode]); - if (rate_index > 4) { - channels /= 2; - - for (i = 0; i < channels; i++) { - dice->stream.pcm_positions[i] = i * 2; - dice->stream.pcm_positions[i + channels] = i * 2 + 1; - } - } - - amdtp_stream_set_pcm_format(&dice->stream, - params_format(hw_params)); - - return 0; -} - -static int dice_hw_free(struct snd_pcm_substream *substream) -{ - struct dice *dice = substream->private_data; - - mutex_lock(&dice->mutex); - dice_stream_stop(dice); - mutex_unlock(&dice->mutex); - - return snd_pcm_lib_free_vmalloc_buffer(substream); -} - -static int dice_prepare(struct snd_pcm_substream *substream) -{ - struct dice *dice = substream->private_data; - int err; - - mutex_lock(&dice->mutex); - - if (amdtp_streaming_error(&dice->stream)) - dice_stream_stop_packets(dice); - - err = dice_stream_start(dice); - if (err < 0) { - mutex_unlock(&dice->mutex); - return err; - } - - mutex_unlock(&dice->mutex); - - amdtp_stream_pcm_prepare(&dice->stream); - - return 0; -} - -static int dice_trigger(struct snd_pcm_substream *substream, int cmd) -{ - struct dice *dice = substream->private_data; - struct snd_pcm_substream *pcm; - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - pcm = substream; - break; - case SNDRV_PCM_TRIGGER_STOP: - pcm = NULL; - break; - default: - return -EINVAL; - } - amdtp_stream_pcm_trigger(&dice->stream, pcm); - - return 0; -} - -static snd_pcm_uframes_t dice_pointer(struct snd_pcm_substream *substream) -{ - struct dice *dice = substream->private_data; - - return amdtp_stream_pcm_pointer(&dice->stream); -} - -static int dice_create_pcm(struct dice *dice) -{ - static struct snd_pcm_ops ops = { - .open = dice_open, - .close = dice_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = dice_hw_params, - .hw_free = dice_hw_free, - .prepare = dice_prepare, - .trigger = dice_trigger, - .pointer = dice_pointer, - .page = snd_pcm_lib_get_vmalloc_page, - .mmap = snd_pcm_lib_mmap_vmalloc, - }; - struct snd_pcm *pcm; - int err; - - err = snd_pcm_new(dice->card, "DICE", 0, 1, 0, &pcm); - if (err < 0) - return err; - pcm->private_data = dice; - strcpy(pcm->name, dice->card->shortname); - pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->ops = &ops; - - return 0; -} - -static long dice_hwdep_read(struct snd_hwdep *hwdep, char __user *buf, - long count, loff_t *offset) -{ - struct dice *dice = hwdep->private_data; - DEFINE_WAIT(wait); - union snd_firewire_event event; - - spin_lock_irq(&dice->lock); - - while (!dice->dev_lock_changed && dice->notification_bits == 0) { - prepare_to_wait(&dice->hwdep_wait, &wait, TASK_INTERRUPTIBLE); - spin_unlock_irq(&dice->lock); - schedule(); - finish_wait(&dice->hwdep_wait, &wait); - if (signal_pending(current)) - return -ERESTARTSYS; - spin_lock_irq(&dice->lock); - } - - memset(&event, 0, sizeof(event)); - if (dice->dev_lock_changed) { - event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS; - event.lock_status.status = dice->dev_lock_count > 0; - dice->dev_lock_changed = false; - - count = min(count, (long)sizeof(event.lock_status)); - } else { - event.dice_notification.type = SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION; - event.dice_notification.notification = dice->notification_bits; - dice->notification_bits = 0; - - count = min(count, (long)sizeof(event.dice_notification)); - } - - spin_unlock_irq(&dice->lock); - - if (copy_to_user(buf, &event, count)) - return -EFAULT; - - return count; -} - -static unsigned int dice_hwdep_poll(struct snd_hwdep *hwdep, struct file *file, - poll_table *wait) -{ - struct dice *dice = hwdep->private_data; - unsigned int events; - - poll_wait(file, &dice->hwdep_wait, wait); - - spin_lock_irq(&dice->lock); - if (dice->dev_lock_changed || dice->notification_bits != 0) - events = POLLIN | POLLRDNORM; - else - events = 0; - spin_unlock_irq(&dice->lock); - - return events; -} - -static int dice_hwdep_get_info(struct dice *dice, void __user *arg) -{ - struct fw_device *dev = fw_parent_device(dice->unit); - struct snd_firewire_get_info info; - - memset(&info, 0, sizeof(info)); - info.type = SNDRV_FIREWIRE_TYPE_DICE; - info.card = dev->card->index; - *(__be32 *)&info.guid[0] = cpu_to_be32(dev->config_rom[3]); - *(__be32 *)&info.guid[4] = cpu_to_be32(dev->config_rom[4]); - strlcpy(info.device_name, dev_name(&dev->device), - sizeof(info.device_name)); - - if (copy_to_user(arg, &info, sizeof(info))) - return -EFAULT; - - return 0; -} - -static int dice_hwdep_lock(struct dice *dice) -{ - int err; - - spin_lock_irq(&dice->lock); - - if (dice->dev_lock_count == 0) { - dice->dev_lock_count = -1; - err = 0; - } else { - err = -EBUSY; - } - - spin_unlock_irq(&dice->lock); - - return err; -} - -static int dice_hwdep_unlock(struct dice *dice) -{ - int err; - - spin_lock_irq(&dice->lock); - - if (dice->dev_lock_count == -1) { - dice->dev_lock_count = 0; - err = 0; - } else { - err = -EBADFD; - } - - spin_unlock_irq(&dice->lock); - - return err; -} - -static int dice_hwdep_release(struct snd_hwdep *hwdep, struct file *file) -{ - struct dice *dice = hwdep->private_data; - - spin_lock_irq(&dice->lock); - if (dice->dev_lock_count == -1) - dice->dev_lock_count = 0; - spin_unlock_irq(&dice->lock); - - return 0; -} - -static int dice_hwdep_ioctl(struct snd_hwdep *hwdep, struct file *file, - unsigned int cmd, unsigned long arg) -{ - struct dice *dice = hwdep->private_data; - - switch (cmd) { - case SNDRV_FIREWIRE_IOCTL_GET_INFO: - return dice_hwdep_get_info(dice, (void __user *)arg); - case SNDRV_FIREWIRE_IOCTL_LOCK: - return dice_hwdep_lock(dice); - case SNDRV_FIREWIRE_IOCTL_UNLOCK: - return dice_hwdep_unlock(dice); - default: - return -ENOIOCTLCMD; - } -} - -#ifdef CONFIG_COMPAT -static int dice_hwdep_compat_ioctl(struct snd_hwdep *hwdep, struct file *file, - unsigned int cmd, unsigned long arg) -{ - return dice_hwdep_ioctl(hwdep, file, cmd, - (unsigned long)compat_ptr(arg)); -} -#else -#define dice_hwdep_compat_ioctl NULL -#endif - -static int dice_create_hwdep(struct dice *dice) -{ - static const struct snd_hwdep_ops ops = { - .read = dice_hwdep_read, - .release = dice_hwdep_release, - .poll = dice_hwdep_poll, - .ioctl = dice_hwdep_ioctl, - .ioctl_compat = dice_hwdep_compat_ioctl, - }; - struct snd_hwdep *hwdep; - int err; - - err = snd_hwdep_new(dice->card, "DICE", 0, &hwdep); - if (err < 0) - return err; - strcpy(hwdep->name, "DICE"); - hwdep->iface = SNDRV_HWDEP_IFACE_FW_DICE; - hwdep->ops = ops; - hwdep->private_data = dice; - hwdep->exclusive = true; - - return 0; -} - -static int dice_proc_read_mem(struct dice *dice, void *buffer, - unsigned int offset_q, unsigned int quadlets) -{ - unsigned int i; - int err; - - err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST, - DICE_PRIVATE_SPACE + 4 * offset_q, - buffer, 4 * quadlets, 0); - if (err < 0) - return err; - - for (i = 0; i < quadlets; ++i) - be32_to_cpus(&((u32 *)buffer)[i]); - - return 0; -} - -static const char *str_from_array(const char *const strs[], unsigned int count, - unsigned int i) -{ - if (i < count) - return strs[i]; - else - return "(unknown)"; -} - -static void dice_proc_fixup_string(char *s, unsigned int size) -{ - unsigned int i; - - for (i = 0; i < size; i += 4) - cpu_to_le32s((u32 *)(s + i)); - - for (i = 0; i < size - 2; ++i) { - if (s[i] == '\0') - return; - if (s[i] == '\\' && s[i + 1] == '\\') { - s[i + 2] = '\0'; - return; - } - } - s[size - 1] = '\0'; -} - -static void dice_proc_read(struct snd_info_entry *entry, - struct snd_info_buffer *buffer) -{ - static const char *const section_names[5] = { - "global", "tx", "rx", "ext_sync", "unused2" - }; - static const char *const clock_sources[] = { - "aes1", "aes2", "aes3", "aes4", "aes", "adat", "tdif", - "wc", "arx1", "arx2", "arx3", "arx4", "internal" - }; - static const char *const rates[] = { - "32000", "44100", "48000", "88200", "96000", "176400", "192000", - "any low", "any mid", "any high", "none" - }; - struct dice *dice = entry->private_data; - u32 sections[ARRAY_SIZE(section_names) * 2]; - struct { - u32 number; - u32 size; - } tx_rx_header; - union { - struct { - u32 owner_hi, owner_lo; - u32 notification; - char nick_name[NICK_NAME_SIZE]; - u32 clock_select; - u32 enable; - u32 status; - u32 extended_status; - u32 sample_rate; - u32 version; - u32 clock_caps; - char clock_source_names[CLOCK_SOURCE_NAMES_SIZE]; - } global; - struct { - u32 iso; - u32 number_audio; - u32 number_midi; - u32 speed; - char names[TX_NAMES_SIZE]; - u32 ac3_caps; - u32 ac3_enable; - } tx; - struct { - u32 iso; - u32 seq_start; - u32 number_audio; - u32 number_midi; - char names[RX_NAMES_SIZE]; - u32 ac3_caps; - u32 ac3_enable; - } rx; - struct { - u32 clock_source; - u32 locked; - u32 rate; - u32 adat_user_data; - } ext_sync; - } buf; - unsigned int quadlets, stream, i; - - if (dice_proc_read_mem(dice, sections, 0, ARRAY_SIZE(sections)) < 0) - return; - snd_iprintf(buffer, "sections:\n"); - for (i = 0; i < ARRAY_SIZE(section_names); ++i) - snd_iprintf(buffer, " %s: offset %u, size %u\n", - section_names[i], - sections[i * 2], sections[i * 2 + 1]); - - quadlets = min_t(u32, sections[1], sizeof(buf.global) / 4); - if (dice_proc_read_mem(dice, &buf.global, sections[0], quadlets) < 0) - return; - snd_iprintf(buffer, "global:\n"); - snd_iprintf(buffer, " owner: %04x:%04x%08x\n", - buf.global.owner_hi >> 16, - buf.global.owner_hi & 0xffff, buf.global.owner_lo); - snd_iprintf(buffer, " notification: %08x\n", buf.global.notification); - dice_proc_fixup_string(buf.global.nick_name, NICK_NAME_SIZE); - snd_iprintf(buffer, " nick name: %s\n", buf.global.nick_name); - snd_iprintf(buffer, " clock select: %s %s\n", - str_from_array(clock_sources, ARRAY_SIZE(clock_sources), - buf.global.clock_select & CLOCK_SOURCE_MASK), - str_from_array(rates, ARRAY_SIZE(rates), - (buf.global.clock_select & CLOCK_RATE_MASK) - >> CLOCK_RATE_SHIFT)); - snd_iprintf(buffer, " enable: %u\n", buf.global.enable); - snd_iprintf(buffer, " status: %slocked %s\n", - buf.global.status & STATUS_SOURCE_LOCKED ? "" : "un", - str_from_array(rates, ARRAY_SIZE(rates), - (buf.global.status & - STATUS_NOMINAL_RATE_MASK) - >> CLOCK_RATE_SHIFT)); - snd_iprintf(buffer, " ext status: %08x\n", buf.global.extended_status); - snd_iprintf(buffer, " sample rate: %u\n", buf.global.sample_rate); - snd_iprintf(buffer, " version: %u.%u.%u.%u\n", - (buf.global.version >> 24) & 0xff, - (buf.global.version >> 16) & 0xff, - (buf.global.version >> 8) & 0xff, - (buf.global.version >> 0) & 0xff); - if (quadlets >= 90) { - snd_iprintf(buffer, " clock caps:"); - for (i = 0; i <= 6; ++i) - if (buf.global.clock_caps & (1 << i)) - snd_iprintf(buffer, " %s", rates[i]); - for (i = 0; i <= 12; ++i) - if (buf.global.clock_caps & (1 << (16 + i))) - snd_iprintf(buffer, " %s", clock_sources[i]); - snd_iprintf(buffer, "\n"); - dice_proc_fixup_string(buf.global.clock_source_names, - CLOCK_SOURCE_NAMES_SIZE); - snd_iprintf(buffer, " clock source names: %s\n", - buf.global.clock_source_names); - } - - if (dice_proc_read_mem(dice, &tx_rx_header, sections[2], 2) < 0) - return; - quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.tx) / 4); - for (stream = 0; stream < tx_rx_header.number; ++stream) { - if (dice_proc_read_mem(dice, &buf.tx, sections[2] + 2 + - stream * tx_rx_header.size, - quadlets) < 0) - break; - snd_iprintf(buffer, "tx %u:\n", stream); - snd_iprintf(buffer, " iso channel: %d\n", (int)buf.tx.iso); - snd_iprintf(buffer, " audio channels: %u\n", - buf.tx.number_audio); - snd_iprintf(buffer, " midi ports: %u\n", buf.tx.number_midi); - snd_iprintf(buffer, " speed: S%u\n", 100u << buf.tx.speed); - if (quadlets >= 68) { - dice_proc_fixup_string(buf.tx.names, TX_NAMES_SIZE); - snd_iprintf(buffer, " names: %s\n", buf.tx.names); - } - if (quadlets >= 70) { - snd_iprintf(buffer, " ac3 caps: %08x\n", - buf.tx.ac3_caps); - snd_iprintf(buffer, " ac3 enable: %08x\n", - buf.tx.ac3_enable); - } - } - - if (dice_proc_read_mem(dice, &tx_rx_header, sections[4], 2) < 0) - return; - quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.rx) / 4); - for (stream = 0; stream < tx_rx_header.number; ++stream) { - if (dice_proc_read_mem(dice, &buf.rx, sections[4] + 2 + - stream * tx_rx_header.size, - quadlets) < 0) - break; - snd_iprintf(buffer, "rx %u:\n", stream); - snd_iprintf(buffer, " iso channel: %d\n", (int)buf.rx.iso); - snd_iprintf(buffer, " sequence start: %u\n", buf.rx.seq_start); - snd_iprintf(buffer, " audio channels: %u\n", - buf.rx.number_audio); - snd_iprintf(buffer, " midi ports: %u\n", buf.rx.number_midi); - if (quadlets >= 68) { - dice_proc_fixup_string(buf.rx.names, RX_NAMES_SIZE); - snd_iprintf(buffer, " names: %s\n", buf.rx.names); - } - if (quadlets >= 70) { - snd_iprintf(buffer, " ac3 caps: %08x\n", - buf.rx.ac3_caps); - snd_iprintf(buffer, " ac3 enable: %08x\n", - buf.rx.ac3_enable); - } - } - - quadlets = min_t(u32, sections[7], sizeof(buf.ext_sync) / 4); - if (quadlets >= 4) { - if (dice_proc_read_mem(dice, &buf.ext_sync, - sections[6], 4) < 0) - return; - snd_iprintf(buffer, "ext status:\n"); - snd_iprintf(buffer, " clock source: %s\n", - str_from_array(clock_sources, - ARRAY_SIZE(clock_sources), - buf.ext_sync.clock_source)); - snd_iprintf(buffer, " locked: %u\n", buf.ext_sync.locked); - snd_iprintf(buffer, " rate: %s\n", - str_from_array(rates, ARRAY_SIZE(rates), - buf.ext_sync.rate)); - snd_iprintf(buffer, " adat user data: "); - if (buf.ext_sync.adat_user_data & ADAT_USER_DATA_NO_DATA) - snd_iprintf(buffer, "-\n"); - else - snd_iprintf(buffer, "%x\n", - buf.ext_sync.adat_user_data); - } -} - -static void dice_create_proc(struct dice *dice) -{ - struct snd_info_entry *entry; - - if (!snd_card_proc_new(dice->card, "dice", &entry)) - snd_info_set_text_ops(entry, dice, dice_proc_read); -} - -static void dice_card_free(struct snd_card *card) -{ - struct dice *dice = card->private_data; - - amdtp_stream_destroy(&dice->stream); - fw_core_remove_address_handler(&dice->notification_handler); - mutex_destroy(&dice->mutex); -} - -#define OUI_WEISS 0x001c6a - -#define DICE_CATEGORY_ID 0x04 -#define WEISS_CATEGORY_ID 0x00 - -static int dice_interface_check(struct fw_unit *unit) -{ - static const int min_values[10] = { - 10, 0x64 / 4, - 10, 0x18 / 4, - 10, 0x18 / 4, - 0, 0, - 0, 0, - }; - struct fw_device *device = fw_parent_device(unit); - struct fw_csr_iterator it; - int key, value, vendor = -1, model = -1, err; - unsigned int category, i; - __be32 pointers[ARRAY_SIZE(min_values)]; - __be32 