| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Hans Verkuil | 2612 | 28.85% | 21 | 24.42% |
| Linus Torvalds (pre-git) | 2285 | 25.24% | 1 | 1.16% |
| Linus Torvalds | 1063 | 11.74% | 4 | 4.65% |
| Gerd Hoffmann | 836 | 9.23% | 1 | 1.16% |
| Mauro Carvalho Chehab | 665 | 7.34% | 20 | 23.26% |
| Gerd Knorr | 480 | 5.30% | 5 | 5.81% |
| Andrew Morton | 414 | 4.57% | 3 | 3.49% |
| Daniel Glöckner | 342 | 3.78% | 8 | 9.30% |
| Art Haas | 207 | 2.29% | 1 | 1.16% |
| Jean Delvare | 27 | 0.30% | 3 | 3.49% |
| Laurent Pinchart | 25 | 0.28% | 2 | 2.33% |
| Shubhrajyoti Datta | 21 | 0.23% | 1 | 1.16% |
| Cédric Le Goater | 19 | 0.21% | 1 | 1.16% |
| Kees Cook | 19 | 0.21% | 2 | 2.33% |
| Adrian Bunk | 11 | 0.12% | 1 | 1.16% |
| Nigel Cunningham | 6 | 0.07% | 2 | 2.33% |
| Lucas De Marchi | 5 | 0.06% | 1 | 1.16% |
| Douglas Schilling Landgraf | 3 | 0.03% | 1 | 1.16% |
| Rafael J. Wysocki | 3 | 0.03% | 1 | 1.16% |
| Michael Ira Krufky | 2 | 0.02% | 1 | 1.16% |
| Greg Kroah-Hartman | 2 | 0.02% | 1 | 1.16% |
| Axel Lin | 2 | 0.02% | 1 | 1.16% |
| Roel Kluin | 2 | 0.02% | 1 | 1.16% |
| Julia Lawall | 1 | 0.01% | 1 | 1.16% |
| Vitaly Wool | 1 | 0.01% | 1 | 1.16% |
| Arjan van de Ven | 1 | 0.01% | 1 | 1.16% |
| Total | 9054 | 86 |
/* * Driver for simple i2c audio chips. * * Copyright (c) 2000 Gerd Knorr * based on code by: * Eric Sandeen (eric_sandeen@bigfoot.com) * Steve VanDeBogart (vandebo@uclink.berkeley.edu) * Greg Alexander (galexand@acm.org) * * 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("device driver for various i2c TV sound decoder / audiomux chips"); MODULE_AUTHOR("Eric Sandeen, Steve VanDeBogart, Greg Alexander, Gerd Knorr"); MODULE_LICENSE("GPL"); #define UNSET (-1U) /* ---------------------------------------------------------------------- */ /* our structs */ #define MAXREGS 256 struct CHIPSTATE; typedef int (*getvalue)(int); typedef int (*checkit)(struct CHIPSTATE*); typedef int (*initialize)(struct CHIPSTATE*); typedef int (*getrxsubchans)(struct CHIPSTATE *); typedef void (*setaudmode)(struct CHIPSTATE*, int mode); /* i2c command */ typedef struct AUDIOCMD { int count; /* # of bytes to send */ unsigned char bytes[MAXREGS+1]; /* addr, data, data, ... */ } audiocmd; /* chip description */ struct CHIPDESC { char *name; /* chip name */ int addr_lo, addr_hi; /* i2c address range */ int registers; /* # of registers */ int *insmodopt; checkit checkit; initialize initialize; int flags; #define CHIP_HAS_VOLUME 1 #define CHIP_HAS_BASSTREBLE 2 #define CHIP_HAS_INPUTSEL 4 #define CHIP_NEED_CHECKMODE 8 /* various i2c command sequences */ audiocmd init; /* which register has which value */ int leftreg, rightreg, treblereg, bassreg; /* initialize with (defaults to 65535/32768/32768 */ int volinit, trebleinit, bassinit; /* functions to convert the values (v4l -> chip) */ getvalue volfunc, treblefunc, bassfunc; /* get/set mode */ getrxsubchans getrxsubchans; setaudmode setaudmode; /* input switch register + values for v4l inputs */ int inputreg; int inputmap[4]; int inputmute; int inputmask; }; /* current state of the chip */ struct CHIPSTATE { struct v4l2_subdev sd; struct v4l2_ctrl_handler hdl; struct { /* volume/balance cluster */ struct v4l2_ctrl *volume; struct v4l2_ctrl *balance; }; /* chip-specific description - should point to an entry at CHIPDESC table */ struct CHIPDESC *desc; /* shadow register set */ audiocmd shadow; /* current settings */ u16 muted; int prevmode; int radio; int input; /* thread */ struct task_struct *thread; struct timer_list wt; int audmode; }; static inline struct CHIPSTATE *to_state(struct v4l2_subdev *sd) { return container_of(sd, struct CHIPSTATE, sd); } static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) { return &container_of(ctrl->handler, struct CHIPSTATE, hdl)->sd; } /* ---------------------------------------------------------------------- */ /* i2c I/O functions */ static int chip_write(struct CHIPSTATE *chip, int subaddr, int val) { struct v4l2_subdev *sd = &chip->sd; struct i2c_client *c = v4l2_get_subdevdata(sd); unsigned char buffer[2]; int rc; if (subaddr < 0) { v4l2_dbg(1, debug, sd, "chip_write: 0x%x\n", val); chip->shadow.bytes[1] = val; buffer[0] = val; rc = i2c_master_send(c, buffer, 1); if (rc != 1) { v4l2_warn(sd, "I/O error (write 0x%x)\n", val); if (rc < 0) return rc; return -EIO; } } else { if (subaddr + 1 >= ARRAY_SIZE(chip->shadow.bytes)) { v4l2_info(sd, "Tried to access a non-existent register: %d\n", subaddr); return -EINVAL; } v4l2_dbg(1, debug, sd, "chip_write: reg%d=0x%x\n", subaddr, val); chip->shadow.bytes[subaddr+1] = val; buffer[0] = subaddr; buffer[1] = val; rc = i2c_master_send(c, buffer, 2); if (rc != 2) { v4l2_warn(sd, "I/O error (write reg%d=0x%x)\n", subaddr, val); if (rc < 0) return rc; return -EIO; } } return 0; } static int chip_write_masked(struct CHIPSTATE *chip, int subaddr, int val, int mask) { struct v4l2_subdev *sd = &chip->sd; if (mask != 0) { if (subaddr < 0) { val = (chip->shadow.bytes[1] & ~mask) | (val & mask); } else { if (subaddr + 1 >= ARRAY_SIZE(chip->shadow.bytes)) { v4l2_info(sd, "Tried to access a non-existent register: %d\n", subaddr); return -EINVAL; } val = (chip->shadow.bytes[subaddr+1] & ~mask) | (val & mask); } } return chip_write(chip, subaddr, val); } static int chip_read(struct CHIPSTATE *chip) { struct v4l2_subdev *sd = &chip->sd; struct i2c_client *c = v4l2_get_subdevdata(sd); unsigned char buffer; int rc; rc = i2c_master_recv(c, &buffer, 1); if (rc != 1) { v4l2_warn(sd, "I/O error (read)\n"); if (rc < 0) return rc; return -EIO; } v4l2_dbg(1, debug, sd, "chip_read: 0x%x\n", buffer); return buffer; } static int chip_read2(struct CHIPSTATE *chip, int subaddr) { struct v4l2_subdev *sd = &chip->sd; struct i2c_client *c = v4l2_get_subdevdata(sd); int rc; unsigned char write[1]; unsigned char read[1]; struct i2c_msg msgs[2] = { { .addr = c->addr, .len = 1, .buf = write }, { .addr = c->addr, .flags = I2C_M_RD, .len = 1, .buf = read } }; write[0] = subaddr; rc = i2c_transfer(c->adapter, msgs, 2); if (rc != 2) { v4l2_warn(sd, "I/O error (read2)\n"); if (rc < 0) return rc; return -EIO; } v4l2_dbg(1, debug, sd, "chip_read2: reg%d=0x%x\n", subaddr, read[0]); return read[0]; } static int chip_cmd(struct CHIPSTATE *chip, char *name, audiocmd *cmd) { struct v4l2_subdev *sd = &chip->sd; struct i2c_client *c = v4l2_get_subdevdata(sd); int i, rc; if (0 == cmd->count) return 0; if (cmd->count + cmd->bytes[0] - 1 >= ARRAY_SIZE(chip->shadow.bytes)) { v4l2_info(sd, "Tried to access a non-existent register range: %d to %d\n", cmd->bytes[0] + 1, cmd->bytes[0] + cmd->count - 1); return -EINVAL; } /* FIXME: it seems that the shadow bytes are wrong below !