]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* drivers/video/pvr2fb.c |
2 | * | |
3 | * Frame buffer and fbcon support for the NEC PowerVR2 found within the Sega | |
4 | * Dreamcast. | |
5 | * | |
6 | * Copyright (c) 2001 M. R. Brown <mrbrown@0xd6.org> | |
7 | * Copyright (c) 2001, 2002, 2003, 2004, 2005 Paul Mundt <lethal@linux-sh.org> | |
8 | * | |
9 | * This file is part of the LinuxDC project (linuxdc.sourceforge.net). | |
10 | * | |
11 | */ | |
12 | ||
13 | /* | |
14 | * This driver is mostly based on the excellent amifb and vfb sources. It uses | |
15 | * an odd scheme for converting hardware values to/from framebuffer values, | |
16 | * here are some hacked-up formulas: | |
17 | * | |
18 | * The Dreamcast has screen offsets from each side of its four borders and | |
19 | * the start offsets of the display window. I used these values to calculate | |
20 | * 'pseudo' values (think of them as placeholders) for the fb video mode, so | |
21 | * that when it came time to convert these values back into their hardware | |
22 | * values, I could just add mode- specific offsets to get the correct mode | |
23 | * settings: | |
24 | * | |
25 | * left_margin = diwstart_h - borderstart_h; | |
26 | * right_margin = borderstop_h - (diwstart_h + xres); | |
27 | * upper_margin = diwstart_v - borderstart_v; | |
28 | * lower_margin = borderstop_v - (diwstart_h + yres); | |
29 | * | |
30 | * hsync_len = borderstart_h + (hsync_total - borderstop_h); | |
31 | * vsync_len = borderstart_v + (vsync_total - borderstop_v); | |
32 | * | |
33 | * Then, when it's time to convert back to hardware settings, the only | |
34 | * constants are the borderstart_* offsets, all other values are derived from | |
35 | * the fb video mode: | |
36 | * | |
37 | * // PAL | |
38 | * borderstart_h = 116; | |
39 | * borderstart_v = 44; | |
40 | * ... | |
41 | * borderstop_h = borderstart_h + hsync_total - hsync_len; | |
42 | * ... | |
43 | * diwstart_v = borderstart_v - upper_margin; | |
44 | * | |
45 | * However, in the current implementation, the borderstart values haven't had | |
46 | * the benefit of being fully researched, so some modes may be broken. | |
47 | */ | |
48 | ||
49 | #undef DEBUG | |
50 | ||
51 | #include <linux/module.h> | |
52 | #include <linux/kernel.h> | |
53 | #include <linux/errno.h> | |
54 | #include <linux/string.h> | |
55 | #include <linux/mm.h> | |
1da177e4 LT |
56 | #include <linux/slab.h> |
57 | #include <linux/delay.h> | |
1da177e4 LT |
58 | #include <linux/interrupt.h> |
59 | #include <linux/fb.h> | |
60 | #include <linux/init.h> | |
61 | #include <linux/pci.h> | |
62 | ||
63 | #ifdef CONFIG_SH_DREAMCAST | |
64 | #include <asm/machvec.h> | |
65 | #include <asm/mach/sysasic.h> | |
66 | #endif | |
67 | ||
68 | #ifdef CONFIG_SH_DMA | |
69 | #include <linux/pagemap.h> | |
70 | #include <asm/mach/dma.h> | |
71 | #include <asm/dma.h> | |
72 | #endif | |
73 | ||
74 | #ifdef CONFIG_SH_STORE_QUEUES | |
75 | #include <asm/uaccess.h> | |
76 | #include <asm/cpu/sq.h> | |
77 | #endif | |
78 | ||
79 | #ifndef PCI_DEVICE_ID_NEC_NEON250 | |
80 | # define PCI_DEVICE_ID_NEC_NEON250 0x0067 | |
81 | #endif | |
82 | ||
83 | /* 2D video registers */ | |
84 | #define DISP_BASE par->mmio_base | |
85 | #define DISP_BRDRCOLR (DISP_BASE + 0x40) | |
86 | #define DISP_DIWMODE (DISP_BASE + 0x44) | |
87 | #define DISP_DIWADDRL (DISP_BASE + 0x50) | |
88 | #define DISP_DIWADDRS (DISP_BASE + 0x54) | |
89 | #define DISP_DIWSIZE (DISP_BASE + 0x5c) | |
90 | #define DISP_SYNCCONF (DISP_BASE + 0xd0) | |
91 | #define DISP_BRDRHORZ (DISP_BASE + 0xd4) | |
92 | #define DISP_SYNCSIZE (DISP_BASE + 0xd8) | |
93 | #define DISP_BRDRVERT (DISP_BASE + 0xdc) | |
94 | #define DISP_DIWCONF (DISP_BASE + 0xe8) | |
95 | #define DISP_DIWHSTRT (DISP_BASE + 0xec) | |
96 | #define DISP_DIWVSTRT (DISP_BASE + 0xf0) | |
97 | ||
98 | /* Pixel clocks, one for TV output, doubled for VGA output */ | |
99 | #define TV_CLK 74239 | |
100 | #define VGA_CLK 37119 | |
101 | ||
102 | /* This is for 60Hz - the VTOTAL is doubled for interlaced modes */ | |
103 | #define PAL_HTOTAL 863 | |
104 | #define PAL_VTOTAL 312 | |
105 | #define NTSC_HTOTAL 857 | |
106 | #define NTSC_VTOTAL 262 | |
107 | ||
108 | /* Supported cable types */ | |
109 | enum { CT_VGA, CT_NONE, CT_RGB, CT_COMPOSITE }; | |
110 | ||
111 | /* Supported video output types */ | |
112 | enum { VO_PAL, VO_NTSC, VO_VGA }; | |
113 | ||
114 | /* Supported palette types */ | |
115 | enum { PAL_ARGB1555, PAL_RGB565, PAL_ARGB4444, PAL_ARGB8888 }; | |
116 | ||
117 | struct pvr2_params { unsigned int val; char *name; }; | |
7e7ec0d4 | 118 | static struct pvr2_params cables[] __devinitdata = { |
1da177e4 LT |
119 | { CT_VGA, "VGA" }, { CT_RGB, "RGB" }, { CT_COMPOSITE, "COMPOSITE" }, |
120 | }; | |
121 | ||
7e7ec0d4 | 122 | static struct pvr2_params outputs[] __devinitdata = { |
1da177e4 LT |
123 | { VO_PAL, "PAL" }, { VO_NTSC, "NTSC" }, { VO_VGA, "VGA" }, |
124 | }; | |
125 | ||
126 | /* | |
127 | * This describes the current video mode | |
128 | */ | |
129 | ||
130 | static struct pvr2fb_par { | |
131 | unsigned int hsync_total; /* Clocks/line */ | |
132 | unsigned int vsync_total; /* Lines/field */ | |
133 | unsigned int borderstart_h; | |
134 | unsigned int borderstop_h; | |
135 | unsigned int borderstart_v; | |
