From 7d27e5f3b2bbe8ca82a41dce5203a67d7595ab09 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 2 Apr 2006 17:50:42 +0200 Subject: Add support for VIDIOC_INT_S_CRYSTAL_FREQ internal command. From: Hans Verkuil Some saa7115-based cards use a different crystal frequency and a different audio clock generation. Add a new VIDIOC_INT_S_CRYSTAL_FREQ command to be able to set these values. Also change the default APLL setting to 0. It makes no sense to have the audio clock independent from the video clock, this can lead to audio/video synchronization problems. Setting this to 0 is also consistent with the old saa7114.c source and the way the Hauppauge Windows driver sets it. Signed-off-by: Hans Verkuil --- linux/drivers/media/video/saa7115.c | 51 +++++++++++++++++++++++++++++++------ 1 file changed, 43 insertions(+), 8 deletions(-) (limited to 'linux/drivers/media/video/saa7115.c') diff --git a/linux/drivers/media/video/saa7115.c b/linux/drivers/media/video/saa7115.c index 1ecfacea5..6c40aa397 100644 --- a/linux/drivers/media/video/saa7115.c +++ b/linux/drivers/media/video/saa7115.c @@ -83,6 +83,10 @@ struct saa7115_state { int sat; enum v4l2_chip_ident ident; u32 audclk_freq; + u32 crystal_freq; + u8 ucgc; + u8 cgcdiv; + u8 apll; }; /* ----------------------------------------------------------------------- */ @@ -388,10 +392,6 @@ static const unsigned char saa7113_init_auto_input[] = { #endif static const unsigned char saa7115_init_misc[] = { - 0x38, 0x03, /* audio stuff */ - 0x39, 0x10, - 0x3a, 0x08, - 0x81, 0x01, /* reg 0x15,0x16 define blanking window */ 0x82, 0x00, 0x83, 0x01, /* I port settings */ @@ -597,6 +597,7 @@ static int saa7115_set_audio_clock_freq(struct i2c_client *client, u32 freq) u32 acni; u32 hz; u64 f; + u8 acc = 0; /* reg 0x3a, audio clock control */ v4l_dbg(1, debug, client, "set audio clock freq: %d\n", freq); @@ -604,18 +605,34 @@ static int saa7115_set_audio_clock_freq(struct i2c_client *client, u32 freq) if (freq < 32000 || freq > 48000) return -EINVAL; + /* The saa7113 has no audio clock */ + if (state->ident == V4L2_IDENT_SAA7113) + return 0; + /* hz is the refresh rate times 100 */ hz = (state->std & V4L2_STD_525_60) ? 5994 : 5000; /* acpf = (256 * freq) / field_frequency == (256 * 100 * freq) / hz */ acpf = (25600 * freq) / hz; /* acni = (256 * freq * 2^23) / crystal_frequency = (freq * 2^(8+23)) / crystal_frequency = - (freq << 31) / 32.11 MHz */ + (freq << 31) / crystal_frequency */ f = freq; f = f << 31; - do_div(f, 32110000); + do_div(f, state->crystal_freq); acni = f; + if (state->ucgc) { + acpf = acpf * state->cgcdiv / 16; + acni = acni * state->cgcdiv / 16; + acc = 0x80; + if (state->cgcdiv == 3) + acc |= 0x40; + } + if (state->apll) + acc |= 0x08; + saa7115_write(client, 0x38, 0x03); + saa7115_write(client, 0x39, 0x10); + saa7115_write(client, 0x3a, acc); saa7115_write(client, 0x30, acpf & 0xff); saa7115_write(client, 0x31, (acpf >> 8) & 0xff); saa7115_write(client, 0x32, (acpf >> 16) & 0x03); @@ -1273,6 +1290,21 @@ static int saa7115_command(struct i2c_client *client, unsigned int cmd, void *ar } break; + case VIDIOC_INT_S_CRYSTAL_FREQ: + { + struct v4l2_crystal_freq *freq = arg; + + if (freq->freq != SAA7115_FREQ_32_11_MHZ && + freq->freq != SAA7115_FREQ_24_576_MHZ) + return -EINVAL; + state->crystal_freq = freq->freq; + state->cgcdiv = (freq->flags & SAA7115_FREQ_FL_CGCDIV) ? 