Commit | Line | Data |
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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 */ | |
9cd1c674 | 146 | u32 palette[16]; |
1da177e4 LT |
147 | } *currentpar; |
148 | ||
149 | static struct fb_info *fb_info; | |
150 | ||
e9705a77 | 151 | static struct fb_fix_screeninfo pvr2_fix __devinitdata = { |
1da177e4 | 152 | .id = "NEC PowerVR2", |
e9705a77 PM |
153 | .type = FB_TYPE_PACKED_PIXELS, |
154 | .visual = FB_VISUAL_TRUECOLOR, | |
1da177e4 LT |
155 | .ypanstep = 1, |
156 | .ywrapstep = 1, | |
e9705a77 | 157 | .accel = FB_ACCEL_NONE, |
1da177e4 LT |
158 | }; |
159 | ||
e9705a77 | 160 | static struct fb_var_screeninfo pvr2_var __devinitdata = { |
1da177e4 LT |
161 | .xres = 640, |
162 | .yres = 480, | |
163 | .xres_virtual = 640, | |
164 | .yres_virtual = 480, | |
165 | .bits_per_pixel =16, | |
166 | .red = { 11, 5, 0 }, | |
167 | .green = { 5, 6, 0 }, | |
168 | .blue = { 0, 5, 0 }, | |
169 | .activate = FB_ACTIVATE_NOW, | |
170 | .height = -1, | |
171 | .width = -1, | |
172 | .vmode = FB_VMODE_NONINTERLACED, | |
173 | }; | |
174 | ||
175 | static int cable_type = CT_VGA; | |
176 | static int video_output = VO_VGA; | |
177 | ||
178 | static int nopan = 0; | |
179 | static int nowrap = 1; | |
180 | ||
181 | /* | |
182 | * We do all updating, blanking, etc. during the vertical retrace period | |
183 | */ | |
184 | static unsigned int do_vmode_full = 0; /* Change the video mode */ | |
185 | static unsigned int do_vmode_pan = 0; /* Update the video mode */ | |
186 | static short do_blank = 0; /* (Un)Blank the screen */ | |
187 | ||
188 | static unsigned int is_blanked = 0; /* Is the screen blanked? */ | |
189 | ||
190 | #ifdef CONFIG_SH_STORE_QUEUES | |
d2b06a8b | 191 | static unsigned long pvr2fb_map; |
1da177e4 LT |
192 | #endif |
193 | ||
194 | #ifdef CONFIG_SH_DMA | |
195 | static unsigned int shdma = PVR2_CASCADE_CHAN; | |
196 | static unsigned int pvr2dma = ONCHIP_NR_DMA_CHANNELS; | |
197 | #endif | |
198 | ||
1da177e4 LT |
199 | static int pvr2fb_setcolreg(unsigned int regno, unsigned int red, unsigned int green, unsigned int blue, |
200 | unsigned int transp, struct fb_info *info); | |
201 | static int pvr2fb_blank(int blank, struct fb_info *info); | |
202 | static unsigned long get_line_length(int xres_virtual, int bpp); | |
203 | static void set_color_bitfields(struct fb_var_screeninfo *var); | |
204 | static int pvr2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info); | |
205 | static int pvr2fb_set_par(struct fb_info *info); | |
206 | static void pvr2_update_display(struct fb_info *info); | |
207 | static void pvr2_init_display(struct fb_info *info); | |
208 | static void pvr2_do_blank(void); | |
7d12e780 | 209 | static irqreturn_t pvr2fb_interrupt(int irq, void *dev_id); |
1da177e4 LT |
210 | static int pvr2_init_cable(void); |
211 | static int pvr2_get_param(const struct pvr2_params *p, const char *s, | |
212 | int val, int size); | |
d2b06a8b | 213 | #ifdef CONFIG_SH_DMA |
3f9b0880 | 214 | static ssize_t pvr2fb_write(struct fb_info *info, const char *buf, |
1da177e4 | 215 | size_t count, loff_t *ppos); |
d2b06a8b | 216 | #endif |
1da177e4 LT |
217 | |
218 | static struct fb_ops pvr2fb_ops = { | |
d2b06a8b PM |
219 | .owner = THIS_MODULE, |
220 | .fb_setcolreg = pvr2fb_setcolreg, | |
221 | .fb_blank = pvr2fb_blank, | |
222 | .fb_check_var = pvr2fb_check_var, | |
223 | .fb_set_par = pvr2fb_set_par, | |
1da177e4 LT |
224 | #ifdef CONFIG_SH_DMA |
225 | .fb_write = pvr2fb_write, | |
226 | #endif | |
e9705a77 | 227 | .fb_fillrect = cfb_fillrect, |
1da177e4 LT |
228 | .fb_copyarea = cfb_copyarea, |
229 | .fb_imageblit = cfb_imageblit, | |
1da177e4 LT |
230 | }; |
231 | ||
7e7ec0d4 | 232 | static struct fb_videomode pvr2_modedb[] __devinitdata = { |
1da177e4 LT |
233 | /* |
234 | * Broadcast video modes (PAL and NTSC). I'm unfamiliar with | |
235 | * PAL-M and PAL-N, but from what I've read both modes parallel PAL and | |
236 | * NTSC, so it shouldn't be a problem (I hope). | |
237 | */ | |
238 | ||
239 | { | |
240 | /* 640x480 @ 60Hz interlaced (NTSC) */ | |
241 | "ntsc_640x480i", 60, 640, 480, TV_CLK, 38, 33, 0, 18, 146, 26, | |
242 | FB_SYNC_BROADCAST, FB_VMODE_INTERLACED | FB_VMODE_YWRAP | |
243 | }, { | |
244 | /* 640x240 @ 60Hz (NTSC) */ | |
245 | /* XXX: Broken! Don't use... */ | |
246 | "ntsc_640x240", 60, 640, 240, TV_CLK, 38, 33, 0, 0, 146, 22, | |
247 | FB_SYNC_BROADCAST, FB_VMODE_YWRAP | |
248 | }, { | |
249 | /* 640x480 @ 60hz (VGA) */ | |
250 | "vga_640x480", 60, 640, 480, VGA_CLK, 38, 33, 0, 18, 146, 26, | |
