V4L/DVB (9131): cx18: Add entries for the Leadtek PVR2100 and Toshiba Qosmio DVB...

[linux-2.6-omap-h63xx.git] / drivers / media / video / cx18 / cx18-av-audio.c

diff --git a/drivers/media/video/cx18/cx18-av-audio.c b/drivers/media/video/cx18/cx18-av-audio.c
index c40a286de1b97a261542662fc114606a598f8f2d..0b55837880a711d5ef11805a01371c6e91bd122a 100644 (file)
--- a/drivers/media/video/cx18/cx18-av-audio.c
+++ b/drivers/media/video/cx18/cx18-av-audio.c
@@ -30,7 +30,6 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq)
        if (freq != 32000 && freq != 44100 && freq != 48000)
                return -EINVAL;
 
-       /* common for all inputs and rates */
        /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x10 */
        cx18_av_write(cx, 0x127, 0x50);
 
@@ -38,15 +37,30 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq)
                switch (freq) {
                case 32000:
                        /* VID_PLL and AUX_PLL */
-                       cx18_av_write4(cx, 0x108, 0x1006040f);
+                       cx18_av_write4(cx, 0x108, 0x1408040f);
 
                        /* AUX_PLL_FRAC */
-                       cx18_av_write4(cx, 0x110, 0x01bb39ee);
+                       /* 0x8.9504318a * 28,636,363.636 / 0x14 = 32000 * 384 */
+                       cx18_av_write4(cx, 0x110, 0x012a0863);
 
-                       /* src3/4/6_ctl = 0x0801f77f */
+                       /* src3/4/6_ctl */
+                       /* 0x1.f77f = (4 * 15734.26) / 32000 */
                        cx18_av_write4(cx, 0x900, 0x0801f77f);
                        cx18_av_write4(cx, 0x904, 0x0801f77f);
                        cx18_av_write4(cx, 0x90c, 0x0801f77f);
+
+                       /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x14 */
+                       cx18_av_write(cx, 0x127, 0x54);
+
+                       /* AUD_COUNT = 0x2fff = 8 samples * 4 * 384 - 1 */
+                       cx18_av_write4(cx, 0x12c, 0x11202fff);
+
+                       /*
+                        * EN_AV_LOCK = 1
+                        * VID_COUNT = 0x0d2ef8 = 107999.000 * 8 =
+                        *  ((8 samples/32,000) * (13,500,000 * 8) * 4 - 1) * 8
+                        */
+                       cx18_av_write4(cx, 0x128, 0xa10d2ef8);
                        break;
 
                case 44100:
@@ -54,12 +68,24 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq)
                        cx18_av_write4(cx, 0x108, 0x1009040f);
 
                        /* AUX_PLL_FRAC */
-                       cx18_av_write4(cx, 0x110, 0x00ec6bd6);
+                       /* 0x9.7635e7 * 28,636,363.63 / 0x10 = 44100 * 384 */
+                       cx18_av_write4(cx, 0x110, 0x00ec6bce);
 
-                       /* src3/4/6_ctl = 0x08016d59 */
+                       /* src3/4/6_ctl */
+                       /* 0x1.6d59 = (4 * 15734.26) / 44100 */
                        cx18_av_write4(cx, 0x900, 0x08016d59);
                        cx18_av_write4(cx, 0x904, 0x08016d59);
                        cx18_av_write4(cx, 0x90c, 0x08016d59);
+
+                       /* AUD_COUNT = 0x92ff = 49 samples * 2 * 384 - 1 */
+                       cx18_av_write4(cx, 0x12c, 0x112092ff);
+
+                       /*
+                        * EN_AV_LOCK = 1
+                        * VID_COUNT = 0x1d4bf8 = 239999.000 * 8 =
+                        *  ((49 samples/44,100) * (13,500,000 * 8) * 2 - 1) * 8
+                        */
+                       cx18_av_write4(cx, 0x128, 0xa11d4bf8);
                        break;
 
                case 48000:
@@ -67,12 +93,24 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq)
                        cx18_av_write4(cx, 0x108, 0x100a040f);
 
                        /* AUX_PLL_FRAC */
-                       cx18_av_write4(cx, 0x110, 0x0098d6e5);
+                       /* 0xa.4c6b6ea * 28,636,363.63 / 0x10 = 48000 * 384 */
+                       cx18_av_write4(cx, 0x110, 0x0098d6dd);
 
-                       /* src3/4/6_ctl = 0x08014faa */
+                       /* src3/4/6_ctl */
+                       /* 0x1.4faa = (4 * 15734.26) / 48000 */
                        cx18_av_write4(cx, 0x900, 0x08014faa);
                        cx18_av_write4(cx, 0x904, 0x08014faa);
                        cx18_av_write4(cx, 0x90c, 0x08014faa);
+
+                       /* AUD_COUNT = 0x5fff = 4 samples * 16 * 384 - 1 */
+                       cx18_av_write4(cx, 0x12c, 0x11205fff);
+
+                       /*
+                        * EN_AV_LOCK = 1
+                        * VID_COUNT = 0x1193f8 = 143999.000 * 8 =
+                        *  ((4 samples/48,000) * (13,500,000 * 8) * 16 - 1) * 8
+                        */
+                       cx18_av_write4(cx, 0x128, 0xa11193f8);
                        break;
                }
        } else {
@@ -82,18 +120,31 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq)
                        cx18_av_write4(cx, 0x108, 0x1e08040f);
 
