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" | |
32db7754 | 51 | #include "ivtv-udma.h" |
32db7754 | 52 | #include "ivtv-mailbox.h" |
32db7754 HV |
53 | |
54 | /* card parameters */ | |
641ed49d HV |
55 | static int ivtvfb_card_id = -1; |
56 | static int ivtvfb_debug = 0; | |
32db7754 | 57 | static int osd_laced; |
32db7754 HV |
58 | static int osd_depth; |
59 | static int osd_upper; | |
60 | static int osd_left; | |
61 | static int osd_yres; | |
62 | static int osd_xres; | |
63 | ||
641ed49d HV |
64 | module_param(ivtvfb_card_id, int, 0444); |
65 | module_param_named(debug,ivtvfb_debug, int, 0644); | |
32db7754 | 66 | module_param(osd_laced, bool, 0444); |
32db7754 HV |
67 | module_param(osd_depth, int, 0444); |
68 | module_param(osd_upper, int, 0444); | |
69 | module_param(osd_left, int, 0444); | |
70 | module_param(osd_yres, int, 0444); | |
71 | module_param(osd_xres, int, 0444); | |
72 | ||
641ed49d | 73 | MODULE_PARM_DESC(ivtvfb_card_id, |
32db7754 HV |
74 | "Only use framebuffer of the specified ivtv card (0-31)\n" |
75 | "\t\t\tdefault -1: initialize all available framebuffers"); | |
76 | ||
77 | MODULE_PARM_DESC(debug, | |
78 | "Debug level (bitmask). Default: errors only\n" | |
79 | "\t\t\t(debug = 3 gives full debugging)"); | |
80 | ||
32db7754 HV |
81 | /* Why upper, left, xres, yres, depth, laced ? To match terminology used |
82 | by fbset. | |
83 | Why start at 1 for left & upper coordinate ? Because X doesn't allow 0 */ | |
84 | ||
85 | MODULE_PARM_DESC(osd_laced, | |
86 | "Interlaced mode\n" | |
87 | "\t\t\t0=off\n" | |
88 | "\t\t\t1=on\n" | |
89 | "\t\t\tdefault off"); | |
90 | ||
91 | MODULE_PARM_DESC(osd_depth, | |
be383bd3 | 92 | "Bits per pixel - 8, 16, 32\n" |
32db7754 HV |
93 | "\t\t\tdefault 8"); |
94 | ||
95 | MODULE_PARM_DESC(osd_upper, | |
96 | "Vertical start position\n" | |
97 | "\t\t\tdefault 0 (Centered)"); | |
98 | ||
99 | MODULE_PARM_DESC(osd_left, | |
100 | "Horizontal start position\n" | |
101 | "\t\t\tdefault 0 (Centered)"); | |
102 | ||
103 | MODULE_PARM_DESC(osd_yres, | |
104 | "Display height\n" | |
105 | "\t\t\tdefault 480 (PAL)\n" | |
106 | "\t\t\t 400 (NTSC)"); | |
107 | ||
108 | MODULE_PARM_DESC(osd_xres, | |
109 | "Display width\n" | |
110 | "\t\t\tdefault 640"); | |
111 | ||
112 | MODULE_AUTHOR("Kevin Thayer, Chris Kennedy, Hans Verkuil, John Harvey, Ian Armstrong"); | |
113 | MODULE_LICENSE("GPL"); | |
114 | ||
115 | /* --------------------------------------------------------------------- */ | |
116 | ||
641ed49d HV |
117 | #define IVTVFB_DBGFLG_WARN (1 << 0) |
118 | #define IVTVFB_DBGFLG_INFO (1 << 1) | |
32db7754 | 119 | |
641ed49d | 120 | #define IVTVFB_DEBUG(x, type, fmt, args...) \ |
32db7754 | 121 | do { \ |
641ed49d | 122 | if ((x) & ivtvfb_debug) \ |
7b3a0d49 | 123 | printk(KERN_INFO "ivtvfb%d " type ": " fmt, itv->num , ## args); \ |
32db7754 | 124 | } while (0) |
641ed49d HV |
125 | #define IVTVFB_DEBUG_WARN(fmt, args...) IVTVFB_DEBUG(IVTVFB_DBGFLG_WARN, "warning", fmt , ## args) |
126 | #define IVTVFB_DEBUG_INFO(fmt, args...) IVTVFB_DEBUG(IVTVFB_DBGFLG_INFO, "info", fmt , ## args) | |
32db7754 HV |
127 | |
128 | /* Standard kernel messages */ | |
641ed49d HV |
129 | #define IVTVFB_ERR(fmt, args...) printk(KERN_ERR "ivtvfb%d: " fmt, itv->num , ## args) |
130 | #define IVTVFB_WARN(fmt, args...) printk(KERN_WARNING "ivtvfb%d: " fmt, itv->num , ## args) | |
131 | #define IVTVFB_INFO(fmt, args...) printk(KERN_INFO "ivtvfb%d: " fmt, itv->num , ## args) | |
32db7754 HV |
132 | |
133 | /* --------------------------------------------------------------------- */ | |
134 | ||
135 | #define IVTV_OSD_MAX_WIDTH 720 | |
136 | #define IVTV_OSD_MAX_HEIGHT 576 | |
137 | ||
138 | #define IVTV_OSD_BPP_8 0x00 | |
139 | #define IVTV_OSD_BPP_16_444 0x03 | |
140 | #define IVTV_OSD_BPP_16_555 0x02 | |
141 | #define IVTV_OSD_BPP_16_565 0x01 | |
142 | #define IVTV_OSD_BPP_32 0x04 | |
143 | ||
144 | struct osd_info { | |
32db7754 HV |
145 | /* Physical base address */ |
146 | unsigned long video_pbase; | |
147 | /* Relative base address (relative to start of decoder memory) */ | |
148 | u32 video_rbase; | |
149 | /* Mapped base address */ | |
150 | volatile char __iomem *video_vbase; | |
151 | /* Buffer size */ | |
152 | u32 video_buffer_size; | |
153 | ||
154 | #ifdef CONFIG_MTRR | |
155 | /* video_base rounded down as required by hardware MTRRs */ | |
156 | unsigned long fb_start_aligned_physaddr; | |
157 | /* video_base rounded up as required by hardware MTRRs */ | |
158 | unsigned long fb_end_aligned_physaddr; | |
159 | #endif | |
160 | ||
161 | /* Store the buffer offset */ | |
162 | int set_osd_coords_x; | |
163 | int set_osd_coords_y; | |
164 | ||
165 | /* Current dimensions (NOT VISIBLE SIZE!) */ | |
166 | int display_width; | |
167 | int display_height; | |
168 | int display_byte_stride; | |
169 | ||
170 | /* Current bits per pixel */ | |
171 | int bits_per_pixel; | |
172 | int bytes_per_pixel; | |
173 | ||
174 | /* Frame buffer stuff */ | |
175 | struct fb_info ivtvfb_info; | |
176 | struct fb_var_screeninfo ivtvfb_defined; | |
177 | struct fb_fix_screeninfo ivtvfb_fix; | |
178 | }; | |
179 | ||
180 | struct ivtv_osd_coords { | |
181 | unsigned long offset; | |
182 | unsigned long max_offset; | |
183 | int pixel_stride; | |
184 | int lines; | |
185 | int x; | |
186 | int y; | |
187 | }; | |
188 | ||
189 | /* --------------------------------------------------------------------- */ | |
190 | ||
191 | /* ivtv API calls for framebuffer related support */ | |
192 | ||
