Commit | Line | Data |
---|---|---|
32db7754 HV |
1 | /* |
2 | On Screen Display cx23415 Framebuffer driver | |
3 | ||
4 | This module presents the cx23415 OSD (onscreen display) framebuffer memory | |
5 | as a standard Linux /dev/fb style framebuffer device. The framebuffer has | |
be383bd3 | 6 | support for 8, 16 & 32 bpp packed pixel formats with alpha channel. In 16bpp |
32db7754 HV |
7 | mode, there is a choice of a three color depths (12, 15 or 16 bits), but no |
8 | local alpha. The colorspace is selectable between rgb & yuv. | |
9 | Depending on the TV standard configured in the ivtv module at load time, | |
10 | the initial resolution is either 640x400 (NTSC) or 640x480 (PAL) at 8bpp. | |
11 | Video timings are locked to ensure a vertical refresh rate of 50Hz (PAL) | |
12 | or 59.94 (NTSC) | |
13 | ||
14 | Copyright (c) 2003 Matt T. Yourst <yourst@yourst.com> | |
15 | ||
16 | Derived from drivers/video/vesafb.c | |
17 | Portions (c) 1998 Gerd Knorr <kraxel@goldbach.in-berlin.de> | |
18 | ||
19 | 2.6 kernel port: | |
20 | Copyright (C) 2004 Matthias Badaire | |
21 | ||
22 | Copyright (C) 2004 Chris Kennedy <c@groovy.org> | |
23 | ||
24 | Copyright (C) 2006 Ian Armstrong <ian@iarmst.demon.co.uk> | |
25 | ||
26 | This program is free software; you can redistribute it and/or modify | |
27 | it under the terms of the GNU General Public License as published by | |
28 | the Free Software Foundation; either version 2 of the License, or | |
29 | (at your option) any later version. | |
30 | ||
31 | This program is distributed in the hope that it will be useful, | |
32 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
33 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
34 | GNU General Public License for more details. | |
35 | ||
36 | You should have received a copy of the GNU General Public License | |
37 | along with this program; if not, write to the Free Software | |
38 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
39 | */ | |
40 | ||
41 | #include <linux/module.h> | |
42 | #include <linux/kernel.h> | |
32db7754 | 43 | #include <linux/fb.h> |
0f45b8c5 | 44 | #include <linux/ivtvfb.h> |
32db7754 HV |
45 | |
46 | #ifdef CONFIG_MTRR | |
47 | #include <asm/mtrr.h> | |
48 | #endif | |
49 | ||
50 | #include "ivtv-driver.h" | |
67ec09fd | 51 | #include "ivtv-cards.h" |
4e7ca40d | 52 | #include "ivtv-i2c.h" |
32db7754 | 53 | #include "ivtv-udma.h" |
32db7754 | 54 | #include "ivtv-mailbox.h" |
32db7754 HV |
55 | |
56 | /* card parameters */ | |
641ed49d HV |
57 | static int ivtvfb_card_id = -1; |
58 | static int ivtvfb_debug = 0; | |
32db7754 | 59 | static int osd_laced; |
32db7754 HV |
60 | static int osd_depth; |
61 | static int osd_upper; | |
62 | static int osd_left; | |
63 | static int osd_yres; | |
64 | static int osd_xres; | |
65 | ||
641ed49d HV |
66 | module_param(ivtvfb_card_id, int, 0444); |
67 | module_param_named(debug,ivtvfb_debug, int, 0644); | |
32db7754 | 68 | module_param(osd_laced, bool, 0444); |
32db7754 HV |
69 | module_param(osd_depth, int, 0444); |
70 | module_param(osd_upper, int, 0444); | |
71 | module_param(osd_left, int, 0444); | |
72 | module_param(osd_yres, int, 0444); | |
73 | module_param(osd_xres, int, 0444); | |
74 | ||
641ed49d | 75 | MODULE_PARM_DESC(ivtvfb_card_id, |
32db7754 HV |
76 | "Only use framebuffer of the specified ivtv card (0-31)\n" |
77 | "\t\t\tdefault -1: initialize all available framebuffers"); | |
78 | ||
79 | MODULE_PARM_DESC(debug, | |
80 | "Debug level (bitmask). Default: errors only\n" | |
81 | "\t\t\t(debug = 3 gives full debugging)"); | |
82 | ||
32db7754 HV |
83 | /* Why upper, left, xres, yres, depth, laced ? To match terminology used |
84 | by fbset. | |
85 | Why start at 1 for left & upper coordinate ? Because X doesn't allow 0 */ | |
86 | ||
87 | MODULE_PARM_DESC(osd_laced, | |
88 | "Interlaced mode\n" | |
89 | "\t\t\t0=off\n" | |
90 | "\t\t\t1=on\n" | |
91 | "\t\t\tdefault off"); | |
92 | ||
93 | MODULE_PARM_DESC(osd_depth, | |
be383bd3 | 94 | "Bits per pixel - 8, 16, 32\n" |
32db7754 HV |
95 | "\t\t\tdefault 8"); |
96 | ||
97 | MODULE_PARM_DESC(osd_upper, | |
98 | "Vertical start position\n" | |
99 | "\t\t\tdefault 0 (Centered)"); | |
100 | ||
101 | MODULE_PARM_DESC(osd_left, | |
102 | "Horizontal start position\n" | |
103 | "\t\t\tdefault 0 (Centered)"); | |
104 | ||
105 | MODULE_PARM_DESC(osd_yres, | |
106 | "Display height\n" | |
107 | "\t\t\tdefault 480 (PAL)\n" | |
108 | "\t\t\t 400 (NTSC)"); | |
109 | ||
110 | MODULE_PARM_DESC(osd_xres, | |
111 | "Display width\n" | |
112 | "\t\t\tdefault 640"); | |
113 | ||
114 | MODULE_AUTHOR("Kevin Thayer, Chris Kennedy, Hans Verkuil, John Harvey, Ian Armstrong"); | |
115 | MODULE_LICENSE("GPL"); | |
116 | ||
117 | /* --------------------------------------------------------------------- */ | |
118 | ||
641ed49d HV |
119 | #define IVTVFB_DBGFLG_WARN (1 << 0) |
120 | #define IVTVFB_DBGFLG_INFO (1 << 1) | |
32db7754 | 121 | |
641ed49d | 122 | #define IVTVFB_DEBUG(x, type, fmt, args...) \ |
32db7754 | 123 | do { \ |
641ed49d | 124 | if ((x) & ivtvfb_debug) \ |
67ec09fd | 125 | printk(KERN_INFO "ivtvfb%d " type ": " fmt, itv->instance , ## args); \ |
32db7754 | 126 | } while (0) |
641ed49d HV |
127 | #define IVTVFB_DEBUG_WARN(fmt, args...) IVTVFB_DEBUG(IVTVFB_DBGFLG_WARN, "warning", fmt , ## args) |
128 | #define IVTVFB_DEBUG_INFO(fmt, args...) IVTVFB_DEBUG(IVTVFB_DBGFLG_INFO, "info", fmt , ## args) | |
32db7754 HV |
129 | |
130 | /* Standard kernel messages */ | |
67ec09fd HV |
131 | #define IVTVFB_ERR(fmt, args...) printk(KERN_ERR "ivtvfb%d: " fmt, itv->instance , ## args) |
132 | #define IVTVFB_WARN(fmt, args...) printk(KERN_WARNING "ivtvfb%d: " fmt, itv->instance , ## args) | |
133 | #define IVTVFB_INFO(fmt, args...) printk(KERN_INFO "ivtvfb%d: " fmt, itv->instance , ## args) | |
32db7754 HV |
134 | |
135 | /* --------------------------------------------------------------------- */ | |
136 | ||
137 | #define IVTV_OSD_MAX_WIDTH 720 | |
138 | #define IVTV_OSD_MAX_HEIGHT 576 | |
139 | ||
140 | #define IVTV_OSD_BPP_8 0x00 | |
141 | #define IVTV_OSD_BPP_16_444 0x03 | |
142 | #define IVTV_OSD_BPP_16_555 0x02 | |
143 | #define IVTV_OSD_BPP_16_565 0x01 | |
144 | #define IVTV_OSD_BPP_32 0x04 | |
145 | ||
146 | struct osd_info { | |
32db7754 HV |
147 | /* Physical base address */ |