3 : 4; + state->ucgc = (freq->flags & SAA7115_FREQ_FL_UCGC) ? 1 : 0; + state->apll = (freq->flags & SAA7115_FREQ_FL_APLL) ? 1 : 0; + saa7115_set_audio_clock_freq(client, state->audclk_freq); + break; + } + case VIDIOC_INT_DECODE_VBI_LINE: saa7115_decode_vbi_line(client, arg); break; @@ -1422,10 +1454,13 @@ static int saa7115_attach(struct i2c_adapter *adapter, int address, int kind) v4l_dbg(1, debug, client, "writing init values\n"); /* init to 60hz/48khz */ - if (state->ident == V4L2_IDENT_SAA7113) + if (state->ident == V4L2_IDENT_SAA7113) { + state->crystal_freq = SAA7115_FREQ_24_576_MHZ; saa7115_writeregs(client, saa7113_init_auto_input); - else + } else { + state->crystal_freq = SAA7115_FREQ_32_11_MHZ; saa7115_writeregs(client, saa7115_init_auto_input); + } saa7115_writeregs(client, saa7115_init_misc); saa7115_writeregs(client, saa7115_cfg_60hz_fullres_x); saa7115_writeregs(client, saa7115_cfg_60hz_fullres_y); -- cgit v1.2.3 From cb228051a31b5d0f78a3b3e7e8a960d1658afcf5 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 2 Apr 2006 18:35:00 +0200 Subject: Fix video input setting of em28xx, use _INT_S_VIDEO_ROUTING in tvp5150 From: Hans Verkuil - Use new routing input defines in em28xx-cards.c - Fix S-Video settings for tvp5150-based cards (input was copied from saa7115 based cards and worked only because S-Video was selected in the default: case) - Replace VIDIOC_S_INPUT by VIDIOC_INT_S_VIDEO_ROUTING in em28xx-video.c - Remove the now obsolete VIDIOC_S_INPUT handler in saa7115.c - Add VIDIOC_INT_G/S_VIDEO_ROUTING in tvp5150.c - Add new media/tvp5150.h with the routing defines. Signed-off-by: Hans Verkuil --- linux/drivers/media/video/saa7115.c | 28 ---------------------------- 1 file changed, 28 deletions(-) (limited to 'linux/drivers/media/video/saa7115.c') diff --git a/linux/drivers/media/video/saa7115.c b/linux/drivers/media/video/saa7115.c index 6c40aa397..ea7c7c65b 100644 --- a/linux/drivers/media/video/saa7115.c +++ b/linux/drivers/media/video/saa7115.c @@ -1251,34 +1251,6 @@ static int saa7115_command(struct i2c_client *client, unsigned int cmd, void *ar break; } - case VIDIOC_G_INPUT: - *(int *)arg = state->input; - break; - - case VIDIOC_S_INPUT: - v4l_dbg(1, debug, client, "decoder set input %d\n", *iarg); - /* inputs from 0-9 are available */ - if (*iarg < 0 || *iarg > 9) { - return -EINVAL; - } - - if (state->input == *iarg) - break; - v4l_dbg(1, debug, client, "now setting %s input\n", - *iarg >= 6 ? "S-Video" : "Composite"); - state->input = *iarg; - - /* select mode */ - saa7115_write(client, 0x02, - (saa7115_read(client, 0x02) & 0xf0) | - state->input); - - /* bypass chrominance trap for modes 6..9 */ - saa7115_write(client, 0x09, - (saa7115_read(client, 0x09) & 0x7f) | - (state->input < 6 ? 0x0 : 0x80)); - break; - case VIDIOC_STREAMON: case VIDIOC_STREAMOFF: v4l_dbg(1, debug, client, "%s output\n", -- cgit v1.2.3