tx_data[4]; - __be32 version; - - /* - * Check that GUID and unit directory are constructed according to DICE - * rules, i.e., that the specifier ID is the GUID's OUI, and that the - * GUID chip ID consists of the 8-bit category ID, the 10-bit product - * ID, and a 22-bit serial number. - */ - fw_csr_iterator_init(&it, unit->directory); - while (fw_csr_iterator_next(&it, &key, &value)) { - switch (key) { - case CSR_SPECIFIER_ID: - vendor = value; - break; - case CSR_MODEL: - model = value; - break; - } - } - if (vendor == OUI_WEISS) - category = WEISS_CATEGORY_ID; - else - category = DICE_CATEGORY_ID; - if (device->config_rom[3] != ((vendor << 8) | category) || - device->config_rom[4] >> 22 != model) - return -ENODEV; - - /* - * Check that the sub address spaces exist and are located inside the - * private address space. The minimum values are chosen so that all - * minimally required registers are included. - */ - err = snd_fw_transaction(unit, TCODE_READ_BLOCK_REQUEST, - DICE_PRIVATE_SPACE, - pointers, sizeof(pointers), 0); - if (err < 0) - return -ENODEV; - for (i = 0; i < ARRAY_SIZE(pointers); ++i) { - value = be32_to_cpu(pointers[i]); - if (value < min_values[i] || value >= 0x40000) - return -ENODEV; - } - - /* We support playback only. Let capture devices be handled by FFADO. */ - err = snd_fw_transaction(unit, TCODE_READ_BLOCK_REQUEST, - DICE_PRIVATE_SPACE + - be32_to_cpu(pointers[2]) * 4, - tx_data, sizeof(tx_data), 0); - if (err < 0 || (tx_data[0] && tx_data[3])) - return -ENODEV; - - /* - * Check that the implemented DICE driver specification major version - * number matches. - */ - err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST, - DICE_PRIVATE_SPACE + - be32_to_cpu(pointers[0]) * 4 + GLOBAL_VERSION, - &version, 4, 0); - if (err < 0) - return -ENODEV; - if ((version & cpu_to_be32(0xff000000)) != cpu_to_be32(0x01000000)) { - dev_err(&unit->device, - "unknown DICE version: 0x%08x\n", be32_to_cpu(version)); - return -ENODEV; - } - - return 0; -} - -static int highest_supported_mode_rate(struct dice *dice, unsigned int mode) -{ - int i; - - for (i = ARRAY_SIZE(dice_rates) - 1; i >= 0; --i) - if ((dice->clock_caps & (1 << i)) && - rate_index_to_mode(i) == mode) - return i; - - return -1; -} - -static int dice_read_mode_params(struct dice *dice, unsigned int mode) -{ - __be32 values[2]; - int rate_index, err; - - rate_index = highest_supported_mode_rate(dice, mode); - if (rate_index < 0) { - dice->rx_channels[mode] = 0; - dice->rx_midi_ports[mode] = 0; - return 0; - } - - err = dice_change_rate(dice, rate_index << CLOCK_RATE_SHIFT); - if (err < 0) - return err; - - err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST, - rx_address(dice, RX_NUMBER_AUDIO), - values, 2 * 4, 0); - if (err < 0) - return err; - - dice->rx_channels[mode] = be32_to_cpu(values[0]); - dice->rx_midi_ports[mode] = be32_to_cpu(values[1]); - - return 0; -} - -static int dice_read_params(struct dice *dice) -{ - __be32 pointers[6]; - __be32 value; - int mode, err; - - err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST, - DICE_PRIVATE_SPACE, - pointers, sizeof(pointers), 0); - if (err < 0) - return err; - - dice->global_offset = be32_to_cpu(pointers[0]) * 4; - dice->rx_offset = be32_to_cpu(pointers[4]) * 4; - - /* some very old firmwares don't tell about their clock support */ - if (be32_to_cpu(pointers[1]) * 4 >= GLOBAL_CLOCK_CAPABILITIES + 4) { - err = snd_fw_transaction( - dice->unit, TCODE_READ_QUADLET_REQUEST, - global_address(dice, GLOBAL_CLOCK_CAPABILITIES), - &value, 4, 0); - if (err < 0) - return err; - dice->clock_caps = be32_to_cpu(value); - } else { - /* this should be supported by any device */ - dice->clock_caps = CLOCK_CAP_RATE_44100 | - CLOCK_CAP_RATE_48000 | - CLOCK_CAP_SOURCE_ARX1 | - CLOCK_CAP_SOURCE_INTERNAL; - } - - for (mode = 2; mode >= 0; --mode) { - err = dice_read_mode_params(dice, mode); - if (err < 0) - return err; - } - - return 0; -} - -static void dice_card_strings(struct dice *dice) -{ - struct snd_card *card = dice->card; - struct fw_device *dev = fw_parent_device(dice->unit); - char vendor[32], model[32]; - unsigned int i; - int err; - - strcpy(card->driver, "DICE"); - - strcpy(card->shortname, "DICE"); - BUILD_BUG_ON(NICK_NAME_SIZE < sizeof(card->shortname)); - err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST, - global_address(dice, GLOBAL_NICK_NAME), - card->shortname, sizeof(card->shortname), 0); - if (err >= 0) { - /* DICE strings are returned in "always-wrong" endianness */ - BUILD_BUG_ON(sizeof(card->shortname) % 4 != 0); - for (i = 0; i < sizeof(card->shortname); i += 4) - swab32s((u32 *)&card->shortname[i]); - card->shortname[sizeof(card->shortname) - 1] = '\0'; - } - - strcpy(vendor, "?"); - fw_csr_string(dev->config_rom + 5, CSR_VENDOR, vendor, sizeof(vendor)); - strcpy(model, "?"); - fw_csr_string(dice->unit->directory, CSR_MODEL, model, sizeof(model)); - snprintf(card->longname, sizeof(card->longname), - "%s %s (serial %u) at %s, S%d", - vendor, model, dev->config_rom[4] & 0x3fffff, - dev_name(&dice->unit->device), 100 << dev->max_speed); - - strcpy(card->mixername, "DICE"); -} - -static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id) -{ - struct snd_card *card; - struct dice *dice; - __be32 clock_sel; - int err; - - err = dice_interface_check(unit); - if (err < 0) - return err; - - err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE, - sizeof(*dice), &card); - if (err < 0) - return err; - - dice = card->private_data; - dice->card = card; - spin_lock_init(&dice->lock); - mutex_init(&dice->mutex); - dice->unit = unit; - init_completion(&dice->clock_accepted); - init_waitqueue_head(&dice->hwdep_wait); - - dice->notification_handler.length = 4; - dice->notification_handler.address_callback = dice_notification; - dice->notification_handler.callback_data = dice; - err = fw_core_add_address_handler(&dice->notification_handler, - &fw_high_memory_region); - if (err < 0) - goto err_mutex; - - err = dice_owner_set(dice); - if (err < 0) - goto err_notification_handler; - - err = dice_read_params(dice); - if (err < 0) - goto err_owner; - - err = fw_iso_resources_init(&dice->resources, unit); - if (err < 0) - goto err_owner; - dice->resources.channels_mask = 0x00000000ffffffffuLL; - - err = amdtp_stream_init(&dice->stream, unit, AMDTP_OUT_STREAM, - CIP_BLOCKING); - if (err < 0) - goto err_resources; - - card->private_free = dice_card_free; - - dice_card_strings(dice); - - err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST, - global_address(dice, GLOBAL_CLOCK_SELECT), - &clock_sel, 4, 0); - if (err < 0) - goto error; - clock_sel &= cpu_to_be32(~CLOCK_SOURCE_MASK); - clock_sel |= cpu_to_be32(CLOCK_SOURCE_ARX1); - err = snd_fw_transaction(unit, TCODE_WRITE_QUADLET_REQUEST, - global_address(dice, GLOBAL_CLOCK_SELECT), - &clock_sel, 4, 0); - if (err < 0) - goto error; - - err = dice_create_pcm(dice); - if (err < 0) - goto error; - - err = dice_create_hwdep(dice); - if (err < 0) - goto error; - - dice_create_proc(dice); - - err = snd_card_register(card); - if (err < 0) - goto error; - - dev_set_drvdata(&unit->device, dice); - - return 0; - -err_resources: - fw_iso_resources_destroy(&dice->resources); -err_owner: - dice_owner_clear(dice); -err_notification_handler: - fw_core_remove_address_handler(&dice->notification_handler); -err_mutex: - mutex_destroy(&dice->mutex); -error: - snd_card_free(card); - return err; -} - -static void dice_remove(struct fw_unit *unit) -{ - struct dice *dice = dev_get_drvdata(&unit->device); - - amdtp_stream_pcm_abort(&dice->stream); - - snd_card_disconnect(dice->card); - - mutex_lock(&dice->mutex); - - dice_stream_stop(dice); - dice_owner_clear(dice); - - mutex_unlock(&dice->mutex); - - snd_card_free_when_closed(dice->card); -} - -static void dice_bus_reset(struct fw_unit *unit) -{ - struct dice *dice = dev_get_drvdata(&unit->device); - - /* - * On a bus reset, the DICE firmware disables streaming and then goes - * off contemplating its own navel for hundreds of milliseconds before - * it can react to any of our attempts to reenable streaming. This - * means that we lose synchronization anyway, so we force our streams - * to stop so that the application can restart them in an orderly - * manner. - */ - amdtp_stream_pcm_abort(&dice->stream); - - mutex_lock(&dice->mutex); - - dice->global_enabled = false; - dice_stream_stop_packets(dice); - - dice_owner_update(dice); - - fw_iso_resources_update(&dice->resources); - - mutex_unlock(&dice->mutex); -} - -#define DICE_INTERFACE 0x000001 - -static const struct ieee1394_device_id dice_id_table[] = { - { - .match_flags = IEEE1394_MATCH_VERSION, - .version = DICE_INTERFACE, - }, - { } -}; -MODULE_DEVICE_TABLE(ieee1394, dice_id_table); - -static struct fw_driver dice_driver = { - .driver = { - .owner = THIS_MODULE, - .name = KBUILD_MODNAME, - .bus = &fw_bus_type, - }, - .probe = dice_probe, - .update = dice_bus_reset, - .remove = dice_remove, - .id_table = dice_id_table, -}; - -static int __init alsa_dice_init(void) -{ - return driver_register(&dice_driver.driver); -} - -static void __exit alsa_dice_exit(void) -{ - driver_unregister(&dice_driver.driver); -} - -module_init(alsa_dice_init); -module_exit(alsa_dice_exit); diff --git a/sound/firewire/dice/Makefile b/sound/firewire/dice/Makefile new file mode 100644 index 0000000..9a48289 --- /dev/null +++ b/sound/firewire/dice/Makefile @@ -0,0 +1,3 @@ +snd-dice-objs := dice-transaction.o dice-stream.o dice-proc.o dice-pcm.o \ + dice-hwdep.o dice.o +obj-m += snd-dice.o diff --git a/sound/firewire/dice/dice-hwdep.c b/sound/firewire/dice/dice-hwdep.c new file mode 100644 index 0000000..a4dc02a --- /dev/null +++ b/sound/firewire/dice/dice-hwdep.c @@ -0,0 +1,190 @@ +/* + * dice_hwdep.c - a part of driver for DICE based devices + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Copyright (c) 2014 Takashi Sakamoto <o-takashi@sakamocchi.jp> + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "dice.h" + +static long hwdep_read(struct snd_hwdep *hwdep, char __user *buf, + long count, loff_t *offset) +{ + struct snd_dice *dice = hwdep->private_data; + DEFINE_WAIT(wait); + union snd_firewire_event event; + + spin_lock_irq(&dice->lock); + + while (!dice->dev_lock_changed && dice->notification_bits == 0) { + prepare_to_wait(&dice->hwdep_wait, &wait, TASK_INTERRUPTIBLE); + spin_unlock_irq(&dice->lock); + schedule(); + finish_wait(&dice->hwdep_wait, &wait); + if (signal_pending(current)) + return -ERESTARTSYS; + spin_lock_irq(&dice->lock); + } + + memset(&event, 0, sizeof(event)); + if (dice->dev_lock_changed) { + event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS; + event.lock_status.status = dice->dev_lock_count > 0; + dice->dev_lock_changed = false; + + count = min_t(long, count, sizeof(event.lock_status)); + } else { + event.dice_notification.type = + SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION; + event.dice_notification.notification = dice->notification_bits; + dice->notification_bits = 0; + + count = min_t(long, count, sizeof(event.dice_notification)); + } + + spin_unlock_irq(&dice->lock); + + if (copy_to_user(buf, &event, count)) + return -EFAULT; + + return count; +} + +static unsigned int hwdep_poll(struct snd_hwdep *hwdep, struct file *file, + poll_table *wait) +{ + struct snd_dice *dice = hwdep->private_data; + unsigned int events; + + poll_wait(file, &dice->hwdep_wait, wait); + + spin_lock_irq(&dice->lock); + if (dice->dev_lock_changed || dice->notification_bits != 0) + events = POLLIN | POLLRDNORM; + else + events = 0; + spin_unlock_irq(&dice->lock); + + return events; +} + +static int hwdep_get_info(struct snd_dice *dice, void __user *arg) +{ + struct fw_device *dev = fw_parent_device(dice->unit); + struct snd_firewire_get_info info; + + memset(&info, 0, sizeof(info)); + info.type = SNDRV_FIREWIRE_TYPE_DICE; + info.card = dev->card->index; + *(__be32 *)&info.guid[0] = cpu_to_be32(dev->config_rom[3]); + *(__be32 *)&info.guid[4] = cpu_to_be32(dev->config_rom[4]); + strlcpy(info.device_name, dev_name(&dev->device), + sizeof(info.device_name)); + + if (copy_to_user(arg, &info, sizeof(info))) + return -EFAULT; + + return 0; +} + +static int hwdep_lock(struct snd_dice *dice) +{ + int err; + + spin_lock_irq(&dice->lock); + + if (dice->dev_lock_count == 0) { + dice->dev_lock_count = -1; + err = 0; + } else { + err = -EBUSY; + } + + spin_unlock_irq(&dice->lock); + + return err; +} + +static int hwdep_unlock(struct snd_dice *dice) +{ + int err; + + spin_lock_irq(&dice->lock); + + if (dice->dev_lock_count == -1) { + dice->dev_lock_count = 0; + err = 0; + } else { + err = -EBADFD; + } + + spin_unlock_irq(&dice->lock); + + return err; +} + +static int hwdep_release(struct snd_hwdep *hwdep, struct file *file) +{ + struct snd_dice *dice = hwdep->private_data; + + spin_lock_irq(&dice->lock); + if (dice->dev_lock_count == -1) + dice->dev_lock_count = 0; + spin_unlock_irq(&dice->lock); + + return 0; +} + +static int hwdep_ioctl(struct snd_hwdep *hwdep, struct file *file, + unsigned int cmd, unsigned long arg) +{ + struct snd_dice *dice = hwdep->private_data; + + switch (cmd) { + case SNDRV_FIREWIRE_IOCTL_GET_INFO: + return hwdep_get_info(dice, (void __user *)arg); + case SNDRV_FIREWIRE_IOCTL_LOCK: + return hwdep_lock(dice); + case SNDRV_FIREWIRE_IOCTL_UNLOCK: + return hwdep_unlock(dice); + default: + return -ENOIOCTLCMD; + } +} + +#ifdef CONFIG_COMPAT +static int hwdep_compat_ioctl(struct snd_hwdep *hwdep, struct file *file, + unsigned int cmd, unsigned long arg) +{ + return hwdep_ioctl(hwdep, file, cmd, + (unsigned long)compat_ptr(arg)); +} +#else +#define hwdep_compat_ioctl NULL +#endif + +int snd_dice_create_hwdep(struct snd_dice *dice) +{ + static const struct snd_hwdep_ops ops = { + .read = hwdep_read, + .release = hwdep_release, + .poll = hwdep_poll, + .ioctl = hwdep_ioctl, + .ioctl_compat = hwdep_compat_ioctl, + }; + struct snd_hwdep *hwdep; + int err; + + err = snd_hwdep_new(dice->card, "DICE", 0, &hwdep); + if (err < 0) + return err; + strcpy(hwdep->name, "DICE"); + hwdep->iface = SNDRV_HWDEP_IFACE_FW_DICE; + hwdep->ops = ops; + hwdep->private_data = dice; + hwdep->exclusive = true; + + return 0; +} diff --git a/sound/firewire/dice-interface.h b/sound/firewire/dice/dice-interface.h index 27b044f..27b044f 100644 --- a/sound/firewire/dice-interface.h +++ b/sound/firewire/dice/dice-interface.h diff --git a/sound/firewire/dice/dice-pcm.c