148 | unsigned long video_pbase; | |
149 | /* Relative base address (relative to start of decoder memory) */ | |
150 | u32 video_rbase; | |
151 | /* Mapped base address */ | |
152 | volatile char __iomem *video_vbase; | |
153 | /* Buffer size */ | |
154 | u32 video_buffer_size; | |
155 | ||
156 | #ifdef CONFIG_MTRR | |
157 | /* video_base rounded down as required by hardware MTRRs */ | |
158 | unsigned long fb_start_aligned_physaddr; | |
159 | /* video_base rounded up as required by hardware MTRRs */ | |
160 | unsigned long fb_end_aligned_physaddr; | |
161 | #endif | |
162 | ||
163 | /* Store the buffer offset */ | |
164 | int set_osd_coords_x; | |
165 | int set_osd_coords_y; | |
166 | ||
167 | /* Current dimensions (NOT VISIBLE SIZE!) */ | |
168 | int display_width; | |
169 | int display_height; | |
170 | int display_byte_stride; | |
171 | ||
172 | /* Current bits per pixel */ | |
173 | int bits_per_pixel; | |
174 | int bytes_per_pixel; | |
175 | ||
176 | /* Frame buffer stuff */ | |
177 | struct fb_info ivtvfb_info; | |
178 | struct fb_var_screeninfo ivtvfb_defined; | |
179 | struct fb_fix_screeninfo ivtvfb_fix; | |
180 | }; | |
181 | ||
182 | struct ivtv_osd_coords { | |
183 | unsigned long offset; | |
184 | unsigned long max_offset; | |
185 | int pixel_stride; | |
186 | int lines; | |
187 | int x; | |
188 | int y; | |
189 | }; | |
190 | ||
191 | /* --------------------------------------------------------------------- */ | |
192 | ||
193 | /* ivtv API calls for framebuffer related support */ | |
194 | ||
641ed49d | 195 | static int ivtvfb_get_framebuffer(struct ivtv *itv, u32 *fbbase, |
32db7754 HV |
196 | u32 *fblength) |
197 | { | |
198 | u32 data[CX2341X_MBOX_MAX_DATA]; | |
199 | int rc; | |
200 | ||
201 | rc = ivtv_vapi_result(itv, data, CX2341X_OSD_GET_FRAMEBUFFER, 0); | |
202 | *fbbase = data[0]; | |
203 | *fblength = data[1]; | |
204 | return rc; | |
205 | } | |
206 | ||
641ed49d | 207 | static int ivtvfb_get_osd_coords(struct ivtv *itv, |
32db7754 HV |
208 | struct ivtv_osd_coords *osd) |
209 | { | |
be383bd3 | 210 | struct osd_info *oi = itv->osd_info; |
32db7754 HV |
211 | u32 data[CX2341X_MBOX_MAX_DATA]; |
212 | ||
213 | ivtv_vapi_result(itv, data, CX2341X_OSD_GET_OSD_COORDS, 0); | |
214 | ||
be383bd3 HV |
215 | osd->offset = data[0] - oi->video_rbase; |
216 | osd->max_offset = oi->display_width * oi->display_height * 4; | |
32db7754 HV |
217 | osd->pixel_stride = data[1]; |
218 | osd->lines = data[2]; | |
219 | osd->x = data[3]; | |
220 | osd->y = data[4]; | |
221 | return 0; | |
222 | } | |
223 | ||
641ed49d | 224 | static int ivtvfb_set_osd_coords(struct ivtv *itv, const struct ivtv_osd_coords *osd) |
32db7754 | 225 | { |
be383bd3 HV |
226 | struct osd_info *oi = itv->osd_info; |
227 | ||
228 | oi->display_width = osd->pixel_stride; | |
229 | oi->display_byte_stride = osd->pixel_stride * oi->bytes_per_pixel; | |
230 | oi->set_osd_coords_x += osd->x; | |
231 | oi->set_osd_coords_y = osd->y; | |
32db7754 HV |
232 | |
233 | return ivtv_vapi(itv, CX2341X_OSD_SET_OSD_COORDS, 5, | |
be383bd3 | 234 | osd->offset + oi->video_rbase, |
32db7754 HV |
235 | osd->pixel_stride, |
236 | osd->lines, osd->x, osd->y); | |
237 | } | |
238 | ||
641ed49d | 239 | static int ivtvfb_set_display_window(struct ivtv *itv, struct v4l2_rect *ivtv_window) |
32db7754 | 240 | { |
32db7754 HV |
241 | int osd_height_limit = itv->is_50hz ? 576 : 480; |
242 | ||
243 | /* Only fail if resolution too high, otherwise fudge the start coords. */ | |
244 | if ((ivtv_window->height > osd_height_limit) || (ivtv_window->width > IVTV_OSD_MAX_WIDTH)) | |
245 | return -EINVAL; | |
246 | ||
247 | /* Ensure we don't exceed display limits */ | |
248 | if (ivtv_window->top + ivtv_window->height > osd_height_limit) { | |
641ed49d | 249 | IVTVFB_DEBUG_WARN("ivtv_ioctl_fb_set_display_window - Invalid height setting (%d, %d)\n", |
32db7754 HV |
250 | ivtv_window->top, ivtv_window->height); |
251 | ivtv_window->top = osd_height_limit - ivtv_window->height; | |
252 | } | |
253 | ||
254 | if (ivtv_window->left + ivtv_window->width > IVTV_OSD_MAX_WIDTH) { | |
641ed49d | 255 | IVTVFB_DEBUG_WARN("ivtv_ioctl_fb_set_display_window - Invalid width setting (%d, %d)\n", |
32db7754 HV |
256 | ivtv_window->left, ivtv_window->width); |
257 | ivtv_window->left = IVTV_OSD_MAX_WIDTH - ivtv_window->width; | |
258 | } | |
259 | ||
260 | /* Set the OSD origin */ | |
261 | write_reg((ivtv_window->top << 16) | ivtv_window->left, 0x02a04); | |
262 | ||
263 | /* How much to display */ | |
264 | write_reg(((ivtv_window->top+ivtv_window->height) << 16) | (ivtv_window->left+ivtv_window->width), 0x02a08); | |
265 | ||
266 | /* Pass this info back the yuv handler */ | |
267 | itv->yuv_info.osd_vis_w = ivtv_window->width; | |
268 | itv->yuv_info.osd_vis_h = ivtv_window->height; | |
269 | itv->yuv_info.osd_x_offset = ivtv_window->left; | |
270 | itv->yuv_info.osd_y_offset = ivtv_window->top; | |
271 | ||
272 | return 0; | |
273 | } | |
274 | ||
641ed49d | 275 | static int ivtvfb_prep_dec_dma_to_device(struct ivtv *itv, |
32db7754 HV |
276 | unsigned long ivtv_dest_addr, void __user *userbuf, |
277 | int size_in_bytes) | |
278 | { | |
279 | DEFINE_WAIT(wait); | |
32db7754 HV |
280 | int got_sig = 0; |
281 | ||
282 | mutex_lock(&itv->udma.lock); | |
283 | /* Map User DMA */ | |
284 | if (ivtv_udma_setup(itv, ivtv_dest_addr, userbuf, size_in_bytes) <= 0) { | |
285 | mutex_unlock(&itv->udma.lock); | |
641ed49d | 286 | IVTVFB_WARN("ivtvfb_prep_dec_dma_to_device, " |
32db7754 HV |
287 | "Error with get_user_pages: %d bytes, %d pages returned\n", |
288 | size_in_bytes, itv->udma.page_count); | |
289 | ||
290 | /* get_user_pages must have failed completely */ | |
291 | return -EIO; | |
292 | } | |
293 | ||
641ed49d | 294 | IVTVFB_DEBUG_INFO("ivtvfb_prep_dec_dma_to_device, %d bytes, %d pages\n", |
32db7754 HV |
295 | size_in_bytes, itv->udma.page_count); |
296 | ||
297 | ivtv_udma_prepare(itv); | |
298 | prepare_to_wait(&itv->dma_waitq, &wait, TASK_INTERRUPTIBLE); | |
299 | /* if no UDMA is pending and no UDMA is in progress, then the DMA | |
300 | is finished */ | |
ec105a42 HV |
301 | while (test_bit(IVTV_F_I_UDMA_PENDING, &itv->i_flags) || |
302 | test_bit(IVTV_F_I_UDMA, &itv->i_flags)) { | |
32db7754 HV |
303 | /* don't interrupt if the DMA is in progress but break off |
