diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/tvaudio.c | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c index faa9e3dd782f..8333efab8685 100644 --- a/drivers/media/video/tvaudio.c +++ b/drivers/media/video/tvaudio.c @@ -1047,6 +1047,116 @@ static int tda9874a_initialize(struct CHIPSTATE *chip) return 0; } +/* ---------------------------------------------------------------------- */ +/* audio chip description - defines+functions for tda9875 */ +/* The TDA9875 is made by Philips Semiconductor + * http://www.semiconductors.philips.com + * TDA9875: I2C-bus controlled DSP audio processor, FM demodulator + * + */ + +/* subaddresses for TDA9875 */ +#define TDA9875_MUT 0x12 /*General mute (value --> 0b11001100*/ +#define TDA9875_CFG 0x01 /* Config register (value --> 0b00000000 */ +#define TDA9875_DACOS 0x13 /*DAC i/o select (ADC) 0b0000100*/ +#define TDA9875_LOSR 0x16 /*Line output select regirter 0b0100 0001*/ + +#define TDA9875_CH1V 0x0c /*Channel 1 volume (mute)*/ +#define TDA9875_CH2V 0x0d /*Channel 2 volume (mute)*/ +#define TDA9875_SC1 0x14 /*SCART 1 in (mono)*/ +#define TDA9875_SC2 0x15 /*SCART 2 in (mono)*/ + +#define TDA9875_ADCIS 0x17 /*ADC input select (mono) 0b0110 000*/ +#define TDA9875_AER 0x19 /*Audio effect (AVL+Pseudo) 0b0000 0110*/ +#define TDA9875_MCS 0x18 /*Main channel select (DAC) 0b0000100*/ +#define TDA9875_MVL 0x1a /* Main volume gauche */ +#define TDA9875_MVR 0x1b /* Main volume droite */ +#define TDA9875_MBA 0x1d /* Main Basse */ +#define TDA9875_MTR 0x1e /* Main treble */ +#define TDA9875_ACS 0x1f /* Auxilary channel select (FM) 0b0000000*/ +#define TDA9875_AVL 0x20 /* Auxilary volume gauche */ +#define TDA9875_AVR 0x21 /* Auxilary volume droite */ +#define TDA9875_ABA 0x22 /* Auxilary Basse */ +#define TDA9875_ATR 0x23 /* Auxilary treble */ + +#define TDA9875_MSR 0x02 /* Monitor select register */ +#define TDA9875_C1MSB 0x03 /* Carrier 1 (FM) frequency register MSB */ +#define TDA9875_C1MIB 0x04 /* Carrier 1 (FM) frequency register (16-8]b */ +#define TDA9875_C1LSB 0x05 /* Carrier 1 (FM) frequency register LSB */ +#define TDA9875_C2MSB 0x06 /* Carrier 2 (nicam) frequency register MSB */ +#define TDA9875_C2MIB 0x07 /* Carrier 2 (nicam) frequency register (16-8]b */ +#define TDA9875_C2LSB 0x08 /* Carrier 2 (nicam) frequency register LSB */ +#define TDA9875_DCR 0x09 /* Demodulateur configuration regirter*/ +#define TDA9875_DEEM 0x0a /* FM de-emphasis regirter*/ +#define TDA9875_FMAT 0x0b /* FM Matrix regirter*/ + +/* values */ +#define TDA9875_MUTE_ON 0xff /* general mute */ +#define TDA9875_MUTE_OFF 0xcc /* general no mute */ + +static int tda9875_initialize(struct CHIPSTATE *chip) +{ + chip_write(chip, TDA9875_CFG, 0xd0); /*reg de config 0 (reset)*/ + chip_write(chip, TDA9875_MSR, 0x03); /* Monitor 0b00000XXX*/ + chip_write(chip, TDA9875_C1MSB, 0x00); /*Car1(FM) MSB XMHz*/ + chip_write(chip, TDA9875_C1MIB, 0x00); /*Car1(FM) MIB XMHz*/ + chip_write(chip, TDA9875_C1LSB, 0x00); /*Car1(FM) LSB XMHz*/ + chip_write(chip, TDA9875_C2MSB, 0x00); /*Car2(NICAM) MSB XMHz*/ + chip_write(chip, TDA9875_C2MIB, 0x00); /*Car2(NICAM) MIB XMHz*/ + chip_write(chip, TDA9875_C2LSB, 0x00); /*Car2(NICAM) LSB XMHz*/ + chip_write(chip, TDA9875_DCR, 0x00); /*Demod config 0x00*/ + chip_write(chip, TDA9875_DEEM, 0x44); /*DE-Emph 0b0100 0100*/ + chip_write(chip, TDA9875_FMAT, 0x00); /*FM Matrix reg 0x00*/ + chip_write(chip, TDA9875_SC1, 