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MIPS: Alchemy: au1100fb: use clk framework
[linux-2.6-block.git] / drivers / video / fbdev / au1200fb.c
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f95ec3c6
RB		 1/*
2 * BRIEF MODULE DESCRIPTION
3 * Au1200 LCD Driver.
4 *
5 * Copyright 2004-2005 AMD
6 * Author: AMD
7 *
8 * Based on:
9 * linux/drivers/video/skeletonfb.c -- Skeleton for a frame buffer device
10 * Created 28 Dec 1997 by Geert Uytterhoeven
11 *
12 * This program is free software; you can redistribute it and/or modify it
f95ec3c6
RB		 13 * under the terms of the GNU General Public License as published by the
14 * Free Software Foundation; either version 2 of the License, or (at your
15 * option) any later version.
16 *
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
20 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
23 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
24 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * You should have received a copy of the GNU General Public License along
29 * with this program; if not, write to the Free Software Foundation, Inc.,
30 * 675 Mass Ave, Cambridge, MA 02139, USA.
31 */
32
33#include <linux/module.h>
34#include <linux/platform_device.h>
35#include <linux/kernel.h>
36#include <linux/errno.h>
37#include <linux/string.h>
38#include <linux/mm.h>
39#include <linux/fb.h>
40#include <linux/init.h>
41#include <linux/interrupt.h>
42#include <linux/ctype.h>
43#include <linux/dma-mapping.h>
5a0e3ad6 44#include <linux/slab.h>
f95ec3c6
RB		 45
46#include <asm/mach-au1x00/au1000.h>
a9b71a8f 47#include <asm/mach-au1x00/au1200fb.h> /* platform_data */
f95ec3c6
RB		 48#include "au1200fb.h"
49
f95ec3c6
RB		 50#define DRIVER_NAME "au1200fb"
51#define DRIVER_DESC "LCD controller driver for AU1200 processors"
52
f49446eb 53#define DEBUG 0
f95ec3c6
RB		 54
55#define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg)
56#define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg)
57#define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg)
58
59#if DEBUG
60#define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg)
61#else
62#define print_dbg(f, arg...) do {} while (0)
63#endif
64
65
66#define AU1200_LCD_FB_IOCTL 0x46FF
67
68#define AU1200_LCD_SET_SCREEN 1
69#define AU1200_LCD_GET_SCREEN 2
70#define AU1200_LCD_SET_WINDOW 3
71#define AU1200_LCD_GET_WINDOW 4
72#define AU1200_LCD_SET_PANEL 5
73#define AU1200_LCD_GET_PANEL 6
74
75#define SCREEN_SIZE (1<< 1)
76#define SCREEN_BACKCOLOR (1<< 2)
77#define SCREEN_BRIGHTNESS (1<< 3)
78#define SCREEN_COLORKEY (1<< 4)
79#define SCREEN_MASK (1<< 5)
80
81struct au1200_lcd_global_regs_t {
82 unsigned int flags;
83 unsigned int xsize;
84 unsigned int ysize;
85 unsigned int backcolor;
86 unsigned int brightness;
87 unsigned int colorkey;
88 unsigned int mask;
89 unsigned int panel_choice;
90 char panel_desc[80];
91
92};
93
94#define WIN_POSITION (1<< 0)
95#define WIN_ALPHA_COLOR (1<< 1)
96#define WIN_ALPHA_MODE (1<< 2)
97#define WIN_PRIORITY (1<< 3)
98#define WIN_CHANNEL (1<< 4)
99#define WIN_BUFFER_FORMAT (1<< 5)
100#define WIN_COLOR_ORDER (1<< 6)
101#define WIN_PIXEL_ORDER (1<< 7)
102#define WIN_SIZE (1<< 8)
103#define WIN_COLORKEY_MODE (1<< 9)
104#define WIN_DOUBLE_BUFFER_MODE (1<< 10)
105#define WIN_RAM_ARRAY_MODE (1<< 11)
106#define WIN_BUFFER_SCALE (1<< 12)
107#define WIN_ENABLE (1<< 13)
108
109struct au1200_lcd_window_regs_t {
110 unsigned int flags;
111 unsigned int xpos;
112 unsigned int ypos;
113 unsigned int alpha_color;
114 unsigned int alpha_mode;
115 unsigned int priority;
116 unsigned int channel;
117 unsigned int buffer_format;
118 unsigned int color_order;
119 unsigned int pixel_order;
120 unsigned int xsize;
121 unsigned int ysize;
122 unsigned int colorkey_mode;
123 unsigned int double_buffer_mode;
124 unsigned int ram_array_mode;
125 unsigned int xscale;
126 unsigned int yscale;
127 unsigned int enable;
128};
129
130
131struct au1200_lcd_iodata_t {
132 unsigned int subcmd;
133 struct au1200_lcd_global_regs_t global;
134 struct au1200_lcd_window_regs_t window;
135};
136
137#if defined(__BIG_ENDIAN)
138#define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11
139#else
140#define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00
141#endif
142#define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565
143
144/* Private, per-framebuffer management information (independent of the panel itself) */
145struct au1200fb_device {
c329f606 146 struct fb_info *fb_info; /* FB driver info record */
a9b71a8f 147 struct au1200fb_platdata *pd;
f95ec3c6
RB		 148
149 int plane;
150 unsigned char* fb_mem; /* FrameBuffer memory map */
151 unsigned int fb_len;
152 dma_addr_t fb_phys;
153};
154
f95ec3c6
RB		 155/********************************************************************/
156
157/* LCD controller restrictions */
158#define AU1200_LCD_MAX_XRES 1280
159#define AU1200_LCD_MAX_YRES 1024
160#define AU1200_LCD_MAX_BPP 32
161#define AU1200_LCD_MAX_CLK 96000000 /* fixme: this needs to go away ? */
162#define AU1200_LCD_NBR_PALETTE_ENTRIES 256
163
164/* Default number of visible screen buffer to allocate */
165#define AU1200FB_NBR_VIDEO_BUFFERS 1
166
8be90b07
ML		 167/* Default maximum number of fb devices to create */
168#define MAX_DEVICE_COUNT 4
169
170/* Default window configuration entry to use (see windows[]) */
171#define DEFAULT_WINDOW_INDEX 2
172
f95ec3c6
RB		 173/********************************************************************/
174
8be90b07 175static struct fb_info *_au1200fb_infos[MAX_DEVICE_COUNT];
f95ec3c6 176static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR;
8be90b07
ML		 177static int device_count = MAX_DEVICE_COUNT;
178static int window_index = DEFAULT_WINDOW_INDEX; /* default is zero */
f95ec3c6
RB		 179static int panel_index = 2; /* default is zero */
180static struct window_settings *win;
181static struct panel_settings *panel;
182static int noblanking = 1;
183static int nohwcursor = 0;
184
185struct window_settings {
186 unsigned char name[64];
187 uint32 mode_backcolor;
188 uint32 mode_colorkey;
189 uint32 mode_colorkeymsk;
190 struct {
191 int xres;
192 int yres;
193 int xpos;
194 int ypos;
195 uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */
196 uint32 mode_winenable;
197 } w[4];
198};
199
200#if defined(__BIG_ENDIAN)
201#define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00
202#else
203#define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01
204#endif
205
f95ec3c6
RB		 206/*
207 * Default window configurations
208 */
209static struct window_settings windows[] = {
210 { /* Index 0 */
211 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
212 /* mode_backcolor */ 0x006600ff,
213 /* mode_colorkey,msk*/ 0, 0,
214 {
215 {
216 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
217 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
218 LCD_WINCTRL1_PO_16BPP,
219 /* mode_winenable*/ LCD_WINENABLE_WEN0,
220 },
221 {
222 /* xres, yres, xpos, ypos */ 100, 100, 100, 100,
223 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
224 LCD_WINCTRL1_PO_16BPP |
225 LCD_WINCTRL1_PIPE,
226 /* mode_winenable*/ LCD_WINENABLE_WEN1,
227 },
228 {
229 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
230 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
231 LCD_WINCTRL1_PO_16BPP,
232 /* mode_winenable*/ 0,
233 },
234 {
235 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
236 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
237 LCD_WINCTRL1_PO_16BPP |
238 LCD_WINCTRL1_PIPE,
239 /* mode_winenable*/ 0,
240 },
241 },
242 },
243
244 { /* Index 1 */
245 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
246 /* mode_backcolor */ 0x006600ff,
247 /* mode_colorkey,msk*/ 0, 0,
248 {
249 {
250 /* xres, yres, xpos, ypos */ 320, 240, 5, 5,
251 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP |
252 LCD_WINCTRL1_PO_00,
253 /* mode_winenable*/ LCD_WINENABLE_WEN0,
254 },
255 {
256 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
257 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565
258 | LCD_WINCTRL1_PO_16BPP,
259 /* mode_winenable*/ 0,
260 },
261 {
262 /* xres, yres, xpos, ypos */ 100, 100, 0, 0,
263 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
264 LCD_WINCTRL1_PO_16BPP |
265 LCD_WINCTRL1_PIPE,
266 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
267 },
268 {
269 /* xres, yres, xpos, ypos */ 200, 25, 0, 0,
270 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
271 LCD_WINCTRL1_PO_16BPP |
272 LCD_WINCTRL1_PIPE,
273 /* mode_winenable*/ 0,
274 },
275 },
276 },
277 { /* Index 2 */
278 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
279 /* mode_backcolor */ 0x006600ff,
280 /* mode_colorkey,msk*/ 0, 0,
281 {
282 {
283 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
284 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
285 LCD_WINCTRL1_PO_16BPP,
286 /* mode_winenable*/ LCD_WINENABLE_WEN0,
287 },
288 {
289 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
290 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
291 LCD_WINCTRL1_PO_16BPP,
292 /* mode_winenable*/ 0,
293 },
294 {
295 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
296 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP |
297 LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE,
298 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
299 },
300 {
301 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
302 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
303 LCD_WINCTRL1_PO_16BPP |
304 LCD_WINCTRL1_PIPE,
305 /* mode_winenable*/ 0,
306 },
307 },
308 },
309 /* Need VGA 640 @ 24bpp, @ 32bpp */
310 /* Need VGA 800 @ 24bpp, @ 32bpp */
311 /* Need VGA 1024 @ 24bpp, @ 32bpp */
312};
313
314/*
315 * Controller configurations for various panels.
