diff options
author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-14 14:49:09 (GMT) |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-15 19:35:54 (GMT) |
commit | 68de959f773a1d49096835c411390bceff5d1549 (patch) | |
tree | 99f48fd448c97981b1793f426e28df0d54d880bf /drivers/media/video/bt8xx/bttv-input.c | |
parent | 0aa77f6c2954896b132f8b6f2e9f063c52800913 (diff) | |
download | linux-fsl-qoriq-68de959f773a1d49096835c411390bceff5d1549.tar.xz |
[media] bt8xx: move analog TV part to be together with DTV one
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/bt8xx/bttv-input.c')
-rw-r--r-- | drivers/media/video/bt8xx/bttv-input.c | 589 |
1 files changed, 0 insertions, 589 deletions
diff --git a/drivers/media/video/bt8xx/bttv-input.c b/drivers/media/video/bt8xx/bttv-input.c deleted file mode 100644 index ef4c7cd..0000000 --- a/drivers/media/video/bt8xx/bttv-input.c +++ /dev/null @@ -1,589 +0,0 @@ -/* - * - * Copyright (c) 2003 Gerd Knorr - * Copyright (c) 2003 Pavel Machek - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/interrupt.h> -#include <linux/input.h> -#include <linux/slab.h> - -#include "bttv.h" -#include "bttvp.h" - - -static int ir_debug; -module_param(ir_debug, int, 0644); - -static int ir_rc5_remote_gap = 885; -module_param(ir_rc5_remote_gap, int, 0644); - -#undef dprintk -#define dprintk(fmt, ...) \ -do { \ - if (ir_debug >= 1) \ - pr_info(fmt, ##__VA_ARGS__); \ -} while (0) - -#define DEVNAME "bttv-input" - -#define MODULE_NAME "bttv" - -/* ---------------------------------------------------------------------- */ - -static void ir_handle_key(struct bttv *btv) -{ - struct bttv_ir *ir = btv->remote; - u32 gpio,data; - - /* read gpio value */ - gpio = bttv_gpio_read(&btv->c); - if (ir->polling) { - if (ir->last_gpio == gpio) - return; - ir->last_gpio = gpio; - } - - /* extract data */ - data = ir_extract_bits(gpio, ir->mask_keycode); - dprintk("irq gpio=0x%x code=%d | %s%s%s\n", - gpio, data, - ir->polling ? "poll" : "irq", - (gpio & ir->mask_keydown) ? " down" : "", - (gpio & ir->mask_keyup) ? " up" : ""); - - if ((ir->mask_keydown && (gpio & ir->mask_keydown)) || - (ir->mask_keyup && !(gpio & ir->mask_keyup))) { - rc_keydown_notimeout(ir->dev, data, 0); - } else { - /* HACK: Probably, ir->mask_keydown is missing - for this board */ - if (btv->c.type == BTTV_BOARD_WINFAST2000) - rc_keydown_notimeout(ir->dev, data, 0); - - rc_keyup(ir->dev); - } -} - -static void ir_enltv_handle_key(struct bttv *btv) -{ - struct bttv_ir *ir = btv->remote; - u32 gpio, data, keyup; - - /* read gpio value */ - gpio = bttv_gpio_read(&btv->c); - - /* extract data */ - data = ir_extract_bits(gpio, ir->mask_keycode); - - /* Check if it is keyup */ - keyup = (gpio & ir->mask_keyup) ? 1 << 31 : 0; - - if ((ir->last_gpio & 0x7f) != data) { - dprintk("gpio=0x%x code=%d | %s\n", - gpio, data, - (gpio & ir->mask_keyup) ? " up" : "up/down"); - - rc_keydown_notimeout(ir->dev, data, 0); - if (keyup) - rc_keyup(ir->dev); - } else { - if ((ir->last_gpio & 1 << 31) == keyup) - return; - - dprintk("(cnt) gpio=0x%x code=%d | %s\n", - gpio, data, - (gpio & ir->mask_keyup) ? " up" : "down"); - - if (keyup) - rc_keyup(ir->dev); - else - rc_keydown_notimeout(ir->dev, data, 0); - } - - ir->last_gpio = data | keyup; -} - -static int bttv_rc5_irq(struct bttv *btv); - -void bttv_input_irq(struct bttv *btv) -{ - struct bttv_ir *ir = btv->remote; - - if (ir->rc5_gpio) - bttv_rc5_irq(btv); - else if (!ir->polling) - ir_handle_key(btv); -} - -static void bttv_input_timer(unsigned long data) -{ - struct bttv *btv = (struct