aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/video/pvrusb2/pvrusb2-video-v4l.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-video-v4l.c')
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-video-v4l.c186
1 files changed, 0 insertions, 186 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-video-v4l.c b/drivers/media/video/pvrusb2/pvrusb2-video-v4l.c
index 4e0c0881b7b..ce8332dd9cc 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-video-v4l.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-video-v4l.c
@@ -30,7 +30,6 @@
30#include "pvrusb2-video-v4l.h" 30#include "pvrusb2-video-v4l.h"
31 31
32 32
33#include "pvrusb2-i2c-cmd-v4l2.h"
34 33
35#include "pvrusb2-hdw-internal.h" 34#include "pvrusb2-hdw-internal.h"
36#include "pvrusb2-debug.h" 35#include "pvrusb2-debug.h"
@@ -62,191 +61,6 @@ static const struct routing_scheme routing_schemes[] = {
62 }, 61 },
63}; 62};
64 63
65struct pvr2_v4l_decoder {
66 struct pvr2_i2c_handler handler;
67 struct pvr2_decoder_ctrl ctrl;
68 struct pvr2_i2c_client *client;
69 struct pvr2_hdw *hdw;
70 unsigned long stale_mask;
71};
72
73
74
75static void set_input(struct pvr2_v4l_decoder *ctxt)
76{
77 struct pvr2_hdw *hdw = ctxt->hdw;
78 struct v4l2_routing route;
79 const struct routing_scheme *sp;
80 unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
81
82 pvr2_trace(PVR2_TRACE_CHIPS,"i2c v4l2 set_input(%d)",hdw->input_val);
83
84 if ((sid < ARRAY_SIZE(routing_schemes)) &&
85 ((sp = routing_schemes + sid) != NULL) &&
86 (hdw->input_val >= 0) &&
87 (hdw->input_val < sp->cnt)) {
88 route.input = sp->def[hdw->input_val];
89 } else {
90 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
91 "*** WARNING *** i2c v4l2 set_input:"
92 " Invalid routing scheme (%u) and/or input (%d)",
93 sid,hdw->input_val);
94 return;
95 }
96
97 route.output = 0;
98 pvr2_i2c_client_cmd(ctxt->client,VIDIOC_INT_S_VIDEO_ROUTING,&route);
99}
100
101
102static int check_input(struct pvr2_v4l_decoder *ctxt)
103{
104 struct pvr2_hdw *hdw = ctxt->hdw;
105 return hdw->input_dirty != 0;
106}
107
108
109static void set_audio(struct pvr2_v4l_decoder *ctxt)
110{
111 u32 val;
112 struct pvr2_hdw *hdw = ctxt->hdw;
113
114 pvr2_trace(PVR2_TRACE_CHIPS,"i2c v4l2 set_audio %d",
115 hdw->srate_val);
116 switch (hdw->srate_val) {
117 default:
118 case V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000:
119 val = 48000;
120 break;
121 case V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100:
122 val = 44100;
123 break;
124 case V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000:
125 val = 32000;
126 break;
127 }
128 pvr2_i2c_client_cmd(ctxt->client,VIDIOC_INT_AUDIO_CLOCK_FREQ,&val);
129}
130
131
132static int check_audio(struct pvr2_v4l_decoder *ctxt)
133{
134 struct pvr2_hdw *hdw = ctxt->hdw;
135 return hdw->srate_dirty != 0;
136}
137
138
139struct pvr2_v4l_decoder_ops {
140 void (*update)(struct pvr2_v4l_decoder *);
141 int (*check)(struct pvr2_v4l_decoder *);
142};
143
144
145static const struct pvr2_v4l_decoder_ops decoder_ops[] = {