316 */
317
318struct panel_settings
319{
320 const char name[25]; /* Full name <vendor>_<model> */
321
322 struct fb_monspecs monspecs; /* FB monitor specs */
323
324 /* panel timings */
325 uint32 mode_screen;
326 uint32 mode_horztiming;
327 uint32 mode_verttiming;
328 uint32 mode_clkcontrol;
329 uint32 mode_pwmdiv;
330 uint32 mode_pwmhi;
331 uint32 mode_outmask;
332 uint32 mode_fifoctrl;
333 uint32 mode_toyclksrc;
334 uint32 mode_backlight;
335 uint32 mode_auxpll;
f95ec3c6
RB		 336#define Xres min_xres
337#define Yres min_yres
338 u32 min_xres; /* Minimum horizontal resolution */
339 u32 max_xres; /* Maximum horizontal resolution */
340 u32 min_yres; /* Minimum vertical resolution */
341 u32 max_yres; /* Maximum vertical resolution */
342};
343
344/********************************************************************/
345/* fixme: Maybe a modedb for the CRT ? otherwise panels should be as-is */
346
347/* List of panels known to work with the AU1200 LCD controller.
348 * To add a new panel, enter the same specifications as the
349 * Generic_TFT one, and MAKE SURE that it doesn't conflicts
350 * with the controller restrictions. Restrictions are:
351 *
352 * STN color panels: max_bpp <= 12
353 * STN mono panels: max_bpp <= 4
354 * TFT panels: max_bpp <= 16
355 * max_xres <= 800
356 * max_yres <= 600
357 */
358static struct panel_settings known_lcd_panels[] =
359{
360 [0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */
361 .name = "QVGA_320x240",
362 .monspecs = {
363 .modedb = NULL,
364 .modedb_len = 0,
365 .hfmin = 30000,
366 .hfmax = 70000,
367 .vfmin = 60,
368 .vfmax = 60,
369 .dclkmin = 6000000,
370 .dclkmax = 28000000,
371 .input = FB_DISP_RGB,
372 },
373 .mode_screen = LCD_SCREEN_SX_N(320) |
374 LCD_SCREEN_SY_N(240),
375 .mode_horztiming = 0x00c4623b,
376 .mode_verttiming = 0x00502814,
377 .mode_clkcontrol = 0x00020002, /* /4=24Mhz */
378 .mode_pwmdiv = 0x00000000,
379 .mode_pwmhi = 0x00000000,
380 .mode_outmask = 0x00FFFFFF,
381 .mode_fifoctrl = 0x2f2f2f2f,
382 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
383 .mode_backlight = 0x00000000,
384 .mode_auxpll = 8, /* 96MHz AUXPLL */
f95ec3c6
RB		 385 320, 320,
386 240, 240,
387 },
388
389 [1] = { /* VGA 640x480 H:30.3kHz V:58Hz */
390 .name = "VGA_640x480",
391 .monspecs = {
392 .modedb = NULL,
393 .modedb_len = 0,
394 .hfmin = 30000,
395 .hfmax = 70000,
396 .vfmin = 60,
397 .vfmax = 60,
398 .dclkmin = 6000000,
399 .dclkmax = 28000000,
400 .input = FB_DISP_RGB,
401 },
402 .mode_screen = 0x13f9df80,
403 .mode_horztiming = 0x003c5859,
404 .mode_verttiming = 0x00741201,
405 .mode_clkcontrol = 0x00020001, /* /4=24Mhz */
406 .mode_pwmdiv = 0x00000000,
407 .mode_pwmhi = 0x00000000,
408 .mode_outmask = 0x00FFFFFF,
409 .mode_fifoctrl = 0x2f2f2f2f,
410 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
411 .mode_backlight = 0x00000000,
412 .mode_auxpll = 8, /* 96MHz AUXPLL */
f95ec3c6
RB		 413 640, 480,
414 640, 480,
415 },
416
417 [2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */
418 .name = "SVGA_800x600",
419 .monspecs = {
420 .modedb = NULL,
421 .modedb_len = 0,
422 .hfmin = 30000,
423 .hfmax = 70000,
424 .vfmin = 60,
425 .vfmax = 60,
426 .dclkmin = 6000000,
427 .dclkmax = 28000000,
428 .input = FB_DISP_RGB,
429 },
430 .mode_screen = 0x18fa5780,
431 .mode_horztiming = 0x00dc7e77,
432 .mode_verttiming = 0x00584805,
433 .mode_clkcontrol = 0x00020000, /* /2=48Mhz */
434 .mode_pwmdiv = 0x00000000,
435 .mode_pwmhi = 0x00000000,
436 .mode_outmask = 0x00FFFFFF,
437 .mode_fifoctrl = 0x2f2f2f2f,
438 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
439 .mode_backlight = 0x00000000,
440 .mode_auxpll = 8, /* 96MHz AUXPLL */
f95ec3c6
RB		 441 800, 800,
442 600, 600,
443 },
444
445 [3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */
446 .name = "XVGA_1024x768",
447 .monspecs = {
448 .modedb = NULL,
449 .modedb_len = 0,
450 .hfmin = 30000,
451 .hfmax = 70000,
452 .vfmin = 60,
453 .vfmax = 60,
454 .dclkmin = 6000000,
455 .dclkmax = 28000000,
456 .input = FB_DISP_RGB,
457 },
458 .mode_screen = 0x1ffaff80,
459 .mode_horztiming = 0x007d0e57,
460 .mode_verttiming = 0x00740a01,
461 .mode_clkcontrol = 0x000A0000, /* /1 */
462 .mode_pwmdiv = 0x00000000,
463 .mode_pwmhi = 0x00000000,
464 .mode_outmask = 0x00FFFFFF,
465 .mode_fifoctrl = 0x2f2f2f2f,
466 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
467 .mode_backlight = 0x00000000,
468 .mode_auxpll = 6, /* 72MHz AUXPLL */
f95ec3c6
RB		 469 1024, 1024,
470 768, 768,
471 },
472
473 [4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */
474 .name = "XVGA_1280x1024",
475 .monspecs = {
476 .modedb = NULL,
477 .modedb_len = 0,
478 .hfmin = 30000,
479 .hfmax = 70000,
480 .vfmin = 60,
481 .vfmax = 60,
482 .dclkmin = 6000000,
483 .dclkmax = 28000000,
484 .input = FB_DISP_RGB,
485 },
486 .mode_screen = 0x27fbff80,
487 .mode_horztiming = 0x00cdb2c7,
488 .mode_verttiming = 0x00600002,
489 .mode_clkcontrol = 0x000A0000, /* /1 */
490 .mode_pwmdiv = 0x00000000,
491 .mode_pwmhi = 0x00000000,
492 .mode_outmask = 0x00FFFFFF,
493 .mode_fifoctrl = 0x2f2f2f2f,
494 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
495 .mode_backlight = 0x00000000,
496 .mode_auxpll = 10, /* 120MHz AUXPLL */
f95ec3c6
RB		 497 1280, 1280,
498 1024, 1024,
499 },
500
501 [5] = { /* Samsung 1024x768 TFT */
502 .name = "Samsung_1024x768_TFT",
503 .monspecs = {
504 .modedb = NULL,
505 .modedb_len = 0,
506 .hfmin = 30000,
507 .hfmax = 70000,
508 .vfmin = 60,
509 .vfmax = 60,
510 .dclkmin = 6000000,
511 .dclkmax = 28000000,
512 .input = FB_DISP_RGB,
513 },
514 .mode_screen = 0x1ffaff80,
515 .mode_horztiming = 0x018cc677,
516 .mode_verttiming = 0x00241217,
517 .mode_clkcontrol = 0x00000000, /* SCB 0x1 /4=24Mhz */
518 .mode_pwmdiv = 0x8000063f, /* SCB 0x0 */
519 .mode_pwmhi = 0x03400000, /* SCB 0x0 */
520 .mode_outmask = 0x00FFFFFF,
521 .mode_fifoctrl = 0x2f2f2f2f,
522 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
523 .mode_backlight = 0x00000000,
524 .mode_auxpll = 8, /* 96MHz AUXPLL */
f95ec3c6
RB		 525 1024, 1024,
526 768, 768,
527 },
528
529 [6] = { /* Toshiba 640x480 TFT */
530 .name = "Toshiba_640x480_TFT",
531 .monspecs = {
532 .modedb = NULL,
533 .modedb_len = 0,
534 .hfmin = 30000,
535 .hfmax = 70000,
536 .vfmin = 60,
537 .vfmax = 60,