136 | unsigned int borderstop_v; | |
137 | unsigned int diwstart_h; /* Horizontal offset of the display field */ | |
138 | unsigned int diwstart_v; /* Vertical offset of the display field, for | |
139 | interlaced modes, this is the long field */ | |
140 | unsigned long disp_start; /* Address of image within VRAM */ | |
141 | unsigned char is_interlaced; /* Is the display interlaced? */ | |
142 | unsigned char is_doublescan; /* Are scanlines output twice? (doublescan) */ | |
143 | unsigned char is_lowres; /* Is horizontal pixel-doubling enabled? */ | |
144 | ||
145 | unsigned long mmio_base; /* MMIO base */ | |
146 | } *currentpar; | |
147 | ||
148 | static struct fb_info *fb_info; | |
149 | ||
e9705a77 | 150 | static struct fb_fix_screeninfo pvr2_fix __devinitdata = { |
1da177e4 | 151 | .id = "NEC PowerVR2", |
e9705a77 PM |
152 | .type = FB_TYPE_PACKED_PIXELS, |
153 | .visual = FB_VISUAL_TRUECOLOR, | |
1da177e4 LT |
154 | .ypanstep = 1, |
155 | .ywrapstep = 1, | |
e9705a77 | 156 | .accel = FB_ACCEL_NONE, |
1da177e4 LT |
157 | }; |
158 | ||
e9705a77 | 159 | static struct fb_var_screeninfo pvr2_var __devinitdata = { |
1da177e4 LT |
160 | .xres = 640, |
161 | .yres = 480, | |
162 | .xres_virtual = 640, | |
163 | .yres_virtual = 480, | |
164 | .bits_per_pixel =16, | |
165 | .red = { 11, 5, 0 }, | |
166 | .green = { 5, 6, 0 }, | |
167 | .blue = { 0, 5, 0 }, | |
168 | .activate = FB_ACTIVATE_NOW, | |
169 | .height = -1, | |
170 | .width = -1, | |
171 | .vmode = FB_VMODE_NONINTERLACED, | |
172 | }; | |
173 | ||
174 | static int cable_type = CT_VGA; | |
175 | static int video_output = VO_VGA; | |
176 | ||
177 | static int nopan = 0; | |
178 | static int nowrap = 1; | |
179 | ||
180 | /* | |
181 | * We do all updating, blanking, etc. during the vertical retrace period | |
182 | */ | |
183 | static unsigned int do_vmode_full = 0; /* Change the video mode */ | |
184 | static unsigned int do_vmode_pan = 0; /* Update the video mode */ | |
185 | static short do_blank = 0; /* (Un)Blank the screen */ | |
186 | ||
187 | static unsigned int is_blanked = 0; /* Is the screen blanked? */ | |
188 | ||
189 | #ifdef CONFIG_SH_STORE_QUEUES | |
d2b06a8b | 190 | static unsigned long pvr2fb_map; |
1da177e4 LT |
191 | #endif |
192 | ||
193 | #ifdef CONFIG_SH_DMA | |
194 | static unsigned int shdma = PVR2_CASCADE_CHAN; | |
195 | static unsigned int pvr2dma = ONCHIP_NR_DMA_CHANNELS; | |
196 | #endif | |
197 | ||
1da177e4 LT |
198 | static int pvr2fb_setcolreg(unsigned int regno, unsigned int red, unsigned int green, unsigned int blue, |
199 | unsigned int transp, struct fb_info *info); | |
200 | static int pvr2fb_blank(int blank, struct fb_info *info); | |
201 | static unsigned long get_line_length(int xres_virtual, int bpp); | |
202 | static void set_color_bitfields(struct fb_var_screeninfo *var); | |
203 | static int pvr2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info); | |
204 | static int pvr2fb_set_par(struct fb_info *info); | |
205 | static void pvr2_update_display(struct fb_info *info); | |
206 | static void pvr2_init_display(struct fb_info *info); | |
207 | static void pvr2_do_blank(void); | |
7d12e780 | 208 | static irqreturn_t pvr2fb_interrupt(int irq, void *dev_id); |
1da177e4 LT |
209 | static int pvr2_init_cable(void); |
210 | static int pvr2_get_param(const struct pvr2_params *p, const char *s, | |
211 | int val, int size); | |
d2b06a8b | 212 | #ifdef CONFIG_SH_DMA |
3f9b0880 | 213 | static ssize_t pvr2fb_write(struct fb_info *info, const char *buf, |
1da177e4 | 214 | size_t count, loff_t *ppos); |
d2b06a8b | 215 | #endif |
1da177e4 LT |
216 | |
217 | static struct fb_ops pvr2fb_ops = { | |
d2b06a8b PM |
218 | .owner = THIS_MODULE, |
219 | .fb_setcolreg = pvr2fb_setcolreg, | |
220 | .fb_blank = pvr2fb_blank, | |
221 | .fb_check_var = pvr2fb_check_var, | |
222 | .fb_set_par = pvr2fb_set_par, | |
1da177e4 LT |
223 | #ifdef CONFIG_SH_DMA |
224 | .fb_write = pvr2fb_write, | |
225 | #endif | |
e9705a77 | 226 | .fb_fillrect = cfb_fillrect, |
1da177e4 LT |
227 | .fb_copyarea = cfb_copyarea, |
228 | .fb_imageblit = cfb_imageblit, | |
1da177e4 LT |
229 | }; |
230 | ||
7e7ec0d4 | 231 | static struct fb_videomode pvr2_modedb[] __devinitdata = { |
1da177e4 LT |
232 | /* |
233 | * Broadcast video modes (PAL and NTSC). I'm unfamiliar with | |
234 | * PAL-M and PAL-N, but from what I've read both modes parallel PAL and | |
235 | * NTSC, so it shouldn't be a problem (I hope). | |
236 | */ | |
237 | ||
238 | { | |
239 | /* 640x480 @ 60Hz interlaced (NTSC) */ | |
240 | "ntsc_640x480i", 60, 640, 480, TV_CLK, 38, 33, 0, 18, 146, 26, | |
241 | FB_SYNC_BROADCAST, FB_VMODE_INTERLACED | FB_VMODE_YWRAP | |
242 | }, { | |
243 | /* 640x240 @ 60Hz (NTSC) */ | |
244 | /* XXX: Broken! Don't use... */ | |
245 | "ntsc_640x240", 60, 640, 240, TV_CLK, 38, 33, 0, 0, 146, 22, | |
246 | FB_SYNC_BROADCAST, FB_VMODE_YWRAP | |
247 | }, { | |
248 | /* 640x480 @ 60hz (VGA) */ | |
249 | "vga_640x480", 60, 640, 480, VGA_CLK, 38, 33, 0, 18, 146, 26, | |
250 | 0, FB_VMODE_YWRAP | |
e9705a77 | 251 | }, |
1da177e4 LT |
252 | }; |
253 | ||
254 | #define NUM_TOTAL_MODES ARRAY_SIZE(pvr2_modedb) | |
255 | ||
256 | #define DEFMODE_NTSC 0 | |
257 | #define DEFMODE_PAL 0 | |
258 | #define DEFMODE_VGA 2 | |
259 | ||
