diff options
Diffstat (limited to 'drivers/staging/dream/qdsp5/audio_in.c')
-rw-r--r-- | drivers/staging/dream/qdsp5/audio_in.c | 967 |
1 files changed, 967 insertions, 0 deletions
diff --git a/drivers/staging/dream/qdsp5/audio_in.c b/drivers/staging/dream/qdsp5/audio_in.c new file mode 100644 index 0000000..3d950a2 --- /dev/null +++ b/drivers/staging/dream/qdsp5/audio_in.c @@ -0,0 +1,967 @@ +/* arch/arm/mach-msm/qdsp5/audio_in.c + * + * pcm audio input device + * + * Copyright (C) 2008 Google, Inc. + * Copyright (C) 2008 HTC Corporation + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/module.h> +#include <linux/fs.h> +#include <linux/miscdevice.h> +#include <linux/uaccess.h> +#include <linux/kthread.h> +#include <linux/wait.h> +#include <linux/dma-mapping.h> + +#include <linux/delay.h> + +#include <linux/msm_audio.h> + +#include <asm/atomic.h> +#include <asm/ioctls.h> +#include <mach/msm_adsp.h> +#include <mach/msm_rpcrouter.h> + +#include "audmgr.h" + +#include <mach/qdsp5/qdsp5audpreproccmdi.h> +#include <mach/qdsp5/qdsp5audpreprocmsg.h> +#include <mach/qdsp5/qdsp5audreccmdi.h> +#include <mach/qdsp5/qdsp5audrecmsg.h> + +/* for queue ids - should be relative to module number*/ +#include "adsp.h" + +/* FRAME_NUM must be a power of two */ +#define FRAME_NUM (8) +#define FRAME_SIZE (2052 * 2) +#define MONO_DATA_SIZE (2048) +#define STEREO_DATA_SIZE (MONO_DATA_SIZE * 2) +#define DMASZ (FRAME_SIZE * FRAME_NUM) + +#define AGC_PARAM_SIZE (20) +#define NS_PARAM_SIZE (6) +#define IIR_PARAM_SIZE (48) +#define DEBUG (0) + +#define AGC_ENABLE 0x0001 +#define NS_ENABLE 0x0002 +#define IIR_ENABLE 0x0004 + +struct tx_agc_config { + uint16_t agc_params[AGC_PARAM_SIZE]; +}; + +struct ns_config { + uint16_t ns_params[NS_PARAM_SIZE]; +}; + +struct tx_iir_filter { + uint16_t num_bands; + uint16_t iir_params[IIR_PARAM_SIZE]; +}; + +struct audpre_cmd_iir_config_type { + uint16_t cmd_id; + uint16_t active_flag; + uint16_t num_bands; + uint16_t iir_params[IIR_PARAM_SIZE]; +}; + +struct buffer { + void *data; + uint32_t size; + uint32_t read; + uint32_t addr; +}; + +struct audio_in { + struct buffer in[FRAME_NUM]; + + spinlock_t dsp_lock; + + atomic_t in_bytes; + + struct mutex lock; + struct mutex read_lock; + wait_queue_head_t wait; + + struct msm_adsp_module *audpre; + struct msm_adsp_module *audrec; + + /* configuration to use on next enable */ + uint32_t samp_rate; + uint32_t channel_mode; + uint32_t buffer_size; /* 2048 for mono, 4096 for stereo */ + uint32_t type; /* 0 for PCM ,1 for AAC */ + uint32_t dsp_cnt; + uint32_t in_head; /* next buffer dsp will write */ + uint32_t in_tail; /* next buffer read() will read */ + uint32_t in_count; /* number of buffers available to read() */ + + unsigned short samp_rate_index; + + struct audmgr audmgr; + + /* data allocated for various buffers */ + char *data; + dma_addr_t phys; + + int opened; + int enabled; + int running; + int stopped; /* set when stopped, cleared on flush */ + + /* audpre settings */ + int agc_enable; + struct tx_agc_config agc; + + int ns_enable; + struct ns_config ns; + + int iir_enable; + struct tx_iir_filter iir; +}; + +static int audio_in_dsp_enable(struct audio_in *audio, int enable); +static int audio_in_encoder_config(struct audio_in *audio); +static int audio_dsp_read_buffer(struct audio_in *audio, uint32_t read_cnt); +static void audio_flush(struct audio_in *audio); +static int audio_dsp_set_agc(struct audio_in *audio); +static int audio_dsp_set_ns(struct audio_in *audio); +static int audio_dsp_set_tx_iir(struct audio_in *audio); + +static unsigned convert_dsp_samp_index(unsigned index) +{ + switch (index) { + case 48000: return AUDREC_CMD_SAMP_RATE_INDX_48000; + case 44100: return AUDREC_CMD_SAMP_RATE_INDX_44100; + case 32000: return AUDREC_CMD_SAMP_RATE_INDX_32000; + case 24000: return AUDREC_CMD_SAMP_RATE_INDX_24000; + case 22050: return AUDREC_CMD_SAMP_RATE_INDX_22050; + case 16000: return AUDREC_CMD_SAMP_RATE_INDX_16000; + case 12000: return AUDREC_CMD_SAMP_RATE_INDX_12000; + case 11025: return AUDREC_CMD_SAMP_RATE_INDX_11025; + case 8000: return AUDREC_CMD_SAMP_RATE_INDX_8000; + default: return AUDREC_CMD_SAMP_RATE_INDX_11025; + } +} + +static unsigned convert_samp_rate(unsigned hz) +{ + switch (hz) { + case 48000: return RPC_AUD_DEF_SAMPLE_RATE_48000; + case 44100: return RPC_AUD_DEF_SAMPLE_RATE_44100; + case 32000: return RPC_AUD_DEF_SAMPLE_RATE_32000; + case 24000: return RPC_AUD_DEF_SAMPLE_RATE_24000; + case 22050: return RPC_AUD_DEF_SAMPLE_RATE_22050; + case 16000: return RPC_AUD_DEF_SAMPLE_RATE_16000; + case 12000: return RPC_AUD_DEF_SAMPLE_RATE_12000; + case 11025: return RPC_AUD_DEF_SAMPLE_RATE_11025; + case 8000: return RPC_AUD_DEF_SAMPLE_RATE_8000; + default: return RPC_AUD_DEF_SAMPLE_RATE_11025; + } +} + +static unsigned convert_samp_index(unsigned index) +{ + switch (index) { + case RPC_AUD_DEF_SAMPLE_RATE_48000: return 48000; + case RPC_AUD_DEF_SAMPLE_RATE_44100: return 44100; + case RPC_AUD_DEF_SAMPLE_RATE_32000: return 32000; + case RPC_AUD_DEF_SAMPLE_RATE_24000: return 24000; + case RPC_AUD_DEF_SAMPLE_RATE_22050: return 22050; + case RPC_AUD_DEF_SAMPLE_RATE_16000: return 16000; + case RPC_AUD_DEF_SAMPLE_RATE_12000: return 12000; + case RPC_AUD_DEF_SAMPLE_RATE_11025: return 11025; + case RPC_AUD_DEF_SAMPLE_RATE_8000: return 8000; + default: return 11025; + } +} + +/* must be called with audio->lock held */ +static int audio_in_enable(struct audio_in *audio) +{ + struct audmgr_config cfg; + int rc; + + if (audio->enabled) + return 0; + + cfg.tx_rate = audio->samp_rate; + cfg.rx_rate = RPC_AUD_DEF_SAMPLE_RATE_NONE; + cfg.def_method = RPC_AUD_DEF_METHOD_RECORD; + if (audio->type == AUDREC_CMD_TYPE_0_INDEX_WAV) + cfg.codec = RPC_AUD_DEF_CODEC_PCM; + else + cfg.codec = RPC_AUD_DEF_CODEC_AAC; + cfg.snd_method = RPC_SND_METHOD_MIDI; + + rc = audmgr_enable(&audio->audmgr, &cfg); + if (rc < 0) + return rc; + + if (msm_adsp_enable(audio->audpre)) { + pr_err("audrec: msm_adsp_enable(audpre) failed\n"); + return -ENODEV; + } + if (msm_adsp_enable(audio->audrec)) { + pr_err("audrec: msm_adsp_enable(audrec) failed\n"); + return -ENODEV; + } + + audio->enabled = 1; + audio_in_dsp_enable(audio, 1); + + return 0; +} + +/* must be called with audio->lock held */ +static int audio_in_disable(struct audio_in *audio) +{ + if (audio->enabled) { + audio->enabled = 0; + + audio_in_dsp_enable(audio, 0); + + wake_up(&audio->wait); + + msm_adsp_disable(audio->audrec); + msm_adsp_disable(audio->audpre); + audmgr_disable(&audio->audmgr); + } + return 