*/ /* update our shadow register set; print bytes if (debug > 0) */ v4l2_dbg(1, debug, sd, "chip_cmd(%s): reg=%d, data:", name, cmd->bytes[0]); for (i = 1; i < cmd->count; i++) { if (debug) printk(KERN_CONT " 0x%x", cmd->bytes[i]); chip->shadow.bytes[i+cmd->bytes[0]] = cmd->bytes[i]; } if (debug) printk(KERN_CONT "\n"); /* send data to the chip */ rc = i2c_master_send(c, cmd->bytes, cmd->count); if (rc != cmd->count) { v4l2_warn(sd, "I/O error (%s)\n", name); if (rc < 0) return rc; return -EIO; } return 0; } /* ---------------------------------------------------------------------- */ /* 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) { struct CHIPSTATE *chip = from_timer(chip, t, wt); wake_up_process(chip->thread); } static int chip_thread(void *data) { struct CHIPSTATE *chip = data; struct CHIPDESC *desc = chip->desc; struct v4l2_subdev *sd = &chip->sd; int mode, selected; v4l2_dbg(1, debug, sd, "thread started\n"); set_freezable(); for (;;) { set_current_state(TASK_INTERRUPTIBLE); if (!kthread_should_stop()) schedule(); set_current_state(TASK_RUNNING); try_to_freeze(); if (kthread_should_stop()) break; v4l2_dbg(1, debug, sd, "thread wakeup\n"); /* don't do anything for radio */ if (chip->radio) continue; /* have a look what's going on */ mode = desc->getrxsubchans(chip); if (mode == chip->prevmode) continue; /* chip detected a new audio mode - set it */ v4l2_dbg(1, debug, sd, "thread checkmode\n"); chip->prevmode = mode; selected = V4L2_TUNER_MODE_MONO; switch (chip->audmode) { case V4L2_TUNER_MODE_MONO: if (mode & V4L2_TUNER_SUB_LANG1) selected = V4L2_TUNER_MODE_LANG1; break; case V4L2_TUNER_MODE_STEREO: case V4L2_TUNER_MODE_LANG1: if (mode & V4L2_TUNER_SUB_LANG1) selected = V4L2_TUNER_MODE_LANG1; else if (mode & V4L2_TUNER_SUB_STEREO) selected = V4L2_TUNER_MODE_STEREO; break; case V4L2_TUNER_MODE_LANG2: if (mode & V4L2_TUNER_SUB_LANG2) selected = V4L2_TUNER_MODE_LANG2; else if (mode & V4L2_TUNER_SUB_STEREO) selected = V4L2_TUNER_MODE_STEREO; break; case V4L2_TUNER_MODE_LANG1_LANG2: if (mode & V4L2_TUNER_SUB_LANG2) selected = V4L2_TUNER_MODE_LANG1_LANG2; else if (mode & V4L2_TUNER_SUB_STEREO) selected = V4L2_TUNER_MODE_STEREO; } desc->setaudmode(chip, selected); /* schedule next check */ mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000)); } v4l2_dbg(1, debug, sd, "thread exiting\n"); return 0; } /* ---------------------------------------------------------------------- */ /* audio chip descriptions - defines+functions for tda9840 */ #define TDA9840_SW 0x00 #define TDA9840_LVADJ 0x02 #define TDA9840_STADJ 0x03 #define TDA9840_TEST 0x04 #define TDA9840_MONO 0x10 #define TDA9840_STEREO 0x2a #define TDA9840_DUALA 0x12 #define TDA9840_DUALB 0x1e #define TDA9840_DUALAB 0x1a #define TDA9840_DUALBA 0x16 #define TDA9840_EXTERNAL 0x7a #define TDA9840_DS_DUAL 0x20 /* Dual sound identified */ #define TDA9840_ST_STEREO 0x40 /* Stereo sound identified */ #define TDA9840_PONRES 0x80 /* Power-on reset detected if = 1 */ #define TDA9840_TEST_INT1SN 0x1 /* Integration time 0.5s when set */ #define TDA9840_TEST_INTFU 0x02 /* Disables integrator function */ static int tda9840_getrxsubchans(struct CHIPSTATE *chip) { struct v4l2_subdev *sd = &chip->sd; int val, mode; mode = V4L2_TUNER_SUB_MONO; val = chip_read(chip); if (val < 0) return mode; if (val & TDA9840_DS_DUAL) mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; if (val & TDA9840_ST_STEREO) mode = V4L2_TUNER_SUB_STEREO; v4l2_dbg(1, debug, sd, "tda9840_getrxsubchans(): raw chip read: %d, return: %d\n", val, mode); return mode; } static void tda9840_setaudmode(struct CHIPSTATE *chip, int mode) { int update = 1; int t = chip->shadow.bytes[TDA9840_SW + 1] & ~0x7e; switch (mode) { case V4L2_TUNER_MODE_MONO: t |= TDA9840_MONO; break; case V4L2_TUNER_MODE_STEREO: t |= TDA9840_STEREO; break; case V4L2_TUNER_MODE_LANG1: t |= TDA9840_DUALA; break; case V4L2_TUNER_MODE_LANG2: t |= TDA9840_DUALB; break; case V4L2_TUNER_MODE_LANG1_LANG2: t |= TDA9840_DUALAB; break; default: update = 0; } if (update) chip_write(chip, TDA9840_SW, t); } static int tda9840_checkit(struct CHIPSTATE *chip) { int rc; rc = chip_read(chip); if (rc < 0) return 0; /* lower 5 bits should be 0 */ return ((rc & 0x1f) == 0) ? 1 : 0; } /* ---------------------------------------------------------------------- */ /* audio chip descriptions - defines+functions for tda985x */ /* subaddresses for TDA9855 */ #define TDA9855_VR 0x00 /* Volume, right */ #define TDA9855_VL 0x01 /* Volume, left */ #define TDA9855_BA 0x02 /* Bass */ #define TDA9855_TR 0x03 /* Treble */ #define TDA9855_SW 0x04 /* Subwoofer - not connected on DTV2000 */ /* subaddresses for TDA9850 */ #define TDA9850_C4 0x04 /* Control 1 for TDA9850 */ /* subaddesses for both chips */ #define TDA985x_C5 0x05 /* Control 2 for TDA9850, Control 1 for TDA9855 */ #define TDA985x_C6 0x06 /* Control 3 for TDA9850, Control 2 for TDA9855 */ #define TDA985x_C7 0x07 /* Control 4 for TDA9850, Control 3 for TDA9855 */ #define TDA985x_A1 0x08 /* Alignment 1 for both chips */ #define TDA985x_A2 0x09 /* Alignment 2 for both chips */ #define TDA985x_A3 0x0a /* Alignment 3 for both chips */ /* 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 1<<7 /* GMU, Mute at outputs */ #define TDA9855_AVL 1<<6 /* AVL, Automatic Volume Level */ #define TDA9855_LOUD 1<<5 /* Loudness, 1==off */ #define TDA9855_SUR 1<<3 /* Surround / Subwoofer 1==.5(L-R) 0==.5(L+R) */ /* Bits 0 to 3 select various combinations * of line in and line out, only the * interesting ones are defined */ #define TDA9855_EXT 1<<2 /* Selects inputs LIR and LIL. Pins 41 & 12 */ #define TDA9855_INT 0 /* Selects inputs LOR and LOL. (internal) */ /* 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 3<<6 /* Selects SAP output, mute if not received */ #define TDA985x_MONOSAP 2<<6 /* Selects Mono on left, SAP on right */ #define TDA985x_STEREO 