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gerrit-public.fairphone.software / fp2-dev / kernel / msm / 693d92a1bbc9e42681c42ed190bd42b636ca876f / . / drivers / video / omap2 / dss / dispc.c
blob: 7804779c9da150bb2ddf431cc9ac1134ef901e89 [file] [log] [blame]
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1/*
2 * linux/drivers/video/omap2/dss/dispc.c
3 *
4 * Copyright (C) 2009 Nokia Corporation
5 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
6 *
7 * Some code and ideas taken from drivers/video/omap/ driver
8 * by Imre Deak.
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License version 2 as published by
12 * the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * more details.
18 *
19 * You should have received a copy of the GNU General Public License along with
20 * this program. If not, see <http://www.gnu.org/licenses/>.
21 */
22
23#define DSS_SUBSYS_NAME "DISPC"
24
25#include <linux/kernel.h>
26#include <linux/dma-mapping.h>
27#include <linux/vmalloc.h>
28#include <linux/clk.h>
29#include <linux/io.h>
30#include <linux/jiffies.h>
31#include <linux/seq_file.h>
32#include <linux/delay.h>
33#include <linux/workqueue.h>
Tomi Valkeinenab83b142010-06-09 15:31:01 +0300[diff] [blame]34#include <linux/hardirq.h>
archit tanejaaffe3602011-02-23 08:41:03 +0000[diff] [blame]35#include <linux/interrupt.h>
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]36
37#include <plat/sram.h>
38#include <plat/clock.h>
39
40#include <plat/display.h>
41
42#include "dss.h"
Archit Tanejaa0acb552010-09-15 19:20:00 +0530[diff] [blame]43#include "dss_features.h"
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]44
45/* DISPC */
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]46#define DISPC_SZ_REGS SZ_4K
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]47
48struct dispc_reg { u16 idx; };
49
50#define DISPC_REG(idx) ((const struct dispc_reg) { idx })
51
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]52/*
53 * DISPC common registers and
54 * DISPC channel registers , ch = 0 for LCD, ch = 1 for
55 * DIGIT, and ch = 2 for LCD2
56 */
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]57#define DISPC_REVISION DISPC_REG(0x0000)
58#define DISPC_SYSCONFIG DISPC_REG(0x0010)
59#define DISPC_SYSSTATUS DISPC_REG(0x0014)
60#define DISPC_IRQSTATUS DISPC_REG(0x0018)
61#define DISPC_IRQENABLE DISPC_REG(0x001C)
62#define DISPC_CONTROL DISPC_REG(0x0040)
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]63#define DISPC_CONTROL2 DISPC_REG(0x0238)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]64#define DISPC_CONFIG DISPC_REG(0x0044)
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]65#define DISPC_CONFIG2 DISPC_REG(0x0620)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]66#define DISPC_CAPABLE DISPC_REG(0x0048)
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]67#define DISPC_DEFAULT_COLOR(ch) DISPC_REG(ch == 0 ? 0x004C : \
68 (ch == 1 ? 0x0050 : 0x03AC))
69#define DISPC_TRANS_COLOR(ch) DISPC_REG(ch == 0 ? 0x0054 : \
70 (ch == 1 ? 0x0058 : 0x03B0))
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]71#define DISPC_LINE_STATUS DISPC_REG(0x005C)
72#define DISPC_LINE_NUMBER DISPC_REG(0x0060)
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]73#define DISPC_TIMING_H(ch) DISPC_REG(ch != 2 ? 0x0064 : 0x0400)
74#define DISPC_TIMING_V(ch) DISPC_REG(ch != 2 ? 0x0068 : 0x0404)
75#define DISPC_POL_FREQ(ch) DISPC_REG(ch != 2 ? 0x006C : 0x0408)
Murthy, Raghuveerce7fa5e2011-03-03 09:27:59 -0600[diff] [blame]76#define DISPC_DIVISORo(ch) DISPC_REG(ch != 2 ? 0x0070 : 0x040C)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]77#define DISPC_GLOBAL_ALPHA DISPC_REG(0x0074)
78#define DISPC_SIZE_DIG DISPC_REG(0x0078)
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]79#define DISPC_SIZE_LCD(ch) DISPC_REG(ch != 2 ? 0x007C : 0x03CC)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]80
81/* DISPC GFX plane */
82#define DISPC_GFX_BA0 DISPC_REG(0x0080)
83#define DISPC_GFX_BA1 DISPC_REG(0x0084)
84#define DISPC_GFX_POSITION DISPC_REG(0x0088)
85#define DISPC_GFX_SIZE DISPC_REG(0x008C)
86#define DISPC_GFX_ATTRIBUTES DISPC_REG(0x00A0)
87#define DISPC_GFX_FIFO_THRESHOLD DISPC_REG(0x00A4)
88#define DISPC_GFX_FIFO_SIZE_STATUS DISPC_REG(0x00A8)
89#define DISPC_GFX_ROW_INC DISPC_REG(0x00AC)
90#define DISPC_GFX_PIXEL_INC DISPC_REG(0x00B0)
91#define DISPC_GFX_WINDOW_SKIP DISPC_REG(0x00B4)
92#define DISPC_GFX_TABLE_BA DISPC_REG(0x00B8)
93
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]94#define DISPC_DATA_CYCLE1(ch) DISPC_REG(ch != 2 ? 0x01D4 : 0x03C0)
95#define DISPC_DATA_CYCLE2(ch) DISPC_REG(ch != 2 ? 0x01D8 : 0x03C4)
96#define DISPC_DATA_CYCLE3(ch) DISPC_REG(ch != 2 ? 0x01DC : 0x03C8)
97#define DISPC_CPR_COEF_R(ch) DISPC_REG(ch != 2 ? 0x0220 : 0x03BC)
98#define DISPC_CPR_COEF_G(ch) DISPC_REG(ch != 2 ? 0x0224 : 0x03B8)
99#define DISPC_CPR_COEF_B(ch) DISPC_REG(ch != 2 ? 0x0228 : 0x03B4)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]100
101#define DISPC_GFX_PRELOAD DISPC_REG(0x022C)
102
103/* DISPC Video plane, n = 0 for VID1 and n = 1 for VID2 */
104#define DISPC_VID_REG(n, idx) DISPC_REG(0x00BC + (n)*0x90 + idx)
105
106#define DISPC_VID_BA0(n) DISPC_VID_REG(n, 0x0000)
107#define DISPC_VID_BA1(n) DISPC_VID_REG(n, 0x0004)
108#define DISPC_VID_POSITION(n) DISPC_VID_REG(n, 0x0008)
109#define DISPC_VID_SIZE(n) DISPC_VID_REG(n, 0x000C)
110#define DISPC_VID_ATTRIBUTES(n) DISPC_VID_REG(n, 0x0010)
111#define DISPC_VID_FIFO_THRESHOLD(n) DISPC_VID_REG(n, 0x0014)
112#define DISPC_VID_FIFO_SIZE_STATUS(n) DISPC_VID_REG(n, 0x0018)
113#define DISPC_VID_ROW_INC(n) DISPC_VID_REG(n, 0x001C)
114#define DISPC_VID_PIXEL_INC(n) DISPC_VID_REG(n, 0x0020)
115#define DISPC_VID_FIR(n) DISPC_VID_REG(n, 0x0024)
116#define DISPC_VID_PICTURE_SIZE(n) DISPC_VID_REG(n, 0x0028)
117#define DISPC_VID_ACCU0(n) DISPC_VID_REG(n, 0x002C)
118#define DISPC_VID_ACCU1(n) DISPC_VID_REG(n, 0x0030)
119
120/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
121#define DISPC_VID_FIR_COEF_H(n, i) DISPC_REG(0x00F0 + (n)*0x90 + (i)*0x8)
122/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
123#define DISPC_VID_FIR_COEF_HV(n, i) DISPC_REG(0x00F4 + (n)*0x90 + (i)*0x8)
