#include <linux/freezer.h>
#include <media/tvaudio.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-ioctl.h>
+#include <media/v4l2-device.h>
#include <media/v4l2-chip-ident.h>
#include <media/v4l2-i2c-drv-legacy.h>
/* current state of the chip */
struct CHIPSTATE {
- struct i2c_client *c;
+ struct v4l2_subdev sd;
/* chip-specific description - should point to
an entry at CHIPDESC table */
int audmode;
};
+static inline struct CHIPSTATE *to_state(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct CHIPSTATE, sd);
+}
+
/* ---------------------------------------------------------------------- */
/* i2c addresses */
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];
if (subaddr < 0) {
- v4l_dbg(1, debug, chip->c, "%s: chip_write: 0x%x\n",
- chip->c->name, val);
+ v4l2_dbg(1, debug, sd, "chip_write: 0x%x\n", val);
chip->shadow.bytes[1] = val;
buffer[0] = val;
- if (1 != i2c_master_send(chip->c,buffer,1)) {
- v4l_warn(chip->c, "%s: I/O error (write 0x%x)\n",
- chip->c->name, val);
+ if (1 != i2c_master_send(c, buffer, 1)) {
+ v4l2_warn(sd, "I/O error (write 0x%x)\n", val);
return -1;
}
} else {
if (subaddr + 1 >= ARRAY_SIZE(chip->shadow.bytes)) {
- v4l_info(chip->c,
+ v4l2_info(sd,
"Tried to access a non-existent register: %d\n",
subaddr);
return -EINVAL;
}
- v4l_dbg(1, debug, chip->c, "%s: chip_write: reg%d=0x%x\n",
- chip->c->name, subaddr, val);
+ 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;
- if (2 != i2c_master_send(chip->c,buffer,2)) {
- v4l_warn(chip->c, "%s: I/O error (write reg%d=0x%x)\n",
- chip->c->name, subaddr, val);
+ if (2 != i2c_master_send(c, buffer, 2)) {
+ v4l2_warn(sd, "I/O error (write reg%d=0x%x)\n",
+ subaddr, val);
return -1;
}
}
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)) {
- v4l_info(chip->c,
+ v4l2_info(sd,
"Tried to access a non-existent register: %d\n",
subaddr);
return -EINVAL;
static int chip_read(struct CHIPSTATE *chip)
{
+ struct v4l2_subdev *sd = &chip->sd;
+ struct i2c_client *c = v4l2_get_subdevdata(sd);
unsigned char buffer;
- if (1 != i2c_master_recv(chip->c,&buffer,1)) {
- v4l_warn(chip->c, "%s: I/O error (read)\n",
- chip->c->name);
+ if (1 != i2c_master_recv(c, &buffer, 1)) {
+ v4l2_warn(sd, "I/O error (read)\n");
return -1;
}
- v4l_dbg(1, debug, chip->c, "%s: chip_read: 0x%x\n",chip->c->name, buffer);
+ 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);
unsigned char write[1];
unsigned char read[1];
struct i2c_msg msgs[2] = {
- { chip->c->addr, 0, 1, write },
- { chip->c->addr, I2C_M_RD, 1, read }
+ { c->addr, 0, 1, write },
+ { c->addr, I2C_M_RD, 1, read }
};
+
write[0] = subaddr;
- if (2 != i2c_transfer(chip->c->adapter,msgs,2)) {
- v4l_warn(chip->c, "%s: I/O error (read2)\n", chip->c->name);
+ if (2 != i2c_transfer(c->adapter, msgs, 2)) {
+ v4l2_warn(sd, "I/O error (read2)\n");
return -1;
}
- v4l_dbg(1, debug, chip->c, "%s: chip_read2: reg%d=0x%x\n",
- chip->c->name, subaddr,read[0]);
+ 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;
if (0 == cmd->count)
return 0;
if (cmd->count + cmd->bytes[0] - 1 >= ARRAY_SIZE(chip->shadow.bytes)) {
- v4l_info(chip->c,
+ 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 bellow !*/
/* update our shadow register set; print bytes if (debug > 0) */
