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-rw-r--r--drivers/media/video/cx18/cx18-av-audio.c41
1 files changed, 29 insertions, 12 deletions
diff --git a/drivers/media/video/cx18/cx18-av-audio.c b/drivers/media/video/cx18/cx18-av-audio.c
index c40a286de1b9..7245d37ef34f 100644
--- 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)
30 if (freq != 32000 && freq != 44100 && freq != 48000) 30 if (freq != 32000 && freq != 44100 && freq != 48000)
31 return -EINVAL; 31 return -EINVAL;
32 32
33 /* common for all inputs and rates */
34 /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x10 */ 33 /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x10 */
35 cx18_av_write(cx, 0x127, 0x50); 34 cx18_av_write(cx, 0x127, 0x50);
36 35
@@ -38,15 +37,20 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq)
38 switch (freq) { 37 switch (freq) {
39 case 32000: 38 case 32000:
40 /* VID_PLL and AUX_PLL */ 39 /* VID_PLL and AUX_PLL */
41 cx18_av_write4(cx, 0x108, 0x1006040f); 40 cx18_av_write4(cx, 0x108, 0x1408040f);
42 41
43 /* AUX_PLL_FRAC */ 42 /* AUX_PLL_FRAC */
44 cx18_av_write4(cx, 0x110, 0x01bb39ee); 43 /* 0x8.9504318a * 28,636,363.636 / 0x14 = 32000 * 384 */
44 cx18_av_write4(cx, 0x110, 0x012a0863);
45 45
46 /* src3/4/6_ctl = 0x0801f77f */ 46 /* src3/4/6_ctl */
47 /* 0x1.f77f = (4 * 15734.26) / 32000 */
47 cx18_av_write4(cx, 0x900, 0x0801f77f); 48 cx18_av_write4(cx, 0x900, 0x0801f77f);
48 cx18_av_write4(cx, 0x904, 0x0801f77f); 49 cx18_av_write4(cx, 0x904, 0x0801f77f);
49 cx18_av_write4(cx, 0x90c, 0x0801f77f); 50 cx18_av_write4(cx, 0x90c, 0x0801f77f);
51
52 /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x14 */
53 cx18_av_write(cx, 0x127, 0x54);
50 break; 54 break;
51 55
52 case 44100: 56 case 44100:
@@ -54,9 +58,11 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq)
54 cx18_av_write4(cx, 0x108, 0x1009040f); 58 cx18_av_write4(cx, 0x108, 0x1009040f);
55 59
56 /* AUX_PLL_FRAC */ 60 /* AUX_PLL_FRAC */
61 /* 0x9.7635eb * 28,636,363 / 0x10 = 44100 * 384 */
57 cx18_av_write4(cx, 0x110, 0x00ec6bd6); 62 cx18_av_write4(cx, 0x110, 0x00ec6bd6);
58 63
59 /* src3/4/6_ctl = 0x08016d59 */ 64 /* src3/4/6_ctl */
65 /* 0x1.6d59 = (4 * 15734.26) / 44100 */
60 cx18_av_write4(cx, 0x900, 0x08016d59); 66 cx18_av_write4(cx, 0x900, 0x08016d59);
61 cx18_av_write4(cx, 0x904, 0x08016d59); 67 cx18_av_write4(cx, 0x904, 0x08016d59);
62 cx18_av_write4(cx, 0x90c, 0x08016d59); 68 cx18_av_write4(cx, 0x90c, 0x08016d59);
@@ -67,9 +73,11 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq)
67 cx18_av_write4(cx, 0x108, 0x100a040f); 73 cx18_av_write4(cx, 0x108, 0x100a040f);
68 74
69 /* AUX_PLL_FRAC */ 75 /* AUX_PLL_FRAC */
76 /* 0xa.4c6b728 * 28,636,363 / 0x10 = 48000 * 384 */
70 cx18_av_write4(cx, 0x110, 0x0098d6e5); 77 cx18_av_write4(cx, 0x110, 0x0098d6e5);
71 78
72 /* src3/4/6_ctl = 0x08014faa */ 79 /* src3/4/6_ctl */
80 /* 0x1.4faa = (4 * 15734.26) / 48000 */
73 cx18_av_write4(cx, 0x900, 0x08014faa); 81 cx18_av_write4(cx, 0x900, 0x08014faa);