538 .dclkmin = 6000000,
539 .dclkmax = 28000000,
540 .input = FB_DISP_RGB,
541 },
542 .mode_screen = LCD_SCREEN_SX_N(640) |
543 LCD_SCREEN_SY_N(480),
544 .mode_horztiming = LCD_HORZTIMING_HPW_N(96) |
545 LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51),
546 .mode_verttiming = LCD_VERTTIMING_VPW_N(2) |
547 LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32),
548 .mode_clkcontrol = 0x00000000, /* /4=24Mhz */
549 .mode_pwmdiv = 0x8000063f,
550 .mode_pwmhi = 0x03400000,
551 .mode_outmask = 0x00fcfcfc,
552 .mode_fifoctrl = 0x2f2f2f2f,
553 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
554 .mode_backlight = 0x00000000,
555 .mode_auxpll = 8, /* 96MHz AUXPLL */
f95ec3c6
RB		 556 640, 480,
557 640, 480,
558 },
559
560 [7] = { /* Sharp 320x240 TFT */
561 .name = "Sharp_320x240_TFT",
562 .monspecs = {
563 .modedb = NULL,
564 .modedb_len = 0,
565 .hfmin = 12500,
566 .hfmax = 20000,
567 .vfmin = 38,
568 .vfmax = 81,
569 .dclkmin = 4500000,
570 .dclkmax = 6800000,
571 .input = FB_DISP_RGB,
572 },
573 .mode_screen = LCD_SCREEN_SX_N(320) |
574 LCD_SCREEN_SY_N(240),
575 .mode_horztiming = LCD_HORZTIMING_HPW_N(60) |
576 LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2),
577 .mode_verttiming = LCD_VERTTIMING_VPW_N(2) |
578 LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5),
579 .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/
580 .mode_pwmdiv = 0x8000063f,
581 .mode_pwmhi = 0x03400000,
582 .mode_outmask = 0x00fcfcfc,
583 .mode_fifoctrl = 0x2f2f2f2f,
584 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
585 .mode_backlight = 0x00000000,
586 .mode_auxpll = 8, /* 96MHz AUXPLL */
f95ec3c6
RB		 587 320, 320,
588 240, 240,
589 },
590
591 [8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */
592 .name = "Toppoly_TD070WGCB2",
593 .monspecs = {
594 .modedb = NULL,
595 .modedb_len = 0,
596 .hfmin = 30000,
597 .hfmax = 70000,
598 .vfmin = 60,
599 .vfmax = 60,
600 .dclkmin = 6000000,
601 .dclkmax = 28000000,
602 .input = FB_DISP_RGB,
603 },
604 .mode_screen = LCD_SCREEN_SX_N(856) |
605 LCD_SCREEN_SY_N(480),
606 .mode_horztiming = LCD_HORZTIMING_HND2_N(43) |
607 LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114),
608 .mode_verttiming = LCD_VERTTIMING_VND2_N(20) |
609 LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4),
610 .mode_clkcontrol = 0x00020001, /* /4=24Mhz */
611 .mode_pwmdiv = 0x8000063f,
612 .mode_pwmhi = 0x03400000,
613 .mode_outmask = 0x00fcfcfc,
614 .mode_fifoctrl = 0x2f2f2f2f,
615 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
616 .mode_backlight = 0x00000000,
617 .mode_auxpll = 8, /* 96MHz AUXPLL */
f95ec3c6
RB		 618 856, 856,
619 480, 480,
620 },
64cd04d0
ML		 621 [9] = {
622 .name = "DB1300_800x480",
623 .monspecs = {
624 .modedb = NULL,
625 .modedb_len = 0,
626 .hfmin = 30000,
627 .hfmax = 70000,
628 .vfmin = 60,
629 .vfmax = 60,
630 .dclkmin = 6000000,
631 .dclkmax = 28000000,
632 .input = FB_DISP_RGB,
633 },
634 .mode_screen = LCD_SCREEN_SX_N(800) |
635 LCD_SCREEN_SY_N(480),
636 .mode_horztiming = LCD_HORZTIMING_HPW_N(5) |
637 LCD_HORZTIMING_HND1_N(16) |
638 LCD_HORZTIMING_HND2_N(8),
639 .mode_verttiming = LCD_VERTTIMING_VPW_N(4) |
640 LCD_VERTTIMING_VND1_N(8) |
641 LCD_VERTTIMING_VND2_N(5),
642 .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(1) |
643 LCD_CLKCONTROL_IV |
644 LCD_CLKCONTROL_IH,
645 .mode_pwmdiv = 0x00000000,
646 .mode_pwmhi = 0x00000000,
647 .mode_outmask = 0x00FFFFFF,
648 .mode_fifoctrl = 0x2f2f2f2f,
649 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
650 .mode_backlight = 0x00000000,
651 .mode_auxpll = (48/12) * 2,
64cd04d0
ML		 652 800, 800,
653 480, 480,
654 },
f95ec3c6
RB		 655};
656
657#define NUM_PANELS (ARRAY_SIZE(known_lcd_panels))
658
659/********************************************************************/
660
f95ec3c6
RB		 661static int winbpp (unsigned int winctrl1)
662{
663 int bits = 0;
664
665 /* how many bits are needed for each pixel format */
666 switch (winctrl1 & LCD_WINCTRL1_FRM) {
667 case LCD_WINCTRL1_FRM_1BPP:
668 bits = 1;
669 break;
670 case LCD_WINCTRL1_FRM_2BPP:
671 bits = 2;
672 break;
673 case LCD_WINCTRL1_FRM_4BPP:
674 bits = 4;
675 break;
676 case LCD_WINCTRL1_FRM_8BPP:
677 bits = 8;
678 break;
679 case LCD_WINCTRL1_FRM_12BPP:
680 case LCD_WINCTRL1_FRM_16BPP655:
681 case LCD_WINCTRL1_FRM_16BPP565:
682 case LCD_WINCTRL1_FRM_16BPP556:
683 case LCD_WINCTRL1_FRM_16BPPI1555:
684 case LCD_WINCTRL1_FRM_16BPPI5551:
685 case LCD_WINCTRL1_FRM_16BPPA1555:
686 case LCD_WINCTRL1_FRM_16BPPA5551:
687 bits = 16;
688 break;
689 case LCD_WINCTRL1_FRM_24BPP:
690 case LCD_WINCTRL1_FRM_32BPP:
691 bits = 32;
692 break;
693 }
694
695 return bits;
696}
697
698static int fbinfo2index (struct fb_info *fb_info)
699{
700 int i;
701
8be90b07 702 for (i = 0; i < device_count; ++i) {
c329f606 703 if (fb_info == _au1200fb_infos[i])
f95ec3c6
RB		 704 return i;
705 }
706 printk("au1200fb: ERROR: fbinfo2index failed!\n");
707 return -1;
708}
709
710static int au1200_setlocation (struct au1200fb_device *fbdev, int plane,
711 int xpos, int ypos)
712{
713 uint32 winctrl0, winctrl1, winenable, fb_offset = 0;
714 int xsz, ysz;
715
716 /* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */
717
718 winctrl0 = lcd->window[plane].winctrl0;
719 winctrl1 = lcd->window[plane].winctrl1;
720 winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN);
721 winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY);
722
723 /* Check for off-screen adjustments */
724 xsz = win->w[plane].xres;
725 ysz = win->w[plane].yres;
726 if ((xpos + win->w[plane].xres) > panel->Xres) {
727 /* Off-screen to the right */
728 xsz = panel->Xres - xpos; /* off by 1 ??? */
729 /*printk("off screen right\n");*/
730 }
731
732 if ((ypos + win->w[plane].yres) > panel->Yres) {
733 /* Off-screen to the bottom */
734 ysz = panel->Yres - ypos; /* off by 1 ??? */
735 /*printk("off screen bottom\n");*/
736 }
737
738 if (xpos < 0) {
739 /* Off-screen to the left */
740 xsz = win->w[plane].xres + xpos;
741 fb_offset += (((0 - xpos) * winbpp(lcd->window[plane].winctrl1))/8);
742 xpos = 0;
743 /*printk("off screen left\n");*/
744 }
745
746 if (ypos < 0) {
747 /* Off-screen to the top */
748 ysz = win->w[plane].yres + ypos;
749 /* fixme: fb_offset += ((0-ypos)*fb_pars[plane].line_length); */
750 ypos = 0;