- v4l_dbg(1, debug, chip->c, "%s: chip_cmd(%s): reg=%d, data:",
- chip->c->name, name,cmd->bytes[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(" 0x%x",cmd->bytes[i]);
+ printk(KERN_CONT " 0x%x", cmd->bytes[i]);
chip->shadow.bytes[i+cmd->bytes[0]] = cmd->bytes[i];
}
if (debug)
- printk("\n");
+ printk(KERN_CONT "\n");
/* send data to the chip */
- if (cmd->count != i2c_master_send(chip->c,cmd->bytes,cmd->count)) {
- v4l_warn(chip->c, "%s: I/O error (%s)\n", chip->c->name, name);
+ if (cmd->count != i2c_master_send(c, cmd->bytes, cmd->count)) {
+ v4l2_warn(sd, "I/O error (%s)\n", name);
return -1;
}
return 0;
{
struct CHIPSTATE *chip = data;
struct CHIPDESC *desc = chip->desc;
+ struct v4l2_subdev *sd = &chip->sd;
int mode;
- v4l_dbg(1, debug, chip->c, "%s: thread started\n", chip->c->name);
+ v4l2_dbg(1, debug, sd, "thread started\n");
set_freezable();
for (;;) {
set_current_state(TASK_INTERRUPTIBLE);
try_to_freeze();
if (kthread_should_stop())
break;
- v4l_dbg(1, debug, chip->c, "%s: thread wakeup\n", chip->c->name);
+ v4l2_dbg(1, debug, sd, "thread wakeup\n");
/* don't do anything for radio or if mode != auto */
if (chip->radio || chip->mode != 0)
continue;
/* chip detected a new audio mode - set it */
- v4l_dbg(1, debug, chip->c, "%s: thread checkmode\n",
- chip->c->name);
+ v4l2_dbg(1, debug, sd, "thread checkmode\n");
chip->prevmode = mode;
mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000));
}
- v4l_dbg(1, debug, chip->c, "%s: thread exiting\n", chip->c->name);
+ v4l2_dbg(1, debug, sd, "thread exiting\n");
return 0;
}
static int tda9840_getmode(struct CHIPSTATE *chip)
{
+ struct v4l2_subdev *sd = &chip->sd;
int val, mode;
val = chip_read(chip);
if (val & TDA9840_ST_STEREO)
mode |= V4L2_TUNER_MODE_STEREO;
- v4l_dbg(1, debug, chip->c, "tda9840_getmode(): raw chip read: %d, return: %d\n",
+ v4l2_dbg(1, debug, sd, "tda9840_getmode(): raw chip read: %d, return: %d\n",
val, mode);
return mode;
}
static int tda9873_getmode(struct CHIPSTATE *chip)
{
+ struct v4l2_subdev *sd = &chip->sd;
int val,mode;
val = chip_read(chip);
mode |= V4L2_TUNER_MODE_STEREO;
if (val & TDA9873_DUAL)
mode |= V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
- v4l_dbg(1, debug, chip->c, "tda9873_getmode(): raw chip read: %d, return: %d\n",
+ v4l2_dbg(1, debug, sd, "tda9873_getmode(): raw chip read: %d, return: %d\n",
val, mode);
return mode;
}
static void tda9873_setmode(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) {
- v4l_dbg(1, debug, chip->c, "tda9873_setmode(): external input\n");
+ v4l2_dbg(1, debug, sd, "tda9873_setmode(): external input\n");
return;
}
- v4l_dbg(1, debug, chip->c, "tda9873_setmode(): chip->shadow.bytes[%d] = %d\n", TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]);
- v4l_dbg(1, debug, chip->c, "tda9873_setmode(): sw_data = %d\n", sw_data);
+ v4l2_dbg(1, debug, sd, "tda9873_setmode(): chip->shadow.bytes[%d] = %d\n", TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]);
+ v4l2_dbg(1, debug, sd, "tda9873_setmode(): sw_data = %d\n", sw_data);
switch (mode) {
case V4L2_TUNER_MODE_MONO:
}
chip_write(chip, TDA9873_SW, sw_data);
- v4l_dbg(1, debug, chip->c, "tda9873_setmode(): req. mode %d; chip_write: %d\n",
+ v4l2_dbg(1, debug, sd, "tda9873_setmode(): req. mode %d; chip_write: %d\n",