74 cx18_av_write4(cx, 0x904, 0x08014faa); 82 cx18_av_write4(cx, 0x904, 0x08014faa);
75 cx18_av_write4(cx, 0x90c, 0x08014faa); 83 cx18_av_write4(cx, 0x90c, 0x08014faa);
@@ -82,12 +90,15 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq)
82 cx18_av_write4(cx, 0x108, 0x1e08040f); 90 cx18_av_write4(cx, 0x108, 0x1e08040f);
83 91
84 /* AUX_PLL_FRAC */ 92 /* AUX_PLL_FRAC */
93 /* 0x8.9504348 * 28,636,363 / 0x1e = 32000 * 256 */
85 cx18_av_write4(cx, 0x110, 0x012a0869); 94 cx18_av_write4(cx, 0x110, 0x012a0869);
86 95
87 /* src1_ctl = 0x08010000 */ 96 /* src1_ctl */
97 /* 0x1.0000 = 32000/32000 */
88 cx18_av_write4(cx, 0x8f8, 0x08010000); 98 cx18_av_write4(cx, 0x8f8, 0x08010000);
89 99
90 /* src3/4/6_ctl = 0x08020000 */ 100 /* src3/4/6_ctl */
101 /* 0x2.0000 = 2 * (32000/32000) */
91 cx18_av_write4(cx, 0x900, 0x08020000); 102 cx18_av_write4(cx, 0x900, 0x08020000);
92 cx18_av_write4(cx, 0x904, 0x08020000); 103 cx18_av_write4(cx, 0x904, 0x08020000);
93 cx18_av_write4(cx, 0x90c, 0x08020000); 104 cx18_av_write4(cx, 0x90c, 0x08020000);
@@ -101,12 +112,15 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq)
101 cx18_av_write4(cx, 0x108, 0x1809040f); 112 cx18_av_write4(cx, 0x108, 0x1809040f);
102 113
103 /* AUX_PLL_FRAC */ 114 /* AUX_PLL_FRAC */
115 /* 0x9.76346B * 28,636,363 / 0x18 = 44100 * 256 */
104 cx18_av_write4(cx, 0x110, 0x00ec6bd6); 116 cx18_av_write4(cx, 0x110, 0x00ec6bd6);
105 117
106 /* src1_ctl = 0x08010000 */ 118 /* src1_ctl */
119 /* 0x1.60cd = 44100/32000 */
107 cx18_av_write4(cx, 0x8f8, 0x080160cd); 120 cx18_av_write4(cx, 0x8f8, 0x080160cd);
108 121
109 /* src3/4/6_ctl = 0x08020000 */ 122 /* src3/4/6_ctl */
123 /* 0x1.7385 = 2 * (32000/44100) */
110 cx18_av_write4(cx, 0x900, 0x08017385); 124 cx18_av_write4(cx, 0x900, 0x08017385);
111 cx18_av_write4(cx, 0x904, 0x08017385); 125 cx18_av_write4(cx, 0x904, 0x08017385);
112 cx18_av_write4(cx, 0x90c, 0x08017385); 126 cx18_av_write4(cx, 0x90c, 0x08017385);
@@ -117,12 +131,15 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq)
117 cx18_av_write4(cx, 0x108, 0x180a040f); 131 cx18_av_write4(cx, 0x108, 0x180a040f);
118 132
119 /* AUX_PLL_FRAC */ 133 /* AUX_PLL_FRAC */
134 /* 0xa.4c6b728 * 28,636,363 / 0x18 = 48000 * 256 */
120 cx18_av_write4(cx, 0x110, 0x0098d6e5); 135 cx18_av_write4(cx, 0x110, 0x0098d6e5);
121 136
122 /* src1_ctl = 0x08010000 */ 137 /* src1_ctl */
138 /* 0x1.8000 = 48000/32000 */
123 cx18_av_write4(cx, 0x8f8, 0x08018000); 139 cx18_av_write4(cx, 0x8f8, 0x08018000);
124 140
125 /* src3/4/6_ctl = 0x08020000 */ 141 /* src3/4/6_ctl */
142 /* 0x1.5555 = 2 * (32000/48000) */
126 cx18_av_write4(cx, 0x900, 0x08015555); 143 cx18_av_write4(cx, 0x900, 0x08015555);
127 cx18_av_write4(cx, 0x904, 0x08015555); 144 cx18_av_write4(cx, 0x904, 0x08015555);
128 cx18_av_write4(cx, 0x90c, 0x08015555); 145 cx18_av_write4(cx, 0x90c, 0x08015555);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-19 06:50:33 -0500