260 | static int defmode = DEFMODE_NTSC; | |
7e7ec0d4 | 261 | static char *mode_option __devinitdata = NULL; |
1da177e4 LT |
262 | |
263 | static inline void pvr2fb_set_pal_type(unsigned int type) | |
264 | { | |
265 | struct pvr2fb_par *par = (struct pvr2fb_par *)fb_info->par; | |
266 | ||
267 | fb_writel(type, par->mmio_base + 0x108); | |
268 | } | |
269 | ||
270 | static inline void pvr2fb_set_pal_entry(struct pvr2fb_par *par, | |
271 | unsigned int regno, | |
272 | unsigned int val) | |
273 | { | |
274 | fb_writel(val, par->mmio_base + 0x1000 + (4 * regno)); | |
275 | } | |
276 | ||
277 | static int pvr2fb_blank(int blank, struct fb_info *info) | |
278 | { | |
279 | do_blank = blank ? blank : -1; | |
280 | return 0; | |
281 | } | |
282 | ||
283 | static inline unsigned long get_line_length(int xres_virtual, int bpp) | |
284 | { | |
285 | return (unsigned long)((((xres_virtual*bpp)+31)&~31) >> 3); | |
286 | } | |
287 | ||
288 | static void set_color_bitfields(struct fb_var_screeninfo *var) | |
289 | { | |
290 | switch (var->bits_per_pixel) { | |
291 | case 16: /* RGB 565 */ | |
e9705a77 | 292 | pvr2fb_set_pal_type(PAL_RGB565); |
1da177e4 LT |
293 | var->red.offset = 11; var->red.length = 5; |
294 | var->green.offset = 5; var->green.length = 6; | |
295 | var->blue.offset = 0; var->blue.length = 5; | |
296 | var->transp.offset = 0; var->transp.length = 0; | |
297 | break; | |
298 | case 24: /* RGB 888 */ | |
299 | var->red.offset = 16; var->red.length = 8; | |
300 | var->green.offset = 8; var->green.length = 8; | |
301 | var->blue.offset = 0; var->blue.length = 8; | |
302 | var->transp.offset = 0; var->transp.length = 0; | |
303 | break; | |
304 | case 32: /* ARGB 8888 */ | |
e9705a77 | 305 | pvr2fb_set_pal_type(PAL_ARGB8888); |
1da177e4 LT |
306 | var->red.offset = 16; var->red.length = 8; |
307 | var->green.offset = 8; var->green.length = 8; | |
308 | var->blue.offset = 0; var->blue.length = 8; | |
309 | var->transp.offset = 24; var->transp.length = 8; | |
310 | break; | |
311 | } | |
312 | } | |
313 | ||
314 | static int pvr2fb_setcolreg(unsigned int regno, unsigned int red, | |
315 | unsigned int green, unsigned int blue, | |
316 | unsigned int transp, struct fb_info *info) | |
317 | { | |
318 | struct pvr2fb_par *par = (struct pvr2fb_par *)info->par; | |
319 | unsigned int tmp; | |
320 | ||
321 | if (regno > info->cmap.len) | |
322 | return 1; | |
323 | ||
324 | /* | |
325 | * We only support the hardware palette for 16 and 32bpp. It's also | |
326 | * expected that the palette format has been set by the time we get | |
327 | * here, so we don't waste time setting it again. | |
328 | */ | |
329 | switch (info->var.bits_per_pixel) { | |
330 | case 16: /* RGB 565 */ | |
331 | tmp = (red & 0xf800) | | |
332 | ((green & 0xfc00) >> 5) | | |
333 | ((blue & 0xf800) >> 11); | |
334 | ||
335 | pvr2fb_set_pal_entry(par, regno, tmp); | |
336 | ((u16*)(info->pseudo_palette))[regno] = tmp; | |
337 | break; | |
338 | case 24: /* RGB 888 */ | |
339 | red >>= 8; green >>= 8; blue >>= 8; | |
340 | ((u32*)(info->pseudo_palette))[regno] = (red << 16) | (green << 8) | blue; | |
341 | break; | |
342 | case 32: /* ARGB 8888 */ | |
343 | red >>= 8; green >>= 8; blue >>= 8; | |
344 | tmp = (transp << 24) | (red << 16) | (green << 8) | blue; | |
345 | ||
346 | pvr2fb_set_pal_entry(par, regno, tmp); | |
347 | ((u32*)(info->pseudo_palette))[regno] = tmp; | |
348 | break; | |
349 | default: | |
350 | pr_debug("Invalid bit depth %d?!?\n", info->var.bits_per_pixel); | |
351 | return 1; | |
352 | } | |
353 | ||
354 | return 0; | |
355 | } | |
356 | ||
357 | static int pvr2fb_set_par(struct fb_info *info) | |
358 | { | |
359 | struct pvr2fb_par *par = (struct pvr2fb_par *)info->par; | |
360 | struct fb_var_screeninfo *var = &info->var; | |
361 | unsigned long line_length; | |
362 | unsigned int vtotal; | |
363 | ||
364 | /* | |
365 | * XXX: It's possible that a user could use a VGA box, change the cable | |
366 | * type in hardware (i.e. switch from VGA<->composite), then change | |
367 | * modes (i.e. switching to another VT). If that happens we should | |
368 | * automagically change the output format to cope, but currently I | |
369 | * don't have a VGA box to make sure this works properly. | |
370 | */ | |
371 | cable_type = pvr2_init_cable(); | |
372 | if (cable_type == CT_VGA && video_output != VO_VGA) | |
373 | video_output = VO_VGA; | |
374 | ||
375 | var->vmode &= FB_VMODE_MASK; | |
376 | if (var->vmode & FB_VMODE_INTERLACED && video_output != VO_VGA) | |
377 | par->is_interlaced = 1; | |
e9705a77 | 378 | /* |
1da177e4 LT |
379 | * XXX: Need to be more creative with this (i.e. allow doublecan for |
380 | * PAL/NTSC output). | |
381 | */ | |
382 | if (var->vmode & FB_VMODE_DOUBLE && video_output == VO_VGA) | |
383 | par->is_doublescan = 1; | |
e9705a77 | 384 | |
1da177e4 LT |
385 | par->hsync_total = var->left_margin + var->xres + var->right_margin + |
386 | var->hsync_len; | |
387 | par->vsync_total = var->upper_margin + var->yres + var->lower_margin + | |
388 | var->vsync_len; | |
389 | ||
390 | if (var->sync & FB_SYNC_BROADCAST) { | |
391 | vtotal = par->vsync_total; | |
392 | if (par->is_interlaced) | |
393 | vtotal /= 2; | |
394 | if (vtotal > (PAL_VTOTAL + NTSC_VTOTAL)/2) { | |
