blob: 45b883598bf02739083c19ba32106fe527dda081 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* tcx.c: TCX frame buffer driver
2 *
David S. Miller50312ce2006-06-29 14:35:52 -07003 * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 * Copyright (C) 1996,1998 Jakub Jelinek (jj@ultra.linux.cz)
5 * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx)
6 * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be)
7 *
8 * Driver layout based loosely on tgafb.c, see that file for credits.
9 */
10
11#include <linux/module.h>
12#include <linux/kernel.h>
13#include <linux/errno.h>
14#include <linux/string.h>
15#include <linux/slab.h>
16#include <linux/delay.h>
17#include <linux/init.h>
18#include <linux/fb.h>
19#include <linux/mm.h>
Robert Reif6cd5a862008-05-08 21:37:30 -070020#include <linux/of_device.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070021
22#include <asm/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#include <asm/fbio.h>
24
25#include "sbuslib.h"
26
27/*
28 * Local functions.
29 */
30
31static int tcx_setcolreg(unsigned, unsigned, unsigned, unsigned,
32 unsigned, struct fb_info *);
33static int tcx_blank(int, struct fb_info *);
34
Christoph Hellwig216d5262006-01-14 13:21:25 -080035static int tcx_mmap(struct fb_info *, struct vm_area_struct *);
Christoph Hellwig67a66802006-01-14 13:21:25 -080036static int tcx_ioctl(struct fb_info *, unsigned int, unsigned long);
Tom 'spot' Callaway6ee7c152005-04-24 20:39:15 -070037static int tcx_pan_display(struct fb_var_screeninfo *, struct fb_info *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070038
39/*
40 * Frame buffer operations
41 */
42
43static struct fb_ops tcx_ops = {
44 .owner = THIS_MODULE,
45 .fb_setcolreg = tcx_setcolreg,
46 .fb_blank = tcx_blank,
Tom 'spot' Callaway6ee7c152005-04-24 20:39:15 -070047 .fb_pan_display = tcx_pan_display,
Linus Torvalds1da177e2005-04-16 15:20:36 -070048 .fb_fillrect = cfb_fillrect,
49 .fb_copyarea = cfb_copyarea,
50 .fb_imageblit = cfb_imageblit,
51 .fb_mmap = tcx_mmap,
52 .fb_ioctl = tcx_ioctl,
Christoph Hellwig9ffb83b2005-11-12 12:11:12 -080053#ifdef CONFIG_COMPAT
54 .fb_compat_ioctl = sbusfb_compat_ioctl,
55#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070056};
57
58/* THC definitions */
59#define TCX_THC_MISC_REV_SHIFT 16
60#define TCX_THC_MISC_REV_MASK 15
61#define TCX_THC_MISC_VSYNC_DIS (1 << 25)
62#define TCX_THC_MISC_HSYNC_DIS (1 << 24)
63#define TCX_THC_MISC_RESET (1 << 12)
64#define TCX_THC_MISC_VIDEO (1 << 10)
65#define TCX_THC_MISC_SYNC (1 << 9)
66#define TCX_THC_MISC_VSYNC (1 << 8)
67#define TCX_THC_MISC_SYNC_ENAB (1 << 7)
68#define TCX_THC_MISC_CURS_RES (1 << 6)
69#define TCX_THC_MISC_INT_ENAB (1 << 5)
70#define TCX_THC_MISC_INT (1 << 4)
71#define TCX_THC_MISC_INIT 0x9f
72#define TCX_THC_REV_REV_SHIFT 20
73#define TCX_THC_REV_REV_MASK 15
74#define TCX_THC_REV_MINREV_SHIFT 28
75#define TCX_THC_REV_MINREV_MASK 15
76
77/* The contents are unknown */
78struct tcx_tec {
David S. Miller50312ce2006-06-29 14:35:52 -070079 u32 tec_matrix;
80 u32 tec_clip;
81 u32 tec_vdc;
Linus Torvalds1da177e2005-04-16 15:20:36 -070082};
83
84struct tcx_thc {
David S. Miller50312ce2006-06-29 14:35:52 -070085 u32 thc_rev;
Robert Reif5b81d682008-05-03 20:55:27 -070086 u32 thc_pad0[511];
David S. Miller50312ce2006-06-29 14:35:52 -070087 u32 thc_hs; /* hsync timing */
88 u32 thc_hsdvs;
89 u32 thc_hd;
90 u32 thc_vs; /* vsync timing */
91 u32 thc_vd;
92 u32 thc_refresh;
93 u32 thc_misc;
Linus Torvalds1da177e2005-04-16 15:20:36 -070094 u32 thc_pad1[56];
David S. Miller50312ce2006-06-29 14:35:52 -070095 u32 thc_cursxy; /* cursor x,y position (16 bits each) */
