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Diffstat (limited to 'drivers/media/video/tvaudio.c')
-rw-r--r--drivers/media/video/tvaudio.c175
1 files changed, 162 insertions, 13 deletions
diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c
index 5aeccb301cea..226bf3565ac9 100644
--- a/drivers/media/video/tvaudio.c
+++ b/drivers/media/video/tvaudio.c
@@ -26,7 +26,7 @@
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/slab.h>
-#include <linux/videodev.h>
+#include <linux/videodev2.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/kthread.h>
@@ -54,7 +54,7 @@ MODULE_LICENSE("GPL");
/* ---------------------------------------------------------------------- */
/* our structs */
-#define MAXREGS 64
+#define MAXREGS 256
struct CHIPSTATE;
typedef int (*getvalue)(int);
@@ -1047,6 +1047,116 @@ static int tda9874a_initialize(struct CHIPSTATE *chip)
return 0;
}
+/* ---------------------------------------------------------------------- */
+/* audio chip description - defines+functions for tda9875 */
+/* The TDA9875 is made by Philips Semiconductor
+ * http://www.semiconductors.philips.com
+ * TDA9875: I2C-bus controlled DSP audio processor, FM demodulator
+ *
+ */
+
+/* subaddresses for TDA9875 */
+#define TDA9875_MUT 0x12 /*General mute (value --> 0b11001100*/
+#define TDA9875_CFG 0x01 /* Config register (value --> 0b00000000 */
+#define TDA9875_DACOS 0x13 /*DAC i/o select (ADC) 0b0000100*/
+#define TDA9875_LOSR 0x16 /*Line output select regirter 0b0100 0001*/
+
+#define TDA9875_CH1V 0x0c /*Channel 1 volume (mute)*/
+#define TDA9875_CH2V 0x0d /*Channel 2 volume (mute)*/
+#define TDA9875_SC1 0x14 /*SCART 1 in (mono)*/
+#define TDA9875_SC2 0x15 /*SCART 2 in (mono)*/
+
+#define TDA9875_ADCIS 0x17 /*ADC input select (mono) 0b0110 000*/
+#define TDA9875_AER 0x19 /*Audio effect (AVL+Pseudo) 0b0000 0110*/
+#define TDA9875_MCS 0x18 /*Main channel select (DAC) 0b0000100*/
+#define TDA9875_MVL 0x1a /* Main volume gauche */
+#define TDA9875_MVR 0x1b /* Main volume droite */
+#define TDA9875_MBA 0x1d /* Main Basse */
+#define TDA9875_MTR 0x1e /* Main treble */
+#define TDA9875_ACS 0x1f /* Auxilary channel select (FM) 0b0000000*/
+#define TDA9875_AVL 0x20 /* Auxilary volume gauche */
+#define TDA9875_AVR 0x21 /* Auxilary volume droite */
+#define TDA9875_ABA 0x22 /* Auxilary Basse */
+#define TDA9875_ATR 0x23 /* Auxilary treble */
+
+#define TDA9875_MSR 0x02 /* Monitor select register */
+#define TDA9875_C1MSB 0x03 /* Carrier 1 (FM) frequency register MSB */
+#define TDA9875_C1MIB 0x04 /* Carrier 1 (FM) frequency register (16-8]b */
+#define TDA9875_C1LSB 0x05 /* Carrier 1 (FM) frequency register LSB */
+#define TDA9875_C2MSB 0x06 /* Carrier 2 (nicam) frequency register MSB */
+#define TDA9875_C2MIB 0x07 /* Carrier 2 (nicam) frequency register (16-8]b */
+#define TDA9875_C2LSB 0x08 /* Carrier 2 (nicam) frequency register LSB */
+#define TDA9875_DCR 0x09 /* Demodulateur configuration regirter*/
+#define TDA9875_DEEM 0x0a /* FM de-emphasis regirter*/
+#define TDA9875_FMAT 0x0b /* FM Matrix regirter*/
+
+/* values */
+#define TDA9875_MUTE_ON 0xff /* general mute */
+#define TDA9875_MUTE_OFF 0xcc /* general no mute */
+
+static int tda9875_initialize(struct CHIPSTATE *chip)
+{
+ chip_write(chip, TDA9875_CFG, 0xd0); /*reg de config 0 (reset)*/
+ chip_write(chip, TDA9875_MSR, 0x03); /* Monitor 0b00000XXX*/
+ chip_write(chip, TDA9875_C1MSB, 0x00); /*Car1(FM) MSB XMHz*/
+ chip_write(chip, TDA9875_C1MIB, 0x00); /*Car1(FM) MIB XMHz*/
+ chip_write(chip, TDA9875_C1LSB, 0x00); /*Car1(FM) LSB XMHz*/