304 | a still pending DMA. */ | |
305 | got_sig = signal_pending(current); | |
306 | if (got_sig && test_and_clear_bit(IVTV_F_I_UDMA_PENDING, &itv->i_flags)) | |
307 | break; | |
308 | got_sig = 0; | |
309 | schedule(); | |
310 | } | |
311 | finish_wait(&itv->dma_waitq, &wait); | |
312 | ||
313 | /* Unmap Last DMA Xfer */ | |
314 | ivtv_udma_unmap(itv); | |
315 | mutex_unlock(&itv->udma.lock); | |
316 | if (got_sig) { | |
317 | IVTV_DEBUG_INFO("User stopped OSD\n"); | |
318 | return -EINTR; | |
319 | } | |
320 | ||
c777549f | 321 | return 0; |
32db7754 HV |
322 | } |
323 | ||
641ed49d | 324 | static int ivtvfb_prep_frame(struct ivtv *itv, int cmd, void __user *source, |
be383bd3 | 325 | unsigned long dest_offset, int count) |
32db7754 HV |
326 | { |
327 | DEFINE_WAIT(wait); | |
aaf9fa21 | 328 | struct osd_info *oi = itv->osd_info; |
32db7754 HV |
329 | |
330 | /* Nothing to do */ | |
331 | if (count == 0) { | |
641ed49d | 332 | IVTVFB_DEBUG_WARN("ivtvfb_prep_frame: Nothing to do. count = 0\n"); |
32db7754 HV |
333 | return -EINVAL; |
334 | } | |
335 | ||
336 | /* Check Total FB Size */ | |
aaf9fa21 | 337 | if ((dest_offset + count) > oi->video_buffer_size) { |
641ed49d | 338 | IVTVFB_WARN("ivtvfb_prep_frame: Overflowing the framebuffer %ld, only %d available\n", |
aaf9fa21 | 339 | dest_offset + count, oi->video_buffer_size); |
32db7754 HV |
340 | return -E2BIG; |
341 | } | |
342 | ||
343 | /* Not fatal, but will have undesirable results */ | |
344 | if ((unsigned long)source & 3) | |
641ed49d | 345 | IVTVFB_WARN("ivtvfb_prep_frame: Source address not 32 bit aligned (0x%08lx)\n", |
be383bd3 | 346 | (unsigned long)source); |
32db7754 HV |
347 | |
348 | if (dest_offset & 3) | |
641ed49d | 349 | IVTVFB_WARN("ivtvfb_prep_frame: Dest offset not 32 bit aligned (%ld)\n", dest_offset); |
32db7754 HV |
350 | |
351 | if (count & 3) | |
641ed49d | 352 | IVTVFB_WARN("ivtvfb_prep_frame: Count not a multiple of 4 (%d)\n", count); |
32db7754 HV |
353 | |
354 | /* Check Source */ | |
355 | if (!access_ok(VERIFY_READ, source + dest_offset, count)) { | |
641ed49d | 356 | IVTVFB_WARN("Invalid userspace pointer 0x%08lx\n", |
32db7754 HV |
357 | (unsigned long)source); |
358 | ||
641ed49d | 359 | IVTVFB_DEBUG_WARN("access_ok() failed for offset 0x%08lx source 0x%08lx count %d\n", |
32db7754 HV |
360 | dest_offset, (unsigned long)source, |
361 | count); | |
362 | return -EINVAL; | |
363 | } | |
364 | ||
365 | /* OSD Address to send DMA to */ | |
33c0fcad | 366 | dest_offset += IVTV_DECODER_OFFSET + oi->video_rbase; |
32db7754 HV |
367 | |
368 | /* Fill Buffers */ | |
641ed49d | 369 | return ivtvfb_prep_dec_dma_to_device(itv, dest_offset, source, count); |
32db7754 HV |
370 | } |
371 | ||
4cbeb371 | 372 | static ssize_t ivtvfb_write(struct fb_info *info, const char __user *buf, |
4ee0e42b | 373 | size_t count, loff_t *ppos) |
4cbeb371 IA |
374 | { |
375 | unsigned long p = *ppos; | |
376 | void *dst; | |
377 | int err = 0; | |
c777549f | 378 | int dma_err; |
4cbeb371 IA |
379 | unsigned long total_size; |
380 | struct ivtv *itv = (struct ivtv *) info->par; | |
381 | unsigned long dma_offset = | |
382 | IVTV_DECODER_OFFSET + itv->osd_info->video_rbase; | |
383 | unsigned long dma_size; | |
384 | u16 lead = 0, tail = 0; | |
385 | ||
386 | if (info->state != FBINFO_STATE_RUNNING) | |
387 | return -EPERM; | |
388 | ||
389 | total_size = info->screen_size; | |
390 | ||
391 | if (total_size == 0) | |
392 | total_size = info->fix.smem_len; | |
393 | ||
394 | if (p > total_size) | |
395 | return -EFBIG; | |
396 | ||
397 | if (count > total_size) { | |
398 | err = -EFBIG; | |
399 | count = total_size; | |
400 | } | |
401 | ||
402 | if (count + p > total_size) { | |
403 | if (!err) | |
404 | err = -ENOSPC; | |
4cbeb371 IA |
405 | count = total_size - p; |
406 | } | |
407 | ||
408 | dst = (void __force *) (info->screen_base + p); | |
409 | ||
410 | if (info->fbops->fb_sync) | |
411 | info->fbops->fb_sync(info); | |
412 | ||
c777549f IA |
413 | /* If transfer size > threshold and both src/dst |
414 | addresses are aligned, use DMA */ | |
415 | if (count >= 4096 && | |
416 | ((unsigned long)buf & 3) == ((unsigned long)dst & 3)) { | |
417 | /* Odd address = can't DMA. Align */ | |
418 | if ((unsigned long)dst & 3) { | |
419 | lead = 4 - ((unsigned long)dst & 3); | |
420 | if (copy_from_user(dst, buf, lead)) | |
421 | return -EFAULT; | |
422 | buf += lead; | |
423 | dst += lead; | |
4cbeb371 | 424 | } |
c777549f IA |
425 | /* DMA resolution is 32 bits */ |
426 | if ((count - lead) & 3) | |
427 | tail = (count - lead) & 3; | |
428 | /* DMA the data */ | |
429 | dma_size = count - lead - tail; | |
430 | dma_err = ivtvfb_prep_dec_dma_to_device(itv, | |
431 | p + lead + dma_offset, (void __user *)buf, dma_size); | |
432 | if (dma_err) | |
433 | return dma_err; | |
434 | dst += dma_size; | |
435 | buf += dma_size; | |
436 | /* Copy any leftover data */ | |
437 | if (tail && copy_from_user(dst, buf, tail)) | |
438 | return -EFAULT; | |
439 | } else if (copy_from_user(dst, buf, count)) { | |
440 | return -EFAULT; | |
4cbeb371 IA |
441 | } |
442 | ||
443 | if (!err) | |
444 | *ppos += count; | |
445 | ||
446 | return (err) ? err : count; | |
447 | } | |
448 | ||
32db7754 HV |
449 | static int ivtvfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) |
450 | { | |
451 | DEFINE_WAIT(wait); | |
452 | struct ivtv *itv = (struct ivtv *)info->par; | |
be383bd3 | 453 | int rc = 0; |
32db7754 HV |
454 | |
455 | switch (cmd) { | |
32db7754 HV |
456 | case FBIOGET_VBLANK: { |
457 | struct fb_vblank vblank; | |
458 | u32 trace; | |
459 | ||
460 | vblank.flags = FB_VBLANK_HAVE_COUNT |FB_VBLANK_HAVE_VCOUNT | | |
461 | FB_VBLANK_HAVE_VSYNC; | |
be383bd3 | 462 | trace = read_reg(0x028c0) >> 16; |
c777549f IA |
463 | if (itv->is_50hz && trace > 312) |
464 | trace -= 312; | |
465 | else if (itv->is_60hz && trace > 262) | |
466 | trace -= 262; | |
467 | if (trace == 1) | |
468 | vblank.flags |= FB_VBLANK_VSYNCING; | |
a158f355 | 469 | vblank.count = itv->last_vsync_field; |
32db7754 HV |
470 | vblank.vcount = trace; |
471 | vblank.hcount = 0; | |
472 | if (copy_to_user((void __user *)arg, &vblank, sizeof(vblank))) | |
473 | return -EFAULT; | |
474 | return 0; | |
475 | } | |
476 | ||
be383bd3 | 477 | case FBIO_WAITFORVSYNC: |