96 u32 thc_cursmask[32]; /* cursor mask bits */
97 u32 thc_cursbits[32]; /* what to show where mask enabled */
Linus Torvalds1da177e2005-04-16 15:20:36 -070098};
99
100struct bt_regs {
David S. Miller50312ce2006-06-29 14:35:52 -0700101 u32 addr;
102 u32 color_map;
103 u32 control;
104 u32 cursor;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105};
106
107#define TCX_MMAP_ENTRIES 14
108
109struct tcx_par {
110 spinlock_t lock;
111 struct bt_regs __iomem *bt;
112 struct tcx_thc __iomem *thc;
113 struct tcx_tec __iomem *tec;
David S. Miller50312ce2006-06-29 14:35:52 -0700114 u32 __iomem *cplane;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115
116 u32 flags;
117#define TCX_FLAG_BLANKED 0x00000001
118
David S. Miller50312ce2006-06-29 14:35:52 -0700119 unsigned long which_io;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120
121 struct sbus_mmap_map mmap_map[TCX_MMAP_ENTRIES];
122 int lowdepth;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123};
124
125/* Reset control plane so that WID is 8-bit plane. */
Krzysztof Heltfe3a1aa2009-06-16 15:34:39 -0700126static void __tcx_set_control_plane(struct fb_info *info)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127{
Krzysztof Heltfe3a1aa2009-06-16 15:34:39 -0700128 struct tcx_par *par = info->par;
David S. Miller50312ce2006-06-29 14:35:52 -0700129 u32 __iomem *p, *pend;
Robert Reif5b81d682008-05-03 20:55:27 -0700130
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131 if (par->lowdepth)
132 return;
133
134 p = par->cplane;
135 if (p == NULL)
136 return;
Krzysztof Heltfe3a1aa2009-06-16 15:34:39 -0700137 for (pend = p + info->fix.smem_len; p < pend; p++) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 u32 tmp = sbus_readl(p);
139
140 tmp &= 0xffffff;
141 sbus_writel(tmp, p);
142 }
143}
Robert Reif5b81d682008-05-03 20:55:27 -0700144
145static void tcx_reset(struct fb_info *info)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146{
147 struct tcx_par *par = (struct tcx_par *) info->par;
148 unsigned long flags;
149
150 spin_lock_irqsave(&par->lock, flags);
Krzysztof Heltfe3a1aa2009-06-16 15:34:39 -0700151 __tcx_set_control_plane(info);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152 spin_unlock_irqrestore(&par->lock, flags);
153}
154
Tom 'spot' Callaway6ee7c152005-04-24 20:39:15 -0700155static int tcx_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
156{
157 tcx_reset(info);
158 return 0;
159}
160
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161/**
162 * tcx_setcolreg - Optional function. Sets a color register.
163 * @regno: boolean, 0 copy local, 1 get_user() function
164 * @red: frame buffer colormap structure
165 * @green: The green value which can be up to 16 bits wide
166 * @blue: The blue value which can be up to 16 bits wide.
167 * @transp: If supported the alpha value which can be up to 16 bits wide.
168 * @info: frame buffer info structure
169 */
170static int tcx_setcolreg(unsigned regno,
171 unsigned red, unsigned green, unsigned blue,
172 unsigned transp, struct fb_info *info)
173{
174 struct tcx_par *par = (struct tcx_par *) info->par;
175 struct bt_regs __iomem *bt = par->bt;
176 unsigned long flags;
177
178 if (regno >= 256)
179 return 1;
180
181 red >>= 8;
182 green >>= 8;
183 blue >>= 8;
184
185 spin_lock_irqsave(&par->lock, flags);
186
187 sbus_writel(regno << 24, &bt->addr);
188 sbus_writel(red << 24, &bt->color_map);
189 sbus_writel(green << 24, &bt->color_map);
190 sbus_writel(blue << 24, &bt->color_map);
191
192 spin_unlock_irqrestore(&par->lock, flags);
193
194 return 0;
195}
196
197/**
198 * tcx_blank - Optional function. Blanks the display.