1<<6 /* Selects Stereo output, mono if not received */ #define TDA985x_MONO 0 /* Forces Mono output */ #define TDA985x_LMU 1<<3 /* Mute (LOR/LOL for 9855, OUTL/OUTR for 9850) */ /* Unique to TDA9855: */ #define TDA9855_TZCM 1<<5 /* If set, don't mute till zero crossing */ #define TDA9855_VZCM 1<<4 /* If set, don't change volume till zero crossing*/ #define TDA9855_LINEAR 0 /* Linear Stereo */ #define TDA9855_PSEUDO 1 /* Pseudo Stereo */ #define TDA9855_SPAT_30 2 /* Spatial Stereo, 30% anti-phase crosstalk */ #define TDA9855_SPAT_50 3 /* Spatial Stereo, 52% anti-phase crosstalk */ #define TDA9855_E_MONO 7 /* Forced mono - mono select elseware, so useless*/ /* 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 1<<5 /* Stereo Pilot/detect (read-only) */ #define TDA985x_SAPP 1<<6 /* SAP Pilot/detect (read-only) */ #define TDA985x_STS 1<<7 /* Stereo trigger 1= <35mV 0= <30mV (write-only)*/ /* 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 1<<7 /* Stereo adjust on/off (wideband and spectral */ static int tda9855_volume(int val) { return val/0x2e8+0x27; } static int tda9855_bass(int val) { return val/0xccc+0x06; } static int tda9855_treble(int val) { return (val/0x1c71+0x3)<<1; } static int tda985x_getrxsubchans(struct CHIPSTATE *chip) { int mode, val; /* Add mono mode regardless of SAP and stereo */ /* Allows forced mono */ mode = V4L2_TUNER_SUB_MONO; val = chip_read(chip); if (val < 0) return mode; if (val & TDA985x_STP) mode = V4L2_TUNER_SUB_STEREO; if (val & TDA985x_SAPP) mode |= V4L2_TUNER_SUB_SAP; return mode; } static void tda985x_setaudmode(struct CHIPSTATE *chip, int mode) { int update = 1; int c6 = chip->shadow.bytes[TDA985x_C6+1] & 0x3f; switch (mode) { case V4L2_TUNER_MODE_MONO: c6 |= TDA985x_MONO; break; case V4L2_TUNER_MODE_STEREO: case V4L2_TUNER_MODE_LANG1: c6 |= TDA985x_STEREO; break; case V4L2_TUNER_MODE_SAP: c6 |= TDA985x_SAP; break; case V4L2_TUNER_MODE_LANG1_LANG2: c6 |= TDA985x_MONOSAP; break; default: update = 0; } if (update) chip_write(chip,TDA985x_C6,c6); } /* ---------------------------------------------------------------------- */ /* audio chip descriptions - defines+functions for tda9873h */ /* Subaddresses for TDA9873H */ #define TDA9873_SW 0x00 /* Switching */ #define TDA9873_AD 0x01 /* Adjust */ #define TDA9873_PT 0x02 /* Port */ /* 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 3 #define TDA9873_INTERNAL 0 #define TDA9873_EXT_STEREO 2 #define TDA9873_EXT_MONO 1 /* 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 (7 << 2) #define TDA9873_TR_MONO 4 #define TDA9873_TR_STEREO 1 << 4 #define TDA9873_TR_REVERSE ((1 << 3) | (1 << 2)) #define TDA9873_TR_DUALA 1 << 2 #define TDA9873_TR_DUALB 1 << 3 #define TDA9873_TR_DUALAB 0 /* 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 1 << 5 #define TDA9873_MUTE 1 << 6 #define TDA9873_AUTOMUTE 1 << 7 /* 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 0x06 /* 0dB gain */ /* 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 0 #define TDA9873_M 1 #define TDA9873_DK1 2 #define TDA9873_DK2 3 #define TDA9873_DK3 4 #define TDA9873_I 5 /* C7 controls identification response time (1=fast/0=normal) */ #define TDA9873_IDR_NORM 0 #define TDA9873_IDR_FAST 1 << 7 /* 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 3 /* E2: test port */ #define TDA9873_TST_PORT 1 << 2 /* 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 0 #define TDA9873_MOUT_FMONO 0 #define TDA9873_MOUT_DUALA 0 #define TDA9873_MOUT_DUALB 1 << 3 #define TDA9873_MOUT_ST 1 << 4 #define TDA9873_MOUT_EXTM ((1 << 4) | (1 << 3)) #define TDA9873_MOUT_EXTL 1 << 5 #define TDA9873_MOUT_EXTR ((1 << 5) | (1 << 3)) #define TDA9873_MOUT_EXTLR ((1 << 5) | (1 << 4)) #define TDA9873_MOUT_MUTE ((1 << 5) | (1 << 4) | (1 << 3)) /* Status bits: (chip read) */ #define TDA9873_PONR 0 /* Power-on reset detected if = 1 */ #define TDA9873_STEREO 2 /* Stereo sound is identified */ #define TDA9873_DUAL 4 /* Dual sound is identified */ static int tda9873_getrxsubchans(struct CHIPSTATE *chip) { struct v4l2_subdev *sd = &chip->sd; int val,mode; mode = V4L2_TUNER_SUB_MONO; val = chip_read(chip); if (val < 0) return mode; if (val & TDA9873_STEREO) mode = V4L2_TUNER_SUB_STEREO; if (val & TDA9873_DUAL) mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; v4l2_dbg(1, debug, sd, "tda9873_getrxsubchans(): raw chip read: %d, return: %d\n", val, mode); return mode; } static void tda9873_setaudmode(struct CHIPSTATE *chip, int mode) { struct v4l2_subdev *sd = &chip->sd; int sw_data = chip->shadow.bytes[TDA9873_SW+1] & ~ TDA9873_TR_MASK; /* int adj_data = chip->shadow.bytes[TDA9873_AD+1] ; */ if ((sw_data & TDA9873_INP_MASK) != TDA9873_INTERNAL) { v4l2_dbg(1, debug, sd, "tda9873_setaudmode(): external input\n"); return; } v4l2_dbg(1, debug, sd, "tda9873_setaudmode(): chip->shadow.bytes[%d] = %d\n", TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]); v4l2_dbg(1, debug, sd, "tda9873_setaudmode(): sw_data = %d\n", sw_data); switch (mode) { case V4L2_TUNER_MODE_MONO: sw_data |= TDA9873_TR_MONO; break; case V4L2_TUNER_MODE_STEREO: sw_data |= TDA9873_TR_STEREO; break; case V4L2_TUNER_MODE_LANG1: sw_data |= TDA9873_TR_DUALA; break; case V4L2_TUNER_MODE_LANG2: sw_data |= TDA9873_TR_DUALB; break; case V4L2_TUNER_MODE_LANG1_LANG2: sw_data |= TDA9873_TR_DUALAB; break; default: return; } chip_write(chip, TDA9873_SW, sw_data); v4l2_dbg(1, debug, sd, "tda9873_setaudmode(): req. mode %d; chip_write: %d\n", mode, sw_data); } static int tda9873_checkit(struct CHIPSTATE *chip) { int rc; rc = chip_read2(chip, 254); if (rc < 0) return 0; return (rc & ~0x1f) == 0x80; } /* ---------------------------------------------------------------------- */ /* audio chip description - defines+functions for tda9874h and tda9874a */ /* Dariusz Kowalewski <darekk@automex.pl> */ /* Subaddresses for TDA9874H and TDA9874A (slave rx) */ #define TDA9874A_AGCGR 0x00 /* AGC gain */ #define TDA9874A_GCONR 0x01 /* general config */ #define TDA9874A_MSR 0x02 /* monitor select */ #define TDA9874A_C1FRA 0x03 /* carrier 1 freq. */ #define TDA9874A_C1FRB 0x04 /* carrier 1 freq. */ #define TDA9874A_C1FRC 0x05 /* carrier 1 freq. */ #define TDA9874A_C2FRA 0x06 /* carrier 2 freq. */ #define TDA9874A_C2FRB 0x07 /* carrier 2 freq. */ #define TDA9874A_C2FRC 0x08 /* carrier 2 