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-rw-r--r--drivers/media/i2c/msp3400-driver.c900
1 files changed, 900 insertions, 0 deletions
diff --git a/drivers/media/i2c/msp3400-driver.c b/drivers/media/i2c/msp3400-driver.c
new file mode 100644
index 0000000000..bec7680148
--- /dev/null
+++ b/drivers/media/i2c/msp3400-driver.c
@@ -0,0 +1,900 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * 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 always 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
+ */
+
+
+#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/drv-intf/msp3400.h>
+#include <media/i2c/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
+ },
+ };
+
+ dev_dbg_lvl(&client->dev, 3, msp_debug, "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) {
+ dev_err(&client->dev, "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;
+ dev_warn(&client->dev, "I/O error #%d (read 0x%02x/0x%02x)\n", err,
+ dev, addr);
+ schedule_timeout_interruptible(msecs_to_jiffies(10));
+ }
+ if (err == 3) {
+ dev_warn(&client->dev, "resetting chip, sound will go off.\n");
+ msp_reset(client);
+ return -1;
+ }
+ retval = read[0] << 8 | read[1];
+ dev_dbg_lvl(&client->dev, 3, msp_debug, "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;
+
+ dev_dbg_lvl(&client->dev, 3, msp_debug, "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;
+ dev_warn(&client->dev, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
+ dev, addr);
+ schedule_timeout_interruptible(msecs_to_jiffies(10));
+ }
+ if (err == 3) {
+ dev_warn(&client->dev, "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 */
+
+ dev_dbg_lvl(&client->dev, 1, msp_debug, "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;
+
+ dev_dbg_lvl(&client->dev, 1, msp_debug, "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;
+ dev_dbg_lvl(&client->dev, 1, msp_debug, "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, const 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;
+
+ dev_dbg_lvl(&client->dev, 2, msp_debug,
+ "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, const 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);
+
+ dev_dbg_lvl(&client->dev, 1, msp_debug, "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_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);
+ dev_info(&client->dev, "%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) {
+ dev_info(&client->dev, "Mode: %s\n", p);
+ } else if (state->opmode == OPMODE_MANUAL) {
+ dev_info(&client->dev, "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)
+ dev_info(&client->dev, "Mode: %s\n", p);
+ dev_info(&client->dev, "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" : "");
+ }
+ dev_info(&client->dev, "Audmode: 0x%04x\n", state->audmode);
+ dev_info(&client->dev, "Routing: 0x%08x (input) 0x%08x (output)\n",
+ state->route_in, state->route_out);
+ dev_info(&client->dev, "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);
+ dev_dbg_lvl(&client->dev, 1, msp_debug, "suspend\n");
+ msp_reset(client);
+ return 0;
+}
+
+static int msp_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ dev_dbg_lvl(&client->dev, 1, msp_debug, "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,
+};
+
+static const struct v4l2_subdev_video_ops msp_video_ops = {
+ .s_std = msp_s_std,
+ .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 const char * const opmode_str[] = {
+ [OPMODE_MANUAL] = "manual",
+ [OPMODE_AUTODETECT] = "autodetect",
+ [OPMODE_AUTOSELECT] = "autodetect and autoselect",
+};
+
+static int msp_probe(struct i2c_client *client)
+{
+ const struct i2c_device_id *id = i2c_client_get_device_id(client);
+ 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 defined(CONFIG_MEDIA_CONTROLLER)
+ int ret;
+#endif
+
+ if (!id)
+ strscpy(client->name, "msp3400", sizeof(client->name));
+
+ if (msp_reset(client) == -1) {
+ dev_dbg_lvl(&client->dev, 1, msp_debug, "msp3400 not found\n");
+ return -ENODEV;
+ }
+
+ state = devm_kzalloc(&client->dev, sizeof(*state), GFP_KERNEL);
+ if (!state)
+ return -ENOMEM;
+
+ sd = &state->sd;
+ v4l2_i2c_subdev_init(sd, client, &msp_ops);
+
+#if defined(CONFIG_MEDIA_CONTROLLER)
+ state->pads[MSP3400_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
+ state->pads[MSP3400_PAD_IF_INPUT].sig_type = PAD_SIGNAL_AUDIO;
+ state->pads[MSP3400_PAD_OUT].flags = MEDIA_PAD_FL_SOURCE;
+ state->pads[MSP3400_PAD_OUT].sig_type = PAD_SIGNAL_AUDIO;
+
+ sd->entity.function = MEDIA_ENT_F_IF_AUD_DECODER;
+
+ ret = media_entity_pads_init(&sd->entity, 2, state->pads);
+ if (ret < 0)
+ return ret;
+#endif
+
+ 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);
+ dev_dbg_lvl(&client->dev, 1, msp_debug, "rev1=0x%04x, rev2=0x%04x\n",
+ state->rev1, state->rev2);
+ if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
+ dev_dbg_lvl(&client->dev, 1, msp_debug,
+ "not an msp3400 (cannot read chip version)\n");
+ 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_MANUAL
+ || state->opmode > OPMODE_AUTOSELECT) {
+ /* 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);
+ return err;
+ }
+
+ v4l2_ctrl_cluster(2, &state->volume);
+ v4l2_ctrl_handler_setup(hdl);
+
+ dev_info(&client->dev,
+ "MSP%d4%02d%c-%c%d found on %s: supports %s%s%s, mode is %s\n",
+ msp_family, msp_product,
+ msp_revision, msp_hard, msp_rom,
+ client->adapter->name,
+ (state->has_nicam) ? "nicam" : "",
+ (state->has_nicam && state->has_radio) ? " and " : "",
+ (state->has_radio) ? "radio" : "",
+ opmode_str[state->opmode]);
+
+ /* version-specific initialization */
+ switch (state->opmode) {
+ case OPMODE_MANUAL:
+ thread_func = msp3400c_thread;
+ break;
+ case OPMODE_AUTODETECT:
+ thread_func = msp3410d_thread;
+ break;
+ case OPMODE_AUTOSELECT:
+ thread_func = msp34xxg_thread;
+ break;
+ }
+
+ /* startup control thread if needed */
+ if (thread_func) {
+ state->kthread = kthread_run(thread_func, client, "msp34xx");
+
+ if (IS_ERR(state->kthread))
+ dev_warn(&client->dev, "kernel_thread() failed\n");
+ msp_wake_thread(client);
+ }
+ return 0;
+}
+
+static void 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);
+}
+
+/* ----------------------------------------------------------------------- */
+
+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 = {
+ .name = "msp3400",
+ .pm = &msp3400_pm_ops,
+ },
+ .probe = msp_probe,
+ .remove = msp_remove,
+ .id_table = msp_id,
+};
+
+module_i2c_driver(msp_driver);