forked from Minki/linux
[PATCH] v4l: 759: more improvements at msp3400 c from ivtv code
- More improvements at msp3400.c from ivtv code. Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Mauro Carvalho Chehab
Linus Torvalds
parent
6df840f20d
commit
18f47d10bc
@ -649,6 +649,30 @@ msp3400c_print_mode(struct msp3400c *msp)
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}
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}
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#define MSP3400_MAX 4
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static struct i2c_client *msps[MSP3400_MAX];
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static void msp3400c_restore_dfp(struct i2c_client *client)
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{
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struct msp3400c *msp = i2c_get_clientdata(client);
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int i;
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for (i = 0; i < DFP_COUNT; i++) {
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if (-1 == msp->dfp_regs[i])
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continue;
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msp3400c_write(client, I2C_MSP3400C_DFP, i, msp->dfp_regs[i]);
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}
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}
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/* if the dfp_regs is set, set what's in there. Otherwise, set the default value */
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static int msp3400c_write_dfp_with_default(struct i2c_client *client,
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int addr, int default_value)
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{
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struct msp3400c *msp = i2c_get_clientdata(client);
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int value = default_value;
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if (addr < DFP_COUNT && -1 != msp->dfp_regs[addr])
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value = msp->dfp_regs[addr];
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return msp3400c_write(client, I2C_MSP3400C_DFP, addr, value);
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}
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/* ----------------------------------------------------------------------- */
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@ -834,7 +858,8 @@ static int msp3400c_thread(void *data)
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goto restart;
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/* carrier detect pass #1 -- main carrier */
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cd = carrier_detect_main; count = CARRIER_COUNT(carrier_detect_main);
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cd = carrier_detect_main;
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count = CARRIER_COUNT(carrier_detect_main);
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if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {
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/* autodetect doesn't work well with AM ... */
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@ -868,13 +893,16 @@ static int msp3400c_thread(void *data)
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case 0: /* 4.5 */
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case 2: /* 6.0 */
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default:
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cd = NULL; count = 0;
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cd = NULL;
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count = 0;
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break;
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}
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if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {
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/* autodetect doesn't work well with AM ... */
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cd = NULL; count = 0; max2 = 0;
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cd = NULL;
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count = 0;
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max2 = 0;
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}
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for (this = 0; this < count; this++) {
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msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
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@ -962,6 +990,8 @@ static int msp3400c_thread(void *data)
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/* unmute */
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msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
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msp3400c_restore_dfp(client);
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if (debug)
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msp3400c_print_mode(msp);
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@ -1207,6 +1237,7 @@ static int msp3410d_thread(void *data)
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msp3400c_settreble(client, msp->treble);
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msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
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msp3400c_write(client, I2C_MSP3400C_DFP, 0x0013, msp->acb);
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msp3400c_restore_dfp(client);
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/* monitor tv audio mode */
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while (msp->watch_stereo) {
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@ -1230,7 +1261,7 @@ static void msp34xxg_set_source(struct i2c_client *client, int source);
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/* (re-)initialize the msp34xxg, according to the current norm in msp->norm
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* return 0 if it worked, -1 if it failed
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*/
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static int msp34xxg_init(struct i2c_client *client)
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static int msp34xxg_reset(struct i2c_client *client)
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{
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struct msp3400c *msp = i2c_get_clientdata(client);
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int modus,std;
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@ -1257,7 +1288,7 @@ static int msp34xxg_init(struct i2c_client *client)
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return -1;
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if (msp3400c_write(client,
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I2C_MSP3400C_DEM,
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0x20/*stanard*/,
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0x20/*standard*/,
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std))
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return -1;
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@ -1265,21 +1296,18 @@ static int msp34xxg_init(struct i2c_client *client)
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standard/audio autodetection right now */
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msp34xxg_set_source(client, msp->source);
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if (msp3400c_write(client, I2C_MSP3400C_DFP,
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0x0e, /* AM/FM Prescale */
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0x3000 /* default: [15:8] 75khz deviation */))
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if (msp3400c_write_dfp_with_default(client, 0x0e, /* AM/FM Prescale */
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0x3000
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/* default: [15:8] 75khz deviation */
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))
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return -1;
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if (msp3400c_write(client, I2C_MSP3400C_DFP,
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0x10, /* NICAM Prescale */
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0x5a00 /* default: 9db gain (as recommended) */))
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if (msp3400c_write_dfp_with_default(client, 0x10, /* NICAM Prescale */