32db7754 | 478 | prepare_to_wait(&itv->vsync_waitq, &wait, TASK_INTERRUPTIBLE); |
c777549f IA |
479 | if (!schedule_timeout(msecs_to_jiffies(50))) |
480 | rc = -ETIMEDOUT; | |
be383bd3 | 481 | finish_wait(&itv->vsync_waitq, &wait); |
32db7754 | 482 | return rc; |
32db7754 | 483 | |
d715e766 HV |
484 | case IVTVFB_IOC_DMA_FRAME: { |
485 | struct ivtvfb_dma_frame args; | |
32db7754 | 486 | |
641ed49d | 487 | IVTVFB_DEBUG_INFO("IVTVFB_IOC_DMA_FRAME\n"); |
32db7754 HV |
488 | if (copy_from_user(&args, (void __user *)arg, sizeof(args))) |
489 | return -EFAULT; | |
490 | ||
641ed49d | 491 | return ivtvfb_prep_frame(itv, cmd, args.source, args.dest_offset, args.count); |
32db7754 HV |
492 | } |
493 | ||
494 | default: | |
641ed49d | 495 | IVTVFB_DEBUG_INFO("Unknown ioctl %08x\n", cmd); |
32db7754 HV |
496 | return -EINVAL; |
497 | } | |
498 | return 0; | |
499 | } | |
500 | ||
501 | /* Framebuffer device handling */ | |
502 | ||
503 | static int ivtvfb_set_var(struct ivtv *itv, struct fb_var_screeninfo *var) | |
504 | { | |
aaf9fa21 | 505 | struct osd_info *oi = itv->osd_info; |
32db7754 HV |
506 | struct ivtv_osd_coords ivtv_osd; |
507 | struct v4l2_rect ivtv_window; | |
aaf9fa21 | 508 | int osd_mode = -1; |
32db7754 | 509 | |
641ed49d | 510 | IVTVFB_DEBUG_INFO("ivtvfb_set_var\n"); |
32db7754 HV |
511 | |
512 | /* Select color space */ | |
513 | if (var->nonstd) /* YUV */ | |
be383bd3 | 514 | write_reg(read_reg(0x02a00) | 0x0002000, 0x02a00); |
32db7754 | 515 | else /* RGB */ |
be383bd3 | 516 | write_reg(read_reg(0x02a00) & ~0x0002000, 0x02a00); |
32db7754 | 517 | |
aaf9fa21 | 518 | /* Set the color mode */ |
32db7754 HV |
519 | switch (var->bits_per_pixel) { |
520 | case 8: | |
aaf9fa21 | 521 | osd_mode = IVTV_OSD_BPP_8; |
32db7754 HV |
522 | break; |
523 | case 32: | |
aaf9fa21 | 524 | osd_mode = IVTV_OSD_BPP_32; |
32db7754 HV |
525 | break; |
526 | case 16: | |
527 | switch (var->green.length) { | |
528 | case 4: | |
aaf9fa21 | 529 | osd_mode = IVTV_OSD_BPP_16_444; |
32db7754 HV |
530 | break; |
531 | case 5: | |
aaf9fa21 | 532 | osd_mode = IVTV_OSD_BPP_16_555; |
32db7754 HV |
533 | break; |
534 | case 6: | |
aaf9fa21 | 535 | osd_mode = IVTV_OSD_BPP_16_565; |
32db7754 HV |
536 | break; |
537 | default: | |
641ed49d | 538 | IVTVFB_DEBUG_WARN("ivtvfb_set_var - Invalid bpp\n"); |
32db7754 HV |
539 | } |
540 | break; | |
541 | default: | |
641ed49d | 542 | IVTVFB_DEBUG_WARN("ivtvfb_set_var - Invalid bpp\n"); |
32db7754 HV |
543 | } |
544 | ||
6659e3ed IA |
545 | /* Set video mode. Although rare, the display can become scrambled even |
546 | if we don't change mode. Always 'bounce' to osd_mode via mode 0 */ | |
547 | if (osd_mode != -1) { | |
aaf9fa21 IA |
548 | ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, 0); |
549 | ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, osd_mode); | |
aaf9fa21 IA |
550 | } |
551 | ||
552 | oi->bits_per_pixel = var->bits_per_pixel; | |
553 | oi->bytes_per_pixel = var->bits_per_pixel / 8; | |
32db7754 HV |
554 | |
555 | /* Set the flicker filter */ | |
556 | switch (var->vmode & FB_VMODE_MASK) { | |
557 | case FB_VMODE_NONINTERLACED: /* Filter on */ | |
558 | ivtv_vapi(itv, CX2341X_OSD_SET_FLICKER_STATE, 1, 1); | |
559 | break; | |
560 | case FB_VMODE_INTERLACED: /* Filter off */ | |
561 | ivtv_vapi(itv, CX2341X_OSD_SET_FLICKER_STATE, 1, 0); | |
562 | break; | |
563 | default: | |
641ed49d | 564 | IVTVFB_DEBUG_WARN("ivtvfb_set_var - Invalid video mode\n"); |
32db7754 HV |
565 | } |
566 | ||
567 | /* Read the current osd info */ | |
641ed49d | 568 | ivtvfb_get_osd_coords(itv, &ivtv_osd); |
32db7754 HV |
569 | |
570 | /* Now set the OSD to the size we want */ | |
571 | ivtv_osd.pixel_stride = var->xres_virtual; | |
572 | ivtv_osd.lines = var->yres_virtual; | |
573 | ivtv_osd.x = 0; | |
574 | ivtv_osd.y = 0; | |
641ed49d | 575 | ivtvfb_set_osd_coords(itv, &ivtv_osd); |
32db7754 HV |
576 | |
577 | /* Can't seem to find the right API combo for this. | |
578 | Use another function which does what we need through direct register access. */ | |
579 | ivtv_window.width = var->xres; | |
580 | ivtv_window.height = var->yres; | |
581 | ||
582 | /* Minimum margin cannot be 0, as X won't allow such a mode */ | |
be383bd3 HV |
583 | if (!var->upper_margin) var->upper_margin++; |
584 | if (!var->left_margin) var->left_margin++; | |
32db7754 HV |
585 | ivtv_window.top = var->upper_margin - 1; |
586 | ivtv_window.left = var->left_margin - 1; | |
587 | ||
641ed49d | 588 | ivtvfb_set_display_window(itv, &ivtv_window); |
32db7754 | 589 | |
77aded6b IA |
590 | /* Pass screen size back to yuv handler */ |
591 | itv->yuv_info.osd_full_w = ivtv_osd.pixel_stride; | |
592 | itv->yuv_info.osd_full_h = ivtv_osd.lines; | |
593 | ||
32db7754 HV |
594 | /* Force update of yuv registers */ |
595 | itv->yuv_info.yuv_forced_update = 1; | |
596 | ||
641ed49d | 597 | IVTVFB_DEBUG_INFO("Display size: %dx%d (virtual %dx%d) @ %dbpp\n", |
be383bd3 HV |
598 | var->xres, var->yres, |
599 | var->xres_virtual, var->yres_virtual, | |
600 | var->bits_per_pixel); | |
32db7754 | 601 | |
641ed49d | 602 | IVTVFB_DEBUG_INFO("Display position: %d, %d\n", |
be383bd3 | 603 | var->left_margin, var->upper_margin); |
32db7754 | 604 | |
641ed49d | 605 | IVTVFB_DEBUG_INFO("Display filter: %s\n", |
be383bd3 | 606 | (var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED ? "on" : "off"); |
641ed49d | 607 | IVTVFB_DEBUG_INFO("Color space: %s\n", var->nonstd ? "YUV" : "RGB"); |
32db7754 HV |
608 | |
609 | return 0; | |
610 | } | |
611 | ||
612 | static int ivtvfb_get_fix(struct ivtv *itv, struct fb_fix_screeninfo *fix) | |
613 | { | |
be383bd3 HV |
614 | struct osd_info *oi = itv->osd_info; |
615 | ||
641ed49d | 616 | IVTVFB_DEBUG_INFO("ivtvfb_get_fix\n"); |
32db7754 | 617 | memset(fix, 0, sizeof(struct fb_fix_screeninfo)); |
cebfadff | 618 | strlcpy(fix->id, "cx23415 TV out", sizeof(fix->id)); |
be383bd3 HV |
619 | fix->smem_start = oi->video_pbase; |
620 | fix->smem_len = oi->video_buffer_size; | |
32db7754 | 621 | fix->type = FB_TYPE_PACKED_PIXELS; |
be383bd3 | 622 | fix->visual = (oi->bits_per_pixel == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR; |
32db7754 HV |
623 | fix->xpanstep = 1; |
624 | fix->ypanstep = 1; | |
625 | fix->ywrapstep = 0; | |
be383bd3 | 626 | fix->line_length = oi->display_byte_stride; |