0; +} + +/* ------------------- dsp --------------------- */ +static void audpre_dsp_event(void *data, unsigned id, size_t len, + void (*getevent)(void *ptr, size_t len)) +{ + uint16_t msg[2]; + getevent(msg, sizeof(msg)); + + switch (id) { + case AUDPREPROC_MSG_CMD_CFG_DONE_MSG: + pr_info("audpre: type %d, status_flag %d\n", msg[0], msg[1]); + break; + case AUDPREPROC_MSG_ERROR_MSG_ID: + pr_info("audpre: err_index %d\n", msg[0]); + break; + default: + pr_err("audpre: unknown event %d\n", id); + } +} + +struct audio_frame { + uint16_t count_low; + uint16_t count_high; + uint16_t bytes; + uint16_t unknown; + unsigned char samples[]; +} __attribute__((packed)); + +static void audio_in_get_dsp_frames(struct audio_in *audio) +{ + struct audio_frame *frame; + uint32_t index; + unsigned long flags; + + index = audio->in_head; + + /* XXX check for bogus frame size? */ + + frame = (void *) (((char *)audio->in[index].data) - sizeof(*frame)); + + spin_lock_irqsave(&audio->dsp_lock, flags); + audio->in[index].size = frame->bytes; + + audio->in_head = (audio->in_head + 1) & (FRAME_NUM - 1); + + /* If overflow, move the tail index foward. */ + if (audio->in_head == audio->in_tail) + audio->in_tail = (audio->in_tail + 1) & (FRAME_NUM - 1); + else + audio->in_count++; + + audio_dsp_read_buffer(audio, audio->dsp_cnt++); + spin_unlock_irqrestore(&audio->dsp_lock, flags); + + wake_up(&audio->wait); +} + +static void audrec_dsp_event(void *data, unsigned id, size_t len, + void (*getevent)(void *ptr, size_t len)) +{ + struct audio_in *audio = data; + uint16_t msg[3]; + getevent(msg, sizeof(msg)); + + switch (id) { + case AUDREC_MSG_CMD_CFG_DONE_MSG: + if (msg[0] & AUDREC_MSG_CFG_DONE_TYPE_0_UPDATE) { + if (msg[0] & AUDREC_MSG_CFG_DONE_TYPE_0_ENA) { + pr_info("audpre: CFG ENABLED\n"); + audio_dsp_set_agc(audio); + audio_dsp_set_ns(audio); + audio_dsp_set_tx_iir(audio); + audio_in_encoder_config(audio); + } else { + pr_info("audrec: CFG SLEEP\n"); + audio->running = 0; + } + } else { + pr_info("audrec: CMD_CFG_DONE %x\n", msg[0]); + } + break; + case AUDREC_MSG_CMD_AREC_PARAM_CFG_DONE_MSG: { + pr_info("audrec: PARAM CFG DONE\n"); + audio->running = 1; + break; + } + case AUDREC_MSG_FATAL_ERR_MSG: + pr_err("audrec: ERROR %x\n", msg[0]); + break; + case AUDREC_MSG_PACKET_READY_MSG: +/* REC_DBG("type %x, count %d", msg[0], (msg[1] | (msg[2] << 16))); */ + audio_in_get_dsp_frames(audio); + break; + default: + pr_err("audrec: unknown event %d\n", id); + } +} + +struct msm_adsp_ops audpre_adsp_ops = { + .event = audpre_dsp_event, +}; + +struct msm_adsp_ops audrec_adsp_ops = { + .event = audrec_dsp_event, +}; + + +#define audio_send_queue_pre(audio, cmd, len) \ + msm_adsp_write(audio->audpre, QDSP_uPAudPreProcCmdQueue, cmd, len) +#define audio_send_queue_recbs(audio, cmd, len) \ + msm_adsp_write(audio->audrec, QDSP_uPAudRecBitStreamQueue, cmd, len) +#define audio_send_queue_rec(audio, cmd, len) \ + msm_adsp_write(audio->audrec, \ + QDSP_uPAudRecCmdQueue, cmd, len) + +static int audio_dsp_set_agc(struct audio_in *audio) +{ + audpreproc_cmd_cfg_agc_params cmd; + + memset(&cmd, 0, sizeof(cmd)); + cmd.cmd_id = AUDPREPROC_CMD_CFG_AGC_PARAMS; + + if (audio->agc_enable) { + /* cmd.tx_agc_param_mask = 0xFE00 from sample code */ + cmd.tx_agc_param_mask = + (1 << AUDPREPROC_CMD_TX_AGC_PARAM_MASK_COMP_SLOPE) | + (1 << AUDPREPROC_CMD_TX_AGC_PARAM_MASK_COMP_TH) | + (1 << AUDPREPROC_CMD_TX_AGC_PARAM_MASK_EXP_SLOPE) | + (1 << AUDPREPROC_CMD_TX_AGC_PARAM_MASK_EXP_TH) | + (1 << AUDPREPROC_CMD_TX_AGC_PARAM_MASK_COMP_AIG_FLAG) | + (1 << AUDPREPROC_CMD_TX_AGC_PARAM_MASK_COMP_STATIC_GAIN) | + (1 << AUDPREPROC_CMD_TX_AGC_PARAM_MASK_TX_AGC_ENA_FLAG); + cmd.tx_agc_enable_flag = + AUDPREPROC_CMD_TX_AGC_ENA_FLAG_ENA; + memcpy(&cmd.static_gain, &audio->agc.agc_params[0], + sizeof(uint16_t) * 6); + /* cmd.param_mask = 0xFFF0 from sample code */ + cmd.param_mask = + (1 << AUDPREPROC_CMD_PARAM_MASK_RMS_TAY) | + (1 << AUDPREPROC_CMD_PARAM_MASK_RELEASEK) | + (1 << AUDPREPROC_CMD_PARAM_MASK_DELAY) | + (1 << AUDPREPROC_CMD_PARAM_MASK_ATTACKK) | + (1 << AUDPREPROC_CMD_PARAM_MASK_LEAKRATE_SLOW) | + (1 << AUDPREPROC_CMD_PARAM_MASK_LEAKRATE_FAST) | + (1 << AUDPREPROC_CMD_PARAM_MASK_AIG_RELEASEK) | + (1 << AUDPREPROC_CMD_PARAM_MASK_AIG_MIN) | + (1 << AUDPREPROC_CMD_PARAM_MASK_AIG_MAX) | + (1 << AUDPREPROC_CMD_PARAM_MASK_LEAK_UP) | + (1 << AUDPREPROC_CMD_PARAM_MASK_LEAK_DOWN) | + (1 << AUDPREPROC_CMD_PARAM_MASK_AIG_ATTACKK); + memcpy(&cmd.aig_attackk, &audio->agc.agc_params[6], + sizeof(uint16_t) * 14); + + } else { + cmd.tx_agc_param_mask = + (1 << AUDPREPROC_CMD_TX_AGC_PARAM_MASK_TX_AGC_ENA_FLAG); + cmd.tx_agc_enable_flag = + AUDPREPROC_CMD_TX_AGC_ENA_FLAG_DIS; + } +#if DEBUG + pr_info("cmd_id = 0x%04x\n", cmd.cmd_id); + pr_info("tx_agc_param_mask = 0x%04x\n", cmd.tx_agc_param_mask); + pr_info("tx_agc_enable_flag = 0x%04x\n", cmd.tx_agc_enable_flag); + pr_info("static_gain = 0x%04x\n", cmd.static_gain); + pr_info("adaptive_gain_flag = 0x%04x\n", cmd.adaptive_gain_flag); + pr_info("expander_th = 0x%04x\n", cmd.expander_th); + pr_info("expander_slope = 0x%04x\n", cmd.expander_slope); + pr_info("compressor_th = 0x%04x\n", cmd.compressor_th); + pr_info("compressor_slope = 0x%04x\n", cmd.compressor_slope); + pr_info("param_mask = 0x%04x\n", cmd.param_mask); + pr_info("aig_attackk = 0x%04x\n", cmd.aig_attackk); + pr_info("aig_leak_down = 0x%04x\n", cmd.aig_leak_down); + pr_info("aig_leak_up = 0x%04x\n", cmd.aig_leak_up); + pr_info("aig_max = 0x%04x\n", cmd.aig_max); + pr_info("aig_min = 0x%04x\n", cmd.aig_min); + pr_info("aig_releasek = 0x%04x\n", cmd.aig_releasek); + pr_info("aig_leakrate_fast = 0x%04x\n", cmd.aig_leakrate_fast); + pr_info("aig_leakrate_slow = 0x%04x\n", cmd.aig_leakrate_slow); + pr_info("attackk_msw = 0x%04x\n", cmd.attackk_msw); + pr_info("attackk_lsw = 0x%04x\n", cmd.attackk_lsw); + pr_info("delay = 0x%04x\n", cmd.delay); + pr_info("releasek_msw = 0x%04x\n", cmd.releasek_msw); + pr_info("releasek_lsw = 0x%04x\n", cmd.releasek_lsw); + pr_info("rms_tav = 0x%04x\n", cmd.rms_tav); +#endif + return audio_send_queue_pre(audio, &cmd, sizeof(cmd)); +} + +static int audio_dsp_set_ns(struct audio_in *audio) +{ + audpreproc_cmd_cfg_ns_params cmd; + + memset(&cmd, 0, sizeof(cmd)); + cmd.cmd_id = AUDPREPROC_CMD_CFG_NS_PARAMS; + + if (audio->ns_enable) { + /* cmd.ec_mode_new is fixed as 0x0064 when enable from sample code */ + cmd.ec_mode_new = + AUDPREPROC_CMD_EC_MODE_NEW_NS_ENA | + AUDPREPROC_CMD_EC_MODE_NEW_HB_ENA | + AUDPREPROC_CMD_EC_MODE_NEW_VA_ENA; + memcpy(&cmd.dens_gamma_n, &audio->ns.ns_params, + sizeof(audio->ns.ns_params)); + } else { + cmd.ec_mode_new = + AUDPREPROC_CMD_EC_MODE_NEW_NLMS_DIS | + AUDPREPROC_CMD_EC_MODE_NEW_DES_DIS | + AUDPREPROC_CMD_EC_MODE_NEW_NS_DIS | + AUDPREPROC_CMD_EC_MODE_NEW_CNI_DIS | + AUDPREPROC_CMD_EC_MODE_NEW_NLES_DIS | + AUDPREPROC_CMD_EC_MODE_NEW_HB_DIS | + AUDPREPROC_CMD_EC_MODE_NEW_VA_DIS | + AUDPREPROC_CMD_EC_MODE_NEW_PCD_DIS | + AUDPREPROC_CMD_EC_MODE_NEW_FEHI_DIS | + AUDPREPROC_CMD_EC_MODE_NEW_NEHI_DIS | + AUDPREPROC_CMD_EC_MODE_NEW_NLPP_DIS | + AUDPREPROC_CMD_EC_MODE_NEW_FNE_DIS | + AUDPREPROC_CMD_EC_MODE_NEW_PRENLMS_DIS; + } +#if DEBUG + pr_info("cmd_id = 0x%04x\n", cmd.cmd_id); + pr_info("ec_mode_new = 0x%04x\n", cmd.ec_mode_new); + pr_info("dens_gamma_n = 0x%04x\n", cmd.dens_gamma_n); + pr_info("dens_nfe_block_size = 0x%04x\n", cmd.dens_nfe_block_size); + pr_info("dens_limit_ns = 0x%04x\n", cmd.dens_limit_ns); + pr_info("dens_limit_ns_d = 0x%04x\n", cmd.dens_limit_ns_d); + pr_info("wb_gamma_e = 0x%04x\n", cmd.wb_gamma_e); + pr_info("wb_gamma_n = 0x%04x\n", cmd.wb_gamma_n); +#endif + return audio_send_queue_pre(audio, &cmd, sizeof(cmd)); +} + +static int audio_dsp_set_tx_iir(struct audio_in *audio) +{ + struct audpre_cmd_iir_config_type cmd; + + memset(&cmd, 0, sizeof(cmd)); + cmd.cmd_id = AUDPREPROC_CMD_CFG_IIR_TUNING_FILTER_PARAMS; + + if (audio->iir_enable) { + cmd.active_flag = AUDPREPROC_CMD_IIR_ACTIVE_FLAG_ENA; + cmd.num_bands = audio->iir.num_bands; + memcpy(&cmd.iir_params, &audio->iir.iir_params, + sizeof(audio->iir.iir_params)); + } else { + cmd.active_flag = AUDPREPROC_CMD_IIR_ACTIVE_FLAG_DIS; + } +#if DEBUG + pr_info("cmd_id = 0x%04x\n", cmd.cmd_id); + pr_info("active_flag = 0x%04x\n", cmd.active_flag); +#endif + return audio_send_queue_pre(audio, &cmd, sizeof(cmd)); +} + +static int audio_in_dsp_enable(struct audio_in *audio, int enable) +{ + audrec_cmd_cfg cmd; + + memset(&cmd, 0, sizeof(cmd)); + cmd.cmd_id = AUDREC_CMD_CFG; + cmd.type_0 = enable ? AUDREC_CMD_TYPE_0_ENA : AUDREC_CMD_TYPE_0_DIS; + cmd.type_0 |= (AUDREC_CMD_TYPE_0_UPDATE | audio->type); + cmd.type_1 = 0; + + return audio_send_queue_rec(audio, &cmd, sizeof(cmd)); +} + +static int audio_in_encoder_config(struct audio_in *audio) +{ + audrec_cmd_arec0param_cfg cmd; + uint16_t *data = (void *) audio->data; + unsigned n; + + memset(&cmd, 0, sizeof(cmd)); + cmd.cmd_id = AUDREC_CMD_AREC0PARAM_CFG; + cmd.ptr_to_extpkt_buffer_msw = audio->phys >> 16; + cmd.ptr_to_extpkt_buffer_lsw = audio->phys; + cmd.buf_len = FRAME_NUM; /* Both WAV and AAC use 8 frames */ + cmd.samp_rate_index = audio->samp_rate_index; + cmd.stereo_mode = audio->channel_mode; /* 0 for mono, 1 for stereo */ + + /* FIXME have no idea why cmd.rec_quality is fixed + * as 0x1C00 from sample code + */ + cmd.rec_quality = 0x1C00; + + /* prepare buffer pointers: + * Mono: 1024 samples + 4 halfword header + * Stereo: 2048 samples + 4 halfword header + * AAC + * Mono/Stere: 768 + 4 halfword header + */ + for (n = 0; n < FRAME_NUM; n++) { + audio->in[n].data = data + 4; + if (audio->type == AUDREC_CMD_TYPE_0_INDEX_WAV) + data += (4 + (audio->channel_mode ? 