199 * @blank_mode: the blank mode we want.
200 * @info: frame buffer structure that represents a single frame buffer
201 */
202static int
203tcx_blank(int blank, struct fb_info *info)
204{
205 struct tcx_par *par = (struct tcx_par *) info->par;
206 struct tcx_thc __iomem *thc = par->thc;
207 unsigned long flags;
208 u32 val;
209
210 spin_lock_irqsave(&par->lock, flags);
211
212 val = sbus_readl(&thc->thc_misc);
213
214 switch (blank) {
215 case FB_BLANK_UNBLANK: /* Unblanking */
216 val &= ~(TCX_THC_MISC_VSYNC_DIS |
217 TCX_THC_MISC_HSYNC_DIS);
218 val |= TCX_THC_MISC_VIDEO;
219 par->flags &= ~TCX_FLAG_BLANKED;
220 break;
221
222 case FB_BLANK_NORMAL: /* Normal blanking */
223 val &= ~TCX_THC_MISC_VIDEO;
224 par->flags |= TCX_FLAG_BLANKED;
225 break;
226
227 case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */
228 val |= TCX_THC_MISC_VSYNC_DIS;
229 break;
230 case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */
231 val |= TCX_THC_MISC_HSYNC_DIS;
232 break;
233
234 case FB_BLANK_POWERDOWN: /* Poweroff */
235 break;
236 };
237
238 sbus_writel(val, &thc->thc_misc);
239
240 spin_unlock_irqrestore(&par->lock, flags);
241
242 return 0;
243}
244
245static struct sbus_mmap_map __tcx_mmap_map[TCX_MMAP_ENTRIES] = {
246 {
247 .voff = TCX_RAM8BIT,
248 .size = SBUS_MMAP_FBSIZE(1)
249 },
250 {
251 .voff = TCX_RAM24BIT,
252 .size = SBUS_MMAP_FBSIZE(4)
253 },
254 {
255 .voff = TCX_UNK3,
256 .size = SBUS_MMAP_FBSIZE(8)
257 },
258 {
259 .voff = TCX_UNK4,
260 .size = SBUS_MMAP_FBSIZE(8)
261 },
262 {
263 .voff = TCX_CONTROLPLANE,
264 .size = SBUS_MMAP_FBSIZE(4)
265 },
266 {
267 .voff = TCX_UNK6,
268 .size = SBUS_MMAP_FBSIZE(8)
269 },
270 {
271 .voff = TCX_UNK7,
272 .size = SBUS_MMAP_FBSIZE(8)
273 },
274 {
275 .voff = TCX_TEC,
276 .size = PAGE_SIZE
277 },
278 {
279 .voff = TCX_BTREGS,
280 .size = PAGE_SIZE
281 },
282 {
283 .voff = TCX_THC,
284 .size = PAGE_SIZE
285 },
286 {
287 .voff = TCX_DHC,
288 .size = PAGE_SIZE
289 },
290 {
291 .voff = TCX_ALT,
292 .size = PAGE_SIZE
293 },
294 {
295 .voff = TCX_UNK2,
296 .size = 0x20000
297 },
298 { .size = 0 }
299};
300
Christoph Hellwig216d5262006-01-14 13:21:25 -0800301static int tcx_mmap(struct fb_info *info, struct vm_area_struct *vma)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302{
303 struct tcx_par *par = (struct tcx_par *)info->par;
304
305 return sbusfb_mmap_helper(par->mmap_map,
Krzysztof Heltfe3a1aa2009-06-16 15:34:39 -0700306 info->fix.smem_start, info->fix.smem_len,
David S. Miller50312ce2006-06-29 14:35:52 -0700307 par->which_io, vma);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308}
309
Christoph Hellwig67a66802006-01-14 13:21:25 -0800310static int tcx_ioctl(struct fb_info *info, unsigned int cmd,
311 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312{
313 struct tcx_par *par = (struct tcx_par *) info->par;
314
315 return sbusfb_ioctl_helper(cmd, arg, info,
316 FBTYPE_TCXCOLOR,
317 (par->lowdepth ? 8 : 24),
Krzysztof Heltfe3a1aa2009-06-16 15:34:39 -0700318 info->fix.smem_len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319}
320
321/*
322 * Initialisation
323 */
324
325static void
326tcx_init_fix(struct fb_info *info, int linebytes)
327{
328 struct tcx_par *par = (struct tcx_par *)info->par;
329 const char *tcx_name;
330
331 if (par->lowdepth)
332 tcx_name = "TCX8";
333 else
334 tcx_name = "TCX24";
335
336 strlcpy(info->fix.id, tcx_name, sizeof(info->fix.id));
337
338 info->fix.type = FB_TYPE_PACKED_PIXELS;