251 | 0, FB_VMODE_YWRAP | |
e9705a77 | 252 | }, |
1da177e4 LT |
253 | }; |
254 | ||
255 | #define NUM_TOTAL_MODES ARRAY_SIZE(pvr2_modedb) | |
256 | ||
257 | #define DEFMODE_NTSC 0 | |
258 | #define DEFMODE_PAL 0 | |
259 | #define DEFMODE_VGA 2 | |
260 | ||
261 | static int defmode = DEFMODE_NTSC; | |
7e7ec0d4 | 262 | static char *mode_option __devinitdata = NULL; |
1da177e4 LT |
263 | |
264 | static inline void pvr2fb_set_pal_type(unsigned int type) | |
265 | { | |
266 | struct pvr2fb_par *par = (struct pvr2fb_par *)fb_info->par; | |
267 | ||
268 | fb_writel(type, par->mmio_base + 0x108); | |
269 | } | |
270 | ||
271 | static inline void pvr2fb_set_pal_entry(struct pvr2fb_par *par, | |
272 | unsigned int regno, | |
273 | unsigned int val) | |
274 | { | |
275 | fb_writel(val, par->mmio_base + 0x1000 + (4 * regno)); | |
276 | } | |
277 | ||
278 | static int pvr2fb_blank(int blank, struct fb_info *info) | |
279 | { | |
280 | do_blank = blank ? blank : -1; | |
281 | return 0; | |
282 | } | |
283 | ||
284 | static inline unsigned long get_line_length(int xres_virtual, int bpp) | |
285 | { | |
286 | return (unsigned long)((((xres_virtual*bpp)+31)&~31) >> 3); | |
287 | } | |
288 | ||
289 | static void set_color_bitfields(struct fb_var_screeninfo *var) | |
290 | { | |
291 | switch (var->bits_per_pixel) { | |
292 | case 16: /* RGB 565 */ | |
e9705a77 | 293 | pvr2fb_set_pal_type(PAL_RGB565); |
1da177e4 LT |
294 | var->red.offset = 11; var->red.length = 5; |
295 | var->green.offset = 5; var->green.length = 6; | |
296 | var->blue.offset = 0; var->blue.length = 5; | |
297 | var->transp.offset = 0; var->transp.length = 0; | |
298 | break; | |
299 | case 24: /* RGB 888 */ | |
300 | var->red.offset = 16; var->red.length = 8; | |
301 | var->green.offset = 8; var->green.length = 8; | |
302 | var->blue.offset = 0; var->blue.length = 8; | |
303 | var->transp.offset = 0; var->transp.length = 0; | |
304 | break; | |
305 | case 32: /* ARGB 8888 */ | |
e9705a77 | 306 | pvr2fb_set_pal_type(PAL_ARGB8888); |
1da177e4 LT |
307 | var->red.offset = 16; var->red.length = 8; |
308 | var->green.offset = 8; var->green.length = 8; | |
309 | var->blue.offset = 0; var->blue.length = 8; | |
310 | var->transp.offset = 24; var->transp.length = 8; | |
311 | break; | |
312 | } | |
313 | } | |
314 | ||
315 | static int pvr2fb_setcolreg(unsigned int regno, unsigned int red, | |
316 | unsigned int green, unsigned int blue, | |
317 | unsigned int transp, struct fb_info *info) | |
318 | { | |
319 | struct pvr2fb_par *par = (struct pvr2fb_par *)info->par; | |
320 | unsigned int tmp; | |
321 | ||
322 | if (regno > info->cmap.len) | |
323 | return 1; | |
324 | ||
325 | /* | |
326 | * We only support the hardware palette for 16 and 32bpp. It's also | |
327 | * expected that the palette format has been set by the time we get | |
328 | * here, so we don't waste time setting it again. | |
329 | */ | |
330 | switch (info->var.bits_per_pixel) { | |
331 | case 16: /* RGB 565 */ | |
332 | tmp = (red & 0xf800) | | |
333 | ((green & 0xfc00) >> 5) | | |
334 | ((blue & 0xf800) >> 11); | |
335 | ||
336 | pvr2fb_set_pal_entry(par, regno, tmp); | |
1da177e4 LT |
337 | break; |
338 | case 24: /* RGB 888 */ | |
339 | red >>= 8; green >>= 8; blue >>= 8; | |
a66ad56e | 340 | tmp = (red << 16) | (green << 8) | blue; |
1da177e4 LT |
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); | |
1da177e4 LT |
347 | break; |
348 | default: | |
349 | pr_debug("Invalid bit depth %d?!?\n", info->var.bits_per_pixel); | |
350 | return 1; | |
351 | } | |
352 | ||
a66ad56e AD |
353 | if (regno < 16) |
354 | ((u32*)(info->pseudo_palette))[regno] = tmp; | |
355 | ||
1da177e4 LT |
356 | return 0; |
357 | } | |
358 | ||
359 | static int pvr2fb_set_par(struct fb_info *info) | |
360 | { | |
361 | struct pvr2fb_par *par = (struct pvr2fb_par *)info->par; | |
362 | struct fb_var_screeninfo *var = &info->var; | |
363 | unsigned long line_length; | |
364 | unsigned int vtotal; | |
365 | ||
366 | /* | |
367 | * XXX: It's possible that a user could use a VGA box, change the cable | |
368 | * type in hardware (i.e. switch from VGA<->composite), then change | |
369 | * modes (i.e. switching to another VT). If that happens we should | |
370 | * automagically change the output format to cope, but currently I | |
371 | * don't have a VGA box to make sure this works properly. | |
372 | */ | |
373 | cable_type = pvr2_init_cable(); | |
374 | if (cable_type == CT_VGA && video_output != VO_VGA) | |
375 | video_output = VO_VGA; | |
376 | ||
377 | var->vmode &= FB_VMODE_MASK; | |