mode, sw_data);
}
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);
chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
chip_write(chip, TDA9874A_AOSR, 0x00); /* or 0x10 */
}
- v4l_dbg(1, debug, chip->c, "tda9874a_setup(): %s [0x%02X].\n",
+ v4l2_dbg(1, debug, sd, "tda9874a_setup(): %s [0x%02X].\n",
tda9874a_modelist[tda9874a_STD].name,tda9874a_STD);
return 1;
}
static int tda9874a_getmode(struct CHIPSTATE *chip)
{
+ struct v4l2_subdev *sd = &chip->sd;
int dsr,nsr,mode;
int necr; /* just for debugging */
mode |= V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
}
- v4l_dbg(1, debug, chip->c, "tda9874a_getmode(): DSR=0x%X, NSR=0x%X, NECR=0x%X, return: %d.\n",
+ v4l2_dbg(1, debug, sd, "tda9874a_getmode(): DSR=0x%X, NSR=0x%X, NECR=0x%X, return: %d.\n",
dsr, nsr, necr, mode);
return mode;
}
static void tda9874a_setmode(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 (tda9874a_mode) {
if(chip->shadow.bytes[MAXREGS-2] & 0x20) /* DSR.RSSF=1 */
tda9874a_NCONR &= 0xfe; /* enable */
else
chip_write(chip, TDA9874A_AOSR, aosr);
chip_write(chip, TDA9874A_MDACOSR, mdacosr);
- v4l_dbg(1, debug, chip->c, "tda9874a_setmode(): req. mode %d; AOSR=0x%X, MDACOSR=0x%X.\n",
+ v4l2_dbg(1, debug, sd, "tda9874a_setmode(): req. mode %d; AOSR=0x%X, MDACOSR=0x%X.\n",
mode, aosr, mdacosr);
} else { /* dic == 0x07 */
chip_write(chip, TDA9874A_FMMR, fmmr);
chip_write(chip, TDA9874A_AOSR, aosr);
- v4l_dbg(1, debug, chip->c, "tda9874a_setmode(): req. mode %d; FMMR=0x%X, AOSR=0x%X.\n",
+ v4l2_dbg(1, debug, sd, "tda9874a_setmode(): 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 */
if(-1 == (dic = chip_read2(chip,TDA9874A_DIC)))
if(-1 == (sic = chip_read2(chip,TDA9874A_SIC)))
return 0;
- v4l_dbg(1, debug, chip->c, "tda9874a_checkit(): DIC=0x%X, SIC=0x%X.\n", dic, sic);
+ v4l2_dbg(1, debug, sd, "tda9874a_checkit(): DIC=0x%X, SIC=0x%X.\n", dic, sic);
if((dic == 0x11)||(dic == 0x07)) {
- v4l_info(chip->c, "found tda9874%s.\n", (dic == 0x11) ? "a":"h");
+ v4l2_info(sd, "found tda9874%s.\n", (dic == 0x11) ? "a" : "h");
tda9874a_dic = dic; /* remember device id. */
return 1;
}
static int tda8425_initialize(struct CHIPSTATE *chip)
{
struct CHIPDESC *desc = chip->desc;
+ struct i2c_client *c = v4l2_get_subdevdata(&chip->sd);
int inputmap[4] = { /* tuner */ TDA8425_S1_CH2, /* radio */ TDA8425_S1_CH1,
/* extern */ TDA8425_S1_CH1, /* intern */ TDA8425_S1_OFF};
- if (chip->c->adapter->id == I2C_HW_B_RIVA) {
- memcpy (desc->inputmap, inputmap, sizeof (inputmap));
- }
+ if (c->adapter->id == I2C_HW_B_RIVA)
+ memcpy(desc->inputmap, inputmap, sizeof(inputmap));
return 0;
}
static void ta8874z_setmode(struct CHIPSTATE *chip, int mode)
{
+ struct v4l2_subdev *sd = &chip->sd;
int update = 1;
audiocmd *t = NULL;
- v4l_dbg(1, debug, chip->c, "ta8874z_setmode(): mode: 0x%02x\n", mode);
+
+ v4l2_dbg(1, debug, sd, "ta8874z_setmode(): mode: 0x%02x\n", mode);
switch(mode){
case V4L2_TUNER_MODE_MONO:
/* ---------------------------------------------------------------------- */
-/* i2c registration */
-
-static int chip_probe(struct i2c_client *client, const struct i2c_device_id *id)
-{
- struct CHIPSTATE *chip;
- struct CHIPDESC *desc;
-
- 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("%s%s", (desc == chiplist) ? "" : ", ", desc->name);