bttv*)data; - struct bttv_ir *ir = btv->remote; - - if (btv->c.type == BTTV_BOARD_ENLTV_FM_2) - ir_enltv_handle_key(btv); - else - ir_handle_key(btv); - mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling)); -} - -/* - * FIXME: Nebula digi uses the legacy way to decode RC5, instead of relying - * on the rc-core way. As we need to be sure that both IRQ transitions are - * properly triggered, Better to touch it only with this hardware for - * testing. - */ - -#define RC5_START(x) (((x) >> 12) & 3) -#define RC5_TOGGLE(x) (((x) >> 11) & 1) -#define RC5_ADDR(x) (((x) >> 6) & 31) -#define RC5_INSTR(x) ((x) & 63) - -/* decode raw bit pattern to RC5 code */ -static u32 bttv_rc5_decode(unsigned int code) -{ - unsigned int org_code = code; - unsigned int pair; - unsigned int rc5 = 0; - int i; - - for (i = 0; i < 14; ++i) { - pair = code & 0x3; - code >>= 2; - - rc5 <<= 1; - switch (pair) { - case 0: - case 2: - break; - case 1: - rc5 |= 1; - break; - case 3: - dprintk("rc5_decode(%x) bad code\n", - org_code); - return 0; - } - } - dprintk("code=%x, rc5=%x, start=%x, toggle=%x, address=%x, " - "instr=%x\n", rc5, org_code, RC5_START(rc5), - RC5_TOGGLE(rc5), RC5_ADDR(rc5), RC5_INSTR(rc5)); - return rc5; -} - -static void bttv_rc5_timer_end(unsigned long data) -{ - struct bttv_ir *ir = (struct bttv_ir *)data; - struct timeval tv; - u32 gap; - u32 rc5 = 0; - - /* get time */ - do_gettimeofday(&tv); - - /* avoid overflow with gap >1s */ - if (tv.tv_sec - ir->base_time.tv_sec > 1) { - gap = 200000; - } else { - gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) + - tv.tv_usec - ir->base_time.tv_usec; - } - - /* signal we're ready to start a new code */ - ir->active = false; - - /* Allow some timer jitter (RC5 is ~24ms anyway so this is ok) */ - if (gap < 28000) { - dprintk("spurious timer_end\n"); - return; - } - - if (ir->last_bit < 20) { - /* ignore spurious codes (caused by light/other remotes) */ - dprintk("short code: %x\n", ir->code); - } else { - ir->code = (ir->code << ir->shift_by) | 1; - rc5 = bttv_rc5_decode(ir->code); - - /* two start bits? */ - if (RC5_START(rc5) != ir->start) { - pr_info(DEVNAME ":" - " rc5 start bits invalid: %u\n", RC5_START(rc5)); - - /* right address? */ - } else if (RC5_ADDR(rc5) == ir->addr) { - u32 toggle = RC5_TOGGLE(rc5); - u32 instr = RC5_INSTR(rc5); - - /* Good code */ - rc_keydown(ir->dev, instr, toggle); - dprintk("instruction %x, toggle %x\n", - instr, toggle); - } - } -} - -static int bttv_rc5_irq(struct bttv *btv) -{ - struct bttv_ir *ir = btv->remote; - struct timeval tv; - u32 gpio; - u32 gap; - unsigned long current_jiffies; - - /* read gpio port */ - gpio = bttv_gpio_read(&btv->c); - - /* get time of bit */ - current_jiffies = jiffies; - do_gettimeofday(&tv); - - /* avoid overflow with gap >1s */ - if (tv.tv_sec - ir->base_time.tv_sec > 1) { - gap = 200000; - } else { - gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) + - tv.tv_usec - ir->base_time.tv_usec; - } - - dprintk("RC5 IRQ: gap %d us for %s\n", - gap, (gpio & 0x20) ? "mark" : "space"); - - /* remote IRQ? */ - if (!