32db7754 HV |
627 | fix->accel = FB_ACCEL_NONE; |
628 | return 0; | |
629 | } | |
630 | ||
631 | /* Check the requested display mode, returning -EINVAL if we can't | |
632 | handle it. */ | |
633 | ||
634 | static int _ivtvfb_check_var(struct fb_var_screeninfo *var, struct ivtv *itv) | |
635 | { | |
be383bd3 | 636 | struct osd_info *oi = itv->osd_info; |
68a341a5 IA |
637 | int osd_height_limit; |
638 | u32 pixclock, hlimit, vlimit; | |
32db7754 | 639 | |
641ed49d | 640 | IVTVFB_DEBUG_INFO("ivtvfb_check_var\n"); |
32db7754 | 641 | |
68a341a5 IA |
642 | /* Set base references for mode calcs. */ |
643 | if (itv->is_50hz) { | |
644 | pixclock = 84316; | |
645 | hlimit = 776; | |
646 | vlimit = 591; | |
647 | osd_height_limit = 576; | |
648 | } | |
649 | else { | |
650 | pixclock = 83926; | |
651 | hlimit = 776; | |
652 | vlimit = 495; | |
653 | osd_height_limit = 480; | |
654 | } | |
655 | ||
32db7754 HV |
656 | if (var->bits_per_pixel == 8 || var->bits_per_pixel == 32) { |
657 | var->transp.offset = 24; | |
658 | var->transp.length = 8; | |
659 | var->red.offset = 16; | |
660 | var->red.length = 8; | |
661 | var->green.offset = 8; | |
662 | var->green.length = 8; | |
663 | var->blue.offset = 0; | |
664 | var->blue.length = 8; | |
665 | } | |
666 | else if (var->bits_per_pixel == 16) { | |
667 | /* To find out the true mode, check green length */ | |
668 | switch (var->green.length) { | |
669 | case 4: | |
32db7754 HV |
670 | var->red.offset = 8; |
671 | var->red.length = 4; | |
672 | var->green.offset = 4; | |
673 | var->green.length = 4; | |
674 | var->blue.offset = 0; | |
675 | var->blue.length = 4; | |
459a52fa HV |
676 | var->transp.offset = 12; |
677 | var->transp.length = 1; | |
32db7754 HV |
678 | break; |
679 | case 5: | |
32db7754 HV |
680 | var->red.offset = 10; |
681 | var->red.length = 5; | |
682 | var->green.offset = 5; | |
683 | var->green.length = 5; | |
684 | var->blue.offset = 0; | |
685 | var->blue.length = 5; | |
459a52fa HV |
686 | var->transp.offset = 15; |
687 | var->transp.length = 1; | |
32db7754 HV |
688 | break; |
689 | default: | |
32db7754 HV |
690 | var->red.offset = 11; |
691 | var->red.length = 5; | |
692 | var->green.offset = 5; | |
693 | var->green.length = 6; | |
694 | var->blue.offset = 0; | |
695 | var->blue.length = 5; | |
459a52fa HV |
696 | var->transp.offset = 0; |
697 | var->transp.length = 0; | |
32db7754 HV |
698 | break; |
699 | } | |
700 | } | |
701 | else { | |
641ed49d | 702 | IVTVFB_DEBUG_WARN("Invalid colour mode: %d\n", var->bits_per_pixel); |
32db7754 HV |
703 | return -EINVAL; |
704 | } | |
705 | ||
706 | /* Check the resolution */ | |
6b1ec9da IA |
707 | if (var->xres > IVTV_OSD_MAX_WIDTH || var->yres > osd_height_limit) { |
708 | IVTVFB_DEBUG_WARN("Invalid resolution: %dx%d\n", | |
709 | var->xres, var->yres); | |
710 | return -EINVAL; | |
32db7754 | 711 | } |
32db7754 | 712 | |
6b1ec9da IA |
713 | /* Max horizontal size is 1023 @ 32bpp, 2046 & 16bpp, 4092 @ 8bpp */ |
714 | if (var->xres_virtual > 4095 / (var->bits_per_pixel / 8) || | |
715 | var->xres_virtual * var->yres_virtual * (var->bits_per_pixel / 8) > oi->video_buffer_size || | |
716 | var->xres_virtual < var->xres || | |
717 | var->yres_virtual < var->yres) { | |
718 | IVTVFB_DEBUG_WARN("Invalid virtual resolution: %dx%d\n", | |
719 | var->xres_virtual, var->yres_virtual); | |
720 | return -EINVAL; | |
32db7754 HV |
721 | } |
722 | ||
723 | /* Some extra checks if in 8 bit mode */ | |
724 | if (var->bits_per_pixel == 8) { | |
725 | /* Width must be a multiple of 4 */ | |
726 | if (var->xres & 3) { | |
641ed49d | 727 | IVTVFB_DEBUG_WARN("Invalid resolution for 8bpp: %d\n", var->xres); |
32db7754 HV |
728 | return -EINVAL; |
729 | } | |
730 | if (var->xres_virtual & 3) { | |
641ed49d | 731 | IVTVFB_DEBUG_WARN("Invalid virtual resolution for 8bpp: %d)\n", var->xres_virtual); |
32db7754 HV |
732 | return -EINVAL; |
733 | } | |
734 | } | |
735 | else if (var->bits_per_pixel == 16) { | |
736 | /* Width must be a multiple of 2 */ | |
737 | if (var->xres & 1) { | |
641ed49d | 738 | IVTVFB_DEBUG_WARN("Invalid resolution for 16bpp: %d\n", var->xres); |
32db7754 HV |
739 | return -EINVAL; |
740 | } | |
741 | if (var->xres_virtual & 1) { | |
641ed49d | 742 | IVTVFB_DEBUG_WARN("Invalid virtual resolution for 16bpp: %d)\n", var->xres_virtual); |
32db7754 HV |
743 | return -EINVAL; |
744 | } | |
745 | } | |
746 | ||
747 | /* Now check the offsets */ | |
748 | if (var->xoffset >= var->xres_virtual || var->yoffset >= var->yres_virtual) { | |
641ed49d | 749 | IVTVFB_DEBUG_WARN("Invalid offset: %d (%d) %d (%d)\n", |
be383bd3 | 750 | var->xoffset, var->xres_virtual, var->yoffset, var->yres_virtual); |
32db7754 HV |
751 | return -EINVAL; |
752 | } | |
753 | ||
754 | /* Check pixel format */ | |
755 | if (var->nonstd > 1) { | |
641ed49d | 756 | IVTVFB_DEBUG_WARN("Invalid nonstd % d\n", var->nonstd); |
32db7754 HV |
757 | return -EINVAL; |
758 | } | |
759 | ||
760 | /* Check video mode */ | |
761 | if (((var->vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED) && | |
762 | ((var->vmode & FB_VMODE_MASK) != FB_VMODE_INTERLACED)) { | |
641ed49d | 763 | IVTVFB_DEBUG_WARN("Invalid video mode: %d\n", var->vmode & FB_VMODE_MASK); |
32db7754 HV |
764 | return -EINVAL; |
765 | } | |
766 | ||
767 | /* Check the left & upper margins | |
768 | If the margins are too large, just center the screen | |
769 | (enforcing margins causes too many problems) */ | |
770 | ||
771 | if (var->left_margin + var->xres > IVTV_OSD_MAX_WIDTH + 1) { | |
772 | var->left_margin = 1 + ((IVTV_OSD_MAX_WIDTH - var->xres) / 2); | |
773 | } | |
774 | if (var->upper_margin + var->yres > (itv->is_50hz ? 577 : 481)) { | |
775 | var->upper_margin = 1 + (((itv->is_50hz ? 576 : 480) - var->yres) / 2); | |
776 | } | |
777 | ||
778 | /* Maintain overall 'size' for a constant refresh rate */ | |
68a341a5 IA |
779 | var->right_margin = hlimit - var->left_margin - var->xres; |
780 | var->lower_margin = vlimit - var->upper_margin - var->yres; | |
32db7754 HV |
781 | |
782 | /* Fixed sync times */ | |
783 | var->hsync_len = 24; | |
784 | var->vsync_len = 2; | |
785 | ||
786 | /* Non-interlaced / interlaced mode is used to switch the OSD filter | |
787 | on or off. Adjust the clock timings to maintain a constant | |
788 | vertical refresh rate. */ | |