395 | /* XXX: Check for start values here... */ | |
396 | /* XXX: Check hardware for PAL-compatibility */ | |
397 | par->borderstart_h = 116; | |
398 | par->borderstart_v = 44; | |
399 | } else { | |
400 | /* NTSC video output */ | |
401 | par->borderstart_h = 126; | |
402 | par->borderstart_v = 18; | |
403 | } | |
404 | } else { | |
405 | /* VGA mode */ | |
406 | /* XXX: What else needs to be checked? */ | |
e9705a77 | 407 | /* |
1da177e4 LT |
408 | * XXX: We have a little freedom in VGA modes, what ranges |
409 | * should be here (i.e. hsync/vsync totals, etc.)? | |
410 | */ | |
411 | par->borderstart_h = 126; | |
412 | par->borderstart_v = 40; | |
413 | } | |
414 | ||
415 | /* Calculate the remainding offsets */ | |
416 | par->diwstart_h = par->borderstart_h + var->left_margin; | |
417 | par->diwstart_v = par->borderstart_v + var->upper_margin; | |
e9705a77 PM |
418 | par->borderstop_h = par->diwstart_h + var->xres + |
419 | var->right_margin; | |
1da177e4 LT |
420 | par->borderstop_v = par->diwstart_v + var->yres + |
421 | var->lower_margin; | |
422 | ||
423 | if (!par->is_interlaced) | |
424 | par->borderstop_v /= 2; | |
425 | if (info->var.xres < 640) | |
426 | par->is_lowres = 1; | |
427 | ||
428 | line_length = get_line_length(var->xres_virtual, var->bits_per_pixel); | |
429 | par->disp_start = info->fix.smem_start + (line_length * var->yoffset) * line_length; | |
430 | info->fix.line_length = line_length; | |
431 | return 0; | |
432 | } | |
433 | ||
434 | static int pvr2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) | |
435 | { | |
436 | struct pvr2fb_par *par = (struct pvr2fb_par *)info->par; | |
437 | unsigned int vtotal, hsync_total; | |
438 | unsigned long line_length; | |
439 | ||
440 | if (var->pixclock != TV_CLK && var->pixclock != VGA_CLK) { | |
441 | pr_debug("Invalid pixclock value %d\n", var->pixclock); | |
442 | return -EINVAL; | |
443 | } | |
444 | ||
445 | if (var->xres < 320) | |
446 | var->xres = 320; | |
447 | if (var->yres < 240) | |
448 | var->yres = 240; | |
449 | if (var->xres_virtual < var->xres) | |
450 | var->xres_virtual = var->xres; | |
451 | if (var->yres_virtual < var->yres) | |
452 | var->yres_virtual = var->yres; | |
453 | ||
454 | if (var->bits_per_pixel <= 16) | |
455 | var->bits_per_pixel = 16; | |
456 | else if (var->bits_per_pixel <= 24) | |
457 | var->bits_per_pixel = 24; | |
458 | else if (var->bits_per_pixel <= 32) | |
459 | var->bits_per_pixel = 32; | |
460 | ||
461 | set_color_bitfields(var); | |
462 | ||
463 | if (var->vmode & FB_VMODE_YWRAP) { | |
e9705a77 | 464 | if (var->xoffset || var->yoffset < 0 || |
1da177e4 LT |
465 | var->yoffset >= var->yres_virtual) { |
466 | var->xoffset = var->yoffset = 0; | |
467 | } else { | |
468 | if (var->xoffset > var->xres_virtual - var->xres || | |
e9705a77 | 469 | var->yoffset > var->yres_virtual - var->yres || |
1da177e4 LT |
470 | var->xoffset < 0 || var->yoffset < 0) |
471 | var->xoffset = var->yoffset = 0; | |
472 | } | |
473 | } else { | |
474 | var->xoffset = var->yoffset = 0; | |
475 | } | |
476 | ||
e9705a77 | 477 | /* |
1da177e4 LT |
478 | * XXX: Need to be more creative with this (i.e. allow doublecan for |
479 | * PAL/NTSC output). | |
480 | */ | |
481 | if (var->yres < 480 && video_output == VO_VGA) | |
482 | var->vmode |= FB_VMODE_DOUBLE; | |
483 | ||
484 | if (video_output != VO_VGA) { | |
485 | var->sync |= FB_SYNC_BROADCAST; | |
486 | var->vmode |= FB_VMODE_INTERLACED; | |
487 | } else { | |
488 | var->sync &= ~FB_SYNC_BROADCAST; | |
489 | var->vmode &= ~FB_VMODE_INTERLACED; | |
490 | var->vmode |= pvr2_var.vmode; | |
491 | } | |
492 | ||
493 | if ((var->activate & FB_ACTIVATE_MASK) != FB_ACTIVATE_TEST) { | |
494 | var->right_margin = par->borderstop_h - | |
495 | (par->diwstart_h + var->xres); | |
496 | var->left_margin = par->diwstart_h - par->borderstart_h; | |
497 | var->hsync_len = par->borderstart_h + | |
498 | (par->hsync_total - par->borderstop_h); | |
499 | ||
500 | var->upper_margin = par->diwstart_v - par->borderstart_v; | |
501 | var->lower_margin = par->borderstop_v - | |
502 | (par->diwstart_v + var->yres); | |
503 | var->vsync_len = par->borderstop_v + | |
504 | (par->vsync_total - par->borderstop_v); | |
505 | } | |
e9705a77 | 506 | |
1da177e4 LT |
507 | hsync_total = var->left_margin + var->xres + var->right_margin + |
508 | var->hsync_len; | |
509 | vtotal = var->upper_margin + var->yres + var->lower_margin + | |
510 | var->vsync_len; | |
511 | ||
512 | if (var->sync & FB_SYNC_BROADCAST) { | |
513 | if (var->vmode & FB_VMODE_INTERLACED) | |
514 | vtotal /= 2; | |
515 | if (vtotal > (PAL_VTOTAL + NTSC_VTOTAL)/2) { | |
516 | /* PAL video output */ | |
517 | /* XXX: Should be using a range here ... ? */ | |
518 | if (hsync_total != PAL_HTOTAL) { | |
519 | pr_debug("invalid hsync total for PAL\n"); | |
520 | return -EINVAL; | |
521 | } | |
522 | } else { | |
523 | /* NTSC video output */ | |
524 | if (hsync_total != NTSC_HTOTAL) { | |
525 | pr_debug("invalid hsync total for NTSC\n"); | |
526 | return -EINVAL; | |
527 | } | |
528 | } | |
529 | } | |
e9705a77 | 530 | |
1da177e4 LT |
531 | /* Check memory sizes */ |
532 | line_length = get_line_length(var->xres_virtual, var->bits_per_pixel); | |
533 | if (line_length * var->yres_virtual > info->fix.smem_len) | |
534 | return -ENOMEM; | |