146 { .update = set_input, .check = check_input},
147 { .update = set_audio, .check = check_audio},
148};
149
150
151static void decoder_detach(struct pvr2_v4l_decoder *ctxt)
152{
153 ctxt->client->handler = NULL;
154 pvr2_hdw_set_decoder(ctxt->hdw,NULL);
155 kfree(ctxt);
156}
157
158
159static int decoder_check(struct pvr2_v4l_decoder *ctxt)
160{
161 unsigned long msk;
162 unsigned int idx;
163
164 for (idx = 0; idx < ARRAY_SIZE(decoder_ops); idx++) {
165 msk = 1 << idx;
166 if (ctxt->stale_mask & msk) continue;
167 if (decoder_ops[idx].check(ctxt)) {
168 ctxt->stale_mask |= msk;
169 }
170 }
171 return ctxt->stale_mask != 0;
172}
173
174
175static void decoder_update(struct pvr2_v4l_decoder *ctxt)
176{
177 unsigned long msk;
178 unsigned int idx;
179
180 for (idx = 0; idx < ARRAY_SIZE(decoder_ops); idx++) {
181 msk = 1 << idx;
182 if (!(ctxt->stale_mask & msk)) continue;
183 ctxt->stale_mask &= ~msk;
184 decoder_ops[idx].update(ctxt);
185 }
186}
187
188
189static int decoder_detect(struct pvr2_i2c_client *cp)
190{
191 /* Attempt to query the decoder - let's see if it will answer */
192 struct v4l2_tuner vt;
193 int ret;
194
195 memset(&vt,0,sizeof(vt));
196 ret = pvr2_i2c_client_cmd(cp,VIDIOC_G_TUNER,&vt);
197 return ret == 0; /* Return true if it answered */
198}
199
200
201static void decoder_enable(struct pvr2_v4l_decoder *ctxt,int fl)
202{
203 pvr2_trace(PVR2_TRACE_CHIPS,"i2c v4l2 decoder_enable(%d)",fl);
204 pvr2_v4l2_cmd_stream(ctxt->client,fl);
205}
206
207
208static unsigned int decoder_describe(struct pvr2_v4l_decoder *ctxt,char *buf,unsigned int cnt)
209{
210 return scnprintf(buf,cnt,"handler: pvrusb2-video-v4l");
211}
212
213
214static const struct pvr2_i2c_handler_functions hfuncs = {
215 .detach = (void (*)(void *))decoder_detach,
216 .check = (int (*)(void *))decoder_check,
217 .update = (void (*)(void *))decoder_update,
218 .describe = (unsigned int (*)(void *,char *,unsigned int))decoder_describe,
219};
220
221
222int pvr2_i2c_decoder_v4l_setup(struct pvr2_hdw *hdw,
223 struct pvr2_i2c_client *cp)
224{
225 struct pvr2_v4l_decoder *ctxt;
226
227 if (hdw->decoder_ctrl) return 0;
228 if (cp->handler) return 0;
229 if (!decoder_detect(cp)) return 0;
230
231 ctxt = kzalloc(sizeof(*ctxt),GFP_KERNEL);
232 if (!ctxt) return 0;
233
234 ctxt->handler.func_data = ctxt;
235 ctxt->handler.func_table = &hfuncs;
236 ctxt->ctrl.ctxt = ctxt;
237 ctxt->ctrl.detach = (void (*)(void *))decoder_detach;
238 ctxt->ctrl.enable = (void (*)(void *,int))decoder_enable;
239 ctxt->client = cp;
240 ctxt->hdw = hdw;
241 ctxt->stale_mask = (1 << ARRAY_SIZE(decoder_ops)) - 1;
242 pvr2_hdw_set_decoder(hdw,&ctxt->ctrl);
243 cp->handler = &ctxt->handler;
244 pvr2_trace(PVR2_TRACE_CHIPS,"i2c 0x%x saa711x V4L2 handler set up",
245 cp->client->addr);
246 return !0;
247}
248
249
250void pvr2_saa7115_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd) 64void pvr2_saa7115_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
251{ 65{
252 if (hdw->input_dirty || hdw->force_dirty) { 66 if (hdw->input_dirty || hdw->force_dirty) {