32db7754 | 789 | if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) |
68a341a5 IA |
790 | var->pixclock = pixclock / 2; |
791 | else | |
792 | var->pixclock = pixclock; | |
32db7754 | 793 | |
37f89f95 HV |
794 | itv->osd_rect.width = var->xres; |
795 | itv->osd_rect.height = var->yres; | |
796 | ||
641ed49d | 797 | IVTVFB_DEBUG_INFO("Display size: %dx%d (virtual %dx%d) @ %dbpp\n", |
be383bd3 HV |
798 | var->xres, var->yres, |
799 | var->xres_virtual, var->yres_virtual, | |
32db7754 HV |
800 | var->bits_per_pixel); |
801 | ||
641ed49d | 802 | IVTVFB_DEBUG_INFO("Display position: %d, %d\n", |
be383bd3 | 803 | var->left_margin, var->upper_margin); |
32db7754 | 804 | |
641ed49d | 805 | IVTVFB_DEBUG_INFO("Display filter: %s\n", |
be383bd3 | 806 | (var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED ? "on" : "off"); |
641ed49d | 807 | IVTVFB_DEBUG_INFO("Color space: %s\n", var->nonstd ? "YUV" : "RGB"); |
32db7754 HV |
808 | return 0; |
809 | } | |
810 | ||
811 | static int ivtvfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) | |
812 | { | |
813 | struct ivtv *itv = (struct ivtv *) info->par; | |
641ed49d | 814 | IVTVFB_DEBUG_INFO("ivtvfb_check_var\n"); |
be383bd3 | 815 | return _ivtvfb_check_var(var, itv); |
32db7754 HV |
816 | } |
817 | ||
818 | static int ivtvfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) | |
819 | { | |
820 | u32 osd_pan_index; | |
821 | struct ivtv *itv = (struct ivtv *) info->par; | |
822 | ||
823 | osd_pan_index = (var->xoffset + (var->yoffset * var->xres_virtual))*var->bits_per_pixel/8; | |
be383bd3 | 824 | write_reg(osd_pan_index, 0x02A0C); |
32db7754 HV |
825 | |
826 | /* Pass this info back the yuv handler */ | |
827 | itv->yuv_info.osd_x_pan = var->xoffset; | |
828 | itv->yuv_info.osd_y_pan = var->yoffset; | |
829 | /* Force update of yuv registers */ | |
830 | itv->yuv_info.yuv_forced_update = 1; | |
831 | return 0; | |
832 | } | |
833 | ||
834 | static int ivtvfb_set_par(struct fb_info *info) | |
835 | { | |
836 | int rc = 0; | |
837 | struct ivtv *itv = (struct ivtv *) info->par; | |
838 | ||
641ed49d | 839 | IVTVFB_DEBUG_INFO("ivtvfb_set_par\n"); |
32db7754 HV |
840 | |
841 | rc = ivtvfb_set_var(itv, &info->var); | |
842 | ivtvfb_pan_display(&info->var, info); | |
be383bd3 | 843 | ivtvfb_get_fix(itv, &info->fix); |
32db7754 HV |
844 | return rc; |
845 | } | |
846 | ||
847 | static int ivtvfb_setcolreg(unsigned regno, unsigned red, unsigned green, | |
848 | unsigned blue, unsigned transp, | |
849 | struct fb_info *info) | |
850 | { | |
851 | u32 color, *palette; | |
be383bd3 | 852 | struct ivtv *itv = (struct ivtv *)info->par; |
32db7754 HV |
853 | |
854 | if (regno >= info->cmap.len) | |
855 | return -EINVAL; | |
856 | ||
857 | color = ((transp & 0xFF00) << 16) |((red & 0xFF00) << 8) | (green & 0xFF00) | ((blue & 0xFF00) >> 8); | |
858 | if (info->var.bits_per_pixel <= 8) { | |
859 | write_reg(regno, 0x02a30); | |
860 | write_reg(color, 0x02a34); | |
be383bd3 | 861 | return 0; |
32db7754 | 862 | } |
be383bd3 HV |
863 | if (regno >= 16) |
864 | return -EINVAL; | |
32db7754 | 865 | |
be383bd3 HV |
866 | palette = info->pseudo_palette; |
867 | if (info->var.bits_per_pixel == 16) { | |
868 | switch (info->var.green.length) { | |
869 | case 4: | |
870 | color = ((red & 0xf000) >> 4) | | |
871 | ((green & 0xf000) >> 8) | | |
872 | ((blue & 0xf000) >> 12); | |
873 | break; | |
874 | case 5: | |
875 | color = ((red & 0xf800) >> 1) | | |
876 | ((green & 0xf800) >> 6) | | |
877 | ((blue & 0xf800) >> 11); | |
878 | break; | |
879 | case 6: | |
880 | color = (red & 0xf800 ) | | |
881 | ((green & 0xfc00) >> 5) | | |
882 | ((blue & 0xf800) >> 11); | |
883 | break; | |
32db7754 | 884 | } |
32db7754 | 885 | } |
be383bd3 | 886 | palette[regno] = color; |
32db7754 HV |
887 | return 0; |
888 | } | |
889 | ||
890 | /* We don't really support blanking. All this does is enable or | |
891 | disable the OSD. */ | |
892 | static int ivtvfb_blank(int blank_mode, struct fb_info *info) | |
893 | { | |
894 | struct ivtv *itv = (struct ivtv *)info->par; | |
895 | ||
641ed49d | 896 | IVTVFB_DEBUG_INFO("Set blanking mode : %d\n", blank_mode); |
32db7754 HV |
897 | switch (blank_mode) { |
898 | case FB_BLANK_UNBLANK: | |
899 | ivtv_vapi(itv, CX2341X_OSD_SET_STATE, 1, 1); | |
67ec09fd | 900 | ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_stream, 1); |
32db7754 HV |
901 | break; |
902 | case FB_BLANK_NORMAL: | |
903 | case FB_BLANK_HSYNC_SUSPEND: | |
904 | case FB_BLANK_VSYNC_SUSPEND: | |
4e7ca40d | 905 | ivtv_vapi(itv, CX2341X_OSD_SET_STATE, 1, 0); |
67ec09fd | 906 | ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_stream, 1); |
4e7ca40d | 907 | break; |
32db7754 | 908 | case FB_BLANK_POWERDOWN: |
67ec09fd | 909 | ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_stream, 0); |
32db7754 HV |
910 | ivtv_vapi(itv, CX2341X_OSD_SET_STATE, 1, 0); |
911 | break; | |
912 | } | |
913 | return 0; | |
914 | } | |
915 | ||
916 | static struct fb_ops ivtvfb_ops = { | |
917 | .owner = THIS_MODULE, | |
4cbeb371 | 918 | .fb_write = ivtvfb_write, |
32db7754 HV |
919 | .fb_check_var = ivtvfb_check_var, |
920 | .fb_set_par = ivtvfb_set_par, | |
921 | .fb_setcolreg = ivtvfb_setcolreg, | |
922 | .fb_fillrect = cfb_fillrect, | |
923 | .fb_copyarea = cfb_copyarea, | |
924 | .fb_imageblit = cfb_imageblit, | |
925 | .fb_cursor = NULL, | |
926 | .fb_ioctl = ivtvfb_ioctl, | |
927 | .fb_pan_display = ivtvfb_pan_display, | |
928 | .fb_blank = ivtvfb_blank, | |
929 | }; | |
930 | ||
931 | /* Initialization */ | |
932 | ||
933 | ||
934 | /* Setup our initial video mode */ | |
935 | static int ivtvfb_init_vidmode(struct ivtv *itv) | |
936 | { | |
be383bd3 | 937 | struct osd_info *oi = itv->osd_info; |
32db7754 | 938 | struct v4l2_rect start_window; |
be383bd3 | 939 | int max_height; |
32db7754 | 940 | |
32db7754 HV |
941 | /* Color mode */ |
942 | ||
6b1ec9da IA |
943 | if (osd_depth != 8 && osd_depth != 16 && osd_depth != 32) |
944 | osd_depth = 8; | |
be383bd3 HV |
945 | oi->bits_per_pixel = osd_depth; |
946 | oi->bytes_per_pixel = oi->bits_per_pixel / 8; | |
32db7754 HV |
947 | |
948 | /* Horizontal size & position */ | |
949 | ||
6b1ec9da IA |
950 | if (osd_xres > 720) |
951 | osd_xres = 720; | |
32db7754 HV |
952 | |
953 | /* Must be a multiple of 4 for 8bpp & 2 for 16bpp */ | |