b/sound/firewire/dice/dice-pcm.c new file mode 100644 index 0000000..2e531bd --- /dev/null +++ b/sound/firewire/dice/dice-pcm.c @@ -0,0 +1,317 @@ +/* + * dice_pcm.c - a part of driver for DICE based devices + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Copyright (c) 2014 Takashi Sakamoto <o-takashi@sakamocchi.jp> + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "dice.h" + +static int dice_rate_constraint(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + struct snd_dice *dice = rule->private; + + const struct snd_interval *c = + hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS); + struct snd_interval *r = + hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + struct snd_interval rates = { + .min = UINT_MAX, .max = 0, .integer = 1 + }; + unsigned int i, rate, mode, *pcm_channels = dice->rx_channels; + + for (i = 0; i < ARRAY_SIZE(snd_dice_rates); ++i) { + rate = snd_dice_rates[i]; + if (snd_dice_stream_get_rate_mode(dice, rate, &mode) < 0) + continue; + + if (!snd_interval_test(c, pcm_channels[mode])) + continue; + + rates.min = min(rates.min, rate); + rates.max = max(rates.max, rate); + } + + return snd_interval_refine(r, &rates); +} + +static int dice_channels_constraint(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + struct snd_dice *dice = rule->private; + + const struct snd_interval *r = + hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_RATE); + struct snd_interval *c = + hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); + struct snd_interval channels = { + .min = UINT_MAX, .max = 0, .integer = 1 + }; + unsigned int i, rate, mode, *pcm_channels = dice->rx_channels; + + for (i = 0; i < ARRAY_SIZE(snd_dice_rates); ++i) { + rate = snd_dice_rates[i]; + if (snd_dice_stream_get_rate_mode(dice, rate, &mode) < 0) + continue; + + if (!snd_interval_test(r, rate)) + continue; + + channels.min = min(channels.min, pcm_channels[mode]); + channels.max = max(channels.max, pcm_channels[mode]); + } + + return snd_interval_refine(c, &channels); +} + +static void limit_channels_and_rates(struct snd_dice *dice, + struct snd_pcm_runtime *runtime, + unsigned int *pcm_channels) +{ + struct snd_pcm_hardware *hw = &runtime->hw; + unsigned int i, rate, mode; + + hw->channels_min = UINT_MAX; + hw->channels_max = 0; + + for (i = 0; i < ARRAY_SIZE(snd_dice_rates); ++i) { + rate = snd_dice_rates[i]; + if (snd_dice_stream_get_rate_mode(dice, rate, &mode) < 0) + continue; + hw->rates |= snd_pcm_rate_to_rate_bit(rate); + + if (pcm_channels[mode] == 0) + continue; + hw->channels_min = min(hw->channels_min, pcm_channels[mode]); + hw->channels_max = max(hw->channels_max, pcm_channels[mode]); + } + + snd_pcm_limit_hw_rates(runtime); +} + +static void limit_period_and_buffer(struct snd_pcm_hardware *hw) +{ + hw->periods_min = 2; /* SNDRV_PCM_INFO_BATCH */ + hw->periods_max = UINT_MAX; + + hw->period_bytes_min = 4 * hw->channels_max; /* byte for a frame */ + + /* Just to prevent from allocating much pages. */ + hw->period_bytes_max = hw->period_bytes_min * 2048; + hw->buffer_bytes_max = hw->period_bytes_max * hw->periods_min; +} + +static int init_hw_info(struct snd_dice *dice, + struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_pcm_hardware *hw = &runtime->hw; + int err; + + hw->info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_BATCH | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER; + hw->formats = AMDTP_OUT_PCM_FORMAT_BITS; + + limit_channels_and_rates(dice, runtime, dice->rx_channels); + limit_period_and_buffer(hw); + + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + dice_rate_constraint, dice, + SNDRV_PCM_HW_PARAM_CHANNELS, -1); + if (err < 0) + goto end; + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + dice_channels_constraint, dice, + SNDRV_PCM_HW_PARAM_RATE, -1); + if (err < 0) + goto end; + + err = amdtp_stream_add_pcm_hw_constraints(&dice->rx_stream, runtime); +end: + return err; +} + +static int pcm_open(struct snd_pcm_substream *substream) +{ + struct snd_dice *dice = substream->private_data; + int err; + + err = snd_dice_stream_lock_try(dice); + if (err < 0) + goto end; + + err = init_hw_info(dice, substream); + if (err < 0) + goto err_locked; +end: + return err; +err_locked: + snd_dice_stream_lock_release(dice); + return err; +} + +static int pcm_close(struct snd_pcm_substream *substream) +{ + struct snd_dice *dice = substream->private_data; + + snd_dice_stream_lock_release(dice); + + return 0; +} + +static int playback_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct snd_dice *dice = substream->private_data; + unsigned int mode, rate, channels, i; + int err; + + mutex_lock(&dice->mutex); + snd_dice_stream_stop(dice); + mutex_unlock(&dice->mutex); + + err = snd_pcm_lib_alloc_vmalloc_buffer(substream, + params_buffer_bytes(hw_params)); + if (err < 0) + return err; + + rate = params_rate(hw_params); + err = snd_dice_transaction_set_rate(dice, rate); + if (err < 0) + return err; + + if (snd_dice_stream_get_rate_mode(dice, rate, &mode) < 0) + return err; + + /* + * At 176.4/192.0 kHz, Dice has a quirk to transfer two PCM frames in + * one data block of AMDTP packet. Thus sampling transfer frequency is + * a half of PCM sampling frequency, i.e. PCM frames at 192.0 kHz are + * transferred on AMDTP packets at 96 kHz. Two successive samples of a + * channel are stored consecutively in the packet. This quirk is called + * as 'Dual Wire'. + * For this quirk, blocking mode is required and PCM buffer size should + * be aligned to SYT_INTERVAL. + */ + channels = params_channels(hw_params); + if (mode > 1) { + if (channels > AMDTP_MAX_CHANNELS_FOR_PCM / 2) { + err = -ENOSYS; + return err; + } + + rate /= 2; + channels *= 2; + dice->rx_stream.double_pcm_frames = true; + } else { + dice->rx_stream.double_pcm_frames = false; + } + + amdtp_stream_set_parameters(&dice->rx_stream, rate, channels, + dice->rx_midi_ports[mode]); + if (mode > 1) { + channels /= 2; + + for (i = 0; i < channels; i++) { + dice->rx_stream.pcm_positions[i] = i * 2; + dice->rx_stream.pcm_positions[i + channels] = i * 2 + 1; + } + } + + amdtp_stream_set_pcm_format(&dice->rx_stream, + params_format(hw_params)); + + return 0; +} + +static int playback_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_dice *dice = substream->private_data; + + mutex_lock(&dice->mutex); + snd_dice_stream_stop(dice); + mutex_unlock(&dice->mutex); + + return snd_pcm_lib_free_vmalloc_buffer(substream); +} + +static int playback_prepare(struct snd_pcm_substream *substream) +{ + struct snd_dice *dice = substream->private_data; + int err; + + mutex_lock(&dice->mutex); + + if (amdtp_streaming_error(&dice->rx_stream)) + snd_dice_stream_stop_packets(dice); + + err = snd_dice_stream_start(dice); + if (err < 0) { + mutex_unlock(&dice->mutex); + return err; + } + + mutex_unlock(&dice->mutex); + + amdtp_stream_pcm_prepare(&dice->rx_stream); + + return 0; +} + +static int playback_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_dice *dice = substream->private_data; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + amdtp_stream_pcm_trigger(&dice->rx_stream, substream); + break; + case SNDRV_PCM_TRIGGER_STOP: + amdtp_stream_pcm_trigger(&dice->rx_stream, NULL); + break; + default: + return -EINVAL; + } + + return 0; +} + +static snd_pcm_uframes_t playback_pointer(struct snd_pcm_substream *substream) +{ + struct snd_dice *dice = substream->private_data; + + return amdtp_stream_pcm_pointer(&dice->rx_stream); +} + +int snd_dice_create_pcm(struct snd_dice *dice) +{ + static struct snd_pcm_ops playback_ops = { + .open = pcm_open, + .close = pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = playback_hw_params, + .hw_free = playback_hw_free, + .prepare = playback_prepare, + .trigger = playback_trigger, + .pointer = playback_pointer, + .page = snd_pcm_lib_get_vmalloc_page, + .mmap = snd_pcm_lib_mmap_vmalloc, + }; + struct snd_pcm *pcm; + int err; + + err = snd_pcm_new(dice->card, "DICE", 0, 1, 0, &pcm); + if (err < 0) + return err; + pcm->private_data = dice; + strcpy(pcm->name, dice->card->shortname); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops); + + return 0; +} diff --git a/sound/firewire/dice/dice-proc.c b/sound/firewire/dice/dice-proc.c new file mode 100644 index 0000000..f5c1d1b --- /dev/null +++ b/sound/firewire/dice/dice-proc.c @@ -0,0 +1,252 @@ +/* + * dice_proc.c - a part of driver for Dice based devices + * + * Copyright (c) Clemens Ladisch + * Copyright (c) 2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "dice.h" + +static int dice_proc_read_mem(struct snd_dice *dice, void *buffer, + unsigned int offset_q, unsigned int quadlets) +{ + unsigned int i; + int err; + + err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST, + DICE_PRIVATE_SPACE + 4 * offset_q, + buffer, 4 * quadlets, 0); + if (err < 0) + return err; + + for (i = 0; i < quadlets; ++i) + be32_to_cpus(&((u32 *)buffer)[i]); + + return 0; +} + +static const char *str_from_array(const char *const strs[], unsigned int count, + unsigned int i) +{ + if (i < count) + return strs[i]; + + return "(unknown)"; +} + +static void dice_proc_fixup_string(char *s, unsigned int size) +{ + unsigned int i; + + for (i = 0; i < size; i += 4) + cpu_to_le32s((u32 *)(s + i)); + + for (i = 0; i < size - 2; ++i) { + if (s[i] == '\0') + return; + if (s[i] == '\\' && s[i + 1] == '\\') { + s[i + 2] = '\0'; + return; + } + } + s[size - 1] = '\0'; +} + +static void dice_proc_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + static const char *const section_names[5] = { + "global", "tx", "rx", "ext_sync", "unused2" + }; + static const char *const clock_sources[] = { + "aes1", "aes2", "aes3", "aes4", "aes", "adat", "tdif", + "wc", "arx1", "arx2", "arx3", "arx4", "internal" + }; + static const char *const rates[] = { + "32000", "44100", "48000", "88200", "96000", "176400", "192000", + "any low", "any mid", "any high", "none" + }; + struct snd_dice *dice = entry->private_data; + u32 sections[ARRAY_SIZE(section_names) * 2]; + struct { + u32 number; + u32 size; + } tx_rx_header; + union { + struct { + u32 owner_hi, owner_lo; + u32 notification; + char nick_name[NICK_NAME_SIZE]; + u32 clock_select; + u32 enable; + u32 status; + u32 extended_status; + u32 sample_rate; + u32 version; + u32 clock_caps; + char clock_source_names[CLOCK_SOURCE_NAMES_SIZE]; + } global; + struct { + u32 iso; + u32 number_audio; + u32 number_midi; + u32 speed; + char names[TX_NAMES_SIZE]; + u32 ac3_caps; + u32 ac3_enable; + } tx; + struct { + u32 iso; + u32 seq_start; + u32 number_audio; + u32 number_midi; + char names[RX_NAMES_SIZE]; + u32 ac3_caps; + u32 ac3_enable; + } rx; + struct { + u32 clock_source; + u32 locked; + u32 rate; + u32 adat_user_data; + } ext_sync; + } buf; + unsigned int quadlets, stream, i; + + if (dice_proc_read_mem(dice, sections, 0, ARRAY_SIZE(sections)) < 0) + return; + snd_iprintf(buffer, "sections:\n"); + for (i = 0; i < ARRAY_SIZE(section_names); ++i) + snd_iprintf(buffer, " %s: offset %u, size %u\n", + section_names[i], + sections[i * 2], sections[i * 2 + 1]); + + quadlets = min_t(u32, sections[1], sizeof(buf.global) / 4); + if (dice_proc_read_mem(dice, &buf.global, sections[0], quadlets) < 0) + return; + snd_iprintf(buffer, "global:\n"); + snd_iprintf(buffer, " owner: %04x:%04x%08x\n", + buf.global.owner_hi >> 16, + buf.global.owner_hi & 0xffff, buf.global.owner_lo); + snd_iprintf(buffer, " notification: %08x\n", buf.global.notification); + dice_proc_fixup_string(buf.global.nick_name, NICK_NAME_SIZE); + snd_iprintf(buffer, " nick name: %s\n", buf.global.nick_name); + snd_iprintf(buffer, " clock select: %s %s\n", + str_from_array(clock_sources, ARRAY_SIZE(clock_sources), + buf.global.clock_select & CLOCK_SOURCE_MASK), + str_from_array(rates, ARRAY_SIZE(rates), + (buf.global.clock_select & CLOCK_RATE_MASK) + >> CLOCK_RATE_SHIFT)); + snd_iprintf(buffer, " enable: %u\n", buf.global.enable); + snd_iprintf(buffer, " status: %slocked %s\n", + buf.global.status & STATUS_SOURCE_LOCKED ? "" : "un", + str_from_array(rates, ARRAY_SIZE(rates), + (buf.global.status & + STATUS_NOMINAL_RATE_MASK) + >> CLOCK_RATE_SHIFT)); + snd_iprintf(buffer, " ext status: %08x\n", buf.global.extended_status); + snd_iprintf(buffer, " sample rate: %u\n", buf.global.sample_rate); + snd_iprintf(buffer, " version: %u.%u.%u.