freq. */ #define TDA9874A_DCR 0x09 /* demodulator config */ #define TDA9874A_FMER 0x0a /* FM de-emphasis */ #define TDA9874A_FMMR 0x0b /* FM dematrix */ #define TDA9874A_C1OLAR 0x0c /* ch.1 output level adj. */ #define TDA9874A_C2OLAR 0x0d /* ch.2 output level adj. */ #define TDA9874A_NCONR 0x0e /* NICAM config */ #define TDA9874A_NOLAR 0x0f /* NICAM output level adj. */ #define TDA9874A_NLELR 0x10 /* NICAM lower error limit */ #define TDA9874A_NUELR 0x11 /* NICAM upper error limit */ #define TDA9874A_AMCONR 0x12 /* audio mute control */ #define TDA9874A_SDACOSR 0x13 /* stereo DAC output select */ #define TDA9874A_AOSR 0x14 /* analog output select */ #define TDA9874A_DAICONR 0x15 /* digital audio interface config */ #define TDA9874A_I2SOSR 0x16 /* I2S-bus output select */ #define TDA9874A_I2SOLAR 0x17 /* I2S-bus output level adj. */ #define TDA9874A_MDACOSR 0x18 /* mono DAC output select (tda9874a) */ #define TDA9874A_ESP 0xFF /* easy standard progr. (tda9874a) */ /* Subaddresses for TDA9874H and TDA9874A (slave tx) */ #define TDA9874A_DSR 0x00 /* device status */ #define TDA9874A_NSR 0x01 /* NICAM status */ #define TDA9874A_NECR 0x02 /* NICAM error count */ #define TDA9874A_DR1 0x03 /* add. data LSB */ #define TDA9874A_DR2 0x04 /* add. data MSB */ #define TDA9874A_LLRA 0x05 /* monitor level read-out LSB */ #define TDA9874A_LLRB 0x06 /* monitor level read-out MSB */ #define TDA9874A_SIFLR 0x07 /* SIF level */ #define TDA9874A_TR2 252 /* test reg. 2 */ #define TDA9874A_TR1 253 /* test reg. 1 */ #define TDA9874A_DIC 254 /* device id. code */ #define TDA9874A_SIC 255 /* software id. code */ static int tda9874a_mode = 1; /* 0: A2, 1: NICAM */ static int tda9874a_GCONR = 0xc0; /* default config. input pin: SIFSEL=0 */ static int tda9874a_NCONR = 0x01; /* default NICAM config.: AMSEL=0,AMUTE=1 */ static int tda9874a_ESP = 0x07; /* default standard: NICAM D/K */ static int tda9874a_dic = -1; /* device id. code */ /* insmod options for tda9874a */ static unsigned int tda9874a_SIF = UNSET; static unsigned int tda9874a_AMSEL = UNSET; static unsigned int tda9874a_STD = UNSET; 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 { char *name; audiocmd cmd; } tda9874a_modelist[9] = { { "A2, B/G", /* default */ { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x77,0xA0,0x00, 0x00,0x00 }} }, { "A2, M (Korea)", { 9, { TDA9874A_C1FRA, 0x5D,0xC0,0x00, 0x62,0x6A,0xAA, 0x20,0x22 }} }, { "A2, D/K (1)", { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x82,0x60,0x00, 0x00,0x00 }} }, { "A2, D/K (2)", { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x8C,0x75,0x55, 0x00,0x00 }} }, { "A2, D/K (3)", { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x77,0xA0,0x00, 0x00,0x00 }} }, { "NICAM, I", { 9, { TDA9874A_C1FRA, 0x7D,0x00,0x00, 0x88,0x8A,0xAA, 0x08,0x33 }} }, { "NICAM, B/G", { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x79,0xEA,0xAA, 0x08,0x33 }} }, { "NICAM, D/K", { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x08,0x33 }} }, { "NICAM, L", { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x09,0x33 }} } }; static int tda9874a_setup(struct CHIPSTATE *chip) { struct v4l2_subdev *sd = &chip->sd; chip_write(chip, TDA9874A_AGCGR, 0x00); /* 0 dB */ chip_write(chip, TDA9874A_GCONR, tda9874a_GCONR); chip_write(chip, TDA9874A_MSR, (tda9874a_mode) ? 0x03:0x02); if(tda9874a_dic == 0x11) { chip_write(chip, TDA9874A_FMMR, 0x80); } else { /* dic == 0x07 */ chip_cmd(chip,"tda9874_modelist",&tda9874a_modelist[tda9874a_STD].cmd); chip_write(chip, TDA9874A_FMMR, 0x00); } chip_write(chip, TDA9874A_C1OLAR, 0x00); /* 0 dB */ chip_write(chip, TDA9874A_C2OLAR, 0x00); /* 0 dB */ chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR); chip_write(chip, TDA9874A_NOLAR, 0x00); /* 0 dB */ /* Note: If signal quality is poor you may want to change NICAM */ /* error limit registers (NLELR and NUELR) to some greater values. */ /* Then the sound would remain stereo, but won't be so clear. */ chip_write(chip, TDA9874A_NLELR, 0x14); /* default */ chip_write(chip, TDA9874A_NUELR, 0x50); /* default */ if(tda9874a_dic == 0x11) { chip_write(chip, TDA9874A_AMCONR, 0xf9); chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80); chip_write(chip, TDA9874A_AOSR, 0x80); chip_write(chip, TDA9874A_MDACOSR, (tda9874a_mode) ? 0x82:0x80); chip_write(chip, TDA9874A_ESP, tda9874a_ESP); } else { /* dic == 0x07 */ chip_write(chip, TDA9874A_AMCONR, 0xfb); chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80); chip_write(chip, TDA9874A_AOSR, 0x00); /* or 0x10 */ } v4l2_dbg(1, debug, sd, "tda9874a_setup(): %s [0x%02X].\n", tda9874a_modelist[tda9874a_STD].name,tda9874a_STD); return 1; } static int tda9874a_getrxsubchans(struct CHIPSTATE *chip) { struct v4l2_subdev *sd = &chip->sd; int dsr,nsr,mode; int necr; /* just for debugging */ mode = V4L2_TUNER_SUB_MONO; dsr = chip_read2(chip, TDA9874A_DSR); if (dsr < 0) return mode; nsr = chip_read2(chip, TDA9874A_NSR); if (nsr < 0) return mode; necr = chip_read2(chip, TDA9874A_NECR); if (necr < 0) return mode; /* need to store dsr/nsr somewhere */ chip->shadow.bytes[MAXREGS-2] = dsr; chip->shadow.bytes[MAXREGS-1] = nsr; if(tda9874a_mode) { /* Note: DSR.RSSF and DSR.AMSTAT bits are also checked. * If NICAM auto-muting is enabled, DSR.AMSTAT=1 indicates * that sound has (temporarily) switched from NICAM to * mono FM (or AM) on 1st sound carrier due to high NICAM bit * error count. So in fact there is no stereo in this case :-( * But changing the mode to V4L2_TUNER_MODE_MONO would switch * external 4052 multiplexer in audio_hook(). */ if(nsr & 0x02) /* NSR.S/MB=1 */ mode = V4L2_TUNER_SUB_STEREO; if(nsr & 0x01) /* NSR.D/SB=1 */ mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; } else { if(dsr & 0x02) /* DSR.IDSTE=1 */ mode = V4L2_TUNER_SUB_STEREO; if(dsr & 0x04) /* DSR.IDDUA=1 */ mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; } v4l2_dbg(1, debug, sd, "tda9874a_getrxsubchans(): DSR=0x%X, NSR=0x%X, NECR=0x%X, return: %d.