- printk("\n");
- }
-
- chip = kzalloc(sizeof(*chip),GFP_KERNEL);
- if (!chip)
- return -ENOMEM;
- chip->c = client;
- i2c_set_clientdata(client, chip);
- /* find description for the chip */
- v4l_dbg(1, debug, client, "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) {
- v4l_dbg(1, debug, client, "no matching chip description found\n");
- kfree(chip);
- return -EIO;
- }
- v4l_info(client, "%s found @ 0x%x (%s)\n", desc->name, client->addr<<1, client->adapter->name);
- if (desc->flags) {
- v4l_dbg(1, debug, client, "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)
- strlcpy(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);
-
- if (desc->flags & CHIP_HAS_VOLUME) {
- if (!desc->volfunc) {
- /* This shouldn't be happen. Warn user, but keep working
- without volume controls
- */
- v4l_info(chip->c, "volume callback undefined!\n");
- desc->flags &= ~CHIP_HAS_VOLUME;
- } else {
- chip->left = desc->leftinit ? desc->leftinit : 65535;
- chip->right = desc->rightinit ? desc->rightinit : 65535;
- chip_write(chip, desc->leftreg,
- desc->volfunc(chip->left));
- chip_write(chip, desc->rightreg,
- desc->volfunc(chip->right));
- }
- }
- 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
- */
- v4l_info(chip->c, "bass/treble callbacks undefined!\n");
- desc->flags &= ~CHIP_HAS_BASSTREBLE;
- } else {
- chip->treble = desc->trebleinit ?
- desc->trebleinit : 32768;
- chip->bass = desc->bassinit ?
- desc->bassinit : 32768;
- chip_write(chip, desc->bassreg,
- desc->bassfunc(chip->bass));
- chip_write(chip, desc->treblereg,
- desc->treblefunc(chip->treble));
- }
- }
-
- chip->thread = NULL;
- if (desc->flags & CHIP_NEED_CHECKMODE) {
- if (!desc->getmode || !desc->setmode) {
- /* This shouldn't be happen. Warn user, but keep working
- without kthread
- */
- v4l_info(chip->c, "set/get mode callbacks undefined!\n");
- return 0;
- }
- /* start async thread */
- init_timer(&chip->wt);
- chip->wt.function = chip_thread_wake;
- chip->wt.data = (unsigned long)chip;
- chip->thread = kthread_run(chip_thread, chip, chip->c->name);
- if (IS_ERR(chip->thread)) {
- v4l_warn(chip->c, "%s: failed to create kthread\n",
- chip->c->name);
- chip->thread = NULL;
- }
- }
- return 0;
-}
-
-static int chip_remove(struct i2c_client *client)
-{
- struct CHIPSTATE *chip = i2c_get_clientdata(client);
-
- del_timer_sync(&chip->wt);
- if (chip->thread) {
- /* shutdown async thread */
- kthread_stop(chip->thread);
- chip->thread = NULL;
- }
-
- kfree(chip);
- return 0;
-}
-
-static int tvaudio_get_ctrl(struct CHIPSTATE *chip,
+static int tvaudio_g_ctrl(struct v4l2_subdev *sd,
struct v4l2_control *ctrl)
{
+ struct CHIPSTATE *chip = to_state(sd);
struct CHIPDESC *desc = chip->desc;
switch (ctrl->id) {
return -EINVAL;
}
-static int tvaudio_set_ctrl(struct CHIPSTATE *chip,
+static int tvaudio_s_ctrl(struct v4l2_subdev *sd,
struct v4l2_control *ctrl)
{
+ struct CHIPSTATE *chip = to_state(sd);
struct CHIPDESC *desc = chip->desc;
switch (ctrl->id) {
/* ---------------------------------------------------------------------- */
/* video4linux interface */
-static int chip_command(struct i2c_client *client,
- unsigned int cmd, void *arg)
+static int tvaudio_s_radio(struct v4l2_subdev *sd)
{