124/* coef index i = {0, 1, 2, 3, 4} */
125#define DISPC_VID_CONV_COEF(n, i) DISPC_REG(0x0130 + (n)*0x90 + (i)*0x4)
126/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
127#define DISPC_VID_FIR_COEF_V(n, i) DISPC_REG(0x01E0 + (n)*0x20 + (i)*0x4)
128
129#define DISPC_VID_PRELOAD(n) DISPC_REG(0x230 + (n)*0x04)
130
Murthy, Raghuveerce7fa5e2011-03-03 09:27:59 -0600[diff] [blame]131#define DISPC_DIVISOR DISPC_REG(0x0804)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]132
133#define DISPC_IRQ_MASK_ERROR (DISPC_IRQ_GFX_FIFO_UNDERFLOW | \
134 DISPC_IRQ_OCP_ERR | \
135 DISPC_IRQ_VID1_FIFO_UNDERFLOW | \
136 DISPC_IRQ_VID2_FIFO_UNDERFLOW | \
137 DISPC_IRQ_SYNC_LOST | \
138 DISPC_IRQ_SYNC_LOST_DIGIT)
139
140#define DISPC_MAX_NR_ISRS 8
141
142struct omap_dispc_isr_data {
143 omap_dispc_isr_t isr;
144 void *arg;
145 u32 mask;
146};
147
Grazvydas Ignotas66be8f62010-08-24 15:18:43 +0200[diff] [blame]148struct dispc_h_coef {
149 s8 hc4;
150 s8 hc3;
151 u8 hc2;
152 s8 hc1;
153 s8 hc0;
154};
155
156struct dispc_v_coef {
157 s8 vc22;
158 s8 vc2;
159 u8 vc1;
160 s8 vc0;
161 s8 vc00;
162};
163
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]164#define REG_GET(idx, start, end) \
165 FLD_GET(dispc_read_reg(idx), start, end)
166
167#define REG_FLD_MOD(idx, val, start, end) \
168 dispc_write_reg(idx, FLD_MOD(dispc_read_reg(idx), val, start, end))
169
170static const struct dispc_reg dispc_reg_att[] = { DISPC_GFX_ATTRIBUTES,
171 DISPC_VID_ATTRIBUTES(0),
172 DISPC_VID_ATTRIBUTES(1) };
173
Tomi Valkeinendfc0fd82009-12-17 14:35:21 +0200[diff] [blame]174struct dispc_irq_stats {
175 unsigned long last_reset;
176 unsigned irq_count;
177 unsigned irqs[32];
178};
179
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]180static struct {
Senthilvadivu Guruswamy060b6d92011-01-24 06:22:00 +0000[diff] [blame]181 struct platform_device *pdev;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]182 void __iomem *base;
archit tanejaaffe3602011-02-23 08:41:03 +0000[diff] [blame]183 int irq;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]184
185 u32 fifo_size[3];
186
187 spinlock_t irq_lock;
188 u32 irq_error_mask;
189 struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS];
190 u32 error_irqs;
191 struct work_struct error_work;
192
193 u32 ctx[DISPC_SZ_REGS / sizeof(u32)];
Tomi Valkeinendfc0fd82009-12-17 14:35:21 +0200[diff] [blame]194
195#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
196 spinlock_t irq_stats_lock;
197 struct dispc_irq_stats irq_stats;
198#endif
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]199} dispc;
200
201static void _omap_dispc_set_irqs(void);
202
203static inline void dispc_write_reg(const struct dispc_reg idx, u32 val)
204{
205 __raw_writel(val, dispc.base + idx.idx);
206}
207
208static inline u32 dispc_read_reg(const struct dispc_reg idx)
209{
210 return __raw_readl(dispc.base + idx.idx);
211}
212
213#define SR(reg) \
214 dispc.ctx[(DISPC_##reg).idx / sizeof(u32)] = dispc_read_reg(DISPC_##reg)
215#define RR(reg) \
216 dispc_write_reg(DISPC_##reg, dispc.ctx[(DISPC_##reg).idx / sizeof(u32)])
217
218void dispc_save_context(void)
219{
220 if (cpu_is_omap24xx())
221 return;
222
223 SR(SYSCONFIG);
224 SR(IRQENABLE);
225 SR(CONTROL);
226 SR(CONFIG);
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]227 SR(DEFAULT_COLOR(0));
228 SR(DEFAULT_COLOR(1));
229 SR(TRANS_COLOR(0));
230 SR(TRANS_COLOR(1));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]231 SR(LINE_NUMBER);
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]232 SR(TIMING_H(0));
233 SR(TIMING_V(0));
234 SR(POL_FREQ(0));
Murthy, Raghuveerce7fa5e2011-03-03 09:27:59 -0600[diff] [blame]235 SR(DIVISORo(0));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]236 SR(GLOBAL_ALPHA);
237 SR(SIZE_DIG);
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]238 SR(SIZE_LCD(0));
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]239 if (dss_has_feature(FEAT_MGR_LCD2)) {
240 SR(CONTROL2);
241 SR(DEFAULT_COLOR(2));
242 SR(TRANS_COLOR(2));
243 SR(SIZE_LCD(2));
244 SR(TIMING_H(2));
245 SR(TIMING_V(2));
246 SR(POL_FREQ(2));
Murthy, Raghuveerce7fa5e2011-03-03 09:27:59 -0600[diff] [blame]247 SR(DIVISORo(2));
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]248 SR(CONFIG2);
249 }
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]250
251 SR(GFX_BA0);
252 SR(GFX_BA1);
253 SR(GFX_POSITION);
254 SR(GFX_SIZE);
255 SR(GFX_ATTRIBUTES);
256 SR(GFX_FIFO_THRESHOLD);
257 SR(GFX_ROW_INC);
258 SR(GFX_PIXEL_INC);
259 SR(GFX_WINDOW_SKIP);
260 SR(GFX_TABLE_BA);
261
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]262 SR(DATA_CYCLE1(0));
263 SR(DATA_CYCLE2(0));
264 SR(DATA_CYCLE3(0));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]265
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]266 SR(CPR_COEF_R(0));
267 SR(CPR_COEF_G(0));
268 SR(CPR_COEF_B(0));
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]269 if (dss_has_feature(FEAT_MGR_LCD2)) {
270 SR(CPR_COEF_B(2));
271 SR(CPR_COEF_G(2));
272 SR(CPR_COEF_R(2));
273
274 SR(DATA_CYCLE1(2));
275 SR(DATA_CYCLE2(2));
276 SR(DATA_CYCLE3(2));
277 }
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]278
279 SR(GFX_PRELOAD);
280
281 /* VID1 */
282 SR(VID_BA0(0));
283 SR(VID_BA1(0));
284 SR(VID_POSITION(0));
285 SR(VID_SIZE(0));
286 SR(VID_ATTRIBUTES(0));
287 SR(VID_FIFO_THRESHOLD(0));
288 SR(VID_ROW_INC(0));
289 SR(VID_PIXEL_INC(0));
290 SR(VID_FIR(0));
291 SR(VID_PICTURE_SIZE(0));
292 SR(VID_ACCU0(0));
293 SR(VID_ACCU1(0));
294
295 SR(VID_FIR_COEF_H(0, 0));
296 SR(VID_FIR_COEF_H(0, 1));
297 SR(VID_FIR_COEF_H(0, 2));
298 SR(VID_FIR_COEF_H(0, 3));
299 SR(VID_FIR_COEF_H(0, 4));
300 SR(VID_FIR_COEF_H(0, 5));
301 SR(VID_FIR_COEF_H(0, 6));
302 SR(VID_FIR_COEF_H(0, 7));
303
304 SR(VID_FIR_COEF_HV(0, 0));
305 SR(VID_FIR_COEF_HV(0, 1));
306 SR(VID_FIR_COEF_HV(0, 2));
307 SR(VID_FIR_COEF_HV(0, 3));
308 SR(VID_FIR_COEF_HV(0, 4));
309 SR(VID_FIR_COEF_HV(0, 5));
310 SR(VID_FIR_COEF_HV(0, 6));
311 SR(VID_FIR_COEF_HV(0, 7));
312
313 SR(VID_CONV_COEF(0, 0));
314 SR(VID_CONV_COEF(0, 1));
315 SR(VID_CONV_COEF(0, 2));
316 SR(VID_CONV_COEF(0, 3));
317 SR(VID_CONV_COEF(0, 4));
318
319 SR(VID_FIR_COEF_V(0, 0));
320 SR(VID_FIR_COEF_V(0, 1));