\n", dsr, nsr, necr, mode); return mode; } static void tda9874a_setaudmode(struct CHIPSTATE *chip, int mode) { struct v4l2_subdev *sd = &chip->sd; /* Disable/enable NICAM auto-muting (based on DSR.RSSF status bit). */ /* If auto-muting is disabled, we can hear a signal of degrading quality. */ if (tda9874a_mode) { if(chip->shadow.bytes[MAXREGS-2] & 0x20) /* DSR.RSSF=1 */ tda9874a_NCONR &= 0xfe; /* enable */ else tda9874a_NCONR |= 0x01; /* disable */ chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR); } /* Note: TDA9874A supports automatic FM dematrixing (FMMR register) * and has auto-select function for audio output (AOSR register). * Old TDA9874H doesn't support these features. * TDA9874A also has additional mono output pin (OUTM), which * on same (all?) tv-cards is not used, anyway (as well as MONOIN). */ if(tda9874a_dic == 0x11) { int aosr = 0x80; int mdacosr = (tda9874a_mode) ? 0x82:0x80; switch(mode) { case V4L2_TUNER_MODE_MONO: case V4L2_TUNER_MODE_STEREO: break; case V4L2_TUNER_MODE_LANG1: aosr = 0x80; /* auto-select, dual A/A */ mdacosr = (tda9874a_mode) ? 0x82:0x80; break; case V4L2_TUNER_MODE_LANG2: aosr = 0xa0; /* auto-select, dual B/B */ mdacosr = (tda9874a_mode) ? 0x83:0x81; break; case V4L2_TUNER_MODE_LANG1_LANG2: aosr = 0x00; /* always route L to L and R to R */ mdacosr = (tda9874a_mode) ? 0x82:0x80; break; default: return; } chip_write(chip, TDA9874A_AOSR, aosr); chip_write(chip, TDA9874A_MDACOSR, mdacosr); v4l2_dbg(1, debug, sd, "tda9874a_setaudmode(): req. mode %d; AOSR=0x%X, MDACOSR=0x%X.\n", mode, aosr, mdacosr); } else { /* dic == 0x07 */ int fmmr,aosr; switch(mode) { case V4L2_TUNER_MODE_MONO: fmmr = 0x00; /* mono */ aosr = 0x10; /* A/A */ break; case V4L2_TUNER_MODE_STEREO: if(tda9874a_mode) { fmmr = 0x00; aosr = 0x00; /* handled by NICAM auto-mute */ } else { fmmr = (tda9874a_ESP == 1) ? 0x05 : 0x04; /* stereo */ aosr = 0x00; } break; case V4L2_TUNER_MODE_LANG1: fmmr = 0x02; /* dual */ aosr = 0x10; /* dual A/A */ break; case V4L2_TUNER_MODE_LANG2: fmmr = 0x02; /* dual */ aosr = 0x20; /* dual B/B */ break; case V4L2_TUNER_MODE_LANG1_LANG2: fmmr = 0x02; /* dual */ aosr = 0x00; /* dual A/B */ break; default: return; } chip_write(chip, TDA9874A_FMMR, fmmr); chip_write(chip, TDA9874A_AOSR, aosr); v4l2_dbg(1, debug, sd, "tda9874a_setaudmode(): req. mode %d; FMMR=0x%X, AOSR=0x%X.\n", mode, fmmr, aosr); } } static int tda9874a_checkit(struct CHIPSTATE *chip) { struct v4l2_subdev *sd = &chip->sd; int dic,sic; /* device id. and software id. codes */ dic = chip_read2(chip, TDA9874A_DIC); if (dic < 0) return 0; sic = chip_read2(chip, TDA9874A_SIC); if (sic < 0) return 0; v4l2_dbg(1, debug, sd, "tda9874a_checkit(): DIC=0x%X, SIC=0x%X.\n", dic, sic); if((dic == 0x11)||(dic == 0x07)) { v4l2_info(sd, "found tda9874%s.\n", (dic == 0x11) ? "a" : "h"); tda9874a_dic = dic; /* remember device id. */ return 1; } return 0; /* not found */ } static int tda9874a_initialize(struct CHIPSTATE *chip) { if (tda9874a_SIF > 2) tda9874a_SIF = 1; if (tda9874a_STD >= ARRAY_SIZE(tda9874a_modelist)) tda9874a_STD = 0; if(tda9874a_AMSEL > 1) tda9874a_AMSEL = 0; if(tda9874a_SIF == 1) tda9874a_GCONR = 0xc0; /* sound IF input 1 */ else tda9874a_GCONR = 0xc1; /* sound IF input 2 */ tda9874a_ESP = tda9874a_STD; tda9874a_mode = (tda9874a_STD < 5) ? 0 : 1; if(tda9874a_AMSEL == 0) tda9874a_NCONR = 0x01; /* auto-mute: analog mono input */ else tda9874a_NCONR = 0x05; /* auto-mute: 1st carrier FM or AM */ tda9874a_setup(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 /* Auxiliary channel select (FM) 0b0000000*/ #define TDA9875_AVL 0x20 /* Auxiliary volume gauche */ #define TDA9875_AVR 0x21 /* Auxiliary volume droite */ #define TDA9875_ABA 0x22 /* Auxiliary Basse */ #define TDA9875_ATR 0x23 /* Auxiliary 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); if (dic < 0) return 0; rev = chip_read2(chip, 255); if (rev < 0) return 0; 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 */ #define TEA6300_VL 0x00 /* volume left */ #define TEA6300_VR 0x01 /* volume right */ #define TEA6300_BA 0x02 /* bass */ #define TEA6300_TR 0x03 /* treble */ #define TEA6300_FA 0x04 /* fader control */ #define TEA6300_S 0x05 /* switch register */ /* values for those registers: */ #define TEA6300_S_SA 0x01 /* stereo A input */ #define TEA6300_S_SB 0x02 /* stereo B */ #define TEA6300_S_SC 0x04 /* stereo C */ #define TEA6300_S_GMU 0x80 /* general mute */ #define TEA6320_V 0x00 /* volume (0-5)/loudness off (6)/zero crossing mute(7) */ #define TEA6320_FFR 0x01 /* fader front right (0-5) */ #define TEA6320_FFL 0x02 /* fader front left (0-5) */ #define TEA6320_FRR 0x03 /* fader rear right (0-5) */ #define TEA6320_FRL 0x04 /* fader rear left (0-5) */ #define TEA6320_BA 0x05 /* bass (0-4) */ #define TEA6320_TR 0x06 /* treble (0-4) */ #define TEA6320_S 0x07 /* switch register */ /* values for those registers: */ #define TEA6320_S_SA 0x07 /* stereo A input */ #define TEA6320_S_SB 0x06 /* stereo B */ #define TEA6320_S_SC 0x05 /* stereo C */ #define TEA6320_S_SD 0x04 /* stereo D */ #define TEA6320_S_GMU 0x80 /* general mute */ #define TEA6420_S_SA 0x00 /* stereo A input */ #define TEA6420_S_SB 0x01 /* stereo B */ #define TEA6420_S_SC 0x02 /* stereo C */ #define TEA6420_S_SD 0x03 /* stereo D */ #define TEA6420_S_SE 0x04 /* stereo E */ #define TEA6420_S_GMU 0x05 /* general mute */ static int tea6300_shift10(int val) { return val >> 10; } static int tea6300_shift12(int val) { return val >> 12; } /* Assumes 16bit input (values 0x3f to 0x0c are unique, values less than */ /* 0x0c mirror those immediately higher) */ static int tea6320_volume(int val) { return (val / (65535/(63-12)) + 12) & 0x3f; } static int tea6320_shift11(int val) { return val >> 11; } static int tea6320_initialize(struct CHIPSTATE * chip) { chip_write(chip, TEA6320_FFR, 0x3f); chip_write(chip, TEA6320_FFL, 0x3f); chip_write(chip, TEA6320_FRR, 0x3f); chip_write(chip, TEA6320_FRL, 0x3f); return 0; } /* ---------------------------------------------------------------------- */ /* audio chip descriptions - defines+functions for tda8425 */ #define TDA8425_VL 0x00 /* volume left */ #define TDA8425_VR 0x01 /* volume right */ #define TDA8425_BA 0x02 /* bass */ #define TDA8425_TR 0x03 /* treble */ #define TDA8425_S1 0x08 /* switch functions */ /* values for those registers: */ #define TDA8425_S1_OFF 0xEE /* audio off (mute on) */ #define TDA8425_S1_CH1 0xCE /* audio channel 1 (mute off) - "linear stereo" mode */ #define TDA8425_S1_CH2 0xCF /* audio channel 2 (mute off) - "linear stereo" mode */ #define TDA8425_S1_MU 0x20 /* mute bit */ #define