diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/bt8xx/bttv-cards.c | 49 | ||||
| -rw-r--r-- | drivers/media/video/bt8xx/bttv.h | 1 |
2 files changed, 50 insertions, 0 deletions
diff --git a/drivers/media/video/bt8xx/bttv-cards.c b/drivers/media/video/bt8xx/bttv-cards.c index 076b7f216538..ff2933ab705f 100644 --- a/drivers/media/video/bt8xx/bttv-cards.c +++ b/drivers/media/video/bt8xx/bttv-cards.c @@ -80,6 +80,8 @@ static void phytec_muxsel(struct bttv *btv, unsigned int input); static void gv800s_muxsel(struct bttv *btv, unsigned int input); static void gv800s_init(struct bttv *btv); +static void td3116_muxsel(struct bttv *btv, unsigned int input); + static int terratec_active_radio_upgrade(struct bttv *btv); static int tea5757_read(struct bttv *btv); static int tea5757_write(struct bttv *btv, int value); @@ -342,6 +344,7 @@ static struct CARD { { 0x15401835, BTTV_BOARD_PV183, "Provideo PV183-6" }, { 0x15401836, BTTV_BOARD_PV183, "Provideo PV183-7" }, { 0x15401837, BTTV_BOARD_PV183, "Provideo PV183-8" }, + { 0x3116f200, BTTV_BOARD_TVT_TD3116, "Tongwei Video Technology TD-3116" }, { 0, -1, NULL } }; @@ -2880,6 +2883,16 @@ struct tvcard bttv_tvcards[] = { .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, }, + [BTTV_BOARD_TVT_TD3116] = { + .name = "Tongwei Video Technology TD-3116", + .video_inputs = 16, + .gpiomask = 0xc00ff, + .muxsel = MUXSEL(2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2), + .muxsel_hook = td3116_muxsel, + .svhs = NO_SVHS, + .pll = PLL_28, + .tuner_type = TUNER_ABSENT, + }, }; static const unsigned int bttv_num_tvcards = ARRAY_SIZE(bttv_tvcards); @@ -3229,6 +3242,42 @@ static void geovision_muxsel(struct bttv *btv, unsigned int input) gpio_bits(0xf, inmux); } +/* + * The TD3116 has 2 74HC4051 muxes wired to the MUX0 input of a bt878. + * The first 74HC4051 has the lower 8 inputs, the second one the higher 8. + * The muxes are controlled via a 74HC373 latch which is connected to + * GPIOs 0-7. GPIO 18 is connected to the LE signal of the latch. + * Q0 of the latch is connected to the Enable (~E) input of the first + * 74HC4051. Q1 - Q3 are connected to S0 - S2 of the same 74HC4051. + * Q4 - Q7 are connected to the second 74HC4051 in the same way. + */ + +static void td3116_latch_value(struct bttv *btv, u32 value) +{ + gpio_bits((1<<18) | 0xff, value); + gpio_bits((1<<18) | 0xff, (1<<18) | value); + udelay(1); + gpio_bits((1<<18) | 0xff, value); +} + +static void td3116_muxsel(struct bttv *btv, unsigned int input) +{ + u32 value; + u32 highbit; + + highbit = (input & 0x8) >> 3 ; + + /* Disable outputs and set value in the mux */ + value = 0x11; /* Disable outputs */ + value |= ((input & 0x7) << 1) << (4 * highbit); + td3116_latch_value(btv, value); + + /* Enable the correct output */ + value &= ~0x11; + value |= ((highbit ^ 0x1) << 4) | highbit; + td3116_latch_value(btv, value); +} + /* ----------------------------------------------------------------------- */ static void bttv_reset_audio(struct bttv *btv) diff --git a/drivers/media/video/bt8xx/bttv.h b/drivers/media/video/bt8xx/bttv.h index 4db8b7d25da6..c5171619ac79 100644 --- a/drivers/media/video/bt8xx/bttv.h +++ b/drivers/media/video/bt8xx/bttv.h @@ -183,6 +183,7 @@ #define BTTV_BOARD_GEOVISION_GV800S 0x9d #define BTTV_BOARD_GEOVISION_GV800S_SL 0x9e #define BTTV_BOARD_PV183 0x9f +#define BTTV_BOARD_TVT_TD3116 0xa0 /* more card-specific defines */ |