321 SR(VID_FIR_COEF_V(0, 2));
322 SR(VID_FIR_COEF_V(0, 3));
323 SR(VID_FIR_COEF_V(0, 4));
324 SR(VID_FIR_COEF_V(0, 5));
325 SR(VID_FIR_COEF_V(0, 6));
326 SR(VID_FIR_COEF_V(0, 7));
327
328 SR(VID_PRELOAD(0));
329
330 /* VID2 */
331 SR(VID_BA0(1));
332 SR(VID_BA1(1));
333 SR(VID_POSITION(1));
334 SR(VID_SIZE(1));
335 SR(VID_ATTRIBUTES(1));
336 SR(VID_FIFO_THRESHOLD(1));
337 SR(VID_ROW_INC(1));
338 SR(VID_PIXEL_INC(1));
339 SR(VID_FIR(1));
340 SR(VID_PICTURE_SIZE(1));
341 SR(VID_ACCU0(1));
342 SR(VID_ACCU1(1));
343
344 SR(VID_FIR_COEF_H(1, 0));
345 SR(VID_FIR_COEF_H(1, 1));
346 SR(VID_FIR_COEF_H(1, 2));
347 SR(VID_FIR_COEF_H(1, 3));
348 SR(VID_FIR_COEF_H(1, 4));
349 SR(VID_FIR_COEF_H(1, 5));
350 SR(VID_FIR_COEF_H(1, 6));
351 SR(VID_FIR_COEF_H(1, 7));
352
353 SR(VID_FIR_COEF_HV(1, 0));
354 SR(VID_FIR_COEF_HV(1, 1));
355 SR(VID_FIR_COEF_HV(1, 2));
356 SR(VID_FIR_COEF_HV(1, 3));
357 SR(VID_FIR_COEF_HV(1, 4));
358 SR(VID_FIR_COEF_HV(1, 5));
359 SR(VID_FIR_COEF_HV(1, 6));
360 SR(VID_FIR_COEF_HV(1, 7));
361
362 SR(VID_CONV_COEF(1, 0));
363 SR(VID_CONV_COEF(1, 1));
364 SR(VID_CONV_COEF(1, 2));
365 SR(VID_CONV_COEF(1, 3));
366 SR(VID_CONV_COEF(1, 4));
367
368 SR(VID_FIR_COEF_V(1, 0));
369 SR(VID_FIR_COEF_V(1, 1));
370 SR(VID_FIR_COEF_V(1, 2));
371 SR(VID_FIR_COEF_V(1, 3));
372 SR(VID_FIR_COEF_V(1, 4));
373 SR(VID_FIR_COEF_V(1, 5));
374 SR(VID_FIR_COEF_V(1, 6));
375 SR(VID_FIR_COEF_V(1, 7));
376
377 SR(VID_PRELOAD(1));
Murthy, Raghuveer0cf35df2011-03-03 09:28:00 -0600[diff] [blame]378
379 if (dss_has_feature(FEAT_CORE_CLK_DIV))
380 SR(DIVISOR);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]381}
382
383void dispc_restore_context(void)
384{
385 RR(SYSCONFIG);
Ville Syrjälä75c7d592010-03-05 01:13:11 +0200[diff] [blame]386 /*RR(IRQENABLE);*/
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]387 /*RR(CONTROL);*/
388 RR(CONFIG);
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]389 RR(DEFAULT_COLOR(0));
390 RR(DEFAULT_COLOR(1));
391 RR(TRANS_COLOR(0));
392 RR(TRANS_COLOR(1));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]393 RR(LINE_NUMBER);
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]394 RR(TIMING_H(0));
395 RR(TIMING_V(0));
396 RR(POL_FREQ(0));
Murthy, Raghuveerce7fa5e2011-03-03 09:27:59 -0600[diff] [blame]397 RR(DIVISORo(0));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]398 RR(GLOBAL_ALPHA);
399 RR(SIZE_DIG);
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]400 RR(SIZE_LCD(0));
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]401 if (dss_has_feature(FEAT_MGR_LCD2)) {
402 RR(DEFAULT_COLOR(2));
403 RR(TRANS_COLOR(2));
404 RR(SIZE_LCD(2));
405 RR(TIMING_H(2));
406 RR(TIMING_V(2));
407 RR(POL_FREQ(2));
Murthy, Raghuveerce7fa5e2011-03-03 09:27:59 -0600[diff] [blame]408 RR(DIVISORo(2));
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]409 RR(CONFIG2);
410 }
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]411
412 RR(GFX_BA0);
413 RR(GFX_BA1);
414 RR(GFX_POSITION);
415 RR(GFX_SIZE);
416 RR(GFX_ATTRIBUTES);
417 RR(GFX_FIFO_THRESHOLD);
418 RR(GFX_ROW_INC);
419 RR(GFX_PIXEL_INC);
420 RR(GFX_WINDOW_SKIP);
421 RR(GFX_TABLE_BA);
422
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]423 RR(DATA_CYCLE1(0));
424 RR(DATA_CYCLE2(0));
425 RR(DATA_CYCLE3(0));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]426
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]427 RR(CPR_COEF_R(0));
428 RR(CPR_COEF_G(0));
429 RR(CPR_COEF_B(0));
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]430 if (dss_has_feature(FEAT_MGR_LCD2)) {
431 RR(DATA_CYCLE1(2));
432 RR(DATA_CYCLE2(2));
433 RR(DATA_CYCLE3(2));
434
435 RR(CPR_COEF_B(2));
436 RR(CPR_COEF_G(2));
437 RR(CPR_COEF_R(2));
438 }
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]439
440 RR(GFX_PRELOAD);
441
442 /* VID1 */
443 RR(VID_BA0(0));
444 RR(VID_BA1(0));
445 RR(VID_POSITION(0));
446 RR(VID_SIZE(0));
447 RR(VID_ATTRIBUTES(0));
448 RR(VID_FIFO_THRESHOLD(0));
449 RR(VID_ROW_INC(0));
450 RR(VID_PIXEL_INC(0));
451 RR(VID_FIR(0));
452 RR(VID_PICTURE_SIZE(0));
453 RR(VID_ACCU0(0));
454 RR(VID_ACCU1(0));
455
456 RR(VID_FIR_COEF_H(0, 0));
457 RR(VID_FIR_COEF_H(0, 1));
458 RR(VID_FIR_COEF_H(0, 2));
459 RR(VID_FIR_COEF_H(0, 3));
460 RR(VID_FIR_COEF_H(0, 4));
461 RR(VID_FIR_COEF_H(0, 5));
462 RR(VID_FIR_COEF_H(0, 6));
463 RR(VID_FIR_COEF_H(0, 7));
464
465 RR(VID_FIR_COEF_HV(0, 0));
466 RR(VID_FIR_COEF_HV(0, 1));
467 RR(VID_FIR_COEF_HV(0, 2));
468 RR(VID_FIR_COEF_HV(0, 3));
469 RR(VID_FIR_COEF_HV(0, 4));
470 RR(VID_FIR_COEF_HV(0, 5));
471 RR(VID_FIR_COEF_HV(0, 6));
472 RR(VID_FIR_COEF_HV(0, 7));
473
474 RR(VID_CONV_COEF(0, 0));
475 RR(VID_CONV_COEF(0, 1));
476 RR(VID_CONV_COEF(0, 2));
477 RR(VID_CONV_COEF(0, 3));
478 RR(VID_CONV_COEF(0, 4));
479
480 RR(VID_FIR_COEF_V(0, 0));
481 RR(VID_FIR_COEF_V(0, 1));
482 RR(VID_FIR_COEF_V(0, 2));
483 RR(VID_FIR_COEF_V(0, 3));
484 RR(VID_FIR_COEF_V(0, 4));
485 RR(VID_FIR_COEF_V(0, 5));
486 RR(VID_FIR_COEF_V(0, 6));
487 RR(VID_FIR_COEF_V(0, 7));
488
489 RR(VID_PRELOAD(0));
490
491 /* VID2 */
492 RR(VID_BA0(1));
493 RR(VID_BA1(1));
494 RR(VID_POSITION(1));
495 RR(VID_SIZE(1));
496 RR(VID_ATTRIBUTES(1));
497 RR(VID_FIFO_THRESHOLD(1));
498 RR(VID_ROW_INC(1));
499 RR(VID_PIXEL_INC(1));
500 RR(VID_FIR(1));
501 RR(VID_PICTURE_SIZE(1));
502 RR(VID_ACCU0(1));
503 RR(VID_ACCU1(1));
504
505 RR(VID_FIR_COEF_H(1, 0));
506 RR(VID_FIR_COEF_H(1, 1));
507 RR(VID_FIR_COEF_H(1, 2));
508 RR(VID_FIR_COEF_H(1, 3));
509 RR(VID_FIR_COEF_H(1, 4));
510 RR(VID_FIR_COEF_H(1, 5));
511 RR(VID_FIR_COEF_H(1, 6));
512 RR(VID_FIR_COEF_H(1, 7));
513
514 RR(VID_FIR_COEF_HV(1, 0));
515 RR(VID_FIR_COEF_HV(1, 1));
516 RR(VID_FIR_COEF_HV(1, 2));
517 RR(VID_FIR_COEF_HV(1, 3));
518 RR(VID_FIR_COEF_HV(1, 4));
519 RR(VID_FIR_COEF_HV(1, 5));
520 RR(VID_FIR_COEF_HV(1, 6));
521 RR(VID_FIR_COEF_HV(1, 7));
522
523 RR(VID_CONV_COEF(1, 0));
524 RR(VID_CONV_COEF(1, 1));
525 RR(VID_CONV_COEF(1, 2));
526 RR(VID_CONV_COEF(1, 3));
527 RR(VID_CONV_COEF(1, 4));
528
529 RR(VID_FIR_COEF_V(1, 0));
530 RR(VID_FIR_COEF_V(1, 1));
531 RR(VID_FIR_COEF_V(1, 2));
532 RR(VID_FIR_COEF_V(1, 3));
533 RR(VID_FIR_COEF_V(1, 4));
534 RR(VID_FIR_COEF_V(1, 5));
535 RR(VID_FIR_COEF_V(1, 6));
536 RR(VID_FIR_COEF_V(1, 7));
537