751 /*printk("off screen top\n");*/
752 }
753
754 /* record settings */
755 win->w[plane].xpos = xpos;
756 win->w[plane].ypos = ypos;
757
758 xsz -= 1;
759 ysz -= 1;
760 winctrl0 |= (xpos << 21);
761 winctrl0 |= (ypos << 10);
762 winctrl1 |= (xsz << 11);
763 winctrl1 |= (ysz << 0);
764
765 /* Disable the window while making changes, then restore WINEN */
766 winenable = lcd->winenable & (1 << plane);
2f73bfbe 767 wmb(); /* drain writebuffer */
f95ec3c6
RB		 768 lcd->winenable &= ~(1 << plane);
769 lcd->window[plane].winctrl0 = winctrl0;
770 lcd->window[plane].winctrl1 = winctrl1;
771 lcd->window[plane].winbuf0 =
772 lcd->window[plane].winbuf1 = fbdev->fb_phys;
773 lcd->window[plane].winbufctrl = 0; /* select winbuf0 */
774 lcd->winenable |= winenable;
2f73bfbe 775 wmb(); /* drain writebuffer */
f95ec3c6
RB		 776
777 return 0;
778}
779
a9b71a8f
ML		 780static void au1200_setpanel(struct panel_settings *newpanel,
781 struct au1200fb_platdata *pd)
f95ec3c6
RB		 782{
783 /*
784 * Perform global setup/init of LCD controller
785 */
786 uint32 winenable;
787
788 /* Make sure all windows disabled */
789 winenable = lcd->winenable;
790 lcd->winenable = 0;
2f73bfbe 791 wmb(); /* drain writebuffer */
f95ec3c6
RB		 792 /*
793 * Ensure everything is disabled before reconfiguring
794 */
795 if (lcd->screen & LCD_SCREEN_SEN) {
796 /* Wait for vertical sync period */
797 lcd->intstatus = LCD_INT_SS;
2f73bfbe
ML		 798 while ((lcd->intstatus & LCD_INT_SS) == 0)
799 ;
f95ec3c6
RB		 800
801 lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/
802
803 do {
804 lcd->intstatus = lcd->intstatus; /*clear interrupts*/
2f73bfbe 805 wmb(); /* drain writebuffer */
f95ec3c6
RB		 806 /*wait for controller to shut down*/
807 } while ((lcd->intstatus & LCD_INT_SD) == 0);
808
809 /* Call shutdown of current panel (if up) */
810 /* this must occur last, because if an external clock is driving
811 the controller, the clock cannot be turned off before first
812 shutting down the controller.
813 */
a9b71a8f
ML		 814 if (pd->panel_shutdown)
815 pd->panel_shutdown();
f95ec3c6
RB		 816 }
817
818 /* Newpanel == NULL indicates a shutdown operation only */
819 if (newpanel == NULL)
820 return;
821
822 panel = newpanel;
823
824 printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres);
825
826 /*
827 * Setup clocking if internal LCD clock source (assumes sys_auxpll valid)
828 */
829 if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT))
830 {
831 uint32 sys_clksrc;
1d09de7d
ML		 832 alchemy_wrsys(panel->mode_auxpll, AU1000_SYS_AUXPLL);
833 sys_clksrc = alchemy_rdsys(AU1000_SYS_CLKSRC) & ~0x0000001f;
f95ec3c6 834 sys_clksrc |= panel->mode_toyclksrc;
1d09de7d 835 alchemy_wrsys(sys_clksrc, AU1000_SYS_CLKSRC);
f95ec3c6
RB		 836 }
837
838 /*
839 * Configure panel timings
840 */
841 lcd->screen = panel->mode_screen;
842 lcd->horztiming = panel->mode_horztiming;
843 lcd->verttiming = panel->mode_verttiming;
844 lcd->clkcontrol = panel->mode_clkcontrol;
845 lcd->pwmdiv = panel->mode_pwmdiv;
846 lcd->pwmhi = panel->mode_pwmhi;
847 lcd->outmask = panel->mode_outmask;
848 lcd->fifoctrl = panel->mode_fifoctrl;
2f73bfbe 849 wmb(); /* drain writebuffer */
f95ec3c6
RB		 850
851 /* fixme: Check window settings to make sure still valid
852 * for new geometry */
853#if 0
854 au1200_setlocation(fbdev, 0, win->w[0].xpos, win->w[0].ypos);
855 au1200_setlocation(fbdev, 1, win->w[1].xpos, win->w[1].ypos);
856 au1200_setlocation(fbdev, 2, win->w[2].xpos, win->w[2].ypos);
857 au1200_setlocation(fbdev, 3, win->w[3].xpos, win->w[3].ypos);
858#endif
859 lcd->winenable = winenable;
860
861 /*
862 * Re-enable screen now that it is configured
863 */
864 lcd->screen |= LCD_SCREEN_SEN;
2f73bfbe 865 wmb(); /* drain writebuffer */
f95ec3c6
RB		 866
867 /* Call init of panel */
a9b71a8f
ML		 868 if (pd->panel_init)
869 pd->panel_init();
f95ec3c6
RB		 870
871 /* FIX!!!! not appropriate on panel change!!! Global setup/init */
872 lcd->intenable = 0;
873 lcd->intstatus = ~0;
874 lcd->backcolor = win->mode_backcolor;
875
876 /* Setup Color Key - FIX!!! */
877 lcd->colorkey = win->mode_colorkey;
878 lcd->colorkeymsk = win->mode_colorkeymsk;
879
880 /* Setup HWCursor - FIX!!! Need to support this eventually */
881 lcd->hwc.cursorctrl = 0;
882 lcd->hwc.cursorpos = 0;
883 lcd->hwc.cursorcolor0 = 0;
884 lcd->hwc.cursorcolor1 = 0;
885 lcd->hwc.cursorcolor2 = 0;
886 lcd->hwc.cursorcolor3 = 0;
887
888
889#if 0
890#define D(X) printk("%25s: %08X\n", #X, X)
891 D(lcd->screen);
892 D(lcd->horztiming);
893 D(lcd->verttiming);
894 D(lcd->clkcontrol);
895 D(lcd->pwmdiv);
896 D(lcd->pwmhi);
897 D(lcd->outmask);
898 D(lcd->fifoctrl);
899 D(lcd->window[0].winctrl0);
900 D(lcd->window[0].winctrl1);
901 D(lcd->window[0].winctrl2);
902 D(lcd->window[0].winbuf0);
903 D(lcd->window[0].winbuf1);
904 D(lcd->window[0].winbufctrl);
905 D(lcd->window[1].winctrl0);
906 D(lcd->window[1].winctrl1);
907 D(lcd->window[1].winctrl2);
908 D(lcd->window[1].winbuf0);
909 D(lcd->window[1].winbuf1);
910 D(lcd->window[1].winbufctrl);
911 D(lcd->window[2].winctrl0);
912 D(lcd->window[2].winctrl1);
913 D(lcd->window[2].winctrl2);
914 D(lcd->window[2].winbuf0);
915 D(lcd->window[2].winbuf1);
916 D(lcd->window[2].winbufctrl);
917 D(lcd->window[3].winctrl0);
918 D(lcd->window[3].winctrl1);
919 D(lcd->window[3].winctrl2);
920 D(lcd->window[3].winbuf0);
921 D(lcd->window[3].winbuf1);
922 D(lcd->window[3].winbufctrl);
923 D(lcd->winenable);
924 D(lcd->intenable);
925 D(lcd->intstatus);
926 D(lcd->backcolor);
927 D(lcd->winenable);
928 D(lcd->colorkey);
929 D(lcd->colorkeymsk);
930 D(lcd->hwc.cursorctrl);
931 D(lcd->hwc.cursorpos);
932 D(lcd->hwc.cursorcolor0);
933 D(lcd->hwc.cursorcolor1);
934 D(lcd->hwc.cursorcolor2);
935 D(lcd->hwc.cursorcolor3);
936#endif
937}
938
939static void au1200_setmode(struct au1200fb_device *fbdev)
940{
941 int plane = fbdev->plane;
942 /* Window/plane setup */
943 lcd->window[plane].winctrl1 = ( 0
944 | LCD_WINCTRL1_PRI_N(plane)
945 | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */
946 ) ;
947
948 au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos);
949
950 lcd->window[plane].winctrl2 = ( 0
951 | LCD_WINCTRL2_CKMODE_00
952 | LCD_WINCTRL2_DBM
c329f606 953 | LCD_WINCTRL2_BX_N(fbdev->fb_info->fix.line_length)