378 | if (var->vmode & FB_VMODE_INTERLACED && video_output != VO_VGA) | |
379 | par->is_interlaced = 1; | |
e9705a77 | 380 | /* |
1da177e4 LT |
381 | * XXX: Need to be more creative with this (i.e. allow doublecan for |
382 | * PAL/NTSC output). | |
383 | */ | |
384 | if (var->vmode & FB_VMODE_DOUBLE && video_output == VO_VGA) | |
385 | par->is_doublescan = 1; | |
e9705a77 | 386 | |
1da177e4 LT |
387 | par->hsync_total = var->left_margin + var->xres + var->right_margin + |
388 | var->hsync_len; | |
389 | par->vsync_total = var->upper_margin + var->yres + var->lower_margin + | |
390 | var->vsync_len; | |
391 | ||
392 | if (var->sync & FB_SYNC_BROADCAST) { | |
393 | vtotal = par->vsync_total; | |
394 | if (par->is_interlaced) | |
395 | vtotal /= 2; | |
396 | if (vtotal > (PAL_VTOTAL + NTSC_VTOTAL)/2) { | |
397 | /* XXX: Check for start values here... */ | |
398 | /* XXX: Check hardware for PAL-compatibility */ | |
399 | par->borderstart_h = 116; | |
400 | par->borderstart_v = 44; | |
401 | } else { | |
402 | /* NTSC video output */ | |
403 | par->borderstart_h = 126; | |
404 | par->borderstart_v = 18; | |
405 | } | |
406 | } else { | |
407 | /* VGA mode */ | |
408 | /* XXX: What else needs to be checked? */ | |
e9705a77 | 409 | /* |
1da177e4 LT |
410 | * XXX: We have a little freedom in VGA modes, what ranges |
411 | * should be here (i.e. hsync/vsync totals, etc.)? | |
412 | */ | |
413 | par->borderstart_h = 126; | |
414 | par->borderstart_v = 40; | |
415 | } | |
416 | ||
417 | /* Calculate the remainding offsets */ | |
418 | par->diwstart_h = par->borderstart_h + var->left_margin; | |
419 | par->diwstart_v = par->borderstart_v + var->upper_margin; | |
e9705a77 PM |
420 | par->borderstop_h = par->diwstart_h + var->xres + |
421 | var->right_margin; | |
1da177e4 LT |
422 | par->borderstop_v = par->diwstart_v + var->yres + |
423 | var->lower_margin; | |
424 | ||
425 | if (!par->is_interlaced) | |
426 | par->borderstop_v /= 2; | |
427 | if (info->var.xres < 640) | |
428 | par->is_lowres = 1; | |
429 | ||
430 | line_length = get_line_length(var->xres_virtual, var->bits_per_pixel); | |
431 | par->disp_start = info->fix.smem_start + (line_length * var->yoffset) * line_length; | |
432 | info->fix.line_length = line_length; | |
433 | return 0; | |
434 | } | |
435 | ||
436 | static int pvr2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) | |
437 | { | |
438 | struct pvr2fb_par *par = (struct pvr2fb_par *)info->par; | |
439 | unsigned int vtotal, hsync_total; | |
440 | unsigned long line_length; | |
441 | ||
442 | if (var->pixclock != TV_CLK && var->pixclock != VGA_CLK) { | |
443 | pr_debug("Invalid pixclock value %d\n", var->pixclock); | |
444 | return -EINVAL; | |
445 | } | |
446 | ||
447 | if (var->xres < 320) | |
448 | var->xres = 320; | |
449 | if (var->yres < 240) | |
450 | var->yres = 240; | |
451 | if (var->xres_virtual < var->xres) | |
452 | var->xres_virtual = var->xres; | |
453 | if (var->yres_virtual < var->yres) | |
454 | var->yres_virtual = var->yres; | |
455 | ||
456 | if (var->bits_per_pixel <= 16) | |
457 | var->bits_per_pixel = 16; | |
458 | else if (var->bits_per_pixel <= 24) | |
459 | var->bits_per_pixel = 24; | |
460 | else if (var->bits_per_pixel <= 32) | |
461 | var->bits_per_pixel = 32; | |
462 | ||
463 | set_color_bitfields(var); | |
464 | ||
465 | if (var->vmode & FB_VMODE_YWRAP) { | |
e9705a77 | 466 | if (var->xoffset || var->yoffset < 0 || |
1da177e4 LT |
467 | var->yoffset >= var->yres_virtual) { |
468 | var->xoffset = var->yoffset = 0; | |
469 | } else { | |
470 | if (var->xoffset > var->xres_virtual - var->xres || | |
e9705a77 | 471 | var->yoffset > var->yres_virtual - var->yres || |
1da177e4 LT |
472 | var->xoffset < 0 || var->yoffset < 0) |
473 | var->xoffset = var->yoffset = 0; | |
474 | } | |
475 | } else { | |
476 | var->xoffset = var->yoffset = 0; | |
477 | } | |
478 | ||
e9705a77 | 479 | /* |
1da177e4 LT |
480 | * XXX: Need to be more creative with this (i.e. allow doublecan for |
481 | * PAL/NTSC output). | |
482 | */ | |
483 | if (var->yres < 480 && video_output == VO_VGA) | |
484 | var->vmode |= FB_VMODE_DOUBLE; | |
485 | ||
486 | if (video_output != VO_VGA) { | |
487 | var->sync |= FB_SYNC_BROADCAST; | |
488 | var->vmode |= FB_VMODE_INTERLACED; | |
489 | } else { | |
490 | var->sync &= ~FB_SYNC_BROADCAST; | |
491 | var->vmode &= ~FB_VMODE_INTERLACED; | |
492 | var->vmode |= pvr2_var.vmode; | |
493 | } | |
494 | ||
495 | if ((var->activate & FB_ACTIVATE_MASK) != FB_ACTIVATE_TEST) { | |
496 | var->right_margin = par->borderstop_h - | |