- struct CHIPSTATE *chip = i2c_get_clientdata(client);
- struct CHIPDESC *desc = chip->desc;
+ struct CHIPSTATE *chip = to_state(sd);
- if (debug > 0) {
- v4l_i2c_print_ioctl(chip->c, cmd);
- printk("\n");
+ chip->radio = 1;
+ chip->watch_stereo = 0;
+ /* del_timer(&chip->wt); */
+ return 0;
+}
+
+static int tvaudio_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
+{
+ struct CHIPSTATE *chip = to_state(sd);
+ struct CHIPDESC *desc = chip->desc;
+
+ switch (qc->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ break;
+ case V4L2_CID_AUDIO_VOLUME:
+ case V4L2_CID_AUDIO_BALANCE:
+ if (!(desc->flags & CHIP_HAS_VOLUME))
+ return -EINVAL;
+ break;
+ case V4L2_CID_AUDIO_BASS:
+ case V4L2_CID_AUDIO_TREBLE:
+ if (!(desc->flags & CHIP_HAS_BASSTREBLE))
+ return -EINVAL;
+ break;
+ default:
+ return -EINVAL;
}
+ return v4l2_ctrl_query_fill_std(qc);
+}
+
+static int tvaudio_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *rt)
+{
+ struct CHIPSTATE *chip = to_state(sd);
+ struct CHIPDESC *desc = chip->desc;
- switch (cmd) {
- case AUDC_SET_RADIO:
- chip->radio = 1;
+ if (!(desc->flags & CHIP_HAS_INPUTSEL) || rt->input >= 4)
+ return -EINVAL;
+ /* There are four inputs: tuner, radio, extern and intern. */
+ chip->input = rt->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, struct v4l2_tuner *vt)
+{
+ struct CHIPSTATE *chip = to_state(sd);
+ struct CHIPDESC *desc = chip->desc;
+ int mode = 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:
+ mode = vt->audmode;
+ break;
+ case V4L2_TUNER_MODE_LANG1_LANG2:
+ mode = V4L2_TUNER_MODE_STEREO;
+ break;
+ default:
+ return -EINVAL;
+ }
+ chip->audmode = vt->audmode;
+
+ if (desc->setmode && mode) {
chip->watch_stereo = 0;
/* del_timer(&chip->wt); */
- break;
- /* --- v4l ioctls --- */
- /* take care: bttv does userspace copying, we'll get a
- kernel pointer here... */
- case VIDIOC_QUERYCTRL:
- {
- struct v4l2_queryctrl *qc = arg;
-
- switch (qc->id) {
- case V4L2_CID_AUDIO_MUTE:
- break;
- case V4L2_CID_AUDIO_VOLUME:
- case V4L2_CID_AUDIO_BALANCE:
- if (!(desc->flags & CHIP_HAS_VOLUME))
- return -EINVAL;
- break;
- case V4L2_CID_AUDIO_BASS:
- case V4L2_CID_AUDIO_TREBLE:
- if (!(desc->flags & CHIP_HAS_BASSTREBLE))
- return -EINVAL;
- break;
- default:
- return -EINVAL;
- }
- return v4l2_ctrl_query_fill_std(qc);
+ chip->mode = mode;
+ desc->setmode(chip, mode);
}
- case VIDIOC_S_CTRL:
- return tvaudio_set_ctrl(chip, arg);
+ return 0;
+}
- case VIDIOC_G_CTRL:
- return tvaudio_get_ctrl(chip, arg);
- case VIDIOC_INT_G_AUDIO_ROUTING:
- {
- struct v4l2_routing *rt = arg;
+static int tvaudio_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
+{
+ struct CHIPSTATE *chip = to_state(sd);
+ struct CHIPDESC *desc = chip->desc;
+ int mode = V4L2_TUNER_MODE_MONO;
- rt->input = chip->input;
- rt->output = 0;
- break;
+ if (chip->radio)
+ return 0;
+ vt->audmode = chip->audmode;
+ vt->rxsubchans = 0;
+ vt->capability = V4L2_TUNER_CAP_STEREO |
+ V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
+
+ if (desc->getmode)
+ mode = desc->getmode(chip);
+
+ if (mode & V4L2_TUNER_MODE_MONO)
+ vt->rxsubchans |= V4L2_TUNER_SUB_MONO;
+ if (mode & V4L2_TUNER_MODE_STEREO)
+ vt->rxsubchans |= V4L2_TUNER_SUB_STEREO;
+ /* Note: for SAP it should be mono/lang2 or stereo/lang2.