954 | if (osd_depth == 8) | |
955 | osd_xres &= ~3; | |
956 | else if (osd_depth == 16) | |
957 | osd_xres &= ~1; | |
958 | ||
6b1ec9da | 959 | start_window.width = osd_xres ? osd_xres : 640; |
32db7754 HV |
960 | |
961 | /* Check horizontal start (osd_left). */ | |
962 | if (osd_left && osd_left + start_window.width > 721) { | |
641ed49d | 963 | IVTVFB_ERR("Invalid osd_left - assuming default\n"); |
32db7754 HV |
964 | osd_left = 0; |
965 | } | |
966 | ||
967 | /* Hardware coords start at 0, user coords start at 1. */ | |
be383bd3 | 968 | osd_left--; |
32db7754 | 969 | |
be383bd3 | 970 | start_window.left = osd_left >= 0 ? osd_left : ((IVTV_OSD_MAX_WIDTH - start_window.width) / 2); |
32db7754 | 971 | |
be383bd3 HV |
972 | oi->display_byte_stride = |
973 | start_window.width * oi->bytes_per_pixel; | |
32db7754 HV |
974 | |
975 | /* Vertical size & position */ | |
976 | ||
977 | max_height = itv->is_50hz ? 576 : 480; | |
978 | ||
be383bd3 HV |
979 | if (osd_yres > max_height) |
980 | osd_yres = max_height; | |
32db7754 | 981 | |
6b1ec9da | 982 | start_window.height = osd_yres ? osd_yres : itv->is_50hz ? 480 : 400; |
32db7754 HV |
983 | |
984 | /* Check vertical start (osd_upper). */ | |
985 | if (osd_upper + start_window.height > max_height + 1) { | |
641ed49d | 986 | IVTVFB_ERR("Invalid osd_upper - assuming default\n"); |
32db7754 HV |
987 | osd_upper = 0; |
988 | } | |
989 | ||
990 | /* Hardware coords start at 0, user coords start at 1. */ | |
be383bd3 | 991 | osd_upper--; |
32db7754 HV |
992 | |
993 | start_window.top = osd_upper >= 0 ? osd_upper : ((max_height - start_window.height) / 2); | |
994 | ||
be383bd3 HV |
995 | oi->display_width = start_window.width; |
996 | oi->display_height = start_window.height; | |
32db7754 HV |
997 | |
998 | /* Generate a valid fb_var_screeninfo */ | |
999 | ||
be383bd3 HV |
1000 | oi->ivtvfb_defined.xres = oi->display_width; |
1001 | oi->ivtvfb_defined.yres = oi->display_height; | |
1002 | oi->ivtvfb_defined.xres_virtual = oi->display_width; | |
1003 | oi->ivtvfb_defined.yres_virtual = oi->display_height; | |
1004 | oi->ivtvfb_defined.bits_per_pixel = oi->bits_per_pixel; | |
1005 | oi->ivtvfb_defined.vmode = (osd_laced ? FB_VMODE_INTERLACED : FB_VMODE_NONINTERLACED); | |
1006 | oi->ivtvfb_defined.left_margin = start_window.left + 1; | |
1007 | oi->ivtvfb_defined.upper_margin = start_window.top + 1; | |
1008 | oi->ivtvfb_defined.accel_flags = FB_ACCEL_NONE; | |
1009 | oi->ivtvfb_defined.nonstd = 0; | |
32db7754 HV |
1010 | |
1011 | /* We've filled in the most data, let the usual mode check | |
1012 | routine fill in the rest. */ | |
be383bd3 | 1013 | _ivtvfb_check_var(&oi->ivtvfb_defined, itv); |
32db7754 HV |
1014 | |
1015 | /* Generate valid fb_fix_screeninfo */ | |
1016 | ||
be383bd3 | 1017 | ivtvfb_get_fix(itv, &oi->ivtvfb_fix); |
32db7754 HV |
1018 | |
1019 | /* Generate valid fb_info */ | |
1020 | ||
be383bd3 HV |
1021 | oi->ivtvfb_info.node = -1; |
1022 | oi->ivtvfb_info.flags = FBINFO_FLAG_DEFAULT; | |
1023 | oi->ivtvfb_info.fbops = &ivtvfb_ops; | |
1024 | oi->ivtvfb_info.par = itv; | |
1025 | oi->ivtvfb_info.var = oi->ivtvfb_defined; | |
1026 | oi->ivtvfb_info.fix = oi->ivtvfb_fix; | |
1027 | oi->ivtvfb_info.screen_base = (u8 __iomem *)oi->video_vbase; | |
1028 | oi->ivtvfb_info.fbops = &ivtvfb_ops; | |
32db7754 HV |
1029 | |
1030 | /* Supply some monitor specs. Bogus values will do for now */ | |
be383bd3 HV |
1031 | oi->ivtvfb_info.monspecs.hfmin = 8000; |
1032 | oi->ivtvfb_info.monspecs.hfmax = 70000; | |
1033 | oi->ivtvfb_info.monspecs.vfmin = 10; | |
1034 | oi->ivtvfb_info.monspecs.vfmax = 100; | |
32db7754 HV |
1035 | |
1036 | /* Allocate color map */ | |
be383bd3 | 1037 | if (fb_alloc_cmap(&oi->ivtvfb_info.cmap, 256, 1)) { |
641ed49d | 1038 | IVTVFB_ERR("abort, unable to alloc cmap\n"); |
32db7754 HV |
1039 | return -ENOMEM; |
1040 | } | |
1041 | ||
1042 | /* Allocate the pseudo palette */ | |
3f98387e HV |
1043 | oi->ivtvfb_info.pseudo_palette = |
1044 | kmalloc(sizeof(u32) * 16, GFP_KERNEL|__GFP_NOWARN); | |
32db7754 | 1045 | |
be383bd3 | 1046 | if (!oi->ivtvfb_info.pseudo_palette) { |
641ed49d | 1047 | IVTVFB_ERR("abort, unable to alloc pseudo pallete\n"); |
32db7754 HV |
1048 | return -ENOMEM; |
1049 | } | |
1050 | ||
1051 | return 0; | |
1052 | } | |
1053 | ||
1054 | /* Find OSD buffer base & size. Add to mtrr. Zero osd buffer. */ | |
1055 | ||
1056 | static int ivtvfb_init_io(struct ivtv *itv) | |
1057 | { | |
be383bd3 HV |
1058 | struct osd_info *oi = itv->osd_info; |
1059 | ||
26e9d599 | 1060 | mutex_lock(&itv->serialize_lock); |
6e5eb591 | 1061 | if (ivtv_init_on_first_open(itv)) { |
26e9d599 | 1062 | mutex_unlock(&itv->serialize_lock); |
641ed49d | 1063 | IVTVFB_ERR("Failed to initialize ivtv\n"); |
6e5eb591 HV |
1064 | return -ENXIO; |
1065 | } | |
26e9d599 | 1066 | mutex_unlock(&itv->serialize_lock); |
6e5eb591 | 1067 | |
641ed49d | 1068 | ivtvfb_get_framebuffer(itv, &oi->video_rbase, &oi->video_buffer_size); |
32db7754 HV |
1069 | |
1070 | /* The osd buffer size depends on the number of video buffers allocated | |
1071 | on the PVR350 itself. For now we'll hardcode the smallest osd buffer | |
1072 | size to prevent any overlap. */ | |
be383bd3 | 1073 | oi->video_buffer_size = 1704960; |
32db7754 | 1074 | |
be383bd3 HV |
1075 | oi->video_pbase = itv->base_addr + IVTV_DECODER_OFFSET + oi->video_rbase; |
1076 | oi->video_vbase = itv->dec_mem + oi->video_rbase; | |
32db7754 | 1077 | |
be383bd3 | 1078 | if (!oi->video_vbase) { |
641ed49d | 1079 | IVTVFB_ERR("abort, video memory 0x%x @ 0x%lx isn't mapped!\n", |
be383bd3 | 1080 | oi->video_buffer_size, oi->video_pbase); |
32db7754 HV |
1081 | return -EIO; |
1082 | } | |
1083 | ||
641ed49d | 1084 | IVTVFB_INFO("Framebuffer at 0x%lx, mapped to 0x%p, size %dk\n", |
be383bd3 HV |
1085 | oi->video_pbase, oi->video_vbase, |
1086 | oi->video_buffer_size / 1024); | |
32db7754 HV |
1087 | |
1088 | #ifdef CONFIG_MTRR | |
1089 | { | |
1090 | /* Find the largest power of two that maps the whole buffer */ | |
1091 | int size_shift = 31; | |
1092 | ||
be383bd3 | 1093 | while (!(oi->video_buffer_size & (1 << size_shift))) { |
32db7754 HV |
1094 | size_shift--; |
1095 | } | |
1096 | size_shift++; | |
be383bd3 HV |
1097 | oi->fb_start_aligned_physaddr = oi->video_pbase & ~((1 << size_shift) - 1); |
