/* * Driver for simple i2c audio chips. * * Copyright (c) 2000 Gerd Knorr * based on code by: * Eric Sandeen ([email protected]) * Steve VanDeBogart ([email protected]) * Greg Alexander ([email protected]) * * For the TDA9875 part: * Copyright (c) 2000 Guillaume Delvit based on Gerd Knorr source * and Eric Sandeen * * Copyright(c) 2005-2008 Mauro Carvalho Chehab * - Some cleanups, code fixes, etc * - Convert it to V4L2 API * * This code is placed under the terms of the GNU General Public License * * OPTIONS: * debug - set to 1 if you'd like to see debug messages * */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/string.h> #include <linux/timer.h> #include <linux/delay.h> #include <linux/errno.h> #include <linux/slab.h> #include <linux/videodev2.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/kthread.h> #include <linux/freezer.h> #include <media/i2c/tvaudio.h> #include <media/v4l2-device.h> #include <media/v4l2-ctrls.h> /* ---------------------------------------------------------------------- */ /* insmod args */ static int debug; /* insmod parameter */ module_param(debug, int, 0644); MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; #define UNSET … /* ---------------------------------------------------------------------- */ /* our structs */ #define MAXREGS … struct CHIPSTATE; getvalue; checkit; initialize; getrxsubchans; setaudmode; /* i2c command */ audiocmd; /* chip description */ struct CHIPDESC { … }; /* current state of the chip */ struct CHIPSTATE { … }; static inline struct CHIPSTATE *to_state(struct v4l2_subdev *sd) { … } static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) { … } /* ---------------------------------------------------------------------- */ /* i2c I/O functions */ static int chip_write(struct CHIPSTATE *chip, int subaddr, int val) { … } static int chip_write_masked(struct CHIPSTATE *chip, int subaddr, int val, int mask) { … } static int chip_read(struct CHIPSTATE *chip) { … } static int chip_read2(struct CHIPSTATE *chip, int subaddr) { … } static int chip_cmd(struct CHIPSTATE *chip, char *name, audiocmd *cmd) { … } /* ---------------------------------------------------------------------- */ /* kernel thread for doing i2c stuff asyncronly * right now it is used only to check the audio mode (mono/stereo/whatever) * some time after switching to another TV channel, then turn on stereo * if available, ... */ static void chip_thread_wake(struct timer_list *t) { … } static int chip_thread(void *data) { … } /* ---------------------------------------------------------------------- */ /* audio chip descriptions - defines+functions for tda9840 */ #define TDA9840_SW … #define TDA9840_LVADJ … #define TDA9840_STADJ … #define TDA9840_TEST … #define TDA9840_MONO … #define TDA9840_STEREO … #define TDA9840_DUALA … #define TDA9840_DUALB … #define TDA9840_DUALAB … #define TDA9840_DUALBA … #define TDA9840_EXTERNAL … #define TDA9840_DS_DUAL … #define TDA9840_ST_STEREO … #define TDA9840_PONRES … #define TDA9840_TEST_INT1SN … #define TDA9840_TEST_INTFU … static int tda9840_getrxsubchans(struct CHIPSTATE *chip) { … } static void tda9840_setaudmode(struct CHIPSTATE *chip, int mode) { … } static int tda9840_checkit(struct CHIPSTATE *chip) { … } /* ---------------------------------------------------------------------- */ /* audio chip descriptions - defines+functions for tda985x */ /* subaddresses for TDA9855 */ #define TDA9855_VR … #define TDA9855_VL … #define TDA9855_BA … #define TDA9855_TR … #define TDA9855_SW … /* subaddresses for TDA9850 */ #define TDA9850_C4 … /* subaddesses for both chips */ #define TDA985x_C5 … #define TDA985x_C6 … #define TDA985x_C7 … #define TDA985x_A1 … #define TDA985x_A2 … #define TDA985x_A3 … /* Masks for bits in TDA9855 subaddresses */ /* 0x00 - VR in TDA9855 */ /* 0x01 - VL in TDA9855 */ /* lower 7 bits