0x00); /* SCART 1 (SC1)*/ + chip_write(chip, TDA9875_SC2, 0x01); /* SCART 2 (sc2)*/ + + chip_write(chip, TDA9875_CH1V, 0x10); /* Channel volume 1 mute*/ + chip_write(chip, TDA9875_CH2V, 0x10); /* Channel volume 2 mute */ + chip_write(chip, TDA9875_DACOS, 0x02); /* sig DAC i/o(in:nicam)*/ + chip_write(chip, TDA9875_ADCIS, 0x6f); /* sig ADC input(in:mono)*/ + chip_write(chip, TDA9875_LOSR, 0x00); /* line out (in:mono)*/ + chip_write(chip, TDA9875_AER, 0x00); /*06 Effect (AVL+PSEUDO) */ + chip_write(chip, TDA9875_MCS, 0x44); /* Main ch select (DAC) */ + chip_write(chip, TDA9875_MVL, 0x03); /* Vol Main left 10dB */ + chip_write(chip, TDA9875_MVR, 0x03); /* Vol Main right 10dB*/ + chip_write(chip, TDA9875_MBA, 0x00); /* Main Bass Main 0dB*/ + chip_write(chip, TDA9875_MTR, 0x00); /* Main Treble Main 0dB*/ + chip_write(chip, TDA9875_ACS, 0x44); /* Aux chan select (dac)*/ + chip_write(chip, TDA9875_AVL, 0x00); /* Vol Aux left 0dB*/ + chip_write(chip, TDA9875_AVR, 0x00); /* Vol Aux right 0dB*/ + chip_write(chip, TDA9875_ABA, 0x00); /* Aux Bass Main 0dB*/ + chip_write(chip, TDA9875_ATR, 0x00); /* Aux Aigus Main 0dB*/ + + chip_write(chip, TDA9875_MUT, 0xcc); /* General mute */ + return 0; +} + +static int tda9875_volume(int val) { return (unsigned char)(val / 602 - 84); } +static int tda9875_bass(int val) { return (unsigned char)(max(-12, val / 2115 - 15)); } +static int tda9875_treble(int val) { return (unsigned char)(val / 2622 - 12); } + +/* ----------------------------------------------------------------------- */ + + +/* *********************** * + * i2c interface functions * + * *********************** */ + +static int tda9875_checkit(struct CHIPSTATE *chip) +{ + struct v4l2_subdev *sd = &chip->sd; + int dic, rev; + + dic = chip_read2(chip, 254); + rev = chip_read2(chip, 255); + + if (dic == 0 || dic == 2) { /* tda9875 and tda9875A */ + v4l2_info(sd, "found tda9875%s rev. %d.\n", + dic == 0 ? "" : "A", rev); + return 1; + } + return 0; +} /* ---------------------------------------------------------------------- */ /* audio chip descriptions - defines+functions for tea6420 */ @@ -1280,6 +1390,7 @@ static int tda9850 = 1; static int tda9855 = 1; static int tda9873 = 1; static int tda9874a = 1; +static int tda9875 = 1; static int tea6300; /* default 0 - address clash with msp34xx */ static int tea6320; /* default 0 - address clash with msp34xx */ static int tea6420 = 1; @@ -1292,6 +1403,7 @@ module_param(tda9850, int, 0444); module_param(tda9855, int, 0444); module_param(tda9873, int, 0444); module_param(tda9874a, int, 0444); +module_param(tda9875, int, 0444); module_param(tea6300, int, 0444); module_param(tea6320, int, 0444); module_param(tea6420, int, 0444); @@ -1349,6 +1461,26 @@ static struct CHIPDESC chiplist[] = { .setmode = tda9874a_setmode, }, { + .name = "tda9875", + .insmodopt = &tda9875, + .addr_lo = I2C_ADDR_TDA9875 >> 1, + .addr_hi = I2C_ADDR_TDA9875 >> 1, + .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE, + + /* callbacks */ + .initialize = tda9875_initialize, + .checkit = tda9875_checkit, + .volfunc = tda9875_volume, + .bassfunc = tda9875_bass, + .treblefunc = tda9875_treble, + .leftreg = TDA9875_MVL, + .rightreg = TDA9875_MVR, + .bassreg = TDA9875_MBA, + .treblereg = TDA9875_MTR, + .leftinit = 58880, + .rightinit = 58880, + }, + { .name = "tda9850", .insmodopt = &tda9850, .addr_lo = I2C_ADDR_TDA985x_L >> 1, |