patch-2.4.0-test7 linux/drivers/media/video/msp3400.c
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- Lines: 1455
- Date:
Sun Aug 6 12:45:28 2000
- Orig file:
v2.4.0-test6/linux/drivers/media/video/msp3400.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.4.0-test6/linux/drivers/media/video/msp3400.c linux/drivers/media/video/msp3400.c
@@ -0,0 +1,1454 @@
+/*
+ * programming the msp34* sound processor family
+ *
+ * (c) 1997-2000 Gerd Knorr <kraxel@goldbach.in-berlin.de>
+ *
+ * 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
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/malloc.h>
+#include <linux/i2c.h>
+#include <linux/videodev.h>
+#include <asm/semaphore.h>
+#include <linux/init.h>
+
+#ifdef CONFIG_SMP
+#include <asm/pgtable.h>
+#include <linux/smp_lock.h>
+#endif
+/* kernel_thread */
+#define __KERNEL_SYSCALLS__
+#include <linux/unistd.h>
+
+#include "audiochip.h"
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = {I2C_CLIENT_END};
+static unsigned short normal_i2c_range[] = {0x40,0x40,I2C_CLIENT_END};
+static unsigned short probe[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
+static unsigned short probe_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
+static unsigned short ignore[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
+static unsigned short ignore_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
+static unsigned short force[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
+static struct i2c_client_address_data addr_data = {
+ normal_i2c, normal_i2c_range,
+ probe, probe_range,
+ ignore, ignore_range,
+ force
+};
+
+/* insmod parameters */
+static int debug = 0; /* debug output */
+static int once = 0; /* no continous stereo monitoring */
+static int amsound = 0; /* hard-wire AM sound at 6.5 Hz (france),
+ the autoscan seems work well only with FM... */
+static int simple = -1; /* use short programming (>= msp3410 only) */
+static int dolby = 0;
+
+struct msp3400c {
+ int simple;
+ int nicam;
+ int mode;
+ int norm;
+ int stereo;
+ int nicam_on;
+ int main, second; /* sound carrier */
+
+ int left, right; /* volume */
+ int bass, treble;
+
+ /* thread */
+ struct task_struct *thread;
+ wait_queue_head_t wq;
+
+ struct semaphore *notify;
+ int active,restart,rmmod;
+
+ int watch_stereo;
+ struct timer_list wake_stereo;
+};
+
+#define MSP3400_MAX 4
+static struct i2c_client *msps[MSP3400_MAX];
+
+#define VIDEO_MODE_RADIO 16 /* norm magic for radio mode */
+
+/* ---------------------------------------------------------------------- */
+
+#define dprintk if (debug) printk
+
+MODULE_PARM(once,"i");
+MODULE_PARM(debug,"i");
+MODULE_PARM(simple,"i");
+MODULE_PARM(amsound,"i");
+MODULE_PARM(dolby,"i");
+
+/* ---------------------------------------------------------------------- */
+
+#define I2C_MSP3400C 0x80
+#define I2C_MSP3400C_DEM 0x10
+#define I2C_MSP3400C_DFP 0x12
+
+/* ----------------------------------------------------------------------- */
+/* functions for talking to the MSP3400C Sound processor */
+
+static int msp3400c_reset(struct i2c_client *client)
+{
+ static char reset_off[3] = { 0x00, 0x80, 0x00 };
+ static char reset_on[3] = { 0x00, 0x00, 0x00 };
+
+ i2c_master_send(client,reset_off,3); /* XXX ignore errors here */
+ if (3 != i2c_master_send(client,reset_on, 3)) {
+ printk(KERN_ERR "msp3400: chip reset failed, penguin on i2c bus?\n");
+ return -1;
+ }
+ return 0;
+}
+
+static int
+msp3400c_read(struct i2c_client *client, int dev, int addr)
+{
+ int err;
+
+ unsigned char write[3];
+ unsigned char 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;) {
+ if (2 == i2c_transfer(client->adapter,msgs,2))
+ break;
+ err++;
+ printk(KERN_WARNING "msp34xx: I/O error #%d (read 0x%02x/0x%02x)\n",
+ err, dev, addr);
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout(HZ/10);
+ }
+ if (3 == err) {
+ printk(KERN_WARNING "msp34xx: giving up, reseting chip. Sound will go off, sorry folks :-|\n");
+ msp3400c_reset(client);
+ return -1;
+ }
+ return read[0] << 8 | read[1];
+}
+
+static int
+msp3400c_write(struct i2c_client *client, int dev, int addr, int val)
+{
+ int err;
+ unsigned char buffer[5];
+
+ buffer[0] = dev;
+ buffer[1] = addr >> 8;
+ buffer[2] = addr & 0xff;
+ buffer[3] = val >> 8;
+ buffer[4] = val & 0xff;
+
+ for (err = 0; err < 3;) {
+ if (5 == i2c_master_send(client, buffer, 5))
+ break;
+ err++;
+ printk(KERN_WARNING "msp34xx: I/O error #%d (write 0x%02x/0x%02x)\n",
+ err, dev, addr);
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout(HZ/10);
+ }
+ if (3 == err) {
+ printk(KERN_WARNING "msp34xx: giving up, reseting chip. Sound will go off, sorry folks :-|\n");
+ msp3400c_reset(client);
+ return -1;
+ }
+ return 0;
+}
+
+/* ------------------------------------------------------------------------ */
+
+/* This macro is allowed for *constants* only, gcc must calculate it
+ at compile time. Remember -- no floats in kernel mode */
