diff options
Diffstat (limited to 'drivers/media/video/msp3400-driver.c')
| -rw-r--r-- | drivers/media/video/msp3400-driver.c | 1274 |
1 files changed, 1274 insertions, 0 deletions
diff --git a/drivers/media/video/msp3400-driver.c b/drivers/media/video/msp3400-driver.c new file mode 100644 index 00000000000..aa8c556b6ba --- /dev/null +++ b/drivers/media/video/msp3400-driver.c @@ -0,0 +1,1274 @@ +/* + * Programming the mspx4xx sound processor family + * + * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org> + * + * what works and what doesn't: + * + * AM-Mono + * Support for Hauppauge cards added (decoding handled by tuner) added by + * Frederic Crozat <fcrozat@mail.dotcom.fr> + * + * FM-Mono + * should work. The stereo modes are backward compatible to FM-mono, + * therefore FM-Mono should be allways available. + * + * FM-Stereo (B/G, used in germany) + * should work, with autodetect + * + * FM-Stereo (satellite) + * should work, no autodetect (i.e. default is mono, but you can + * switch to stereo -- untested) + * + * NICAM (B/G, L , used in UK, Scandinavia, Spain and France) + * should work, with autodetect. Support for NICAM was added by + * Pekka Pietikainen <pp@netppl.fi> + * + * TODO: + * - better SAT support + * + * 980623 Thomas Sailer (sailer@ife.ee.ethz.ch) + * using soundcore instead of OSS + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/videodev.h> +#include <linux/videodev2.h> +#include <media/v4l2-common.h> +#include <media/audiochip.h> +#include <linux/kthread.h> +#include <linux/suspend.h> +#include "msp3400.h" + +/* ---------------------------------------------------------------------- */ + +MODULE_DESCRIPTION("device driver for msp34xx TV sound processor"); +MODULE_AUTHOR("Gerd Knorr"); +MODULE_LICENSE("GPL"); + +/* module parameters */ +static int opmode = OPMODE_AUTO; +int debug = 0; /* debug output */ +int once = 0; /* no continous stereo monitoring */ +int amsound = 0; /* hard-wire AM sound at 6.5 Hz (france), + the autoscan seems work well only with FM... */ +int standard = 1; /* Override auto detect of audio standard, if needed. */ +int dolby = 0; + +int stereo_threshold = 0x190; /* a2 threshold for stereo/bilingual + (msp34xxg only) 0x00a0-0x03c0 */ + +/* read-only */ +module_param(opmode, int, 0444); + +/* read-write */ +module_param(once, bool, 0644); +module_param(debug, int, 0644); +module_param(stereo_threshold, int, 0644); +module_param(standard, int, 0644); +module_param(amsound, bool, 0644); +module_param(dolby, bool, 0644); + +MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect"); +MODULE_PARM_DESC(once, "No continuous stereo monitoring"); +MODULE_PARM_DESC(debug, "Enable debug messages [0-3]"); +MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo"); +MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect"); +MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan"); +MODULE_PARM_DESC(dolby, "Activates Dolby processsing"); + +/* ---------------------------------------------------------------------- */ + +/* control subaddress */ +#define I2C_MSP_CONTROL 0x00 +/* demodulator unit subaddress */ +#define I2C_MSP_DEM 0x10 +/* DSP unit subaddress */ +#define I2C_MSP_DSP 0x12 + +/* Addresses to scan */ +static unsigned short normal_i2c[] = { 0x80 >> 1, 0x88 >> 1, I2C_CLIENT_END }; +I2C_CLIENT_INSMOD; + +/* ----------------------------------------------------------------------- */ +/* functions for talking to the MSP3400C Sound processor */ + +int msp_reset(struct i2c_client *client) +{ + /* reset and read revision code */ + static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 }; + static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 }; + static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e }; + u8 read[2]; + struct i2c_msg reset[2] = { + { client->addr, I2C_M_IGNORE_NAK, 3, reset_off }, + { client->addr, I2C_M_IGNORE_NAK, 3, reset_on }, + }; + struct i2c_msg test[2] = { + { client->addr, 0, 3, write }, + { client->addr, I2C_M_RD, 2, read }, + }; + + v4l_dbg(3, client, "msp_reset\n"); + if (i2c_transfer(client->adapter, &reset[0], 1) != 1 || + i2c_transfer(client->adapter, &reset[1], 1) != 1 || + i2c_transfer(client->adapter, test, 2) != 2) { + v4l_err(client, "chip reset failed\n"); + return -1; + } + return 0; +} + +static int msp_read(struct i2c_client *client, int dev, int addr) +{ + int err, retval; + u8 write[3]; + u8 read[2]; + struct i2c_msg msgs[2] = { + { client->addr, 0, 3, write }, + { client->addr, I2C_M_RD, 2, read } + }; + + write[0] = dev + 1; + write[1] = addr >> 8; + write[2] = addr & 0xff; + + for (err = 0; err < 3; err++) { + if (i2c_transfer(client->adapter, msgs, 2) == 2) + break; + v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err, + dev, addr); + current->state = TASK_INTERRUPTIBLE; + schedule_timeout(msecs_to_jiffies(10)); + } + if (err == 3) { + v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n"); + msp_reset(client); + return -1; + } + retval = read[0] << 8 | read[1]; + v4l_dbg(3, client, "msp_read(0x%x, 0x%x): 0x%x\n", dev, addr, retval); + return retval; +} + +int msp_read_dem(struct i2c_client *client, int addr) +{ + return msp_read(client, I2C_MSP_DEM, addr); +} + +int msp_read_dsp(struct i2c_client *client, int addr) +{ + return msp_read(client, I2C_MSP_DSP, addr); +} + +static int msp_write(struct i2c_client *client, int dev, int addr, int val) +{ + int err; + u8 buffer[5]; + + buffer[0] = dev; + buffer[1] = addr >> 8; + buffer[2] = addr & 0xff; + buffer[3] = val >> 8; + buffer[4] = val & 0xff; + + v4l_dbg(3, client, "msp_write(0x%x, 0x%x, 0x%x)\n", dev, addr, val); + for (err = 0; err < 3; err++) { + if (i2c_master_send(client, buffer, 5) == 5) + break; + v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err, + dev, addr); + current->state = TASK_INTERRUPTIBLE; + schedule_timeout(msecs_to_jiffies(10)); + } + if (err == 3) { + v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n"); + msp_reset(client); + return -1; + } + return 0; +} + +int msp_write_dem(struct i2c_client *client, int addr, int val) +{ + return msp_write(client, I2C_MSP_DEM, addr, val); +} + +int msp_write_dsp(struct i2c_client *client, int addr, int val) +{ + return msp_write(client, I2C_MSP_DSP, addr, val); +} + +/* ----------------------------------------------------------------------- * + * bits 9 8 5 - SCART DSP input Select: + * 0 0 0 - SCART 1 to DSP input (reset position) + * 0 1 0 - MONO to DSP input + * 1 0 0 - SCART 2 to DSP input + * 1 1 1 - Mute DSP input + * + * bits 11 10 6 - SCART 1 Output Select: + * 0 0 0 - undefined (reset position) + * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS) + * 1 0 0 - MONO input to SCART 1 Output + * 1 1 0 - SCART 1 DA to SCART 1 Output + * 0 0 1 - SCART 2 DA to SCART 1 Output + * 0 1 1 - SCART 1 Input to SCART 1 Output + * 1 1 1 - Mute SCART 1 Output + * + * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART): + * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position) + * 0 1 0 - SCART 1 Input to SCART 2 Output + * 1 0 0 - MONO input to SCART 2 Output + * 0 0 1 - SCART 2 DA to SCART 2 Output + * 0 1 1 - SCART 2 Input to SCART 2 Output + * 1 1 0 - Mute SCART 2 Output + * + * Bits 4 to 0 should be zero. + * ----------------------------------------------------------------------- */ + +static int scarts[3][9] = { + /* MASK IN1 IN2 IN1_DA IN2_DA IN3 IN4 MONO MUTE */ + /* SCART DSP Input select */ + { 0x0320, 0x0000, 0x0200, -1, -1, 0x0300, 0x0020, 0x0100, 0x0320 }, + /* SCART1 Output select */ + { 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 }, + /* SCART2 Output select */ + { 0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 }, +}; + +static char *scart_names[] = { + "mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute" +}; + +void msp_set_scart(struct i2c_client *client, int in, int out) +{ + struct msp_state *state = i2c_get_clientdata(client); + + state->in_scart=in; + + if (in >= 1 && in <= 8 && out >= 0 && out <= 2) { + if (-1 == scarts[out][in]) + return; + + state->acb &= ~scarts[out][SCART_MASK]; + state->acb |= scarts[out][in]; + } else + state->acb = 0xf60; /* Mute Input and SCART 1 Output */ + + v4l_dbg(1, client, "scart switch: %s => %d (ACB=0x%04x)\n", + scart_names[in], out, state->acb); + msp_write_dsp(client, 0x13, state->acb); + + /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */ + msp_write_dem(client, 0x40, state->i2s_mode); +} + +void msp_set_mute(struct i2c_client *client) +{ + struct msp_state *state = i2c_get_clientdata(client); + + v4l_dbg(1, client, "mute audio\n"); + msp_write_dsp(client, 0x0000, 0); + msp_write_dsp(client, 0x0007, 1); + if (state->has_scart2_out_volume) + msp_write_dsp(client, 0x0040, 1); + if (state->has_headphones) + msp_write_dsp(client, 0x0006, 0); +} + +void msp_set_audio(struct i2c_client *client) +{ + struct msp_state *state = i2c_get_clientdata(client); + int bal = 0, bass, treble, loudness; + int val = 0; + + if (!state->muted) + val = (state->volume * 0x7f / 65535) << 8; + + v4l_dbg(1, client, "mute=%s volume=%d\n", + state->muted ? "on" : "off", state->volume); + + msp_write_dsp(client, 0x0000, val); + msp_write_dsp(client, 0x0007, state->muted ? 0x1 : (val | 0x1)); + if (state->has_scart2_out_volume) + msp_write_dsp(client, 0x0040, state->muted ? 0x1 : (val | 0x1)); + if (state->has_headphones) + msp_write_dsp(client, 0x0006, val); + if (!state->has_sound_processing) + return; + + if (val) + bal = (u8)((state->balance / 256) - 128); + bass = ((state->bass - 32768) * 0x60 / 65535) << 8; + treble = ((state->treble - 32768) * 0x60 / 65535) << 8; + loudness = state->loudness ? ((5 * 4) << 8) : 0; + + v4l_dbg(1, client, "balance=%d bass=%d treble=%d loudness=%d\n", + state->balance, state->bass, state->treble, state->loudness); + + msp_write_dsp(client, 0x0001, bal << 8); + msp_write_dsp(client, 0x0002, bass); + msp_write_dsp(client, 0x0003, treble); + msp_write_dsp(client, 0x0004, loudness); + if (!state->has_headphones) + return; + msp_write_dsp(client, 0x0030, bal << 8); + msp_write_dsp(client, 0x0031, bass); + msp_write_dsp(client, 0x0032, treble); + msp_write_dsp(client, 0x0033, loudness); +} + +int msp_modus(struct i2c_client *client) +{ + struct msp_state *state = i2c_get_clientdata(client); + + if (state->radio) { + v4l_dbg(1, client, "video mode selected to Radio\n"); + return 0x0003; + } + + if (state->v4l2_std & V4L2_STD_PAL) { + v4l_dbg(1, client, "video mode selected to PAL\n"); + +#if 1 + /* experimental: not sure this works with all chip versions */ + return 0x7003; +#else + /* previous value, try this if it breaks ... */ + return 0x1003; +#endif + } + if (state->v4l2_std & V4L2_STD_NTSC) { + v4l_dbg(1, client, "video mode selected to NTSC\n"); + return 0x2003; + } + if (state->v4l2_std & V4L2_STD_SECAM) { + v4l_dbg(1, client, "video mode selected to SECAM\n"); + return 0x0003; + } + return 0x0003; +} + +/* ------------------------------------------------------------------------ */ + + +static void msp_wake_thread(struct i2c_client *client) +{ + struct msp_state *state = i2c_get_clientdata(client); + + if (NULL == state->kthread) + return; + msp_set_mute(client); + state->watch_stereo = 0; + state->restart = 1; + wake_up_interruptible(&state->wq); +} + +int msp_sleep(struct msp_state *state, int timeout) +{ + DECLARE_WAITQUEUE(wait, current); + + add_wait_queue(&state->wq, &wait); + if (!kthread_should_stop()) { + if (timeout < 0) { + set_current_state(TASK_INTERRUPTIBLE); + schedule(); + } else { + schedule_timeout_interruptible + (msecs_to_jiffies(timeout)); + } + } + + remove_wait_queue(&state->wq, &wait); + try_to_freeze(); + return state->restart; +} + +/* ------------------------------------------------------------------------ */ + +static int msp_mode_v4l2_to_v4l1(int rxsubchans) +{ + int mode = 0; + + if (rxsubchans & V4L2_TUNER_SUB_STEREO) + mode |= VIDEO_SOUND_STEREO; + if (rxsubchans & V4L2_TUNER_SUB_LANG2) + mode |= VIDEO_SOUND_LANG2; + if (rxsubchans & V4L2_TUNER_SUB_LANG1) + mode |= VIDEO_SOUND_LANG1; + if (mode == 0) + mode |= VIDEO_SOUND_MONO; + return mode; +} + +static int msp_mode_v4l1_to_v4l2(int mode) +{ + if (mode & VIDEO_SOUND_STEREO) + return V4L2_TUNER_MODE_STEREO; + if (mode & VIDEO_SOUND_LANG2) + return V4L2_TUNER_MODE_LANG2; + if (mode & VIDEO_SOUND_LANG1) + return V4L2_TUNER_MODE_LANG1; + return V4L2_TUNER_MODE_MONO; +} + +static void msp_any_detect_stereo(struct i2c_client *client) +{ + struct msp_state *state = i2c_get_clientdata(client); + + switch (state->opmode) { + case OPMODE_MANUAL: + case OPMODE_AUTODETECT: + autodetect_stereo(client); + break; + case OPMODE_AUTOSELECT: + msp34xxg_detect_stereo(client); + break; + } +} + +static struct v4l2_queryctrl msp_qctrl_std[] = { + { + .id = V4L2_CID_AUDIO_VOLUME, + .name = "Volume", + .minimum = 0, + .maximum = 65535, + .step = 65535/100, + .default_value = 58880, + .flags = 0, + .type = V4L2_CTRL_TYPE_INTEGER, + },{ + .id = V4L2_CID_AUDIO_MUTE, + .name = "Mute", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 1, + .flags = 0, + .type = V4L2_CTRL_TYPE_BOOLEAN, + }, +}; + +static struct v4l2_queryctrl msp_qctrl_sound_processing[] = { + { + .id = V4L2_CID_AUDIO_BALANCE, + .name = "Balance", + .minimum = 0, + .maximum = 65535, + .step = 65535/100, + .default_value = 32768, + .flags = 0, + .type = V4L2_CTRL_TYPE_INTEGER, + },{ + .id = V4L2_CID_AUDIO_BASS, + .name = "Bass", + .minimum = 0, + .maximum = 65535, + .step = 65535/100, + .default_value = 32768, + .type = V4L2_CTRL_TYPE_INTEGER, + },{ + .id = V4L2_CID_AUDIO_TREBLE, + .name = "Treble", + .minimum = 0, + .maximum = 65535, + .step = 65535/100, + .default_value = 32768, + .type = V4L2_CTRL_TYPE_INTEGER, + },{ + .id = V4L2_CID_AUDIO_LOUDNESS, + .name = "Loudness", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 1, + .flags = 0, + .type = V4L2_CTRL_TYPE_BOOLEAN, + }, +}; + + +static void msp_any_set_audmode(struct i2c_client *client, int audmode) +{ + struct msp_state *state = i2c_get_clientdata(client); + + switch (state->opmode) { + case OPMODE_MANUAL: + case OPMODE_AUTODETECT: + state->watch_stereo = 0; + msp3400c_setstereo(client, audmode); + break; + case OPMODE_AUTOSELECT: + msp34xxg_set_audmode(client, audmode); + break; + } +} + +static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl) +{ + struct msp_state *state = i2c_get_clientdata(client); + + switch (ctrl->id) { + case V4L2_CID_AUDIO_VOLUME: + ctrl->value = state->volume; + break; + + case V4L2_CID_AUDIO_MUTE: + ctrl->value = state->muted; + break; + + case V4L2_CID_AUDIO_BALANCE: + if (!state->has_sound_processing) + return -EINVAL; + ctrl->value = state->balance; + break; + + case V4L2_CID_AUDIO_BASS: + if (!state->has_sound_processing) + return -EINVAL; + ctrl->value = state->bass; + break; + + case V4L2_CID_AUDIO_TREBLE: + if (!state->has_sound_processing) + return -EINVAL; + ctrl->value = state->treble; + break; + + case V4L2_CID_AUDIO_LOUDNESS: + if (!state->has_sound_processing) + return -EINVAL; + ctrl->value = state->loudness; + break; + + default: + return -EINVAL; + } + return 0; +} + +static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl) +{ + struct msp_state *state = i2c_get_clientdata(client); + + switch (ctrl->id) { + case V4L2_CID_AUDIO_VOLUME: + state->volume = ctrl->value; + if (state->volume == 0) + state->balance = 32768; + break; + + case V4L2_CID_AUDIO_MUTE: + if (ctrl->value < 0 || ctrl->value >= 2) + return -ERANGE; + state->muted = ctrl->value; + break; + + case V4L2_CID_AUDIO_BASS: + if (!state->has_sound_processing) + return -EINVAL; + state->bass = ctrl->value; + break; + + case V4L2_CID_AUDIO_TREBLE: + if (!state->has_sound_processing) + return -EINVAL; + state->treble = ctrl->value; + break; + + case V4L2_CID_AUDIO_LOUDNESS: + if (!state->has_sound_processing) + return -EINVAL; + state->loudness = ctrl->value; + break; + + case V4L2_CID_AUDIO_BALANCE: + if (!state->has_sound_processing) + return -EINVAL; + state->balance = ctrl->value; + break; + + default: + return -EINVAL; + } + msp_set_audio(client); + return 0; +} + +static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg) +{ + struct msp_state *state = i2c_get_clientdata(client); + u16 *sarg = arg; + int scart = 0; + + if (debug >= 2) + v4l_i2c_print_ioctl(client, cmd); + + switch (cmd) { + case AUDC_SET_INPUT: + if (*sarg == state->input) + break; + state->input = *sarg; + switch (*sarg) { + case AUDIO_RADIO: + /* Hauppauge uses IN2 for the radio */ + state->mode = MSP_MODE_FM_RADIO; + scart = SCART_IN2; + break; + case AUDIO_EXTERN_1: + /* IN1 is often used for external input ... */ + state->mode = MSP_MODE_EXTERN; + scart = SCART_IN1; + break; + case AUDIO_EXTERN_2: + /* ... sometimes it is IN2 through ;) */ + state->mode = MSP_MODE_EXTERN; + scart = SCART_IN2; + break; + case AUDIO_TUNER: + state->mode = -1; + break; + default: + if (*sarg & AUDIO_MUTE) + msp_set_scart(client, SCART_MUTE, 0); + break; + } + if (scart) { + state->rxsubchans = V4L2_TUNER_SUB_STEREO; + state->audmode = V4L2_TUNER_MODE_STEREO; + msp_set_scart(client, scart, 0); + msp_write_dsp(client, 0x000d, 0x1900); + if (state->opmode != OPMODE_AUTOSELECT) + msp3400c_setstereo(client, state->audmode); + } + msp_wake_thread(client); + break; + + case AUDC_SET_RADIO: + if (state->radio) + return 0; + state->radio = 1; + v4l_dbg(1, client, "switching to radio mode\n"); + state->watch_stereo = 0; + switch (state->opmode) { + case OPMODE_MANUAL: + /* set msp3400 to FM radio mode */ + msp3400c_setmode(client, MSP_MODE_FM_RADIO); + msp3400c_setcarrier(client, MSP_CARRIER(10.7), + MSP_CARRIER(10.7)); + msp_set_audio(client); + break; + case OPMODE_AUTODETECT: + case OPMODE_AUTOSELECT: + /* the thread will do for us */ + msp_wake_thread(client); + break; + } + break; + + /* --- v4l ioctls --- */ + /* take care: bttv does userspace copying, we'll get a + kernel pointer here... */ + case VIDIOCGAUDIO: + { + struct video_audio *va = arg; + + va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_MUTABLE; + if (state->has_sound_processing) + va->flags |= VIDEO_AUDIO_BALANCE | + VIDEO_AUDIO_BASS | + VIDEO_AUDIO_TREBLE; + if (state->muted) + va->flags |= VIDEO_AUDIO_MUTE; + va->volume = state->volume; + va->balance = state->volume ? state->balance : 32768; + va->bass = state->bass; + va->treble = state->treble; + + if (state->radio) + break; + if (state->opmode == OPMODE_AUTOSELECT) + msp_any_detect_stereo(client); + va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans); + break; + } + + case VIDIOCSAUDIO: + { + struct video_audio *va = arg; + + state->muted = (va->flags & VIDEO_AUDIO_MUTE); + state->volume = va->volume; + state->balance = va->balance; + state->bass = va->bass; + state->treble = va->treble; + msp_set_audio(client); + + if (va->mode != 0 && state->radio == 0) + msp_any_set_audmode(client, msp_mode_v4l1_to_v4l2(va->mode)); + break; + } + + case VIDIOCSCHAN: + { + struct video_channel *vc = arg; + int update = 0; + v4l2_std_id std; + + if (state->radio) + update = 1; + state->radio = 0; + if (vc->norm == VIDEO_MODE_PAL) + std = V4L2_STD_PAL; + else if (vc->norm == VIDEO_MODE_SECAM) + std = V4L2_STD_SECAM; + else + std = V4L2_STD_NTSC; + if (std != state->v4l2_std) { + state->v4l2_std = std; + update = 1; + } + if (update) + msp_wake_thread(client); + break; + } + + case VIDIOCSFREQ: + case VIDIOC_S_FREQUENCY: + { + /* new channel -- kick audio carrier scan */ + msp_wake_thread(client); + break; + } + + /* msp34xx specific */ + case MSP_SET_MATRIX: + { + struct msp_matrix *mspm = arg; + + msp_set_scart(client, mspm->input, mspm->output); + break; + } + + /* --- v4l2 ioctls --- */ + case VIDIOC_S_STD: + { + v4l2_std_id *id = arg; + int update = state->radio || state->v4l2_std != *id; + + state->v4l2_std = *id; + state->radio = 0; + if (update) + msp_wake_thread(client); + return 0; + } + + case VIDIOC_ENUMINPUT: + { + struct v4l2_input *i = arg; + + if (i->index != 0) + return -EINVAL; + + i->type = V4L2_INPUT_TYPE_TUNER; + switch (i->index) { + case AUDIO_RADIO: + strcpy(i->name, "Radio"); + break; + case AUDIO_EXTERN_1: + strcpy(i->name, "Extern 1"); + break; + case AUDIO_EXTERN_2: + strcpy(i->name, "Extern 2"); + break; + case AUDIO_TUNER: + strcpy(i->name, "Television"); + break; + default: + return -EINVAL; + } + return 0; + } + + case VIDIOC_G_AUDIO: + { + struct v4l2_audio *a = arg; + + memset(a, 0, sizeof(*a)); + + switch (a->index) { + case AUDIO_RADIO: + strcpy(a->name, "Radio"); + break; + case AUDIO_EXTERN_1: + strcpy(a->name, "Extern 1"); + break; + case AUDIO_EXTERN_2: + strcpy(a->name, "Extern 2"); + break; + case AUDIO_TUNER: + strcpy(a->name, "Television"); + break; + default: + return -EINVAL; + } + + msp_any_detect_stereo(client); + if (state->audmode == V4L2_TUNER_MODE_STEREO) { + a->capability = V4L2_AUDCAP_STEREO; + } + + break; + } + + case VIDIOC_S_AUDIO: + { + struct v4l2_audio *sarg = arg; + + switch (sarg->index) { + case AUDIO_RADIO: + /* Hauppauge uses IN2 for the radio */ + state->mode = MSP_MODE_FM_RADIO; + scart = SCART_IN2; + break; + case AUDIO_EXTERN_1: + /* IN1 is often used for external input ... */ + state->mode = MSP_MODE_EXTERN; + scart = SCART_IN1; + break; + case AUDIO_EXTERN_2: + /* ... sometimes it is IN2 through ;) */ + state->mode = MSP_MODE_EXTERN; + scart = SCART_IN2; + break; + case AUDIO_TUNER: + state->mode = -1; + break; + } + if (scart) { + state->rxsubchans = V4L2_TUNER_SUB_STEREO; + state->audmode = V4L2_TUNER_MODE_STEREO; + msp_set_scart(client, scart, 0); + msp_write_dsp(client, 0x000d, 0x1900); + } + if (sarg->capability == V4L2_AUDCAP_STEREO) { + state->audmode = V4L2_TUNER_MODE_STEREO; + } else { + state->audmode &= ~V4L2_TUNER_MODE_STEREO; + } + msp_any_set_audmode(client, state->audmode); + msp_wake_thread(client); + break; + } + + case VIDIOC_G_TUNER: + { + struct v4l2_tuner *vt = arg; + + if (state->radio) + break; + if (state->opmode == OPMODE_AUTOSELECT) + msp_any_detect_stereo(client); + vt->audmode = state->audmode; + vt->rxsubchans = state->rxsubchans; + vt->capability = V4L2_TUNER_CAP_STEREO | + V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2; + break; + } + + case VIDIOC_S_TUNER: + { + struct v4l2_tuner *vt = (struct v4l2_tuner *)arg; + + if (state->radio) + break; + /* only set audmode */ + if (vt->audmode != -1 && vt->audmode != 0) + msp_any_set_audmode(client, vt->audmode); + break; + } + + case VIDIOC_G_AUDOUT: + { + struct v4l2_audioout *a = (struct v4l2_audioout *)arg; + int idx = a->index; + + memset(a, 0, sizeof(*a)); + + switch (idx) { + case 0: + strcpy(a->name, "Scart1 Out"); + break; + case 1: + strcpy(a->name, "Scart2 Out"); + break; + case 2: + strcpy(a->name, "I2S Out"); + break; + default: + return -EINVAL; + } + break; + + } + + case VIDIOC_S_AUDOUT: + { + struct v4l2_audioout *a = (struct v4l2_audioout *)arg; + + if (a->index < 0 || a->index > 2) + return -EINVAL; + + v4l_dbg(1, client, "Setting audio out on msp34xx to input %i\n", a->index); + msp_set_scart(client, state->in_scart, a->index + 1); + + break; + } + + case VIDIOC_INT_I2S_CLOCK_FREQ: + { + u32 *a = (u32 *)arg; + + v4l_dbg(1, client, "Setting I2S speed to %d\n", *a); + + switch (*a) { + case 1024000: + state->i2s_mode = 0; + break; + case 2048000: + state->i2s_mode = 1; + break; + default: + return -EINVAL; + } + break; + } + + case VIDIOC_QUERYCTRL: + { + struct v4l2_queryctrl *qc = arg; + int i; + + for (i = 0; i < ARRAY_SIZE(msp_qctrl_std); i++) + if (qc->id && qc->id == msp_qctrl_std[i].id) { + memcpy(qc, &msp_qctrl_std[i], sizeof(*qc)); + return 0; + } + if (!state->has_sound_processing) + return -EINVAL; + for (i = 0; i < ARRAY_SIZE(msp_qctrl_sound_processing); i++) + if (qc->id && qc->id == msp_qctrl_sound_processing[i].id) { + memcpy(qc, &msp_qctrl_sound_processing[i], sizeof(*qc)); + return 0; + } + return -EINVAL; + } + + case VIDIOC_G_CTRL: + return msp_get_ctrl(client, arg); + + case VIDIOC_S_CTRL: + return msp_set_ctrl(client, arg); + + case VIDIOC_LOG_STATUS: + { + const char *p; + + if (state->opmode == OPMODE_AUTOSELECT) + msp_any_detect_stereo(client); + v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n", + client->name, state->rev1, state->rev2); + v4l_info(client, "Audio: volume %d%s\n", + state->volume, state->muted ? " (muted)" : ""); + if (state->has_sound_processing) { + v4l_info(client, "Audio: balance %d bass %d treble %d loudness %s\n", + state->balance, state->bass, state->treble, + state->loudness ? "on" : "off"); + } + switch (state->mode) { + case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break; + case MSP_MODE_FM_RADIO: p = "FM Radio"; break; + case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono + FM-stereo"; break; + case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break; + case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break; + case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break; + case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break; + case MSP_MODE_BTSC: p = "BTSC"; break; + case MSP_MODE_EXTERN: p = "External input"; break; + default: p = "unknown"; break; + } + if (state->opmode == OPMODE_MANUAL) { + v4l_info(client, "Mode: %s (%s%s)\n", p, + (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono", + (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : ""); + } else { + v4l_info(client, "Mode: %s\n", p); + v4l_info(client, "Standard: %s (%s%s)\n", + msp_standard_std_name(state->std), + (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono", + (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : ""); + } + v4l_info(client, "ACB: 0x%04x\n", state->acb); + break; + } + + default: + /* nothing */ + break; + } + return 0; +} + +static int msp_suspend(struct device * dev, pm_message_t state) +{ + struct i2c_client *client = container_of(dev, struct i2c_client, dev); + + v4l_dbg(1, client, "suspend\n"); + msp_reset(client); + return 0; +} + +static int msp_resume(struct device * dev) +{ + struct i2c_client *client = container_of(dev, struct i2c_client, dev); + + v4l_dbg(1, client, "resume\n"); + msp_wake_thread(client); + return 0; +} + +/* ----------------------------------------------------------------------- */ + +static struct i2c_driver i2c_driver; + +static int msp_attach(struct i2c_adapter *adapter, int address, int kind) +{ + struct i2c_client *client; + struct msp_state *state; + int (*thread_func)(void *data) = NULL; + int msp_hard; + int msp_family; + int msp_revision; + int msp_product, msp_prod_hi, msp_prod_lo; + int msp_rom; + + client = kmalloc(sizeof(*client), GFP_KERNEL); + if (client == NULL) + return -ENOMEM; + memset(client, 0, sizeof(*client)); + client->addr = address; + client->adapter = adapter; + client->driver = &i2c_driver; + snprintf(client->name, sizeof(client->name) - 1, "msp3400"); + + if (msp_reset(client) == -1) { + v4l_dbg(1, client, "msp3400 not found\n"); + kfree(client); + return -1; + } + + state = kmalloc(sizeof(*state), GFP_KERNEL); + if (state == NULL) { + kfree(client); + return -ENOMEM; + } + i2c_set_clientdata(client, state); + + memset(state, 0, sizeof(*state)); + state->v4l2_std = V4L2_STD_NTSC; + state->volume = 58880; /* 0db gain */ + state->balance = 32768; /* 0db gain */ + state->bass = 32768; + state->treble = 32768; + state->loudness = 0; + state->input = -1; + state->muted = 0; + state->i2s_mode = 0; + init_waitqueue_head(&state->wq); + + state->rev1 = msp_read_dsp(client, 0x1e); + if (state->rev1 != -1) + state->rev2 = msp_read_dsp(client, 0x1f); + v4l_dbg(1, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2); + if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) { + v4l_dbg(1, client, "not an msp3400 (cannot read chip version)\n"); + kfree(state); + kfree(client); + return -1; + } + + msp_set_audio(client); + + msp_family = ((state->rev1 >> 4) & 0x0f) + 3; + msp_product = (state->rev2 >> 8) & 0xff; + msp_prod_hi = msp_product / 10; + msp_prod_lo = msp_product % 10; + msp_revision = (state->rev1 & 0x0f) + '@'; + msp_hard = ((state->rev1 >> 8) & 0xff) + '@'; + msp_rom = state->rev2 & 0x1f; + snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d", + msp_family, msp_product, + msp_revision, msp_hard, msp_rom); + + /* Has NICAM support: all mspx41x and mspx45x products have NICAM */ + state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5; + /* Has