f95ec3c6
RB		 954 | LCD_WINCTRL2_SCX_1
955 | LCD_WINCTRL2_SCY_1
956 ) ;
957 lcd->winenable |= win->w[plane].mode_winenable;
2f73bfbe 958 wmb(); /* drain writebuffer */
f95ec3c6
RB		 959}
960
961
962/* Inline helpers */
963
964/*#define panel_is_dual(panel) ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
965/*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
966
967#define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN)
968
969/* Bitfields format supported by the controller. */
970static struct fb_bitfield rgb_bitfields[][4] = {
971 /* Red, Green, Blue, Transp */
972 [LCD_WINCTRL1_FRM_16BPP655 >> 25] =
973 { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
974
975 [LCD_WINCTRL1_FRM_16BPP565 >> 25] =
976 { { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
977
978 [LCD_WINCTRL1_FRM_16BPP556 >> 25] =
979 { { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } },
980
981 [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] =
982 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
983
984 [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] =
985 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } },
986
987 [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] =
988 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } },
989
990 [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] =
991 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } },
992
993 [LCD_WINCTRL1_FRM_24BPP >> 25] =
994 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } },
995
996 [LCD_WINCTRL1_FRM_32BPP >> 25] =
997 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } },
998};
999
1000/*-------------------------------------------------------------------------*/
1001
1002/* Helpers */
1003
1004static void au1200fb_update_fbinfo(struct fb_info *fbi)
1005{
1006 /* FIX!!!! This also needs to take the window pixel format into account!!! */
1007
1008 /* Update var-dependent FB info */
1009 if (panel_is_color(panel)) {
1010 if (fbi->var.bits_per_pixel <= 8) {
1011 /* palettized */
1012 fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR;
1013 fbi->fix.line_length = fbi->var.xres_virtual /
1014 (8/fbi->var.bits_per_pixel);
1015 } else {
1016 /* non-palettized */
1017 fbi->fix.visual = FB_VISUAL_TRUECOLOR;
1018 fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8);
1019 }
1020 } else {
1021 /* mono FIX!!! mono 8 and 4 bits */
1022 fbi->fix.visual = FB_VISUAL_MONO10;
1023 fbi->fix.line_length = fbi->var.xres_virtual / 8;
1024 }
1025
1026 fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual;
1027 print_dbg("line length: %d\n", fbi->fix.line_length);
1028 print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel);
1029}
1030
1031/*-------------------------------------------------------------------------*/
1032
1033/* AU1200 framebuffer driver */
1034
1035/* fb_check_var
1036 * Validate var settings with hardware restrictions and modify it if necessary
1037 */
1038static int au1200fb_fb_check_var(struct fb_var_screeninfo *var,
1039 struct fb_info *fbi)
1040{
c329f606 1041 struct au1200fb_device *fbdev = fbi->par;
f95ec3c6
RB		 1042 u32 pixclock;
1043 int screen_size, plane;
1044
1045 plane = fbdev->plane;
1046
1047 /* Make sure that the mode respect all LCD controller and
1048 * panel restrictions. */
1049 var->xres = win->w[plane].xres;
1050 var->yres = win->w[plane].yres;
1051
1052 /* No need for virtual resolution support */
1053 var->xres_virtual = var->xres;
1054 var->yres_virtual = var->yres;
1055
1056 var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1);
1057
1058 screen_size = var->xres_virtual * var->yres_virtual;
1059 if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8);
1060 else screen_size /= (8/var->bits_per_pixel);
1061
1062 if (fbdev->fb_len < screen_size)
1063 return -EINVAL; /* Virtual screen is to big, abort */
1064
1065 /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */
1066 /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel
1067 * clock can only be obtain by dividing this value by an even integer.
1068 * Fallback to a slower pixel clock if necessary. */
1069 pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin);
732eacc0 1070 pixclock = min3(pixclock, fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2);
f95ec3c6
RB		 1071
1072 if (AU1200_LCD_MAX_CLK % pixclock) {
1073 int diff = AU1200_LCD_MAX_CLK % pixclock;
1074 pixclock -= diff;
1075 }
1076
1077 var->pixclock = KHZ2PICOS(pixclock/1000);
1078#if 0
1079 if (!panel_is_active(panel)) {
1080 int pcd = AU1200_LCD_MAX_CLK / (pixclock * 2) - 1;
1081
1082 if (!panel_is_color(panel)
1083 && (panel->control_base & LCD_CONTROL_MPI) && (pcd < 3)) {
1084 /* STN 8bit mono panel support is up to 6MHz pixclock */
1085 var->pixclock = KHZ2PICOS(6000);
1086 } else if (!pcd) {
1087 /* Other STN panel support is up to 12MHz */
1088 var->pixclock = KHZ2PICOS(12000);
1089 }
1090 }
1091#endif
1092 /* Set bitfield accordingly */
1093 switch (var->bits_per_pixel) {
1094 case 16:
1095 {
1096 /* 16bpp True color.
1097 * These must be set to MATCH WINCTRL[FORM] */
1098 int idx;
1099 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1100 var->red = rgb_bitfields[idx][0];
1101 var->green = rgb_bitfields[idx][1];
1102 var->blue = rgb_bitfields[idx][2];
1103 var->transp = rgb_bitfields[idx][3];
1104 break;
1105 }
1106
1107 case 32:
1108 {
1109 /* 32bpp True color.
1110 * These must be set to MATCH WINCTRL[FORM] */
1111 int idx;
1112 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1113 var->red = rgb_bitfields[idx][0];
1114 var->green = rgb_bitfields[idx][1];
1115 var->blue = rgb_bitfields[idx][2];
1116 var->transp = rgb_bitfields[idx][3];
1117 break;
1118 }
1119 default:
1120 print_dbg("Unsupported depth %dbpp", var->bits_per_pixel);
1121 return -EINVAL;
1122 }
1123
1124 return 0;
1125}
1126
1127/* fb_set_par
1128 * Set hardware with var settings. This will enable the controller with a
1129 * specific mode, normally validated with the fb_check_var method
1130 */
1131static int au1200fb_fb_set_par(struct fb_info *fbi)
1132{
c329f606 1133 struct au1200fb_device *fbdev = fbi->par;
f95ec3c6
RB		 1134
1135 au1200fb_update_fbinfo(fbi);
1136 au1200_setmode(fbdev);
1137
1138 return 0;
1139}
1140
1141/* fb_setcolreg
1142 * Set color in LCD palette.