+#define MSP_CARRIER(freq) ((int)((float)(freq/18.432)*(1<<24)))
+
+#define MSP_MODE_AM_DETECT 0
+#define MSP_MODE_FM_RADIO 2
+#define MSP_MODE_FM_TERRA 3
+#define MSP_MODE_FM_SAT 4
+#define MSP_MODE_FM_NICAM1 5
+#define MSP_MODE_FM_NICAM2 6
+#define MSP_MODE_AM_NICAM 7
+#define MSP_MODE_BTSC 8
+
+static struct MSP_INIT_DATA_DEM {
+ int fir1[6];
+ int fir2[6];
+ int cdo1;
+ int cdo2;
+ int ad_cv;
+ int mode_reg;
+ int dfp_src;
+ int dfp_matrix;
+} msp_init_data[] = {
+ /* AM (for carrier detect / msp3400) */
+ { { 75, 19, 36, 35, 39, 40 }, { 75, 19, 36, 35, 39, 40 },
+ MSP_CARRIER(5.5), MSP_CARRIER(5.5),
+ 0x00d0, 0x0500, 0x0020, 0x3000},
+
+ /* AM (for carrier detect / msp3410) */
+ { { -1, -1, -8, 2, 59, 126 }, { -1, -1, -8, 2, 59, 126 },
+ MSP_CARRIER(5.5), MSP_CARRIER(5.5),
+ 0x00d0, 0x0100, 0x0020, 0x3000},
+
+ /* FM Radio */
+ { { -8, -8, 4, 6, 78, 107 }, { -8, -8, 4, 6, 78, 107 },
+ MSP_CARRIER(10.7), MSP_CARRIER(10.7),
+ 0x00d0, 0x0480, 0x0020, 0x3000 },
+
+ /* Terrestial FM-mono + FM-stereo */
+ { { 3, 18, 27, 48, 66, 72 }, { 3, 18, 27, 48, 66, 72 },
+ MSP_CARRIER(5.5), MSP_CARRIER(5.5),
+ 0x00d0, 0x0480, 0x0030, 0x3000},
+
+ /* Sat FM-mono */
+ { { 1, 9, 14, 24, 33, 37 }, { 3, 18, 27, 48, 66, 72 },
+ MSP_CARRIER(6.5), MSP_CARRIER(6.5),
+ 0x00c6, 0x0480, 0x0000, 0x3000},
+
+ /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */
+ { { -2, -8, -10, 10, 50, 86 }, { 3, 18, 27, 48, 66, 72 },
+ MSP_CARRIER(5.5), MSP_CARRIER(5.5),
+ 0x00d0, 0x0040, 0x0120, 0x3000},
+
+ /* NICAM/FM -- I (6.0/6.552) */
+ { { 2, 4, -6, -4, 40, 94 }, { 3, 18, 27, 48, 66, 72 },
+ MSP_CARRIER(6.0), MSP_CARRIER(6.0),
+ 0x00d0, 0x0040, 0x0120, 0x3000},
+
+ /* NICAM/AM -- L (6.5/5.85) */
+ { { -2, -8, -10, 10, 50, 86 }, { -4, -12, -9, 23, 79, 126 },
+ MSP_CARRIER(6.5), MSP_CARRIER(6.5),
+ 0x00c6, 0x0140, 0x0120, 0x7c03},
+};
+
+struct CARRIER_DETECT {
+ int cdo;
+ char *name;
+};
+
+static struct CARRIER_DETECT carrier_detect_main[] = {
+ /* main carrier */
+ { MSP_CARRIER(4.5), "4.5 NTSC" },
+ { MSP_CARRIER(5.5), "5.5 PAL B/G" },
+ { MSP_CARRIER(6.0), "6.0 PAL I" },
+ { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" }
+};
+
+static struct CARRIER_DETECT carrier_detect_55[] = {
+ /* PAL B/G */
+ { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" },
+ { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" }
+};
+
+static struct CARRIER_DETECT carrier_detect_65[] = {
+ /* PAL SAT / SECAM */
+ { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" },
+ { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" },
+ { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" },
+ { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" },
+ { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" },
+ { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" },
+};
+
+#define CARRIER_COUNT(x) (sizeof(x)/sizeof(struct CARRIER_DETECT))
+
+/* ------------------------------------------------------------------------ */
+
+static void msp3400c_setcarrier(struct i2c_client *client, int cdo1, int cdo2)
+{
+ msp3400c_write(client,I2C_MSP3400C_DEM, 0x0093, cdo1 & 0xfff);
+ msp3400c_write(client,I2C_MSP3400C_DEM, 0x009b, cdo1 >> 12);
+ msp3400c_write(client,I2C_MSP3400C_DEM, 0x00a3, cdo2 & 0xfff);
+ msp3400c_write(client,I2C_MSP3400C_DEM, 0x00ab, cdo2 >> 12);
+ msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/
+}
+
+static void msp3400c_setvolume(struct i2c_client *client, int left, int right)
+{
+ int vol,val,balance;
+
+ vol = (left > right) ? left : right;
+ val = (vol * 0x73 / 65535) << 8;
+ balance = 0;
+ if (vol > 0)
+ balance = ((right-left) * 127) / vol;
+
+ dprintk("msp34xx: setvolume: %d:%d 0x%02x 0x%02x\n",
+ left,right,val>>8,balance);
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0000, val); /* loudspeaker */
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0006, val); /* headphones */
+ /* scart - on/off only */
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0007, val ? 0x4000 : 0);
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0001, balance << 8);
+}
+
+static void msp3400c_setbass(struct i2c_client *client, int bass)
+{
+ int val = ((bass-32768) * 0x60 / 65535) << 8;
+
+ dprintk("msp34xx: setbass: %d 0x%02x\n",bass, val>>8);
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0002, val); /* loudspeaker */
+}
+
+static void msp3400c_settreble(struct i2c_client *client, int treble)
+{
+ int val = ((treble-32768) * 0x60 / 65535) << 8;
+
+ dprintk("msp34xx: settreble: %d 0x%02x\n",treble, val>>8);
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0003, val); /* loudspeaker */
+}
+
+static void msp3400c_setmode(struct i2c_client *client, int type)
+{
+ struct msp3400c *msp = client->data;
+ int i;
+
+ dprintk("msp3400: setmode: %d\n",type);
+ msp->mode = type;
+ msp->stereo = VIDEO_SOUND_MONO;
+
+ msp3400c_write(client,I2C_MSP3400C_DEM, 0x00bb, /* ad_cv */
+ msp_init_data[type].ad_cv);
+
+ for (i = 5; i >= 0; i--) /* fir 1 */