538 RR(VID_PRELOAD(1));
539
Murthy, Raghuveer0cf35df2011-03-03 09:28:00 -0600[diff] [blame]540 if (dss_has_feature(FEAT_CORE_CLK_DIV))
541 RR(DIVISOR);
542
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]543 /* enable last, because LCD & DIGIT enable are here */
544 RR(CONTROL);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]545 if (dss_has_feature(FEAT_MGR_LCD2))
546 RR(CONTROL2);
Ville Syrjälä75c7d592010-03-05 01:13:11 +0200[diff] [blame]547 /* clear spurious SYNC_LOST_DIGIT interrupts */
548 dispc_write_reg(DISPC_IRQSTATUS, DISPC_IRQ_SYNC_LOST_DIGIT);
549
550 /*
551 * enable last so IRQs won't trigger before
552 * the context is fully restored
553 */
554 RR(IRQENABLE);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]555}
556
557#undef SR
558#undef RR
559
560static inline void enable_clocks(bool enable)
561{
562 if (enable)
Archit Taneja6af9cd12011-01-31 16:27:44 +0000[diff] [blame]563 dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]564 else
Archit Taneja6af9cd12011-01-31 16:27:44 +0000[diff] [blame]565 dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]566}
567
568bool dispc_go_busy(enum omap_channel channel)
569{
570 int bit;
571
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]572 if (channel == OMAP_DSS_CHANNEL_LCD ||
573 channel == OMAP_DSS_CHANNEL_LCD2)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]574 bit = 5; /* GOLCD */
575 else
576 bit = 6; /* GODIGIT */
577
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]578 if (channel == OMAP_DSS_CHANNEL_LCD2)
579 return REG_GET(DISPC_CONTROL2, bit, bit) == 1;
580 else
581 return REG_GET(DISPC_CONTROL, bit, bit) == 1;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]582}
583
584void dispc_go(enum omap_channel channel)
585{
586 int bit;
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]587 bool enable_bit, go_bit;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]588
589 enable_clocks(1);
590
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]591 if (channel == OMAP_DSS_CHANNEL_LCD ||
592 channel == OMAP_DSS_CHANNEL_LCD2)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]593 bit = 0; /* LCDENABLE */
594 else
595 bit = 1; /* DIGITALENABLE */
596
597 /* if the channel is not enabled, we don't need GO */
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]598 if (channel == OMAP_DSS_CHANNEL_LCD2)
599 enable_bit = REG_GET(DISPC_CONTROL2, bit, bit) == 1;
600 else
601 enable_bit = REG_GET(DISPC_CONTROL, bit, bit) == 1;
602
603 if (!enable_bit)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]604 goto end;
605
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]606 if (channel == OMAP_DSS_CHANNEL_LCD ||
607 channel == OMAP_DSS_CHANNEL_LCD2)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]608 bit = 5; /* GOLCD */
609 else
610 bit = 6; /* GODIGIT */
611
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]612 if (channel == OMAP_DSS_CHANNEL_LCD2)
613 go_bit = REG_GET(DISPC_CONTROL2, bit, bit) == 1;
614 else
615 go_bit = REG_GET(DISPC_CONTROL, bit, bit) == 1;
616
617 if (go_bit) {
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]618 DSSERR("GO bit not down for channel %d\n", channel);
619 goto end;
620 }
621
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]622 DSSDBG("GO %s\n", channel == OMAP_DSS_CHANNEL_LCD ? "LCD" :
623 (channel == OMAP_DSS_CHANNEL_LCD2 ? "LCD2" : "DIGIT"));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]624
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]625 if (channel == OMAP_DSS_CHANNEL_LCD2)
626 REG_FLD_MOD(DISPC_CONTROL2, 1, bit, bit);
627 else
628 REG_FLD_MOD(DISPC_CONTROL, 1, bit, bit);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]629end:
630 enable_clocks(0);
631}
632
633static void _dispc_write_firh_reg(enum omap_plane plane, int reg, u32 value)
634{
635 BUG_ON(plane == OMAP_DSS_GFX);
636
637 dispc_write_reg(DISPC_VID_FIR_COEF_H(plane-1, reg), value);
638}
639
640static void _dispc_write_firhv_reg(enum omap_plane plane, int reg, u32 value)
641{
642 BUG_ON(plane == OMAP_DSS_GFX);
643
644 dispc_write_reg(DISPC_VID_FIR_COEF_HV(plane-1, reg), value);
645}
646
647static void _dispc_write_firv_reg(enum omap_plane plane, int reg, u32 value)
648{
649 BUG_ON(plane == OMAP_DSS_GFX);
650
651 dispc_write_reg(DISPC_VID_FIR_COEF_V(plane-1, reg), value);
652}
653
654static void _dispc_set_scale_coef(enum omap_plane plane, int hscaleup,
655 int vscaleup, int five_taps)
656{
657 /* Coefficients for horizontal up-sampling */
Grazvydas Ignotas66be8f62010-08-24 15:18:43 +0200[diff] [blame]658 static const struct dispc_h_coef coef_hup[8] = {
659 { 0, 0, 128, 0, 0 },
660 { -1, 13, 124, -8, 0 },
661 { -2, 30, 112, -11, -1 },
662 { -5, 51, 95, -11, -2 },
663 { 0, -9, 73, 73, -9 },
664 { -2, -11, 95, 51, -5 },
665 { -1, -11, 112, 30, -2 },
666 { 0, -8, 124, 13, -1 },
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]667 };
668
669 /* Coefficients for vertical up-sampling */
Grazvydas Ignotas66be8f62010-08-24 15:18:43 +0200[diff] [blame]670 static const struct dispc_v_coef coef_vup_3tap[8] = {
671 { 0, 0, 128, 0, 0 },
672 { 0, 3, 123, 2, 0 },
673 { 0, 12, 111, 5, 0 },
674 { 0, 32, 89, 7, 0 },
675 { 0, 0, 64, 64, 0 },
676 { 0, 7, 89, 32, 0 },
677 { 0, 5, 111, 12, 0 },
678 { 0, 2, 123, 3, 0 },
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]679 };
680
Grazvydas Ignotas66be8f62010-08-24 15:18:43 +0200[diff] [blame]681 static const struct dispc_v_coef coef_vup_5tap[8] = {
682 { 0, 0, 128, 0, 0 },
683 { -1, 13, 124, -8, 0 },
684 { -2, 30, 112, -11, -1 },
685 { -5, 51, 95, -11, -2 },
686 { 0, -9, 73, 73, -9 },
687 { -2, -11, 95, 51, -5 },
688 { -1, -11, 112, 30, -2 },
689 { 0, -8, 124, 13, -1 },
690 };
691
692 /* Coefficients for horizontal down-sampling */
693 static const struct dispc_h_coef coef_hdown[8] = {
694 { 0, 36, 56, 36, 0 },
695 { 4, 40, 55, 31, -2 },
696 { 8, 44, 54, 27, -5 },
697 { 12, 48, 53, 22, -7 },
698 { -9, 17, 52, 51, 17 },
699 { -7, 22, 53, 48, 12 },
700 { -5, 27, 54, 44, 8 },
701 { -2, 31, 55, 40, 4 },
702 };
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]703
704 /* Coefficients for vertical down-sampling */
Grazvydas Ignotas66be8f62010-08-24 15:18:43 +0200[diff] [blame]705 static const struct dispc_v_coef coef_vdown_3tap[8] = {