641ed49d | 193 | static int ivtvfb_get_framebuffer(struct ivtv *itv, u32 *fbbase, |
32db7754 HV |
194 | u32 *fblength) |
195 | { | |
196 | u32 data[CX2341X_MBOX_MAX_DATA]; | |
197 | int rc; | |
198 | ||
199 | rc = ivtv_vapi_result(itv, data, CX2341X_OSD_GET_FRAMEBUFFER, 0); | |
200 | *fbbase = data[0]; | |
201 | *fblength = data[1]; | |
202 | return rc; | |
203 | } | |
204 | ||
641ed49d | 205 | static int ivtvfb_get_osd_coords(struct ivtv *itv, |
32db7754 HV |
206 | struct ivtv_osd_coords *osd) |
207 | { | |
be383bd3 | 208 | struct osd_info *oi = itv->osd_info; |
32db7754 HV |
209 | u32 data[CX2341X_MBOX_MAX_DATA]; |
210 | ||
211 | ivtv_vapi_result(itv, data, CX2341X_OSD_GET_OSD_COORDS, 0); | |
212 | ||
be383bd3 HV |
213 | osd->offset = data[0] - oi->video_rbase; |
214 | osd->max_offset = oi->display_width * oi->display_height * 4; | |
32db7754 HV |
215 | osd->pixel_stride = data[1]; |
216 | osd->lines = data[2]; | |
217 | osd->x = data[3]; | |
218 | osd->y = data[4]; | |
219 | return 0; | |
220 | } | |
221 | ||
641ed49d | 222 | static int ivtvfb_set_osd_coords(struct ivtv *itv, const struct ivtv_osd_coords *osd) |
32db7754 | 223 | { |
be383bd3 HV |
224 | struct osd_info *oi = itv->osd_info; |
225 | ||
226 | oi->display_width = osd->pixel_stride; | |
227 | oi->display_byte_stride = osd->pixel_stride * oi->bytes_per_pixel; | |
228 | oi->set_osd_coords_x += osd->x; | |
229 | oi->set_osd_coords_y = osd->y; | |
32db7754 HV |
230 | |
231 | return ivtv_vapi(itv, CX2341X_OSD_SET_OSD_COORDS, 5, | |
be383bd3 | 232 | osd->offset + oi->video_rbase, |
32db7754 HV |
233 | osd->pixel_stride, |
234 | osd->lines, osd->x, osd->y); | |
235 | } | |
236 | ||
641ed49d | 237 | static int ivtvfb_set_display_window(struct ivtv *itv, struct v4l2_rect *ivtv_window) |
32db7754 | 238 | { |
32db7754 HV |
239 | int osd_height_limit = itv->is_50hz ? 576 : 480; |
240 | ||
241 | /* Only fail if resolution too high, otherwise fudge the start coords. */ | |
242 | if ((ivtv_window->height > osd_height_limit) || (ivtv_window->width > IVTV_OSD_MAX_WIDTH)) | |
243 | return -EINVAL; | |
244 | ||
245 | /* Ensure we don't exceed display limits */ | |
246 | if (ivtv_window->top + ivtv_window->height > osd_height_limit) { | |
641ed49d | 247 | IVTVFB_DEBUG_WARN("ivtv_ioctl_fb_set_display_window - Invalid height setting (%d, %d)\n", |
32db7754 HV |
248 | ivtv_window->top, ivtv_window->height); |
249 | ivtv_window->top = osd_height_limit - ivtv_window->height; | |
250 | } | |
251 | ||
252 | if (ivtv_window->left + ivtv_window->width > IVTV_OSD_MAX_WIDTH) { | |
641ed49d | 253 | IVTVFB_DEBUG_WARN("ivtv_ioctl_fb_set_display_window - Invalid width setting (%d, %d)\n", |
32db7754 HV |
254 | ivtv_window->left, ivtv_window->width); |
255 | ivtv_window->left = IVTV_OSD_MAX_WIDTH - ivtv_window->width; | |
256 | } | |
257 | ||
258 | /* Set the OSD origin */ | |
259 | write_reg((ivtv_window->top << 16) | ivtv_window->left, 0x02a04); | |
260 | ||
261 | /* How much to display */ | |
262 | write_reg(((ivtv_window->top+ivtv_window->height) << 16) | (ivtv_window->left+ivtv_window->width), 0x02a08); | |
263 | ||
264 | /* Pass this info back the yuv handler */ | |
265 | itv->yuv_info.osd_vis_w = ivtv_window->width; | |
266 | itv->yuv_info.osd_vis_h = ivtv_window->height; | |
267 | itv->yuv_info.osd_x_offset = ivtv_window->left; | |
268 | itv->yuv_info.osd_y_offset = ivtv_window->top; | |
269 | ||
270 | return 0; | |
271 | } | |
272 | ||
641ed49d | 273 | static int ivtvfb_prep_dec_dma_to_device(struct ivtv *itv, |
32db7754 HV |
274 | unsigned long ivtv_dest_addr, void __user *userbuf, |
275 | int size_in_bytes) | |
276 | { | |
277 | DEFINE_WAIT(wait); | |
278 | int ret = 0; | |
279 | int got_sig = 0; | |
280 | ||
281 | mutex_lock(&itv->udma.lock); | |
282 | /* Map User DMA */ | |
283 | if (ivtv_udma_setup(itv, ivtv_dest_addr, userbuf, size_in_bytes) <= 0) { | |
284 | mutex_unlock(&itv->udma.lock); | |
641ed49d | 285 | IVTVFB_WARN("ivtvfb_prep_dec_dma_to_device, " |
32db7754 HV |
286 | "Error with get_user_pages: %d bytes, %d pages returned\n", |
287 | size_in_bytes, itv->udma.page_count); | |
288 | ||
289 | /* get_user_pages must have failed completely */ | |
290 | return -EIO; | |
291 | } | |
292 | ||
641ed49d | 293 | IVTVFB_DEBUG_INFO("ivtvfb_prep_dec_dma_to_device, %d bytes, %d pages\n", |
32db7754 HV |
294 | size_in_bytes, itv->udma.page_count); |
295 | ||
296 | ivtv_udma_prepare(itv); | |
297 | prepare_to_wait(&itv->dma_waitq, &wait, TASK_INTERRUPTIBLE); | |
298 | /* if no UDMA is pending and no UDMA is in progress, then the DMA | |
299 | is finished */ | |
300 | while (itv->i_flags & (IVTV_F_I_UDMA_PENDING | IVTV_F_I_UDMA)) { | |
301 | /* don't interrupt if the DMA is in progress but break off | |
302 | a still pending DMA. */ | |
303 | got_sig = signal_pending(current); | |
304 | if (got_sig && test_and_clear_bit(IVTV_F_I_UDMA_PENDING, &itv->i_flags)) | |
305 | break; | |
306 | got_sig = 0; | |
307 | schedule(); | |
308 | } | |
309 | finish_wait(&itv->dma_waitq, &wait); | |
310 | ||
311 | /* Unmap Last DMA Xfer */ | |
312 | ivtv_udma_unmap(itv); | |
313 | mutex_unlock(&itv->udma.lock); | |
314 | if (got_sig) { | |
315 | IVTV_DEBUG_INFO("User stopped OSD\n"); | |
316 | return -EINTR; | |
317 | } | |
318 | ||
319 | return ret; | |
320 | } | |
321 | ||
641ed49d | 322 | static int ivtvfb_prep_frame(struct ivtv *itv, int cmd, void __user *source, |
be383bd3 | 323 | unsigned long dest_offset, int count) |
32db7754 HV |
324 | { |
325 | DEFINE_WAIT(wait); | |