%u\n", + (buf.global.version >> 24) & 0xff, + (buf.global.version >> 16) & 0xff, + (buf.global.version >> 8) & 0xff, + (buf.global.version >> 0) & 0xff); + if (quadlets >= 90) { + snd_iprintf(buffer, " clock caps:"); + for (i = 0; i <= 6; ++i) + if (buf.global.clock_caps & (1 << i)) + snd_iprintf(buffer, " %s", rates[i]); + for (i = 0; i <= 12; ++i) + if (buf.global.clock_caps & (1 << (16 + i))) + snd_iprintf(buffer, " %s", clock_sources[i]); + snd_iprintf(buffer, "\n"); + dice_proc_fixup_string(buf.global.clock_source_names, + CLOCK_SOURCE_NAMES_SIZE); + snd_iprintf(buffer, " clock source names: %s\n", + buf.global.clock_source_names); + } + + if (dice_proc_read_mem(dice, &tx_rx_header, sections[2], 2) < 0) + return; + quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.tx) / 4); + for (stream = 0; stream < tx_rx_header.number; ++stream) { + if (dice_proc_read_mem(dice, &buf.tx, sections[2] + 2 + + stream * tx_rx_header.size, + quadlets) < 0) + break; + snd_iprintf(buffer, "tx %u:\n", stream); + snd_iprintf(buffer, " iso channel: %d\n", (int)buf.tx.iso); + snd_iprintf(buffer, " audio channels: %u\n", + buf.tx.number_audio); + snd_iprintf(buffer, " midi ports: %u\n", buf.tx.number_midi); + snd_iprintf(buffer, " speed: S%u\n", 100u << buf.tx.speed); + if (quadlets >= 68) { + dice_proc_fixup_string(buf.tx.names, TX_NAMES_SIZE); + snd_iprintf(buffer, " names: %s\n", buf.tx.names); + } + if (quadlets >= 70) { + snd_iprintf(buffer, " ac3 caps: %08x\n", + buf.tx.ac3_caps); + snd_iprintf(buffer, " ac3 enable: %08x\n", + buf.tx.ac3_enable); + } + } + + if (dice_proc_read_mem(dice, &tx_rx_header, sections[4], 2) < 0) + return; + quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.rx) / 4); + for (stream = 0; stream < tx_rx_header.number; ++stream) { + if (dice_proc_read_mem(dice, &buf.rx, sections[4] + 2 + + stream * tx_rx_header.size, + quadlets) < 0) + break; + snd_iprintf(buffer, "rx %u:\n", stream); + snd_iprintf(buffer, " iso channel: %d\n", (int)buf.rx.iso); + snd_iprintf(buffer, " sequence start: %u\n", buf.rx.seq_start); + snd_iprintf(buffer, " audio channels: %u\n", + buf.rx.number_audio); + snd_iprintf(buffer, " midi ports: %u\n", buf.rx.number_midi); + if (quadlets >= 68) { + dice_proc_fixup_string(buf.rx.names, RX_NAMES_SIZE); + snd_iprintf(buffer, " names: %s\n", buf.rx.names); + } + if (quadlets >= 70) { + snd_iprintf(buffer, " ac3 caps: %08x\n", + buf.rx.ac3_caps); + snd_iprintf(buffer, " ac3 enable: %08x\n", + buf.rx.ac3_enable); + } + } + + quadlets = min_t(u32, sections[7], sizeof(buf.ext_sync) / 4); + if (quadlets >= 4) { + if (dice_proc_read_mem(dice, &buf.ext_sync, + sections[6], 4) < 0) + return; + snd_iprintf(buffer, "ext status:\n"); + snd_iprintf(buffer, " clock source: %s\n", + str_from_array(clock_sources, + ARRAY_SIZE(clock_sources), + buf.ext_sync.clock_source)); + snd_iprintf(buffer, " locked: %u\n", buf.ext_sync.locked); + snd_iprintf(buffer, " rate: %s\n", + str_from_array(rates, ARRAY_SIZE(rates), + buf.ext_sync.rate)); + snd_iprintf(buffer, " adat user data: "); + if (buf.ext_sync.adat_user_data & ADAT_USER_DATA_NO_DATA) + snd_iprintf(buffer, "-\n"); + else + snd_iprintf(buffer, "%x\n", + buf.ext_sync.adat_user_data); + } +} + +void snd_dice_create_proc(struct snd_dice *dice) +{ + struct snd_info_entry *entry; + + if (!snd_card_proc_new(dice->card, "dice", &entry)) + snd_info_set_text_ops(entry, dice, dice_proc_read); +} diff --git a/sound/firewire/dice/dice-stream.c b/sound/firewire/dice/dice-stream.c new file mode 100644 index 0000000..4c4c4ff --- /dev/null +++ b/sound/firewire/dice/dice-stream.c @@ -0,0 +1,207 @@ +/* + * dice_stream.c - a part of driver for DICE based devices + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Copyright (c) 2014 Takashi Sakamoto <o-takashi@sakamocchi.jp> + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "dice.h" + +const unsigned int snd_dice_rates[SND_DICE_RATES_COUNT] = { + /* mode 0 */ + [0] = 32000, + [1] = 44100, + [2] = 48000, + /* mode 1 */ + [3] = 88200, + [4] = 96000, + /* mode 2 */ + [5] = 176400, + [6] = 192000, +}; + +int snd_dice_stream_get_rate_mode(struct snd_dice *dice, unsigned int rate, + unsigned int *mode) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(snd_dice_rates); i++) { + if (!(dice->clock_caps & BIT(i))) + continue; + if (snd_dice_rates[i] != rate) + continue; + + *mode = (i - 1) / 2; + return 0; + } + return -EINVAL; +} + +int snd_dice_stream_start_packets(struct snd_dice *dice) +{ + int err; + + if (amdtp_stream_running(&dice->rx_stream)) + return 0; + + err = amdtp_stream_start(&dice->rx_stream, dice->rx_resources.channel, + fw_parent_device(dice->unit)->max_speed); + if (err < 0) + return err; + + err = snd_dice_transaction_set_enable(dice); + if (err < 0) { + amdtp_stream_stop(&dice->rx_stream); + return err; + } + + return 0; +} + +int snd_dice_stream_start(struct snd_dice *dice) +{ + __be32 channel; + int err; + + if (!dice->rx_resources.allocated) { + err = fw_iso_resources_allocate(&dice->rx_resources, + amdtp_stream_get_max_payload(&dice->rx_stream), + fw_parent_device(dice->unit)->max_speed); + if (err < 0) + goto error; + + channel = cpu_to_be32(dice->rx_resources.channel); + err = snd_dice_transaction_write_tx(dice, RX_ISOCHRONOUS, + &channel, 4); + if (err < 0) + goto err_resources; + } + + err = snd_dice_stream_start_packets(dice); + if (err < 0) + goto err_rx_channel; + + return 0; + +err_rx_channel: + channel = cpu_to_be32((u32)-1); + snd_dice_transaction_write_rx(dice, RX_ISOCHRONOUS, &channel, 4); +err_resources: + fw_iso_resources_free(&dice->rx_resources); +error: + return err; +} + +void snd_dice_stream_stop_packets(struct snd_dice *dice) +{ + if (!amdtp_stream_running(&dice->rx_stream)) + return; + + snd_dice_transaction_clear_enable(dice); + amdtp_stream_stop(&dice->rx_stream); +} + +void snd_dice_stream_stop(struct snd_dice *dice) +{ + __be32 channel; + + snd_dice_stream_stop_packets(dice); + + if (!dice->rx_resources.allocated) + return; + + channel = cpu_to_be32((u32)-1); + snd_dice_transaction_write_rx(dice, RX_ISOCHRONOUS, &channel, 4); + + fw_iso_resources_free(&dice->rx_resources); +} + +int snd_dice_stream_init(struct snd_dice *dice) +{ + int err; + + err = fw_iso_resources_init(&dice->rx_resources, dice->unit); + if (err < 0) + goto end; + dice->rx_resources.channels_mask = 0x00000000ffffffffuLL; + + err = amdtp_stream_init(&dice->rx_stream, dice->unit, AMDTP_OUT_STREAM, + CIP_BLOCKING); + if (err < 0) + goto error; + + err = snd_dice_transaction_set_clock_source(dice, CLOCK_SOURCE_ARX1); + if (err < 0) + goto error; +end: + return err; +error: + amdtp_stream_destroy(&dice->rx_stream); + fw_iso_resources_destroy(&dice->rx_resources); + return err; +} + +void snd_dice_stream_destroy(struct snd_dice *dice) +{ + amdtp_stream_pcm_abort(&dice->rx_stream); + snd_dice_stream_stop(dice); + amdtp_stream_destroy(&dice->rx_stream); + fw_iso_resources_destroy(&dice->rx_resources); +} + +void snd_dice_stream_update(struct snd_dice *dice) +{ + /* + * On a bus reset, the DICE firmware disables streaming and then goes + * off contemplating its own navel for hundreds of milliseconds before + * it can react to any of our attempts to reenable streaming. This + * means that we lose synchronization anyway, so we force our streams + * to stop so that the application can restart them in an orderly + * manner. + */ + dice->global_enabled = false; + + amdtp_stream_pcm_abort(&dice->rx_stream); + snd_dice_stream_stop_packets(dice); + fw_iso_resources_update(&dice->rx_resources); +} + +static void dice_lock_changed(struct snd_dice *dice) +{ + dice->dev_lock_changed = true; + wake_up(&dice->hwdep_wait); +} + +int snd_dice_stream_lock_try(struct snd_dice *dice) +{ + int err; + + spin_lock_irq(&dice->lock); + + if (dice->dev_lock_count < 0) { + err = -EBUSY; + goto out; + } + + if (dice->dev_lock_count++ == 0) + dice_lock_changed(dice); + err = 0; +out: + spin_unlock_irq(&dice->lock); + return err; +} + +void snd_dice_stream_lock_release(struct snd_dice *dice) +{ + spin_lock_irq(&dice->lock); + + if (WARN_ON(dice->dev_lock_count <= 0)) + goto out; + + if (--dice->dev_lock_count == 0) + dice_lock_changed(dice); +out: + spin_unlock_irq(&dice->lock); +} diff --git a/sound/firewire/dice/dice-transaction.c b/sound/firewire/dice/dice-transaction.c new file mode 100644 index 0000000..1fe304c --- /dev/null +++ b/sound/firewire/dice/dice-transaction.c @@ -0,0 +1,387 @@ +/* + * dice_transaction.c - a part of driver for Dice based devices + * + * Copyright (c) Clemens Ladisch + * Copyright (c) 2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "dice.h" + +#define NOTIFICATION_TIMEOUT_MS 100 + +static u64 get_subaddr(struct snd_dice *dice, enum snd_dice_addr_type type, + u64 offset) +{ + switch (type) { + case SND_DICE_ADDR_TYPE_TX: + offset += dice->tx_offset; + break; + case SND_DICE_ADDR_TYPE_RX: + offset += dice->rx_offset; + break; + case SND_DICE_ADDR_TYPE_SYNC: + offset += dice->sync_offset; + break; + case SND_DICE_ADDR_TYPE_RSRV: + offset += dice->rsrv_offset; + break; + case SND_DICE_ADDR_TYPE_GLOBAL: + default: + offset += dice->global_offset; + break; + } + offset += DICE_PRIVATE_SPACE; + return offset; +} + +int snd_dice_transaction_write(struct snd_dice *dice, + enum snd_dice_addr_type type, + unsigned int offset, void *buf, unsigned int len) +{ + return snd_fw_transaction(dice->unit, + (len == 4) ? TCODE_WRITE_QUADLET_REQUEST : + TCODE_WRITE_BLOCK_REQUEST, + get_subaddr(dice, type, offset), buf, len, 0); +} + +int snd_dice_transaction_read(struct snd_dice *dice, + enum snd_dice_addr_type type, unsigned int offset, + void *buf, unsigned int len) +{ + return snd_fw_transaction(dice->unit, + (len == 4) ? TCODE_READ_QUADLET_REQUEST : + TCODE_READ_BLOCK_REQUEST, + get_subaddr(dice, type, offset), buf, len, 0); +} + +static unsigned int get_clock_info(struct snd_dice *dice, __be32 *info) +{ + return snd_dice_transaction_read_global(dice, GLOBAL_CLOCK_SELECT, + info, 4); +} + +static int set_clock_info(struct snd_dice *dice, + unsigned int rate, unsigned int source) +{ + unsigned int retries = 3; + unsigned int i; + __be32 info; + u32 mask; + u32 clock; + int err; +retry: + err = get_clock_info(dice, &info); + if (err < 0) + goto end; + + clock = be32_to_cpu(info); + if (source != UINT_MAX) { + mask = CLOCK_SOURCE_MASK; + clock &= ~mask; + clock |= source; + } + if (rate != UINT_MAX) { + for (i = 0; i < ARRAY_SIZE(snd_dice_rates); i++) { + if (snd_dice_rates[i] == rate) + break; + } + if (i == ARRAY_SIZE(snd_dice_rates)) { + err = -EINVAL; + goto end; + } + + mask = CLOCK_RATE_MASK; + clock &= ~mask; + clock |= i << CLOCK_RATE_SHIFT; + } + info = cpu_to_be32(clock); + + if (completion_done(&dice->clock_accepted)) + reinit_completion(&dice->clock_accepted); + + err = snd_dice_transaction_write_global(dice, GLOBAL_CLOCK_SELECT, + &info, 4); + if (err < 0) + goto end; + + /* Timeout means it's invalid request, probably bus reset occurred. */ + if (wait_for_completion_timeout(&dice->clock_accepted, + msecs_to_jiffies(NOTIFICATION_TIMEOUT_MS)) == 0) { + if (retries-- == 0) { + err = -ETIMEDOUT; + goto end; + } + + err = snd_dice_transaction_reinit(dice); + if (err < 0) + goto end; + + msleep(500); /* arbitrary */ + goto retry; + } +end: + return err; +} + +int snd_dice_transaction_get_clock_source(struct snd_dice *dice, + unsigned int *source) +{ + __be32 info; + int err; + + err = get_clock_info(dice, &info); + if (err >= 0) + *source = be32_to_cpu(info) & CLOCK_SOURCE_MASK; + + return err; +} +int snd_dice_transaction_set_clock_source(struct snd_dice *dice, + unsigned int source) +{ + return set_clock_info(dice, UINT_MAX, source); +} + +int snd_dice_transaction_get_rate(struct snd_dice *dice, unsigned int *rate) +{ + __be32 info; + unsigned int index; + int err; + + err = get_clock_info(dice, &info); + if (err < 0) + goto end; + + index = (be32_to_cpu(info) & CLOCK_RATE_MASK) >> CLOCK_RATE_SHIFT; + if (index >= SND_DICE_RATES_COUNT) { + err = -ENOSYS; + goto end; + } + + *rate = snd_dice_rates[index]; +end: + return err; +} +int snd_dice_transaction_set_rate(struct snd_dice *dice, unsigned int rate) +{ + return set_clock_info(dice, rate, UINT_MAX); +} + +int snd_dice_transaction_set_enable(struct snd_dice *dice) +{ + __be32 value; + int err = 0; + + if (dice->global_enabled) + goto end; + + value = cpu_to_be32(1); + err = snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST, + get_subaddr(dice, SND_DICE_ADDR_TYPE_GLOBAL, + GLOBAL_ENABLE), + &value, 4, + FW_FIXED_GENERATION | dice->owner_generation); + if (err < 0) + goto end; + + dice->global_enabled = true; +end: + return err; +} + +void snd_dice_transaction_clear_enable(struct snd_dice *dice) +{ + __be32 value; + + value = 0; + snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST, + get_subaddr(dice, SND_DICE_ADDR_TYPE_GLOBAL, + GLOBAL_ENABLE), + &value, 4, FW_QUIET | + FW_FIXED_GENERATION | dice->owner_generation); + + dice->global_enabled = false; +} + +static void dice_notification(struct fw_card *card, struct fw_request *request, + int tcode, int destination, int source, + int generation, unsigned long long offset, + void *data, size_t length, void *callback_data) +{ + struct snd_dice *dice = callback_data; + u32 bits; + unsigned long flags; + + if (tcode != TCODE_WRITE_QUADLET_REQUEST) { + fw_send_response(card, request, RCODE_TYPE_ERROR); + return; + } + if ((offset & 3) != 0) { + fw_send_response(card, request, RCODE_ADDRESS_ERROR); + return; + } + + bits = be32_to_cpup(data); + + spin_lock_irqsave(&dice->lock, flags); + dice->notification_bits |= bits; + spin_unlock_irqrestore(&dice->lock, flags); + + fw_send_response(card, request, RCODE_COMPLETE); + + if (bits & NOTIFY_CLOCK_ACCEPTED) + complete(&dice->clock_accepted); + wake_up(&dice->hwdep_wait); +} + +static int register_notification_address(struct snd_dice *dice, bool retry) +{ + struct fw_device *device = fw_parent_device(dice->unit); + __be64 *buffer; + unsigned int retries; + int err; + + retries = (retry) ? 3 : 0; + + buffer = kmalloc(2 * 8, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + for (;;) { + buffer[0] = cpu_to_be64(OWNER_NO_OWNER); + buffer[1] = cpu_to_be64( + ((u64)device->card->node_id << OWNER_NODE_SHIFT) | + dice->notification_handler.offset); + + dice->owner_generation = device->generation; + smp_rmb(); /* node_id vs. generation */ + err = snd_fw_transaction(dice->unit, TCODE_LOCK_COMPARE_SWAP, + get_subaddr(dice, + SND_DICE_ADDR_TYPE_GLOBAL, + GLOBAL_OWNER), + buffer, 2 * 8, + FW_FIXED_GENERATION | + dice->owner_generation); + if (err == 0) { + /* success */ + if (buffer[0] == cpu_to_be64(OWNER_NO_OWNER)) + break; + /* The address seems to be already registered. */ + if (buffer[0] == buffer[1]) + break; + + dev_err(&dice->unit->device, + "device is already in use\n"); + err = -EBUSY; + } + if (err != -EAGAIN || retries-- > 0) + break; + + msleep(20); + } + + kfree(buffer); + + if (err < 0) + dice->owner_generation = -1; + + return err; +} + +static void unregister_notification_address(struct snd_dice *dice) +{ + struct fw_device *device = fw_parent_device(dice->unit); + __be64 *buffer; + + buffer = kmalloc(2 * 8, GFP_KERNEL); + if (buffer == NULL) + return; + + buffer[0] = cpu_to_be64( + ((u64)device->card->node_id << OWNER_NODE_SHIFT) | + dice->notification_handler.offset); + buffer[1] = cpu_to_be64(OWNER_NO_OWNER); + snd_fw_transaction(dice->unit, TCODE_LOCK_COMPARE_SWAP, + get_subaddr(dice, SND_DICE_ADDR_TYPE_GLOBAL, + GLOBAL_OWNER), + buffer, 2 * 8, FW_QUIET | + FW_FIXED_GENERATION | dice->owner_generation); + + kfree(buffer); + + dice->owner_generation = -1; +} + +void snd_dice_transaction_destroy(struct snd_dice *dice) +{ + struct fw_address_handler *handler = &dice->notification_handler; + + if (handler->callback_data == NULL) + return; + + unregister_notification_address(dice); + + fw_core_remove_address_handler(handler); + handler->callback_data = NULL; +} + +int snd_dice_transaction_reinit(struct snd_dice *dice) +{ + struct fw_address_handler *handler = &dice->notification_handler; + + if (handler->callback_data == NULL) + return -EINVAL; + + return register_notification_address(dice, false); +} + +int snd_dice_transaction_init(struct snd_dice *dice) +{ + struct fw_address_handler *handler = &dice->notification_handler; + __be32 *pointers; + int err; + + /* Use the same way which dice_interface_check() does. */ + pointers = kmalloc(sizeof(__be32) * 10, GFP_KERNEL); + if (pointers == NULL) + return -ENOMEM; + + /* Get offsets for sub-addresses */ + err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST, + DICE_PRIVATE_SPACE, + pointers, sizeof(__be32) * 10, 0); + if (err < 0) + goto end; + + /* Allocation callback in address space over host controller */ + handler->length = 4; + handler->address_callback = dice_notification; + handler->callback_data = dice; + err = fw_core_add_address_handler(handler, &fw_high_memory_region); + if (err < 0) { + handler->callback_data = NULL; + goto end; + } + + /* Register the address space */ + err = register_notification_address(dice, true); + if (err < 0) { + fw_core_remove_address_handler(handler); + handler->callback_data = NULL; + goto end; + } + + dice->global_offset = be32_to_cpu(pointers[0]) * 4; + dice->tx_offset = be32_to_cpu(pointers[2]) * 4; + dice->rx_offset = be32_to_cpu(pointers[4]) * 4; + dice->sync_offset = be32_to_cpu(pointers[6]) * 4; + dice->rsrv_offset = be32_to_cpu(pointers[8]) * 4; + + /* Set up later. */ + if (be32_to_cpu(pointers[1]) * 4 >= GLOBAL_CLOCK_CAPABILITIES + 4) + dice->clock_caps = 1; +end: + kfree(pointers); + return err; +} diff --git a/sound/firewire/dice/dice.c b/sound/firewire/dice/dice.c new file mode 100644 index 0000000..8e2c172 --- /dev/null +++ b/sound/firewire/dice/dice.c @@ -0,0 +1,362 @@ +/* + * TC Applied Technologies Digital Interface Communications Engine driver + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "dice.h" + +MODULE_DESCRIPTION("DICE driver"); +MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); +MODULE_LICENSE("GPL v2"); + +#define OUI_WEISS 0x001c6a + +#define DICE_CATEGORY_ID 0x04 +#define WEISS_CATEGORY_ID 0x00 + +static int dice_interface_check(struct fw_unit *unit) +{ + static const int min_values[10] = { + 10, 0x64 / 4, + 10, 0x18 / 4, + 10, 0x18 / 4, + 0, 0, + 0, 0, + }; + struct fw_device *device = fw_parent_device(unit); + struct fw_csr_iterator it; + int key, val, vendor = -1, model = -1, err; + unsigned int category, i; + __be32 *pointers, value; + __be32 tx_data[4]; + __be32 version; + + pointers = kmalloc_array(ARRAY_SIZE(min_values), sizeof(__be32), + GFP_KERNEL); + if (pointers == NULL) + return -ENOMEM; + + /* + * Check that GUID and unit directory are constructed according to DICE + * rules, i.e., that the specifier ID is the GUID's OUI, and that the + * GUID chip ID consists of the 8-bit category ID, the 10-bit product + * ID, and a 22-bit serial number. + */ + fw_csr_iterator_init(&it, unit->directory); + while (fw_csr_iterator_next(&it, &key, &val)) { + switch (key) { + case CSR_SPECIFIER_ID: + vendor = val; + break; + case CSR_MODEL: + model = val; + break; + } + } + if (vendor == OUI_WEISS) + category = WEISS_CATEGORY_ID; + else + category = DICE_CATEGORY_ID; + if (device->config_rom[3] != ((vendor << 8) | category) || + device->config_rom[4] >> 22 != model) { + err = -ENODEV; + goto end; + } + + /* + * Check that the sub address spaces exist and are located inside the + * private address space. The minimum values are chosen so that all + * minimally required registers are included. + */ + err = snd_fw_transaction(unit, TCODE_READ_BLOCK_REQUEST, + DICE_PRIVATE_SPACE, pointers, + sizeof(__be32) * ARRAY_SIZE(min_values), 0); + if (err < 0) { + err = -ENODEV; + goto end; + } + for (i = 0; i < ARRAY_SIZE(min_values); ++i) { + value = be32_to_cpu(pointers[i]); + if (value < min_values[i] || value >= 0x40000) { + err = -ENODEV; + goto end; + } + } + + /* We support playback only. Let capture devices be handled by FFADO. */ + err = snd_fw_transaction(unit, TCODE_READ_BLOCK_REQUEST, + DICE_PRIVATE_SPACE + + be32_to_cpu(pointers[2]) * 4, + tx_data, sizeof(tx_data), 0); + if (err < 0 || (tx_data[0] && tx_data[3])) { + err = -ENODEV; + goto end; + } + + /* + * Check that the implemented DICE driver specification major version + * number matches. + */ + err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST, + DICE_PRIVATE_SPACE + + be32_to_cpu(pointers[0]) * 4 + GLOBAL_VERSION, + &version, 4, 0); + if (err < 0) { + err = -ENODEV; + goto end; + } + if ((version & cpu_to_be32(0xff000000)) != cpu_to_be32(0x01000000)) { + dev_err(&unit->device, + "unknown DICE version: 0x%08x\n", be32_to_cpu(version)); + err = -ENODEV; + goto end; + } +end: + return err; +} + +static int highest_supported_mode_rate(struct snd_dice *dice, + unsigned int mode, unsigned int *rate) +{ + unsigned int i, m; + + for (i = ARRAY_SIZE(snd_dice_rates); i > 0; i--) { + *rate = snd_dice_rates[i - 1]; + if (snd_dice_stream_get_rate_mode(dice, *rate, &m) < 0) + continue; + if (mode == m) + break; + } + if (i == 0) + return -EINVAL; + + return 0; +} + +static int dice_read_mode_params(struct snd_dice *dice, unsigned int mode) +{ + __be32 values[2]; + unsigned int rate; + int err; + + if (highest_supported_mode_rate(dice, mode, &rate) < 0) { + dice->rx_channels[mode] = 0; + dice->rx_midi_ports[mode] = 0; + return 0; + } + + err = snd_dice_transaction_set_rate(dice, rate); + if (err < 0) + return err; + + err = snd_dice_transaction_read_rx(dice, RX_NUMBER_AUDIO, + values, sizeof(values)); + if (err < 0) + return err; + + dice->rx_channels[mode] = be32_to_cpu(values[0]); + dice->rx_midi_ports[mode] = be32_to_cpu(values[1]); + + return 0; +} + +static int dice_read_params(struct snd_dice *dice) +{ + __be32 value; + int mode, err; + + /* some very old firmwares don't tell about their clock support */ + if (dice->clock_caps > 0) { + err = snd_dice_transaction_read_global(dice, + GLOBAL_CLOCK_CAPABILITIES, + &value, 4); + if (err < 0) + return err; + dice->clock_caps = be32_to_cpu(value); + } else { + /* this should be supported by any device */ + dice->clock_caps = CLOCK_CAP_RATE_44100 | + CLOCK_CAP_RATE_48000 | + CLOCK_CAP_SOURCE_ARX1 | + CLOCK_CAP_SOURCE_INTERNAL; + } + + for (mode = 2; mode >= 0; --mode) { + err = dice_read_mode_params(dice, mode); + if (err < 0) + return err; + } + + return 0; +} + +static void dice_card_strings(struct snd_dice *dice) +{ + struct snd_card *card = dice->card; + struct fw_device *dev = fw_parent_device(dice->unit); + char vendor[32], model[32]; + unsigned int i; + int err; + + strcpy(card->driver, "DICE"); + + strcpy(card->shortname, "DICE"); + BUILD_BUG_ON(NICK_NAME_SIZE < sizeof(card->shortname)); + err = snd_dice_transaction_read_global(dice, GLOBAL_NICK_NAME, + card->shortname, + sizeof(card->shortname)); + if (err >= 0) { + /* DICE strings are returned in "always-wrong" endianness */ + BUILD_BUG_ON(sizeof(card->shortname) % 4 != 0); + for (i = 0; i < sizeof(card->shortname); i += 4) + swab32s((u32 *)&card->shortname[i]); + card->shortname[sizeof(card->shortname) - 1] = '\0'; + } + + strcpy(vendor, "?"); + fw_csr_string(dev->config_rom + 5, CSR_VENDOR, vendor, sizeof(vendor)); + strcpy(model, "?"); + fw_csr_string(dice->unit->directory, CSR_MODEL, model, sizeof(model)); + snprintf(card->longname, sizeof(card->longname), + "%s %s (serial %u) at %s, S%d", + vendor, model, dev->config_rom[4] & 0x3fffff, + dev_name(&dice->unit->device), 100 << dev->max_speed); + + strcpy(card->mixername, "DICE"); +} + +static void dice_card_free(struct snd_card *card) +{ + struct snd_dice *dice = card->private_data; + + snd_dice_transaction_destroy(dice); + mutex_destroy(&dice->mutex); +} + +static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id) +{ + struct snd_card *card; + struct snd_dice *dice; + int err; + + err = dice_interface_check(unit); + if (err < 0) + goto end; + + err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE, + sizeof(*dice), &card); + if (err < 0) + goto end; + + dice = card->private_data; + dice->card = card; + dice->unit = unit; + card->private_free = dice_card_free; + + spin_lock_init(&dice->lock); + mutex_init(&dice->mutex); + init_completion(&dice->clock_accepted); + init_waitqueue_head(&dice->hwdep_wait); + + err = snd_dice_transaction_init(dice); + if (err < 0) + goto error; + + err = dice_read_params(dice); + if (err < 0) + goto error; + + dice_card_strings(dice); + + err = snd_dice_create_pcm(dice); + if (err < 0) + goto error; + + err = snd_dice_create_hwdep(dice); + if (err < 0) + goto error; + + snd_dice_create_proc(dice); + + err = snd_dice_stream_init(dice); + if (err < 0) + goto error; + + err = snd_card_register(card); + if (err < 0) { + snd_dice_stream_destroy(dice); + goto error; + } + + dev_set_drvdata(&unit->device, dice); +end: + return err; +error: + snd_card_free(card); + return err; +} + +static void dice_remove(struct fw_unit *unit) +{ + struct snd_dice *dice = dev_get_drvdata(&unit->device); + + snd_card_disconnect(dice->card); + + mutex_lock(&dice->mutex); + + snd_dice_stream_destroy(dice); + + mutex_unlock(&dice->mutex); + + snd_card_free_when_closed(dice->card); +} + +static void dice_bus_reset(struct fw_unit *unit) +{ + struct snd_dice *dice = dev_get_drvdata(&unit->device); + + /* The handler address register becomes initialized. */ + snd_dice_transaction_reinit(dice); + + mutex_lock(&dice->mutex); + snd_dice_stream_update(dice); + mutex_unlock(&dice->mutex); +} + +#define DICE_INTERFACE 0x000001 + +static const struct ieee1394_device_id dice_id_table[] = { + { + .match_flags = IEEE1394_MATCH_VERSION, + .version = DICE_INTERFACE, + }, + { } +}; +MODULE_DEVICE_TABLE(ieee1394, dice_id_table); + +static struct fw_driver dice_driver = { + .driver = { + .owner = THIS_MODULE, + .name = KBUILD_MODNAME, + .bus = &fw_bus_type, + }, + .probe = dice_probe, + .update = dice_bus_reset, + .remove = dice_remove, + .id_table = dice_id_table, +}; + +static int __init alsa_dice_init(void) +{ + return driver_register(&dice_driver.driver); +} + +static void __exit alsa_dice_exit(void) +{ + driver_unregister(&dice_driver.driver); +} + +module_init(alsa_dice_init); +module_exit(alsa_dice_exit); diff --git a/sound/firewire/dice/dice.h b/sound/firewire/dice/dice.h new file mode 100644 index 0000000..969189a --- /dev/null +++ b/sound/firewire/dice/dice.h @@ -0,0 +1,180 @@ +/* + * dice.h - a part of driver for Dice based devices + * + * Copyright (c) Clemens Ladisch + * Copyright (c) 2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#ifndef SOUND_DICE_H_INCLUDED +#define SOUND_DICE_H_INCLUDED + +#include <linux/compat.h> +#include <linux/completion.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/firewire.h> +#include <linux/firewire-constants.h> +#include <linux/jiffies.h> +#include <linux/module.h> +#include <linux/mod_devicetable.h> +#include <linux/mutex.h> +#include <linux/slab.h> +#include <linux/spinlock.h> +#include <linux/wait.h> + +#include <sound/control.h> +#include <sound/core.h> +#include <sound/firewire.h> +#include <sound/hwdep.h> +#include <sound/info.h> +#include <sound/initval.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> + +#include "../amdtp.h" +#include "../iso-resources.h" +#include "../lib.h" +#include "dice-interface.h" + +struct snd_dice { + struct snd_card *card; + struct fw_unit *unit; + spinlock_t lock; + struct mutex mutex; + + /* Offsets for sub-addresses */ + unsigned int global_offset; + unsigned int rx_offset; + unsigned int tx_offset; + unsigned int sync_offset; + unsigned int rsrv_offset; + + unsigned int clock_caps; + unsigned int rx_channels[3]; + unsigned int rx_midi_ports[3]; + struct fw_address_handler notification_handler; + int owner_generation; + int dev_lock_count; /* > 0 driver, < 0 userspace */ + bool dev_lock_changed; + bool global_enabled; + struct completion clock_accepted; + wait_queue_head_t hwdep_wait; + u32 notification_bits; + struct fw_iso_resources rx_resources; + struct amdtp_stream rx_stream; +}; + +enum snd_dice_addr_type { + SND_DICE_ADDR_TYPE_PRIVATE, + SND_DICE_ADDR_TYPE_GLOBAL, + SND_DICE_ADDR_TYPE_TX, + SND_DICE_ADDR_TYPE_RX, + SND_DICE_ADDR_TYPE_SYNC, + SND_DICE_ADDR_TYPE_RSRV, +}; + +int snd_dice_transaction_write(struct snd_dice *dice, + enum snd_dice_addr_type type, + unsigned int offset, + void *buf, unsigned int len); +int snd_dice_transaction_read(struct snd_dice *dice, + enum snd_dice_addr_type type, unsigned int offset, + void *buf, unsigned int len); + +static inline int snd_dice_transaction_write_global(struct snd_dice *dice, + unsigned int offset, + void *buf, unsigned int len) +{ + return snd_dice_transaction_write(dice, + SND_DICE_ADDR_TYPE_GLOBAL, offset, + buf, len); +} +static inline int snd_dice_transaction_read_global(struct snd_dice *dice, + unsigned int offset, + void *buf, unsigned int len) +{ + return snd_dice_transaction_read(dice, + SND_DICE_ADDR_TYPE_GLOBAL, offset, + buf, len); +} +static inline int snd_dice_transaction_write_tx(struct snd_dice *dice, + unsigned int offset, + void *buf, unsigned int len) +{ + return snd_dice_transaction_write(dice, SND_DICE_ADDR_TYPE_TX, offset, + buf, len); +} +static inline int snd_dice_transaction_read_tx(struct snd_dice *dice, + unsigned int offset, + void *buf, unsigned int len) +{ + return snd_dice_transaction_read(dice, SND_DICE_ADDR_TYPE_TX, offset, + buf, len); +} +static inline int snd_dice_transaction_write_rx(struct snd_dice *dice, + unsigned int offset, + void *buf, unsigned int len) +{ + return snd_dice_transaction_write(dice, SND_DICE_ADDR_TYPE_RX, offset, + buf, len); +} +static inline int snd_dice_transaction_read_rx(struct snd_dice *dice, + unsigned int offset, + void *buf, unsigned int len) +{ + return snd_dice_transaction_read(dice, SND_DICE_ADDR_TYPE_RX, offset, + buf, len); +} +static inline int snd_dice_transaction_write_sync(struct snd_dice *dice, + unsigned int offset, + void *buf, unsigned int len) +{ + return snd_dice_transaction_write(dice, SND_DICE_ADDR_TYPE_SYNC, offset, + buf, len); +} +static inline int snd_dice_transaction_read_sync(struct snd_dice *dice, + unsigned int offset, + void *buf, unsigned int len) +{ + return snd_dice_transaction_read(dice, SND_DICE_ADDR_TYPE_SYNC, offset, + buf, len); +} + +int snd_dice_transaction_set_clock_source(struct snd_dice *dice, + unsigned int source); +int snd_dice_transaction_get_clock_source(struct snd_dice *dice, + unsigned int *source); +int snd_dice_transaction_set_rate(struct snd_dice *dice, unsigned int rate); +int snd_dice_transaction_get_rate(struct snd_dice *dice, unsigned int *rate); +int snd_dice_transaction_set_enable(struct snd_dice *dice); +void snd_dice_transaction_clear_enable(struct snd_dice *dice); +int snd_dice_transaction_init(struct snd_dice *dice); +int snd_dice_transaction_reinit(struct snd_dice *dice); +void