706 { 0, 36, 56, 36, 0 },
707 { 0, 40, 57, 31, 0 },
708 { 0, 45, 56, 27, 0 },
709 { 0, 50, 55, 23, 0 },
710 { 0, 18, 55, 55, 0 },
711 { 0, 23, 55, 50, 0 },
712 { 0, 27, 56, 45, 0 },
713 { 0, 31, 57, 40, 0 },
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]714 };
715
Grazvydas Ignotas66be8f62010-08-24 15:18:43 +0200[diff] [blame]716 static const struct dispc_v_coef coef_vdown_5tap[8] = {
717 { 0, 36, 56, 36, 0 },
718 { 4, 40, 55, 31, -2 },
719 { 8, 44, 54, 27, -5 },
720 { 12, 48, 53, 22, -7 },
721 { -9, 17, 52, 51, 17 },
722 { -7, 22, 53, 48, 12 },
723 { -5, 27, 54, 44, 8 },
724 { -2, 31, 55, 40, 4 },
725 };
726
727 const struct dispc_h_coef *h_coef;
728 const struct dispc_v_coef *v_coef;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]729 int i;
730
731 if (hscaleup)
732 h_coef = coef_hup;
733 else
734 h_coef = coef_hdown;
735
Grazvydas Ignotas66be8f62010-08-24 15:18:43 +0200[diff] [blame]736 if (vscaleup)
737 v_coef = five_taps ? coef_vup_5tap : coef_vup_3tap;
738 else
739 v_coef = five_taps ? coef_vdown_5tap : coef_vdown_3tap;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]740
741 for (i = 0; i < 8; i++) {
742 u32 h, hv;
743
Grazvydas Ignotas66be8f62010-08-24 15:18:43 +0200[diff] [blame]744 h = FLD_VAL(h_coef[i].hc0, 7, 0)
745 | FLD_VAL(h_coef[i].hc1, 15, 8)
746 | FLD_VAL(h_coef[i].hc2, 23, 16)
747 | FLD_VAL(h_coef[i].hc3, 31, 24);
748 hv = FLD_VAL(h_coef[i].hc4, 7, 0)
749 | FLD_VAL(v_coef[i].vc0, 15, 8)
750 | FLD_VAL(v_coef[i].vc1, 23, 16)
751 | FLD_VAL(v_coef[i].vc2, 31, 24);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]752
753 _dispc_write_firh_reg(plane, i, h);
754 _dispc_write_firhv_reg(plane, i, hv);
755 }
756
Grazvydas Ignotas66be8f62010-08-24 15:18:43 +0200[diff] [blame]757 if (five_taps) {
758 for (i = 0; i < 8; i++) {
759 u32 v;
760 v = FLD_VAL(v_coef[i].vc00, 7, 0)
761 | FLD_VAL(v_coef[i].vc22, 15, 8);
762 _dispc_write_firv_reg(plane, i, v);
763 }
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]764 }
765}
766
767static void _dispc_setup_color_conv_coef(void)
768{
769 const struct color_conv_coef {
770 int ry, rcr, rcb, gy, gcr, gcb, by, bcr, bcb;
771 int full_range;
772 } ctbl_bt601_5 = {
773 298, 409, 0, 298, -208, -100, 298, 0, 517, 0,
774 };
775
776 const struct color_conv_coef *ct;
777
778#define CVAL(x, y) (FLD_VAL(x, 26, 16) | FLD_VAL(y, 10, 0))
779
780 ct = &ctbl_bt601_5;
781
782 dispc_write_reg(DISPC_VID_CONV_COEF(0, 0), CVAL(ct->rcr, ct->ry));
783 dispc_write_reg(DISPC_VID_CONV_COEF(0, 1), CVAL(ct->gy, ct->rcb));
784 dispc_write_reg(DISPC_VID_CONV_COEF(0, 2), CVAL(ct->gcb, ct->gcr));
785 dispc_write_reg(DISPC_VID_CONV_COEF(0, 3), CVAL(ct->bcr, ct->by));
786 dispc_write_reg(DISPC_VID_CONV_COEF(0, 4), CVAL(0, ct->bcb));
787
788 dispc_write_reg(DISPC_VID_CONV_COEF(1, 0), CVAL(ct->rcr, ct->ry));
789 dispc_write_reg(DISPC_VID_CONV_COEF(1, 1), CVAL(ct->gy, ct->rcb));
790 dispc_write_reg(DISPC_VID_CONV_COEF(1, 2), CVAL(ct->gcb, ct->gcr));
791 dispc_write_reg(DISPC_VID_CONV_COEF(1, 3), CVAL(ct->bcr, ct->by));
792 dispc_write_reg(DISPC_VID_CONV_COEF(1, 4), CVAL(0, ct->bcb));
793
794#undef CVAL
795
796 REG_FLD_MOD(DISPC_VID_ATTRIBUTES(0), ct->full_range, 11, 11);
797 REG_FLD_MOD(DISPC_VID_ATTRIBUTES(1), ct->full_range, 11, 11);
798}
799
800
801static void _dispc_set_plane_ba0(enum omap_plane plane, u32 paddr)
802{
803 const struct dispc_reg ba0_reg[] = { DISPC_GFX_BA0,
804 DISPC_VID_BA0(0),
805 DISPC_VID_BA0(1) };
806
807 dispc_write_reg(ba0_reg[plane], paddr);
808}
809
810static void _dispc_set_plane_ba1(enum omap_plane plane, u32 paddr)
811{
812 const struct dispc_reg ba1_reg[] = { DISPC_GFX_BA1,
813 DISPC_VID_BA1(0),
814 DISPC_VID_BA1(1) };
815
816 dispc_write_reg(ba1_reg[plane], paddr);
817}
818
819static void _dispc_set_plane_pos(enum omap_plane plane, int x, int y)
820{
821 const struct dispc_reg pos_reg[] = { DISPC_GFX_POSITION,
822 DISPC_VID_POSITION(0),
823 DISPC_VID_POSITION(1) };
824
825 u32 val = FLD_VAL(y, 26, 16) | FLD_VAL(x, 10, 0);
826 dispc_write_reg(pos_reg[plane], val);
827}
828
829static void _dispc_set_pic_size(enum omap_plane plane, int width, int height)
830{
831 const struct dispc_reg siz_reg[] = { DISPC_GFX_SIZE,
832 DISPC_VID_PICTURE_SIZE(0),
833 DISPC_VID_PICTURE_SIZE(1) };
834 u32 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
835 dispc_write_reg(siz_reg[plane], val);
836}
837
838static void _dispc_set_vid_size(enum omap_plane plane, int width, int height)
839{
840 u32 val;
841 const struct dispc_reg vsi_reg[] = { DISPC_VID_SIZE(0),
842 DISPC_VID_SIZE(1) };
843
844 BUG_ON(plane == OMAP_DSS_GFX);
845
846 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
847 dispc_write_reg(vsi_reg[plane-1], val);
848}
849
Rajkumar Nfd28a392010-11-04 12:28:42 +0100[diff] [blame]850static void _dispc_set_pre_mult_alpha(enum omap_plane plane, bool enable)
851{
852 if (!dss_has_feature(FEAT_PRE_MULT_ALPHA))
853 return;
854
855 if (!dss_has_feature(FEAT_GLOBAL_ALPHA_VID1) &&
856 plane == OMAP_DSS_VIDEO1)
857 return;
858
859 REG_FLD_MOD(dispc_reg_att[plane], enable ? 1 : 0, 28, 28);
860}
861
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]862static void _dispc_setup_global_alpha(enum omap_plane plane, u8 global_alpha)
863{
Archit Tanejaa0acb552010-09-15 19:20:00 +0530[diff] [blame]864 if (!dss_has_feature(FEAT_GLOBAL_ALPHA))
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]865 return;
866
Rajkumar Nfd28a392010-11-04 12:28:42 +0100[diff] [blame]867 if (!dss_has_feature(FEAT_GLOBAL_ALPHA_VID1) &&
868 plane == OMAP_DSS_VIDEO1)
869 return;
Archit Tanejaa0acb552010-09-15 19:20:00 +0530[diff] [blame]870
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]871 if (plane == OMAP_DSS_GFX)
872 REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 7, 0);
873 else if (plane == OMAP_DSS_VIDEO2)
874 REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 23, 16);
875}
876
877static void _dispc_set_pix_inc(enum omap_plane plane, s32 inc)
878{
879 const struct dispc_reg ri_reg[] = { DISPC_GFX_PIXEL_INC,
880 DISPC_VID_PIXEL_INC(0),
881 DISPC_VID_PIXEL_INC(1) };
882
883 dispc_write_reg(ri_reg[plane], inc);
884}
885