aaf9fa21 | 326 | struct osd_info *oi = itv->osd_info; |
32db7754 HV |
327 | |
328 | /* Nothing to do */ | |
329 | if (count == 0) { | |
641ed49d | 330 | IVTVFB_DEBUG_WARN("ivtvfb_prep_frame: Nothing to do. count = 0\n"); |
32db7754 HV |
331 | return -EINVAL; |
332 | } | |
333 | ||
334 | /* Check Total FB Size */ | |
aaf9fa21 | 335 | if ((dest_offset + count) > oi->video_buffer_size) { |
641ed49d | 336 | IVTVFB_WARN("ivtvfb_prep_frame: Overflowing the framebuffer %ld, only %d available\n", |
aaf9fa21 | 337 | dest_offset + count, oi->video_buffer_size); |
32db7754 HV |
338 | return -E2BIG; |
339 | } | |
340 | ||
341 | /* Not fatal, but will have undesirable results */ | |
342 | if ((unsigned long)source & 3) | |
641ed49d | 343 | IVTVFB_WARN("ivtvfb_prep_frame: Source address not 32 bit aligned (0x%08lx)\n", |
be383bd3 | 344 | (unsigned long)source); |
32db7754 HV |
345 | |
346 | if (dest_offset & 3) | |
641ed49d | 347 | IVTVFB_WARN("ivtvfb_prep_frame: Dest offset not 32 bit aligned (%ld)\n", dest_offset); |
32db7754 HV |
348 | |
349 | if (count & 3) | |
641ed49d | 350 | IVTVFB_WARN("ivtvfb_prep_frame: Count not a multiple of 4 (%d)\n", count); |
32db7754 HV |
351 | |
352 | /* Check Source */ | |
353 | if (!access_ok(VERIFY_READ, source + dest_offset, count)) { | |
641ed49d | 354 | IVTVFB_WARN("Invalid userspace pointer 0x%08lx\n", |
32db7754 HV |
355 | (unsigned long)source); |
356 | ||
641ed49d | 357 | IVTVFB_DEBUG_WARN("access_ok() failed for offset 0x%08lx source 0x%08lx count %d\n", |
32db7754 HV |
358 | dest_offset, (unsigned long)source, |
359 | count); | |
360 | return -EINVAL; | |
361 | } | |
362 | ||
363 | /* OSD Address to send DMA to */ | |
33c0fcad | 364 | dest_offset += IVTV_DECODER_OFFSET + oi->video_rbase; |
32db7754 HV |
365 | |
366 | /* Fill Buffers */ | |
641ed49d | 367 | return ivtvfb_prep_dec_dma_to_device(itv, dest_offset, source, count); |
32db7754 HV |
368 | } |
369 | ||
370 | static int ivtvfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) | |
371 | { | |
372 | DEFINE_WAIT(wait); | |
373 | struct ivtv *itv = (struct ivtv *)info->par; | |
be383bd3 | 374 | int rc = 0; |
32db7754 HV |
375 | |
376 | switch (cmd) { | |
32db7754 HV |
377 | case FBIOGET_VBLANK: { |
378 | struct fb_vblank vblank; | |
379 | u32 trace; | |
380 | ||
381 | vblank.flags = FB_VBLANK_HAVE_COUNT |FB_VBLANK_HAVE_VCOUNT | | |
382 | FB_VBLANK_HAVE_VSYNC; | |
be383bd3 | 383 | trace = read_reg(0x028c0) >> 16; |
32db7754 HV |
384 | if (itv->is_50hz && trace > 312) trace -= 312; |
385 | else if (itv->is_60hz && trace > 262) trace -= 262; | |
386 | if (trace == 1) vblank.flags |= FB_VBLANK_VSYNCING; | |
a158f355 | 387 | vblank.count = itv->last_vsync_field; |
32db7754 HV |
388 | vblank.vcount = trace; |
389 | vblank.hcount = 0; | |
390 | if (copy_to_user((void __user *)arg, &vblank, sizeof(vblank))) | |
391 | return -EFAULT; | |
392 | return 0; | |
393 | } | |
394 | ||
be383bd3 | 395 | case FBIO_WAITFORVSYNC: |
32db7754 | 396 | prepare_to_wait(&itv->vsync_waitq, &wait, TASK_INTERRUPTIBLE); |
84149a0f | 397 | if (!schedule_timeout(msecs_to_jiffies(50))) rc = -ETIMEDOUT; |
be383bd3 | 398 | finish_wait(&itv->vsync_waitq, &wait); |
32db7754 | 399 | return rc; |
32db7754 | 400 | |
d715e766 HV |
401 | case IVTVFB_IOC_DMA_FRAME: { |
402 | struct ivtvfb_dma_frame args; | |
32db7754 | 403 | |
641ed49d | 404 | IVTVFB_DEBUG_INFO("IVTVFB_IOC_DMA_FRAME\n"); |
32db7754 HV |
405 | if (copy_from_user(&args, (void __user *)arg, sizeof(args))) |
406 | return -EFAULT; | |
407 | ||
641ed49d | 408 | return ivtvfb_prep_frame(itv, cmd, args.source, args.dest_offset, args.count); |
32db7754 HV |
409 | } |
410 | ||
411 | default: | |
641ed49d | 412 | IVTVFB_DEBUG_INFO("Unknown ioctl %08x\n", cmd); |
32db7754 HV |
413 | return -EINVAL; |
414 | } | |
415 | return 0; | |
416 | } | |
417 | ||
418 | /* Framebuffer device handling */ | |
419 | ||
420 | static int ivtvfb_set_var(struct ivtv *itv, struct fb_var_screeninfo *var) | |
421 | { | |
aaf9fa21 | 422 | struct osd_info *oi = itv->osd_info; |
32db7754 HV |
423 | struct ivtv_osd_coords ivtv_osd; |
424 | struct v4l2_rect ivtv_window; | |
aaf9fa21 | 425 | int osd_mode = -1; |
32db7754 | 426 | |
641ed49d | 427 | IVTVFB_DEBUG_INFO("ivtvfb_set_var\n"); |
32db7754 HV |
428 | |
429 | /* Select color space */ | |
430 | if (var->nonstd) /* YUV */ | |
be383bd3 | 431 | write_reg(read_reg(0x02a00) | 0x0002000, 0x02a00); |
32db7754 | 432 | else /* RGB */ |
be383bd3 | 433 | write_reg(read_reg(0x02a00) & ~0x0002000, 0x02a00); |
32db7754 | 434 | |
aaf9fa21 | 435 | /* Set the color mode */ |
32db7754 HV |
436 | switch (var->bits_per_pixel) { |
437 | case 8: | |
aaf9fa21 | 438 | osd_mode = IVTV_OSD_BPP_8; |
32db7754 HV |
439 | break; |
440 | case 32: | |
aaf9fa21 | 441 | osd_mode = IVTV_OSD_BPP_32; |
32db7754 HV |
442 | break; |
443 | case 16: | |
444 | switch (var->green.length) { | |
445 | case 4: | |
aaf9fa21 | 446 | osd_mode = IVTV_OSD_BPP_16_444; |
32db7754 HV |
447 | break; |
448 | case 5: | |
aaf9fa21 | 449 | osd_mode = IVTV_OSD_BPP_16_555; |
32db7754 HV |
450 | break; |
451 | case 6: | |
aaf9fa21 | 452 | osd_mode = IVTV_OSD_BPP_16_565; |
32db7754 HV |
453 | break; |
454 | default: | |
641ed49d | 455 | IVTVFB_DEBUG_WARN("ivtvfb_set_var - Invalid bpp\n"); |
32db7754 HV |
456 | } |
457 | break; | |
458 | default: | |
641ed49d | 459 | IVTVFB_DEBUG_WARN("ivtvfb_set_var - Invalid bpp\n"); |
32db7754 HV |
460 | } |
461 | ||
6659e3ed IA |
462 | /* Set video mode. Although rare, the display can become scrambled even |