+ msp3400c_write(client,I2C_MSP3400C_DEM, 0x0001,
+ msp_init_data[type].fir1[i]);
+
+ msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0004); /* fir 2 */
+ msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0040);
+ msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0000);
+ for (i = 5; i >= 0; i--)
+ msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005,
+ msp_init_data[type].fir2[i]);
+
+ msp3400c_write(client,I2C_MSP3400C_DEM, 0x0083, /* MODE_REG */
+ msp_init_data[type].mode_reg);
+
+ msp3400c_setcarrier(client, msp_init_data[type].cdo1,
+ msp_init_data[type].cdo2);
+
+ msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/
+
+ if (dolby) {
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
+ 0x0520); /* I2S1 */
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
+ 0x0620); /* I2S2 */
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
+ msp_init_data[type].dfp_src);
+ } else {
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
+ msp_init_data[type].dfp_src);
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
+ msp_init_data[type].dfp_src);
+ }
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,
+ msp_init_data[type].dfp_src);
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e,
+ msp_init_data[type].dfp_matrix);
+
+ if (msp->nicam) {
+ /* nicam prescale */
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0010, 0x5a00); /* was: 0x3000 */
+ }
+}
+
+/* turn on/off nicam + stereo */
+static void msp3400c_setstereo(struct i2c_client *client, int mode)
+{
+ struct msp3400c *msp = client->data;
+ int nicam=0; /* channel source: FM/AM or nicam */
+ int src=0;
+
+ /* switch demodulator */
+ switch (msp->mode) {
+ case MSP_MODE_FM_TERRA:
+ dprintk("msp3400: FM setstereo: %d\n",mode);
+ msp3400c_setcarrier(client,msp->second,msp->main);
+ switch (mode) {
+ case VIDEO_SOUND_STEREO:
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3001);
+ break;
+ case VIDEO_SOUND_MONO:
+ case VIDEO_SOUND_LANG1:
+ case VIDEO_SOUND_LANG2:
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3000);
+ break;
+ }
+ break;
+ case MSP_MODE_FM_SAT:
+ dprintk("msp3400: SAT setstereo: %d\n",mode);
+ switch (mode) {
+ case VIDEO_SOUND_MONO:
+ msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
+ break;
+ case VIDEO_SOUND_STEREO:
+ msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
+ break;
+ case VIDEO_SOUND_LANG1:
+ msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
+ break;
+ case VIDEO_SOUND_LANG2:
+ msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
+ break;
+ }
+ break;
+ case MSP_MODE_FM_NICAM1:
+ case MSP_MODE_FM_NICAM2:
+ case MSP_MODE_AM_NICAM:
+ dprintk("msp3400: NICAM setstereo: %d\n",mode);
+ msp3400c_setcarrier(client,msp->second,msp->main);
+ if (msp->nicam_on)
+ nicam=0x0100;
+ break;
+ case MSP_MODE_BTSC:
+ dprintk("msp3400: BTSC setstereo: %d\n",mode);
+ nicam=0x0300;
+ break;
+ default:
+ dprintk("msp3400: mono setstereo\n");
+ return;
+ }
+
+ /* switch audio */
+ switch (mode) {
+ case VIDEO_SOUND_STEREO:
+ src = 0x0020 | nicam;
+#if 0
+ /* spatial effect */
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0005,0x4000);
+#endif
+ break;
+ case VIDEO_SOUND_MONO:
+ if (msp->mode == MSP_MODE_AM_NICAM) {
+ dprintk("msp3400: switching to AM mono\n");
+ /* AM mono decoding is handled by tuner, not MSP chip */
+ /* so let's redirect sound from tuner via SCART */
+ /* volume prescale for SCART */
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x000d, 0x1900);
+ /* SCART switching control register*/
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0013, 0xe900);
+ src = 0x0200;
+ break;
+ }
+ case VIDEO_SOUND_LANG1:
+ src = 0x0000 | nicam;
+ break;
+ case VIDEO_SOUND_LANG2:
+ src = 0x0010 | nicam;
+ break;
+ }
+ if (dolby) {
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,0x0520);
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,0x0620);
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
+ } else {
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,src);
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,src);
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
+ }
+}
+
+static void
+msp3400c_print_mode(struct msp3400c *msp)
+{
+ if (msp->main == msp->second) {
+ printk("msp3400: mono sound carrier: %d.%03d MHz\n",
+ msp->main/910000,(msp->main/910)%1000);
+ } else {
+ printk("msp3400: main sound carrier: %d.%03d MHz\n",
+ msp->main/910000,(msp->main/910)%1000);
+ }
+ if (msp->mode == MSP_MODE_FM_NICAM1 ||
+ msp->mode == MSP_MODE_FM_NICAM2)
+ printk("msp3400: NICAM/FM carrier : %d.%03d MHz\n",
+ msp->second/910000,(msp->second/910)%1000);
+ if (msp->mode == MSP_MODE_AM_NICAM)
+ printk("msp3400: NICAM/AM carrier : %d.%03d MHz\n",
+ msp->second/910000,(msp->second/910)%1000);
+ if (msp->mode == MSP_MODE_FM_TERRA &&
+ msp->main != msp->second) {
+ printk("msp3400: FM-stereo carrier : %d.%03d MHz\n",
+ msp->second/910000,(msp->second/910)%1000);
+ }
+}
+
