]>
Commit | Line | Data |
---|---|---|
1c1e45d1 HV |
1 | /* |
2 | * cx18 mailbox functions | |
3 | * | |
4 | * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
19 | * 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #include <stdarg.h> | |
23 | ||
24 | #include "cx18-driver.h" | |
25 | #include "cx18-scb.h" | |
26 | #include "cx18-irq.h" | |
27 | #include "cx18-mailbox.h" | |
28 | ||
29 | #define API_FAST (1 << 2) /* Short timeout */ | |
30 | #define API_SLOW (1 << 3) /* Additional 300ms timeout */ | |
31 | ||
32 | #define APU 0 | |
33 | #define CPU 1 | |
34 | #define EPU 2 | |
35 | #define HPU 3 | |
36 | ||
37 | struct cx18_api_info { | |
38 | u32 cmd; | |
39 | u8 flags; /* Flags, see above */ | |
40 | u8 rpu; /* Processing unit */ | |
41 | const char *name; /* The name of the command */ | |
42 | }; | |
43 | ||
44 | #define API_ENTRY(rpu, x, f) { (x), (f), (rpu), #x } | |
45 | ||
46 | static const struct cx18_api_info api_info[] = { | |
47 | /* MPEG encoder API */ | |
48 | API_ENTRY(CPU, CX18_CPU_SET_CHANNEL_TYPE, 0), | |
49 | API_ENTRY(CPU, CX18_EPU_DEBUG, 0), | |
50 | API_ENTRY(CPU, CX18_CREATE_TASK, 0), | |
51 | API_ENTRY(CPU, CX18_DESTROY_TASK, 0), | |
52 | API_ENTRY(CPU, CX18_CPU_CAPTURE_START, API_SLOW), | |
53 | API_ENTRY(CPU, CX18_CPU_CAPTURE_STOP, API_SLOW), | |
54 | API_ENTRY(CPU, CX18_CPU_CAPTURE_PAUSE, 0), | |
55 | API_ENTRY(CPU, CX18_CPU_CAPTURE_RESUME, 0), | |
56 | API_ENTRY(CPU, CX18_CPU_SET_CHANNEL_TYPE, 0), | |
57 | API_ENTRY(CPU, CX18_CPU_SET_STREAM_OUTPUT_TYPE, 0), | |
58 | API_ENTRY(CPU, CX18_CPU_SET_VIDEO_IN, 0), | |
59 | API_ENTRY(CPU, CX18_CPU_SET_VIDEO_RATE, 0), | |
60 | API_ENTRY(CPU, CX18_CPU_SET_VIDEO_RESOLUTION, 0), | |
61 | API_ENTRY(CPU, CX18_CPU_SET_FILTER_PARAM, 0), | |
62 | API_ENTRY(CPU, CX18_CPU_SET_SPATIAL_FILTER_TYPE, 0), | |
63 | API_ENTRY(CPU, CX18_CPU_SET_MEDIAN_CORING, 0), | |
64 | API_ENTRY(CPU, CX18_CPU_SET_INDEXTABLE, 0), | |
65 | API_ENTRY(CPU, CX18_CPU_SET_AUDIO_PARAMETERS, 0), | |
66 | API_ENTRY(CPU, CX18_CPU_SET_VIDEO_MUTE, 0), | |
67 | API_ENTRY(CPU, CX18_CPU_SET_AUDIO_MUTE, 0), | |
68 | API_ENTRY(CPU, CX18_CPU_SET_MISC_PARAMETERS, 0), | |
69 | API_ENTRY(CPU, CX18_CPU_SET_RAW_VBI_PARAM, API_SLOW), | |
70 | API_ENTRY(CPU, CX18_CPU_SET_CAPTURE_LINE_NO, 0), | |
71 | API_ENTRY(CPU, CX18_CPU_SET_COPYRIGHT, 0), | |
72 | API_ENTRY(CPU, CX18_CPU_SET_AUDIO_PID, 0), | |
73 | API_ENTRY(CPU, CX18_CPU_SET_VIDEO_PID, 0), | |
74 | API_ENTRY(CPU, CX18_CPU_SET_VER_CROP_LINE, 0), | |
75 | API_ENTRY(CPU, CX18_CPU_SET_GOP_STRUCTURE, 0), | |
76 | API_ENTRY(CPU, CX18_CPU_SET_SCENE_CHANGE_DETECTION, 0), | |