339 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
340
341 info->fix.line_length = linebytes;
342
343 info->fix.accel = FB_ACCEL_SUN_TCX;
344}
345
David S. Millerc7f439b2007-07-27 22:31:46 -0700346static void tcx_unmap_regs(struct of_device *op, struct fb_info *info,
347 struct tcx_par *par)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348{
David S. Millerc7f439b2007-07-27 22:31:46 -0700349 if (par->tec)
David S. Millere3a411a32006-12-28 21:01:32 -0800350 of_iounmap(&op->resource[7],
David S. Millerc7f439b2007-07-27 22:31:46 -0700351 par->tec, sizeof(struct tcx_tec));
352 if (par->thc)
David S. Millere3a411a32006-12-28 21:01:32 -0800353 of_iounmap(&op->resource[9],
David S. Millerc7f439b2007-07-27 22:31:46 -0700354 par->thc, sizeof(struct tcx_thc));
355 if (par->bt)
David S. Millere3a411a32006-12-28 21:01:32 -0800356 of_iounmap(&op->resource[8],
David S. Millerc7f439b2007-07-27 22:31:46 -0700357 par->bt, sizeof(struct bt_regs));
358 if (par->cplane)
David S. Millere3a411a32006-12-28 21:01:32 -0800359 of_iounmap(&op->resource[4],
Krzysztof Heltfe3a1aa2009-06-16 15:34:39 -0700360 par->cplane, info->fix.smem_len * sizeof(u32));
David S. Millerc7f439b2007-07-27 22:31:46 -0700361 if (info->screen_base)
David S. Millere3a411a32006-12-28 21:01:32 -0800362 of_iounmap(&op->resource[0],
Krzysztof Heltfe3a1aa2009-06-16 15:34:39 -0700363 info->screen_base, info->fix.smem_len);
David S. Miller50312ce2006-06-29 14:35:52 -0700364}
365
Robert Reif5b81d682008-05-03 20:55:27 -0700366static int __devinit tcx_probe(struct of_device *op,
367 const struct of_device_id *match)
David S. Miller50312ce2006-06-29 14:35:52 -0700368{
369 struct device_node *dp = op->node;
David S. Millerc7f439b2007-07-27 22:31:46 -0700370 struct fb_info *info;
371 struct tcx_par *par;
David S. Miller50312ce2006-06-29 14:35:52 -0700372 int linebytes, i, err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373
David S. Millerc7f439b2007-07-27 22:31:46 -0700374 info = framebuffer_alloc(sizeof(struct tcx_par), &op->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375
David S. Millerc7f439b2007-07-27 22:31:46 -0700376 err = -ENOMEM;
377 if (!info)
378 goto out_err;
379 par = info->par;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380
David S. Millerc7f439b2007-07-27 22:31:46 -0700381 spin_lock_init(&par->lock);
382
383 par->lowdepth =
David S. Miller50312ce2006-06-29 14:35:52 -0700384 (of_find_property(dp, "tcx-8-bit", NULL) != NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385
Robert Reif6cd5a862008-05-08 21:37:30 -0700386 sbusfb_fill_var(&info->var, dp, 8);
David S. Millerc7f439b2007-07-27 22:31:46 -0700387 info->var.red.length = 8;
388 info->var.green.length = 8;
389 info->var.blue.length = 8;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390
David S. Miller50312ce2006-06-29 14:35:52 -0700391 linebytes = of_getintprop_default(dp, "linebytes",
David S. Millerc7f439b2007-07-27 22:31:46 -0700392 info->var.xres);
Krzysztof Heltfe3a1aa2009-06-16 15:34:39 -0700393 info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394
David S. Millerc7f439b2007-07-27 22:31:46 -0700395 par->tec = of_ioremap(&op->resource[7], 0,
David S. Miller50312ce2006-06-29 14:35:52 -0700396 sizeof(struct tcx_tec), "tcx tec");
David S. Millerc7f439b2007-07-27 22:31:46 -0700397 par->thc = of_ioremap(&op->resource[9], 0,
David S. Miller50312ce2006-06-29 14:35:52 -0700398 sizeof(struct tcx_thc), "tcx thc");