886static void _dispc_set_row_inc(enum omap_plane plane, s32 inc)
887{
888 const struct dispc_reg ri_reg[] = { DISPC_GFX_ROW_INC,
889 DISPC_VID_ROW_INC(0),
890 DISPC_VID_ROW_INC(1) };
891
892 dispc_write_reg(ri_reg[plane], inc);
893}
894
895static void _dispc_set_color_mode(enum omap_plane plane,
896 enum omap_color_mode color_mode)
897{
898 u32 m = 0;
899
900 switch (color_mode) {
901 case OMAP_DSS_COLOR_CLUT1:
902 m = 0x0; break;
903 case OMAP_DSS_COLOR_CLUT2:
904 m = 0x1; break;
905 case OMAP_DSS_COLOR_CLUT4:
906 m = 0x2; break;
907 case OMAP_DSS_COLOR_CLUT8:
908 m = 0x3; break;
909 case OMAP_DSS_COLOR_RGB12U:
910 m = 0x4; break;
911 case OMAP_DSS_COLOR_ARGB16:
912 m = 0x5; break;
913 case OMAP_DSS_COLOR_RGB16:
914 m = 0x6; break;
915 case OMAP_DSS_COLOR_RGB24U:
916 m = 0x8; break;
917 case OMAP_DSS_COLOR_RGB24P:
918 m = 0x9; break;
919 case OMAP_DSS_COLOR_YUV2:
920 m = 0xa; break;
921 case OMAP_DSS_COLOR_UYVY:
922 m = 0xb; break;
923 case OMAP_DSS_COLOR_ARGB32:
924 m = 0xc; break;
925 case OMAP_DSS_COLOR_RGBA32:
926 m = 0xd; break;
927 case OMAP_DSS_COLOR_RGBX32:
928 m = 0xe; break;
929 default:
930 BUG(); break;
931 }
932
933 REG_FLD_MOD(dispc_reg_att[plane], m, 4, 1);
934}
935
936static void _dispc_set_channel_out(enum omap_plane plane,
937 enum omap_channel channel)
938{
939 int shift;
940 u32 val;
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]941 int chan = 0, chan2 = 0;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]942
943 switch (plane) {
944 case OMAP_DSS_GFX:
945 shift = 8;
946 break;
947 case OMAP_DSS_VIDEO1:
948 case OMAP_DSS_VIDEO2:
949 shift = 16;
950 break;
951 default:
952 BUG();
953 return;
954 }
955
956 val = dispc_read_reg(dispc_reg_att[plane]);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]957 if (dss_has_feature(FEAT_MGR_LCD2)) {
958 switch (channel) {
959 case OMAP_DSS_CHANNEL_LCD:
960 chan = 0;
961 chan2 = 0;
962 break;
963 case OMAP_DSS_CHANNEL_DIGIT:
964 chan = 1;
965 chan2 = 0;
966 break;
967 case OMAP_DSS_CHANNEL_LCD2:
968 chan = 0;
969 chan2 = 1;
970 break;
971 default:
972 BUG();
973 }
974
975 val = FLD_MOD(val, chan, shift, shift);
976 val = FLD_MOD(val, chan2, 31, 30);
977 } else {
978 val = FLD_MOD(val, channel, shift, shift);
979 }
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]980 dispc_write_reg(dispc_reg_att[plane], val);
981}
982
983void dispc_set_burst_size(enum omap_plane plane,
984 enum omap_burst_size burst_size)
985{
986 int shift;
987 u32 val;
988
989 enable_clocks(1);
990
991 switch (plane) {
992 case OMAP_DSS_GFX:
993 shift = 6;
994 break;
995 case OMAP_DSS_VIDEO1:
996 case OMAP_DSS_VIDEO2:
997 shift = 14;
998 break;
999 default:
1000 BUG();
1001 return;
1002 }
1003
1004 val = dispc_read_reg(dispc_reg_att[plane]);
1005 val = FLD_MOD(val, burst_size, shift+1, shift);
1006 dispc_write_reg(dispc_reg_att[plane], val);
1007
1008 enable_clocks(0);
1009}
1010
Mythri P Kd3862612011-03-11 18:02:49 +0530[diff] [blame]1011void dispc_enable_gamma_table(bool enable)
1012{
1013 /*
1014 * This is partially implemented to support only disabling of
1015 * the gamma table.
1016 */
1017 if (enable) {
1018 DSSWARN("Gamma table enabling for TV not yet supported");
1019 return;
1020 }
1021
1022 REG_FLD_MOD(DISPC_CONFIG, enable, 9, 9);
1023}
1024
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1025static void _dispc_set_vid_color_conv(enum omap_plane plane, bool enable)
1026{
1027 u32 val;
1028
1029 BUG_ON(plane == OMAP_DSS_GFX);
1030
1031 val = dispc_read_reg(dispc_reg_att[plane]);
1032 val = FLD_MOD(val, enable, 9, 9);
1033 dispc_write_reg(dispc_reg_att[plane], val);
1034}
1035
1036void dispc_enable_replication(enum omap_plane plane, bool enable)
1037{
1038 int bit;
1039
1040 if (plane == OMAP_DSS_GFX)
1041 bit = 5;
1042 else
1043 bit = 10;
1044
1045 enable_clocks(1);
1046 REG_FLD_MOD(dispc_reg_att[plane], enable, bit, bit);
1047 enable_clocks(0);
1048}
1049
Sumit Semwal64ba4f72010-12-02 11:27:10 +0000[diff] [blame]1050void dispc_set_lcd_size(enum omap_channel channel, u16 width, u16 height)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1051{
1052 u32 val;
1053 BUG_ON((width > (1 << 11)) || (height > (1 << 11)));
1054 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
1055 enable_clocks(1);
Sumit Semwal64ba4f72010-12-02 11:27:10 +0000[diff] [blame]1056 dispc_write_reg(DISPC_SIZE_LCD(channel), val);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1057 enable_clocks(0);
1058}
1059
1060void dispc_set_digit_size(u16 width, u16 height)
1061{
1062 u32 val;
1063 BUG_ON((width > (1 << 11)) || (height > (1 << 11)));
1064 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
1065 enable_clocks(1);
1066 dispc_write_reg(DISPC_SIZE_DIG, val);
1067 enable_clocks(0);
1068}
1069
1070static void dispc_read_plane_fifo_sizes(void)
1071{
1072 const struct dispc_reg fsz_reg[] = { DISPC_GFX_FIFO_SIZE_STATUS,
1073 DISPC_VID_FIFO_SIZE_STATUS(0),
1074 DISPC_VID_FIFO_SIZE_STATUS(1) };
1075 u32 size;
1076 int plane;
Archit Tanejaa0acb552010-09-15 19:20:00 +0530[diff] [blame]1077 u8 start, end;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1078
1079 enable_clocks(1);
1080
Archit Tanejaa0acb552010-09-15 19:20:00 +0530[diff] [blame]1081 dss_feat_get_reg_field(FEAT_REG_FIFOSIZE, &start, &end);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1082
Archit Tanejaa0acb552010-09-15 19:20:00 +0530[diff] [blame]1083 for (plane = 0; plane < ARRAY_SIZE(dispc.fifo_size); ++plane) {
1084 size = FLD_GET(dispc_read_reg(fsz_reg[plane]), start, end);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1085 dispc.fifo_size[plane] = size;
1086 }
1087
1088 enable_clocks(0);
1089}
1090
1091u32 dispc_get_plane_fifo_size(enum omap_plane plane)
1092{
1093 return dispc.fifo_size[plane];
1094}
1095
1096void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high)
1097{
1098 const struct dispc_reg ftrs_reg[] = { DISPC_GFX_FIFO_THRESHOLD,
1099 DISPC_VID_FIFO_THRESHOLD(0),
1100 DISPC_VID_FIFO_THRESHOLD(1) };
Archit Tanejaa0acb552010-09-15 19:20:00 +0530[diff] [blame]1101 u8 hi_start, hi_end, lo_start, lo_end;
1102
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1103 enable_clocks(1);
1104
1105 DSSDBG("fifo(%d) low/high old %u/%u, new %u/%u\n",
1106 plane,