77 | API_ENTRY(CPU, CX18_CPU_SET_ASPECT_RATIO, 0), | |
78 | API_ENTRY(CPU, CX18_CPU_SET_SKIP_INPUT_FRAME, 0), | |
79 | API_ENTRY(CPU, CX18_CPU_SET_SLICED_VBI_PARAM, 0), | |
80 | API_ENTRY(CPU, CX18_CPU_SET_USERDATA_PLACE_HOLDER, 0), | |
81 | API_ENTRY(CPU, CX18_CPU_GET_ENC_PTS, 0), | |
82 | API_ENTRY(CPU, CX18_CPU_DE_SET_MDL_ACK, 0), | |
83 | API_ENTRY(CPU, CX18_CPU_DE_SET_MDL, API_FAST), | |
84 | API_ENTRY(0, 0, 0), | |
85 | }; | |
86 | ||
87 | static const struct cx18_api_info *find_api_info(u32 cmd) | |
88 | { | |
89 | int i; | |
90 | ||
91 | for (i = 0; api_info[i].cmd; i++) | |
92 | if (api_info[i].cmd == cmd) | |
93 | return &api_info[i]; | |
94 | return NULL; | |
95 | } | |
96 | ||
990c81c8 | 97 | static struct cx18_mailbox __iomem *cx18_mb_is_complete(struct cx18 *cx, int rpu, |
1c1e45d1 HV |
98 | u32 *state, u32 *irq, u32 *req) |
99 | { | |
990c81c8 | 100 | struct cx18_mailbox __iomem *mb = NULL; |
1c1e45d1 HV |
101 | int wait_count = 0; |
102 | u32 ack; | |
103 | ||
104 | switch (rpu) { | |
105 | case APU: | |
106 | mb = &cx->scb->epu2apu_mb; | |
107 | *state = readl(&cx->scb->apu_state); | |
108 | *irq = readl(&cx->scb->epu2apu_irq); | |
109 | break; | |
110 | ||
111 | case CPU: | |
112 | mb = &cx->scb->epu2cpu_mb; | |
113 | *state = readl(&cx->scb->cpu_state); | |
114 | *irq = readl(&cx->scb->epu2cpu_irq); | |
115 | break; | |
116 | ||
117 | case HPU: | |
118 | mb = &cx->scb->epu2hpu_mb; | |
119 | *state = readl(&cx->scb->hpu_state); | |
120 | *irq = readl(&cx->scb->epu2hpu_irq); | |
121 | break; | |
122 | } | |
123 | ||
124 | if (mb == NULL) | |
125 | return mb; | |
126 | ||
127 | do { | |
128 | *req = readl(&mb->request); | |
129 | ack = readl(&mb->ack); | |
130 | wait_count++; | |
131 | } while (*req != ack && wait_count < 600); | |
132 | ||
133 | if (*req == ack) { | |
134 | (*req)++; | |
135 | if (*req == 0 || *req == 0xffffffff) | |
136 | *req = 1; | |
137 | return mb; | |
138 | } | |
139 | return NULL; | |
140 | } | |
141 | ||
142 | long cx18_mb_ack(struct cx18 *cx, const struct cx18_mailbox *mb) | |
143 | { | |
144 | const struct cx18_api_info *info = find_api_info(mb->cmd); | |
990c81c8 | 145 | struct cx18_mailbox __iomem *ack_mb; |
1c1e45d1 HV |
146 | u32 ack_irq; |
147 | u8 rpu = CPU; | |
148 | ||
149 | if (info == NULL && mb->cmd) { | |
150 | CX18_WARN("Cannot ack unknown command %x\n", mb->cmd); | |
151 | return -EINVAL; | |
152 | } | |
153 | if (info) | |
154 | rpu = info->rpu; | |
155 | ||
156 | switch (rpu) { | |
157 | case HPU: | |
158 | ack_irq = IRQ_EPU_TO_HPU_ACK; | |
159 | ack_mb = &cx->scb->hpu2epu_mb; | |