David S. Millerc7f439b2007-07-27 22:31:46 -0700399 par->bt = of_ioremap(&op->resource[8], 0,
David S. Miller50312ce2006-06-29 14:35:52 -0700400 sizeof(struct bt_regs), "tcx dac");
David S. Millerc7f439b2007-07-27 22:31:46 -0700401 info->screen_base = of_ioremap(&op->resource[0], 0,
Krzysztof Heltfe3a1aa2009-06-16 15:34:39 -0700402 info->fix.smem_len, "tcx ram");
David S. Millerc7f439b2007-07-27 22:31:46 -0700403 if (!par->tec || !par->thc ||
404 !par->bt || !info->screen_base)
405 goto out_unmap_regs;
David S. Miller50312ce2006-06-29 14:35:52 -0700406
David S. Millerc7f439b2007-07-27 22:31:46 -0700407 memcpy(&par->mmap_map, &__tcx_mmap_map, sizeof(par->mmap_map));
408 if (!par->lowdepth) {
409 par->cplane = of_ioremap(&op->resource[4], 0,
Krzysztof Heltfe3a1aa2009-06-16 15:34:39 -0700410 info->fix.smem_len * sizeof(u32),
David S. Miller50312ce2006-06-29 14:35:52 -0700411 "tcx cplane");
David S. Millerc7f439b2007-07-27 22:31:46 -0700412 if (!par->cplane)
413 goto out_unmap_regs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414 } else {
David S. Millerc7f439b2007-07-27 22:31:46 -0700415 par->mmap_map[1].size = SBUS_MMAP_EMPTY;
416 par->mmap_map[4].size = SBUS_MMAP_EMPTY;
417 par->mmap_map[5].size = SBUS_MMAP_EMPTY;
418 par->mmap_map[6].size = SBUS_MMAP_EMPTY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419 }
420
Krzysztof Heltfe3a1aa2009-06-16 15:34:39 -0700421 info->fix.smem_start = op->resource[0].start;
David S. Millerc7f439b2007-07-27 22:31:46 -0700422 par->which_io = op->resource[0].flags & IORESOURCE_BITS;
David S. Miller50312ce2006-06-29 14:35:52 -0700423
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424 for (i = 0; i < TCX_MMAP_ENTRIES; i++) {
425 int j;
426
427 switch (i) {
428 case 10:
429 j = 12;
430 break;
431
432 case 11: case 12:
433 j = i - 1;
434 break;
435
436 default:
437 j = i;
438 break;
439 };
David S. Millerc7f439b2007-07-27 22:31:46 -0700440 par->mmap_map[i].poff = op->resource[j].start;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441 }
442
David S. Millerc7f439b2007-07-27 22:31:46 -0700443 info->flags = FBINFO_DEFAULT;
444 info->fbops = &tcx_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445
446 /* Initialize brooktree DAC. */
David S. Millerc7f439b2007-07-27 22:31:46 -0700447 sbus_writel(0x04 << 24, &par->bt->addr); /* color planes */
448 sbus_writel(0xff << 24, &par->bt->control);
449 sbus_writel(0x05 << 24, &par->bt->addr);
450 sbus_writel(0x00 << 24, &par->bt->control);
451 sbus_writel(0x06 << 24, &par->bt->addr); /* overlay plane */
452 sbus_writel(0x73 << 24, &par->bt->control);
453 sbus_writel(0x07 << 24, &par->bt->addr);
454 sbus_writel(0x00 << 24, &par->bt->control);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455
David S. Millerc7f439b2007-07-27 22:31:46 -0700456 tcx_reset(info);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457
David S. Millerc7f439b2007-07-27 22:31:46 -0700458 tcx_blank(FB_BLANK_UNBLANK, info);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459
David S. Millerc7f439b2007-07-27 22:31:46 -0700460 if (fb_alloc_cmap(&info->cmap, 256, 0))
461 goto out_unmap_regs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462
David S. Millerc7f439b2007-07-27 22:31:46 -0700463 fb_set_cmap(&info->cmap, info);
464 tcx_init_fix(info, linebytes);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465
David S. Millerc7f439b2007-07-27 22:31:46 -0700466 err = register_framebuffer(info);