1143 */
1144static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green,
1145 unsigned blue, unsigned transp, struct fb_info *fbi)
1146{
1147 volatile u32 *palette = lcd->palette;
1148 u32 value;
1149
1150 if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1))
1151 return -EINVAL;
1152
1153 if (fbi->var.grayscale) {
1154 /* Convert color to grayscale */
1155 red = green = blue =
1156 (19595 * red + 38470 * green + 7471 * blue) >> 16;
1157 }
1158
1159 if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) {
1160 /* Place color in the pseudopalette */
1161 if (regno > 16)
1162 return -EINVAL;
1163
1164 palette = (u32*) fbi->pseudo_palette;
1165
1166 red >>= (16 - fbi->var.red.length);
1167 green >>= (16 - fbi->var.green.length);
1168 blue >>= (16 - fbi->var.blue.length);
1169
1170 value = (red << fbi->var.red.offset) |
1171 (green << fbi->var.green.offset)|
1172 (blue << fbi->var.blue.offset);
1173 value &= 0xFFFF;
1174
1175 } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) {
1176 /* COLOR TFT PALLETTIZED (use RGB 565) */
1177 value = (red & 0xF800)|((green >> 5) &
1178 0x07E0)|((blue >> 11) & 0x001F);
1179 value &= 0xFFFF;
1180
1181 } else if (0 /*panel_is_color(fbdev->panel)*/) {
1182 /* COLOR STN MODE */
1183 value = 0x1234;
1184 value &= 0xFFF;
1185 } else {
1186 /* MONOCHROME MODE */
1187 value = (green >> 12) & 0x000F;
1188 value &= 0xF;
1189 }
1190
1191 palette[regno] = value;
1192
1193 return 0;
1194}
1195
1196/* fb_blank
1197 * Blank the screen. Depending on the mode, the screen will be
1198 * activated with the backlight color, or desactivated
1199 */
1200static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi)
1201{
a9b71a8f
ML		 1202 struct au1200fb_device *fbdev = fbi->par;
1203
f95ec3c6
RB		 1204 /* Short-circuit screen blanking */
1205 if (noblanking)
1206 return 0;
1207
1208 switch (blank_mode) {
1209
1210 case FB_BLANK_UNBLANK:
1211 case FB_BLANK_NORMAL:
1212 /* printk("turn on panel\n"); */
a9b71a8f 1213 au1200_setpanel(panel, fbdev->pd);
f95ec3c6
RB		 1214 break;
1215 case FB_BLANK_VSYNC_SUSPEND:
1216 case FB_BLANK_HSYNC_SUSPEND:
1217 case FB_BLANK_POWERDOWN:
1218 /* printk("turn off panel\n"); */
a9b71a8f 1219 au1200_setpanel(NULL, fbdev->pd);
f95ec3c6
RB		 1220 break;
1221 default:
1222 break;
1223
1224 }
1225
1226 /* FB_BLANK_NORMAL is a soft blank */
1227 return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0;
1228}
1229
1230/* fb_mmap
1231 * Map video memory in user space. We don't use the generic fb_mmap
1232 * method mainly to allow the use of the TLB streaming flag (CCA=6)
1233 */
1234static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
f95ec3c6 1235{
c329f606 1236 struct au1200fb_device *fbdev = info->par;
f95ec3c6 1237
f95ec3c6
RB		 1238 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1239 pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */
1240
7314e613 1241 return vm_iomap_memory(vma, fbdev->fb_phys, fbdev->fb_len);
f95ec3c6
RB		 1242}
1243
1244static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
1245{
1246
1247 unsigned int hi1, divider;
1248
1249 /* SCREEN_SIZE: user cannot reset size, must switch panel choice */
1250
1251 if (pdata->flags & SCREEN_BACKCOLOR)
1252 lcd->backcolor = pdata->backcolor;
1253
1254 if (pdata->flags & SCREEN_BRIGHTNESS) {
1255
1256 // limit brightness pwm duty to >= 30/1600
1257 if (pdata->brightness < 30) {
1258 pdata->brightness = 30;
1259 }
1260 divider = (lcd->pwmdiv & 0x3FFFF) + 1;
1261 hi1 = (lcd->pwmhi >> 16) + 1;
1262 hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8);
1263 lcd->pwmhi &= 0xFFFF;
1264 lcd->pwmhi |= (hi1 << 16);
1265 }
1266
1267 if (pdata->flags & SCREEN_COLORKEY)
1268 lcd->colorkey = pdata->colorkey;
1269
1270 if (pdata->flags & SCREEN_MASK)
1271 lcd->colorkeymsk = pdata->mask;
2f73bfbe 1272 wmb(); /* drain writebuffer */
f95ec3c6
RB		 1273}
1274
1275static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
1276{
1277 unsigned int hi1, divider;
1278
1279 pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1;
1280 pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1;
1281
1282 pdata->backcolor = lcd->backcolor;
1283 pdata->colorkey = lcd->colorkey;
1284 pdata->mask = lcd->colorkeymsk;
1285
1286 // brightness
1287 hi1 = (lcd->pwmhi >> 16) + 1;
1288 divider = (lcd->pwmdiv & 0x3FFFF) + 1;
1289 pdata->brightness = ((hi1 << 8) / divider) - 1;
2f73bfbe 1290 wmb(); /* drain writebuffer */
f95ec3c6
RB		 1291}
1292
1293static void set_window(unsigned int plane,
1294 struct au1200_lcd_window_regs_t *pdata)
1295{
1296 unsigned int val, bpp;
1297
1298 /* Window control register 0 */
1299 if (pdata->flags & WIN_POSITION) {
1300 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX |
1301 LCD_WINCTRL0_OY);
1302 val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX);
1303 val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY);
1304 lcd->window[plane].winctrl0 = val;
1305 }
1306 if (pdata->flags & WIN_ALPHA_COLOR) {
1307 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A);
1308 val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A);
1309 lcd->window[plane].winctrl0 = val;
1310 }
1311 if (pdata->flags & WIN_ALPHA_MODE) {
1312 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN);
1313 val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN);
1314 lcd->window[plane].winctrl0 = val;
1315 }
1316
1317 /* Window control register 1 */
1318 if (pdata->flags & WIN_PRIORITY) {
1319 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI);
1320 val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI);
1321 lcd->window[plane].winctrl1 = val;
1322 }
1323 if (pdata->flags & WIN_CHANNEL) {
1324 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE);
1325 val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE);
1326 lcd->window[plane].winctrl1 = val;
1327 }
1328 if (pdata->flags & WIN_BUFFER_FORMAT) {
1329 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM);
1330 val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM);
1331 lcd->window[plane].winctrl1 = val;
1332 }
1333 if (pdata->flags & WIN_COLOR_ORDER) {
1334 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO);
1335 val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO);
1336 lcd->window[plane].winctrl1 = val;
1337 }
1338 if (pdata->flags & WIN_PIXEL_ORDER) {
1339 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO);
1340 val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO);
1341 lcd->window[plane].winctrl1 = val;
1342 }
1343 if (pdata->flags & WIN_SIZE) {
1344 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX |
1345 LCD_WINCTRL1_SZY);
1346 val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX);
1347 val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY);
1348 lcd->window[plane].winctrl1 = val;
1349 /* program buffer line width */
1350 bpp = winbpp(val) / 8;
1351 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX);
1352 val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX);
1353 lcd->window[plane].winctrl2 = val;
1354 }
1355
1356 /* Window control register 2 */
1357 if (pdata->flags & WIN_COLORKEY_MODE) {
1358 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE);
1359 val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE);
1360 lcd->window[plane].winctrl2 = val;
1361 }
1362 if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) {
1363 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM);
1364 val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM);
1365 lcd->window[plane].winctrl2 = val;
1366 }
1367 if (pdata->flags & WIN_RAM_ARRAY_MODE) {
1368 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM);
1369 val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM);
1370 lcd->window[plane].winctrl2 = val;
1371 }
1372
1373 /* Buffer line width programmed with WIN_SIZE */
1374
1375 if (pdata->flags & WIN_BUFFER_SCALE) {
1376 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX |
1377 LCD_WINCTRL2_SCY);
1378 val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX);
1379 val |= ((pdata->ysize) & LCD_WINCTRL2_SCY);
1380 lcd->window[plane].winctrl2 = val;
1381 }
1382
1383 if (pdata->flags & WIN_ENABLE) {
1384 val = lcd->winenable;
1385 val &= ~(1<<plane);
1386 val |= (pdata->enable & 1) << plane;
1387 lcd->winenable = val;
1388 }
2f73bfbe 1389 wmb(); /* drain writebuffer */
f95ec3c6
RB		 1390}
1391
1392static void get_window(unsigned int plane,
1393 struct au1200_lcd_window_regs_t *pdata)
1394{
1395 /* Window control register 0 */
1396 pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21;
1397 pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10;
1398 pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2;
1399 pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1;
1400
1401 /* Window control register 1 */
1402 pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30;
1403 pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29;
1404 pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1405 pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24;
1406 pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22;
1407 pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1;
1408 pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1;
1409
1410 /* Window control register 2 */
1411 pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24;