+ When this module is converted fully to v4l2, then this
+ should change for those chips that can detect SAP. */
+ if (mode & V4L2_TUNER_MODE_LANG1)
+ vt->rxsubchans = V4L2_TUNER_SUB_LANG1 |
+ V4L2_TUNER_SUB_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, struct v4l2_frequency *freq)
+{
+ struct CHIPSTATE *chip = to_state(sd);
+ struct CHIPDESC *desc = chip->desc;
+
+ chip->mode = 0; /* automatic */
+
+ /* For chips that provide getmode and setmode, 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->setmode(chip, V4L2_TUNER_MODE_MONO);
+ if (chip->prevmode != V4L2_TUNER_MODE_MONO)
+ chip->prevmode = -1; /* reset previous mode */
+ mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000));
}
- case VIDIOC_INT_S_AUDIO_ROUTING:
- {
- struct v4l2_routing *rt = arg;
+ return 0;
+}
- if (!(desc->flags & CHIP_HAS_INPUTSEL) || rt->input >= 4)
- return -EINVAL;
- /* There are four inputs: tuner, radio, extern and intern. */
- chip->input = rt->input;
- if (chip->muted)
- break;
- chip_write_masked(chip, desc->inputreg,
- desc->inputmap[chip->input], desc->inputmask);
- break;
+static int tvaudio_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_chip_ident *chip)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TVAUDIO, 0);
+}
+
+static int tvaudio_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+ return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops tvaudio_core_ops = {
+ .g_chip_ident = tvaudio_g_chip_ident,
+ .queryctrl = tvaudio_queryctrl,
+ .g_ctrl = tvaudio_g_ctrl,
+ .s_ctrl = tvaudio_s_ctrl,
+};
+
+static const struct v4l2_subdev_tuner_ops tvaudio_tuner_ops = {
+ .s_radio = tvaudio_s_radio,
+ .s_frequency = tvaudio_s_frequency,
+ .s_std = tvaudio_s_std,
+ .s_tuner = tvaudio_s_tuner,
+ .s_tuner = tvaudio_g_tuner,
+};
+
+static const struct v4l2_subdev_audio_ops tvaudio_audio_ops = {
+ .s_routing = tvaudio_s_routing,
+};
+
+static const struct v4l2_subdev_ops tvaudio_ops = {
+ .core = &tvaudio_core_ops,
+ .tuner = &tvaudio_tuner_ops,
+ .audio = &tvaudio_audio_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("%s%s", (desc == chiplist) ? "" : ", ", desc->name);
+ printk("\n");
}
- case VIDIOC_S_TUNER:
- {
- struct v4l2_tuner *vt = arg;
- int mode = 0;
- if (chip->radio)
- break;
- switch (vt->audmode) {
- case V4L2_TUNER_MODE_MONO:
- case V4L2_TUNER_MODE_STEREO:
- case V4L2_TUNER_MODE_LANG1:
- case V4L2_TUNER_MODE_LANG2:
- mode = vt->audmode;
- break;
- case V4L2_TUNER_MODE_LANG1_LANG2:
- mode = V4L2_TUNER_MODE_STEREO;
- break;
- default:
- return -EINVAL;
- }
- chip->audmode = vt->audmode;
+ chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+ if (!chip)
+ return -ENOMEM;
+ sd = &chip->sd;
+ v4l2_i2c_subdev_init(sd, client, &tvaudio_ops);
- if (desc->setmode && mode) {
- chip->watch_stereo = 0;
- /* del_timer(&chip->wt); */
- chip->mode = mode;
- desc->setmode(chip, mode);
- }
+ /* 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;
}
- case VIDIOC_G_TUNER:
- {
- struct v4l2_tuner *vt = arg;
- int mode = V4L2_TUNER_MODE_MONO;
+ if (desc->name == NULL) {
+ v4l2_dbg(1, debug, sd, "no matching chip description found\n");
+ kfree(chip);
+ 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" : "");
+ }
- if (chip->radio)
- break;
- vt->audmode = chip->audmode;
- vt->rxsubchans = 0;
- vt->capability = V4L2_TUNER_CAP_STEREO |
- V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
+ /* fill required data structures */
+ if (!id)
+ strlcpy(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;
- if (desc->getmode)
- mode = desc->getmode(chip);
+ /* initialization */
+ if (desc->initialize != NULL)
+ desc->initialize(chip);
+ else
+ chip_cmd(chip, "init", &desc->init);
- if (mode & V4L2_TUNER_MODE_MONO)
- vt->rxsubchans |= V4L2_TUNER_SUB_MONO;
- if (mode & V4L2_TUNER_MODE_STEREO)
- vt->rxsubchans |= V4L2_TUNER_SUB_STEREO;
- /* Note: for SAP it should be mono/lang2 or stereo/lang2.