535 | ||
536 | return 0; | |
537 | } | |
538 | ||
539 | static void pvr2_update_display(struct fb_info *info) | |
540 | { | |
541 | struct pvr2fb_par *par = (struct pvr2fb_par *) info->par; | |
542 | struct fb_var_screeninfo *var = &info->var; | |
543 | ||
544 | /* Update the start address of the display image */ | |
545 | fb_writel(par->disp_start, DISP_DIWADDRL); | |
546 | fb_writel(par->disp_start + | |
547 | get_line_length(var->xoffset+var->xres, var->bits_per_pixel), | |
548 | DISP_DIWADDRS); | |
549 | } | |
550 | ||
e9705a77 | 551 | /* |
1da177e4 LT |
552 | * Initialize the video mode. Currently, the 16bpp and 24bpp modes aren't |
553 | * very stable. It's probably due to the fact that a lot of the 2D video | |
554 | * registers are still undocumented. | |
555 | */ | |
556 | ||
557 | static void pvr2_init_display(struct fb_info *info) | |
558 | { | |
559 | struct pvr2fb_par *par = (struct pvr2fb_par *) info->par; | |
560 | struct fb_var_screeninfo *var = &info->var; | |
561 | unsigned int diw_height, diw_width, diw_modulo = 1; | |
562 | unsigned int bytesperpixel = var->bits_per_pixel >> 3; | |
563 | ||
564 | /* hsync and vsync totals */ | |
565 | fb_writel((par->vsync_total << 16) | par->hsync_total, DISP_SYNCSIZE); | |
566 | ||
567 | /* column height, modulo, row width */ | |
568 | /* since we're "panning" within vram, we need to offset things based | |
569 | * on the offset from the virtual x start to our real gfx. */ | |
570 | if (video_output != VO_VGA && par->is_interlaced) | |
571 | diw_modulo += info->fix.line_length / 4; | |
572 | diw_height = (par->is_interlaced ? var->yres / 2 : var->yres); | |
573 | diw_width = get_line_length(var->xres, var->bits_per_pixel) / 4; | |
574 | fb_writel((diw_modulo << 20) | (--diw_height << 10) | --diw_width, | |
575 | DISP_DIWSIZE); | |
576 | ||
577 | /* display address, long and short fields */ | |
578 | fb_writel(par->disp_start, DISP_DIWADDRL); | |
579 | fb_writel(par->disp_start + | |
580 | get_line_length(var->xoffset+var->xres, var->bits_per_pixel), | |
581 | DISP_DIWADDRS); | |
582 | ||
583 | /* border horizontal, border vertical, border color */ | |
584 | fb_writel((par->borderstart_h << 16) | par->borderstop_h, DISP_BRDRHORZ); | |
585 | fb_writel((par->borderstart_v << 16) | par->borderstop_v, DISP_BRDRVERT); | |
586 | fb_writel(0, DISP_BRDRCOLR); | |
587 | ||
588 | /* display window start position */ | |
589 | fb_writel(par->diwstart_h, DISP_DIWHSTRT); | |
590 | fb_writel((par->diwstart_v << 16) | par->diwstart_v, DISP_DIWVSTRT); | |
e9705a77 | 591 | |
1da177e4 LT |
592 | /* misc. settings */ |
593 | fb_writel((0x16 << 16) | par->is_lowres, DISP_DIWCONF); | |
594 | ||
595 | /* clock doubler (for VGA), scan doubler, display enable */ | |
e9705a77 | 596 | fb_writel(((video_output == VO_VGA) << 23) | |
1da177e4 LT |
597 | (par->is_doublescan << 1) | 1, DISP_DIWMODE); |
598 | ||
599 | /* bits per pixel */ | |
600 | fb_writel(fb_readl(DISP_DIWMODE) | (--bytesperpixel << 2), DISP_DIWMODE); | |
601 | ||
e9705a77 | 602 | /* video enable, color sync, interlace, |
1da177e4 LT |
603 | * hsync and vsync polarity (currently unused) */ |
604 | fb_writel(0x100 | ((par->is_interlaced /*|4*/) << 4), DISP_SYNCCONF); | |
605 | } | |
606 | ||
607 | /* Simulate blanking by making the border cover the entire screen */ | |
608 | ||
609 | #define BLANK_BIT (1<<3) | |
610 | ||
611 | static void pvr2_do_blank(void) | |
612 | { | |
613 | struct pvr2fb_par *par = currentpar; | |
614 | unsigned long diwconf; | |
615 | ||
616 | diwconf = fb_readl(DISP_DIWCONF); | |
617 | if (do_blank > 0) | |
618 | fb_writel(diwconf | BLANK_BIT, DISP_DIWCONF); | |
619 | else | |
620 | fb_writel(diwconf & ~BLANK_BIT, DISP_DIWCONF); | |
621 | ||
622 | is_blanked = do_blank > 0 ? do_blank : 0; | |
623 | } | |
624 | ||
7d12e780 | 625 | static irqreturn_t pvr2fb_interrupt(int irq, void *dev_id) |
1da177e4 LT |
626 | { |
627 | struct fb_info *info = dev_id; | |
628 | ||
629 | if (do_vmode_pan || do_vmode_full) | |
630 | pvr2_update_display(info); | |
631 | if (do_vmode_full) | |
632 | pvr2_init_display(info); | |
633 | if (do_vmode_pan) | |
634 | do_vmode_pan = 0; | |
635 | if (do_vmode_full) | |
636 | do_vmode_full = 0; | |
637 | if (do_blank) { | |
638 | pvr2_do_blank(); | |
639 | do_blank = 0; | |
640 | } | |
641 | return IRQ_HANDLED; | |
642 | } | |
643 | ||
644 | /* | |
645 | * Determine the cable type and initialize the cable output format. Don't do | |
646 | * anything if the cable type has been overidden (via "cable:XX"). | |
647 | */ | |
648 | ||
649 | #define PCTRA 0xff80002c | |
650 | #define PDTRA 0xff800030 | |
651 | #define VOUTC 0xa0702c00 | |
652 | ||
653 | static int pvr2_init_cable(void) | |
654 | { | |
655 | if (cable_type < 0) { | |
e9705a77 | 656 | fb_writel((fb_readl(PCTRA) & 0xfff0ffff) | 0x000a0000, |
1da177e4 LT |
657 | PCTRA); |
658 | cable_type = (fb_readw(PDTRA) >> 8) & 3; | |
659 | } | |
660 | ||
661 | /* Now select the output format (either composite or other) */ | |
662 | /* XXX: Save the previous val first, as this reg is also AICA | |
663 | related */ | |
664 | if (cable_type == CT_COMPOSITE) | |
665 | fb_writel(3 << 8, VOUTC); | |
666 | else | |
667 | fb_writel(0, VOUTC); | |
668 | ||
669 | return cable_type; | |
670 | } | |