+ chip_write(chip, TDA9875_C2MSB, 0x00); /*Car2(NICAM) MSB XMHz*/
+ chip_write(chip, TDA9875_C2MIB, 0x00); /*Car2(NICAM) MIB XMHz*/
+ chip_write(chip, TDA9875_C2LSB, 0x00); /*Car2(NICAM) LSB XMHz*/
+ chip_write(chip, TDA9875_DCR, 0x00); /*Demod config 0x00*/
+ chip_write(chip, TDA9875_DEEM, 0x44); /*DE-Emph 0b0100 0100*/
+ chip_write(chip, TDA9875_FMAT, 0x00); /*FM Matrix reg 0x00*/
+ chip_write(chip, TDA9875_SC1, 0x00); /* SCART 1 (SC1)*/
+ chip_write(chip, TDA9875_SC2, 0x01); /* SCART 2 (sc2)*/
+
+ chip_write(chip, TDA9875_CH1V, 0x10); /* Channel volume 1 mute*/
+ chip_write(chip, TDA9875_CH2V, 0x10); /* Channel volume 2 mute */
+ chip_write(chip, TDA9875_DACOS, 0x02); /* sig DAC i/o(in:nicam)*/
+ chip_write(chip, TDA9875_ADCIS, 0x6f); /* sig ADC input(in:mono)*/
+ chip_write(chip, TDA9875_LOSR, 0x00); /* line out (in:mono)*/
+ chip_write(chip, TDA9875_AER, 0x00); /*06 Effect (AVL+PSEUDO) */
+ chip_write(chip, TDA9875_MCS, 0x44); /* Main ch select (DAC) */
+ chip_write(chip, TDA9875_MVL, 0x03); /* Vol Main left 10dB */
+ chip_write(chip, TDA9875_MVR, 0x03); /* Vol Main right 10dB*/
+ chip_write(chip, TDA9875_MBA, 0x00); /* Main Bass Main 0dB*/
+ chip_write(chip, TDA9875_MTR, 0x00); /* Main Treble Main 0dB*/
+ chip_write(chip, TDA9875_ACS, 0x44); /* Aux chan select (dac)*/
+ chip_write(chip, TDA9875_AVL, 0x00); /* Vol Aux left 0dB*/
+ chip_write(chip, TDA9875_AVR, 0x00); /* Vol Aux right 0dB*/
+ chip_write(chip, TDA9875_ABA, 0x00); /* Aux Bass Main 0dB*/
+ chip_write(chip, TDA9875_ATR, 0x00); /* Aux Aigus Main 0dB*/
+
+ chip_write(chip, TDA9875_MUT, 0xcc); /* General mute */
+ return 0;
+}
+
+static int tda9875_volume(int val) { return (unsigned char)(val / 602 - 84); }
+static int tda9875_bass(int val) { return (unsigned char)(max(-12, val / 2115 - 15)); }
+static int tda9875_treble(int val) { return (unsigned char)(val / 2622 - 12); }
+
+/* ----------------------------------------------------------------------- */
+
+
+/* *********************** *
+ * i2c interface functions *
+ * *********************** */
+
+static int tda9875_checkit(struct CHIPSTATE *chip)
+{
+ struct v4l2_subdev *sd = &chip->sd;
+ int dic, rev;
+
+ dic = chip_read2(chip, 254);
+ rev = chip_read2(chip, 255);
+
+ if (dic == 0 || dic == 2) { /* tda9875 and tda9875A */
+ v4l2_info(sd, "found tda9875%s rev. %d.\n",
+ dic == 0 ? "" : "A", rev);
+ return 1;
+ }
+ return 0;
+}
/* ---------------------------------------------------------------------- */
/* audio chip descriptions - defines+functions for tea6420 */
@@ -1280,6 +1390,7 @@ static int tda9850 = 1;
static int tda9855 = 1;
static int tda9873 = 1;
static int tda9874a = 1;
+static int tda9875 = 1;
static int tea6300; /* default 0 - address clash with msp34xx */
static int tea6320; /* default 0 - address clash with msp34xx */
static int tea6420 = 1;
@@ -1292,6 +1403,7 @@ module_param(tda9850, int, 0444);
module_param(tda9855, int, 0444);
module_param(tda9873, int, 0444);
module_param(tda9874a, int, 0444);
+module_param(tda9875, int, 0444);
module_param(tea6300, int, 0444);
module_param(tea6320, int, 0444);
module_param(tea6420, int, 0444);
@@ -1349,6 +1461,26 @@ static struct CHIPDESC chiplist[] = {
.setmode = tda9874a_setmode,
},
{
+ .name = "tda9875",
+ .insmodopt = &tda9875,
+ .addr_lo = I2C_ADDR_TDA9875 >> 1,
+ .addr_hi = I2C_ADDR_TDA9875 >> 1,
+ .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE,
+
+ /* callbacks */
+ .initialize = tda9875_initialize,
+ .checkit = tda9875_checkit,
+ .volfunc = tda9875_volume,
+ .bassfunc = tda9875_bass,