+/* ----------------------------------------------------------------------- */
+
+struct REGISTER_DUMP {
+ int addr;
+ char *name;
+};
+
+struct REGISTER_DUMP d1[] = {
+ { 0x007e, "autodetect" },
+ { 0x0023, "C_AD_BITS " },
+ { 0x0038, "ADD_BITS " },
+ { 0x003e, "CIB_BITS " },
+ { 0x0057, "ERROR_RATE" },
+};
+
+static int
+autodetect_stereo(struct i2c_client *client)
+{
+ struct msp3400c *msp = client->data;
+ int val;
+ int newstereo = msp->stereo;
+ int newnicam = msp->nicam_on;
+ int update = 0;
+
+ switch (msp->mode) {
+ case MSP_MODE_FM_TERRA:
+ val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x18);
+ if (val > 32768)
+ val -= 65536;
+ dprintk("msp34xx: stereo detect register: %d\n",val);
+
+ if (val > 4096) {
+ newstereo = VIDEO_SOUND_STEREO | VIDEO_SOUND_MONO;
+ } else if (val < -4096) {
+ newstereo = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
+ } else {
+ newstereo = VIDEO_SOUND_MONO;
+ }
+ newnicam = 0;
+ break;
+ case MSP_MODE_FM_NICAM1:
+ case MSP_MODE_FM_NICAM2:
+ case MSP_MODE_AM_NICAM:
+ val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x23);
+ dprintk("msp34xx: nicam sync=%d, mode=%d\n",val & 1, (val & 0x1e) >> 1);
+
+ if (val & 1) {
+ /* nicam synced */
+ switch ((val & 0x1e) >> 1) {
+ case 0:
+ case 8:
+ newstereo = VIDEO_SOUND_STEREO;
+ break;
+ case 1:
+ case 9:
+ newstereo = VIDEO_SOUND_MONO
+ | VIDEO_SOUND_LANG1;
+ break;
+ case 2:
+ case 10:
+ newstereo = VIDEO_SOUND_MONO
+ | VIDEO_SOUND_LANG1
+ | VIDEO_SOUND_LANG2;
+ break;
+ default:
+ newstereo = VIDEO_SOUND_MONO;
+ break;
+ }
+ newnicam=1;
+ } else {
+ newnicam = 0;
+ newstereo = VIDEO_SOUND_MONO;
+ }
+ break;
+ case MSP_MODE_BTSC:
+ val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x200);
+ dprintk("msp3410: status=0x%x (pri=%s, sec=%s, %s%s%s)\n",
+ val,
+ (val & 0x0002) ? "no" : "yes",
+ (val & 0x0004) ? "no" : "yes",
+ (val & 0x0040) ? "stereo" : "mono",
+ (val & 0x0080) ? ", nicam 2nd mono" : "",
+ (val & 0x0100) ? ", bilingual/SAP" : "");
+ newstereo = VIDEO_SOUND_MONO;
+ if (val & 0x0040) newstereo |= VIDEO_SOUND_STEREO;
+ if (val & 0x0100) newstereo |= VIDEO_SOUND_LANG1;
+ break;
+ }
+ if (newstereo != msp->stereo) {
+ update = 1;
+ dprintk("msp34xx: watch: stereo %d => %d\n",
+ msp->stereo,newstereo);
+ msp->stereo = newstereo;
+ }
+ if (newnicam != msp->nicam_on) {
+ update = 1;
+ dprintk("msp34xx: watch: nicam %d => %d\n",
+ msp->nicam_on,newnicam);
+ msp->nicam_on = newnicam;
+ }
+ return update;
+}
+
+/*
+ * A kernel thread for msp3400 control -- we don't want to block the
+ * in the ioctl while doing the sound carrier & stereo detect
+ */
+
+static void msp3400c_stereo_wake(unsigned long data)
+{
+ struct msp3400c *msp = (struct msp3400c*)data; /* XXX alpha ??? */
+
+ wake_up_interruptible(&msp->wq);
+}
+
+/* stereo/multilang monitoring */
+static void watch_stereo(struct i2c_client *client)
+{
+ struct msp3400c *msp = client->data;
+
+ if (autodetect_stereo(client)) {
+ if (msp->stereo & VIDEO_SOUND_STEREO)
+ msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
+ else if (msp->stereo & VIDEO_SOUND_LANG1)
+ msp3400c_setstereo(client,VIDEO_SOUND_LANG1);
+ else
+ msp3400c_setstereo(client,VIDEO_SOUND_MONO);
+ }
+ if (once)
+ msp->watch_stereo = 0;
+ if (msp->watch_stereo)
+ mod_timer(&msp->wake_stereo, jiffies+5*HZ);
+}
+
+static int msp3400c_thread(void *data)
+{
+ struct i2c_client *client = data;
+ struct msp3400c *msp = client->data;
+
+ struct CARRIER_DETECT *cd;
+ int count, max1,max2,val1,val2, val,this;
+
+#ifdef CONFIG_SMP
+ lock_kernel();
+#endif
+
+ daemonize();
+ sigfillset(¤t->blocked);
+ strcpy(current->comm,"msp3400");
+
+ msp->thread = current;
+
+#ifdef CONFIG_SMP
+ unlock_kernel();
+#endif
+
+ printk("msp3400: daemon started\n");
+ if(msp->notify != NULL)
+ up(msp->notify);
+
+ for (;;) {
+ if (msp->rmmod)
+ goto done;
+ if (debug > 1)
+ printk("msp3400: thread: sleep\n");
+ interruptible_sleep_on(&msp->wq);
+ if (debug > 1)
+ printk("msp3400: thread: wakeup\n");
+ if (msp->rmmod || signal_pending(current))
+ goto done;
+
+ if (VIDEO_MODE_RADIO == msp->norm)
+ continue; /* nothing to do */
+
+ msp->active = 1;
+
+ if (msp->watch_stereo) {
+ watch_stereo(client);
+ msp->active = 0;
+ continue;
+ }
+
+ /* some time for the tuner to sync */
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout(HZ/5);
+ if (signal_pending(current))
+ goto done;
+
+ restart:
+ msp->restart = 0;
+ msp3400c_setvolume(client, 0, 0);
+ msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ );
+ val1 = val2 = 0;
+ max1 = max2 = -1;
+ del_timer(&msp->wake_stereo);
+ msp->watch_stereo = 0;
+
+ /* carrier detect pass #1 -- main carrier */
+ cd = carrier_detect_main; count = CARRIER_COUNT(carrier_detect_main);
+
+ if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {
+ /* autodetect doesn't work well with AM ... */
+ max1 = 3;
+ count = 0;
+ dprintk("msp3400: AM sound override\n");
+ }
+
+ for (this = 0; this < count; this++) {
+ msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
+
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout(HZ/10);
+ if (signal_pending(current))
+ goto done;
+ if (msp->restart)
+ msp->restart = 0;
+
+ val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
+ if (val > 32768)
+ val -= 65536;
+ if (val1 < val)
+ val1 = val, max1 = this;
+ dprintk("msp3400: carrier1 val: %5d / %s\n", val,cd[this].name);
+ }
+
+ /* carrier detect pass #2 -- second (stereo) carrier */
+ switch (max1) {
+ case 1: /* 5.5 */
+ cd = carrier_detect_55; count = CARRIER_COUNT(carrier_detect_55);
+ break;
+ case 3: /* 6.5 */
+ cd = carrier_detect_65; count = CARRIER_COUNT(carrier_detect_65);
+ break;
+ case 0: /* 4.5 */
+ case 2: /* 6.0 */
+ default:
+ cd = NULL; count = 0;
+ break;
+ }
+
+ if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {
+ /* autodetect doesn't work well with AM ... */
+ cd = NULL; count = 0; max2 = 0;
+ }
+ for (this = 0; this < count; this++) {
+ msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
+
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout(HZ/10);
+ if (signal_pending(current))
+ goto done;
+ if (msp->restart)
+ goto restart;
+
+ val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
+ if (val > 32768)
+ val -= 65536;
+ if (val2 < val)
+ val2 = val, max2 = this;
+ dprintk("msp3400: carrier2 val: %5d / %s\n", val,cd[this].name);
+ }
+
+ /* programm the msp3400 according to the results */
+ msp->main = carrier_detect_main[max1].cdo;
+ switch (max1) {
+ case 1: /* 5.5 */
+ if (max2 == 0) {
+ /* B/G FM-stereo */
+ msp->second = carrier_detect_55[max2].cdo;
+ msp3400c_setmode(client, MSP_MODE_FM_TERRA);
+ msp->nicam_on = 0;
+ msp3400c_setstereo(client, VIDEO_SOUND_MONO);
+ msp->watch_stereo = 1;
+ } else if (max2 == 1 && msp->nicam) {
+ /* B/G NICAM */
+ msp->second = carrier_detect_55[max2].cdo;
+ msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
+ msp->nicam_on = 1;
+ msp3400c_setcarrier(client, msp->second, msp->main);
+ msp->watch_stereo = 1;
+ } else {
+ goto no_second;
+ }
+ break;
+ case 2: /* 6.0 */
+ /* PAL I NICAM */
+ msp->second = MSP_CARRIER(6.552);
+ msp3400c_setmode(client, MSP_MODE_FM_NICAM2);
+ msp->nicam_on = 1;
+ msp3400c_setcarrier(client, msp->second, msp->main);
+ msp->watch_stereo = 1;
+ break;
+ case 3: /* 6.5 */
+ if (max2 == 1 || max2 == 2) {
+ /* D/K FM-stereo */
+ msp->second = carrier_detect_65[max2].cdo;
+ msp3400c_setmode(client, MSP_MODE_FM_TERRA);
+ msp->nicam_on = 0;
+ msp3400c_setstereo(client, VIDEO_SOUND_MONO);
+ msp->watch_stereo = 1;
+ } else if (max2 == 0 &&
+ msp->norm == VIDEO_MODE_SECAM) {
+ /* L NICAM or AM-mono */
+ msp->second = carrier_detect_65[max2].cdo;
+ msp3400c_setmode(client, MSP_MODE_AM_NICAM);
+ msp->nicam_on = 0;
+ msp3400c_setstereo(client, VIDEO_SOUND_MONO);
+ msp3400c_setcarrier(client, msp->second, msp->main);
+ msp->watch_stereo = 1;
+ } else if (max2 == 0 && msp->nicam) {
+ /* D/K NICAM */
+ msp->second = carrier_detect_65[max2].cdo;
+ msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
+ msp->nicam_on = 1;
+ msp3400c_setcarrier(client, msp->second, msp->main);
+ msp->watch_stereo = 1;
+ } else {
+ goto no_second;
+ }
+ break;
+ case 0: /* 4.5 */
+ default:
+ no_second:
+ msp->second = carrier_detect_main[max1].cdo;
+ msp3400c_setmode(client, MSP_MODE_FM_TERRA);
+ msp->nicam_on = 0;
+ msp3400c_setcarrier(client, msp->second, msp->main);
+ msp->stereo = VIDEO_SOUND_MONO;
+ msp3400c_setstereo(client, VIDEO_SOUND_MONO);
+ break;
+ }
+
+ /* unmute */
+ msp3400c_setvolume(client, msp->left, msp->right);
+
+ if (msp->watch_stereo)
+ mod_timer(&msp->wake_stereo, jiffies+5*HZ);
+
+ if (debug)
+ msp3400c_print_mode(msp);
+
+ msp->active = 0;
+ }
+
+done:
+ dprintk("msp3400: thread: exit\n");
+ msp->active = 0;
+ msp->thread = NULL;
+
+ if(msp->notify != NULL)
+ up(msp->notify);
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+/* this one uses the automatic sound standard detection of newer */
+/* msp34xx chip versions */
+
+static struct MODES {
+ int retval;
+ int main, second;
+ char *name;
+} modelist[] = {
+ { 0x0000, 0, 0, "ERROR" },
+ { 0x0001, 0, 0, "autodetect start" },
+ { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72 M Dual FM-Stereo" },
+ { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74 B/G Dual FM-Stereo" },
+ { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25 D/K1 Dual FM-Stereo" },
+ { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74 D/K2 Dual FM-Stereo" },
+ { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 D/K FM-Mono (HDEV3)" },
+ { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85 B/G NICAM FM" },
+ { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 L NICAM AM" },
+ { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55 I NICAM FM" },
+ { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM" },
+ { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV2)" },
+ { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Stereo" },
+ { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Mono + SAP" },
+ { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M EIA-J Japan Stereo" },
+ { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7 FM-Stereo Radio" },
+ { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 SAT-Mono" },
+ { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20 SAT-Stereo" },
+ { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2 SAT ADR" },
+ { -1, 0, 0, NULL }, /* EOF */
+};
+
+static int msp3410d_thread(void *data)
+{
+ struct i2c_client *client = data;
+ struct msp3400c *msp = client->data;
+ int mode,val,i,std;
+
+#ifdef CONFIG_SMP
+ lock_kernel();
+#endif
+
+ daemonize();
+ sigfillset(¤t->blocked);
+ strcpy(current->comm,"msp3410 [auto]");
+
+ msp->thread = current;
+
+#ifdef CONFIG_SMP
+ unlock_kernel();
+#endif
+
+ printk("msp3410: daemon started\n");
+ if(msp->notify != NULL)
+ up(msp->notify);
+
+ for (;;) {
+ if (msp->rmmod)
+ goto done;
+ if (debug > 1)
+ printk("msp3410: thread: sleep\n");
+ interruptible_sleep_on(&msp->wq);
+ if (debug > 1)
+ printk("msp3410: thread: wakeup\n");
+ if (msp->rmmod || signal_pending(current))
+ goto done;
+
+ if (VIDEO_MODE_RADIO == msp->norm)
+ continue; /* nothing to do */
+
+ msp->active = 1;
+
+ if (msp->watch_stereo) {
+ watch_stereo(client);
+ msp->active = 0;
+ continue;
+ }
+
+ /* some time for the tuner to sync */
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout(HZ/5);
+ if (signal_pending(current))
+ goto done;
+
+ restart:
+ msp->restart = 0;
+ del_timer(&msp->wake_stereo);
+ msp->watch_stereo = 0;
+
+ /* put into sane state (and mute) */
+ msp3400c_reset(client);
+
+ /* start autodetect */
+ switch (msp->norm) {
+ case VIDEO_MODE_PAL:
+ mode = 0x1003;
+ std = 1;
+ break;
+ case VIDEO_MODE_NTSC: /* BTSC */
+ mode = 0x2003;
+ std = 0x0020;
+ break;
+ case VIDEO_MODE_SECAM:
+ mode = 0x0003;
+ std = 1;
+ break;
+ default:
+ mode = 0x0003;
+ std = 1;
+ break;
+ }
+ msp3400c_write(client, I2C_MSP3400C_DEM, 0x30, mode);
+ msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, std);
+ msp3400c_write(client, I2C_MSP3400C_DFP, 0x0e, 0x2403);
+ msp3400c_write(client, I2C_MSP3400C_DFP, 0x10, 0x5a00);
+ if (debug) {
+ int i;
+ for (i = 0; modelist[i].name != NULL; i++)
+ if (modelist[i].retval == std)
+ break;
+ printk("msp3410: setting mode: %s (0x%04x)\n",
+ modelist[i].name ? modelist[i].name : "unknown",std);
+ }
+
+ if (std != 1) {
+ /* programmed some specific mode */
+ val = std;
+ } else {
+ /* triggered autodetect */
+ for (;;) {
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout(HZ/10);
+ if (signal_pending(current))
+ goto done;
+ if (msp->restart)
+ goto restart;
+
+ /* check results */
+ val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x7e);
+ if (val < 0x07ff)
+ break;
+ dprintk("msp3410: detection still in progress\n");
+ }
+ }
+ for (i = 0; modelist[i].name != NULL; i++)
+ if (modelist[i].retval == val)
+ break;
+ dprintk("msp3410: current mode: %s (0x%04x)\n",
+ modelist[i].name ? modelist[i].name : "unknown",
+ val);
+ msp->main = modelist[i].main;
+ msp->second = modelist[i].second;
+
+ if (amsound && (msp->norm == VIDEO_MODE_SECAM) && (val != 0x0009)) {
+ /* autodetection has failed, let backup */
+ dprintk("msp3410: autodetection failed, switching to backup mode: %s (0x%04x)\n",
+ modelist[8].name ? modelist[8].name : "unknown",val);
+ val = 0x0009;
+ msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, val);
+ }
+
+ /* set prescale / stereo */
+ switch (val) {
+ case 0x0009:
+ msp->mode = MSP_MODE_AM_NICAM;
+ msp->stereo = VIDEO_SOUND_MONO;
+ msp3400c_setstereo(client,VIDEO_SOUND_MONO);
+ msp->watch_stereo = 1;
+ break;
+ case 0x0020: /* BTSC */
+ /* just turn on stereo */
+ msp->mode = MSP_MODE_BTSC;
+ msp->stereo = VIDEO_SOUND_STEREO;
+ msp->watch_stereo = 1;
+ msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
+ /* set prescale */
+ msp3400c_write(client, I2C_MSP3400C_DFP, 0x0e, 0x2403); /* FM */
+ break;
+ case 0x0003:
+ msp->mode = MSP_MODE_FM_TERRA;
+ msp->stereo = VIDEO_SOUND_MONO;
+ msp->watch_stereo = 1;
+ /* fall */
+ default:
+ msp3400c_write(client, I2C_MSP3400C_DFP, 0x0e, 0x2403); /* FM */
+ msp3400c_write(client, I2C_MSP3400C_DFP, 0x10, 0x5a00); /* NICAM */
+ break;
+ }
+
+ /* unmute */
+ msp3400c_setbass(client, msp->bass);
+ msp3400c_settreble(client, msp->treble);
+ msp3400c_setvolume(client, msp->left, msp->right);
+
+ if (msp->watch_stereo)
+ mod_timer(&msp->wake_stereo, jiffies+HZ);
+
+ msp->active = 0;
+ }
+
+done:
+ dprintk("msp3410: thread: exit\n");
+ msp->active = 0;
+ msp->thread = NULL;
+
+ if(msp->notify != NULL)
+ up(msp->notify);
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int msp_attach(struct i2c_adapter *adap, int addr,
+ unsigned short flags, int kind);
+static int msp_detach(struct i2c_client *client);
+static int msp_probe(struct i2c_adapter *adap);