control gain from -71dB (0x28) to 16dB (0x7f) * in 1dB steps - mute is 0x27 */ /* 0x02 - BA in TDA9855 */ /* lower 5 bits control bass gain from -12dB (0x06) to 16.5dB (0x19) * in .5dB steps - 0 is 0x0E */ /* 0x03 - TR in TDA9855 */ /* 4 bits << 1 control treble gain from -12dB (0x3) to 12dB (0xb) * in 3dB steps - 0 is 0x7 */ /* Masks for bits in both chips' subaddresses */ /* 0x04 - SW in TDA9855, C4/Control 1 in TDA9850 */ /* Unique to TDA9855: */ /* 4 bits << 2 control subwoofer/surround gain from -14db (0x1) to 14db (0xf) * in 3dB steps - mute is 0x0 */ /* Unique to TDA9850: */ /* lower 4 bits control stereo noise threshold, over which stereo turns off * set to values of 0x00 through 0x0f for Ster1 through Ster16 */ /* 0x05 - C5 - Control 1 in TDA9855 , Control 2 in TDA9850*/ /* Unique to TDA9855: */ #define TDA9855_MUTE … #define TDA9855_AVL … #define TDA9855_LOUD … #define TDA9855_SUR … /* Bits 0 to 3 select various combinations * of line in and line out, only the * interesting ones are defined */ #define TDA9855_EXT … #define TDA9855_INT … /* Unique to TDA9850: */ /* lower 4 bits control SAP noise threshold, over which SAP turns off * set to values of 0x00 through 0x0f for SAP1 through SAP16 */ /* 0x06 - C6 - Control 2 in TDA9855, Control 3 in TDA9850 */ /* Common to TDA9855 and TDA9850: */ #define TDA985x_SAP … #define TDA985x_MONOSAP … #define TDA985x_STEREO … #define TDA985x_MONO … #define TDA985x_LMU … /* Unique to TDA9855: */ #define TDA9855_TZCM … #define TDA9855_VZCM … #define TDA9855_LINEAR … #define TDA9855_PSEUDO … #define TDA9855_SPAT_30 … #define TDA9855_SPAT_50 … #define TDA9855_E_MONO … /* 0x07 - C7 - Control 3 in TDA9855, Control 4 in TDA9850 */ /* Common to both TDA9855 and TDA9850: */ /* lower 4 bits control input gain from -3.5dB (0x0) to 4dB (0xF) * in .5dB steps - 0dB is 0x7 */ /* 0x08, 0x09 - A1 and A2 (read/write) */ /* Common to both TDA9855 and TDA9850: */ /* lower 5 bites are wideband and spectral expander alignment * from 0x00 to 0x1f - nominal at 0x0f and 0x10 (read/write) */ #define TDA985x_STP … #define TDA985x_SAPP … #define TDA985x_STS … /* 0x0a - A3 */ /* Common to both TDA9855 and TDA9850: */ /* lower 3 bits control timing current for alignment: -30% (0x0), -20% (0x1), * -10% (0x2), nominal (0x3), +10% (0x6), +20% (0x5), +30% (0x4) */ #define TDA985x_ADJ … static int tda9855_volume(int val) { … } static int tda9855_bass(int val) { … } static int tda9855_treble(int val) { … } static int tda985x_getrxsubchans(struct CHIPSTATE *chip) { … } static void tda985x_setaudmode(struct CHIPSTATE *chip, int mode) { … } /* ---------------------------------------------------------------------- */ /* audio chip descriptions - defines+functions for tda9873h */ /* Subaddresses for TDA9873H */ #define TDA9873_SW … #define TDA9873_AD … #define TDA9873_PT … /* Subaddress 0x00: Switching Data * B7..B0: * * B1, B0: Input source selection * 0, 0 internal * 1, 0 external stereo * 0, 1 external mono */ #define TDA9873_INP_MASK … #define TDA9873_INTERNAL … #define TDA9873_EXT_STEREO … #define TDA9873_EXT_MONO … /* B3, B2: output signal select * B4 : transmission mode * 0, 0, 1 Mono * 1, 0, 0 Stereo * 1, 1, 1 Stereo (reversed channel) * 0, 0, 0 Dual AB * 0, 0, 1 Dual AA * 0, 1, 0 Dual BB * 0, 1, 1 Dual BA */ #define TDA9873_TR_MASK … #define TDA9873_TR_MONO … #define TDA9873_TR_STEREO … #define TDA9873_TR_REVERSE … #define TDA9873_TR_DUALA … #define TDA9873_TR_DUALB … #define TDA9873_TR_DUALAB … /* output level controls * B5: output level switch (0 = reduced gain, 1 = normal gain) * B6: mute (1 = muted) * B7: auto-mute (1 = auto-mute enabled) */ #define TDA9873_GAIN_NORMAL … #define TDA9873_MUTE … #define TDA9873_AUTOMUTE … /* Subaddress 0x01: Adjust/standard */ /* Lower 4 bits (C3..C0) control stereo adjustment on R channel (-0.6 - +0.7 dB) * Recommended