160 | break; | |
161 | case APU: | |
162 | ack_irq = IRQ_EPU_TO_APU_ACK; | |
163 | ack_mb = &cx->scb->apu2epu_mb; | |
164 | break; | |
165 | case CPU: | |
166 | ack_irq = IRQ_EPU_TO_CPU_ACK; | |
167 | ack_mb = &cx->scb->cpu2epu_mb; | |
168 | break; | |
169 | default: | |
170 | CX18_WARN("Unknown RPU for command %x\n", mb->cmd); | |
171 | return -EINVAL; | |
172 | } | |
173 | ||
174 | setup_page(SCB_OFFSET); | |
175 | write_sync(mb->request, &ack_mb->ack); | |
176 | write_reg(ack_irq, SW2_INT_SET); | |
177 | return 0; | |
178 | } | |
179 | ||
180 | ||
181 | static int cx18_api_call(struct cx18 *cx, u32 cmd, int args, u32 data[]) | |
182 | { | |
183 | const struct cx18_api_info *info = find_api_info(cmd); | |
184 | u32 state = 0, irq = 0, req, oldreq, err; | |
990c81c8 | 185 | struct cx18_mailbox __iomem *mb; |
1c1e45d1 HV |
186 | wait_queue_head_t *waitq; |
187 | int timeout = 100; | |
188 | int cnt = 0; | |
189 | int sig = 0; | |
190 | int i; | |
191 | ||
192 | if (info == NULL) { | |
193 | CX18_WARN("unknown cmd %x\n", cmd); | |
194 | return -EINVAL; | |
195 | } | |
196 | ||
197 | if (cmd == CX18_CPU_DE_SET_MDL) | |
198 | CX18_DEBUG_HI_API("%s\n", info->name); | |
199 | else | |
200 | CX18_DEBUG_API("%s\n", info->name); | |
201 | setup_page(SCB_OFFSET); | |
202 | mb = cx18_mb_is_complete(cx, info->rpu, &state, &irq, &req); | |
203 | ||
204 | if (mb == NULL) { | |
205 | CX18_ERR("mb %s busy\n", info->name); | |
206 | return -EBUSY; | |
207 | } | |
208 | ||
209 | oldreq = req - 1; | |
210 | writel(cmd, &mb->cmd); | |
211 | for (i = 0; i < args; i++) | |
212 | writel(data[i], &mb->args[i]); | |
213 | writel(0, &mb->error); | |
214 | writel(req, &mb->request); | |
215 | ||
216 | switch (info->rpu) { | |
217 | case APU: waitq = &cx->mb_apu_waitq; break; | |
218 | case CPU: waitq = &cx->mb_cpu_waitq; break; | |
219 | case EPU: waitq = &cx->mb_epu_waitq; break; | |
220 | case HPU: waitq = &cx->mb_hpu_waitq; break; | |
221 | default: return -EINVAL; | |
222 | } | |
223 | if (info->flags & API_FAST) | |
224 | timeout /= 2; | |
225 | write_reg(irq, SW1_INT_SET); | |
226 | ||
227 | while (!sig && readl(&mb->ack) != readl(&mb->request) && cnt < 660) { | |
228 | if (cnt > 200 && !in_atomic()) | |
229 | sig = cx18_msleep_timeout(10, 1); | |
230 | cnt++; | |
231 | } | |
232 | if (sig) | |
233 | return -EINTR; | |
234 | if (cnt == 660) { | |
235 | writel(oldreq, &mb->request); | |
236 | CX18_ERR("mb %s failed\n", info->name); | |
237 | return -EINVAL; | |
238 | } | |
239 | for (i = 0; i < MAX_MB_ARGUMENTS; i++) | |