467 if (err < 0)
468 goto out_dealloc_cmap;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469
David S. Millerc7f439b2007-07-27 22:31:46 -0700470 dev_set_drvdata(&op->dev, info);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471
Robert Reif194f1a682008-04-27 15:18:57 -0700472 printk(KERN_INFO "%s: TCX at %lx:%lx, %s\n",
David S. Miller50312ce2006-06-29 14:35:52 -0700473 dp->full_name,
David S. Millerc7f439b2007-07-27 22:31:46 -0700474 par->which_io,
Krzysztof Heltfe3a1aa2009-06-16 15:34:39 -0700475 info->fix.smem_start,
David S. Millerc7f439b2007-07-27 22:31:46 -0700476 par->lowdepth ? "8-bit only" : "24-bit depth");
David S. Miller50312ce2006-06-29 14:35:52 -0700477
478 return 0;
David S. Millerc7f439b2007-07-27 22:31:46 -0700479
480out_dealloc_cmap:
481 fb_dealloc_cmap(&info->cmap);
482
483out_unmap_regs:
484 tcx_unmap_regs(op, info, par);
485
486out_err:
487 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488}
489
David S. Millere3a411a32006-12-28 21:01:32 -0800490static int __devexit tcx_remove(struct of_device *op)
David S. Miller50312ce2006-06-29 14:35:52 -0700491{
David S. Millerc7f439b2007-07-27 22:31:46 -0700492 struct fb_info *info = dev_get_drvdata(&op->dev);
493 struct tcx_par *par = info->par;
David S. Miller50312ce2006-06-29 14:35:52 -0700494
David S. Millerc7f439b2007-07-27 22:31:46 -0700495 unregister_framebuffer(info);
496 fb_dealloc_cmap(&info->cmap);
David S. Miller50312ce2006-06-29 14:35:52 -0700497
David S. Millerc7f439b2007-07-27 22:31:46 -0700498 tcx_unmap_regs(op, info, par);
David S. Miller50312ce2006-06-29 14:35:52 -0700499
David S. Millerc7f439b2007-07-27 22:31:46 -0700500 framebuffer_release(info);
David S. Miller50312ce2006-06-29 14:35:52 -0700501
David S. Millere3a411a32006-12-28 21:01:32 -0800502 dev_set_drvdata(&op->dev, NULL);
David S. Miller50312ce2006-06-29 14:35:52 -0700503
504 return 0;
505}
506
David S. Millerfd098312008-08-31 01:23:17 -0700507static const struct of_device_id tcx_match[] = {
David S. Miller50312ce2006-06-29 14:35:52 -0700508 {
509 .name = "SUNW,tcx",
510 },
511 {},
512};
513MODULE_DEVICE_TABLE(of, tcx_match);
514
515static struct of_platform_driver tcx_driver = {
516 .name = "tcx",
517 .match_table = tcx_match,
518 .probe = tcx_probe,
519 .remove = __devexit_p(tcx_remove),
520};
521
Robert Reiff36861d2008-04-27 15:18:12 -0700522static int __init tcx_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700523{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524 if (fb_get_options("tcxfb", NULL))
525 return -ENODEV;
526
David S. Miller50312ce2006-06-29 14:35:52 -0700527 return of_register_driver(&tcx_driver, &of_bus_type);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700528}
529
Robert Reiff36861d2008-04-27 15:18:12 -0700530static void __exit tcx_exit(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531{
David S. Miller50312ce2006-06-29 14:35:52 -0700532 of_unregister_driver(&tcx_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533}
534
535module_init(tcx_init);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536module_exit(tcx_exit);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700537
538MODULE_DESCRIPTION("framebuffer driver for TCX chipsets");
David S. Miller50312ce2006-06-29 14:35:52 -0700539MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
540MODULE_VERSION("2.0");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700541MODULE_LICENSE("GPL");