497 | (par->diwstart_h + var->xres); | |
498 | var->left_margin = par->diwstart_h - par->borderstart_h; | |
499 | var->hsync_len = par->borderstart_h + | |
500 | (par->hsync_total - par->borderstop_h); | |
501 | ||
502 | var->upper_margin = par->diwstart_v - par->borderstart_v; | |
503 | var->lower_margin = par->borderstop_v - | |
504 | (par->diwstart_v + var->yres); | |
505 | var->vsync_len = par->borderstop_v + | |
506 | (par->vsync_total - par->borderstop_v); | |
507 | } | |
e9705a77 | 508 | |
1da177e4 LT |
509 | hsync_total = var->left_margin + var->xres + var->right_margin + |
510 | var->hsync_len; | |
511 | vtotal = var->upper_margin + var->yres + var->lower_margin + | |
512 | var->vsync_len; | |
513 | ||
514 | if (var->sync & FB_SYNC_BROADCAST) { | |
515 | if (var->vmode & FB_VMODE_INTERLACED) | |
516 | vtotal /= 2; | |
517 | if (vtotal > (PAL_VTOTAL + NTSC_VTOTAL)/2) { | |
518 | /* PAL video output */ | |
519 | /* XXX: Should be using a range here ... ? */ | |
520 | if (hsync_total != PAL_HTOTAL) { | |
521 | pr_debug("invalid hsync total for PAL\n"); | |
522 | return -EINVAL; | |
523 | } | |
524 | } else { | |
525 | /* NTSC video output */ | |
526 | if (hsync_total != NTSC_HTOTAL) { | |
527 | pr_debug("invalid hsync total for NTSC\n"); | |
528 | return -EINVAL; | |
529 | } | |
530 | } | |
531 | } | |
e9705a77 | 532 | |
1da177e4 LT |
533 | /* Check memory sizes */ |
534 | line_length = get_line_length(var->xres_virtual, var->bits_per_pixel); | |
535 | if (line_length * var->yres_virtual > info->fix.smem_len) | |
536 | return -ENOMEM; | |
537 | ||
538 | return 0; | |
539 | } | |
540 | ||
541 | static void pvr2_update_display(struct fb_info *info) | |
542 | { | |
543 | struct pvr2fb_par *par = (struct pvr2fb_par *) info->par; | |
544 | struct fb_var_screeninfo *var = &info->var; | |
545 | ||
546 | /* Update the start address of the display image */ | |
547 | fb_writel(par->disp_start, DISP_DIWADDRL); | |
548 | fb_writel(par->disp_start + | |
549 | get_line_length(var->xoffset+var->xres, var->bits_per_pixel), | |
550 | DISP_DIWADDRS); | |
551 | } | |
552 | ||
e9705a77 | 553 | /* |
1da177e4 LT |
554 | * Initialize the video mode. Currently, the 16bpp and 24bpp modes aren't |
555 | * very stable. It's probably due to the fact that a lot of the 2D video | |
556 | * registers are still undocumented. | |
557 | */ | |
558 | ||
559 | static void pvr2_init_display(struct fb_info *info) | |
560 | { | |
561 | struct pvr2fb_par *par = (struct pvr2fb_par *) info->par; | |
562 | struct fb_var_screeninfo *var = &info->var; | |
563 | unsigned int diw_height, diw_width, diw_modulo = 1; | |
564 | unsigned int bytesperpixel = var->bits_per_pixel >> 3; | |
565 | ||
566 | /* hsync and vsync totals */ | |
567 | fb_writel((par->vsync_total << 16) | par->hsync_total, DISP_SYNCSIZE); | |
568 | ||
569 | /* column height, modulo, row width */ | |
570 | /* since we're "panning" within vram, we need to offset things based | |
571 | * on the offset from the virtual x start to our real gfx. */ | |
572 | if (video_output != VO_VGA && par->is_interlaced) | |
573 | diw_modulo += info->fix.line_length / 4; | |
574 | diw_height = (par->is_interlaced ? var->yres / 2 : var->yres); | |
575 | diw_width = get_line_length(var->xres, var->bits_per_pixel) / 4; | |
576 | fb_writel((diw_modulo << 20) | (--diw_height << 10) | --diw_width, | |
577 | DISP_DIWSIZE); | |
578 | ||
579 | /* display address, long and short fields */ | |
580 | fb_writel(par->disp_start, DISP_DIWADDRL); | |
581 | fb_writel(par->disp_start + | |
582 | get_line_length(var->xoffset+var->xres, var->bits_per_pixel), | |
583 | DISP_DIWADDRS); | |
584 | ||
585 | /* border horizontal, border vertical, border color */ | |
586 | fb_writel((par->borderstart_h << 16) | par->borderstop_h, DISP_BRDRHORZ); | |
587 | fb_writel((par->borderstart_v << 16) | par->borderstop_v, DISP_BRDRVERT); | |
588 | fb_writel(0, DISP_BRDRCOLR); | |
589 | ||
590 | /* display window start position */ | |
591 | fb_writel(par->diwstart_h, DISP_DIWHSTRT); | |
592 | fb_writel((par->diwstart_v << 16) | par->diwstart_v, DISP_DIWVSTRT); | |
e9705a77 | 593 | |
1da177e4 LT |
594 | /* misc. settings */ |
595 | fb_writel((0x16 << 16) | par->is_lowres, DISP_DIWCONF); | |
596 | ||
597 | /* clock doubler (for VGA), scan doubler, display enable */ | |
e9705a77 | 598 | fb_writel(((video_output == VO_VGA) << 23) | |
1da177e4 LT |
599 | (par->is_doublescan << 1) | 1, DISP_DIWMODE); |
600 | ||
601 | /* bits per pixel */ | |
602 | fb_writel(fb_readl(DISP_DIWMODE) | (--bytesperpixel << 2), DISP_DIWMODE); | |
