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path: root/drivers/media/video/cx18/cx18-audio.c
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Diffstat (limited to 'drivers/media/video/cx18/cx18-audio.c')
-rw-r--r--drivers/media/video/cx18/cx18-audio.c52
1 files changed, 14 insertions, 38 deletions
diff --git a/drivers/media/video/cx18/cx18-audio.c b/drivers/media/video/cx18/cx18-audio.c
index 57beddf0af4d..bb5c5165dd5f 100644
--- a/drivers/media/video/cx18/cx18-audio.c
+++ b/drivers/media/video/cx18/cx18-audio.c
@@ -23,7 +23,6 @@
23 23
24#include "cx18-driver.h" 24#include "cx18-driver.h"
25#include "cx18-io.h" 25#include "cx18-io.h"
26#include "cx18-i2c.h"
27#include "cx18-cards.h" 26#include "cx18-cards.h"
28#include "cx18-audio.h" 27#include "cx18-audio.h"
29 28
@@ -33,55 +32,32 @@
33 settings. */ 32 settings. */
34int cx18_audio_set_io(struct cx18 *cx) 33int cx18_audio_set_io(struct cx18 *cx)
35{ 34{
35 const struct cx18_card_audio_input *in;
36 struct v4l2_routing route; 36 struct v4l2_routing route;
37 u32 audio_input;
38 u32 val; 37 u32 val;
39 int mux_input;
40 int err; 38 int err;
41 39
42 /* Determine which input to use */ 40 /* Determine which input to use */
43 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags)) { 41 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags))
44 audio_input = cx->card->radio_input.audio_input; 42 in = &cx->card->radio_input;
45 mux_input = cx->card->radio_input.muxer_input; 43 else
46 } else { 44 in = &cx->card->audio_inputs[cx->audio_input];
47 audio_input =
48 cx->card->audio_inputs[cx->audio_input].audio_input;
49 mux_input =
50 cx->card->audio_inputs[cx->audio_input].muxer_input;
51 }
52 45
53 /* handle muxer chips */ 46 /* handle muxer chips */
54 route.input = mux_input; 47 route.input = in->muxer_input;
55 route.output = 0; 48 route.output = 0;
56 cx18_i2c_hw(cx, cx->card->hw_muxer, VIDIOC_INT_S_AUDIO_ROUTING, &route); 49 v4l2_subdev_call(cx->sd_extmux, audio, s_routing, &route);
57 50
58 route.input = audio_input; 51 route.input = in->audio_input;
59 err = cx18_i2c_hw(cx, cx->card->hw_audio_ctrl, 52 err = cx18_call_hw_err(cx, cx->card->hw_audio_ctrl,
60 VIDIOC_INT_S_AUDIO_ROUTING, &route); 53 audio, s_routing, &route);
61 if (err) 54 if (err)
62 return err; 55 return err;
63 56
57 /* FIXME - this internal mux should be abstracted to a subdev */
64 val = cx18_read_reg(cx, CX18_AUDIO_ENABLE) & ~0x30; 58 val = cx18_read_reg(cx, CX18_AUDIO_ENABLE) & ~0x30;
65 val |= (audio_input > CX18_AV_AUDIO_SERIAL2) ? 0x20 : 59 val |= (in->audio_input > CX18_AV_AUDIO_SERIAL2) ? 0x20 :
66 (audio_input << 4); 60 (in->audio_input << 4);
67 cx18_write_reg(cx, val | 0xb00, CX18_AUDIO_ENABLE); 61 cx18_write_reg_expect(cx, val | 0xb00, CX18_AUDIO_ENABLE, val, 0x30);
68 cx18_vapi(cx, CX18_APU_RESETAI, 1, 0);
69 return 0; 62 return 0;
70} 63}
71
72void cx18_audio_set_route(struct cx18 *cx, struct v4l2_routing *route)
73{
74 cx18_i2c_hw(cx, cx->card->hw_audio_ctrl,
75 VIDIOC_INT_S_AUDIO_ROUTING, route);
76}
77
78void cx18_audio_set_audio_clock_freq(struct cx18 *cx, u8 freq)
79{
80 static u32 freqs[3] = { 44100, 48000, 32000 };
81
82 /* The audio clock of the digitizer must match the codec sample
83 rate otherwise you get some very strange effects. */
84 if (freq > 2)
85 return;
86 cx18_call_i2c_clients(cx, VIDIOC_INT_AUDIO_CLOCK_FREQ, &freqs[freq]);
87}