(gpio & 0x20)) - return 0; - - /* active code => add bit */ - if (ir->active) { - /* only if in the code (otherwise spurious IRQ or timer - late) */ - if (ir->last_bit < 28) { - ir->last_bit = (gap - ir_rc5_remote_gap / 2) / - ir_rc5_remote_gap; - ir->code |= 1 << ir->last_bit; - } - /* starting new code */ - } else { - ir->active = true; - ir->code = 0; - ir->base_time = tv; - ir->last_bit = 0; - - mod_timer(&ir->timer, current_jiffies + msecs_to_jiffies(30)); - } - - /* toggle GPIO pin 4 to reset the irq */ - bttv_gpio_write(&btv->c, gpio & ~(1 << 4)); - bttv_gpio_write(&btv->c, gpio | (1 << 4)); - return 1; -} - -/* ---------------------------------------------------------------------- */ - -static void bttv_ir_start(struct bttv *btv, struct bttv_ir *ir) -{ - if (ir->polling) { - setup_timer(&ir->timer, bttv_input_timer, (unsigned long)btv); - ir->timer.expires = jiffies + msecs_to_jiffies(1000); - add_timer(&ir->timer); - } else if (ir->rc5_gpio) { - /* set timer_end for code completion */ - setup_timer(&ir->timer, bttv_rc5_timer_end, (unsigned long)ir); - ir->shift_by = 1; - ir->start = 3; - ir->addr = 0x0; - ir->rc5_remote_gap = ir_rc5_remote_gap; - } -} - -static void bttv_ir_stop(struct bttv *btv) -{ - if (btv->remote->polling) - del_timer_sync(&btv->remote->timer); - - if (btv->remote->rc5_gpio) { - u32 gpio; - - del_timer_sync(&btv->remote->timer); - - gpio = bttv_gpio_read(&btv->c); - bttv_gpio_write(&btv->c, gpio & ~(1 << 4)); - } -} - -/* - * Get_key functions used by I2C remotes - */ - -static int get_key_pv951(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) -{ - unsigned char b; - - /* poll IR chip */ - if (1 != i2c_master_recv(ir->c, &b, 1)) { - dprintk("read error\n"); - return -EIO; - } - - /* ignore 0xaa */ - if (b==0xaa) - return 0; - dprintk("key %02x\n", b); - - /* - * NOTE: - * lirc_i2c maps the pv951 code as: - * addr = 0x61D6 - * cmd = bit_reverse (b) - * So, it seems that this device uses NEC extended - * I decided to not fix the table, due to two reasons: - * 1) Without the actual device, this is only a guess; - * 2) As the addr is not reported via I2C, nor can be changed, - * the device is bound to the vendor-provided RC. - */ - - *ir_key = b; - *ir_raw = b; - return 1; -} - -/* Instantiate the I2C IR receiver device, if present */ -void __devinit init_bttv_i2c_ir(struct bttv *btv) -{ - const unsigned short addr_list[] = { - 0x1a, 0x18, 0x64, 0x30, 0x71, - I2C_CLIENT_END - }; - struct i2c_board_info info; - - if (0 != btv->i2c_rc) - return; - - memset(&info, 0, sizeof(struct i2c_board_info)); - memset(&btv->init_data, 0, sizeof(btv->init_data)); - strlcpy(info.type, "ir_video", I2C_NAME_SIZE); - - switch (btv->c.type) { - case BTTV_BOARD_PV951: - btv->init_data.name = "PV951"; - btv->init_data.get_key = get_key_pv951; - btv->init_data.ir_codes = RC_MAP_PV951; - info.addr = 0x4b; - break; - default: - /* - * The external IR receiver is at i2c address 0x34 (0x35 for - * reads). Future Hauppauge cards will have an internal - * receiver at 0x30 (0x31 for reads). In theory, both can be - * fitted, and Hauppauge suggest an external overrides an - * internal. - * That's why we probe 0x1a (~0x34) first. CB - */ - - i2c_new_probed_device(&btv->c.i2c_adap, &info, addr_list, NULL); - return; - } - - if (btv->init_data.name) - info.platform_data = &btv->init_data; - i2c_new_device(&btv->c.i2c_adap, &info); - - return; -} - -int __devexit fini_bttv_i2c(struct bttv *btv) -{ - if (0 != btv->i2c_rc) - return 0; - - return i2c_del_adapter(&btv->c.i2c_adap); -} - -int bttv_input_init(struct bttv *btv) -{ - struct bttv_ir *ir; - char *ir_codes = NULL; - struct rc_dev *rc; - int err = -ENOMEM; - - if (!btv->has_remote) - return -ENODEV; - - ir = kzalloc(sizeof(*ir),GFP_KERNEL); - rc = rc_allocate_device(); - if (!ir || !rc) - goto err_out_free; - - /* detect & configure */ - switch (btv->c.type) { - case BTTV_BOARD_AVERMEDIA: - case BTTV_BOARD_AVPHONE98: - case BTTV_BOARD_AVERMEDIA98: - ir_codes = RC_MAP_AVERMEDIA; - ir->mask_keycode = 0xf88000; - ir->mask_keydown = 