1107 REG_GET(ftrs_reg[plane], 11, 0),
1108 REG_GET(ftrs_reg[plane], 27, 16),
1109 low, high);
1110
Archit Tanejaa0acb552010-09-15 19:20:00 +0530[diff] [blame]1111 dss_feat_get_reg_field(FEAT_REG_FIFOHIGHTHRESHOLD, &hi_start, &hi_end);
1112 dss_feat_get_reg_field(FEAT_REG_FIFOLOWTHRESHOLD, &lo_start, &lo_end);
1113
1114 dispc_write_reg(ftrs_reg[plane],
1115 FLD_VAL(high, hi_start, hi_end) |
1116 FLD_VAL(low, lo_start, lo_end));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1117
1118 enable_clocks(0);
1119}
1120
1121void dispc_enable_fifomerge(bool enable)
1122{
1123 enable_clocks(1);
1124
1125 DSSDBG("FIFO merge %s\n", enable ? "enabled" : "disabled");
1126 REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 14, 14);
1127
1128 enable_clocks(0);
1129}
1130
1131static void _dispc_set_fir(enum omap_plane plane, int hinc, int vinc)
1132{
1133 u32 val;
1134 const struct dispc_reg fir_reg[] = { DISPC_VID_FIR(0),
1135 DISPC_VID_FIR(1) };
Archit Tanejaa0acb552010-09-15 19:20:00 +0530[diff] [blame]1136 u8 hinc_start, hinc_end, vinc_start, vinc_end;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1137
1138 BUG_ON(plane == OMAP_DSS_GFX);
1139
Archit Tanejaa0acb552010-09-15 19:20:00 +0530[diff] [blame]1140 dss_feat_get_reg_field(FEAT_REG_FIRHINC, &hinc_start, &hinc_end);
1141 dss_feat_get_reg_field(FEAT_REG_FIRVINC, &vinc_start, &vinc_end);
1142
1143 val = FLD_VAL(vinc, vinc_start, vinc_end) |
1144 FLD_VAL(hinc, hinc_start, hinc_end);
1145
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1146 dispc_write_reg(fir_reg[plane-1], val);
1147}
1148
1149static void _dispc_set_vid_accu0(enum omap_plane plane, int haccu, int vaccu)
1150{
1151 u32 val;
1152 const struct dispc_reg ac0_reg[] = { DISPC_VID_ACCU0(0),
1153 DISPC_VID_ACCU0(1) };
Archit Taneja87a74842011-03-02 11:19:50 +0530[diff] [blame]1154 u8 hor_start, hor_end, vert_start, vert_end;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1155
1156 BUG_ON(plane == OMAP_DSS_GFX);
1157
Archit Taneja87a74842011-03-02 11:19:50 +0530[diff] [blame]1158 dss_feat_get_reg_field(FEAT_REG_HORIZONTALACCU, &hor_start, &hor_end);
1159 dss_feat_get_reg_field(FEAT_REG_VERTICALACCU, &vert_start, &vert_end);
1160
1161 val = FLD_VAL(vaccu, vert_start, vert_end) |
1162 FLD_VAL(haccu, hor_start, hor_end);
1163
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1164 dispc_write_reg(ac0_reg[plane-1], val);
1165}
1166
1167static void _dispc_set_vid_accu1(enum omap_plane plane, int haccu, int vaccu)
1168{
1169 u32 val;
1170 const struct dispc_reg ac1_reg[] = { DISPC_VID_ACCU1(0),
1171 DISPC_VID_ACCU1(1) };
Archit Taneja87a74842011-03-02 11:19:50 +0530[diff] [blame]1172 u8 hor_start, hor_end, vert_start, vert_end;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1173
1174 BUG_ON(plane == OMAP_DSS_GFX);
1175
Archit Taneja87a74842011-03-02 11:19:50 +0530[diff] [blame]1176 dss_feat_get_reg_field(FEAT_REG_HORIZONTALACCU, &hor_start, &hor_end);
1177 dss_feat_get_reg_field(FEAT_REG_VERTICALACCU, &vert_start, &vert_end);
1178
1179 val = FLD_VAL(vaccu, vert_start, vert_end) |
1180 FLD_VAL(haccu, hor_start, hor_end);
1181
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1182 dispc_write_reg(ac1_reg[plane-1], val);
1183}
1184
1185
1186static void _dispc_set_scaling(enum omap_plane plane,
1187 u16 orig_width, u16 orig_height,
1188 u16 out_width, u16 out_height,
1189 bool ilace, bool five_taps,
1190 bool fieldmode)
1191{
1192 int fir_hinc;
1193 int fir_vinc;
1194 int hscaleup, vscaleup;
1195 int accu0 = 0;
1196 int accu1 = 0;
1197 u32 l;
1198
1199 BUG_ON(plane == OMAP_DSS_GFX);
1200
1201 hscaleup = orig_width <= out_width;
1202 vscaleup = orig_height <= out_height;
1203
1204 _dispc_set_scale_coef(plane, hscaleup, vscaleup, five_taps);
1205
1206 if (!orig_width || orig_width == out_width)
1207 fir_hinc = 0;
1208 else
1209 fir_hinc = 1024 * orig_width / out_width;
1210
1211 if (!orig_height || orig_height == out_height)
1212 fir_vinc = 0;
1213 else
1214 fir_vinc = 1024 * orig_height / out_height;
1215
1216 _dispc_set_fir(plane, fir_hinc, fir_vinc);
1217
1218 l = dispc_read_reg(dispc_reg_att[plane]);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1219
Archit Taneja87a74842011-03-02 11:19:50 +0530[diff] [blame]1220 /* RESIZEENABLE and VERTICALTAPS */
1221 l &= ~((0x3 << 5) | (0x1 << 21));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1222 l |= fir_hinc ? (1 << 5) : 0;
1223 l |= fir_vinc ? (1 << 6) : 0;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1224 l |= five_taps ? (1 << 21) : 0;
Archit Taneja87a74842011-03-02 11:19:50 +0530[diff] [blame]1225
1226 /* VRESIZECONF and HRESIZECONF */
1227 if (dss_has_feature(FEAT_RESIZECONF)) {
1228 l &= ~(0x3 << 7);
1229 l |= hscaleup ? 0 : (1 << 7);
1230 l |= vscaleup ? 0 : (1 << 8);
1231 }
1232
1233 /* LINEBUFFERSPLIT */
1234 if (dss_has_feature(FEAT_LINEBUFFERSPLIT)) {
1235 l &= ~(0x1 << 22);
1236 l |= five_taps ? (1 << 22) : 0;
1237 }
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1238
1239 dispc_write_reg(dispc_reg_att[plane], l);
1240
1241 /*
1242 * field 0 = even field = bottom field
1243 * field 1 = odd field = top field
1244 */
1245 if (ilace && !fieldmode) {
1246 accu1 = 0;
1247 accu0 = (fir_vinc / 2) & 0x3ff;
1248 if (accu0 >= 1024/2) {
1249 accu1 = 1024/2;
1250 accu0 -= accu1;
1251 }
1252 }
1253
1254 _dispc_set_vid_accu0(plane, 0, accu0);
1255 _dispc_set_vid_accu1(plane, 0, accu1);
1256}
1257
1258static void _dispc_set_rotation_attrs(enum omap_plane plane, u8 rotation,
1259 bool mirroring, enum omap_color_mode color_mode)
1260{
Archit Taneja87a74842011-03-02 11:19:50 +0530[diff] [blame]1261 bool row_repeat = false;
1262 int vidrot = 0;
1263
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1264 if (color_mode == OMAP_DSS_COLOR_YUV2 ||
1265 color_mode == OMAP_DSS_COLOR_UYVY) {
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1266
1267 if (mirroring) {
1268 switch (rotation) {
1269 case OMAP_DSS_ROT_0:
1270 vidrot = 2;
1271 break;
1272 case OMAP_DSS_ROT_90:
1273 vidrot = 1;
1274 break;
1275 case OMAP_DSS_ROT_180:
1276 vidrot = 0;
1277 break;
1278 case OMAP_DSS_ROT_270:
1279 vidrot = 3;
1280 break;
1281 }
1282 } else {
1283 switch (rotation) {