1412 pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23;
1413 pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21;
1414
1415 pdata->enable = (lcd->winenable >> plane) & 1;
2f73bfbe 1416 wmb(); /* drain writebuffer */
f95ec3c6
RB		 1417}
1418
1419static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd,
1420 unsigned long arg)
1421{
a9b71a8f 1422 struct au1200fb_device *fbdev = info->par;
f95ec3c6
RB		 1423 int plane;
1424 int val;
1425
f95ec3c6
RB		 1426 plane = fbinfo2index(info);
1427 print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane);
1428
1429 if (cmd == AU1200_LCD_FB_IOCTL) {
1430 struct au1200_lcd_iodata_t iodata;
1431
1432 if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata)))
1433 return -EFAULT;
1434
1435 print_dbg("FB IOCTL called\n");
1436
1437 switch (iodata.subcmd) {
1438 case AU1200_LCD_SET_SCREEN:
1439 print_dbg("AU1200_LCD_SET_SCREEN\n");
1440 set_global(cmd, &iodata.global);
1441 break;
1442
1443 case AU1200_LCD_GET_SCREEN:
1444 print_dbg("AU1200_LCD_GET_SCREEN\n");
1445 get_global(cmd, &iodata.global);
1446 break;
1447
1448 case AU1200_LCD_SET_WINDOW:
1449 print_dbg("AU1200_LCD_SET_WINDOW\n");
1450 set_window(plane, &iodata.window);
1451 break;
1452
1453 case AU1200_LCD_GET_WINDOW:
1454 print_dbg("AU1200_LCD_GET_WINDOW\n");
1455 get_window(plane, &iodata.window);
1456 break;
1457
1458 case AU1200_LCD_SET_PANEL:
1459 print_dbg("AU1200_LCD_SET_PANEL\n");
1460 if ((iodata.global.panel_choice >= 0) &&
1461 (iodata.global.panel_choice <
1462 NUM_PANELS))
1463 {
1464 struct panel_settings *newpanel;
1465 panel_index = iodata.global.panel_choice;
1466 newpanel = &known_lcd_panels[panel_index];
a9b71a8f 1467 au1200_setpanel(newpanel, fbdev->pd);
f95ec3c6
RB		 1468 }
1469 break;
1470
1471 case AU1200_LCD_GET_PANEL:
1472 print_dbg("AU1200_LCD_GET_PANEL\n");
1473 iodata.global.panel_choice = panel_index;
1474 break;
1475
1476 default:
1477 return -EINVAL;
1478 }
1479
1480 val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata));
1481 if (val) {
1482 print_dbg("error: could not copy %d bytes\n", val);
1483 return -EFAULT;
1484 }
1485 }
1486
1487 return 0;
1488}
1489
1490
1491static struct fb_ops au1200fb_fb_ops = {
1492 .owner = THIS_MODULE,
1493 .fb_check_var = au1200fb_fb_check_var,
1494 .fb_set_par = au1200fb_fb_set_par,
1495 .fb_setcolreg = au1200fb_fb_setcolreg,
1496 .fb_blank = au1200fb_fb_blank,
4ee58461
ML		 1497 .fb_fillrect = sys_fillrect,
1498 .fb_copyarea = sys_copyarea,
1499 .fb_imageblit = sys_imageblit,
1500 .fb_read = fb_sys_read,
1501 .fb_write = fb_sys_write,
f95ec3c6
RB		 1502 .fb_sync = NULL,
1503 .fb_ioctl = au1200fb_ioctl,
1504 .fb_mmap = au1200fb_fb_mmap,
1505};
1506
1507/*-------------------------------------------------------------------------*/
1508
7d12e780 1509static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id)
f95ec3c6
RB		 1510{
1511 /* Nothing to do for now, just clear any pending interrupt */
1512 lcd->intstatus = lcd->intstatus;
2f73bfbe 1513 wmb(); /* drain writebuffer */
f95ec3c6
RB		 1514
1515 return IRQ_HANDLED;
1516}
1517
1518/*-------------------------------------------------------------------------*/
1519
1520/* AU1200 LCD device probe helpers */
1521
1522static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev)
1523{
c329f606 1524 struct fb_info *fbi = fbdev->fb_info;
f95ec3c6
RB		 1525 int bpp;
1526
f95ec3c6
RB		 1527 fbi->fbops = &au1200fb_fb_ops;
1528
1529 bpp = winbpp(win->w[fbdev->plane].mode_winctrl1);
1530
1531 /* Copy monitor specs from panel data */
1532 /* fixme: we're setting up LCD controller windows, so these dont give a
1533 damn as to what the monitor specs are (the panel itself does, but that
25985edc 1534 isn't done here...so maybe need a generic catchall monitor setting??? */
f95ec3c6
RB		 1535 memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs));
1536
1537 /* We first try the user mode passed in argument. If that failed,
1538 * or if no one has been specified, we default to the first mode of the
1539 * panel list. Note that after this call, var data will be set */
1540 if (!fb_find_mode(&fbi->var,
1541 fbi,
1542 NULL, /* drv_info.opt_mode, */
1543 fbi->monspecs.modedb,
1544 fbi->monspecs.modedb_len,
1545 fbi->monspecs.modedb,
1546 bpp)) {
1547
1548 print_err("Cannot find valid mode for panel %s", panel->name);
1549 return -EFAULT;
1550 }
1551
dd00cc48 1552 fbi->pseudo_palette = kcalloc(16, sizeof(u32), GFP_KERNEL);
f95ec3c6
RB		 1553 if (!fbi->pseudo_palette) {
1554 return -ENOMEM;
1555 }
f95ec3c6
RB		 1556
1557 if (fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0) < 0) {
1558 print_err("Fail to allocate colormap (%d entries)",
1559 AU1200_LCD_NBR_PALETTE_ENTRIES);
1560 kfree(fbi->pseudo_palette);
1561 return -EFAULT;
1562 }
1563
1564 strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id));
1565 fbi->fix.smem_start = fbdev->fb_phys;
1566 fbi->fix.smem_len = fbdev->fb_len;
1567 fbi->fix.type = FB_TYPE_PACKED_PIXELS;
1568 fbi->fix.xpanstep = 0;
1569 fbi->fix.ypanstep = 0;
1570 fbi->fix.mmio_start = 0;
1571 fbi->fix.mmio_len = 0;
1572 fbi->fix.accel = FB_ACCEL_NONE;
1573
1574 fbi->screen_base = (char __iomem *) fbdev->fb_mem;
1575
1576 au1200fb_update_fbinfo(fbi);
1577
1578 return 0;
1579}
1580
1581/*-------------------------------------------------------------------------*/
1582
f95ec3c6 1583
a9b71a8f
ML		 1584static int au1200fb_setup(struct au1200fb_platdata *pd)
1585{
1586 char *options = NULL;
1587 char *this_opt, *endptr;
1588 int num_panels = ARRAY_SIZE(known_lcd_panels);
1589 int panel_idx = -1;
1590
1591 fb_get_options(DRIVER_NAME, &options);
1592
1593 if (!options)
1594 goto out;
1595
1596 while ((this_opt = strsep(&options, ",")) != NULL) {
1597 /* Panel option - can be panel name,
1598 * "bs" for board-switch, or number/index */
1599 if (!strncmp(this_opt, "panel:", 6)) {
1600 int i;
1601 long int li;
1602 char *endptr;
1603 this_opt += 6;
1604 /* First check for index, which allows
1605 * to short circuit this mess */
1606 li = simple_strtol(this_opt, &endptr, 0);
1607 if (*endptr == '\0')
1608 panel_idx = (int)li;
1609 else if (strcmp(this_opt, "bs") == 0)
1610 panel_idx = pd->panel_index();
1611 else {
1612 for (i = 0; i < num_panels; i++) {
1613 if (!strcmp(this_opt,
1614 known_lcd_panels[i].name)) {
1615 panel_idx = i;
1616 break;
1617 }
1618 }
1619 }
1620 if ((panel_idx < 0) || (panel_idx >= num_panels))
1621 print_warn("Panel %s not supported!", this_opt);
1622 else
1623 panel_index = panel_idx;
1624
1625 } else if (strncmp(this_opt, "nohwcursor", 10) == 0)
1626 nohwcursor = 1;
1627 else if (strncmp(this_opt, "devices:", 8) == 0) {
1628 this_opt += 8;
1629 device_count = simple_strtol(this_opt, &endptr, 0);
1630 if ((device_count < 0) ||
1631 (device_count > MAX_DEVICE_COUNT))
1632 device_count = MAX_DEVICE_COUNT;
1633 } else if (strncmp(this_opt, "wincfg:", 7) == 0) {
1634 this_opt += 7;
1635 window_index = simple_strtol(this_opt, &endptr, 0);
1636 if ((window_index < 0) ||
1637 (window_index >= ARRAY_SIZE(windows)))
1638 window_index = DEFAULT_WINDOW_INDEX;
1639 } else if (strncmp(this_opt, "off", 3) == 0)
1640 return 1;
1641 else
1642 print_warn("Unsupported option \"%s\"", this_opt);
1643 }
1644
1645out:
1646 return 0;
1647}
1648
1649/* AU1200 LCD controller device driver */
48c68c4f 1650static int au1200fb_drv_probe(struct platform_device *dev)
f95ec3c6
RB		 1651{
1652 struct au1200fb_device *fbdev;
a9b71a8f 1653 struct au1200fb_platdata *pd;
c329f606 1654 struct fb_info *fbi = NULL;
f95ec3c6 1655 unsigned long page;
1630d85a 1656 int bpp, plane, ret, irq;
f95ec3c6 1657
a9b71a8f
ML		 1658 print_info("" DRIVER_DESC "");
1659
1660 pd = dev->dev.platform_data;
1661 if (!pd)
1662 return -ENODEV;
1663
1664 /* Setup driver with options */
1665 if (au1200fb_setup(pd))
1666 return -ENODEV;
1667
1668 /* Point to the panel selected */
1669 panel = &known_lcd_panels[panel_index];
1670 win = &windows[window_index];
1671
1672 printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name);
1673 printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name);
1674
c329f606
ML		 1675 /* shut gcc up */
1676 ret = 0;
1677 fbdev = NULL;
f95ec3c6 1678
8be90b07 1679 for (plane = 0; plane < device_count; ++plane) {
f95ec3c6
RB		 1680 bpp = winbpp(win->w[plane].mode_winctrl1);
1681 if (win->w[plane].xres == 0)
1682 win->w[plane].xres = panel->Xres;
1683 if (win->w[plane].yres == 0)
1684 win->w[plane].yres = panel->Yres;
1685
c329f606
ML		 1686 fbi = framebuffer_alloc(sizeof(struct au1200fb_device),
1687 &dev->dev);
1688 if (!fbi)
1689 goto failed;
1690
1691 _au1200fb_infos[plane] = fbi;
1692 fbdev = fbi->par;
1693 fbdev->fb_info = fbi;
a9b71a8f 1694 fbdev->pd = pd;
c329f606 1695
f95ec3c6
RB		 1696 fbdev->plane = plane;
1697
1698 /* Allocate the framebuffer to the maximum screen size */
1699 fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8;
1700
93019734 1701 fbdev->fb_mem = dmam_alloc_noncoherent(&dev->dev,
f95ec3c6
RB		 1702 PAGE_ALIGN(fbdev->fb_len),
1703 &fbdev->fb_phys, GFP_KERNEL);
1704 if (!fbdev->fb_mem) {
1705 print_err("fail to allocate frambuffer (size: %dK))",
1706 fbdev->fb_len / 1024);
1707 return -ENOMEM;
1708 }
1709
1710 /*
1711 * Set page reserved so that mmap will work. This is necessary
1712 * since we'll be remapping normal memory.
