/* * 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/v4l2-i2c-drv.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 */ int msp_once; /* no continous stereo monitoring */ int 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. */ int 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 processsing"); /* ---------------------------------------------------------------------- */ /* 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] = { { 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, 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] = { { 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); 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); } void msp_set_audio(struct i2c_client *client) { struct msp_state *state = to_state(i2c_get_clientdata(client)); int bal = 0, bass, treble, loudness; int val = 0; int reallymuted = state->muted | state->scan_in_progress; if (!reallymuted) val = (state->volume * 0x7f / 65535) << 8; v4l_dbg(1, msp_debug, client, "mute=%s scanning=%s volume=%d\n", state->muted ? "on" : "off", state->scan_in_progress ? "yes" : "no", state->volume); 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); 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, msp_debug, 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); } /* ------------------------------------------------------------------------ */ 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_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) { struct msp_state *state = to_state(sd); 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_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) { struct msp_state *state = to_state(sd); struct i2c_client *client = v4l2_get_subdevdata(sd); 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; } /* --- 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_set_audio(client); 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_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 (state->radio) return 0; if (state->opmode == OPMODE_AUTOSELECT) msp_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; 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_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc) { struct msp_state *state = to_state(sd); switch (qc->id) { case V4L2_CID_AUDIO_VOLUME: return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 58880); case V4L2_CID_AUDIO_MUTE: return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0); default: break; } if (!state->has_sound_processing) return -EINVAL; switch (qc->id) { case V4L2_CID_AUDIO_LOUDNESS: return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0); case V4L2_CID_AUDIO_BALANCE: case V4L2_CID_AUDIO_BASS: case V4L2_CID_AUDIO_TREBLE: return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768); 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; 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); 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/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; } static int msp_suspend(struct i2c_client *client, pm_message_t state) { v4l_dbg(1, msp_debug, client, "suspend\n"); msp_reset(client); return 0; } static int msp_resume(struct i2c_client *client) { v4l_dbg(1, msp_debug, client, "resume\n"); msp_wake_thread(client); return 0; } /* ----------------------------------------------------------------------- */ static const struct v4l2_subdev_core_ops msp_core_ops = { .log_status = msp_log_status, .g_chip_ident = msp_g_chip_ident, .g_ctrl = msp_g_ctrl, .s_ctrl = msp_s_ctrl, .queryctrl = msp_queryctrl, .s_std = msp_s_std, }; 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, .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; 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->audmode = V4L2_TUNER_MODE_STEREO; 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); /* 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_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; /* 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; } /* 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); kfree(state); return 0; } /* ----------------------------------------------------------------------- */ static const struct i2c_device_id msp_id[] = { { "msp3400", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, msp_id); static struct v4l2_i2c_driver_data v4l2_i2c_data = { .name = "msp3400", .probe = msp_probe, .remove = msp_remove, .suspend = msp_suspend, .resume = msp_resume, .id_table = msp_id, }; /* * Overrides for Emacs so that we follow Linus's tabbing style. * --------------------------------------------------------------------------- * Local variables: * c-basic-offset: 8 * End: */