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0x5a00
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/* default: 9db gain (as recommended) */
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))
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return -1;
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if (msp3400c_write(client,
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I2C_MSP3400C_DEM,
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0x20, /* STANDARD SELECT */
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standard /* default: 0x01 for automatic standard select*/))
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return -1;
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return 0;
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}
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@ -1303,7 +1331,7 @@ static int msp34xxg_thread(void *data)
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break;
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/* setup the chip*/
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msp34xxg_init(client);
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msp34xxg_reset(client);
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std = standard;
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if (std != 0x01)
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goto unmute;
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@ -1486,6 +1514,7 @@ static int msp_attach(struct i2c_adapter *adap, int addr, int kind)
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struct msp3400c *msp;
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struct i2c_client *c;
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int (*thread_func)(void *data) = NULL;
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int i;
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client_template.adapter = adap;
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client_template.addr = addr;
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@ -1504,12 +1533,15 @@ static int msp_attach(struct i2c_adapter *adap, int addr, int kind)
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}
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memset(msp,0,sizeof(struct msp3400c));
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msp->norm = VIDEO_MODE_NTSC;
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msp->left = 58880; /* 0db gain */
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msp->right = 58880; /* 0db gain */
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msp->bass = 32768;
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msp->treble = 32768;
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msp->input = -1;
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msp->muted = 0;
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for (i = 0; i < DFP_COUNT; i++)
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msp->dfp_regs[i] = -1;
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i2c_set_clientdata(c, msp);
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init_waitqueue_head(&msp->wq);
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@ -1579,6 +1611,7 @@ static int msp_attach(struct i2c_adapter *adap, int addr, int kind)
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/* startup control thread if needed */
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if (thread_func) {
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msp->kthread = kthread_run(thread_func, c, "msp34xx");
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if (NULL == msp->kthread)
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printk(KERN_WARNING "msp34xx: kernel_thread() failed\n");
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msp_wake_thread(c);
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@ -1587,21 +1620,39 @@ static int msp_attach(struct i2c_adapter *adap, int addr, int kind)
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/* done */
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i2c_attach_client(c);
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/* update our own array */
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for (i = 0; i < MSP3400_MAX; i++) {
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if (NULL == msps[i]) {
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msps[i] = c;
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break;
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}
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}
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return 0;
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}
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static int msp_detach(struct i2c_client *client)
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{
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struct msp3400c *msp = i2c_get_clientdata(client);
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int i;
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/* shutdown control thread */
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if (msp->kthread) {
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msp->restart = 1;
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kthread_stop(msp->kthread);
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}
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msp3400c_reset(client);
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msp3400c_reset(client);
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/* update our own array */
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for (i = 0; i < MSP3400_MAX; i++) {
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if (client == msps[i]) {
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msps[i] = NULL;
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break;
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}
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}
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i2c_detach_client(client);
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kfree(msp);
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kfree(client);
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return 0;
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@ -1753,6 +1804,30 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
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break;
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}
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break;
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/* work-in-progress: hook to control the DFP registers */
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case MSP_SET_DFPREG:
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{
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struct msp_dfpreg *r = arg;
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int i;
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if (r->reg < 0 || r->reg >= DFP_COUNT)
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return -EINVAL;
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for (i = 0; i < sizeof(bl_dfp) / sizeof(int); i++)
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if (r->reg == bl_dfp[i])
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return -EINVAL;
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msp->dfp_regs[r->reg] = r->value;
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msp3400c_write(client, I2C_MSP3400C_DFP, r->reg, r->value);
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return 0;
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}
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case MSP_GET_DFPREG:
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{
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struct msp_dfpreg *r = arg;
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if (r->reg < 0 || r->reg >= DFP_COUNT)
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return -EINVAL;
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r->value = msp3400c_read(client, I2C_MSP3400C_DFP, r->reg);
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return 0;
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}
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/* --- v4l ioctls --- */
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/* take care: bttv does userspace copying, we'll get a
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