671 | ||
672 | #ifdef CONFIG_SH_DMA | |
3f9b0880 | 673 | static ssize_t pvr2fb_write(struct fb_info *info, const char *buf, |
1da177e4 LT |
674 | size_t count, loff_t *ppos) |
675 | { | |
676 | unsigned long dst, start, end, len; | |
677 | unsigned int nr_pages; | |
678 | struct page **pages; | |
679 | int ret, i; | |
680 | ||
681 | nr_pages = (count + PAGE_SIZE - 1) >> PAGE_SHIFT; | |
682 | ||
683 | pages = kmalloc(nr_pages * sizeof(struct page *), GFP_KERNEL); | |
684 | if (!pages) | |
685 | return -ENOMEM; | |
e9705a77 | 686 | |
1da177e4 LT |
687 | down_read(¤t->mm->mmap_sem); |
688 | ret = get_user_pages(current, current->mm, (unsigned long)buf, | |
689 | nr_pages, WRITE, 0, pages, NULL); | |
690 | up_read(¤t->mm->mmap_sem); | |
691 | ||
692 | if (ret < nr_pages) { | |
693 | nr_pages = ret; | |
694 | ret = -EINVAL; | |
695 | goto out_unmap; | |
696 | } | |
697 | ||
698 | dma_configure_channel(shdma, 0x12c1); | |
e9705a77 | 699 | |
1da177e4 LT |
700 | dst = (unsigned long)fb_info->screen_base + *ppos; |
701 | start = (unsigned long)page_address(pages[0]); | |
702 | end = (unsigned long)page_address(pages[nr_pages]); | |
703 | len = nr_pages << PAGE_SHIFT; | |
704 | ||
705 | /* Half-assed contig check */ | |
706 | if (start + len == end) { | |
707 | /* As we do this in one shot, it's either all or nothing.. */ | |
708 | if ((*ppos + len) > fb_info->fix.smem_len) { | |
709 | ret = -ENOSPC; | |
710 | goto out_unmap; | |
711 | } | |
712 | ||
713 | dma_write(shdma, start, 0, len); | |
714 | dma_write(pvr2dma, 0, dst, len); | |
715 | dma_wait_for_completion(pvr2dma); | |
716 | ||
717 | goto out; | |
718 | } | |
719 | ||
720 | /* Not contiguous, writeout per-page instead.. */ | |
721 | for (i = 0; i < nr_pages; i++, dst += PAGE_SIZE) { | |
722 | if ((*ppos + (i << PAGE_SHIFT)) > fb_info->fix.smem_len) { | |
723 | ret = -ENOSPC; | |
724 | goto out_unmap; | |
725 | } | |
726 | ||
727 | dma_write_page(shdma, (unsigned long)page_address(pages[i]), 0); | |
728 | dma_write_page(pvr2dma, 0, dst); | |
729 | dma_wait_for_completion(pvr2dma); | |
730 | } | |
731 | ||
732 | out: | |
733 | *ppos += count; | |
734 | ret = count; | |
735 | ||
736 | out_unmap: | |
737 | for (i = 0; i < nr_pages; i++) | |
738 | page_cache_release(pages[i]); | |
739 | ||
740 | kfree(pages); | |
741 | ||
742 | return ret; | |
e9705a77 | 743 | } |
1da177e4 LT |
744 | #endif /* CONFIG_SH_DMA */ |
745 | ||
746 | /** | |
747 | * pvr2fb_common_init | |
748 | * | |
749 | * Common init code for the PVR2 chips. | |
750 | * | |
751 | * This mostly takes care of the common aspects of the fb setup and | |
752 | * registration. It's expected that the board-specific init code has | |
753 | * already setup pvr2_fix with something meaningful at this point. | |
754 | * | |
755 | * Device info reporting is also done here, as well as picking a sane | |
756 | * default from the modedb. For board-specific modelines, simply define | |
757 | * a per-board modedb. | |
758 | * | |
759 | * Also worth noting is that the cable and video output types are likely | |
760 | * always going to be VGA for the PCI-based PVR2 boards, but we leave this | |
761 | * in for flexibility anyways. Who knows, maybe someone has tv-out on a | |
762 | * PCI-based version of these things ;-) | |
763 | */ | |
7e7ec0d4 | 764 | static int __devinit pvr2fb_common_init(void) |
1da177e4 LT |
765 | { |
766 | struct pvr2fb_par *par = currentpar; | |
767 | unsigned long modememused, rev; | |
768 | ||
769 | fb_info->screen_base = ioremap_nocache(pvr2_fix.smem_start, | |
770 | pvr2_fix.smem_len); | |
e9705a77 | 771 | |
1da177e4 LT |
772 | if (!fb_info->screen_base) { |
773 | printk(KERN_ERR "pvr2fb: Failed to remap smem space\n"); | |
774 | goto out_err; | |
775 | } | |
776 | ||
777 | par->mmio_base = (unsigned long)ioremap_nocache(pvr2_fix.mmio_start, | |
e9705a77 | 778 | pvr2_fix.mmio_len); |
1da177e4 LT |
779 | if (!par->mmio_base) { |
780 | printk(KERN_ERR "pvr2fb: Failed to remap mmio space\n"); | |
781 | goto out_err; | |
782 | } | |
783 | ||
d2b06a8b | 784 | fb_memset(fb_info->screen_base, 0, pvr2_fix.smem_len); |
1da177e4 LT |
785 | |
786 | pvr2_fix.ypanstep = nopan ? 0 : 1; | |
787 | pvr2_fix.ywrapstep = nowrap ? 0 : 1; | |
788 | ||
789 | fb_info->fbops = &pvr2fb_ops; | |
790 | fb_info->fix = pvr2_fix; | |
791 | fb_info->par = currentpar; | |
792 | fb_info->pseudo_palette = (void *)(fb_info->par + 1); | |
793 | fb_info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; | |
794 | ||
795 | if (video_output == VO_VGA) | |
796 | defmode = DEFMODE_VGA; | |
797 | ||
798 | if (!mode_option) | |
799 | mode_option = "640x480@60"; | |
800 | ||
801 | if (!fb_find_mode(&fb_info->var, fb_info, mode_option, pvr2_modedb, | |
802 | NUM_TOTAL_MODES, &pvr2_modedb[defmode], 16)) | |
803 | fb_info->var = pvr2_var; | |
804 | ||
805 | fb_alloc_cmap(&fb_info->cmap, 256, 0); | |
806 | ||
807 | if (register_framebuffer(fb_info) < 0) | |
808 | goto out_err; | |
809 | ||
810 | modememused = get_line_length(fb_info->var.xres_virtual, | |
811 | fb_info->var.bits_per_pixel); | |
812 | modememused *= fb_info->var.yres_virtual; | |
813 | ||
814 | rev = fb_readl(par->mmio_base + 0x04); | |
815 | ||
816 | printk("fb%d: %s (rev %ld.%ld) frame buffer device, using %ldk/%ldk of video memory\n", | |