0x010000; - ir->polling = 50; // ms - break; - - case BTTV_BOARD_AVDVBT_761: - case BTTV_BOARD_AVDVBT_771: - ir_codes = RC_MAP_AVERMEDIA_DVBT; - ir->mask_keycode = 0x0f00c0; - ir->mask_keydown = 0x000020; - ir->polling = 50; // ms - break; - - case BTTV_BOARD_PXELVWPLTVPAK: - ir_codes = RC_MAP_PIXELVIEW; - ir->mask_keycode = 0x003e00; - ir->mask_keyup = 0x010000; - ir->polling = 50; // ms - break; - case BTTV_BOARD_PV_M4900: - case BTTV_BOARD_PV_BT878P_9B: - case BTTV_BOARD_PV_BT878P_PLUS: - ir_codes = RC_MAP_PIXELVIEW; - ir->mask_keycode = 0x001f00; - ir->mask_keyup = 0x008000; - ir->polling = 50; // ms - break; - - case BTTV_BOARD_WINFAST2000: - ir_codes = RC_MAP_WINFAST; - ir->mask_keycode = 0x1f8; - break; - case BTTV_BOARD_MAGICTVIEW061: - case BTTV_BOARD_MAGICTVIEW063: - ir_codes = RC_MAP_WINFAST; - ir->mask_keycode = 0x0008e000; - ir->mask_keydown = 0x00200000; - break; - case BTTV_BOARD_APAC_VIEWCOMP: - ir_codes = RC_MAP_APAC_VIEWCOMP; - ir->mask_keycode = 0x001f00; - ir->mask_keyup = 0x008000; - ir->polling = 50; // ms - break; - case BTTV_BOARD_ASKEY_CPH03X: - case BTTV_BOARD_CONCEPTRONIC_CTVFMI2: - case BTTV_BOARD_CONTVFMI: - ir_codes = RC_MAP_PIXELVIEW; - ir->mask_keycode = 0x001F00; - ir->mask_keyup = 0x006000; - ir->polling = 50; // ms - break; - case BTTV_BOARD_NEBULA_DIGITV: - ir_codes = RC_MAP_NEBULA; - ir->rc5_gpio = true; - break; - case BTTV_BOARD_MACHTV_MAGICTV: - ir_codes = RC_MAP_APAC_VIEWCOMP; - ir->mask_keycode = 0x001F00; - ir->mask_keyup = 0x004000; - ir->polling = 50; /* ms */ - break; - case BTTV_BOARD_KOZUMI_KTV_01C: - ir_codes = RC_MAP_PCTV_SEDNA; - ir->mask_keycode = 0x001f00; - ir->mask_keyup = 0x006000; - ir->polling = 50; /* ms */ - break; - case BTTV_BOARD_ENLTV_FM_2: - ir_codes = RC_MAP_ENCORE_ENLTV2; - ir->mask_keycode = 0x00fd00; - ir->mask_keyup = 0x000080; - ir->polling = 1; /* ms */ - ir->last_gpio = ir_extract_bits(bttv_gpio_read(&btv->c), - ir->mask_keycode); - break; - } - if (NULL == ir_codes) { - dprintk("Ooops: IR config error [card=%d]\n", btv->c.type); - err = -ENODEV; - goto err_out_free; - } - - if (ir->rc5_gpio) { - u32 gpio; - /* enable remote irq */ - bttv_gpio_inout(&btv->c, (1 << 4), 1 << 4); - gpio = bttv_gpio_read(&btv->c); - bttv_gpio_write(&btv->c, gpio & ~(1 << 4)); - bttv_gpio_write(&btv->c, gpio | (1 << 4)); - } else { - /* init hardware-specific stuff */ - bttv_gpio_inout(&btv->c, ir->mask_keycode | ir->mask_keydown, 0); - } - - /* init input device */ - ir->dev = rc; - - snprintf(ir->name, sizeof(ir->name), "bttv IR (card=%d)", - btv->c.type); - snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", - pci_name(btv->c.pci)); - - rc->input_name = ir->name; - rc->input_phys = ir->phys; - rc->input_id.bustype = BUS_PCI; - rc->input_id.version = 1; - if (btv->c.pci->subsystem_vendor) { - rc->input_id.vendor = btv->c.pci->subsystem_vendor; - rc->input_id.product = btv->c.pci->subsystem_device; - } else { - rc->input_id.vendor = btv->c.pci->vendor; - rc->input_id.product = btv->c.pci->device; - } - rc->dev.parent = &btv->c.pci->dev; - rc->map_name = ir_codes; - rc->driver_name = MODULE_NAME; - - btv->remote = ir; - bttv_ir_start(btv, ir); - - /* all done */ - err = rc_register_device(rc); - if (err) - goto err_out_stop; - - return 0; - - err_out_stop: - bttv_ir_stop(btv); - btv->remote = NULL; - err_out_free: - rc_free_device(rc); - kfree(ir); - return err; -} - -void bttv_input_fini(struct bttv *btv) -{ - if (btv->remote == NULL) - return; - - bttv_ir_stop(btv); - rc_unregister_device(btv->remote->dev); - kfree(btv->remote); - btv->remote = NULL; -} |