TDA8425_S1_STEREO 0x18 /* stereo bits */ #define TDA8425_S1_STEREO_SPATIAL 0x18 /* spatial stereo */ #define TDA8425_S1_STEREO_LINEAR 0x08 /* linear stereo */ #define TDA8425_S1_STEREO_PSEUDO 0x10 /* pseudo stereo */ #define TDA8425_S1_STEREO_MONO 0x00 /* forced mono */ #define TDA8425_S1_ML 0x06 /* language selector */ #define TDA8425_S1_ML_SOUND_A 0x02 /* sound a */ #define TDA8425_S1_ML_SOUND_B 0x04 /* sound b */ #define TDA8425_S1_ML_STEREO 0x06 /* stereo */ #define TDA8425_S1_IS 0x01 /* channel selector */ static int tda8425_shift10(int val) { return (val >> 10) | 0xc0; } static int tda8425_shift12(int val) { return (val >> 12) | 0xf0; } static void tda8425_setaudmode(struct CHIPSTATE *chip, int mode) { int s1 = chip->shadow.bytes[TDA8425_S1+1] & 0xe1; switch (mode) { case V4L2_TUNER_MODE_LANG1: s1 |= TDA8425_S1_ML_SOUND_A; s1 |= TDA8425_S1_STEREO_PSEUDO; break; case V4L2_TUNER_MODE_LANG2: s1 |= TDA8425_S1_ML_SOUND_B; s1 |= TDA8425_S1_STEREO_PSEUDO; break; case V4L2_TUNER_MODE_LANG1_LANG2: s1 |= TDA8425_S1_ML_STEREO; s1 |= TDA8425_S1_STEREO_LINEAR; break; case V4L2_TUNER_MODE_MONO: s1 |= TDA8425_S1_ML_STEREO; s1 |= TDA8425_S1_STEREO_MONO; break; case V4L2_TUNER_MODE_STEREO: s1 |= TDA8425_S1_ML_STEREO; s1 |= TDA8425_S1_STEREO_SPATIAL; break; default: return; } chip_write(chip,TDA8425_S1,s1); } /* ---------------------------------------------------------------------- */ /* audio chip descriptions - defines+functions for pic16c54 (PV951) */ /* the registers of 16C54, I2C sub address. */ #define PIC16C54_REG_KEY_CODE 0x01 /* Not use. */ #define PIC16C54_REG_MISC 0x02 /* bit definition of the RESET register, I2C data. */ #define PIC16C54_MISC_RESET_REMOTE_CTL 0x01 /* bit 0, Reset to receive the key */ /* code of remote controller */ #define PIC16C54_MISC_MTS_MAIN 0x02 /* bit 1 */ #define PIC16C54_MISC_MTS_SAP 0x04 /* bit 2 */ #define PIC16C54_MISC_MTS_BOTH 0x08 /* bit 3 */ #define PIC16C54_MISC_SND_MUTE 0x10 /* bit 4, Mute Audio(Line-in and Tuner) */ #define PIC16C54_MISC_SND_NOTMUTE 0x20 /* bit 5 */ #define PIC16C54_MISC_SWITCH_TUNER 0x40 /* bit 6 , Switch to Line-in */ #define PIC16C54_MISC_SWITCH_LINE 0x80 /* bit 7 , Switch to Tuner */ /* ---------------------------------------------------------------------- */ /* audio chip descriptions - defines+functions for TA8874Z */ /* write 1st byte */ #define TA8874Z_LED_STE 0x80 #define TA8874Z_LED_BIL 0x40 #define TA8874Z_LED_EXT 0x20 #define TA8874Z_MONO_SET 0x10 #define TA8874Z_MUTE 0x08 #define TA8874Z_F_MONO 0x04 #define TA8874Z_MODE_SUB 0x02 #define TA8874Z_MODE_MAIN 0x01 /* write 2nd byte */ /*#define TA8874Z_TI 0x80 */ /* test mode */ #define TA8874Z_SEPARATION 0x3f #define TA8874Z_SEPARATION_DEFAULT 0x10 /* read */ #define TA8874Z_B1 0x80 #define TA8874Z_B0 0x40 #define TA8874Z_CHAG_FLAG 0x20 /* * B1 B0 * mono L H * stereo L L * BIL H L */ static int ta8874z_getrxsubchans(struct CHIPSTATE *chip) { int val, mode; mode = V4L2_TUNER_SUB_MONO; val = chip_read(chip); if (val < 0) return mode; if (val & TA8874Z_B1){ mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; }else if (!(val & TA8874Z_B0)){ mode = V4L2_TUNER_SUB_STEREO; } /* v4l2_dbg(1, debug, &chip->sd, "ta8874z_getrxsubchans(): raw chip read: 0x%02x, return: 0x%02x\n", val, mode); */ return mode; } static audiocmd ta8874z_stereo = { 2, {0, TA8874Z_SEPARATION_DEFAULT}}; static audiocmd ta8874z_mono = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}}; static audiocmd ta8874z_main = {2, { 0, TA8874Z_SEPARATION_DEFAULT}}; static audiocmd ta8874z_sub = {2, { TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}}; static audiocmd ta8874z_both = {2, { TA8874Z_MODE_MAIN | TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}}; static void ta8874z_setaudmode(struct CHIPSTATE *chip, int mode) { struct v4l2_subdev *sd = &chip->sd; int update = 1; audiocmd *t = NULL; v4l2_dbg(1, debug, sd, "ta8874z_setaudmode(): mode: 0x%02x\n", mode); switch(mode){ case V4L2_TUNER_MODE_MONO: t = &ta8874z_mono; break; case V4L2_TUNER_MODE_STEREO: t = &ta8874z_stereo; break; case V4L2_TUNER_MODE_LANG1: t = &ta8874z_main; break; case V4L2_TUNER_MODE_LANG2: t = &ta8874z_sub; break; case V4L2_TUNER_MODE_LANG1_LANG2: t = &ta8874z_both; break; default: update = 0; } if(update) chip_cmd(chip, "TA8874Z", t); } static int ta8874z_checkit(struct CHIPSTATE *chip) { int rc; rc = chip_read(chip); if (rc < 0) return rc; return ((rc & 0x1f) == 0x1f) ? 1 : 0; } /* ---------------------------------------------------------------------- */ /* audio chip descriptions - struct CHIPDESC */ /* insmod options to enable/disable individual audio chips */ static int tda8425 = 1; static int tda9840 = 1; 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; static int pic16c54 = 1; 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[] = { { .name = "tda9840", .insmodopt = &tda9840, .addr_lo = I2C_ADDR_TDA9840 >> 1, .addr_hi = I2C_ADDR_TDA9840 >> 1, .registers = 5, .flags = CHIP_NEED_CHECKMODE, /* callbacks */ .checkit = tda9840_checkit, .getrxsubchans = tda9840_getrxsubchans, .setaudmode = tda9840_setaudmode, .init = { 2, { TDA9840_TEST, TDA9840_TEST_INT1SN /* ,TDA9840_SW, TDA9840_MONO */} } }, { .name = "tda9873h", .insmodopt = &tda9873, .addr_lo = I2C_ADDR_TDA985x_L >> 1, .addr_hi = I2C_ADDR_TDA985x_H >> 1, .registers = 3, .flags = CHIP_HAS_INPUTSEL | CHIP_NEED_CHECKMODE, /* callbacks */ .checkit = tda9873_checkit, .getrxsubchans = tda9873_getrxsubchans, .setaudmode = tda9873_setaudmode, .init = { 4, { TDA9873_SW, 0xa4, 0x06, 0x03 } }, .inputreg = TDA9873_SW, .inputmute = TDA9873_MUTE | TDA9873_AUTOMUTE, .inputmap = {0xa0, 0xa2, 0xa0, 0xa0}, .inputmask = TDA9873_INP_MASK|TDA9873_MUTE|TDA9873_AUTOMUTE, }, { .name = "tda9874h/a", .insmodopt = &tda9874a, .addr_lo = I2C_ADDR_TDA9874 >> 1, .addr_hi = I2C_ADDR_TDA9874 >> 1, .flags = CHIP_NEED_CHECKMODE, /* callbacks */ .initialize = tda9874a_initialize, .checkit = tda9874a_checkit, .getrxsubchans = tda9874a_getrxsubchans, .setaudmode = tda9874a_setaudmode, }, { .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, .volinit = 58880, }, { .name = "tda9850", .insmodopt = &tda9850, .addr_lo = I2C_ADDR_TDA985x_L >> 1, .addr_hi = I2C_ADDR_TDA985x_H >> 1, .registers = 11, .getrxsubchans = tda985x_getrxsubchans, .setaudmode = tda985x_setaudmode, .init = { 8, { TDA9850_C4, 0x08, 0x08, TDA985x_STEREO, 0x07, 0x10, 0x10, 0x03 } } }, { .name = "tda9855", .insmodopt = &tda9855, .addr_lo = I2C_ADDR_TDA985x_L >> 1, .addr_hi = I2C_ADDR_TDA985x_H >> 1, .registers = 11, .