463 | if we don't change mode. Always 'bounce' to osd_mode via mode 0 */ | |
464 | if (osd_mode != -1) { | |
aaf9fa21 IA |
465 | ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, 0); |
466 | ivtv_vapi(itv, CX2341X_OSD_SET_PIXEL_FORMAT, 1, osd_mode); | |
aaf9fa21 IA |
467 | } |
468 | ||
469 | oi->bits_per_pixel = var->bits_per_pixel; | |
470 | oi->bytes_per_pixel = var->bits_per_pixel / 8; | |
32db7754 HV |
471 | |
472 | /* Set the flicker filter */ | |
473 | switch (var->vmode & FB_VMODE_MASK) { | |
474 | case FB_VMODE_NONINTERLACED: /* Filter on */ | |
475 | ivtv_vapi(itv, CX2341X_OSD_SET_FLICKER_STATE, 1, 1); | |
476 | break; | |
477 | case FB_VMODE_INTERLACED: /* Filter off */ | |
478 | ivtv_vapi(itv, CX2341X_OSD_SET_FLICKER_STATE, 1, 0); | |
479 | break; | |
480 | default: | |
641ed49d | 481 | IVTVFB_DEBUG_WARN("ivtvfb_set_var - Invalid video mode\n"); |
32db7754 HV |
482 | } |
483 | ||
484 | /* Read the current osd info */ | |
641ed49d | 485 | ivtvfb_get_osd_coords(itv, &ivtv_osd); |
32db7754 HV |
486 | |
487 | /* Now set the OSD to the size we want */ | |
488 | ivtv_osd.pixel_stride = var->xres_virtual; | |
489 | ivtv_osd.lines = var->yres_virtual; | |
490 | ivtv_osd.x = 0; | |
491 | ivtv_osd.y = 0; | |
641ed49d | 492 | ivtvfb_set_osd_coords(itv, &ivtv_osd); |
32db7754 HV |
493 | |
494 | /* Can't seem to find the right API combo for this. | |
495 | Use another function which does what we need through direct register access. */ | |
496 | ivtv_window.width = var->xres; | |
497 | ivtv_window.height = var->yres; | |
498 | ||
499 | /* Minimum margin cannot be 0, as X won't allow such a mode */ | |
be383bd3 HV |
500 | if (!var->upper_margin) var->upper_margin++; |
501 | if (!var->left_margin) var->left_margin++; | |
32db7754 HV |
502 | ivtv_window.top = var->upper_margin - 1; |
503 | ivtv_window.left = var->left_margin - 1; | |
504 | ||
641ed49d | 505 | ivtvfb_set_display_window(itv, &ivtv_window); |
32db7754 | 506 | |
77aded6b IA |
507 | /* Pass screen size back to yuv handler */ |
508 | itv->yuv_info.osd_full_w = ivtv_osd.pixel_stride; | |
509 | itv->yuv_info.osd_full_h = ivtv_osd.lines; | |
510 | ||
32db7754 HV |
511 | /* Force update of yuv registers */ |
512 | itv->yuv_info.yuv_forced_update = 1; | |
513 | ||
641ed49d | 514 | IVTVFB_DEBUG_INFO("Display size: %dx%d (virtual %dx%d) @ %dbpp\n", |
be383bd3 HV |
515 | var->xres, var->yres, |
516 | var->xres_virtual, var->yres_virtual, | |
517 | var->bits_per_pixel); | |
32db7754 | 518 | |
641ed49d | 519 | IVTVFB_DEBUG_INFO("Display position: %d, %d\n", |
be383bd3 | 520 | var->left_margin, var->upper_margin); |
32db7754 | 521 | |
641ed49d | 522 | IVTVFB_DEBUG_INFO("Display filter: %s\n", |
be383bd3 | 523 | (var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED ? "on" : "off"); |
641ed49d | 524 | IVTVFB_DEBUG_INFO("Color space: %s\n", var->nonstd ? "YUV" : "RGB"); |
32db7754 HV |
525 | |
526 | return 0; | |
527 | } | |
528 | ||
529 | static int ivtvfb_get_fix(struct ivtv *itv, struct fb_fix_screeninfo *fix) | |
530 | { | |
be383bd3 HV |
531 | struct osd_info *oi = itv->osd_info; |
532 | ||
641ed49d | 533 | IVTVFB_DEBUG_INFO("ivtvfb_get_fix\n"); |
32db7754 | 534 | memset(fix, 0, sizeof(struct fb_fix_screeninfo)); |
cebfadff | 535 | strlcpy(fix->id, "cx23415 TV out", sizeof(fix->id)); |
be383bd3 HV |
536 | fix->smem_start = oi->video_pbase; |
537 | fix->smem_len = oi->video_buffer_size; | |
32db7754 | 538 | fix->type = FB_TYPE_PACKED_PIXELS; |
be383bd3 | 539 | fix->visual = (oi->bits_per_pixel == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR; |
32db7754 HV |
540 | fix->xpanstep = 1; |
541 | fix->ypanstep = 1; | |
542 | fix->ywrapstep = 0; | |
be383bd3 | 543 | fix->line_length = oi->display_byte_stride; |
32db7754 HV |
544 | fix->accel = FB_ACCEL_NONE; |
545 | return 0; | |
546 | } | |
547 | ||
548 | /* Check the requested display mode, returning -EINVAL if we can't | |
549 | handle it. */ | |
550 | ||
551 | static int _ivtvfb_check_var(struct fb_var_screeninfo *var, struct ivtv *itv) | |
552 | { | |
be383bd3 | 553 | struct osd_info *oi = itv->osd_info; |
68a341a5 IA |
554 | int osd_height_limit; |
555 | u32 pixclock, hlimit, vlimit; | |
32db7754 | 556 | |
641ed49d | 557 | IVTVFB_DEBUG_INFO("ivtvfb_check_var\n"); |
32db7754 | 558 | |
68a341a5 IA |
559 | /* Set base references for mode calcs. */ |
560 | if (itv->is_50hz) { | |
561 | pixclock = 84316; | |
562 | hlimit = 776; | |
563 | vlimit = 591; | |
564 | osd_height_limit = 576; | |
565 | } | |
566 | else { | |
567 | pixclock = 83926; | |
568 | hlimit = 776; | |
569 | vlimit = 495; | |
570 | osd_height_limit = 480; | |
571 | } | |
572 | ||
32db7754 HV |
573 | if (var->bits_per_pixel == 8 || var->bits_per_pixel == 32) { |
574 | var->transp.offset = 24; | |
575 | var->transp.length = 8; | |
576 | var->red.offset = 16; | |
577 | var->red.length = 8; | |
578 | var->green.offset = 8; | |
579 | var->green.length = 8; | |
580 | var->blue.offset = 0; | |
581 | var->blue.length = 8; | |
582 | } | |
583 | else if (var->bits_per_pixel == 16) { | |
584 | /* To find out the true mode, check green length */ | |
585 | switch (var->green.length) { | |
586 | case 4: | |
32db7754 HV |
587 | var->red.offset = 8; |
588 | var->red.length = 4; | |
589 | var->green.offset = 4; | |
590 | var->green.length = 4; | |
591 | var->blue.offset = 0; | |
592 | var->blue.length = 4; | |
459a52fa HV |
593 | var->transp.offset = 12; |
594 | var->transp.length = 1; | |
32db7754 HV |
595 | break; |
596 | case 5: | |
32db7754 HV |