603 | ||
e9705a77 | 604 | /* video enable, color sync, interlace, |
1da177e4 LT |
605 | * hsync and vsync polarity (currently unused) */ |
606 | fb_writel(0x100 | ((par->is_interlaced /*|4*/) << 4), DISP_SYNCCONF); | |
607 | } | |
608 | ||
609 | /* Simulate blanking by making the border cover the entire screen */ | |
610 | ||
611 | #define BLANK_BIT (1<<3) | |
612 | ||
613 | static void pvr2_do_blank(void) | |
614 | { | |
615 | struct pvr2fb_par *par = currentpar; | |
616 | unsigned long diwconf; | |
617 | ||
618 | diwconf = fb_readl(DISP_DIWCONF); | |
619 | if (do_blank > 0) | |
620 | fb_writel(diwconf | BLANK_BIT, DISP_DIWCONF); | |
621 | else | |
622 | fb_writel(diwconf & ~BLANK_BIT, DISP_DIWCONF); | |
623 | ||
624 | is_blanked = do_blank > 0 ? do_blank : 0; | |
625 | } | |
626 | ||
7d12e780 | 627 | static irqreturn_t pvr2fb_interrupt(int irq, void *dev_id) |
1da177e4 LT |
628 | { |
629 | struct fb_info *info = dev_id; | |
630 | ||
631 | if (do_vmode_pan || do_vmode_full) | |
632 | pvr2_update_display(info); | |
633 | if (do_vmode_full) | |
634 | pvr2_init_display(info); | |
635 | if (do_vmode_pan) | |
636 | do_vmode_pan = 0; | |
637 | if (do_vmode_full) | |
638 | do_vmode_full = 0; | |
639 | if (do_blank) { | |
640 | pvr2_do_blank(); | |
641 | do_blank = 0; | |
642 | } | |
643 | return IRQ_HANDLED; | |
644 | } | |
645 | ||
646 | /* | |
647 | * Determine the cable type and initialize the cable output format. Don't do | |
648 | * anything if the cable type has been overidden (via "cable:XX"). | |
649 | */ | |
650 | ||
651 | #define PCTRA 0xff80002c | |
652 | #define PDTRA 0xff800030 | |
653 | #define VOUTC 0xa0702c00 | |
654 | ||
655 | static int pvr2_init_cable(void) | |
656 | { | |
657 | if (cable_type < 0) { | |
e9705a77 | 658 | fb_writel((fb_readl(PCTRA) & 0xfff0ffff) | 0x000a0000, |
1da177e4 LT |
659 | PCTRA); |
660 | cable_type = (fb_readw(PDTRA) >> 8) & 3; | |
661 | } | |
662 | ||
663 | /* Now select the output format (either composite or other) */ | |
664 | /* XXX: Save the previous val first, as this reg is also AICA | |
665 | related */ | |
666 | if (cable_type == CT_COMPOSITE) | |
667 | fb_writel(3 << 8, VOUTC); | |
668 | else | |
669 | fb_writel(0, VOUTC); | |
670 | ||
671 | return cable_type; | |
672 | } | |
673 | ||
674 | #ifdef CONFIG_SH_DMA | |
3f9b0880 | 675 | static ssize_t pvr2fb_write(struct fb_info *info, const char *buf, |
1da177e4 LT |
676 | size_t count, loff_t *ppos) |
677 | { | |
678 | unsigned long dst, start, end, len; | |
679 | unsigned int nr_pages; | |
680 | struct page **pages; | |
681 | int ret, i; | |
682 | ||
683 | nr_pages = (count + PAGE_SIZE - 1) >> PAGE_SHIFT; | |
684 | ||
685 | pages = kmalloc(nr_pages * sizeof(struct page *), GFP_KERNEL); | |
686 | if (!pages) | |
687 | return -ENOMEM; | |
e9705a77 | 688 | |
1da177e4 LT |
689 | down_read(¤t->mm->mmap_sem); |
690 | ret = get_user_pages(current, current->mm, (unsigned long)buf, | |
691 | nr_pages, WRITE, 0, pages, NULL); | |
692 | up_read(¤t->mm->mmap_sem); | |
693 | ||
694 | if (ret < nr_pages) { | |
695 | nr_pages = ret; | |
696 | ret = -EINVAL; | |
697 | goto out_unmap; | |
698 | } | |
699 | ||
700 | dma_configure_channel(shdma, 0x12c1); | |
e9705a77 | 701 | |
1da177e4 LT |
702 | dst = (unsigned long)fb_info->screen_base + *ppos; |
703 | start = (unsigned long)page_address(pages[0]); | |
704 | end = (unsigned long)page_address(pages[nr_pages]); | |
705 | len = nr_pages << PAGE_SHIFT; | |
706 | ||
707 | /* Half-assed contig check */ | |
708 | if (start + len == end) { | |
709 | /* As we do this in one shot, it's either all or nothing.. */ | |
710 | if ((*ppos + len) > fb_info->fix.smem_len) { | |
711 | ret = -ENOSPC; | |
712 | goto out_unmap; | |
713 | } | |
714 | ||
715 | dma_write(shdma, start, 0, len); | |
716 | dma_write(pvr2dma, 0, dst, len); | |
717 | dma_wait_for_completion(pvr2dma); | |
718 | ||
719 | goto out; | |
720 | } | |
721 | ||
722 | /* Not contiguous, writeout per-page instead.. */ | |
723 | for (i = 0; i < nr_pages; i++, dst += PAGE_SIZE) { | |
724 | if ((*ppos + (i << PAGE_SHIFT)) > fb_info->fix.smem_len) { | |
725 | ret = -ENOSPC; | |
726 | goto out_unmap; | |
727 | } | |
728 | ||
729 | dma_write_page(shdma, (unsigned long)page_address(pages[i]), 0); | |
730 | dma_write_page(pvr2dma, 0, dst); | |
731 | dma_wait_for_completion(pvr2dma); | |
732 | } | |
733 | ||
734 | out: | |
735 | *ppos += count; | |
736 | ret = count; | |
737 | ||
738 | out_unmap: | |
739 | for (i = 0; i < nr_pages; i++) | |
740 | page_cache_release(pages[i]); | |
741 | ||