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE, .leftreg = TDA9855_VL, .rightreg = TDA9855_VR, .bassreg = TDA9855_BA, .treblereg = TDA9855_TR, /* callbacks */ .volfunc = tda9855_volume, .bassfunc = tda9855_bass, .treblefunc = tda9855_treble, .getrxsubchans = tda985x_getrxsubchans, .setaudmode = tda985x_setaudmode, .init = { 12, { 0, 0x6f, 0x6f, 0x0e, 0x07<<1, 0x8<<2, TDA9855_MUTE | TDA9855_AVL | TDA9855_LOUD | TDA9855_INT, TDA985x_STEREO | TDA9855_LINEAR | TDA9855_TZCM | TDA9855_VZCM, 0x07, 0x10, 0x10, 0x03 }} }, { .name = "tea6300", .insmodopt = &tea6300, .addr_lo = I2C_ADDR_TEA6300 >> 1, .addr_hi = I2C_ADDR_TEA6300 >> 1, .registers = 6, .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL, .leftreg = TEA6300_VR, .rightreg = TEA6300_VL, .bassreg = TEA6300_BA, .treblereg = TEA6300_TR, /* callbacks */ .volfunc = tea6300_shift10, .bassfunc = tea6300_shift12, .treblefunc = tea6300_shift12, .inputreg = TEA6300_S, .inputmap = { TEA6300_S_SA, TEA6300_S_SB, TEA6300_S_SC }, .inputmute = TEA6300_S_GMU, }, { .name = "tea6320", .insmodopt = &tea6320, .addr_lo = I2C_ADDR_TEA6300 >> 1, .addr_hi = I2C_ADDR_TEA6300 >> 1, .registers = 8, .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL, .leftreg = TEA6320_V, .rightreg = TEA6320_V, .bassreg = TEA6320_BA, .treblereg = TEA6320_TR, /* callbacks */ .initialize = tea6320_initialize, .volfunc = tea6320_volume, .bassfunc = tea6320_shift11, .treblefunc = tea6320_shift11, .inputreg = TEA6320_S, .inputmap = { TEA6320_S_SA, TEA6420_S_SB, TEA6300_S_SC, TEA6320_S_SD }, .inputmute = TEA6300_S_GMU, }, { .name = "tea6420", .insmodopt = &tea6420, .addr_lo = I2C_ADDR_TEA6420 >> 1, .addr_hi = I2C_ADDR_TEA6420 >> 1, .registers = 1, .flags = CHIP_HAS_INPUTSEL, .inputreg = -1, .inputmap = { TEA6420_S_SA, TEA6420_S_SB, TEA6420_S_SC }, .inputmute = TEA6420_S_GMU, .inputmask = 0x07, }, { .name = "tda8425", .insmodopt = &tda8425, .addr_lo = I2C_ADDR_TDA8425 >> 1, .addr_hi = I2C_ADDR_TDA8425 >> 1, .registers = 9, .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL, .leftreg = TDA8425_VL, .rightreg = TDA8425_VR, .bassreg = TDA8425_BA, .treblereg = TDA8425_TR, /* callbacks */ .volfunc = tda8425_shift10, .bassfunc = tda8425_shift12, .treblefunc = tda8425_shift12, .setaudmode = tda8425_setaudmode, .inputreg = TDA8425_S1, .inputmap = { TDA8425_S1_CH1, TDA8425_S1_CH1, TDA8425_S1_CH1 }, .inputmute = TDA8425_S1_OFF, }, { .name = "pic16c54 (PV951)", .insmodopt = &pic16c54, .addr_lo = I2C_ADDR_PIC16C54 >> 1, .addr_hi = I2C_ADDR_PIC16C54>> 1, .registers = 2, .flags = CHIP_HAS_INPUTSEL, .inputreg = PIC16C54_REG_MISC, .inputmap = {PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_TUNER, PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE, PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE, PIC16C54_MISC_SND_MUTE}, .inputmute = PIC16C54_MISC_SND_MUTE, }, { .name = "ta8874z", .checkit = ta8874z_checkit, .insmodopt = &ta8874z, .addr_lo = I2C_ADDR_TDA9840 >> 1, .addr_hi = I2C_ADDR_TDA9840 >> 1, .registers = 2, /* callbacks */ .getrxsubchans = ta8874z_getrxsubchans, .setaudmode = ta8874z_setaudmode, .init = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}}, }, { .name = NULL } /* EOF */ }; /* ---------------------------------------------------------------------- */ static int tvaudio_s_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *sd = to_sd(ctrl); struct CHIPSTATE *chip = to_state(sd); struct CHIPDESC *desc = chip->desc; switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: chip->muted = ctrl->val; if (chip->muted) chip_write_masked(chip,desc->inputreg,desc->inputmute,desc->inputmask); else chip_write_masked(chip,desc->inputreg, desc->inputmap[chip->input],desc->inputmask); return 0; case V4L2_CID_AUDIO_VOLUME: { u32 volume, balance; u32 left, right; volume = chip->volume->val; balance = chip->balance->val; left = (min(65536U - balance, 32768U) * volume) / 32768U; right = (min(balance, 32768U) * volume) / 32768U; chip_write(chip, desc->leftreg, desc->volfunc(left)); chip_write(chip, desc->rightreg, desc->volfunc(right)); return 0; } case V4L2_CID_AUDIO_BASS: chip_write(chip, desc->bassreg, desc->bassfunc(ctrl->val)); return 0; case V4L2_CID_AUDIO_TREBLE: chip_write(chip, desc->treblereg, desc->treblefunc(ctrl->val)); return 0; } return -EINVAL; } /* ---------------------------------------------------------------------- */ /* video4linux interface */ static int tvaudio_s_radio(struct v4l2_subdev *sd) { struct CHIPSTATE *chip = to_state(sd); chip->radio = 1; /* del_timer(&chip->wt); */ return 0; } static int tvaudio_s_routing(struct v4l2_subdev *sd, u32 input, u32 output, u32 config) { struct CHIPSTATE *chip = to_state(sd); struct CHIPDESC *desc = chip->desc; if (!(desc->flags & CHIP_HAS_INPUTSEL)) return 0; if (input >= 4) return -EINVAL; /* There are four inputs: tuner, radio, extern and intern. */ chip->input = input; if (chip->muted) return 0; chip_write_masked(chip, desc->inputreg, desc->inputmap[chip->input], desc->inputmask); return 0; } static int tvaudio_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *vt) { struct CHIPSTATE *chip = to_state(sd); struct CHIPDESC *desc = chip->desc; if (!desc->setaudmode) return 0; if (chip->radio) return 0; switch (vt->audmode) { case V4L2_TUNER_MODE_MONO: case V4L2_TUNER_MODE_STEREO: case V4L2_TUNER_MODE_LANG1: case V4L2_TUNER_MODE_LANG2: case V4L2_TUNER_MODE_LANG1_LANG2: break; default: return -EINVAL; } chip->audmode = vt->audmode; if (chip->thread) wake_up_process(chip->thread); else desc->setaudmode(chip, vt->audmode); return 0; } static int tvaudio_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) { struct CHIPSTATE *chip = to_state(sd); struct CHIPDESC *desc = chip->desc; if (!desc->getrxsubchans) return 0; if (chip->radio) return 0; vt->audmode = chip->audmode; vt->rxsubchans = desc->getrxsubchans(chip); vt->capability |= V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2; return 0; } static int tvaudio_s_std(struct v4l2_subdev *sd, v4l2_std_id std) { struct CHIPSTATE *chip = to_state(sd); chip->radio = 0; return 