1713 */
1714 for (page = (unsigned long)fbdev->fb_phys;
1715 page < PAGE_ALIGN((unsigned long)fbdev->fb_phys +
1716 fbdev->fb_len);
1717 page += PAGE_SIZE) {
1718 SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */
1719 }
1720 print_dbg("Framebuffer memory map at %p", fbdev->fb_mem);
1721 print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024);
1722
1723 /* Init FB data */
1724 if ((ret = au1200fb_init_fbinfo(fbdev)) < 0)
1725 goto failed;
1726
1727 /* Register new framebuffer */
c329f606
ML		 1728 ret = register_framebuffer(fbi);
1729 if (ret < 0) {
f95ec3c6
RB		 1730 print_err("cannot register new framebuffer");
1731 goto failed;
1732 }
1733
c329f606 1734 au1200fb_fb_set_par(fbi);
f95ec3c6
RB		 1735
1736#if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)
1737 if (plane == 0)
c329f606 1738 if (fb_prepare_logo(fbi, FB_ROTATE_UR)) {
f95ec3c6 1739 /* Start display and show logo on boot */
c329f606
ML		 1740 fb_set_cmap(&fbi->cmap, fbi);
1741 fb_show_logo(fbi, FB_ROTATE_UR);
f95ec3c6
RB		 1742 }
1743#endif
1744 }
1745
1746 /* Now hook interrupt too */
1630d85a
ML		 1747 irq = platform_get_irq(dev, 0);
1748 ret = request_irq(irq, au1200fb_handle_irq,
f8798ccb 1749 IRQF_SHARED, "lcd", (void *)dev);
1630d85a 1750 if (ret) {
f95ec3c6 1751 print_err("fail to request interrupt line %d (err: %d)",
1630d85a 1752 irq, ret);
f95ec3c6
RB		 1753 goto failed;
1754 }
1755
a9b71a8f
ML		 1756 platform_set_drvdata(dev, pd);
1757
1758 /* Kickstart the panel */
1759 au1200_setpanel(panel, pd);
1760
f95ec3c6
RB		 1761 return 0;
1762
1763failed:
1764 /* NOTE: This only does the current plane/window that failed; others are still active */
c329f606
ML		 1765 if (fbi) {
1766 if (fbi->cmap.len != 0)
1767 fb_dealloc_cmap(&fbi->cmap);
1768 kfree(fbi->pseudo_palette);
1769 }
f95ec3c6
RB		 1770 if (plane == 0)
1771 free_irq(AU1200_LCD_INT, (void*)dev);
1772 return ret;
1773}
1774
48c68c4f 1775static int au1200fb_drv_remove(struct platform_device *dev)
f95ec3c6 1776{
a9b71a8f 1777 struct au1200fb_platdata *pd = platform_get_drvdata(dev);
f95ec3c6 1778 struct au1200fb_device *fbdev;
c329f606 1779 struct fb_info *fbi;
f95ec3c6
RB		 1780 int plane;
1781
f95ec3c6 1782 /* Turn off the panel */
a9b71a8f 1783 au1200_setpanel(NULL, pd);
f95ec3c6 1784
8be90b07 1785 for (plane = 0; plane < device_count; ++plane) {
c329f606
ML		 1786 fbi = _au1200fb_infos[plane];
1787 fbdev = fbi->par;
f95ec3c6
RB		 1788
1789 /* Clean up all probe data */
c329f606 1790 unregister_framebuffer(fbi);
c329f606
ML		 1791 if (fbi->cmap.len != 0)
1792 fb_dealloc_cmap(&fbi->cmap);
1793 kfree(fbi->pseudo_palette);
1794
1795 framebuffer_release(fbi);
1796 _au1200fb_infos[plane] = NULL;
f95ec3c6
RB		 1797 }
1798
1630d85a 1799 free_irq(platform_get_irq(dev, 0), (void *)dev);
f95ec3c6
RB		 1800
1801 return 0;
1802}
1803
1804#ifdef CONFIG_PM
98707fcc 1805static int au1200fb_drv_suspend(struct device *dev)
f95ec3c6 1806{
a9b71a8f
ML		 1807 struct au1200fb_platdata *pd = dev_get_drvdata(dev);
1808 au1200_setpanel(NULL, pd);
98707fcc
ML		 1809
1810 lcd->outmask = 0;
2f73bfbe 1811 wmb(); /* drain writebuffer */
98707fcc 1812
f95ec3c6
RB		 1813 return 0;
1814}
1815
98707fcc 1816static int au1200fb_drv_resume(struct device *dev)
f95ec3c6 1817{
a9b71a8f 1818 struct au1200fb_platdata *pd = dev_get_drvdata(dev);
98707fcc
ML		 1819 struct fb_info *fbi;
1820 int i;
1821
1822 /* Kickstart the panel */
a9b71a8f 1823 au1200_setpanel(panel, pd);
98707fcc 1824
8be90b07 1825 for (i = 0; i < device_count; i++) {
98707fcc
ML		 1826 fbi = _au1200fb_infos[i];
1827 au1200fb_fb_set_par(fbi);
1828 }
1829
f95ec3c6
RB		 1830 return 0;
1831}
98707fcc
ML		 1832
1833static const struct dev_pm_ops au1200fb_pmops = {
1834 .suspend = au1200fb_drv_suspend,
1835 .resume = au1200fb_drv_resume,
1836 .freeze = au1200fb_drv_suspend,
1837 .thaw = au1200fb_drv_resume,
1838};
1839
1840#define AU1200FB_PMOPS (&au1200fb_pmops)
1841
1842#else
1843#define AU1200FB_PMOPS NULL
f95ec3c6
RB		 1844#endif /* CONFIG_PM */
1845
7a192ec3
ML		 1846static struct platform_driver au1200fb_driver = {
1847 .driver = {
98707fcc
ML		 1848 .name = "au1200-lcd",
1849 .owner = THIS_MODULE,
1850 .pm = AU1200FB_PMOPS,
7a192ec3 1851 },
f95ec3c6 1852 .probe = au1200fb_drv_probe,
48c68c4f 1853 .remove = au1200fb_drv_remove,
f95ec3c6 1854};
d07b3191 1855module_platform_driver(au1200fb_driver);
f95ec3c6
RB		 1856
1857MODULE_DESCRIPTION(DRIVER_DESC);
1858MODULE_LICENSE("GPL");
Linux 6.x block layer and io_uring tree(s)