+ .treblefunc = tda9875_treble,
+ .leftreg = TDA9875_MVL,
+ .rightreg = TDA9875_MVR,
+ .bassreg = TDA9875_MBA,
+ .treblereg = TDA9875_MTR,
+ .leftinit = 58880,
+ .rightinit = 58880,
+ },
+ {
.name = "tda9850",
.insmodopt = &tda9850,
.addr_lo = I2C_ADDR_TDA985x_L >> 1,
@@ -1511,6 +1643,8 @@ static int tvaudio_g_ctrl(struct v4l2_subdev *sd,
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
+ if (!(desc->flags & CHIP_HAS_INPUTSEL))
+ break;
ctrl->value=chip->muted;
return 0;
case V4L2_CID_AUDIO_VOLUME:
@@ -1552,6 +1686,9 @@ static int tvaudio_s_ctrl(struct v4l2_subdev *sd,
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
+ if (!(desc->flags & CHIP_HAS_INPUTSEL))
+ break;
+
if (ctrl->value < 0 || ctrl->value >= 2)
return -ERANGE;
chip->muted = ctrl->value;
@@ -1636,21 +1773,26 @@ static int tvaudio_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
switch (qc->id) {
case V4L2_CID_AUDIO_MUTE:
+ if (desc->flags & CHIP_HAS_INPUTSEL)
+ return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
break;
case V4L2_CID_AUDIO_VOLUME:
+ if (desc->flags & CHIP_HAS_VOLUME)
+ return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 58880);
+ break;
case V4L2_CID_AUDIO_BALANCE:
- if (!(desc->flags & CHIP_HAS_VOLUME))
- return -EINVAL;
+ if (desc->flags & CHIP_HAS_VOLUME)
+ return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
break;
case V4L2_CID_AUDIO_BASS:
case V4L2_CID_AUDIO_TREBLE:
- if (!(desc->flags & CHIP_HAS_BASSTREBLE))
- return -EINVAL;
+ if (desc->flags & CHIP_HAS_BASSTREBLE)
+ return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
break;
default:
- return -EINVAL;
+ break;
}
- return v4l2_ctrl_query_fill_std(qc);
+ return -EINVAL;
}
static int tvaudio_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *rt)
@@ -1658,7 +1800,9 @@ static int tvaudio_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *
struct CHIPSTATE *chip = to_state(sd);
struct CHIPDESC *desc = chip->desc;
- if (!(desc->flags & CHIP_HAS_INPUTSEL) || rt->input >= 4)
+ if (!(desc->flags & CHIP_HAS_INPUTSEL))
+ return 0;
+ if (rt->input >= 4)
return -EINVAL;
/* There are four inputs: tuner, radio, extern and intern. */
chip->input = rt->input;
@@ -1675,8 +1819,11 @@ static int tvaudio_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
struct CHIPDESC *desc = chip->desc;
int mode = 0;
+ if (!desc->setmode)
+ return 0;
if (chip->radio)
return 0;
+
switch (vt->audmode) {
case V4L2_TUNER_MODE_MONO:
case V4L2_TUNER_MODE_STEREO:
@@ -1692,7 +1839,7 @@ static int tvaudio_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
}
chip->audmode = vt->audmode;
- if (desc->setmode && mode) {
+ if (mode) {
chip->watch_stereo = 0;
/* del_timer(&chip->wt); */
chip->mode = mode;
@@ -1707,15 +1854,17 @@ static int tvaudio_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
struct CHIPDESC *desc = chip->desc;
int mode = V4L2_TUNER_MODE_MONO;
+ if (!desc->getmode)
+ return 0;
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);
+ mode = desc->getmode(chip);
if (mode & V4L2_TUNER_MODE_MONO)
vt->rxsubchans |= V4L2_TUNER_SUB_MONO;
@@ -1901,6 +2050,7 @@ static int tvaudio_probe(struct i2c_client *client, const struct i2c_device_id *
}
chip->thread = NULL;
+ init_timer(&chip->wt);
if (desc->flags & CHIP_NEED_CHECKMODE) {
if (!desc->getmode || !desc->setmode) {
/* This shouldn't be happen. Warn user, but keep working
@@ -1910,7 +2060,6 @@ static int tvaudio_probe(struct i2c_client *client, const struct i2c_device_id *
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);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.