817 | fb_info->node, fb_info->fix.id, (rev >> 4) & 0x0f, rev & 0x0f, | |
818 | modememused >> 10, (unsigned long)(fb_info->fix.smem_len >> 10)); | |
e9705a77 | 819 | printk("fb%d: Mode %dx%d-%d pitch = %ld cable: %s video output: %s\n", |
1da177e4 | 820 | fb_info->node, fb_info->var.xres, fb_info->var.yres, |
d2b06a8b | 821 | fb_info->var.bits_per_pixel, |
1da177e4 LT |
822 | get_line_length(fb_info->var.xres, fb_info->var.bits_per_pixel), |
823 | (char *)pvr2_get_param(cables, NULL, cable_type, 3), | |
824 | (char *)pvr2_get_param(outputs, NULL, video_output, 3)); | |
825 | ||
826 | #ifdef CONFIG_SH_STORE_QUEUES | |
827 | printk(KERN_NOTICE "fb%d: registering with SQ API\n", fb_info->node); | |
828 | ||
829 | pvr2fb_map = sq_remap(fb_info->fix.smem_start, fb_info->fix.smem_len, | |
d2b06a8b | 830 | fb_info->fix.id, pgprot_val(PAGE_SHARED)); |
1da177e4 LT |
831 | |
832 | printk(KERN_NOTICE "fb%d: Mapped video memory to SQ addr 0x%lx\n", | |
d2b06a8b | 833 | fb_info->node, pvr2fb_map); |
1da177e4 LT |
834 | #endif |
835 | ||
836 | return 0; | |
837 | ||
838 | out_err: | |
839 | if (fb_info->screen_base) | |
840 | iounmap(fb_info->screen_base); | |
841 | if (par->mmio_base) | |
842 | iounmap((void *)par->mmio_base); | |
843 | ||
844 | return -ENXIO; | |
845 | } | |
846 | ||
847 | #ifdef CONFIG_SH_DREAMCAST | |
848 | static int __init pvr2fb_dc_init(void) | |
849 | { | |
850 | if (!mach_is_dreamcast()) | |
851 | return -ENXIO; | |
852 | ||
853 | /* Make a guess at the monitor based on the attached cable */ | |
854 | if (pvr2_init_cable() == CT_VGA) { | |
855 | fb_info->monspecs.hfmin = 30000; | |
856 | fb_info->monspecs.hfmax = 70000; | |
857 | fb_info->monspecs.vfmin = 60; | |
858 | fb_info->monspecs.vfmax = 60; | |
859 | } else { | |
860 | /* Not VGA, using a TV (taken from acornfb) */ | |
861 | fb_info->monspecs.hfmin = 15469; | |
862 | fb_info->monspecs.hfmax = 15781; | |
863 | fb_info->monspecs.vfmin = 49; | |
864 | fb_info->monspecs.vfmax = 51; | |
865 | } | |
866 | ||
867 | /* | |
868 | * XXX: This needs to pull default video output via BIOS or other means | |
869 | */ | |
870 | if (video_output < 0) { | |
871 | if (cable_type == CT_VGA) { | |
872 | video_output = VO_VGA; | |
873 | } else { | |
874 | video_output = VO_NTSC; | |
875 | } | |
876 | } | |
e9705a77 PM |
877 | |
878 | /* | |
1da177e4 LT |
879 | * Nothing exciting about the DC PVR2 .. only a measly 8MiB. |
880 | */ | |
881 | pvr2_fix.smem_start = 0xa5000000; /* RAM starts here */ | |
882 | pvr2_fix.smem_len = 8 << 20; | |
883 | ||
884 | pvr2_fix.mmio_start = 0xa05f8000; /* registers start here */ | |
885 | pvr2_fix.mmio_len = 0x2000; | |
886 | ||
887 | if (request_irq(HW_EVENT_VSYNC, pvr2fb_interrupt, 0, | |
888 | "pvr2 VBL handler", fb_info)) { | |
889 | return -EBUSY; | |
890 | } | |
891 | ||
892 | #ifdef CONFIG_SH_DMA | |
893 | if (request_dma(pvr2dma, "pvr2") != 0) { | |
894 | free_irq(HW_EVENT_VSYNC, 0); | |
895 | return -EBUSY; | |
896 | } | |
897 | #endif | |
898 | ||
899 | return pvr2fb_common_init(); | |
900 | } | |
901 | ||
e9705a77 | 902 | static void __exit pvr2fb_dc_exit(void) |
1da177e4 | 903 | { |
295a1b47 AL |
904 | if (fb_info->screen_base) { |
905 | iounmap(fb_info->screen_base); | |
906 | fb_info->screen_base = NULL; | |
907 | } | |
908 | if (currentpar->mmio_base) { | |
909 | iounmap((void *)currentpar->mmio_base); | |
910 | currentpar->mmio_base = 0; | |
911 | } | |
912 | ||
1da177e4 LT |
913 | free_irq(HW_EVENT_VSYNC, 0); |
914 | #ifdef CONFIG_SH_DMA | |
915 | free_dma(pvr2dma); | |
916 | #endif | |
917 | } | |
918 | #endif /* CONFIG_SH_DREAMCAST */ | |
919 | ||
920 | #ifdef CONFIG_PCI | |
921 | static int __devinit pvr2fb_pci_probe(struct pci_dev *pdev, | |
922 | const struct pci_device_id *ent) | |
923 | { | |
924 | int ret; | |
925 | ||
926 | ret = pci_enable_device(pdev); | |
927 | if (ret) { | |
928 | printk(KERN_ERR "pvr2fb: PCI enable failed\n"); | |
929 | return ret; | |
930 | } | |
931 | ||
932 | ret = pci_request_regions(pdev, "pvr2fb"); | |
933 | if (ret) { | |
934 | printk(KERN_ERR "pvr2fb: PCI request regions failed\n"); | |
935 | return ret; | |
936 | } | |
937 | ||
938 | /* | |
939 | * Slightly more exciting than the DC PVR2 .. 16MiB! | |
940 | */ | |
941 | pvr2_fix.smem_start = pci_resource_start(pdev, 0); | |
942 | pvr2_fix.smem_len = pci_resource_len(pdev, 0); | |
943 | ||
944 | pvr2_fix.mmio_start = pci_resource_start(pdev, 1); | |
945 | pvr2_fix.mmio_len = pci_resource_len(pdev, 1); | |
946 | ||
947 | fb_info->device = &pdev->dev; | |
948 | ||
949 | return pvr2fb_common_init(); | |
950 | } | |
951 | ||
952 | static void __devexit pvr2fb_pci_remove(struct pci_dev *pdev) | |
953 | { | |
295a1b47 AL |
954 | if (fb_info->screen_base) { |
955 | iounmap(fb_info->screen_base); | |
956 | fb_info->screen_base = NULL; | |
957 | } | |
958 | if (currentpar->mmio_base) { | |
959 | iounmap((void *)currentpar->mmio_base); | |
960 | currentpar->mmio_base = 0; | |
961 | } | |
962 | ||
1da177e4 LT |
963 | pci_release_regions(pdev); |
964 | } | |
965 | ||
966 | static struct pci_device_id pvr2fb_pci_tbl[] __devinitdata = { | |
967 | { PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_NEON250, | |
968 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | |
969 | { 0, }, | |
970 | }; | |
971 | ||
972 | MODULE_DEVICE_TABLE(pci, pvr2fb_pci_tbl); | |
973 | ||
974 | static struct pci_driver pvr2fb_pci_driver = { | |
975 | .name = "pvr2fb", | |
976 | .id_table = pvr2fb_pci_tbl, | |
977 | .probe = pvr2fb_pci_probe, | |
978 | .remove = __devexit_p(pvr2fb_pci_remove), | |
979 | }; | |
980 | ||
981 | static int __init pvr2fb_pci_init(void) | |
982 | { | |
983 | return pci_register_driver(&pvr2fb_pci_driver); | |
984 | } | |
985 | ||
e9705a77 | 986 | static void __exit pvr2fb_pci_exit(void) |
1da177e4 LT |
987 | { |
988 | pci_unregister_driver(&pvr2fb_pci_driver); | |
989 | } | |
990 | #endif /* CONFIG_PCI */ | |
991 | ||
7e7ec0d4 | 992 | static int __devinit pvr2_get_param(const struct pvr2_params *p, const char *s, |
1da177e4 LT |
993 | int val, int size) |
994 | { | |
995 | int i; | |
996 | ||
997 | for (i = 0 ; i < size ; i++ ) { | |
998 | if (s != NULL) { | |
999 | if (!strnicmp(p[i].name, s, strlen(s))) | |
1000 | return p[i].val; | |
1001 | } else { | |
1002 | if (p[i].val == val) | |
1003 | return (int)p[i].name; | |
1004 | } | |
1005 | } | |
1006 | return -1; | |
1007 | } | |
1008 | ||
1009 | /* | |
1010 | * Parse command arguments. Supported arguments are: | |
1011 | * inverse Use inverse color maps | |
1012 | * cable:composite|rgb|vga Override the video cable type | |
1013 | * output:NTSC|PAL|VGA Override the video output format | |
1014 | * | |
1015 | * <xres>x<yres>[-<bpp>][@<refresh>] or, | |
1016 | * <name>[-<bpp>][@<refresh>] Startup using this video mode | |
1017 | */ | |
1018 | ||
1019 | #ifndef MODULE | |
e9705a77 | 1020 | static int __init pvr2fb_setup(char *options) |
1da177e4 LT |
1021 | { |
1022 | char *this_opt; | |
1023 | char cable_arg[80]; | |
1024 | char output_arg[80]; | |
1025 | ||
1026 | if (!options || !*options) | |
1027 | return 0; | |
1028 | ||
1029 | while ((this_opt = strsep(&options, ","))) { | |
1030 | if (!*this_opt) | |
1031 | continue; | |
1032 | if (!strcmp(this_opt, "inverse")) { | |
1033 | fb_invert_cmaps(); | |
1034 | } else if (!strncmp(this_opt, "cable:", 6)) { | |
1035 | strcpy(cable_arg, this_opt + 6); | |
1036 | } else if (!strncmp(this_opt, "output:", 7)) { | |
1037 | strcpy(output_arg, this_opt + 7); | |
1038 | } else if (!strncmp(this_opt, "nopan", 5)) { | |
1039 | nopan = 1; | |
1040 | } else if (!strncmp(this_opt, "nowrap", 6)) { | |
1041 | nowrap = 1; | |
1042 | } else { | |
1043 | mode_option = this_opt; | |
1044 | } | |
1045 | } | |
1046 | ||
1047 | if (*cable_arg) | |
1048 | cable_type = pvr2_get_param(cables, cable_arg, 0, 3); | |
1049 | if (*output_arg) | |
1050 | video_output = pvr2_get_param(outputs, output_arg, 0, 3); | |
1051 | ||
1052 | return 0; | |
1053 | } | |
1054 | #endif | |
1055 | ||
1056 | static struct pvr2_board { | |
1057 | int (*init)(void); | |
1058 | void (*exit)(void); | |
1059 | char name[16]; | |
e9705a77 | 1060 | } board_driver[] = { |
1da177e4 LT |
1061 | #ifdef CONFIG_SH_DREAMCAST |
1062 | { pvr2fb_dc_init, pvr2fb_dc_exit, "Sega DC PVR2" }, | |
1063 | #endif | |
1064 | #ifdef CONFIG_PCI | |
1065 | { pvr2fb_pci_init, pvr2fb_pci_exit, "PCI PVR2" }, | |
1066 | #endif | |
1067 | { 0, }, | |
1068 | }; | |
1069 | ||
e9705a77 | 1070 | static int __init pvr2fb_init(void) |
1da177e4 LT |
1071 | { |
1072 | int i, ret = -ENODEV; | |
1073 | int size; | |
1074 | ||
1075 | #ifndef MODULE | |
1076 | char *option = NULL; | |
1077 | ||
1078 | if (fb_get_options("pvr2fb", &option)) | |
1079 | return -ENODEV; | |
1080 | pvr2fb_setup(option); | |
1081 | #endif | |
1082 | size = sizeof(struct fb_info) + sizeof(struct pvr2fb_par) + 16 * sizeof(u32); | |
1083 | ||
1084 | fb_info = kmalloc(size, GFP_KERNEL); | |
1085 | if (!fb_info) { | |
1086 | printk(KERN_ERR "Failed to allocate memory for fb_info\n"); | |
1087 | return -ENOMEM; | |
1088 | } | |
1089 | ||
1090 | memset(fb_info, 0, size); | |
1091 | ||
1092 | currentpar = (struct pvr2fb_par *)(fb_info + 1); | |
1093 | ||
e9705a77 PM |
1094 | for (i = 0; i < ARRAY_SIZE(board_driver); i++) { |
1095 | struct pvr2_board *pvr_board = board_driver + i; | |
1da177e4 LT |
1096 | |
1097 | if (!pvr_board->init) | |
1098 | continue; | |
1099 | ||
1100 | ret = pvr_board->init(); | |
1101 | ||
1102 | if (ret != 0) { | |
1103 | printk(KERN_ERR "pvr2fb: Failed init of %s device\n", | |
1104 | pvr_board->name); | |
1105 | kfree(fb_info); | |
1106 | break; | |
1107 | } | |
1108 | } | |
1109 | ||
1110 | return ret; | |
1111 | } | |
1112 | ||
1113 | static void __exit pvr2fb_exit(void) | |
1114 | { | |
1115 | int i; | |
1116 | ||
e9705a77 PM |
1117 | for (i = 0; i < ARRAY_SIZE(board_driver); i++) { |
1118 | struct pvr2_board *pvr_board = board_driver + i; | |
1da177e4 LT |
1119 | |
1120 | if (pvr_board->exit) | |
1121 | pvr_board->exit(); | |
1122 | } | |
e9705a77 | 1123 | |
1da177e4 LT |
1124 | #ifdef CONFIG_SH_STORE_QUEUES |
1125 | sq_unmap(pvr2fb_map); | |
1126 | #endif | |
1127 | ||
1128 | unregister_framebuffer(fb_info); | |
1129 | kfree(fb_info); | |
1130 | } | |
1131 | ||
1132 | module_init(pvr2fb_init); | |
1133 | module_exit(pvr2fb_exit); | |
1134 | ||
1135 | MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>, M. R. Brown <mrbrown@0xd6.org>"); | |
1136 | MODULE_DESCRIPTION("Framebuffer driver for NEC PowerVR 2 based graphics boards"); | |
1137 | MODULE_LICENSE("GPL"); |