+static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg);
+
+static struct i2c_driver driver = {
+ "i2c msp3400 driver",
+ I2C_DRIVERID_MSP3400,
+ I2C_DF_NOTIFY,
+ msp_probe,
+ msp_detach,
+ msp_command,
+};
+
+static struct i2c_client client_template =
+{
+ "unset",
+ -1,
+ 0,
+ 0,
+ NULL,
+ &driver
+};
+
+static int msp_attach(struct i2c_adapter *adap, int addr,
+ unsigned short flags, int kind)
+{
+ DECLARE_MUTEX_LOCKED(sem);
+ struct msp3400c *msp;
+ struct i2c_client *c;
+ int rev1,rev2,i;
+
+ client_template.adapter = adap;
+ client_template.addr = addr;
+
+ if (-1 == msp3400c_reset(&client_template)) {
+ dprintk("msp3400: no chip found\n");
+ return -1;
+ }
+
+ if (NULL == (c = kmalloc(sizeof(struct i2c_client),GFP_KERNEL)))
+ return -ENOMEM;
+ memcpy(c,&client_template,sizeof(struct i2c_client));
+ if (NULL == (msp = kmalloc(sizeof(struct msp3400c),GFP_KERNEL))) {
+ kfree(c);
+ return -ENOMEM;
+ }
+
+ memset(msp,0,sizeof(struct msp3400c));
+ msp->left = 65535;
+ msp->right = 65535;
+ msp->bass = 32768;
+ msp->treble = 32768;
+ c->data = msp;
+ init_waitqueue_head(&msp->wq);
+
+ if (-1 == msp3400c_reset(c)) {
+ kfree(msp);
+ dprintk("msp3400: no chip found\n");
+ return -1;
+ }
+
+ rev1 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1e);
+ rev2 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1f);
+ if (0 == rev1 && 0 == rev2) {
+ kfree(msp);
+ printk("msp3400: error while reading chip version\n");
+ return -1;
+ }
+
+#if 0
+ /* this will turn on a 1kHz beep - might be useful for debugging... */
+ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0014, 0x1040);
+#endif
+
+ sprintf(c->name,"MSP34%02d%c-%c%d",
+ (rev2>>8)&0xff, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@', rev2&0x1f);
+ msp->nicam = (((rev2>>8)&0xff) != 00) ? 1 : 0;
+
+ if (simple == -1) {
+ /* default mode */
+ /* msp->simple = (((rev2>>8)&0xff) == 0) ? 0 : 1; */
+ msp->simple = ((rev1&0xff)+'@' > 'C');
+ } else {
+ /* use insmod option */
+ msp->simple = simple;
+ }
+
+ /* timer for stereo checking */
+ msp->wake_stereo.function = msp3400c_stereo_wake;
+ msp->wake_stereo.data = (unsigned long)msp;
+
+ /* hello world :-) */
+ printk(KERN_INFO "msp3400: init: chip=%s",c->name);
+ if (msp->nicam)
+ printk(", has NICAM support");
+ printk("\n");
+
+ /* startup control thread */
+ MOD_INC_USE_COUNT;
+ msp->notify = &sem;
+ kernel_thread(msp->simple ? msp3410d_thread : msp3400c_thread,
+ (void *)c, 0);
+ down(&sem);
+ msp->notify = NULL;
+ wake_up_interruptible(&msp->wq);
+
+#ifdef REGISTER_MIXER
+ if ((msp->mixer_num = register_sound_mixer(&msp3400c_mixer_fops,mixer)) < 0)
+ printk(KERN_ERR "msp3400c: cannot allocate mixer device\n");
+#endif
+
+ /* update our own array */
+ for (i = 0; i < MSP3400_MAX; i++) {
+ if (NULL == msps[i]) {
+ msps[i] = c;
+ break;
+ }
+ }
+
+ /* done */
+ i2c_attach_client(c);
+ return 0;
+}
+
+static int msp_detach(struct i2c_client *client)
+{
+ DECLARE_MUTEX_LOCKED(sem);
+ struct msp3400c *msp = (struct msp3400c*)client->data;
+ int i;
+
+#ifdef REGISTER_MIXER
+ if (msp->mixer_num >= 0)
+ unregister_sound_mixer(msp->mixer_num);
+#endif
+
+ /* shutdown control thread */
+ del_timer(&msp->wake_stereo);
+ if (msp->thread)
+ {
+ msp->notify = &sem;
+ msp->rmmod = 1;
+ wake_up_interruptible(&msp->wq);
+ down(&sem);
+ msp->notify = NULL;
+ }
+ msp3400c_reset(client);
+
+ /* update our own array */
+ for (i = 0; i < MSP3400_MAX; i++) {
+ if (client == msps[i]) {
+ msps[i] = NULL;
+ break;
+ }
+ }
+
+ i2c_detach_client(client);
+ kfree(msp);
+ kfree(client);
+ MOD_DEC_USE_COUNT;
+ return 0;
+}
+
+static int msp_probe(struct i2c_adapter *adap)
+{
+ if (adap->id == (I2C_ALGO_BIT | I2C_HW_B_BT848))
+ return i2c_probe(adap, &addr_data, msp_attach);
+ return 0;
+}
+
+static int msp_command(struct i2c_client *client,unsigned int cmd, void *arg)
+{
+ struct msp3400c *msp = (struct msp3400c*)client->data;
+#if 0
+ int *iarg = (int*)arg;
+ __u16 *sarg = arg;
+#endif
+
+ switch (cmd) {
+
+ case AUDC_SET_RADIO:
+ msp->norm = VIDEO_MODE_RADIO;
+ msp->watch_stereo=0;
+ del_timer(&msp->wake_stereo);
+ if (msp->simple) {
+ msp3400c_reset(client);
+ msp3400c_write(client, I2C_MSP3400C_DEM, 0x30, 0x0003); /* automatic */
+ msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, 0x0040); /* FM Radio */
+ msp3400c_write(client, I2C_MSP3400C_DFP, 0x0e, 0x2403); /* FM prescale */
+ msp3400c_setbass(client, msp->bass);
+ msp3400c_settreble(client, msp->treble);
+ msp3400c_setvolume(client, msp->left, msp->right);
+ } else {
+ msp3400c_setmode(client,MSP_MODE_FM_RADIO);
+ msp3400c_setcarrier(client, MSP_CARRIER(10.7),MSP_CARRIER(10.7));
+ msp3400c_setvolume(client,msp->left, msp->right);
+ }
+ 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_BASS |
+ VIDEO_AUDIO_TREBLE;
+ va->volume=MAX(msp->left,msp->right);
+ va->balance=(32768*MIN(msp->left,msp->right))/
+ (va->volume ? va->volume : 1);
+ va->balance=(msp->left<msp->right)?