597 | var->red.offset = 10; |
598 | var->red.length = 5; | |
599 | var->green.offset = 5; | |
600 | var->green.length = 5; | |
601 | var->blue.offset = 0; | |
602 | var->blue.length = 5; | |
459a52fa HV |
603 | var->transp.offset = 15; |
604 | var->transp.length = 1; | |
32db7754 HV |
605 | break; |
606 | default: | |
32db7754 HV |
607 | var->red.offset = 11; |
608 | var->red.length = 5; | |
609 | var->green.offset = 5; | |
610 | var->green.length = 6; | |
611 | var->blue.offset = 0; | |
612 | var->blue.length = 5; | |
459a52fa HV |
613 | var->transp.offset = 0; |
614 | var->transp.length = 0; | |
32db7754 HV |
615 | break; |
616 | } | |
617 | } | |
618 | else { | |
641ed49d | 619 | IVTVFB_DEBUG_WARN("Invalid colour mode: %d\n", var->bits_per_pixel); |
32db7754 HV |
620 | return -EINVAL; |
621 | } | |
622 | ||
623 | /* Check the resolution */ | |
6b1ec9da IA |
624 | if (var->xres > IVTV_OSD_MAX_WIDTH || var->yres > osd_height_limit) { |
625 | IVTVFB_DEBUG_WARN("Invalid resolution: %dx%d\n", | |
626 | var->xres, var->yres); | |
627 | return -EINVAL; | |
32db7754 | 628 | } |
32db7754 | 629 | |
6b1ec9da IA |
630 | /* Max horizontal size is 1023 @ 32bpp, 2046 & 16bpp, 4092 @ 8bpp */ |
631 | if (var->xres_virtual > 4095 / (var->bits_per_pixel / 8) || | |
632 | var->xres_virtual * var->yres_virtual * (var->bits_per_pixel / 8) > oi->video_buffer_size || | |
633 | var->xres_virtual < var->xres || | |
634 | var->yres_virtual < var->yres) { | |
635 | IVTVFB_DEBUG_WARN("Invalid virtual resolution: %dx%d\n", | |
636 | var->xres_virtual, var->yres_virtual); | |
637 | return -EINVAL; | |
32db7754 HV |
638 | } |
639 | ||
640 | /* Some extra checks if in 8 bit mode */ | |
641 | if (var->bits_per_pixel == 8) { | |
642 | /* Width must be a multiple of 4 */ | |
643 | if (var->xres & 3) { | |
641ed49d | 644 | IVTVFB_DEBUG_WARN("Invalid resolution for 8bpp: %d\n", var->xres); |
32db7754 HV |
645 | return -EINVAL; |
646 | } | |
647 | if (var->xres_virtual & 3) { | |
641ed49d | 648 | IVTVFB_DEBUG_WARN("Invalid virtual resolution for 8bpp: %d)\n", var->xres_virtual); |
32db7754 HV |
649 | return -EINVAL; |
650 | } | |
651 | } | |
652 | else if (var->bits_per_pixel == 16) { | |
653 | /* Width must be a multiple of 2 */ | |
654 | if (var->xres & 1) { | |
641ed49d | 655 | IVTVFB_DEBUG_WARN("Invalid resolution for 16bpp: %d\n", var->xres); |
32db7754 HV |
656 | return -EINVAL; |
657 | } | |
658 | if (var->xres_virtual & 1) { | |
641ed49d | 659 | IVTVFB_DEBUG_WARN("Invalid virtual resolution for 16bpp: %d)\n", var->xres_virtual); |
32db7754 HV |
660 | return -EINVAL; |
661 | } | |
662 | } | |
663 | ||
664 | /* Now check the offsets */ | |
665 | if (var->xoffset >= var->xres_virtual || var->yoffset >= var->yres_virtual) { | |
641ed49d | 666 | IVTVFB_DEBUG_WARN("Invalid offset: %d (%d) %d (%d)\n", |
be383bd3 | 667 | var->xoffset, var->xres_virtual, var->yoffset, var->yres_virtual); |
32db7754 HV |
668 | return -EINVAL; |
669 | } | |
670 | ||
671 | /* Check pixel format */ | |
672 | if (var->nonstd > 1) { | |
641ed49d | 673 | IVTVFB_DEBUG_WARN("Invalid nonstd % d\n", var->nonstd); |
32db7754 HV |
674 | return -EINVAL; |
675 | } | |
676 | ||
677 | /* Check video mode */ | |
678 | if (((var->vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED) && | |
679 | ((var->vmode & FB_VMODE_MASK) != FB_VMODE_INTERLACED)) { | |
641ed49d | 680 | IVTVFB_DEBUG_WARN("Invalid video mode: %d\n", var->vmode & FB_VMODE_MASK); |
32db7754 HV |
681 | return -EINVAL; |
682 | } | |
683 | ||
684 | /* Check the left & upper margins | |
685 | If the margins are too large, just center the screen | |
686 | (enforcing margins causes too many problems) */ | |
687 | ||
688 | if (var->left_margin + var->xres > IVTV_OSD_MAX_WIDTH + 1) { | |
689 | var->left_margin = 1 + ((IVTV_OSD_MAX_WIDTH - var->xres) / 2); | |
690 | } | |
691 | if (var->upper_margin + var->yres > (itv->is_50hz ? 577 : 481)) { | |
692 | var->upper_margin = 1 + (((itv->is_50hz ? 576 : 480) - var->yres) / 2); | |
693 | } | |
694 | ||
695 | /* Maintain overall 'size' for a constant refresh rate */ | |
68a341a5 IA |
696 | var->right_margin = hlimit - var->left_margin - var->xres; |
697 | var->lower_margin = vlimit - var->upper_margin - var->yres; | |
32db7754 HV |
698 | |
699 | /* Fixed sync times */ | |
700 | var->hsync_len = 24; | |
701 | var->vsync_len = 2; | |
702 | ||
703 | /* Non-interlaced / interlaced mode is used to switch the OSD filter | |
704 | on or off. Adjust the clock timings to maintain a constant | |
705 | vertical refresh rate. */ | |
32db7754 | 706 | if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) |
68a341a5 IA |
707 | var->pixclock = pixclock / 2; |
708 | else | |
709 | var->pixclock = pixclock; | |
32db7754 | 710 | |
641ed49d | 711 | IVTVFB_DEBUG_INFO("Display size: %dx%d (virtual %dx%d) @ %dbpp\n", |
be383bd3 HV |
712 | var->xres, var->yres, |
713 | var->xres_virtual, var->yres_virtual, | |
32db7754 HV |
714 | var->bits_per_pixel); |
715 | ||
641ed49d | 716 | IVTVFB_DEBUG_INFO("Display position: %d, %d\n", |
be383bd3 | 717 | var->left_margin, var->upper_margin); |
32db7754 | 718 | |
641ed49d | 719 | IVTVFB_DEBUG_INFO("Display filter: %s\n", |
be383bd3 | 720 | (var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED ? "on" : "off"); |
641ed49d | 721 | IVTVFB_DEBUG_INFO("Color space: %s\n", var->nonstd ? "YUV" : "RGB"); |
32db7754 HV |
722 | return 0; |
723 | } | |
724 | ||
725 | static int ivtvfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) | |
726 | { | |