0; } static int tvaudio_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *freq) { struct CHIPSTATE *chip = to_state(sd); struct CHIPDESC *desc = chip->desc; /* For chips that provide getrxsubchans and setaudmode, and doesn't automatically follows the stereo carrier, a kthread is created to set the audio standard. In this case, when then the video channel is changed, tvaudio starts on MONO mode. After waiting for 2 seconds, the kernel thread is called, to follow whatever audio standard is pointed by the audio carrier. */ if (chip->thread) { desc->setaudmode(chip, V4L2_TUNER_MODE_MONO); chip->prevmode = -1; /* reset previous mode */ mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000)); } return 0; } static int tvaudio_log_status(struct v4l2_subdev *sd) { struct CHIPSTATE *chip = to_state(sd); struct CHIPDESC *desc = chip->desc; v4l2_info(sd, "Chip: %s\n", desc->name); v4l2_ctrl_handler_log_status(&chip->hdl, sd->name); return 0; } /* ----------------------------------------------------------------------- */ static const struct v4l2_ctrl_ops tvaudio_ctrl_ops = { .s_ctrl = tvaudio_s_ctrl, }; static const struct v4l2_subdev_core_ops tvaudio_core_ops = { .log_status = tvaudio_log_status, }; static const struct v4l2_subdev_tuner_ops tvaudio_tuner_ops = { .s_radio = tvaudio_s_radio, .s_frequency = tvaudio_s_frequency, .s_tuner = tvaudio_s_tuner, .g_tuner = tvaudio_g_tuner, }; static const struct v4l2_subdev_audio_ops tvaudio_audio_ops = { .s_routing = tvaudio_s_routing, }; static const struct v4l2_subdev_video_ops tvaudio_video_ops = { .s_std = tvaudio_s_std, }; static const struct v4l2_subdev_ops tvaudio_ops = { .core = &tvaudio_core_ops, .tuner = &tvaudio_tuner_ops, .audio = &tvaudio_audio_ops, .video = &tvaudio_video_ops, }; /* ----------------------------------------------------------------------- */ /* i2c registration */ static int tvaudio_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct CHIPSTATE *chip; struct CHIPDESC *desc; struct v4l2_subdev *sd; if (debug) { printk(KERN_INFO "tvaudio: TV audio decoder + audio/video mux driver\n"); printk(KERN_INFO "tvaudio: known chips: "); for (desc = chiplist; desc->name != NULL; desc++) printk(KERN_CONT "%s%s", (desc == chiplist) ? "" : ", ", desc->name); printk(KERN_CONT "\n"); } chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); if (!chip) return -ENOMEM; sd = &chip->sd; v4l2_i2c_subdev_init(sd, client, &tvaudio_ops); /* find description for the chip */ v4l2_dbg(1, debug, sd, "chip found @ 0x%x\n", client->addr<<1); for (desc = chiplist; desc->name != NULL; desc++) { if (0 == *(desc->insmodopt)) continue; if (client->addr < desc->addr_lo || client->addr > desc->addr_hi) continue; if (desc->checkit && !desc->checkit(chip)) continue; break; } if (desc->name == NULL) { v4l2_dbg(1, debug, sd, "no matching chip description found\n"); return -EIO; } v4l2_info(sd, "%s found @ 0x%x (%s)\n", desc->name, client->addr<<1, client->adapter->name); if (desc->flags) { v4l2_dbg(1, debug, sd, "matches:%s%s%s.\n", (desc->flags & CHIP_HAS_VOLUME) ? " volume" : "", (desc->flags & CHIP_HAS_BASSTREBLE) ? " bass/treble" : "", (desc->flags & CHIP_HAS_INPUTSEL) ? " audiomux" : ""); } /* fill required data structures */ if (!id) strscpy(client->name, desc->name, I2C_NAME_SIZE); chip->desc = desc; chip->shadow.count = desc->registers+1; chip->prevmode = -1; chip->audmode = V4L2_TUNER_MODE_LANG1; /* initialization */ if (desc->initialize != NULL) desc->initialize(chip); else chip_cmd(chip, "init", &desc->init); v4l2_ctrl_handler_init(&chip->hdl, 5); if (desc->flags & CHIP_HAS_INPUTSEL) v4l2_ctrl_new_std(&chip->hdl, &tvaudio_ctrl_ops, V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); if (desc->flags & CHIP_HAS_VOLUME) { if (!desc->volfunc) { /* This shouldn't be happen. Warn user, but keep working without volume controls */ v4l2_info(sd, "volume callback undefined!\n"); desc->flags &= ~CHIP_HAS_VOLUME; } else { chip->volume = v4l2_ctrl_new_std(&chip->hdl, &tvaudio_ctrl_ops, V4L2_CID_AUDIO_VOLUME, 0, 65535, 65535 / 100, desc->volinit ? desc->volinit : 65535); chip->balance = v4l2_ctrl_new_std(&chip->hdl, &tvaudio_ctrl_ops, V4L2_CID_AUDIO_BALANCE, 0, 65535, 65535 / 100, 32768); v4l2_ctrl_cluster(2, &chip->volume); } } if (desc->flags & CHIP_HAS_BASSTREBLE) { if (!desc->bassfunc || !desc->treblefunc) { /* This shouldn't be happen. Warn user, but keep working without bass/treble controls */ v4l2_info(sd, "bass/treble callbacks undefined!\n"); desc->flags &= ~CHIP_HAS_BASSTREBLE; } else { v4l2_ctrl_new_std(&chip->hdl, &tvaudio_ctrl_ops, V4L2_CID_AUDIO_BASS, 0, 65535, 65535 / 100, desc->bassinit ? desc->bassinit : 32768); v4l2_ctrl_new_std(&chip->hdl, &tvaudio_ctrl_ops, V4L2_CID_AUDIO_TREBLE, 0, 65535, 65535 / 100, desc->trebleinit ? desc->trebleinit : 32768); } } sd->ctrl_handler = &chip->hdl; if (chip->hdl.error) { int err = chip->hdl.error; v4l2_ctrl_handler_free(&chip->hdl); return err; } /* set controls to the default values */ v4l2_ctrl_handler_setup(&chip->hdl); chip->thread = NULL; timer_setup(&chip->wt, chip_thread_wake, 0); if (desc->flags & CHIP_NEED_CHECKMODE) { if (!desc->getrxsubchans || !desc->setaudmode) { /* This shouldn't be happen. Warn user, but keep working without kthread */ v4l2_info(sd, "set/get mode callbacks undefined!\n"); return 0; } /* start async thread */ chip->thread = kthread_run(chip_thread, chip, "%s", client->name); if (IS_ERR(chip->thread)) { v4l2_warn(sd, "failed to create kthread\n"); chip->thread = NULL; } } return 0; } static int tvaudio_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct CHIPSTATE *chip = to_state(sd); del_timer_sync(&chip->wt); if (chip->thread) { /* shutdown async thread */ kthread_stop(chip->thread); chip->thread = NULL; } v4l2_device_unregister_subdev(sd); v4l2_ctrl_handler_free(&chip->hdl); return 0; } /* 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[] = { { "tvaudio", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, tvaudio_id); static struct i2c_driver tvaudio_driver = { .driver = { .name = "tvaudio", }, .probe = tvaudio_probe, .remove = tvaudio_remove, .id_table = tvaudio_id, }; module_i2c_driver(tvaudio_driver);
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with Cregit http://github.com/cregit/cregit
Version 2.0-RC1