value is +0 dB */ #define TDA9873_STEREO_ADJ … /* Bits C6..C4 control FM stantard * C6, C5, C4 * 0, 0, 0 B/G (PAL FM) * 0, 0, 1 M * 0, 1, 0 D/K(1) * 0, 1, 1 D/K(2) * 1, 0, 0 D/K(3) * 1, 0, 1 I */ #define TDA9873_BG … #define TDA9873_M … #define TDA9873_DK1 … #define TDA9873_DK2 … #define TDA9873_DK3 … #define TDA9873_I … /* C7 controls identification response time (1=fast/0=normal) */ #define TDA9873_IDR_NORM … #define TDA9873_IDR_FAST … /* Subaddress 0x02: Port data */ /* E1, E0 free programmable ports P1/P2 0, 0 both ports low 0, 1 P1 high 1, 0 P2 high 1, 1 both ports high */ #define TDA9873_PORTS … /* E2: test port */ #define TDA9873_TST_PORT … /* E5..E3 control mono output channel (together with transmission mode bit B4) * * E5 E4 E3 B4 OUTM * 0 0 0 0 mono * 0 0 1 0 DUAL B * 0 1 0 1 mono (from stereo decoder) */ #define TDA9873_MOUT_MONO … #define TDA9873_MOUT_FMONO … #define TDA9873_MOUT_DUALA … #define TDA9873_MOUT_DUALB … #define TDA9873_MOUT_ST … #define TDA9873_MOUT_EXTM … #define TDA9873_MOUT_EXTL … #define TDA9873_MOUT_EXTR … #define TDA9873_MOUT_EXTLR … #define TDA9873_MOUT_MUTE … /* Status bits: (chip read) */ #define TDA9873_PONR … #define TDA9873_STEREO … #define TDA9873_DUAL … static int tda9873_getrxsubchans(struct CHIPSTATE *chip) { … } static void tda9873_setaudmode(struct CHIPSTATE *chip, int mode) { … } static int tda9873_checkit(struct CHIPSTATE *chip) { … } /* ---------------------------------------------------------------------- */ /* audio chip description - defines+functions for tda9874h and tda9874a */ /* Dariusz Kowalewski <[email protected]> */ /* Subaddresses for TDA9874H and TDA9874A (slave rx) */ #define TDA9874A_AGCGR … #define TDA9874A_GCONR … #define TDA9874A_MSR … #define TDA9874A_C1FRA … #define TDA9874A_C1FRB … #define TDA9874A_C1FRC … #define TDA9874A_C2FRA … #define TDA9874A_C2FRB … #define TDA9874A_C2FRC … #define TDA9874A_DCR … #define TDA9874A_FMER … #define TDA9874A_FMMR … #define TDA9874A_C1OLAR … #define TDA9874A_C2OLAR … #define TDA9874A_NCONR … #define TDA9874A_NOLAR … #define TDA9874A_NLELR … #define TDA9874A_NUELR … #define TDA9874A_AMCONR … #define TDA9874A_SDACOSR … #define TDA9874A_AOSR … #define TDA9874A_DAICONR … #define TDA9874A_I2SOSR … #define TDA9874A_I2SOLAR … #define TDA9874A_MDACOSR … #define TDA9874A_ESP … /* Subaddresses for TDA9874H and TDA9874A (slave tx) */ #define TDA9874A_DSR … #define TDA9874A_NSR … #define TDA9874A_NECR … #define TDA9874A_DR1 … #define TDA9874A_DR2 … #define TDA9874A_LLRA … #define TDA9874A_LLRB … #define TDA9874A_SIFLR … #define TDA9874A_TR2 … #define TDA9874A_TR1 … #define TDA9874A_DIC … #define TDA9874A_SIC … static int tda9874a_mode = …; /* 0: A2, 1: NICAM */ static int tda9874a_GCONR = …; /* default config. input pin: SIFSEL=0 */ static int tda9874a_NCONR = …; /* default NICAM config.: AMSEL=0,AMUTE=1 */ static int tda9874a_ESP = …; /* default standard: NICAM D/K */ static int tda9874a_dic = …; /* device id. code */ /* insmod options for tda9874a */ static unsigned int tda9874a_SIF = …; static unsigned int tda9874a_AMSEL = …; static unsigned int tda9874a_STD = …; module_param(tda9874a_SIF, int, 0444); module_param(tda9874a_AMSEL, int, 0444); module_param(tda9874a_STD, int, 0444); /* * initialization table for tda9874 decoder: * - carrier 1 freq. registers (3 bytes) * - carrier 2 freq. registers (3 bytes) * - demudulator config register * - FM de-emphasis register (slow identification mode) * Note: frequency registers must be written in single i2c transfer. */ static struct tda9874a_MODES { … } tda9874a_modelist[9] = …; static int tda9874a_setup(struct CHIPSTATE *chip) { … } static int tda9874a_getrxsubchans(struct CHIPSTATE *chip) { … } static void tda9874a_setaudmode(struct CHIPSTATE *chip, int mode) { … } static int tda9874a_checkit(struct CHIPSTATE *chip) { … } static