240 | data[i] = readl(&mb->args[i]); | |
241 | err = readl(&mb->error); | |
242 | if (!in_atomic() && (info->flags & API_SLOW)) | |
243 | cx18_msleep_timeout(300, 0); | |
244 | if (err) | |
245 | CX18_DEBUG_API("mailbox error %08x for command %s\n", err, | |
246 | info->name); | |
247 | return err ? -EIO : 0; | |
248 | } | |
249 | ||
250 | int cx18_api(struct cx18 *cx, u32 cmd, int args, u32 data[]) | |
251 | { | |
252 | int res = cx18_api_call(cx, cmd, args, data); | |
253 | ||
254 | /* Allow a single retry, probably already too late though. | |
255 | If there is no free mailbox then that is usually an indication | |
256 | of a more serious problem. */ | |
257 | return (res == -EBUSY) ? cx18_api_call(cx, cmd, args, data) : res; | |
258 | } | |
259 | ||
260 | static int cx18_set_filter_param(struct cx18_stream *s) | |
261 | { | |
262 | struct cx18 *cx = s->cx; | |
263 | u32 mode; | |
264 | int ret; | |
265 | ||
266 | mode = (cx->filter_mode & 1) ? 2 : (cx->spatial_strength ? 1 : 0); | |
267 | ret = cx18_vapi(cx, CX18_CPU_SET_FILTER_PARAM, 4, | |
268 | s->handle, 1, mode, cx->spatial_strength); | |
269 | mode = (cx->filter_mode & 2) ? 2 : (cx->temporal_strength ? 1 : 0); | |
270 | ret = ret ? ret : cx18_vapi(cx, CX18_CPU_SET_FILTER_PARAM, 4, | |
271 | s->handle, 0, mode, cx->temporal_strength); | |
272 | ret = ret ? ret : cx18_vapi(cx, CX18_CPU_SET_FILTER_PARAM, 4, | |
273 | s->handle, 2, cx->filter_mode >> 2, 0); | |
274 | return ret; | |
275 | } | |
276 | ||
277 | int cx18_api_func(void *priv, u32 cmd, int in, int out, | |
278 | u32 data[CX2341X_MBOX_MAX_DATA]) | |
279 | { | |
280 | struct cx18 *cx = priv; | |
281 | struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_MPG]; | |
282 | ||
283 | switch (cmd) { | |
284 | case CX2341X_ENC_SET_OUTPUT_PORT: | |
285 | return 0; | |
286 | case CX2341X_ENC_SET_FRAME_RATE: | |
287 | return cx18_vapi(cx, CX18_CPU_SET_VIDEO_IN, 6, | |
288 | s->handle, 0, 0, 0, 0, data[0]); | |
289 | case CX2341X_ENC_SET_FRAME_SIZE: | |
290 | return cx18_vapi(cx, CX18_CPU_SET_VIDEO_RESOLUTION, 3, | |
291 | s->handle, data[1], data[0]); | |
292 | case CX2341X_ENC_SET_STREAM_TYPE: | |
293 | return cx18_vapi(cx, CX18_CPU_SET_STREAM_OUTPUT_TYPE, 2, | |
294 | s->handle, data[0]); | |
295 | case CX2341X_ENC_SET_ASPECT_RATIO: | |
296 | return cx18_vapi(cx, CX18_CPU_SET_ASPECT_RATIO, 2, | |
297 | s->handle, data[0]); | |
298 | ||
299 | case CX2341X_ENC_SET_GOP_PROPERTIES: | |
300 | return cx18_vapi(cx, CX18_CPU_SET_GOP_STRUCTURE, 3, | |
301 | s->handle, data[0], data[1]); | |
302 | case CX2341X_ENC_SET_GOP_CLOSURE: | |
303 | return 0; | |