727 | struct ivtv *itv = (struct ivtv *) info->par; | |
641ed49d | 728 | IVTVFB_DEBUG_INFO("ivtvfb_check_var\n"); |
be383bd3 | 729 | return _ivtvfb_check_var(var, itv); |
32db7754 HV |
730 | } |
731 | ||
732 | static int ivtvfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) | |
733 | { | |
734 | u32 osd_pan_index; | |
735 | struct ivtv *itv = (struct ivtv *) info->par; | |
736 | ||
737 | osd_pan_index = (var->xoffset + (var->yoffset * var->xres_virtual))*var->bits_per_pixel/8; | |
be383bd3 | 738 | write_reg(osd_pan_index, 0x02A0C); |
32db7754 HV |
739 | |
740 | /* Pass this info back the yuv handler */ | |
741 | itv->yuv_info.osd_x_pan = var->xoffset; | |
742 | itv->yuv_info.osd_y_pan = var->yoffset; | |
743 | /* Force update of yuv registers */ | |
744 | itv->yuv_info.yuv_forced_update = 1; | |
745 | return 0; | |
746 | } | |
747 | ||
748 | static int ivtvfb_set_par(struct fb_info *info) | |
749 | { | |
750 | int rc = 0; | |
751 | struct ivtv *itv = (struct ivtv *) info->par; | |
752 | ||
641ed49d | 753 | IVTVFB_DEBUG_INFO("ivtvfb_set_par\n"); |
32db7754 HV |
754 | |
755 | rc = ivtvfb_set_var(itv, &info->var); | |
756 | ivtvfb_pan_display(&info->var, info); | |
be383bd3 | 757 | ivtvfb_get_fix(itv, &info->fix); |
32db7754 HV |
758 | return rc; |
759 | } | |
760 | ||
761 | static int ivtvfb_setcolreg(unsigned regno, unsigned red, unsigned green, | |
762 | unsigned blue, unsigned transp, | |
763 | struct fb_info *info) | |
764 | { | |
765 | u32 color, *palette; | |
be383bd3 | 766 | struct ivtv *itv = (struct ivtv *)info->par; |
32db7754 HV |
767 | |
768 | if (regno >= info->cmap.len) | |
769 | return -EINVAL; | |
770 | ||
771 | color = ((transp & 0xFF00) << 16) |((red & 0xFF00) << 8) | (green & 0xFF00) | ((blue & 0xFF00) >> 8); | |
772 | if (info->var.bits_per_pixel <= 8) { | |
773 | write_reg(regno, 0x02a30); | |
774 | write_reg(color, 0x02a34); | |
be383bd3 | 775 | return 0; |
32db7754 | 776 | } |
be383bd3 HV |
777 | if (regno >= 16) |
778 | return -EINVAL; | |
32db7754 | 779 | |
be383bd3 HV |
780 | palette = info->pseudo_palette; |
781 | if (info->var.bits_per_pixel == 16) { | |
782 | switch (info->var.green.length) { | |
783 | case 4: | |
784 | color = ((red & 0xf000) >> 4) | | |
785 | ((green & 0xf000) >> 8) | | |
786 | ((blue & 0xf000) >> 12); | |
787 | break; | |
788 | case 5: | |
789 | color = ((red & 0xf800) >> 1) | | |
790 | ((green & 0xf800) >> 6) | | |
791 | ((blue & 0xf800) >> 11); | |
792 | break; | |
793 | case 6: | |
794 | color = (red & 0xf800 ) | | |
795 | ((green & 0xfc00) >> 5) | | |
796 | ((blue & 0xf800) >> 11); | |
797 | break; | |
32db7754 | 798 | } |
32db7754 | 799 | } |
be383bd3 | 800 | palette[regno] = color; |
32db7754 HV |
801 | return 0; |
802 | } | |
803 | ||
804 | /* We don't really support blanking. All this does is enable or | |
805 | disable the OSD. */ | |
806 | static int ivtvfb_blank(int blank_mode, struct fb_info *info) | |
807 | { | |
808 | struct ivtv *itv = (struct ivtv *)info->par; | |
809 | ||
641ed49d | 810 | IVTVFB_DEBUG_INFO("Set blanking mode : %d\n", blank_mode); |
32db7754 HV |
811 | switch (blank_mode) { |
812 | case FB_BLANK_UNBLANK: | |
813 | ivtv_vapi(itv, CX2341X_OSD_SET_STATE, 1, 1); | |
814 | break; | |
815 | case FB_BLANK_NORMAL: | |
816 | case FB_BLANK_HSYNC_SUSPEND: | |
817 | case FB_BLANK_VSYNC_SUSPEND: | |
818 | case FB_BLANK_POWERDOWN: | |
819 | ivtv_vapi(itv, CX2341X_OSD_SET_STATE, 1, 0); | |
820 | break; | |
821 | } | |
822 | return 0; | |
823 | } | |
824 | ||
825 | static struct fb_ops ivtvfb_ops = { | |
826 | .owner = THIS_MODULE, | |
827 | .fb_check_var = ivtvfb_check_var, | |
828 | .fb_set_par = ivtvfb_set_par, | |
829 | .fb_setcolreg = ivtvfb_setcolreg, | |
830 | .fb_fillrect = cfb_fillrect, | |
831 | .fb_copyarea = cfb_copyarea, | |
832 | .fb_imageblit = cfb_imageblit, | |
833 | .fb_cursor = NULL, | |
834 | .fb_ioctl = ivtvfb_ioctl, | |
835 | .fb_pan_display = ivtvfb_pan_display, | |
836 | .fb_blank = ivtvfb_blank, | |
837 | }; | |
838 | ||
839 | /* Initialization */ | |
840 | ||
841 | ||
842 | /* Setup our initial video mode */ | |
843 | static int ivtvfb_init_vidmode(struct ivtv *itv) | |
844 | { | |
be383bd3 | 845 | struct osd_info *oi = itv->osd_info; |
32db7754 | 846 | struct v4l2_rect start_window; |
be383bd3 | 847 | int max_height; |
32db7754 | 848 | |
32db7754 HV |
849 | /* Color mode */ |
850 | ||
6b1ec9da IA |
851 | if (osd_depth != 8 && osd_depth != 16 && osd_depth != 32) |
852 | osd_depth = 8; | |
be383bd3 HV |
853 | oi->bits_per_pixel = osd_depth; |
854 | oi->bytes_per_pixel = oi->bits_per_pixel / 8; | |
32db7754 HV |
855 | |
856 | /* Horizontal size & position */ | |
857 | ||
6b1ec9da IA |
858 | if (osd_xres > 720) |
859 | osd_xres = 720; | |
32db7754 HV |
860 | |
861 | /* Must be a multiple of 4 for 8bpp & 2 for 16bpp */ | |
862 | if (osd_depth == 8) | |
863 | osd_xres &= ~3; | |
864 | else if (osd_depth == 16) | |
865 | osd_xres &= ~1; | |
866 | ||
6b1ec9da | 867 | start_window.width = osd_xres ? osd_xres : 640; |
32db7754 HV |
868 | |
869 | /* Check horizontal start (osd_left). */ | |
870 | if (osd_left && osd_left + start_window.width > 721) { | |
641ed49d | 871 | IVTVFB_ERR("Invalid osd_left - assuming default\n"); |
32db7754 HV |
872 | osd_left = 0; |
873 | } | |
874 | ||
875 | /* Hardware coords start at 0, user coords start at 1. */ | |
be383bd3 | 876 | osd_left--; |
32db7754 | 877 | |
be383bd3 | 878 | start_window.left = osd_left >= 0 ? osd_left : ((IVTV_OSD_MAX_WIDTH - start_window.width) / 2); |
32db7754 | 879 | |