742 | kfree(pages); | |
743 | ||
744 | return ret; | |
e9705a77 | 745 | } |
1da177e4 LT |
746 | #endif /* CONFIG_SH_DMA */ |
747 | ||
748 | /** | |
749 | * pvr2fb_common_init | |
750 | * | |
751 | * Common init code for the PVR2 chips. | |
752 | * | |
753 | * This mostly takes care of the common aspects of the fb setup and | |
754 | * registration. It's expected that the board-specific init code has | |
755 | * already setup pvr2_fix with something meaningful at this point. | |
756 | * | |
757 | * Device info reporting is also done here, as well as picking a sane | |
758 | * default from the modedb. For board-specific modelines, simply define | |
759 | * a per-board modedb. | |
760 | * | |
761 | * Also worth noting is that the cable and video output types are likely | |
762 | * always going to be VGA for the PCI-based PVR2 boards, but we leave this | |
763 | * in for flexibility anyways. Who knows, maybe someone has tv-out on a | |
764 | * PCI-based version of these things ;-) | |
765 | */ | |
7e7ec0d4 | 766 | static int __devinit pvr2fb_common_init(void) |
1da177e4 LT |
767 | { |
768 | struct pvr2fb_par *par = currentpar; | |
769 | unsigned long modememused, rev; | |
770 | ||
771 | fb_info->screen_base = ioremap_nocache(pvr2_fix.smem_start, | |
772 | pvr2_fix.smem_len); | |
e9705a77 | 773 | |
1da177e4 LT |
774 | if (!fb_info->screen_base) { |
775 | printk(KERN_ERR "pvr2fb: Failed to remap smem space\n"); | |
776 | goto out_err; | |
777 | } | |
778 | ||
779 | par->mmio_base = (unsigned long)ioremap_nocache(pvr2_fix.mmio_start, | |
e9705a77 | 780 | pvr2_fix.mmio_len); |
1da177e4 LT |
781 | if (!par->mmio_base) { |
782 | printk(KERN_ERR "pvr2fb: Failed to remap mmio space\n"); | |
783 | goto out_err; | |
784 | } | |
785 | ||
d2b06a8b | 786 | fb_memset(fb_info->screen_base, 0, pvr2_fix.smem_len); |
1da177e4 LT |
787 | |
788 | pvr2_fix.ypanstep = nopan ? 0 : 1; | |
789 | pvr2_fix.ywrapstep = nowrap ? 0 : 1; | |
790 | ||
791 | fb_info->fbops = &pvr2fb_ops; | |
792 | fb_info->fix = pvr2_fix; | |
793 | fb_info->par = currentpar; | |
9cd1c674 | 794 | fb_info->pseudo_palette = currentpar->palette; |
1da177e4 LT |
795 | fb_info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; |
796 | ||
797 | if (video_output == VO_VGA) | |
798 | defmode = DEFMODE_VGA; | |
799 | ||
800 | if (!mode_option) | |
801 | mode_option = "640x480@60"; | |
802 | ||
803 | if (!fb_find_mode(&fb_info->var, fb_info, mode_option, pvr2_modedb, | |
804 | NUM_TOTAL_MODES, &pvr2_modedb[defmode], 16)) | |
805 | fb_info->var = pvr2_var; | |
806 | ||
807 | fb_alloc_cmap(&fb_info->cmap, 256, 0); | |
808 | ||
809 | if (register_framebuffer(fb_info) < 0) | |
810 | goto out_err; | |
811 | ||
812 | modememused = get_line_length(fb_info->var.xres_virtual, | |
813 | fb_info->var.bits_per_pixel); | |
814 | modememused *= fb_info->var.yres_virtual; | |
815 | ||
816 | rev = fb_readl(par->mmio_base + 0x04); | |
817 | ||
818 | printk("fb%d: %s (rev %ld.%ld) frame buffer device, using %ldk/%ldk of video memory\n", | |
819 | fb_info->node, fb_info->fix.id, (rev >> 4) & 0x0f, rev & 0x0f, | |
820 | modememused >> 10, (unsigned long)(fb_info->fix.smem_len >> 10)); | |
e9705a77 | 821 | printk("fb%d: Mode %dx%d-%d pitch = %ld cable: %s video output: %s\n", |
1da177e4 | 822 | fb_info->node, fb_info->var.xres, fb_info->var.yres, |
d2b06a8b | 823 | fb_info->var.bits_per_pixel, |
1da177e4 LT |
824 | get_line_length(fb_info->var.xres, fb_info->var.bits_per_pixel), |
825 | (char *)pvr2_get_param(cables, NULL, cable_type, 3), | |
826 | (char *)pvr2_get_param(outputs, NULL, video_output, 3)); | |
827 | ||
828 | #ifdef CONFIG_SH_STORE_QUEUES | |
829 | printk(KERN_NOTICE "fb%d: registering with SQ API\n", fb_info->node); | |
830 | ||
831 | pvr2fb_map = sq_remap(fb_info->fix.smem_start, fb_info->fix.smem_len, | |
d2b06a8b | 832 | fb_info->fix.id, pgprot_val(PAGE_SHARED)); |
1da177e4 LT |
833 | |
834 | printk(KERN_NOTICE "fb%d: Mapped video memory to SQ addr 0x%lx\n", | |
d2b06a8b | 835 | fb_info->node, pvr2fb_map); |
1da177e4 LT |
836 | #endif |
837 | ||
838 | return 0; | |
839 | ||
840 | out_err: | |
841 | if (fb_info->screen_base) | |
842 | iounmap(fb_info->screen_base); | |
843 | if (par->mmio_base) | |
844 | iounmap((void *)par->mmio_base); | |
845 | ||
846 | return -ENXIO; | |
847 | } | |
848 | ||
849 | #ifdef CONFIG_SH_DREAMCAST | |
850 | static int __init pvr2fb_dc_init(void) | |
851 | { | |
852 | if (!mach_is_dreamcast()) | |
853 | return -ENXIO; | |
854 | ||
855 | /* Make a guess at the monitor based on the attached cable */ | |