+ (65535-va->balance) : va->balance;
+ va->bass = msp->bass;
+ va->treble = msp->treble;
+
+ autodetect_stereo(client);
+ va->mode = msp->stereo;
+ break;
+ }
+ case VIDIOCSAUDIO:
+ {
+ struct video_audio *va = arg;
+
+ msp->left = (MIN(65536 - va->balance,32768) *
+ va->volume) / 32768;
+ msp->right = (MIN(va->balance,32768) *
+ va->volume) / 32768;
+ msp->bass = va->bass;
+ msp->treble = va->treble;
+ msp3400c_setvolume(client,msp->left, msp->right);
+ msp3400c_setbass(client,msp->bass);
+ msp3400c_settreble(client,msp->treble);
+
+ if (va->mode != 0) {
+ msp->watch_stereo=0;
+ del_timer(&msp->wake_stereo);
+ msp->stereo = va->mode;
+ msp3400c_setstereo(client,va->mode);
+ }
+ break;
+ }
+ case VIDIOCSCHAN:
+ {
+ struct video_channel *vc = arg;
+
+ msp->norm = vc->norm;
+ break;
+ }
+ case VIDIOCSFREQ:
+ {
+ /* new channel -- kick audio carrier scan */
+ msp3400c_setvolume(client,0,0);
+ msp->watch_stereo=0;
+ del_timer(&msp->wake_stereo);
+ if (msp->active)
+ msp->restart = 1;
+ wake_up_interruptible(&msp->wq);
+ break;
+ }
+
+ /* --- v4l2 ioctls --- */
+ /* NOT YET */
+
+#if 0
+ /* --- old, obsolete interface --- */
+ case AUDC_SET_TVNORM:
+ msp->norm = *iarg;
+ break;
+ case AUDC_SWITCH_MUTE:
+ /* channels switching step one -- mute */
+ msp->watch_stereo=0;
+ del_timer(&msp->wake_stereo);
+ msp3400c_setvolume(client,0,0);
+ break;
+ case AUDC_NEWCHANNEL:
+ /* channels switching step two -- trigger sound carrier scan */
+ msp->watch_stereo=0;
+ del_timer(&msp->wake_stereo);
+ if (msp->active)
+ msp->restart = 1;
+ wake_up_interruptible(&msp->wq);
+ break;
+
+ case AUDC_GET_VOLUME_LEFT:
+ *sarg = msp->left;
+ break;
+ case AUDC_GET_VOLUME_RIGHT:
+ *sarg = msp->right;
+ break;
+ case AUDC_SET_VOLUME_LEFT:
+ msp->left = *sarg;
+ msp3400c_setvolume(client,msp->left, msp->right);
+ break;
+ case AUDC_SET_VOLUME_RIGHT:
+ msp->right = *sarg;
+ msp3400c_setvolume(client,msp->left, msp->right);
+ break;
+
+ case AUDC_GET_BASS:
+ *sarg = msp->bass;
+ break;
+ case AUDC_SET_BASS:
+ msp->bass = *sarg;
+ msp3400c_setbass(client,msp->bass);
+ break;
+
+ case AUDC_GET_TREBLE:
+ *sarg = msp->treble;
+ break;
+ case AUDC_SET_TREBLE:
+ msp->treble = *sarg;
+ msp3400c_settreble(client,msp->treble);
+ break;
+
+ case AUDC_GET_STEREO:
+ autodetect_stereo(client);
+ *sarg = msp->stereo;
+ break;
+ case AUDC_SET_STEREO:
+ if (*sarg) {
+ msp->watch_stereo=0;
+ del_timer(&msp->wake_stereo);
+ msp->stereo = *sarg;
+ msp3400c_setstereo(client,*sarg);
+ }
+ break;
+
+ case AUDC_GET_DC:
+ if (msp->simple)
+ break; /* fixme */
+ *sarg = ((int)msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b) +
+ (int)msp3400c_read(client, I2C_MSP3400C_DFP, 0x1c));
+ break;
+#endif
+ default:
+ /* nothing */
+ }
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+int msp3400_init_module(void)
+{
+ i2c_add_driver(&driver);
+ return 0;
+}
+
+void msp3400_cleanup_module(void)
+{
+ i2c_del_driver(&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:
+ */
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)