be383bd3 HV |
880 | oi->display_byte_stride = |
881 | start_window.width * oi->bytes_per_pixel; | |
32db7754 HV |
882 | |
883 | /* Vertical size & position */ | |
884 | ||
885 | max_height = itv->is_50hz ? 576 : 480; | |
886 | ||
be383bd3 HV |
887 | if (osd_yres > max_height) |
888 | osd_yres = max_height; | |
32db7754 | 889 | |
6b1ec9da | 890 | start_window.height = osd_yres ? osd_yres : itv->is_50hz ? 480 : 400; |
32db7754 HV |
891 | |
892 | /* Check vertical start (osd_upper). */ | |
893 | if (osd_upper + start_window.height > max_height + 1) { | |
641ed49d | 894 | IVTVFB_ERR("Invalid osd_upper - assuming default\n"); |
32db7754 HV |
895 | osd_upper = 0; |
896 | } | |
897 | ||
898 | /* Hardware coords start at 0, user coords start at 1. */ | |
be383bd3 | 899 | osd_upper--; |
32db7754 HV |
900 | |
901 | start_window.top = osd_upper >= 0 ? osd_upper : ((max_height - start_window.height) / 2); | |
902 | ||
be383bd3 HV |
903 | oi->display_width = start_window.width; |
904 | oi->display_height = start_window.height; | |
32db7754 HV |
905 | |
906 | /* Generate a valid fb_var_screeninfo */ | |
907 | ||
be383bd3 HV |
908 | oi->ivtvfb_defined.xres = oi->display_width; |
909 | oi->ivtvfb_defined.yres = oi->display_height; | |
910 | oi->ivtvfb_defined.xres_virtual = oi->display_width; | |
911 | oi->ivtvfb_defined.yres_virtual = oi->display_height; | |
912 | oi->ivtvfb_defined.bits_per_pixel = oi->bits_per_pixel; | |
913 | oi->ivtvfb_defined.vmode = (osd_laced ? FB_VMODE_INTERLACED : FB_VMODE_NONINTERLACED); | |
914 | oi->ivtvfb_defined.left_margin = start_window.left + 1; | |
915 | oi->ivtvfb_defined.upper_margin = start_window.top + 1; | |
916 | oi->ivtvfb_defined.accel_flags = FB_ACCEL_NONE; | |
917 | oi->ivtvfb_defined.nonstd = 0; | |
32db7754 HV |
918 | |
919 | /* We've filled in the most data, let the usual mode check | |
920 | routine fill in the rest. */ | |
be383bd3 | 921 | _ivtvfb_check_var(&oi->ivtvfb_defined, itv); |
32db7754 HV |
922 | |
923 | /* Generate valid fb_fix_screeninfo */ | |
924 | ||
be383bd3 | 925 | ivtvfb_get_fix(itv, &oi->ivtvfb_fix); |
32db7754 HV |
926 | |
927 | /* Generate valid fb_info */ | |
928 | ||
be383bd3 HV |
929 | oi->ivtvfb_info.node = -1; |
930 | oi->ivtvfb_info.flags = FBINFO_FLAG_DEFAULT; | |
931 | oi->ivtvfb_info.fbops = &ivtvfb_ops; | |
932 | oi->ivtvfb_info.par = itv; | |
933 | oi->ivtvfb_info.var = oi->ivtvfb_defined; | |
934 | oi->ivtvfb_info.fix = oi->ivtvfb_fix; | |
935 | oi->ivtvfb_info.screen_base = (u8 __iomem *)oi->video_vbase; | |
936 | oi->ivtvfb_info.fbops = &ivtvfb_ops; | |
32db7754 HV |
937 | |
938 | /* Supply some monitor specs. Bogus values will do for now */ | |
be383bd3 HV |
939 | oi->ivtvfb_info.monspecs.hfmin = 8000; |
940 | oi->ivtvfb_info.monspecs.hfmax = 70000; | |
941 | oi->ivtvfb_info.monspecs.vfmin = 10; | |
942 | oi->ivtvfb_info.monspecs.vfmax = 100; | |
32db7754 HV |
943 | |
944 | /* Allocate color map */ | |
be383bd3 | 945 | if (fb_alloc_cmap(&oi->ivtvfb_info.cmap, 256, 1)) { |
641ed49d | 946 | IVTVFB_ERR("abort, unable to alloc cmap\n"); |
32db7754 HV |
947 | return -ENOMEM; |
948 | } | |
949 | ||
950 | /* Allocate the pseudo palette */ | |
be383bd3 | 951 | oi->ivtvfb_info.pseudo_palette = kmalloc(sizeof(u32) * 16, GFP_KERNEL); |
32db7754 | 952 | |
be383bd3 | 953 | if (!oi->ivtvfb_info.pseudo_palette) { |
641ed49d | 954 | IVTVFB_ERR("abort, unable to alloc pseudo pallete\n"); |
32db7754 HV |
955 | return -ENOMEM; |
956 | } | |
957 | ||
958 | return 0; | |
959 | } | |
960 | ||
961 | /* Find OSD buffer base & size. Add to mtrr. Zero osd buffer. */ | |
962 | ||
963 | static int ivtvfb_init_io(struct ivtv *itv) | |
964 | { | |
be383bd3 HV |
965 | struct osd_info *oi = itv->osd_info; |
966 | ||
26e9d599 | 967 | mutex_lock(&itv->serialize_lock); |
6e5eb591 | 968 | if (ivtv_init_on_first_open(itv)) { |
26e9d599 | 969 | mutex_unlock(&itv->serialize_lock); |
641ed49d | 970 | IVTVFB_ERR("Failed to initialize ivtv\n"); |
6e5eb591 HV |
971 | return -ENXIO; |
972 | } | |
26e9d599 | 973 | mutex_unlock(&itv->serialize_lock); |
6e5eb591 | 974 | |
641ed49d | 975 | ivtvfb_get_framebuffer(itv, &oi->video_rbase, &oi->video_buffer_size); |
32db7754 HV |
976 | |
977 | /* The osd buffer size depends on the number of video buffers allocated | |
978 | on the PVR350 itself. For now we'll hardcode the smallest osd buffer | |
979 | size to prevent any overlap. */ | |
be383bd3 | 980 | oi->video_buffer_size = 1704960; |
32db7754 | 981 | |
be383bd3 HV |
982 | oi->video_pbase = itv->base_addr + IVTV_DECODER_OFFSET + oi->video_rbase; |
983 | oi->video_vbase = itv->dec_mem + oi->video_rbase; | |
32db7754 | 984 | |
be383bd3 | 985 | if (!oi->video_vbase) { |
641ed49d | 986 | IVTVFB_ERR("abort, video memory 0x%x @ 0x%lx isn't mapped!\n", |
be383bd3 | 987 | oi->video_buffer_size, oi->video_pbase); |
32db7754 HV |
988 | return -EIO; |
989 | } | |
990 | ||
641ed49d | 991 | IVTVFB_INFO("Framebuffer at 0x%lx, mapped to 0x%p, size %dk\n", |
be383bd3 HV |
992 | oi->video_pbase, oi->video_vbase, |
993 | oi->video_buffer_size / 1024); | |
32db7754 HV |
994 | |
995 | #ifdef CONFIG_MTRR | |
996 | { | |
997 | /* Find the largest power of two that maps the whole buffer */ | |
998 | int size_shift = 31; | |
999 | ||
be383bd3 | 1000 | while (!(oi->video_buffer_size & (1 << size_shift))) { |
32db7754 HV |
1001 | size_shift--; |
1002 | } | |
1003 | size_shift++; | |
be383bd3 HV |
1004 | oi->fb_start_aligned_physaddr = oi->video_pbase & ~((1 << size_shift) - 1); |