snd_dice_transaction_destroy(struct snd_dice *dice); + +#define SND_DICE_RATES_COUNT 7 +extern const unsigned int snd_dice_rates[SND_DICE_RATES_COUNT]; + +int snd_dice_stream_get_rate_mode(struct snd_dice *dice, + unsigned int rate, unsigned int *mode); + +int snd_dice_stream_start_packets(struct snd_dice *dice); +int snd_dice_stream_start(struct snd_dice *dice); +void snd_dice_stream_stop_packets(struct snd_dice *dice); +void snd_dice_stream_stop(struct snd_dice *dice); +int snd_dice_stream_init(struct snd_dice *dice); +void snd_dice_stream_destroy(struct snd_dice *dice); +void snd_dice_stream_update(struct snd_dice *dice); + +int snd_dice_stream_lock_try(struct snd_dice *dice); +void snd_dice_stream_lock_release(struct snd_dice *dice); + +int snd_dice_create_pcm(struct snd_dice *dice); + +int snd_dice_create_hwdep(struct snd_dice *dice); + +void snd_dice_create_proc(struct snd_dice *dice); + +#endif diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c index 7ac9443..48d6dca 100644 --- a/sound/firewire/isight.c +++ b/sound/firewire/isight.c @@ -131,14 +131,8 @@ static void isight_samples(struct isight *isight, static void isight_pcm_abort(struct isight *isight) { - unsigned long flags; - - if (ACCESS_ONCE(isight->pcm_active)) { - snd_pcm_stream_lock_irqsave(isight->pcm, flags); - if (snd_pcm_running(isight->pcm)) - snd_pcm_stop(isight->pcm, SNDRV_PCM_STATE_XRUN); - snd_pcm_stream_unlock_irqrestore(isight->pcm, flags); - } + if (ACCESS_ONCE(isight->pcm_active)) + snd_pcm_stop_xrun(isight->pcm); } static void isight_dropped_samples(struct isight *isight, unsigned int total) diff --git a/sound/firewire/oxfw/Makefile b/sound/firewire/oxfw/Makefile new file mode 100644 index 0000000..0cf48fd --- /dev/null +++ b/sound/firewire/oxfw/Makefile @@ -0,0 +1,2 @@ +snd-oxfw-objs := oxfw-stream.o oxfw-control.o oxfw-pcm.o oxfw.o +obj-m += snd-oxfw.o diff --git a/sound/firewire/oxfw/oxfw-control.c b/sound/firewire/oxfw/oxfw-control.c new file mode 100644 index 0000000..02a1cb9 --- /dev/null +++ b/sound/firewire/oxfw/oxfw-control.c @@ -0,0 +1,283 @@ +/* + * oxfw_stream.c - a part of driver for OXFW970/971 based devices + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "oxfw.h" + +enum control_action { CTL_READ, CTL_WRITE }; +enum control_attribute { + CTL_MIN = 0x02, + CTL_MAX = 0x03, + CTL_CURRENT = 0x10, +}; + +static int oxfw_mute_command(struct snd_oxfw *oxfw, bool *value, + enum control_action action) +{ + u8 *buf; + u8 response_ok; + int err; + + buf = kmalloc(11, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + if (action == CTL_READ) { + buf[0] = 0x01; /* AV/C, STATUS */ + response_ok = 0x0c; /* STABLE */ + } else { + buf[0] = 0x00; /* AV/C, CONTROL */ + response_ok = 0x09; /* ACCEPTED */ + } + buf[1] = 0x08; /* audio unit 0 */ + buf[2] = 0xb8; /* FUNCTION BLOCK */ + buf[3] = 0x81; /* function block type: feature */ + buf[4] = oxfw->device_info->mute_fb_id; /* function block ID */ + buf[5] = 0x10; /* control attribute: current */ + buf[6] = 0x02; /* selector length */ + buf[7] = 0x00; /* audio channel number */ + buf[8] = 0x01; /* control selector: mute */ + buf[9] = 0x01; /* control data length */ + if (action == CTL_READ) + buf[10] = 0xff; + else + buf[10] = *value ? 0x70 : 0x60; + + err = fcp_avc_transaction(oxfw->unit, buf, 11, buf, 11, 0x3fe); + if (err < 0) + goto error; + if (err < 11) { + dev_err(&oxfw->unit->device, "short FCP response\n"); + err = -EIO; + goto error; + } + if (buf[0] != response_ok) { + dev_err(&oxfw->unit->device, "mute command failed\n"); + err = -EIO; + goto error; + } + if (action == CTL_READ) + *value = buf[10] == 0x70; + + err = 0; + +error: + kfree(buf); + + return err; +} + +static int oxfw_volume_command(struct snd_oxfw *oxfw, s16 *value, + unsigned int channel, + enum control_attribute attribute, + enum control_action action) +{ + u8 *buf; + u8 response_ok; + int err; + + buf = kmalloc(12, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + if (action == CTL_READ) { + buf[0] = 0x01; /* AV/C, STATUS */ + response_ok = 0x0c; /* STABLE */ + } else { + buf[0] = 0x00; /* AV/C, CONTROL */ + response_ok = 0x09; /* ACCEPTED */ + } + buf[1] = 0x08; /* audio unit 0 */ + buf[2] = 0xb8; /* FUNCTION BLOCK */ + buf[3] = 0x81; /* function block type: feature */ + buf[4] = oxfw->device_info->volume_fb_id; /* function block ID */ + buf[5] = attribute; /* control attribute */ + buf[6] = 0x02; /* selector length */ + buf[7] = channel; /* audio channel number */ + buf[8] = 0x02; /* control selector: volume */ + buf[9] = 0x02; /* control data length */ + if (action == CTL_READ) { + buf[10] = 0xff; + buf[11] = 0xff; + } else { + buf[10] = *value >> 8; + buf[11] = *value; + } + + err = fcp_avc_transaction(oxfw->unit, buf, 12, buf, 12, 0x3fe); + if (err < 0) + goto error; + if (err < 12) { + dev_err(&oxfw->unit->device, "short FCP response\n"); + err = -EIO; + goto error; + } + if (buf[0] != response_ok) { + dev_err(&oxfw->unit->device, "volume command failed\n"); + err = -EIO; + goto error; + } + if (action == CTL_READ) + *value = (buf[10] << 8) | buf[11]; + + err = 0; + +error: + kfree(buf); + + return err; +} + +static int oxfw_mute_get(struct snd_kcontrol *control, + struct snd_ctl_elem_value *value) +{ + struct snd_oxfw *oxfw = control->private_data; + + value->value.integer.value[0] = !oxfw->mute; + + return 0; +} + +static int oxfw_mute_put(struct snd_kcontrol *control, + struct snd_ctl_elem_value *value) +{ + struct snd_oxfw *oxfw = control->private_data; + bool mute; + int err; + + mute = !value->value.integer.value[0]; + + if (mute == oxfw->mute) + return 0; + + err = oxfw_mute_command(oxfw, &mute, CTL_WRITE); + if (err < 0) + return err; + oxfw->mute = mute; + + return 1; +} + +static int oxfw_volume_info(struct snd_kcontrol *control, + struct snd_ctl_elem_info *info) +{ + struct snd_oxfw *oxfw = control->private_data; + + info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + info->count = oxfw->device_info->mixer_channels; + info->value.integer.min = oxfw->volume_min; + info->value.integer.max = oxfw->volume_max; + + return 0; +} + +static const u8 channel_map[6] = { 0, 1, 4, 5, 2, 3 }; + +static int oxfw_volume_get(struct snd_kcontrol *control, + struct snd_ctl_elem_value *value) +{ + struct snd_oxfw *oxfw = control->private_data; + unsigned int i; + + for (i = 0; i < oxfw->device_info->mixer_channels; ++i) + value->value.integer.value[channel_map[i]] = oxfw->volume[i]; + + return 0; +} + +static int oxfw_volume_put(struct snd_kcontrol *control, + struct snd_ctl_elem_value *value) +{ + struct snd_oxfw *oxfw = control->private_data; + unsigned int i, changed_channels; + bool equal_values = true; + s16 volume; + int err; + + for (i = 0; i < oxfw->device_info->mixer_channels; ++i) { + if (value->value.integer.value[i] < oxfw->volume_min || + value->value.integer.value[i] > oxfw->volume_max) + return -EINVAL; + if (value->value.integer.value[i] != + value->value.integer.value[0]) + equal_values = false; + } + + changed_channels = 0; + for (i = 0; i < oxfw->device_info->mixer_channels; ++i) + if (value->value.integer.value[channel_map[i]] != + oxfw->volume[i]) + changed_channels |= 1 << (i + 1); + + if (equal_values && changed_channels != 0) + changed_channels = 1 << 0; + + for (i = 0; i <= oxfw->device_info->mixer_channels; ++i) { + volume = value->value.integer.value[channel_map[i ? i - 1 : 0]]; + if (changed_channels & (1 << i)) { + err = oxfw_volume_command(oxfw, &volume, i, + CTL_CURRENT, CTL_WRITE); + if (err < 0) + return err; + } + if (i > 0) + oxfw->volume[i - 1] = volume; + } + + return changed_channels != 0; +} + +int snd_oxfw_create_mixer(struct snd_oxfw *oxfw) +{ + static const struct snd_kcontrol_new controls[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "PCM Playback Switch", + .info = snd_ctl_boolean_mono_info, + .get = oxfw_mute_get, + .put = oxfw_mute_put, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "PCM Playback Volume", + .info = oxfw_volume_info, + .get = oxfw_volume_get, + .put = oxfw_volume_put, + }, + }; + unsigned int i, first_ch; + int err; + + err = oxfw_volume_command(oxfw, &oxfw->volume_min, + 0, CTL_MIN, CTL_READ); + if (err < 0) + return err; + err = oxfw_volume_command(oxfw, &oxfw->volume_max, + 0, CTL_MAX, CTL_READ); + if (err < 0) + return err; + + err = oxfw_mute_command(oxfw, &oxfw->mute, CTL_READ); + if (err < 0) + return err; + + first_ch = oxfw->device_info->mixer_channels == 1 ? 0 : 1; + for (i = 0; i < oxfw->device_info->mixer_channels; ++i) { + err = oxfw_volume_command(oxfw, &oxfw->volume[i], + first_ch + i, CTL_CURRENT, CTL_READ); + if (err < 0) + return err; + } + + for (i = 0; i < ARRAY_SIZE(controls); ++i) { + err = snd_ctl_add(oxfw->card, + snd_ctl_new1(&controls[i], oxfw)); + if (err < 0) + return err; + } + + return 0; +} diff --git a/sound/firewire/oxfw/oxfw-pcm.c b/sound/firewire/oxfw/oxfw-pcm.c new file mode 100644 index 0000000..d39f17a --- /dev/null +++ b/sound/firewire/oxfw/oxfw-pcm.c @@ -0,0 +1,249 @@ +/* + * oxfw_pcm.c - a part of driver for OXFW970/971 based devices + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "oxfw.h" + +static int firewave_rate_constraint(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + static unsigned int stereo_rates[] = { 48000, 96000 }; + struct snd_interval *channels = + hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); + struct snd_interval *rate = + hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + + /* two channels work only at 48/96 kHz */ + if (snd_interval_max(channels) < 6) + return snd_interval_list(rate, 2, stereo_rates, 0); + return 0; +} + +static int firewave_channels_constraint(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + static const struct snd_interval all_channels = { .min = 6, .max = 6 }; + struct snd_interval *rate = + hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + struct snd_interval *channels = + hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); + + /* 32/44.1 kHz work only with all six channels */ + if (snd_interval_max(rate) < 48000) + return snd_interval_refine(channels, &all_channels); + return 0; +} + +int firewave_constraints(struct snd_pcm_runtime *runtime) +{ + static unsigned int channels_list[] = { 2, 6 }; + static struct snd_pcm_hw_constraint_list channels_list_constraint = { + .count = 2, + .list = channels_list, + }; + int err; + + runtime->hw.rates = SNDRV_PCM_RATE_32000 | + SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_96000; + runtime->hw.channels_max = 6; + + err = snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, + &channels_list_constraint); + if (err < 0) + return err; + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + firewave_rate_constraint, NULL, + SNDRV_PCM_HW_PARAM_CHANNELS, -1); + if (err < 0) + return err; + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + firewave_channels_constraint, NULL, + SNDRV_PCM_HW_PARAM_RATE, -1); + if (err < 0) + return err; + + return 0; +} + +int lacie_speakers_constraints(struct snd_pcm_runtime *runtime) +{ + runtime->hw.rates = SNDRV_PCM_RATE_32000 | + SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000; + + return 0; +} + +static int pcm_open(struct snd_pcm_substream *substream) +{ + static const struct snd_pcm_hardware hardware = { + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_BATCH | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER, + .formats = AMDTP_OUT_PCM_FORMAT_BITS, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 4 * 1024 * 1024, + .period_bytes_min = 1, + .period_bytes_max = UINT_MAX, + .periods_min = 1, + .periods_max = UINT_MAX, + }; + struct snd_oxfw *oxfw = substream->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; + bool used; + int err; + + err = cmp_connection_check_used(&oxfw->in_conn, &used); + if ((err < 0) || used) + goto end; + + runtime->hw = hardware; + + err = oxfw->device_info->pcm_constraints(runtime); + if (err < 0) + goto end; + err = snd_pcm_limit_hw_rates(runtime); + if (err < 0) + goto end; + + err = amdtp_stream_add_pcm_hw_constraints(&oxfw->rx_stream, runtime); +end: + return err; +} + +static int pcm_close(struct snd_pcm_substream *substream) +{ + return 0; +} + +static int pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct snd_oxfw *oxfw = substream->private_data; + int err; + + mutex_lock(&oxfw->mutex); + + snd_oxfw_stream_stop_simplex(oxfw); + + err = snd_pcm_lib_alloc_vmalloc_buffer(substream, + params_buffer_bytes(hw_params)); + if (err < 0) + goto error; + + amdtp_stream_set_parameters(&oxfw->rx_stream, + params_rate(hw_params), + params_channels(hw_params), + 0); + + amdtp_stream_set_pcm_format(&oxfw->rx_stream, + params_format(hw_params)); + + err = avc_general_set_sig_fmt(oxfw->unit, params_rate(hw_params), + AVC_GENERAL_PLUG_DIR_IN, 0); + if (err < 0) { + dev_err(&oxfw->unit->device, "failed to set sample rate\n"); + goto err_buffer; + } + + return 0; + +err_buffer: + snd_pcm_lib_free_vmalloc_buffer(substream); +error: + mutex_unlock(&oxfw->mutex); + return err; +} + +static int pcm_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_oxfw *oxfw = substream->private_data; + + mutex_lock(&oxfw->mutex); + snd_oxfw_stream_stop_simplex(oxfw); + mutex_unlock(&oxfw->mutex); + + return snd_pcm_lib_free_vmalloc_buffer(substream); +} + +static int pcm_prepare(struct snd_pcm_substream *substream) +{ + struct snd_oxfw *oxfw = substream->private_data; + int err; + + mutex_lock(&oxfw->mutex); + + snd_oxfw_stream_stop_simplex(oxfw); + + err = snd_oxfw_stream_start_simplex(oxfw); + if (err < 0) + goto end; + + amdtp_stream_pcm_prepare(&oxfw->rx_stream); +end: + mutex_unlock(&oxfw->mutex); + return err; +} + +static int pcm_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_oxfw *oxfw = substream->private_data; + struct snd_pcm_substream *pcm; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + pcm = substream; + break; + case SNDRV_PCM_TRIGGER_STOP: + pcm = NULL; + break; + default: + return -EINVAL; + } + amdtp_stream_pcm_trigger(&oxfw->rx_stream, pcm); + return 0; +} + +static snd_pcm_uframes_t pcm_pointer(struct snd_pcm_substream *substream) +{ + struct snd_oxfw *oxfw = substream->private_data; + + return amdtp_stream_pcm_pointer(&oxfw->rx_stream); +} + +int snd_oxfw_create_pcm(struct snd_oxfw *oxfw) +{ + static struct snd_pcm_ops ops = { + .open = pcm_open, + .close = pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = pcm_hw_params, + .hw_free = pcm_hw_free, + .prepare = pcm_prepare, + .trigger = pcm_trigger, + .pointer = pcm_pointer, + .page = snd_pcm_lib_get_vmalloc_page, + .mmap = snd_pcm_lib_mmap_vmalloc, + }; + struct snd_pcm *pcm; + int err; + + err = snd_pcm_new(oxfw->card, oxfw->card->driver, 0, 1, 0, &pcm); + if (err < 0) + return err; + pcm->private_data = oxfw; + strcpy(pcm->name, oxfw->card->shortname); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &ops); + return 0; +} diff --git a/sound/firewire/oxfw/oxfw-stream.c b/sound/firewire/oxfw/oxfw-stream.c new file mode 100644 index 0000000..ebd156f --- /dev/null +++ b/sound/firewire/oxfw/oxfw-stream.c @@ -0,0 +1,80 @@ +/* + * oxfw_stream.c - a part of driver for OXFW970/971 based devices + * + * Copyright (c) 2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "oxfw.h" + +int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw) +{ + int err; + + err = cmp_connection_init(&oxfw->in_conn, oxfw->unit, + CMP_INPUT, 0); + if (err < 0) + goto end; + + err = amdtp_stream_init(&oxfw->rx_stream, oxfw->unit, + AMDTP_OUT_STREAM, CIP_NONBLOCKING); + if (err < 0) { + amdtp_stream_destroy(&oxfw->rx_stream); + cmp_connection_destroy(&oxfw->in_conn); + } +end: + return err; +} + +static void stop_stream(struct snd_oxfw *oxfw) +{ + amdtp_stream_pcm_abort(&oxfw->rx_stream); + amdtp_stream_stop(&oxfw->rx_stream); + cmp_connection_break(&oxfw->in_conn); +} + +int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw) +{ + int err = 0; + + if (amdtp_streaming_error(&oxfw->rx_stream)) + stop_stream(oxfw); + + if (amdtp_stream_running(&oxfw->rx_stream)) + goto end; + + err = cmp_connection_establish(&oxfw->in_conn, + amdtp_stream_get_max_payload(&oxfw->rx_stream)); + if (err < 0) + goto end; + + err = amdtp_stream_start(&oxfw->rx_stream, + oxfw->in_conn.resources.channel, + oxfw->in_conn.speed); + if (err < 0) + stop_stream(oxfw); +end: + return err; +} + +void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw) +{ + stop_stream(oxfw); +} + +void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw) +{ + stop_stream(oxfw); + + amdtp_stream_destroy(&oxfw->rx_stream); + cmp_connection_destroy(&oxfw->in_conn); +} + +void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw) +{ + if (cmp_connection_update(&oxfw->in_conn) < 0) + stop_stream(oxfw); + else + amdtp_stream_update(&oxfw->rx_stream); +} diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c new file mode 100644 index 0000000..951d9a4 --- /dev/null +++ b/sound/firewire/oxfw/oxfw.c @@ -0,0 +1,194 @@ +/* + * oxfw.c - a part of driver for OXFW970/971 based devices + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "oxfw.h" + +#define OXFORD_FIRMWARE_ID_ADDRESS (CSR_REGISTER_BASE + 0x50000) +/* 0x970?vvvv or 0x971?vvvv, where vvvv = firmware version */ + +#define OXFORD_HARDWARE_ID_ADDRESS (CSR_REGISTER_BASE + 0x90020) +#define OXFORD_HARDWARE_ID_OXFW970 0x39443841 +#define OXFORD_HARDWARE_ID_OXFW971 0x39373100 + +#define VENDOR_GRIFFIN 0x001292 +#define VENDOR_LACIE 0x00d04b + +#define SPECIFIER_1394TA 0x00a02d +#define VERSION_AVC 0x010001 + +MODULE_DESCRIPTION("Oxford Semiconductor FW970/971 driver"); +MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("snd-firewire-speakers"); + +static u32 oxfw_read_firmware_version(struct fw_unit *unit) +{ + __be32 data; + int err; + + err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST, + OXFORD_FIRMWARE_ID_ADDRESS, &data, 4, 0); + return err >= 0 ? be32_to_cpu(data) : 0; +} + +static void oxfw_card_free(struct snd_card *card) +{ + struct snd_oxfw *oxfw = card->private_data; + + mutex_destroy(&oxfw->mutex); +} + +static int oxfw_probe(struct fw_unit *unit, + const struct ieee1394_device_id *id) +{ + struct fw_device *fw_dev = fw_parent_device(unit); + struct snd_card *card; + struct snd_oxfw *oxfw; + u32 firmware; + int err; + + err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE, + sizeof(*oxfw), &card); + if (err < 0) + return err; + + card->private_free = oxfw_card_free; + oxfw = card->private_data; + oxfw->card = card; + mutex_init(&oxfw->mutex); + oxfw->unit = unit; + oxfw->device_info = (const struct device_info *)id->driver_data; + + strcpy(card->driver, oxfw->device_info->driver_name); + strcpy(card->shortname, oxfw->device_info->short_name); + firmware = oxfw_read_firmware_version(unit); + snprintf(card->longname, sizeof(card->longname), + "%s (OXFW%x %04x), GUID %08x%08x at %s, S%d", + oxfw->device_info->long_name, + firmware >> 20, firmware & 0xffff, + fw_dev->config_rom[3], fw_dev->config_rom[4], + dev_name(&unit->device), 100 << fw_dev->max_speed); + strcpy(card->mixername, "OXFW"); + + err = snd_oxfw_create_pcm(oxfw); + if (err < 0) + goto error; + + err = snd_oxfw_create_mixer(oxfw); + if (err < 0) + goto error; + + err = snd_oxfw_stream_init_simplex(oxfw); + if (err < 0) + goto error; + + err = snd_card_register(card); + if (err < 0) { + snd_oxfw_stream_destroy_simplex(oxfw); + goto error; + } + dev_set_drvdata(&unit->device, oxfw); + + return 0; +error: + snd_card_free(card); + return err; +} + +static void oxfw_bus_reset(struct fw_unit *unit) +{ + struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device); + + fcp_bus_reset(oxfw->unit); + + mutex_lock(&oxfw->mutex); + snd_oxfw_stream_update_simplex(oxfw); + mutex_unlock(&oxfw->mutex); +} + +static void oxfw_remove(struct fw_unit *unit) +{ + struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device); + + snd_card_disconnect(oxfw->card); + + snd_oxfw_stream_destroy_simplex(oxfw); + + snd_card_free_when_closed(oxfw->card); +} + +static const struct device_info griffin_firewave = { + .driver_name = "FireWave", + .short_name = "FireWave", + .long_name = "Griffin FireWave Surround", + .pcm_constraints = firewave_constraints, + .mixer_channels = 6, + .mute_fb_id = 0x01, + .volume_fb_id = 0x02, +}; + +static const struct device_info lacie_speakers = { + .driver_name = "FWSpeakers", + .short_name = "FireWire Speakers", + .long_name = "LaCie FireWire Speakers", + .pcm_constraints = lacie_speakers_constraints, + .mixer_channels = 1, + .mute_fb_id = 0x01, + .volume_fb_id = 0x01, +}; + +static const struct ieee1394_device_id oxfw_id_table[] = { + { + .match_flags = IEEE1394_MATCH_VENDOR_ID | + IEEE1394_MATCH_MODEL_ID | + IEEE1394_MATCH_SPECIFIER_ID | + IEEE1394_MATCH_VERSION, + .vendor_id = VENDOR_GRIFFIN, + .model_id = 0x00f970, + .specifier_id = SPECIFIER_1394TA, + .version = VERSION_AVC, + .driver_data = (kernel_ulong_t)&griffin_firewave, + }, + { + .match_flags = IEEE1394_MATCH_VENDOR_ID | + IEEE1394_MATCH_MODEL_ID | + IEEE1394_MATCH_SPECIFIER_ID | + IEEE1394_MATCH_VERSION, + .vendor_id = VENDOR_LACIE, + .model_id = 0x00f970, + .specifier_id = SPECIFIER_1394TA, + .version = VERSION_AVC, + .driver_data = (kernel_ulong_t)&lacie_speakers, + }, + { } +}; +MODULE_DEVICE_TABLE(ieee1394, oxfw_id_table); + +static struct fw_driver oxfw_driver = { + .driver = { + .owner = THIS_MODULE, + .name = KBUILD_MODNAME, + .bus = &fw_bus_type, + }, + .probe = oxfw_probe, + .update = oxfw_bus_reset, + .remove = oxfw_remove, + .id_table = oxfw_id_table, +}; + +static int __init snd_oxfw_init(void) +{ + return driver_register(&oxfw_driver.driver); +} + +static void __exit snd_oxfw_exit(void) +{ + driver_unregister(&oxfw_driver.driver); +} + +module_init(snd_oxfw_init); +module_exit(snd_oxfw_exit); diff --git a/sound/firewire/oxfw/oxfw.h b/sound/firewire/oxfw/oxfw.h new file mode 100644 index 0000000..6164bf3 --- /dev/null +++ b/sound/firewire/oxfw/oxfw.h @@ -0,0 +1,62 @@ +/* + * oxfw.h - a part of driver for OXFW970/971 based devices + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include <linux/device.h> +#include <linux/firewire.h> +#include <linux/firewire-constants.h> +#include <linux/module.h> +#include <linux/mod_devicetable.h> +#include <linux/mutex.h> +#include <linux/slab.h> + +#include <sound/control.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> + +#include "../lib.h" +#include "../fcp.h" +#include "../packets-buffer.h" +#include "../iso-resources.h" +#include "../amdtp.h" +#include "../cmp.h" + +struct device_info { + const char *driver_name; + const char *short_name; + const char *long_name; + int (*pcm_constraints)(struct snd_pcm_runtime *runtime); + unsigned int mixer_channels; + u8 mute_fb_id; + u8 volume_fb_id; +}; + +struct snd_oxfw { + struct snd_card *card; + struct fw_unit *unit; + const struct device_info *device_info; + struct mutex mutex; + struct cmp_connection in_conn; + struct amdtp_stream rx_stream; + bool mute; + s16 volume[6]; + s16 volume_min; + s16 volume_max; +}; + +int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw); +int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw); +void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw); +void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw); +void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw); + +int firewave_constraints(struct snd_pcm_runtime *runtime); +int lacie_speakers_constraints(struct snd_pcm_runtime *runtime); +int snd_oxfw_create_pcm(struct snd_oxfw *oxfw); + +int snd_oxfw_create_mixer(struct snd_oxfw *oxfw); diff --git a/sound/firewire/speakers.c b/sound/firewire/speakers.c deleted file mode 100644 index 768d40d..0000000 --- a/sound/firewire/speakers.c +++ /dev/null @@ -1,792 +0,0 @@ -/* - * OXFW970-based speakers driver - * - * Copyright (c) Clemens Ladisch <clemens@ladisch.de> - * Licensed under the terms of the GNU General Public License, version 2. - */ - -#include <linux/device.h> -#include <linux/firewire.h> -#include <linux/firewire-constants.h> -#include <linux/module.h> -#include <linux/mod_devicetable.h> -#include <linux/mutex.h> -#include <linux/slab.h> -#include <sound/control.h> -#include <sound/core.h> -#include <sound/initval.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include "cmp.h" -#include "fcp.h" -#include "amdtp.h" -#include "lib.h" - -#define OXFORD_FIRMWARE_ID_ADDRESS (CSR_REGISTER_BASE + 0x50000) -/* 0x970?vvvv or 0x971?vvvv, where vvvv = firmware version */ - -#define OXFORD_HARDWARE_ID_ADDRESS (CSR_REGISTER_BASE + 0x90020) -#define OXFORD_HARDWARE_ID_OXFW970 0x39443841 -#define OXFORD_HARDWARE_ID_OXFW971 0x39373100 - -#define VENDOR_GRIFFIN 0x001292 -#define VENDOR_LACIE 0x00d04b - -#define SPECIFIER_1394TA 0x00a02d -#define VERSION_AVC 0x010001 - -struct device_info { - const char *driver_name; - const char *short_name; - const char *long_name; - int (*pcm_constraints)(struct snd_pcm_runtime *runtime); - unsigned int mixer_channels; - u8 mute_fb_id; - u8 volume_fb_id; -}; - -struct fwspk { - struct snd_card *card; - struct fw_unit *unit; - const struct device_info *device_info; - struct mutex mutex; - struct cmp_connection connection; - struct amdtp_stream stream; - bool mute; - s16 volume[6]; - s16 volume_min; - s16 volume_max; -}; - -MODULE_DESCRIPTION("FireWire speakers driver"); -MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); -MODULE_LICENSE("GPL v2"); - -static int firewave_rate_constraint(struct snd_pcm_hw_params *params, - struct snd_pcm_hw_rule *rule) -{ - static unsigned int stereo_rates[] = { 48000, 96000 }; - struct snd_interval *channels = - hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); - struct snd_interval *rate = - hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); - - /* two channels work only at 48/96 kHz */ - if (snd_interval_max(channels) < 6) - return snd_interval_list(rate, 2, stereo_rates, 0); - return 0; -} - -static int firewave_channels_constraint(struct snd_pcm_hw_params *params, - struct snd_pcm_hw_rule *rule) -{ - static const struct snd_interval all_channels = { .min = 6, .max = 6 }; - struct snd_interval *rate = - hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); - struct snd_interval *channels = - hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); - - /* 32/44.1 kHz work only with all six channels */ - if (snd_interval_max(rate) < 48000) - return snd_interval_refine(channels, &all_channels); - return 0; -} - -static int firewave_constraints(struct snd_pcm_runtime *runtime) -{ - static unsigned int channels_list[] = { 2, 6 }; - static struct snd_pcm_hw_constraint_list channels_list_constraint = { - .count = 2, - .list = channels_list, - }; - int err; - - runtime->hw.rates = SNDRV_PCM_RATE_32000 | - SNDRV_PCM_RATE_44100 | - SNDRV_PCM_RATE_48000 | - SNDRV_PCM_RATE_96000; - runtime->hw.channels_max = 6; - - err = snd_pcm_hw_constraint_list(runtime, 0, - SNDRV_PCM_HW_PARAM_CHANNELS, - &channels_list_constraint); - if (err < 0) - return err; - err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, - firewave_rate_constraint, NULL, - SNDRV_PCM_HW_PARAM_CHANNELS, -1); - if (err < 0) - return err; - err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, - firewave_channels_constraint, NULL, - SNDRV_PCM_HW_PARAM_RATE, -1); - if (err < 0) - return err; - - return 0; -} - -static int lacie_speakers_constraints(struct snd_pcm_runtime *runtime) -{ - runtime->hw.rates = SNDRV_PCM_RATE_32000 | - SNDRV_PCM_RATE_44100 | - SNDRV_PCM_RATE_48000 | - SNDRV_PCM_RATE_88200 | - SNDRV_PCM_RATE_96000; - - return 0; -} - -static int fwspk_open(struct snd_pcm_substream *substream) -{ - static const struct snd_pcm_hardware hardware = { - .info = SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_MMAP_VALID | - SNDRV_PCM_INFO_BATCH | - SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_BLOCK_TRANSFER, - .formats = AMDTP_OUT_PCM_FORMAT_BITS, - .channels_min = 2, - .channels_max = 2, - .buffer_bytes_max = 4 * 1024 * 1024, - .period_bytes_min = 1, - .period_bytes_max = UINT_MAX, - .periods_min = 1, - .periods_max = UINT_MAX, - }; - struct fwspk *fwspk = substream->private_data; - struct snd_pcm_runtime *runtime = substream->runtime; - int err; - - runtime->hw = hardware; - - err = fwspk->device_info->pcm_constraints(runtime); - if (err < 0) - return err; - err = snd_pcm_limit_hw_rates(runtime); - if (err < 0) - return err; - - err = amdtp_stream_add_pcm_hw_constraints(&fwspk->stream, runtime); - if (err < 0) - return err; - - return 0; -} - -static int fwspk_close(struct snd_pcm_substream *substream) -{ - return 0; -} - -static void fwspk_stop_stream(struct fwspk *fwspk) -{ - if (amdtp_stream_running(&fwspk->stream)) { - amdtp_stream_stop(&fwspk->stream); - cmp_connection_break(&fwspk->connection); - } -} - -static int fwspk_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params) -{ - struct fwspk *fwspk = substream->private_data; - int