- When this module is converted fully to v4l2, then this
- should change for those chips that can detect SAP. */
- if (mode & V4L2_TUNER_MODE_LANG1)
- vt->rxsubchans = V4L2_TUNER_SUB_LANG1 |
- V4L2_TUNER_SUB_LANG2;
- break;
+ 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->left = desc->leftinit ? desc->leftinit : 65535;
+ chip->right = desc->rightinit ? desc->rightinit : 65535;
+ chip_write(chip, desc->leftreg,
+ desc->volfunc(chip->left));
+ chip_write(chip, desc->rightreg,
+ desc->volfunc(chip->right));
+ }
}
- case VIDIOC_S_STD:
- chip->radio = 0;
- break;
- case VIDIOC_S_FREQUENCY:
- chip->mode = 0; /* automatic */
-
- /* For chips that provide getmode and setmode, 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->setmode(chip,V4L2_TUNER_MODE_MONO);
- if (chip->prevmode != V4L2_TUNER_MODE_MONO)
- chip->prevmode = -1; /* reset previous mode */
- mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000));
+ 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 {
+ chip->treble = desc->trebleinit ?
+ desc->trebleinit : 32768;
+ chip->bass = desc->bassinit ?
+ desc->bassinit : 32768;
+ chip_write(chip, desc->bassreg,
+ desc->bassfunc(chip->bass));
+ chip_write(chip, desc->treblereg,
+ desc->treblefunc(chip->treble));
}
- break;
+ }
- case VIDIOC_G_CHIP_IDENT:
- return v4l2_chip_ident_i2c_client(client, arg, V4L2_IDENT_TVAUDIO, 0);
+ chip->thread = NULL;
+ if (desc->flags & CHIP_NEED_CHECKMODE) {
+ if (!desc->getmode || !desc->setmode) {
+ /* 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 */
+ init_timer(&chip->wt);
+ chip->wt.function = chip_thread_wake;
+ chip->wt.data = (unsigned long)chip;
+ chip->thread = kthread_run(chip_thread, chip, client->name);
+ if (IS_ERR(chip->thread)) {
+ v4l2_warn(sd, "failed to create kthread\n");
+ chip->thread = NULL;
+ }
}
return 0;
}
-static int chip_legacy_probe(struct i2c_adapter *adap)
+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);
+ kfree(chip);
+ return 0;
+}
+
+static int tvaudio_legacy_probe(struct i2c_adapter *adap)
{
/* don't attach on saa7146 based cards,
because dedicated drivers are used */
/* 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 chip_id[] = {
+static const struct i2c_device_id tvaudio_id[] = {
{ "tvaudio", 0 },
{ }
};
-MODULE_DEVICE_TABLE(i2c, chip_id);
+MODULE_DEVICE_TABLE(i2c, tvaudio_id);
static struct v4l2_i2c_driver_data v4l2_i2c_data = {
.name = "tvaudio",
.driverid = I2C_DRIVERID_TVAUDIO,
- .command = chip_command,
- .probe = chip_probe,
- .remove = chip_remove,
- .legacy_probe = chip_legacy_probe,
- .id_table = chip_id,
+ .command = tvaudio_command,
+ .probe = tvaudio_probe,
+ .remove = tvaudio_remove,
+ .legacy_probe = tvaudio_legacy_probe,
+ .id_table = tvaudio_id,
};
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff