diff options
Diffstat (limited to 'drivers/media/i2c/msp3400-driver.c')
| -rw-r--r-- | drivers/media/i2c/msp3400-driver.c | 927 |
1 files changed, 927 insertions, 0 deletions
diff --git a/drivers/media/i2c/msp3400-driver.c b/drivers/media/i2c/msp3400-driver.c new file mode 100644 index 00000000000..766305f69a2 --- /dev/null +++ b/drivers/media/i2c/msp3400-driver.c @@ -0,0 +1,927 @@ +/* + * 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/kthread.h> +#include <linux/freezer.h> +#include <linux/videodev2.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> +#include <media/msp3400.h> +#include <media/tvaudio.h> +#include "msp3400-driver.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 msp_debug; /* msp_debug output */ +bool msp_once; /* no continuous stereo monitoring */ +bool msp_amsound; /* hard-wire AM sound at 6.5 Hz (france), + the autoscan seems work well only with FM... */ +int msp_standard = 1; /* Override auto detect of audio msp_standard, + if needed. */ +bool msp_dolby; + +int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual + (msp34xxg only) 0x00a0-0x03c0 */ + +/* read-only */ +module_param(opmode, int, 0444); + +/* read-write */ +module_param_named(once, msp_once, bool, 0644); +module_param_named(debug, msp_debug, int, 0644); +module_param_named(stereo_threshold, msp_stereo_thresh, int, 0644); +module_param_named(standard, msp_standard, int, 0644); +module_param_named(amsound, msp_amsound, bool, 0644); +module_param_named(dolby, msp_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 processing"); + +/* ---------------------------------------------------------------------- */ + +/* control subaddress */ +#define I2C_MSP_CONTROL 0x00 +/* demodulator unit subaddress */ +#define I2C_MSP_DEM 0x10 +/* DSP unit subaddress */ +#define I2C_MSP_DSP 0x12 + + +/* ----------------------------------------------------------------------- */ +/* 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] = { + { + .addr = client->addr, + .flags = I2C_M_IGNORE_NAK, + .len = 3, + .buf = reset_off + }, + { + .addr = client->addr, + .flags = I2C_M_IGNORE_NAK, + .len = 3, + .buf = reset_on + }, + }; + struct i2c_msg test[2] = { + { + .addr = client->addr, + .len = 3, + .buf = write + }, + { + .addr = client->addr, + .flags = I2C_M_RD, + .len = 2, + .buf = read + }, + }; + + v4l_dbg(3, msp_debug, 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] = { + { + .addr = client->addr, + .len = 3, + .buf = write + }, + { + .addr = client->addr, + .flags = I2C_M_RD, + .len = 2, + .buf = 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); + schedule_timeout_interruptible(msecs_to_jiffies(10)); + } + if (err == 3) { + v4l_warn(client, "resetting chip, sound will go off.\n"); + msp_reset(client); + return -1; + } + retval = read[0] << 8 | read[1]; + v4l_dbg(3, msp_debug, 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, msp_debug, 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); + schedule_timeout_interruptible(msecs_to_jiffies(10)); + } + if (err == 3) { + v4l_warn(client, "resetting chip, sound will go off.\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 IN3 IN4 IN1_DA IN2_DA MONO MUTE */ + /* SCART DSP Input select */ + { 0x0320, 0x0000, 0x0200, 0x0300, 0x0020, -1, -1, 0x0100, 0x0320 }, + /* SCART1 Output select */ + { 0x0c40, 0x0440, 0x0400, 0x0000, 0x0840, 0x0c00, 0x0040, 0x0800, 0x0c40 }, + /* SCART2 Output select */ + { 0x3080, 0x1000, 0x1080, 0x2080, 0x3080, 0x0000, 0x0080, 0x2000, 0x3000 }, +}; + +static char *scart_names[] = { + "in1", "in2", "in3", "in4", "in1 da", "in2 da", "mono", "mute" +}; + +void msp_set_scart(struct i2c_client *client, int in, int out) +{ + struct msp_state *state = to_state(i2c_get_clientdata(client)); + + state->in_scart = in; + + if (in >= 0 && in <= 7 && out >= 0 && out <= 2) { + if (-1 == scarts[out][in + 1]) + return; + + state->acb &= ~scarts[out][0]; + state->acb |= scarts[out][in + 1]; + } else + state->acb = 0xf60; /* Mute Input and SCART 1 Output */ + + v4l_dbg(1, msp_debug, 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 */ + if (state->has_i2s_conf) + msp_write_dem(client, 0x40, state->i2s_mode); +} + +/* ------------------------------------------------------------------------ */ + +static void msp_wake_thread(struct i2c_client *client) +{ + struct msp_state *state = to_state(i2c_get_clientdata(client)); + + if (NULL == state->kthread) + return; + 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_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct msp_state *state = ctrl_to_state(ctrl); + struct i2c_client *client = v4l2_get_subdevdata(&state->sd); + int val = ctrl->val; + + switch (ctrl->id) { + case V4L2_CID_AUDIO_VOLUME: { + /* audio volume cluster */ + int reallymuted = state->muted->val | state->scan_in_progress; + + if (!reallymuted) + val = (val * 0x7f / 65535) << 8; + + v4l_dbg(1, msp_debug, client, "mute=%s scanning=%s volume=%d\n", + state->muted->val ? "on" : "off", + state->scan_in_progress ? "yes" : "no", + state->volume->val); + + msp_write_dsp(client, 0x0000, val); + msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1)); + if (state->has_scart2_out_volume) + msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1)); + if (state->has_headphones) + msp_write_dsp(client, 0x0006, val); + break; + } + + case V4L2_CID_AUDIO_BASS: + val = ((val - 32768) * 0x60 / 65535) << 8; + msp_write_dsp(client, 0x0002, val); + if (state->has_headphones) + msp_write_dsp(client, 0x0031, val); + break; + + case V4L2_CID_AUDIO_TREBLE: + val = ((val - 32768) * 0x60 / 65535) << 8; + msp_write_dsp(client, 0x0003, val); + if (state->has_headphones) + msp_write_dsp(client, 0x0032, val); + break; + + case V4L2_CID_AUDIO_LOUDNESS: + val = val ? ((5 * 4) << 8) : 0; + msp_write_dsp(client, 0x0004, val); + if (state->has_headphones) + msp_write_dsp(client, 0x0033, val); + break; + + case V4L2_CID_AUDIO_BALANCE: + val = (u8)((val / 256) - 128); + msp_write_dsp(client, 0x0001, val << 8); + if (state->has_headphones) + msp_write_dsp(client, 0x0030, val << 8); + break; + + default: + return -EINVAL; + } + return 0; +} + +void msp_update_volume(struct msp_state *state) +{ + /* Force an update of the volume/mute cluster */ + v4l2_ctrl_lock(state->volume); + state->volume->val = state->volume->cur.val; + state->muted->val = state->muted->cur.val; + msp_s_ctrl(state->volume); + v4l2_ctrl_unlock(state->volume); +} + +/* --- v4l2 ioctls --- */ +static int msp_s_radio(struct v4l2_subdev *sd) +{ + struct msp_state *state = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (state->radio) + return 0; + state->radio = 1; + v4l_dbg(1, msp_debug, client, "switching to radio mode\n"); + state->watch_stereo = 0; + switch (state->opmode) { + case OPMODE_MANUAL: + /* set msp3400 to FM radio mode */ + msp3400c_set_mode(client, MSP_MODE_FM_RADIO); + msp3400c_set_carrier(client, MSP_CARRIER(10.7), + MSP_CARRIER(10.7)); + msp_update_volume(state); + break; + case OPMODE_AUTODETECT: + case OPMODE_AUTOSELECT: + /* the thread will do for us */ + msp_wake_thread(client); + break; + } + return 0; +} + +static int msp_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *freq) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + /* new channel -- kick audio carrier scan */ + msp_wake_thread(client); + return 0; +} + +static int msp_querystd(struct v4l2_subdev *sd, v4l2_std_id *id) +{ + struct msp_state *state = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + + *id &= state->detected_std; + + v4l_dbg(2, msp_debug, client, + "detected standard: %s(0x%08Lx)\n", + msp_standard_std_name(state->std), state->detected_std); + + return 0; +} + +static int msp_s_std(struct v4l2_subdev *sd, v4l2_std_id id) +{ + struct msp_state *state = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + int update = state->radio || state->v4l2_std != id; + + state->v4l2_std = id; + state->radio = 0; + if (update) + msp_wake_thread(client); + return 0; +} + +static int msp_s_routing(struct v4l2_subdev *sd, + u32 input, u32 output, u32 config) +{ + struct msp_state *state = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + int tuner = (input >> 3) & 1; + int sc_in = input & 0x7; + int sc1_out = output & 0xf; + int sc2_out = (output >> 4) & 0xf; + u16 val, reg; + int i; + int extern_input = 1; + + if (state->route_in == input && state->route_out == output) + return 0; + state->route_in = input; + state->route_out = output; + /* check if the tuner input is used */ + for (i = 0; i < 5; i++) { + if (((input >> (4 + i * 4)) & 0xf) == 0) + extern_input = 0; + } + state->mode = extern_input ? MSP_MODE_EXTERN : MSP_MODE_AM_DETECT; + state->rxsubchans = V4L2_TUNER_SUB_STEREO; + msp_set_scart(client, sc_in, 0); + msp_set_scart(client, sc1_out, 1); + msp_set_scart(client, sc2_out, 2); + msp_set_audmode(client); + reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb; + val = msp_read_dem(client, reg); + msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8)); + /* wake thread when a new input is chosen */ + msp_wake_thread(client); + return 0; +} + +static int msp_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) +{ + struct msp_state *state = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (vt->type != V4L2_TUNER_ANALOG_TV) + return 0; + if (!state->radio) { + if (state->opmode == OPMODE_AUTOSELECT) + msp_detect_stereo(client); + vt->rxsubchans = state->rxsubchans; + } + vt->audmode = state->audmode; + vt->capability |= V4L2_TUNER_CAP_STEREO | + V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2; + return 0; +} + +static int msp_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) +{ + struct msp_state *state = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (state->radio) /* TODO: add mono/stereo support for radio */ + return 0; + if (state->audmode == vt->audmode) + return 0; + state->audmode = vt->audmode; + /* only set audmode */ + msp_set_audmode(client); + return 0; +} + +static int msp_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq) +{ + struct msp_state *state = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + + v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", freq); + + switch (freq) { + case 1024000: + state->i2s_mode = 0; + break; + case 2048000: + state->i2s_mode = 1; + break; + default: + return -EINVAL; + } + return 0; +} + +static int msp_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) +{ + struct msp_state *state = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + + return v4l2_chip_ident_i2c_client(client, chip, state->ident, + (state->rev1 << 16) | state->rev2); +} + +static int msp_log_status(struct v4l2_subdev *sd) +{ + struct msp_state *state = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + const char *p; + char prefix[V4L2_SUBDEV_NAME_SIZE + 20]; + + if (state->opmode == OPMODE_AUTOSELECT) + msp_detect_stereo(client); + v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n", + client->name, state->rev1, state->rev2); + snprintf(prefix, sizeof(prefix), "%s: Audio: ", sd->name); + v4l2_ctrl_handler_log_status(&state->hdl, prefix); + 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 = "Terrestrial FM-mono/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->mode == MSP_MODE_EXTERN) { + v4l_info(client, "Mode: %s\n", p); + } else 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 { + if (state->opmode == OPMODE_AUTODETECT) + 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, "Audmode: 0x%04x\n", state->audmode); + v4l_info(client, "Routing: 0x%08x (input) 0x%08x (output)\n", + state->route_in, state->route_out); + v4l_info(client, "ACB: 0x%04x\n", state->acb); + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int msp_suspend(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + v4l_dbg(1, msp_debug, client, "suspend\n"); + msp_reset(client); + return 0; +} + +static int msp_resume(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + v4l_dbg(1, msp_debug, client, "resume\n"); + msp_wake_thread(client); + return 0; +} +#endif + +/* ----------------------------------------------------------------------- */ + +static const struct v4l2_ctrl_ops msp_ctrl_ops = { + .s_ctrl = msp_s_ctrl, +}; + +static const struct v4l2_subdev_core_ops msp_core_ops = { + .log_status = msp_log_status, + .g_chip_ident = msp_g_chip_ident, + .g_ext_ctrls = v4l2_subdev_g_ext_ctrls, + .try_ext_ctrls = v4l2_subdev_try_ext_ctrls, + .s_ext_ctrls = v4l2_subdev_s_ext_ctrls, + .g_ctrl = v4l2_subdev_g_ctrl, + .s_ctrl = v4l2_subdev_s_ctrl, + .queryctrl = v4l2_subdev_queryctrl, + .querymenu = v4l2_subdev_querymenu, + .s_std = msp_s_std, +}; + +static const struct v4l2_subdev_video_ops msp_video_ops = { + .querystd = msp_querystd, +}; + +static const struct v4l2_subdev_tuner_ops msp_tuner_ops = { + .s_frequency = msp_s_frequency, + .g_tuner = msp_g_tuner, + .s_tuner = msp_s_tuner, + .s_radio = msp_s_radio, +}; + +static const struct v4l2_subdev_audio_ops msp_audio_ops = { + .s_routing = msp_s_routing, + .s_i2s_clock_freq = msp_s_i2s_clock_freq, +}; + +static const struct v4l2_subdev_ops msp_ops = { + .core = &msp_core_ops, + .video = &msp_video_ops, + .tuner = &msp_tuner_ops, + .audio = &msp_audio_ops, +}; + +/* ----------------------------------------------------------------------- */ + +static int msp_probe(struct i2c_client *client, const struct i2c_device_id *id) +{ + struct msp_state *state; + struct v4l2_subdev *sd; + struct v4l2_ctrl_handler *hdl; + 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; + + if (!id) + strlcpy(client->name, "msp3400", sizeof(client->name)); + + if (msp_reset(client) == -1) { + v4l_dbg(1, msp_debug, client, "msp3400 not found\n"); + return -ENODEV; + } + + state = kzalloc(sizeof(*state), GFP_KERNEL); + if (!state) + return -ENOMEM; + + sd = &state->sd; + v4l2_i2c_subdev_init(sd, client, &msp_ops); + + state->v4l2_std = V4L2_STD_NTSC; + state->detected_std = V4L2_STD_ALL; + state->audmode = V4L2_TUNER_MODE_STEREO; + state->input = -1; + state->i2s_mode = 0; + init_waitqueue_head(&state->wq); + /* These are the reset input/output positions */ + state->route_in = MSP_INPUT_DEFAULT; + state->route_out = MSP_OUTPUT_DEFAULT; + + state->rev1 = msp_read_dsp(client, 0x1e); + if (state->rev1 != -1) + state->rev2 = msp_read_dsp(client, 0x1f); + v4l_dbg(1, msp_debug, 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, msp_debug, client, + "not an msp3400 (cannot read chip version)\n"); + kfree(state); + return -ENODEV; + } + + 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; + /* Rev B=2, C=3, D=4, G=7 */ + state->ident = msp_family * 10000 + 4000 + msp_product * 10 + + msp_revision - '@'; + + /* 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 scart2 input: not in stripped down products of the '3' family */ + state->has_scart2 = + msp_family >= 4 || msp_prod_lo < 7; + /* Has scart3 input: not in stripped down products of the '3' family */ + state->has_scart3 = + msp_family >= 4 || 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 output: not in stripped down products of + * the '3' family */ + state->has_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_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; + /* The msp343xG supports BTSC only and cannot do Automatic Standard + * Detection. */ + state->force_btsc = + msp_family == 3 && msp_revision == 'G' && msp_prod_hi == 3; + + 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; + } + + hdl = &state->hdl; + v4l2_ctrl_handler_init(hdl, 6); + if (state->has_sound_processing) { + v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, + V4L2_CID_AUDIO_BASS, 0, 65535, 65535 / 100, 32768); + v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, + V4L2_CID_AUDIO_TREBLE, 0, 65535, 65535 / 100, 32768); + v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, + V4L2_CID_AUDIO_LOUDNESS, 0, 1, 1, 0); + } + state->volume = v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, + V4L2_CID_AUDIO_VOLUME, 0, 65535, 65535 / 100, 58880); + v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, + V4L2_CID_AUDIO_BALANCE, 0, 65535, 65535 / 100, 32768); + state->muted = v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, + V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); + sd->ctrl_handler = hdl; + if (hdl->error) { + int err = hdl->error; + + v4l2_ctrl_handler_free(hdl); + kfree(state); + return err; + } + + v4l2_ctrl_cluster(2, &state->volume); + v4l2_ctrl_handler_setup(hdl); + + /* hello world :-) */ + v4l_info(client, "MSP%d4%02d%c-%c%d found @ 0x%x (%s)\n", + msp_family, msp_product, + msp_revision, msp_hard, msp_rom, + client->addr << 1, client->adapter->name); + v4l_info(client, "%s ", client->name); + if (state->has_nicam && state->has_radio) + printk(KERN_CONT "supports nicam and radio, "); + else if (state->has_nicam) + printk(KERN_CONT "supports nicam, "); + else if (state->has_radio) + printk(KERN_CONT "supports radio, "); + printk(KERN_CONT "mode is "); + + /* version-specific initialization */ + switch (state->opmode) { + case OPMODE_MANUAL: + printk(KERN_CONT "manual"); + thread_func = msp3400c_thread; + break; + case OPMODE_AUTODETECT: + printk(KERN_CONT "autodetect"); + thread_func = msp3410d_thread; + break; + case OPMODE_AUTOSELECT: + printk(KERN_CONT "autodetect and autoselect"); + thread_func = msp34xxg_thread; + break; + } + printk(KERN_CONT "\n"); + + /* startup control thread if needed */ + if (thread_func) { + state->kthread = kthread_run(thread_func, client, "msp34xx"); + + if (IS_ERR(state->kthread)) + v4l_warn(client, "kernel_thread() failed\n"); + msp_wake_thread(client); + } + return 0; +} + +static int msp_remove(struct i2c_client *client) +{ + struct msp_state *state = to_state(i2c_get_clientdata(client)); + + v4l2_device_unregister_subdev(&state->sd); + /* shutdown control thread */ + if (state->kthread) { + state->restart = 1; + kthread_stop(state->kthread); + } + msp_reset(client); + + v4l2_ctrl_handler_free(&state->hdl); + kfree(state); + return 0; +} + +/* ----------------------------------------------------------------------- */ + +static const struct dev_pm_ops msp3400_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(msp_suspend, msp_resume) +}; + +static const struct i2c_device_id msp_id[] = { + { "msp3400", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, msp_id); + +static struct i2c_driver msp_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "msp3400", + .pm = &msp3400_pm_ops, + }, + .probe = msp_probe, + .remove = msp_remove, + .id_table = msp_id, +}; + +module_i2c_driver(msp_driver); + +/* + * Overrides for Emacs so that we follow Linus's tabbing style. + * --------------------------------------------------------------------------- + * Local variables: + * c-basic-offset: 8 + * End: + */ |