2048 : 1024)); + else if (audio->type == AUDREC_CMD_TYPE_0_INDEX_AAC) + data += (4 + 768); + } + + return audio_send_queue_rec(audio, &cmd, sizeof(cmd)); +} + +static int audio_dsp_read_buffer(struct audio_in *audio, uint32_t read_cnt) +{ + audrec_cmd_packet_ext_ptr cmd; + + memset(&cmd, 0, sizeof(cmd)); + cmd.cmd_id = AUDREC_CMD_PACKET_EXT_PTR; + /* Both WAV and AAC use AUDREC_CMD_TYPE_0 */ + cmd.type = AUDREC_CMD_TYPE_0; + cmd.curr_rec_count_msw = read_cnt >> 16; + cmd.curr_rec_count_lsw = read_cnt; + + return audio_send_queue_recbs(audio, &cmd, sizeof(cmd)); +} + +/* ------------------- device --------------------- */ + +static void audio_enable_agc(struct audio_in *audio, int enable) +{ + if (audio->agc_enable != enable) { + audio->agc_enable = enable; + if (audio->running) + audio_dsp_set_agc(audio); + } +} + +static void audio_enable_ns(struct audio_in *audio, int enable) +{ + if (audio->ns_enable != enable) { + audio->ns_enable = enable; + if (audio->running) + audio_dsp_set_ns(audio); + } +} + +static void audio_enable_tx_iir(struct audio_in *audio, int enable) +{ + if (audio->iir_enable != enable) { + audio->iir_enable = enable; + if (audio->running) + audio_dsp_set_tx_iir(audio); + } +} + +static void audio_flush(struct audio_in *audio) +{ + int i; + + audio->dsp_cnt = 0; + audio->in_head = 0; + audio->in_tail = 0; + audio->in_count = 0; + for (i = 0; i < FRAME_NUM; i++) { + audio->in[i].size = 0; + audio->in[i].read = 0; + } +} + +static long audio_in_ioctl(struct file *file, + unsigned int cmd, unsigned long arg) +{ + struct audio_in *audio = file->private_data; + int rc; + + if (cmd == AUDIO_GET_STATS) { + struct msm_audio_stats stats; + stats.byte_count = atomic_read(&audio->in_bytes); + if (copy_to_user((void *) arg, &stats, sizeof(stats))) + return -EFAULT; + return 0; + } + + mutex_lock(&audio->lock); + switch (cmd) { + case AUDIO_START: + rc = audio_in_enable(audio); + break; + case AUDIO_STOP: + rc = audio_in_disable(audio); + audio->stopped = 1; + break; + case AUDIO_FLUSH: + if (audio->stopped) { + /* Make sure we're stopped and we wake any threads + * that might be blocked holding the read_lock. + * While audio->stopped read threads will always + * exit immediately. + */ + wake_up(&audio->wait); + mutex_lock(&audio->read_lock); + audio_flush(audio); + mutex_unlock(&audio->read_lock); + } + case AUDIO_SET_CONFIG: { + struct msm_audio_config cfg; + if (copy_from_user(&cfg, (void *) arg, sizeof(cfg))) { + rc = -EFAULT; + break; + } + if (cfg.channel_count == 1) { + cfg.channel_count = AUDREC_CMD_STEREO_MODE_MONO; + } else if (cfg.channel_count == 2) { + cfg.channel_count = AUDREC_CMD_STEREO_MODE_STEREO; + } else { + rc = -EINVAL; + break; + } + + if (cfg.type == 0) { + cfg.type = AUDREC_CMD_TYPE_0_INDEX_WAV; + } else if (cfg.type == 1) { + cfg.type = AUDREC_CMD_TYPE_0_INDEX_AAC; + } else { + rc = -EINVAL; + break; + } + audio->samp_rate = convert_samp_rate(cfg.sample_rate); + audio->samp_rate_index = + convert_dsp_samp_index(cfg.sample_rate); + audio->channel_mode = cfg.channel_count; + audio->buffer_size = + audio->channel_mode ? STEREO_DATA_SIZE + : MONO_DATA_SIZE; + audio->type = cfg.type; + rc = 0; + break; + } + case AUDIO_GET_CONFIG: { + struct msm_audio_config cfg; + cfg.buffer_size = audio->buffer_size; + cfg.buffer_count = FRAME_NUM; + cfg.sample_rate = convert_samp_index(audio->samp_rate); + if (audio->channel_mode == AUDREC_CMD_STEREO_MODE_MONO) + cfg.channel_count = 1; + else + cfg.channel_count = 2; + if (audio->type == AUDREC_CMD_TYPE_0_INDEX_WAV) + cfg.type = 0; + else + cfg.type = 1; + cfg.unused[0] = 0; + cfg.unused[1] = 0; + cfg.unused[2] = 0; + if (copy_to_user((void *) arg, &cfg, sizeof(cfg))) + rc = -EFAULT; + else + rc = 0; + break; + } + default: + rc = -EINVAL; + } + mutex_unlock(&audio->lock); + return rc; +} + +static ssize_t audio_in_read(struct file *file, + char __user *buf, + size_t count, loff_t *pos) +{ + struct audio_in *audio = file->private_data; + unsigned long flags; + const char __user *start = buf; + void *data; + uint32_t index; + uint32_t size; + int rc = 0; + + mutex_lock(&audio->read_lock); + while (count > 0) { + rc = wait_event_interruptible( + audio->wait, (audio->in_count > 0) || audio->stopped); + if (rc < 0) + break; + + if (audio->stopped) { + rc = -EBUSY; + break; + } + + index = audio->in_tail; + data = (uint8_t *) audio->in[index].data; + size = audio->in[index].size; + if (count >= size) { + if (copy_to_user(buf, data, size)) { + rc = -EFAULT; + break; + } + spin_lock_irqsave(&audio->dsp_lock, flags); + if (index != audio->in_tail) { + /* overrun -- data is invalid and we need to retry */ + spin_unlock_irqrestore(&audio->dsp_lock, flags); + continue; + } + audio->in[index].size = 0; + audio->in_tail = (audio->in_tail + 1) & (FRAME_NUM - 1); + audio->in_count--; + spin_unlock_irqrestore(&audio->dsp_lock, flags); + count -= size; + buf += size; + if (audio->type == AUDREC_CMD_TYPE_0_INDEX_AAC) + break; + } else { + pr_err("audio_in: short read\n"); + break; + } + if (audio->type == AUDREC_CMD_TYPE_0_INDEX_AAC) + break; /* AAC only read one frame */ + } + mutex_unlock(&audio->read_lock); + + if (buf > start) + return buf - start; + + return rc; +} + +static ssize_t audio_in_write(struct file *file, + const char __user *buf, + size_t count, loff_t *pos) +{ + return -EINVAL; +} + +static int audio_in_release(struct inode *inode, struct file *file) +{ + struct audio_in *audio = file->private_data; + + mutex_lock(&audio->lock); + audio_in_disable(audio); + audio_flush(audio); + msm_adsp_put(audio->audrec); + msm_adsp_put(audio->audpre); + audio->audrec = NULL; + audio->audpre = NULL; + audio->opened = 0; + mutex_unlock(&audio->lock); + return 0; +} + +static struct audio_in the_audio_in; + +static int audio_in_open(struct inode *inode, struct file *file) +{ + struct audio_in *audio = &the_audio_in; + int rc; + + mutex_lock(&audio->lock); + if (audio->opened) { + rc = -EBUSY; + goto done; + } + + /* Settings will be re-config at AUDIO_SET_CONFIG, + * but at least we need to have initial config + */ + audio->samp_rate = RPC_AUD_DEF_SAMPLE_RATE_11025; + audio->samp_rate_index = AUDREC_CMD_SAMP_RATE_INDX_11025; + audio->channel_mode = AUDREC_CMD_STEREO_MODE_MONO; + audio->buffer_size = MONO_DATA_SIZE; + audio->type = AUDREC_CMD_TYPE_0_INDEX_WAV; + + rc = audmgr_open(&audio->audmgr); + if (rc) + goto done; + rc = msm_adsp_get("AUDPREPROCTASK", &audio->audpre, + &audpre_adsp_ops, audio); + if (rc) + goto done; + rc = msm_adsp_get("AUDRECTASK", &audio->audrec, + &audrec_adsp_ops, audio); + if (rc) + goto done; + + audio->dsp_cnt = 0; + audio->stopped = 0; + + audio_flush(audio); + + file->private_data = audio; + audio->opened = 1; + rc = 0; +done: + mutex_unlock(&audio->lock); + return rc; +} + +static long audpre_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + struct audio_in *audio = file->private_data; + int rc = 0, enable; + uint16_t enable_mask; +#if DEBUG + int i; +#endif + + mutex_lock(&audio->lock); + switch (cmd) { + case AUDIO_ENABLE_AUDPRE: { + if (copy_from_user(&enable_mask, (void *) arg, + sizeof(enable_mask))) + goto out_fault; + + enable = (enable_mask & AGC_ENABLE) ? 1 : 0; + audio_enable_agc(audio, enable); + enable = (enable_mask & NS_ENABLE) ? 1 : 0; + audio_enable_ns(audio, enable); + enable = (enable_mask & IIR_ENABLE) ? 1 : 0; + audio_enable_tx_iir(audio, enable); + break; + } + case AUDIO_SET_AGC: { + if (copy_from_user(&audio->agc, (void *) arg, + sizeof(audio->agc))) + goto out_fault; +#if DEBUG + pr_info("set agc\n"); + for (i = 0; i < AGC_PARAM_SIZE; i++) \ + pr_info("agc_params[%d] = 0x%04x\n", i, + audio->agc.agc_params[i]); +#endif + break; + } + case AUDIO_SET_NS: { + if (copy_from_user(&audio->ns, (void *) arg, + sizeof(audio->ns))) + goto out_fault; +#if DEBUG + pr_info("set ns\n"); + for (i = 0; i < NS_PARAM_SIZE; i++) \ + pr_info("ns_params[%d] = 0x%04x\n", + i, audio->ns.ns_params[i]); +#endif + break; + } + case AUDIO_SET_TX_IIR: { + if (copy_from_user(&audio->iir, (void *) arg, + sizeof(audio->iir))) + goto out_fault; +#if DEBUG + pr_info("set iir\n"); + pr_info("iir.num_bands = 0x%04x\n", audio->iir.num_bands); + for (i = 0; i < IIR_PARAM_SIZE; i++) \ + pr_info("iir_params[%d] = 0x%04x\n", + i, audio->iir.iir_params[i]); +#endif + break; + } + default: + rc = -EINVAL; + } + + goto out; + +out_fault: + rc = -EFAULT; +out: + mutex_unlock(&audio->lock); + return rc; +} + +static int audpre_open(struct inode *inode, struct file *file) +{ + struct audio_in *audio = &the_audio_in; + file->private_data = audio; + return 0; +} + +static struct file_operations audio_fops = { + .owner = THIS_MODULE, + .open = audio_in_open, + .release = audio_in_release, + .read = audio_in_read, + .write = audio_in_write, + .unlocked_ioctl = audio_in_ioctl, +}; + +static struct file_operations audpre_fops = { + .owner = THIS_MODULE, + .open = audpre_open, + .unlocked_ioctl = audpre_ioctl, +}; + +struct miscdevice audio_in_misc = { + .minor = MISC_DYNAMIC_MINOR, + .name = "msm_pcm_in", + .fops = &audio_fops, +}; + +struct miscdevice audpre_misc = { + .minor = MISC_DYNAMIC_MINOR, + .name = "msm_audpre", + .fops = &audpre_fops, +}; + +static int __init audio_in_init(void) +{ + int rc; + the_audio_in.data = dma_alloc_coherent(NULL, DMASZ, + &the_audio_in.phys, GFP_KERNEL); + if (!the_audio_in.data) { + printk(KERN_ERR "%s: Unable to allocate DMA buffer\n", + __func__); + return -ENOMEM; + } + + mutex_init(&the_audio_in.lock); + mutex_init(&the_audio_in.read_lock); + spin_lock_init(&the_audio_in.dsp_lock); + init_waitqueue_head(&the_audio_in.wait); + rc = misc_register(&audio_in_misc); + if (!rc) { + rc = misc_register(&audpre_misc); + if (rc < 0) + misc_deregister(&audio_in_misc); + } + return rc; +} + +device_initcall(audio_in_init); |