                        /* AUX_PLL_FRAC */
-                       cx18_av_write4(cx, 0x110, 0x012a0869);
+                       /* 0x8.9504318 * 28,636,363.63 / 0x1e = 32000 * 256 */
+                       cx18_av_write4(cx, 0x110, 0x012a0863);
 
-                       /* src1_ctl = 0x08010000 */
+                       /* src1_ctl */
+                       /* 0x1.0000 = 32000/32000 */
                        cx18_av_write4(cx, 0x8f8, 0x08010000);
 
-                       /* src3/4/6_ctl = 0x08020000 */
+                       /* src3/4/6_ctl */
+                       /* 0x2.0000 = 2 * (32000/32000) */
                        cx18_av_write4(cx, 0x900, 0x08020000);
                        cx18_av_write4(cx, 0x904, 0x08020000);
                        cx18_av_write4(cx, 0x90c, 0x08020000);
 
                        /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x14 */
                        cx18_av_write(cx, 0x127, 0x54);
+
+                       /* AUD_COUNT = 0x1fff = 8 samples * 4 * 256 - 1 */
+                       cx18_av_write4(cx, 0x12c, 0x11201fff);
+
+                       /*
+                        * EN_AV_LOCK = 1
+                        * VID_COUNT = 0x0d2ef8 = 107999.000 * 8 =
+                        *  ((8 samples/32,000) * (13,500,000 * 8) * 4 - 1) * 8
+                        */
+                       cx18_av_write4(cx, 0x128, 0xa10d2ef8);
                        break;
 
                case 44100:
@@ -101,15 +152,28 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq)
                        cx18_av_write4(cx, 0x108, 0x1809040f);
 
                        /* AUX_PLL_FRAC */
-                       cx18_av_write4(cx, 0x110, 0x00ec6bd6);
+                       /* 0x9.7635e74 * 28,636,363.63 / 0x18 = 44100 * 256 */
+                       cx18_av_write4(cx, 0x110, 0x00ec6bce);
 
-                       /* src1_ctl = 0x08010000 */
+                       /* src1_ctl */
+                       /* 0x1.60cd = 44100/32000 */
                        cx18_av_write4(cx, 0x8f8, 0x080160cd);
 
-                       /* src3/4/6_ctl = 0x08020000 */
+                       /* src3/4/6_ctl */
+                       /* 0x1.7385 = 2 * (32000/44100) */
                        cx18_av_write4(cx, 0x900, 0x08017385);
                        cx18_av_write4(cx, 0x904, 0x08017385);
                        cx18_av_write4(cx, 0x90c, 0x08017385);
+
+                       /* AUD_COUNT = 0x61ff = 49 samples * 2 * 256 - 1 */
+                       cx18_av_write4(cx, 0x12c, 0x112061ff);
+
+                       /*
+                        * EN_AV_LOCK = 1
+                        * VID_COUNT = 0x1d4bf8 = 239999.000 * 8 =
+                        *  ((49 samples/44,100) * (13,500,000 * 8) * 2 - 1) * 8
+                        */
+                       cx18_av_write4(cx, 0x128, 0xa11d4bf8);
                        break;
 
                case 48000:
@@ -117,15 +181,28 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq)
                        cx18_av_write4(cx, 0x108, 0x180a040f);
 
                        /* AUX_PLL_FRAC */
-                       cx18_av_write4(cx, 0x110, 0x0098d6e5);
+                       /* 0xa.4c6b6ea * 28,636,363.63 / 0x18 = 48000 * 256 */
+                       cx18_av_write4(cx, 0x110, 0x0098d6dd);
 
-                       /* src1_ctl = 0x08010000 */
+                       /* src1_ctl */
+                       /* 0x1.8000 = 48000/32000 */
                        cx18_av_write4(cx, 0x8f8, 0x08018000);
 
-                       /* src3/4/6_ctl = 0x08020000 */
+                       /* src3/4/6_ctl */
+                       /* 0x1.5555 = 2 * (32000/48000) */
                        cx18_av_write4(cx, 0x900, 0x08015555);
                        cx18_av_write4(cx, 0x904, 0x08015555);
                        cx18_av_write4(cx, 0x90c, 0x08015555);
+
+                       /* AUD_COUNT = 0x3fff = 4 samples * 16 * 256 - 1 */
+                       cx18_av_write4(cx, 0x12c, 0x11203fff);
+
+                       /*
+                        * EN_AV_LOCK = 1
+                        * VID_COUNT = 0x1193f8 = 143999.000 * 8 =
+                        *  ((4 samples/48,000) * (13,500,000 * 8) * 16 - 1) * 8
+                        */
+                       cx18_av_write4(cx, 0x128, 0xa11193f8);
                        break;
                }
        }