856 | if (pvr2_init_cable() == CT_VGA) { | |
857 | fb_info->monspecs.hfmin = 30000; | |
858 | fb_info->monspecs.hfmax = 70000; | |
859 | fb_info->monspecs.vfmin = 60; | |
860 | fb_info->monspecs.vfmax = 60; | |
861 | } else { | |
862 | /* Not VGA, using a TV (taken from acornfb) */ | |
863 | fb_info->monspecs.hfmin = 15469; | |
864 | fb_info->monspecs.hfmax = 15781; | |
865 | fb_info->monspecs.vfmin = 49; | |
866 | fb_info->monspecs.vfmax = 51; | |
867 | } | |
868 | ||
869 | /* | |
870 | * XXX: This needs to pull default video output via BIOS or other means | |
871 | */ | |
872 | if (video_output < 0) { | |
873 | if (cable_type == CT_VGA) { | |
874 | video_output = VO_VGA; | |
875 | } else { | |
876 | video_output = VO_NTSC; | |
877 | } | |
878 | } | |
e9705a77 PM |
879 | |
880 | /* | |
1da177e4 LT |
881 | * Nothing exciting about the DC PVR2 .. only a measly 8MiB. |
882 | */ | |
883 | pvr2_fix.smem_start = 0xa5000000; /* RAM starts here */ | |
884 | pvr2_fix.smem_len = 8 << 20; | |
885 | ||
886 | pvr2_fix.mmio_start = 0xa05f8000; /* registers start here */ | |
887 | pvr2_fix.mmio_len = 0x2000; | |
888 | ||
889 | if (request_irq(HW_EVENT_VSYNC, pvr2fb_interrupt, 0, | |
890 | "pvr2 VBL handler", fb_info)) { | |
891 | return -EBUSY; | |
892 | } | |
893 | ||
894 | #ifdef CONFIG_SH_DMA | |
895 | if (request_dma(pvr2dma, "pvr2") != 0) { | |
896 | free_irq(HW_EVENT_VSYNC, 0); | |
897 | return -EBUSY; | |
898 | } | |
899 | #endif | |
900 | ||
901 | return pvr2fb_common_init(); | |
902 | } | |
903 | ||
e9705a77 | 904 | static void __exit pvr2fb_dc_exit(void) |
1da177e4 | 905 | { |
295a1b47 AL |
906 | if (fb_info->screen_base) { |
907 | iounmap(fb_info->screen_base); | |
908 | fb_info->screen_base = NULL; | |
909 | } | |
910 | if (currentpar->mmio_base) { | |
911 | iounmap((void *)currentpar->mmio_base); | |
912 | currentpar->mmio_base = 0; | |
913 | } | |
914 | ||
1da177e4 LT |
915 | free_irq(HW_EVENT_VSYNC, 0); |
916 | #ifdef CONFIG_SH_DMA | |
917 | free_dma(pvr2dma); | |
918 | #endif | |
919 | } | |
920 | #endif /* CONFIG_SH_DREAMCAST */ | |
921 | ||
922 | #ifdef CONFIG_PCI | |
923 | static int __devinit pvr2fb_pci_probe(struct pci_dev *pdev, | |
924 | const struct pci_device_id *ent) | |
925 | { | |
926 | int ret; | |
927 | ||
928 | ret = pci_enable_device(pdev); | |
929 | if (ret) { | |
930 | printk(KERN_ERR "pvr2fb: PCI enable failed\n"); | |
931 | return ret; | |
932 | } | |
933 | ||
934 | ret = pci_request_regions(pdev, "pvr2fb"); | |
935 | if (ret) { | |
936 | printk(KERN_ERR "pvr2fb: PCI request regions failed\n"); | |
937 | return ret; | |
938 | } | |
939 | ||
940 | /* | |
941 | * Slightly more exciting than the DC PVR2 .. 16MiB! | |
942 | */ | |
943 | pvr2_fix.smem_start = pci_resource_start(pdev, 0); | |
944 | pvr2_fix.smem_len = pci_resource_len(pdev, 0); | |
945 | ||
946 | pvr2_fix.mmio_start = pci_resource_start(pdev, 1); | |
947 | pvr2_fix.mmio_len = pci_resource_len(pdev, 1); | |
948 | ||
949 | fb_info->device = &pdev->dev; | |
950 | ||
951 | return pvr2fb_common_init(); | |
952 | } | |
953 | ||
954 | static void __devexit pvr2fb_pci_remove(struct pci_dev *pdev) | |
955 | { | |
295a1b47 AL |
956 | if (fb_info->screen_base) { |
957 | iounmap(fb_info->screen_base); | |
958 | fb_info->screen_base = NULL; | |
959 | } | |
960 | if (currentpar->mmio_base) { | |
961 | iounmap((void *)currentpar->mmio_base); | |
962 | currentpar->mmio_base = 0; | |
963 | } | |
964 | ||
1da177e4 LT |
965 | pci_release_regions(pdev); |
966 | } | |
967 | ||
968 | static struct pci_device_id pvr2fb_pci_tbl[] __devinitdata = { | |
969 | { PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_NEON250, | |
970 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | |
971 | { 0, }, | |
972 | }; | |
973 | ||
974 | MODULE_DEVICE_TABLE(pci, pvr2fb_pci_tbl); | |
975 | ||
976 | static struct pci_driver pvr2fb_pci_driver = { | |
977 | .name = "pvr2fb", | |
978 | .id_table = pvr2fb_pci_tbl, | |
979 | .probe = pvr2fb_pci_probe, | |
980 | .remove = __devexit_p(pvr2fb_pci_remove), | |
981 | }; | |
982 | ||
983 | static int __init pvr2fb_pci_init(void) | |
984 | { | |
985 | return pci_register_driver(&pvr2fb_pci_driver); | |
986 | } | |
987 | ||
e9705a77 | 988 | static void __exit pvr2fb_pci_exit(void) |
1da177e4 LT |
989 | { |
990 | pci_unregister_driver(&pvr2fb_pci_driver); | |
991 | } | |
992 | #endif /* CONFIG_PCI */ | |
993 | ||
7e7ec0d4 | 994 | static int __devinit pvr2_get_param(const struct pvr2_params *p, const char *s, |
1da177e4 LT |
995 | int val, int size) |
996 | { | |
997 | int i; | |
998 | ||