int tda9874a_initialize(struct CHIPSTATE *chip) { … } /* ---------------------------------------------------------------------- */ /* 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 … #define TDA9875_CFG … #define TDA9875_DACOS … #define TDA9875_LOSR … #define TDA9875_CH1V … #define TDA9875_CH2V … #define TDA9875_SC1 … #define TDA9875_SC2 … #define TDA9875_ADCIS … #define TDA9875_AER … #define TDA9875_MCS … #define TDA9875_MVL … #define TDA9875_MVR … #define TDA9875_MBA … #define TDA9875_MTR … #define TDA9875_ACS … #define TDA9875_AVL … #define TDA9875_AVR … #define TDA9875_ABA … #define TDA9875_ATR … #define TDA9875_MSR … #define TDA9875_C1MSB … #define TDA9875_C1MIB … #define TDA9875_C1LSB … #define TDA9875_C2MSB … #define TDA9875_C2MIB … #define TDA9875_C2LSB … #define TDA9875_DCR … #define TDA9875_DEEM … #define TDA9875_FMAT … /* values */ #define TDA9875_MUTE_ON … #define TDA9875_MUTE_OFF … static int tda9875_initialize(struct CHIPSTATE *chip) { … } static int tda9875_volume(int val) { … } static int tda9875_bass(int val) { … } static int tda9875_treble(int val) { … } /* ----------------------------------------------------------------------- */ /* *********************** * * i2c interface functions * * *********************** */ static int tda9875_checkit(struct CHIPSTATE *chip) { … } /* ---------------------------------------------------------------------- */ /* audio chip descriptions - defines+functions for tea6420 */ #define TEA6300_VL … #define TEA6300_VR … #define TEA6300_BA … #define TEA6300_TR … #define TEA6300_FA … #define TEA6300_S … /* values for those registers: */ #define TEA6300_S_SA … #define TEA6300_S_SB … #define TEA6300_S_SC … #define TEA6300_S_GMU … #define TEA6320_V … #define TEA6320_FFR … #define TEA6320_FFL … #define TEA6320_FRR … #define TEA6320_FRL … #define TEA6320_BA … #define TEA6320_TR … #define TEA6320_S … /* values for those registers: */ #define TEA6320_S_SA … #define TEA6320_S_SB … #define TEA6320_S_SC … #define TEA6320_S_SD … #define TEA6320_S_GMU … #define TEA6420_S_SA … #define TEA6420_S_SB … #define TEA6420_S_SC … #define TEA6420_S_SD … #define TEA6420_S_SE … #define TEA6420_S_GMU … static int tea6300_shift10(int val) { … } static int tea6300_shift12(int val) { … } /* Assumes 16bit input (values 0x3f to 0x0c are unique, values less than */ /* 0x0c mirror those immediately higher) */ static int tea6320_volume(int val) { … } static int tea6320_shift11(int val) { … } static int tea6320_initialize(struct CHIPSTATE * chip) { … } /* ---------------------------------------------------------------------- */ /* audio chip descriptions - defines+functions for tda8425 */ #define TDA8425_VL … #define TDA8425_VR … #define TDA8425_BA … #define TDA8425_TR … #define TDA8425_S1 … /* values for those registers: */ #define TDA8425_S1_OFF … #define TDA8425_S1_CH1 … #define TDA8425_S1_CH2 … #define TDA8425_S1_MU … #define TDA8425_S1_STEREO … #define TDA8425_S1_STEREO_SPATIAL … #define TDA8425_S1_STEREO_LINEAR … #define TDA8425_S1_STEREO_PSEUDO … #define TDA8425_S1_STEREO_MONO … #define TDA8425_S1_ML … #define TDA8425_S1_ML_SOUND_A … #define TDA8425_S1_ML_SOUND_B … #define TDA8425_S1_ML_STEREO … #define TDA8425_S1_IS … static int tda8425_shift10(int val) { … } static int tda8425_shift12(int val) { … } static void tda8425_setaudmode(struct CHIPSTATE *chip, int mode) { … } /* ---------------------------------------------------------------------- */ /* audio chip descriptions - defines+functions for pic16c54 (PV951) */ /* the registers of 16C54, I2C sub address. */ #define PIC16C54_REG_KEY_CODE … #define PIC16C54_REG_MISC … /* bit definition of the RESET register, I2C data. */ #define PIC16C54_MISC_RESET_REMOTE_CTL … /* code of remote controller */ #define PIC16C54_MISC_MTS_MAIN … #define PIC16C54_MISC_MTS_SAP … #define