radio support: was added with revision G */ + state->has_radio = msp_revision >= 'G'; + /* Has headphones output: not for stripped down products */ + state->has_headphones = msp_prod_lo < 5; + /* Has scart4 input: not in pre D revisions, not in stripped D revs */ + state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5); + /* Has scart2 and scart3 inputs and scart2 output: not in stripped + down products of the '3' family */ + state->has_scart23_in_scart2_out = msp_family >= 4 || msp_prod_lo < 5; + /* Has scart2 a volume control? Not in pre-D revisions. */ + state->has_scart2_out_volume = msp_revision > 'C' && state->has_scart23_in_scart2_out; + /* Has a configurable i2s out? */ + state->has_i2s_conf = msp_revision >= 'G' && msp_prod_lo < 7; + /* Has subwoofer output: not in pre-D revs and not in stripped down products */ + state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5; + /* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in + stripped down products */ + state->has_sound_processing = msp_prod_lo < 7; + /* Has Virtual Dolby Surround: only in msp34x1 */ + state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1; + /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */ + state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2; + + state->opmode = opmode; + if (state->opmode == OPMODE_AUTO) { + /* MSP revision G and up have both autodetect and autoselect */ + if (msp_revision >= 'G') + state->opmode = OPMODE_AUTOSELECT; + /* MSP revision D and up have autodetect */ + else if (msp_revision >= 'D') + state->opmode = OPMODE_AUTODETECT; + else + state->opmode = OPMODE_MANUAL; + } + + /* hello world :-) */ + v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name); + v4l_info(client, "%s ", client->name); + if (state->has_nicam && state->has_radio) + printk("supports nicam and radio, "); + else if (state->has_nicam) + printk("supports nicam, "); + else if (state->has_radio) + printk("supports radio, "); + printk("mode is "); + + /* version-specific initialization */ + switch (state->opmode) { + case OPMODE_MANUAL: + printk("manual"); + thread_func = msp3400c_thread; + break; + case OPMODE_AUTODETECT: + printk("autodetect"); + thread_func = msp3410d_thread; + break; + case OPMODE_AUTOSELECT: + printk("autodetect and autoselect"); + thread_func = msp34xxg_thread; + break; + } + printk("\n"); + + /* startup control thread if needed */ + if (thread_func) { + state->kthread = kthread_run(thread_func, client, "msp34xx"); + + if (state->kthread == NULL) + v4l_warn(client, "kernel_thread() failed\n"); + msp_wake_thread(client); + } + + /* done */ + i2c_attach_client(client); + + return 0; +} + +static int msp_probe(struct i2c_adapter *adapter) +{ + if (adapter->class & I2C_CLASS_TV_ANALOG) + return i2c_probe(adapter, &addr_data, msp_attach); + return 0; +} + +static int msp_detach(struct i2c_client *client) +{ + struct msp_state *state = i2c_get_clientdata(client); + int err; + + /* shutdown control thread */ + if (state->kthread) { + state->restart = 1; + kthread_stop(state->kthread); + } + msp_reset(client); + + err = i2c_detach_client(client); + if (err) { + return err; + } + + kfree(state); + kfree(client); + return 0; +} + +/* ----------------------------------------------------------------------- */ + +/* i2c implementation */ +static struct i2c_driver i2c_driver = { + .id = I2C_DRIVERID_MSP3400, + .attach_adapter = msp_probe, + .detach_client = msp_detach, + .command = msp_command, + .driver = { + .name = "msp3400", + .suspend = msp_suspend, + .resume = msp_resume, + }, +}; + +static int __init msp3400_init_module(void) +{ + return i2c_add_driver(&i2c_driver); +} + +static void __exit msp3400_cleanup_module(void) +{ + i2c_del_driver(&i2c_driver); +} + +module_init(msp3400_init_module); +module_exit(msp3400_cleanup_module); + +/* + * Overrides for Emacs so that we follow Linus's tabbing style. + * --------------------------------------------------------------------------- + * Local variables: + * c-basic-offset: 8 + * End: + */ |