999 | for (i = 0 ; i < size ; i++ ) { | |
1000 | if (s != NULL) { | |
1001 | if (!strnicmp(p[i].name, s, strlen(s))) | |
1002 | return p[i].val; | |
1003 | } else { | |
1004 | if (p[i].val == val) | |
1005 | return (int)p[i].name; | |
1006 | } | |
1007 | } | |
1008 | return -1; | |
1009 | } | |
1010 | ||
1011 | /* | |
1012 | * Parse command arguments. Supported arguments are: | |
1013 | * inverse Use inverse color maps | |
1014 | * cable:composite|rgb|vga Override the video cable type | |
1015 | * output:NTSC|PAL|VGA Override the video output format | |
1016 | * | |
1017 | * <xres>x<yres>[-<bpp>][@<refresh>] or, | |
1018 | * <name>[-<bpp>][@<refresh>] Startup using this video mode | |
1019 | */ | |
1020 | ||
1021 | #ifndef MODULE | |
e9705a77 | 1022 | static int __init pvr2fb_setup(char *options) |
1da177e4 LT |
1023 | { |
1024 | char *this_opt; | |
1025 | char cable_arg[80]; | |
1026 | char output_arg[80]; | |
1027 | ||
1028 | if (!options || !*options) | |
1029 | return 0; | |
1030 | ||
1031 | while ((this_opt = strsep(&options, ","))) { | |
1032 | if (!*this_opt) | |
1033 | continue; | |
1034 | if (!strcmp(this_opt, "inverse")) { | |
1035 | fb_invert_cmaps(); | |
1036 | } else if (!strncmp(this_opt, "cable:", 6)) { | |
1037 | strcpy(cable_arg, this_opt + 6); | |
1038 | } else if (!strncmp(this_opt, "output:", 7)) { | |
1039 | strcpy(output_arg, this_opt + 7); | |
1040 | } else if (!strncmp(this_opt, "nopan", 5)) { | |
1041 | nopan = 1; | |
1042 | } else if (!strncmp(this_opt, "nowrap", 6)) { | |
1043 | nowrap = 1; | |
1044 | } else { | |
1045 | mode_option = this_opt; | |
1046 | } | |
1047 | } | |
1048 | ||
1049 | if (*cable_arg) | |
1050 | cable_type = pvr2_get_param(cables, cable_arg, 0, 3); | |
1051 | if (*output_arg) | |
1052 | video_output = pvr2_get_param(outputs, output_arg, 0, 3); | |
1053 | ||
1054 | return 0; | |
1055 | } | |
1056 | #endif | |
1057 | ||
1058 | static struct pvr2_board { | |
1059 | int (*init)(void); | |
1060 | void (*exit)(void); | |
1061 | char name[16]; | |
e9705a77 | 1062 | } board_driver[] = { |
1da177e4 LT |
1063 | #ifdef CONFIG_SH_DREAMCAST |
1064 | { pvr2fb_dc_init, pvr2fb_dc_exit, "Sega DC PVR2" }, | |
1065 | #endif | |
1066 | #ifdef CONFIG_PCI | |
1067 | { pvr2fb_pci_init, pvr2fb_pci_exit, "PCI PVR2" }, | |
1068 | #endif | |
1069 | { 0, }, | |
1070 | }; | |
1071 | ||
e9705a77 | 1072 | static int __init pvr2fb_init(void) |
1da177e4 LT |
1073 | { |
1074 | int i, ret = -ENODEV; | |
1075 | int size; | |
1076 | ||
1077 | #ifndef MODULE | |
1078 | char *option = NULL; | |
1079 | ||
1080 | if (fb_get_options("pvr2fb", &option)) | |
1081 | return -ENODEV; | |
1082 | pvr2fb_setup(option); | |
1083 | #endif | |
1084 | size = sizeof(struct fb_info) + sizeof(struct pvr2fb_par) + 16 * sizeof(u32); | |
1085 | ||
9cd1c674 AD |
1086 | fb_info = framebuffer_alloc(sizeof(struct pvr2fb_par), NULL); |
1087 | ||
1da177e4 LT |
1088 | if (!fb_info) { |
1089 | printk(KERN_ERR "Failed to allocate memory for fb_info\n"); | |
1090 | return -ENOMEM; | |
1091 | } | |
1092 | ||
1da177e4 | 1093 | |
9cd1c674 | 1094 | currentpar = fb_info->par; |
1da177e4 | 1095 | |
e9705a77 PM |
1096 | for (i = 0; i < ARRAY_SIZE(board_driver); i++) { |
1097 | struct pvr2_board *pvr_board = board_driver + i; | |
1da177e4 LT |
1098 | |
1099 | if (!pvr_board->init) | |
1100 | continue; | |
1101 | ||
1102 | ret = pvr_board->init(); | |
1103 | ||
1104 | if (ret != 0) { | |
1105 | printk(KERN_ERR "pvr2fb: Failed init of %s device\n", | |
1106 | pvr_board->name); | |
9cd1c674 | 1107 | framebuffer_release(fb_info); |
1da177e4 LT |
1108 | break; |
1109 | } | |
1110 | } | |
1111 | ||
1112 | return ret; | |
1113 | } | |
1114 | ||
1115 | static void __exit pvr2fb_exit(void) | |
1116 | { | |
1117 | int i; | |
1118 | ||
e9705a77 PM |
1119 | for (i = 0; i < ARRAY_SIZE(board_driver); i++) { |
1120 | struct pvr2_board *pvr_board = board_driver + i; | |
1da177e4 LT |
1121 | |
1122 | if (pvr_board->exit) | |
1123 | pvr_board->exit(); | |
1124 | } | |
e9705a77 | 1125 | |
1da177e4 LT |
1126 | #ifdef CONFIG_SH_STORE_QUEUES |
1127 | sq_unmap(pvr2fb_map); | |
1128 | #endif | |
1129 | ||
1130 | unregister_framebuffer(fb_info); | |
9cd1c674 | 1131 | framebuffer_release(fb_info); |
1da177e4 LT |
1132 | } |
1133 | ||
1134 | module_init(pvr2fb_init); | |
1135 | module_exit(pvr2fb_exit); | |
1136 | ||
1137 | MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>, M. R. Brown <mrbrown@0xd6.org>"); | |
1138 | MODULE_DESCRIPTION("Framebuffer driver for NEC PowerVR 2 based graphics boards"); | |
1139 | MODULE_LICENSE("GPL"); |