err; - - mutex_lock(&fwspk->mutex); - fwspk_stop_stream(fwspk); - mutex_unlock(&fwspk->mutex); - - err = snd_pcm_lib_alloc_vmalloc_buffer(substream, - params_buffer_bytes(hw_params)); - if (err < 0) - goto error; - - amdtp_stream_set_parameters(&fwspk->stream, - params_rate(hw_params), - params_channels(hw_params), - 0); - - amdtp_stream_set_pcm_format(&fwspk->stream, - params_format(hw_params)); - - err = avc_general_set_sig_fmt(fwspk->unit, params_rate(hw_params), - AVC_GENERAL_PLUG_DIR_IN, 0); - if (err < 0) { - dev_err(&fwspk->unit->device, "failed to set sample rate\n"); - goto err_buffer; - } - - return 0; - -err_buffer: - snd_pcm_lib_free_vmalloc_buffer(substream); -error: - return err; -} - -static int fwspk_hw_free(struct snd_pcm_substream *substream) -{ - struct fwspk *fwspk = substream->private_data; - - mutex_lock(&fwspk->mutex); - fwspk_stop_stream(fwspk); - mutex_unlock(&fwspk->mutex); - - return snd_pcm_lib_free_vmalloc_buffer(substream); -} - -static int fwspk_prepare(struct snd_pcm_substream *substream) -{ - struct fwspk *fwspk = substream->private_data; - int err; - - mutex_lock(&fwspk->mutex); - - if (amdtp_streaming_error(&fwspk->stream)) - fwspk_stop_stream(fwspk); - - if (!amdtp_stream_running(&fwspk->stream)) { - err = cmp_connection_establish(&fwspk->connection, - amdtp_stream_get_max_payload(&fwspk->stream)); - if (err < 0) - goto err_mutex; - - err = amdtp_stream_start(&fwspk->stream, - fwspk->connection.resources.channel, - fwspk->connection.speed); - if (err < 0) - goto err_connection; - } - - mutex_unlock(&fwspk->mutex); - - amdtp_stream_pcm_prepare(&fwspk->stream); - - return 0; - -err_connection: - cmp_connection_break(&fwspk->connection); -err_mutex: - mutex_unlock(&fwspk->mutex); - - return err; -} - -static int fwspk_trigger(struct snd_pcm_substream *substream, int cmd) -{ - struct fwspk *fwspk = substream->private_data; - struct snd_pcm_substream *pcm; - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - pcm = substream; - break; - case SNDRV_PCM_TRIGGER_STOP: - pcm = NULL; - break; - default: - return -EINVAL; - } - amdtp_stream_pcm_trigger(&fwspk->stream, pcm); - return 0; -} - -static snd_pcm_uframes_t fwspk_pointer(struct snd_pcm_substream *substream) -{ - struct fwspk *fwspk = substream->private_data; - - return amdtp_stream_pcm_pointer(&fwspk->stream); -} - -static int fwspk_create_pcm(struct fwspk *fwspk) -{ - static struct snd_pcm_ops ops = { - .open = fwspk_open, - .close = fwspk_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = fwspk_hw_params, - .hw_free = fwspk_hw_free, - .prepare = fwspk_prepare, - .trigger = fwspk_trigger, - .pointer = fwspk_pointer, - .page = snd_pcm_lib_get_vmalloc_page, - .mmap = snd_pcm_lib_mmap_vmalloc, - }; - struct snd_pcm *pcm; - int err; - - err = snd_pcm_new(fwspk->card, "OXFW970", 0, 1, 0, &pcm); - if (err < 0) - return err; - pcm->private_data = fwspk; - strcpy(pcm->name, fwspk->device_info->short_name); - snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &ops); - return 0; -} - -enum control_action { CTL_READ, CTL_WRITE }; -enum control_attribute { - CTL_MIN = 0x02, - CTL_MAX = 0x03, - CTL_CURRENT = 0x10, -}; - -static int fwspk_mute_command(struct fwspk *fwspk, bool *value, - enum control_action action) -{ - u8 *buf; - u8 response_ok; - int err; - - buf = kmalloc(11, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - if (action == CTL_READ) { - buf[0] = 0x01; /* AV/C, STATUS */ - response_ok = 0x0c; /* STABLE */ - } else { - buf[0] = 0x00; /* AV/C, CONTROL */ - response_ok = 0x09; /* ACCEPTED */ - } - buf[1] = 0x08; /* audio unit 0 */ - buf[2] = 0xb8; /* FUNCTION BLOCK */ - buf[3] = 0x81; /* function block type: feature */ - buf[4] = fwspk->device_info->mute_fb_id; /* function block ID */ - buf[5] = 0x10; /* control attribute: current */ - buf[6] = 0x02; /* selector length */ - buf[7] = 0x00; /* audio channel number */ - buf[8] = 0x01; /* control selector: mute */ - buf[9] = 0x01; /* control data length */ - if (action == CTL_READ) - buf[10] = 0xff; - else - buf[10] = *value ? 0x70 : 0x60; - - err = fcp_avc_transaction(fwspk->unit, buf, 11, buf, 11, 0x3fe); - if (err < 0) - goto error; - if (err < 11) { - dev_err(&fwspk->unit->device, "short FCP response\n"); - err = -EIO; - goto error; - } - if (buf[0] != response_ok) { - dev_err(&fwspk->unit->device, "mute command failed\n"); - err = -EIO; - goto error; - } - if (action == CTL_READ) - *value = buf[10] == 0x70; - - err = 0; - -error: - kfree(buf); - - return err; -} - -static int fwspk_volume_command(struct fwspk *fwspk, s16 *value, - unsigned int channel, - enum control_attribute attribute, - enum control_action action) -{ - u8 *buf; - u8 response_ok; - int err; - - buf = kmalloc(12, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - if (action == CTL_READ) { - buf[0] = 0x01; /* AV/C, STATUS */ - response_ok = 0x0c; /* STABLE */ - } else { - buf[0] = 0x00; /* AV/C, CONTROL */ - response_ok = 0x09; /* ACCEPTED */ - } - buf[1] = 0x08; /* audio unit 0 */ - buf[2] = 0xb8; /* FUNCTION BLOCK */ - buf[3] = 0x81; /* function block type: feature */ - buf[4] = fwspk->device_info->volume_fb_id; /* function block ID */ - buf[5] = attribute; /* control attribute */ - buf[6] = 0x02; /* selector length */ - buf[7] = channel; /* audio channel number */ - buf[8] = 0x02; /* control selector: volume */ - buf[9] = 0x02; /* control data length */ - if (action == CTL_READ) { - buf[10] = 0xff; - buf[11] = 0xff; - } else { - buf[10] = *value >> 8; - buf[11] = *value; - } - - err = fcp_avc_transaction(fwspk->unit, buf, 12, buf, 12, 0x3fe); - if (err < 0) - goto error; - if (err < 12) { - dev_err(&fwspk->unit->device, "short FCP response\n"); - err = -EIO; - goto error; - } - if (buf[0] != response_ok) { - dev_err(&fwspk->unit->device, "volume command failed\n"); - err = -EIO; - goto error; - } - if (action == CTL_READ) - *value = (buf[10] << 8) | buf[11]; - - err = 0; - -error: - kfree(buf); - - return err; -} - -static int fwspk_mute_get(struct snd_kcontrol *control, - struct snd_ctl_elem_value *value) -{ - struct fwspk *fwspk = control->private_data; - - value->value.integer.value[0] = !fwspk->mute; - - return 0; -} - -static int fwspk_mute_put(struct snd_kcontrol *control, - struct snd_ctl_elem_value *value) -{ - struct fwspk *fwspk = control->private_data; - bool mute; - int err; - - mute = !value->value.integer.value[0]; - - if (mute == fwspk->mute) - return 0; - - err = fwspk_mute_command(fwspk, &mute, CTL_WRITE); - if (err < 0) - return err; - fwspk->mute = mute; - - return 1; -} - -static int fwspk_volume_info(struct snd_kcontrol *control, - struct snd_ctl_elem_info *info) -{ - struct fwspk *fwspk = control->private_data; - - info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - info->count = fwspk->device_info->mixer_channels; - info->value.integer.min = fwspk->volume_min; - info->value.integer.max = fwspk->volume_max; - - return 0; -} - -static const u8 channel_map[6] = { 0, 1, 4, 5, 2, 3 }; - -static int fwspk_volume_get(struct snd_kcontrol *control, - struct snd_ctl_elem_value *value) -{ - struct fwspk *fwspk = control->private_data; - unsigned int i; - - for (i = 0; i < fwspk->device_info->mixer_channels; ++i) - value->value.integer.value[channel_map[i]] = fwspk->volume[i]; - - return 0; -} - -static int fwspk_volume_put(struct snd_kcontrol *control, - struct snd_ctl_elem_value *value) -{ - struct fwspk *fwspk = control->private_data; - unsigned int i, changed_channels; - bool equal_values = true; - s16 volume; - int err; - - for (i = 0; i < fwspk->device_info->mixer_channels; ++i) { - if (value->value.integer.value[i] < fwspk->volume_min || - value->value.integer.value[i] > fwspk->volume_max) - return -EINVAL; - if (value->value.integer.value[i] != - value->value.integer.value[0]) - equal_values = false; - } - - changed_channels = 0; - for (i = 0; i < fwspk->device_info->mixer_channels; ++i) - if (value->value.integer.value[channel_map[i]] != - fwspk->volume[i]) - changed_channels |= 1 << (i + 1); - - if (equal_values && changed_channels != 0) - changed_channels = 1 << 0; - - for (i = 0; i <= fwspk->device_info->mixer_channels; ++i) { - volume = value->value.integer.value[channel_map[i ? i - 1 : 0]]; - if (changed_channels & (1 << i)) { - err = fwspk_volume_command(fwspk, &volume, i, - CTL_CURRENT, CTL_WRITE); - if (err < 0) - return err; - } - if (i > 0) - fwspk->volume[i - 1] = volume; - } - - return changed_channels != 0; -} - -static int fwspk_create_mixer(struct fwspk *fwspk) -{ - static const struct snd_kcontrol_new controls[] = { - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "PCM Playback Switch", - .info = snd_ctl_boolean_mono_info, - .get = fwspk_mute_get, - .put = fwspk_mute_put, - }, - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "PCM Playback Volume", - .info = fwspk_volume_info, - .get = fwspk_volume_get, - .put = fwspk_volume_put, - }, - }; - unsigned int i, first_ch; - int err; - - err = fwspk_volume_command(fwspk, &fwspk->volume_min, - 0, CTL_MIN, CTL_READ); - if (err < 0) - return err; - err = fwspk_volume_command(fwspk, &fwspk->volume_max, - 0, CTL_MAX, CTL_READ); - if (err < 0) - return err; - - err = fwspk_mute_command(fwspk, &fwspk->mute, CTL_READ); - if (err < 0) - return err; - - first_ch = fwspk->device_info->mixer_channels == 1 ? 0 : 1; - for (i = 0; i < fwspk->device_info->mixer_channels; ++i) { - err = fwspk_volume_command(fwspk, &fwspk->volume[i], - first_ch + i, CTL_CURRENT, CTL_READ); - if (err < 0) - return err; - } - - for (i = 0; i < ARRAY_SIZE(controls); ++i) { - err = snd_ctl_add(fwspk->card, - snd_ctl_new1(&controls[i], fwspk)); - if (err < 0) - return err; - } - - return 0; -} - -static u32 fwspk_read_firmware_version(struct fw_unit *unit) -{ - __be32 data; - int err; - - err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST, - OXFORD_FIRMWARE_ID_ADDRESS, &data, 4, 0); - return err >= 0 ? be32_to_cpu(data) : 0; -} - -static void fwspk_card_free(struct snd_card *card) -{ - struct fwspk *fwspk = card->private_data; - - amdtp_stream_destroy(&fwspk->stream); - cmp_connection_destroy(&fwspk->connection); - fw_unit_put(fwspk->unit); - mutex_destroy(&fwspk->mutex); -} - -static int fwspk_probe(struct fw_unit *unit, - const struct ieee1394_device_id *id) -{ - struct fw_device *fw_dev = fw_parent_device(unit); - struct snd_card *card; - struct fwspk *fwspk; - u32 firmware; - int err; - - err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE, - sizeof(*fwspk), &card); - if (err < 0) - return err; - - fwspk = card->private_data; - fwspk->card = card; - mutex_init(&fwspk->mutex); - fwspk->unit = fw_unit_get(unit); - fwspk->device_info = (const struct device_info *)id->driver_data; - - err = cmp_connection_init(&fwspk->connection, unit, CMP_INPUT, 0); - if (err < 0) - goto err_unit; - - err = amdtp_stream_init(&fwspk->stream, unit, AMDTP_OUT_STREAM, - CIP_NONBLOCKING); - if (err < 0) - goto err_connection; - - card->private_free = fwspk_card_free; - - strcpy(card->driver, fwspk->device_info->driver_name); - strcpy(card->shortname, fwspk->device_info->short_name); - firmware = fwspk_read_firmware_version(unit); - snprintf(card->longname, sizeof(card->longname), - "%s (OXFW%x %04x), GUID %08x%08x at %s, S%d", - fwspk->device_info->long_name, - firmware >> 20, firmware & 0xffff, - fw_dev->config_rom[3], fw_dev->config_rom[4], - dev_name(&unit->device), 100 << fw_dev->max_speed); - strcpy(card->mixername, "OXFW970"); - - err = fwspk_create_pcm(fwspk); - if (err < 0) - goto error; - - err = fwspk_create_mixer(fwspk); - if (err < 0) - goto error; - - err = snd_card_register(card); - if (err < 0) - goto error; - - dev_set_drvdata(&unit->device, fwspk); - - return 0; - -err_connection: - cmp_connection_destroy(&fwspk->connection); -err_unit: - fw_unit_put(fwspk->unit); - mutex_destroy(&fwspk->mutex); -error: - snd_card_free(card); - return err; -} - -static void fwspk_bus_reset(struct fw_unit *unit) -{ - struct fwspk *fwspk = dev_get_drvdata(&unit->device); - - fcp_bus_reset(fwspk->unit); - - if (cmp_connection_update(&fwspk->connection) < 0) { - amdtp_stream_pcm_abort(&fwspk->stream); - mutex_lock(&fwspk->mutex); - fwspk_stop_stream(fwspk); - mutex_unlock(&fwspk->mutex); - return; - } - - amdtp_stream_update(&fwspk->stream); -} - -static void fwspk_remove(struct fw_unit *unit) -{ - struct fwspk *fwspk = dev_get_drvdata(&unit->device); - - amdtp_stream_pcm_abort(&fwspk->stream); - snd_card_disconnect(fwspk->card); - - mutex_lock(&fwspk->mutex); - fwspk_stop_stream(fwspk); - mutex_unlock(&fwspk->mutex); - - snd_card_free_when_closed(fwspk->card); -} - -static const struct device_info griffin_firewave = { - .driver_name = "FireWave", - .short_name = "FireWave", - .long_name = "Griffin FireWave Surround", - .pcm_constraints = firewave_constraints, - .mixer_channels = 6, - .mute_fb_id = 0x01, - .volume_fb_id = 0x02, -}; - -static const struct device_info lacie_speakers = { - .driver_name = "FWSpeakers", - .short_name = "FireWire Speakers", - .long_name = "LaCie FireWire Speakers", - .pcm_constraints = lacie_speakers_constraints, - .mixer_channels = 1, - .mute_fb_id = 0x01, - .volume_fb_id = 0x01, -}; - -static const struct ieee1394_device_id fwspk_id_table[] = { - { - .match_flags = IEEE1394_MATCH_VENDOR_ID | - IEEE1394_MATCH_MODEL_ID | - IEEE1394_MATCH_SPECIFIER_ID | - IEEE1394_MATCH_VERSION, - .vendor_id = VENDOR_GRIFFIN, - .model_id = 0x00f970, - .specifier_id = SPECIFIER_1394TA, - .version = VERSION_AVC, - .driver_data = (kernel_ulong_t)&griffin_firewave, - }, - { - .match_flags = IEEE1394_MATCH_VENDOR_ID | - IEEE1394_MATCH_MODEL_ID | - IEEE1394_MATCH_SPECIFIER_ID | - IEEE1394_MATCH_VERSION, - .vendor_id = VENDOR_LACIE, - .model_id = 0x00f970, - .specifier_id = SPECIFIER_1394TA, - .version = VERSION_AVC, - .driver_data = (kernel_ulong_t)&lacie_speakers, - }, - { } -}; -MODULE_DEVICE_TABLE(ieee1394, fwspk_id_table); - -static struct fw_driver fwspk_driver = { - .driver = { - .owner = THIS_MODULE, - .name = KBUILD_MODNAME, - .bus = &fw_bus_type, - }, - .probe = fwspk_probe, - .update = fwspk_bus_reset, - .remove = fwspk_remove, - .id_table = fwspk_id_table, -}; - -static int __init alsa_fwspk_init(void) -{ - return driver_register(&fwspk_driver.driver); -} - -static void __exit alsa_fwspk_exit(void) -{ - driver_unregister(&fwspk_driver.driver); -} - -module_init(alsa_fwspk_init); -module_exit(alsa_fwspk_exit); |