PIC16C54_MISC_MTS_BOTH … #define PIC16C54_MISC_SND_MUTE … #define PIC16C54_MISC_SND_NOTMUTE … #define PIC16C54_MISC_SWITCH_TUNER … #define PIC16C54_MISC_SWITCH_LINE … /* ---------------------------------------------------------------------- */ /* audio chip descriptions - defines+functions for TA8874Z */ /* write 1st byte */ #define TA8874Z_LED_STE … #define TA8874Z_LED_BIL … #define TA8874Z_LED_EXT … #define TA8874Z_MONO_SET … #define TA8874Z_MUTE … #define TA8874Z_F_MONO … #define TA8874Z_MODE_SUB … #define TA8874Z_MODE_MAIN … /* write 2nd byte */ /*#define TA8874Z_TI 0x80 */ /* test mode */ #define TA8874Z_SEPARATION … #define TA8874Z_SEPARATION_DEFAULT … /* read */ #define TA8874Z_B1 … #define TA8874Z_B0 … #define TA8874Z_CHAG_FLAG … /* * B1 B0 * mono L H * stereo L L * BIL H L */ static int ta8874z_getrxsubchans(struct CHIPSTATE *chip) { … } static audiocmd ta8874z_stereo = …; static audiocmd ta8874z_mono = …; static audiocmd ta8874z_main = …; static audiocmd ta8874z_sub = …; static audiocmd ta8874z_both = …; static void ta8874z_setaudmode(struct CHIPSTATE *chip, int mode) { … } static int ta8874z_checkit(struct CHIPSTATE *chip) { … } /* ---------------------------------------------------------------------- */ /* audio chip descriptions - struct CHIPDESC */ /* insmod options to enable/disable individual audio chips */ static int tda8425 = …; static int tda9840 = …; static int tda9850 = …; static int tda9855 = …; static int tda9873 = …; static int tda9874a = …; static int tda9875 = …; static int tea6300; /* default 0 - address clash with msp34xx */ static int tea6320; /* default 0 - address clash with msp34xx */ static int tea6420 = …; static int pic16c54 = …; static int ta8874z; /* default 0 - address clash with tda9840 */ module_param(tda8425, int, 0444); module_param(tda9840, int, 0444); 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); module_param(pic16c54, int, 0444); module_param(ta8874z, int, 0444); static struct CHIPDESC chiplist[] = …; /* ---------------------------------------------------------------------- */ static int tvaudio_s_ctrl(struct v4l2_ctrl *ctrl) { … } /* ---------------------------------------------------------------------- */ /* video4linux interface */ static int tvaudio_s_radio(struct v4l2_subdev *sd) { … } static int tvaudio_s_routing(struct v4l2_subdev *sd, u32 input, u32 output, u32 config) { … } static int tvaudio_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *vt) { … } static int tvaudio_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) { … } static int tvaudio_s_std(struct v4l2_subdev *sd, v4l2_std_id std) { … } static int tvaudio_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *freq) { … } static int tvaudio_log_status(struct v4l2_subdev *sd) { … } /* ----------------------------------------------------------------------- */ static const struct v4l2_ctrl_ops tvaudio_ctrl_ops = …; static const struct v4l2_subdev_core_ops tvaudio_core_ops = …; static const struct v4l2_subdev_tuner_ops tvaudio_tuner_ops = …; static const struct v4l2_subdev_audio_ops tvaudio_audio_ops = …; static const struct v4l2_subdev_video_ops tvaudio_video_ops = …; static const struct v4l2_subdev_ops tvaudio_ops = …; /* ----------------------------------------------------------------------- */ /* i2c registration */ static int tvaudio_probe(struct i2c_client *client) { … } static void tvaudio_remove(struct i2c_client *client) { … } /* This driver supports many devices and the idea is to let the driver detect which device is present. So rather than listing all supported devices here, we pretend to support a single, fake device type. */ static const struct i2c_device_id tvaudio_id[] = …; MODULE_DEVICE_TABLE(i2c, tvaudio_id); static struct i2c_driver tvaudio_driver = …; module_i2c_driver(…) …;
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