From d8c8a05449b06ee7599e7c7d9e8aaeaa07d0fadb Mon Sep 17 00:00:00 2001 From: Stas Sergeev Date: Sun, 4 Dec 2011 00:32:06 +0400 Subject: [PATCH] [saa7134] fix automute logic --- drivers/media/video/saa7134/saa7134-core.c | 1 - drivers/media/video/saa7134/saa7134-tvaudio.c | 63 ++++++++++++++---------- drivers/media/video/saa7134/saa7134-video.c | 2 + drivers/media/video/saa7134/saa7134.h | 1 + 4 files changed, 40 insertions(+), 27 deletions(-) diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c index ca65cda..5fbb4e4 100644 --- a/drivers/media/video/saa7134/saa7134-core.c +++ b/drivers/media/video/saa7134/saa7134-core.c @@ -1263,7 +1263,6 @@ static int saa7134_resume(struct pci_dev *pci_dev) saa7134_tvaudio_setmute(dev); saa7134_tvaudio_setvolume(dev, dev->ctl_volume); saa7134_tvaudio_init(dev); - saa7134_tvaudio_do_scan(dev); saa7134_enable_i2s(dev); saa7134_hw_enable2(dev); diff --git a/drivers/media/video/saa7134/saa7134-tvaudio.c b/drivers/media/video/saa7134/saa7134-tvaudio.c index 57e646b..ec1df6f 100644 --- a/drivers/media/video/saa7134/saa7134-tvaudio.c +++ b/drivers/media/video/saa7134/saa7134-tvaudio.c @@ -332,6 +332,13 @@ static int tvaudio_checkcarrier(struct saa7134_dev *dev, struct mainscan *scan) { __s32 left,right,value; + if (!(dev->tvnorm->id & scan->std)) { + value = 0; + dprintk("skipping %d.%03d MHz [%4s]\n", + scan->carr / 1000, scan->carr % 1000, scan->name); + return 0; + } + if (audio_debug > 1) { int i; dprintk("debug %d:",scan->carr); @@ -348,30 +355,25 @@ static int tvaudio_checkcarrier(struct saa7134_dev *dev, struct mainscan *scan) } printk("\n"); } - if (dev->tvnorm->id & scan->std) { - tvaudio_setcarrier(dev,scan->carr-90,scan->carr-90); - saa_readl(SAA7134_LEVEL_READOUT1 >> 2); - if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY)) - return -1; - left = saa_readl(SAA7134_LEVEL_READOUT1 >> 2); - - tvaudio_setcarrier(dev,scan->carr+90,scan->carr+90); - saa_readl(SAA7134_LEVEL_READOUT1 >> 2); - if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY)) - return -1; - right = saa_readl(SAA7134_LEVEL_READOUT1 >> 2); - - left >>= 16; - right >>= 16; - value = left > right ? left - right : right - left; - dprintk("scanning %d.%03d MHz [%4s] => dc is %5d [%d/%d]\n", - scan->carr / 1000, scan->carr % 1000, - scan->name, value, left, right); - } else { - value = 0; - dprintk("skipping %d.%03d MHz [%4s]\n", - scan->carr / 1000, scan->carr % 1000, scan->name); - } + + tvaudio_setcarrier(dev,scan->carr-90,scan->carr-90); + saa_readl(SAA7134_LEVEL_READOUT1 >> 2); + if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY)) + return -1; + left = saa_readl(SAA7134_LEVEL_READOUT1 >> 2); + + tvaudio_setcarrier(dev,scan->carr+90,scan->carr+90); + saa_readl(SAA7134_LEVEL_READOUT1 >> 2); + if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY)) + return -1; + right = saa_readl(SAA7134_LEVEL_READOUT1 >> 2); + + left >>= 16; + right >>= 16; + value = left > right ? left - right : right - left; + dprintk("scanning %d.%03d MHz [%4s] => dc is %5d [%d/%d]\n", + scan->carr / 1000, scan->carr % 1000, + scan->name, value, left, right); return value; } @@ -546,6 +548,7 @@ static int tvaudio_thread(void *data) dev->tvnorm->name, carrier/1000, carrier%1000, max1, max2); dev->last_carrier = carrier; + dev->automute = 0; } else if (0 != dev->last_carrier) { /* no carrier -- try last detected one as fallback */ @@ -553,6 +556,7 @@ static int tvaudio_thread(void *data) dprintk("audio carrier scan failed, " "using %d.%03d MHz [last detected]\n", carrier/1000, carrier%1000); + dev->automute = 1; } else { /* no carrier + no fallback -- use default */ @@ -560,9 +564,9 @@ static int tvaudio_thread(void *data) dprintk("audio carrier scan failed, " "using %d.%03d MHz [default]\n", carrier/1000, carrier%1000); + dev->automute = 1; } tvaudio_setcarrier(dev,carrier,carrier); - dev->automute = 0; saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x00); saa7134_tvaudio_setmute(dev); /* find the exact tv audio norm */ @@ -1020,6 +1024,7 @@ int saa7134_tvaudio_init2(struct saa7134_dev *dev) } dev->thread.thread = NULL; + dev->thread.scan1 = dev->thread.scan2 = 0; if (my_thread) { saa7134_tvaudio_init(dev); /* start tvaudio thread */ @@ -1029,13 +1034,19 @@ int saa7134_tvaudio_init2(struct saa7134_dev *dev) dev->name); /* XXX: missing error handling here */ } - saa7134_tvaudio_do_scan(dev); } saa7134_enable_i2s(dev); return 0; } +int saa7134_tvaudio_close(struct saa7134_dev *dev) +{ + dev->automute = 1; + /* anything else to undo? */ + return 0; +} + int saa7134_tvaudio_fini(struct saa7134_dev *dev) { /* shutdown tvaudio thread */ diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c index 9cf7914f..417034e 100644 --- a/drivers/media/video/saa7134/saa7134-video.c +++ b/drivers/media/video/saa7134/saa7134-video.c @@ -1462,6 +1462,8 @@ static int video_release(struct file *file) struct saa6588_command cmd; unsigned long flags; + saa7134_tvaudio_close(dev); + /* turn off overlay */ if (res_check(fh, RESOURCE_OVERLAY)) { spin_lock_irqsave(&dev->slock,flags); diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h index 9b55068..621b1ed 100644 --- a/drivers/media/video/saa7134/saa7134.h +++ b/drivers/media/video/saa7134/saa7134.h @@ -817,6 +817,7 @@ void saa7134_tvaudio_init(struct saa7134_dev *dev); int saa7134_tvaudio_init2(struct saa7134_dev *dev); int saa7134_tvaudio_fini(struct saa7134_dev *dev); int saa7134_tvaudio_do_scan(struct saa7134_dev *dev); +int saa7134_tvaudio_close(struct saa7134_dev *dev); int saa_dsp_writel(struct saa7134_dev *dev, int reg, u32 value); -- 1.7.6.4