304 | case CX2341X_ENC_SET_AUDIO_PROPERTIES: | |
305 | return cx18_vapi(cx, CX18_CPU_SET_AUDIO_PARAMETERS, 2, | |
306 | s->handle, data[0]); | |
307 | case CX2341X_ENC_MUTE_AUDIO: | |
308 | return cx18_vapi(cx, CX18_CPU_SET_AUDIO_MUTE, 2, | |
309 | s->handle, data[0]); | |
310 | case CX2341X_ENC_SET_BIT_RATE: | |
311 | return cx18_vapi(cx, CX18_CPU_SET_VIDEO_RATE, 5, | |
312 | s->handle, data[0], data[1], data[2], data[3]); | |
313 | case CX2341X_ENC_MUTE_VIDEO: | |
314 | return cx18_vapi(cx, CX18_CPU_SET_VIDEO_MUTE, 2, | |
315 | s->handle, data[0]); | |
316 | case CX2341X_ENC_SET_FRAME_DROP_RATE: | |
317 | return cx18_vapi(cx, CX18_CPU_SET_SKIP_INPUT_FRAME, 2, | |
318 | s->handle, data[0]); | |
319 | case CX2341X_ENC_MISC: | |
320 | return cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 4, | |
321 | s->handle, data[0], data[1], data[2]); | |
322 | case CX2341X_ENC_SET_DNR_FILTER_MODE: | |
323 | cx->filter_mode = (data[0] & 3) | (data[1] << 2); | |
324 | return cx18_set_filter_param(s); | |
325 | case CX2341X_ENC_SET_DNR_FILTER_PROPS: | |
326 | cx->spatial_strength = data[0]; | |
327 | cx->temporal_strength = data[1]; | |
328 | return cx18_set_filter_param(s); | |
329 | case CX2341X_ENC_SET_SPATIAL_FILTER_TYPE: | |
330 | return cx18_vapi(cx, CX18_CPU_SET_SPATIAL_FILTER_TYPE, 3, | |
331 | s->handle, data[0], data[1]); | |
332 | case CX2341X_ENC_SET_CORING_LEVELS: | |
333 | return cx18_vapi(cx, CX18_CPU_SET_MEDIAN_CORING, 5, | |
334 | s->handle, data[0], data[1], data[2], data[3]); | |
335 | } | |
336 | CX18_WARN("Unknown cmd %x\n", cmd); | |
337 | return 0; | |
338 | } | |
339 | ||
340 | int cx18_vapi_result(struct cx18 *cx, u32 data[MAX_MB_ARGUMENTS], | |
341 | u32 cmd, int args, ...) | |
342 | { | |
343 | va_list ap; | |
344 | int i; | |
345 | ||
346 | va_start(ap, args); | |
347 | for (i = 0; i < args; i++) | |
348 | data[i] = va_arg(ap, u32); | |
349 | va_end(ap); | |
350 | return cx18_api(cx, cmd, args, data); | |
351 | } | |
352 | ||
353 | int cx18_vapi(struct cx18 *cx, u32 cmd, int args, ...) | |
354 | { | |
355 | u32 data[MAX_MB_ARGUMENTS]; | |
356 | va_list ap; | |
357 | int i; | |
358 | ||
359 | if (cx == NULL) { | |
360 | CX18_ERR("cx == NULL (cmd=%x)\n", cmd); | |
361 | return 0; | |
362 | } | |
363 | if (args > MAX_MB_ARGUMENTS) { | |
364 | CX18_ERR("args too big (cmd=%x)\n", cmd); | |
365 | args = MAX_MB_ARGUMENTS; | |
366 | } | |
367 | va_start(ap, args); | |
368 | for (i = 0; i < args; i++) | |
369 | data[i] = va_arg(ap, u32); | |
370 | va_end(ap); | |
371 | return cx18_api(cx, cmd, args, data); | |
372 | } |