1005 | oi->fb_end_aligned_physaddr = oi->video_pbase + oi->video_buffer_size; | |
1006 | oi->fb_end_aligned_physaddr += (1 << size_shift) - 1; | |
1007 | oi->fb_end_aligned_physaddr &= ~((1 << size_shift) - 1); | |
1008 | if (mtrr_add(oi->fb_start_aligned_physaddr, | |
1009 | oi->fb_end_aligned_physaddr - oi->fb_start_aligned_physaddr, | |
32db7754 | 1010 | MTRR_TYPE_WRCOMB, 1) < 0) { |
641ed49d | 1011 | IVTVFB_INFO("disabled mttr\n"); |
be383bd3 HV |
1012 | oi->fb_start_aligned_physaddr = 0; |
1013 | oi->fb_end_aligned_physaddr = 0; | |
32db7754 HV |
1014 | } |
1015 | } | |
be383bd3 | 1016 | #endif |
32db7754 HV |
1017 | |
1018 | /* Blank the entire osd. */ | |
be383bd3 | 1019 | memset_io(oi->video_vbase, 0, oi->video_buffer_size); |
32db7754 HV |
1020 | |
1021 | return 0; | |
1022 | } | |
1023 | ||
1024 | /* Release any memory we've grabbed & remove mtrr entry */ | |
1025 | static void ivtvfb_release_buffers (struct ivtv *itv) | |
1026 | { | |
be383bd3 HV |
1027 | struct osd_info *oi = itv->osd_info; |
1028 | ||
32db7754 | 1029 | /* Release cmap */ |
13628032 AB |
1030 | if (oi->ivtvfb_info.cmap.len) |
1031 | fb_dealloc_cmap(&oi->ivtvfb_info.cmap); | |
32db7754 HV |
1032 | |
1033 | /* Release pseudo palette */ | |
be383bd3 HV |
1034 | if (oi->ivtvfb_info.pseudo_palette) |
1035 | kfree(oi->ivtvfb_info.pseudo_palette); | |
32db7754 HV |
1036 | |
1037 | #ifdef CONFIG_MTRR | |
be383bd3 HV |
1038 | if (oi->fb_end_aligned_physaddr) { |
1039 | mtrr_del(-1, oi->fb_start_aligned_physaddr, | |
1040 | oi->fb_end_aligned_physaddr - oi->fb_start_aligned_physaddr); | |
1041 | } | |
1042 | #endif | |
32db7754 | 1043 | |
be383bd3 | 1044 | kfree(oi); |
32db7754 HV |
1045 | itv->osd_info = NULL; |
1046 | } | |
1047 | ||
1048 | /* Initialize the specified card */ | |
1049 | ||
be383bd3 | 1050 | static int ivtvfb_init_card(struct ivtv *itv) |
32db7754 HV |
1051 | { |
1052 | int rc; | |
1053 | ||
1054 | if (itv->osd_info) { | |
641ed49d | 1055 | IVTVFB_ERR("Card %d already initialised\n", ivtvfb_card_id); |
32db7754 HV |
1056 | return -EBUSY; |
1057 | } | |
1058 | ||
1059 | itv->osd_info = kzalloc(sizeof(struct osd_info), GFP_ATOMIC); | |
14d5deba | 1060 | if (itv->osd_info == NULL) { |
641ed49d | 1061 | IVTVFB_ERR("Failed to allocate memory for osd_info\n"); |
32db7754 HV |
1062 | return -ENOMEM; |
1063 | } | |
1064 | ||
1065 | /* Find & setup the OSD buffer */ | |
be383bd3 | 1066 | if ((rc = ivtvfb_init_io(itv))) |
32db7754 HV |
1067 | return rc; |
1068 | ||
1069 | /* Set the startup video mode information */ | |
be383bd3 | 1070 | if ((rc = ivtvfb_init_vidmode(itv))) { |
32db7754 HV |
1071 | ivtvfb_release_buffers(itv); |
1072 | return rc; | |
1073 | } | |
1074 | ||
1075 | /* Register the framebuffer */ | |
1076 | if (register_framebuffer(&itv->osd_info->ivtvfb_info) < 0) { | |
1077 | ivtvfb_release_buffers(itv); | |
1078 | return -EINVAL; | |
1079 | } | |
1080 | ||
1081 | itv->osd_video_pbase = itv->osd_info->video_pbase; | |
1082 | ||
1083 | /* Set the card to the requested mode */ | |
1084 | ivtvfb_set_par(&itv->osd_info->ivtvfb_info); | |
1085 | ||
1086 | /* Set color 0 to black */ | |
1087 | write_reg(0, 0x02a30); | |
1088 | write_reg(0, 0x02a34); | |
1089 | ||
1090 | /* Enable the osd */ | |
1091 | ivtvfb_blank(FB_BLANK_UNBLANK, &itv->osd_info->ivtvfb_info); | |
1092 | ||
32db7754 HV |
1093 | /* Allocate DMA */ |
1094 | ivtv_udma_alloc(itv); | |
1095 | return 0; | |
1096 | ||
1097 | } | |
1098 | ||
1099 | static int __init ivtvfb_init(void) | |
1100 | { | |
1101 | struct ivtv *itv; | |
1102 | int i, registered = 0; | |
1103 | ||
641ed49d HV |
1104 | if (ivtvfb_card_id < -1 || ivtvfb_card_id >= IVTV_MAX_CARDS) { |
1105 | printk(KERN_ERR "ivtvfb: ivtvfb_card_id parameter is out of range (valid range: -1 - %d)\n", | |
32db7754 HV |
1106 | IVTV_MAX_CARDS - 1); |
1107 | return -EINVAL; | |
1108 | } | |
1109 | ||
1110 | /* Locate & initialise all cards supporting an OSD. */ | |
1111 | for (i = 0; i < ivtv_cards_active; i++) { | |
641ed49d | 1112 | if (ivtvfb_card_id != -1 && i != ivtvfb_card_id) |
32db7754 HV |
1113 | continue; |
1114 | itv = ivtv_cards[i]; | |
1115 | if (itv && (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) { | |
1116 | if (ivtvfb_init_card(itv) == 0) { | |
641ed49d | 1117 | IVTVFB_INFO("Framebuffer registered on ivtv card id %d\n", i); |
32db7754 HV |
1118 | registered++; |
1119 | } | |
1120 | } | |
1121 | } | |
1122 | if (!registered) { | |
7b3a0d49 | 1123 | printk(KERN_ERR "ivtvfb: no cards found"); |
32db7754 HV |
1124 | return -ENODEV; |
1125 | } | |
1126 | return 0; | |
1127 | } | |
1128 | ||
1129 | static void ivtvfb_cleanup(void) | |
1130 | { | |
1131 | struct ivtv *itv; | |
1132 | int i; | |
1133 | ||
7b3a0d49 | 1134 | printk(KERN_INFO "ivtvfb: Unloading framebuffer module\n"); |
32db7754 HV |
1135 | |
1136 | for (i = 0; i < ivtv_cards_active; i++) { | |
1137 | itv = ivtv_cards[i]; | |
1138 | if (itv && (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) && itv->osd_info) { | |
d343d7f9 HV |
1139 | if (unregister_framebuffer(&itv->osd_info->ivtvfb_info)) { |
1140 | IVTVFB_WARN("Framebuffer %d is in use, cannot unload\n", i); | |
1141 | return; | |
1142 | } | |
641ed49d | 1143 | IVTVFB_DEBUG_INFO("Unregister framebuffer %d\n", i); |
32db7754 | 1144 | ivtvfb_blank(FB_BLANK_POWERDOWN, &itv->osd_info->ivtvfb_info); |
32db7754 HV |
1145 | ivtvfb_release_buffers(itv); |
1146 | itv->osd_video_pbase = 0; | |
1147 | } | |
1148 | } | |
1149 | } | |
1150 | ||
1151 | module_init(ivtvfb_init); | |
1152 | module_exit(ivtvfb_cleanup); |