1098 | oi->fb_end_aligned_physaddr = oi->video_pbase + oi->video_buffer_size; | |
1099 | oi->fb_end_aligned_physaddr += (1 << size_shift) - 1; | |
1100 | oi->fb_end_aligned_physaddr &= ~((1 << size_shift) - 1); | |
1101 | if (mtrr_add(oi->fb_start_aligned_physaddr, | |
1102 | oi->fb_end_aligned_physaddr - oi->fb_start_aligned_physaddr, | |
32db7754 | 1103 | MTRR_TYPE_WRCOMB, 1) < 0) { |
641ed49d | 1104 | IVTVFB_INFO("disabled mttr\n"); |
be383bd3 HV |
1105 | oi->fb_start_aligned_physaddr = 0; |
1106 | oi->fb_end_aligned_physaddr = 0; | |
32db7754 HV |
1107 | } |
1108 | } | |
be383bd3 | 1109 | #endif |
32db7754 HV |
1110 | |
1111 | /* Blank the entire osd. */ | |
be383bd3 | 1112 | memset_io(oi->video_vbase, 0, oi->video_buffer_size); |
32db7754 HV |
1113 | |
1114 | return 0; | |
1115 | } | |
1116 | ||
1117 | /* Release any memory we've grabbed & remove mtrr entry */ | |
1118 | static void ivtvfb_release_buffers (struct ivtv *itv) | |
1119 | { | |
be383bd3 HV |
1120 | struct osd_info *oi = itv->osd_info; |
1121 | ||
32db7754 | 1122 | /* Release cmap */ |
13628032 AB |
1123 | if (oi->ivtvfb_info.cmap.len) |
1124 | fb_dealloc_cmap(&oi->ivtvfb_info.cmap); | |
32db7754 HV |
1125 | |
1126 | /* Release pseudo palette */ | |
be383bd3 HV |
1127 | if (oi->ivtvfb_info.pseudo_palette) |
1128 | kfree(oi->ivtvfb_info.pseudo_palette); | |
32db7754 HV |
1129 | |
1130 | #ifdef CONFIG_MTRR | |
be383bd3 HV |
1131 | if (oi->fb_end_aligned_physaddr) { |
1132 | mtrr_del(-1, oi->fb_start_aligned_physaddr, | |
1133 | oi->fb_end_aligned_physaddr - oi->fb_start_aligned_physaddr); | |
1134 | } | |
1135 | #endif | |
32db7754 | 1136 | |
be383bd3 | 1137 | kfree(oi); |
32db7754 HV |
1138 | itv->osd_info = NULL; |
1139 | } | |
1140 | ||
1141 | /* Initialize the specified card */ | |
1142 | ||
be383bd3 | 1143 | static int ivtvfb_init_card(struct ivtv *itv) |
32db7754 HV |
1144 | { |
1145 | int rc; | |
1146 | ||
1147 | if (itv->osd_info) { | |
641ed49d | 1148 | IVTVFB_ERR("Card %d already initialised\n", ivtvfb_card_id); |
32db7754 HV |
1149 | return -EBUSY; |
1150 | } | |
1151 | ||
3f98387e HV |
1152 | itv->osd_info = kzalloc(sizeof(struct osd_info), |
1153 | GFP_ATOMIC|__GFP_NOWARN); | |
14d5deba | 1154 | if (itv->osd_info == NULL) { |
641ed49d | 1155 | IVTVFB_ERR("Failed to allocate memory for osd_info\n"); |
32db7754 HV |
1156 | return -ENOMEM; |
1157 | } | |
1158 | ||
1159 | /* Find & setup the OSD buffer */ | |
be383bd3 | 1160 | if ((rc = ivtvfb_init_io(itv))) |
32db7754 HV |
1161 | return rc; |
1162 | ||
1163 | /* Set the startup video mode information */ | |
be383bd3 | 1164 | if ((rc = ivtvfb_init_vidmode(itv))) { |
32db7754 HV |
1165 | ivtvfb_release_buffers(itv); |
1166 | return rc; | |
1167 | } | |
1168 | ||
1169 | /* Register the framebuffer */ | |
1170 | if (register_framebuffer(&itv->osd_info->ivtvfb_info) < 0) { | |
1171 | ivtvfb_release_buffers(itv); | |
1172 | return -EINVAL; | |
1173 | } | |
1174 | ||
1175 | itv->osd_video_pbase = itv->osd_info->video_pbase; | |
1176 | ||
1177 | /* Set the card to the requested mode */ | |
1178 | ivtvfb_set_par(&itv->osd_info->ivtvfb_info); | |
1179 | ||
1180 | /* Set color 0 to black */ | |
1181 | write_reg(0, 0x02a30); | |
1182 | write_reg(0, 0x02a34); | |
1183 | ||
1184 | /* Enable the osd */ | |
1185 | ivtvfb_blank(FB_BLANK_UNBLANK, &itv->osd_info->ivtvfb_info); | |
1186 | ||
32db7754 HV |
1187 | /* Allocate DMA */ |
1188 | ivtv_udma_alloc(itv); | |
1189 | return 0; | |
1190 | ||
1191 | } | |
1192 | ||
67ec09fd HV |
1193 | static int __init ivtvfb_callback_init(struct device *dev, void *p) |
1194 | { | |
1195 | struct v4l2_device *v4l2_dev = dev_get_drvdata(dev); | |
8ac05ae3 | 1196 | struct ivtv *itv = container_of(v4l2_dev, struct ivtv, v4l2_dev); |
67ec09fd HV |
1197 | |
1198 | if (itv && (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) { | |
1199 | if (ivtvfb_init_card(itv) == 0) { | |
1200 | IVTVFB_INFO("Framebuffer registered on %s\n", | |
8ac05ae3 | 1201 | itv->v4l2_dev.name); |
67ec09fd HV |
1202 | (*(int *)p)++; |
1203 | } | |
1204 | } | |
1205 | return 0; | |
1206 | } | |
1207 | ||
1208 | static int ivtvfb_callback_cleanup(struct device *dev, void *p) | |
1209 | { | |
1210 | struct v4l2_device *v4l2_dev = dev_get_drvdata(dev); | |
8ac05ae3 | 1211 | struct ivtv *itv = container_of(v4l2_dev, struct ivtv, v4l2_dev); |
67ec09fd HV |
1212 | |
1213 | if (itv && (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) { | |
1214 | if (unregister_framebuffer(&itv->osd_info->ivtvfb_info)) { | |
1215 | IVTVFB_WARN("Framebuffer %d is in use, cannot unload\n", | |
1216 | itv->instance); | |
1217 | return 0; | |
1218 | } | |
1219 | IVTVFB_INFO("Unregister framebuffer %d\n", itv->instance); | |
1220 | ivtvfb_blank(FB_BLANK_POWERDOWN, &itv->osd_info->ivtvfb_info); | |
1221 | ivtvfb_release_buffers(itv); | |
1222 | itv->osd_video_pbase = 0; | |
1223 | } | |
1224 | return 0; | |
1225 | } | |
1226 | ||
32db7754 HV |
1227 | static int __init ivtvfb_init(void) |
1228 | { | |
67ec09fd HV |
1229 | struct device_driver *drv; |
1230 | int registered = 0; | |
1231 | int err; | |
32db7754 | 1232 | |
641ed49d HV |
1233 | if (ivtvfb_card_id < -1 || ivtvfb_card_id >= IVTV_MAX_CARDS) { |
1234 | printk(KERN_ERR "ivtvfb: ivtvfb_card_id parameter is out of range (valid range: -1 - %d)\n", | |
32db7754 HV |
1235 | IVTV_MAX_CARDS - 1); |
1236 | return -EINVAL; | |
1237 | } | |
1238 | ||
67ec09fd HV |
1239 | drv = driver_find("ivtv", &pci_bus_type); |
1240 | err = driver_for_each_device(drv, NULL, ®istered, ivtvfb_callback_init); | |
1241 | put_driver(drv); | |
32db7754 | 1242 | if (!registered) { |
67ec09fd | 1243 | printk(KERN_ERR "ivtvfb: no cards found\n"); |
32db7754 HV |
1244 | return -ENODEV; |
1245 | } | |
1246 | return 0; | |
1247 | } | |
1248 | ||
1249 | static void ivtvfb_cleanup(void) | |
1250 | { | |
67ec09fd HV |
1251 | struct device_driver *drv; |
1252 | int err; | |
32db7754 | 1253 | |
7b3a0d49 | 1254 | printk(KERN_INFO "ivtvfb: Unloading framebuffer module\n"); |
32db7754 | 1255 | |
67ec09fd HV |
1256 | drv = driver_find("ivtv", &pci_bus_type); |
1257 | err = driver_for_each_device(drv, NULL, NULL, ivtvfb_callback_cleanup); | |
1258 | put_driver(drv); | |
32db7754 HV |
1259 | } |
1260 | ||
1261 | module_init(ivtvfb_init); | |
1262 | module_exit(ivtvfb_cleanup); |