1284 case OMAP_DSS_ROT_0:
1285 vidrot = 0;
1286 break;
1287 case OMAP_DSS_ROT_90:
1288 vidrot = 1;
1289 break;
1290 case OMAP_DSS_ROT_180:
1291 vidrot = 2;
1292 break;
1293 case OMAP_DSS_ROT_270:
1294 vidrot = 3;
1295 break;
1296 }
1297 }
1298
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1299 if (rotation == OMAP_DSS_ROT_90 || rotation == OMAP_DSS_ROT_270)
Archit Taneja87a74842011-03-02 11:19:50 +0530[diff] [blame]1300 row_repeat = true;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1301 else
Archit Taneja87a74842011-03-02 11:19:50 +0530[diff] [blame]1302 row_repeat = false;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1303 }
Archit Taneja87a74842011-03-02 11:19:50 +0530[diff] [blame]1304
1305 REG_FLD_MOD(dispc_reg_att[plane], vidrot, 13, 12);
1306 if (dss_has_feature(FEAT_ROWREPEATENABLE))
1307 REG_FLD_MOD(dispc_reg_att[plane], row_repeat ? 1 : 0, 18, 18);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1308}
1309
1310static int color_mode_to_bpp(enum omap_color_mode color_mode)
1311{
1312 switch (color_mode) {
1313 case OMAP_DSS_COLOR_CLUT1:
1314 return 1;
1315 case OMAP_DSS_COLOR_CLUT2:
1316 return 2;
1317 case OMAP_DSS_COLOR_CLUT4:
1318 return 4;
1319 case OMAP_DSS_COLOR_CLUT8:
1320 return 8;
1321 case OMAP_DSS_COLOR_RGB12U:
1322 case OMAP_DSS_COLOR_RGB16:
1323 case OMAP_DSS_COLOR_ARGB16:
1324 case OMAP_DSS_COLOR_YUV2:
1325 case OMAP_DSS_COLOR_UYVY:
1326 return 16;
1327 case OMAP_DSS_COLOR_RGB24P:
1328 return 24;
1329 case OMAP_DSS_COLOR_RGB24U:
1330 case OMAP_DSS_COLOR_ARGB32:
1331 case OMAP_DSS_COLOR_RGBA32:
1332 case OMAP_DSS_COLOR_RGBX32:
1333 return 32;
1334 default:
1335 BUG();
1336 }
1337}
1338
1339static s32 pixinc(int pixels, u8 ps)
1340{
1341 if (pixels == 1)
1342 return 1;
1343 else if (pixels > 1)
1344 return 1 + (pixels - 1) * ps;
1345 else if (pixels < 0)
1346 return 1 - (-pixels + 1) * ps;
1347 else
1348 BUG();
1349}
1350
1351static void calc_vrfb_rotation_offset(u8 rotation, bool mirror,
1352 u16 screen_width,
1353 u16 width, u16 height,
1354 enum omap_color_mode color_mode, bool fieldmode,
1355 unsigned int field_offset,
1356 unsigned *offset0, unsigned *offset1,
1357 s32 *row_inc, s32 *pix_inc)
1358{
1359 u8 ps;
1360
1361 /* FIXME CLUT formats */
1362 switch (color_mode) {
1363 case OMAP_DSS_COLOR_CLUT1:
1364 case OMAP_DSS_COLOR_CLUT2:
1365 case OMAP_DSS_COLOR_CLUT4:
1366 case OMAP_DSS_COLOR_CLUT8:
1367 BUG();
1368 return;
1369 case OMAP_DSS_COLOR_YUV2:
1370 case OMAP_DSS_COLOR_UYVY:
1371 ps = 4;
1372 break;
1373 default:
1374 ps = color_mode_to_bpp(color_mode) / 8;
1375 break;
1376 }
1377
1378 DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width,
1379 width, height);
1380
1381 /*
1382 * field 0 = even field = bottom field
1383 * field 1 = odd field = top field
1384 */
1385 switch (rotation + mirror * 4) {
1386 case OMAP_DSS_ROT_0:
1387 case OMAP_DSS_ROT_180:
1388 /*
1389 * If the pixel format is YUV or UYVY divide the width
1390 * of the image by 2 for 0 and 180 degree rotation.
1391 */
1392 if (color_mode == OMAP_DSS_COLOR_YUV2 ||
1393 color_mode == OMAP_DSS_COLOR_UYVY)
1394 width = width >> 1;
1395 case OMAP_DSS_ROT_90:
1396 case OMAP_DSS_ROT_270:
1397 *offset1 = 0;
1398 if (field_offset)
1399 *offset0 = field_offset * screen_width * ps;
1400 else
1401 *offset0 = 0;
1402
1403 *row_inc = pixinc(1 + (screen_width - width) +
1404 (fieldmode ? screen_width : 0),
1405 ps);
1406 *pix_inc = pixinc(1, ps);
1407 break;
1408
1409 case OMAP_DSS_ROT_0 + 4:
1410 case OMAP_DSS_ROT_180 + 4:
1411 /* If the pixel format is YUV or UYVY divide the width
1412 * of the image by 2 for 0 degree and 180 degree
1413 */
1414 if (color_mode == OMAP_DSS_COLOR_YUV2 ||
1415 color_mode == OMAP_DSS_COLOR_UYVY)
1416 width = width >> 1;
1417 case OMAP_DSS_ROT_90 + 4:
1418 case OMAP_DSS_ROT_270 + 4:
1419 *offset1 = 0;
1420 if (field_offset)
1421 *offset0 = field_offset * screen_width * ps;
1422 else
1423 *offset0 = 0;
1424 *row_inc = pixinc(1 - (screen_width + width) -
1425 (fieldmode ? screen_width : 0),
1426 ps);
1427 *pix_inc = pixinc(1, ps);
1428 break;
1429
1430 default:
1431 BUG();
1432 }
1433}
1434
1435static void calc_dma_rotation_offset(u8 rotation, bool mirror,
1436 u16 screen_width,
1437 u16 width, u16 height,
1438 enum omap_color_mode color_mode, bool fieldmode,
1439 unsigned int field_offset,
1440 unsigned *offset0, unsigned *offset1,
1441 s32 *row_inc, s32 *pix_inc)
1442{
1443 u8 ps;
1444 u16 fbw, fbh;
1445
1446 /* FIXME CLUT formats */
1447 switch (color_mode) {
1448 case OMAP_DSS_COLOR_CLUT1:
1449 case OMAP_DSS_COLOR_CLUT2:
1450 case OMAP_DSS_COLOR_CLUT4:
1451 case OMAP_DSS_COLOR_CLUT8:
1452 BUG();
1453 return;
1454 default:
1455 ps = color_mode_to_bpp(color_mode) / 8;
1456 break;
1457 }
1458
1459 DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width,
1460 width, height);
1461
1462 /* width & height are overlay sizes, convert to fb sizes */
1463
1464 if (rotation == OMAP_DSS_ROT_0 || rotation == OMAP_DSS_ROT_180) {
1465 fbw = width;
1466 fbh = height;
1467 } else {
1468 fbw = height;
1469 fbh = width;
1470 }
1471
1472 /*
1473 * field 0 = even field = bottom field
1474 * field 1 = odd field = top field
1475 */
1476 switch (rotation + mirror * 4) {
1477 case OMAP_DSS_ROT_0:
1478 *offset1 = 0;
1479 if (field_offset)
1480 *offset0 = *offset1 + field_offset * screen_width * ps;
1481 else
1482 *offset0 = *offset1;
1483 *row_inc = pixinc(1 + (screen_width - fbw) +
1484 (fieldmode ? screen_width : 0),
1485 ps);
1486 *pix_inc = pixinc(1, ps);
1487 break;
1488 case OMAP_DSS_ROT_90:
1489 *offset1 = screen_width * (fbh - 1) * ps;
1490 if (field_offset)
1491 *offset0 = *offset1 + field_offset * ps;
1492 else
1493 *offset0 = *offset1;
1494 *row_inc = pixinc(screen_width * (fbh - 1) + 1 +
1495 (fieldmode ? 1 : 0), ps);
1496 *pix_inc = pixinc(-screen_width, ps);
1497 break;
1498 case OMAP_DSS_ROT_180:
1499 *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps;
1500 if (field_offset)
1501 *offset0 = *offset1 - field_offset * screen_width * ps;
1502 else
1503 *offset0 = *offset1;
1504 *row_inc = pixinc(-1 -
1505 (screen_width - fbw) -
1506 (fieldmode ? screen_width : 0),
1507 ps);
1508 *pix_inc = pixinc(-1, ps);
1509 break;
1510 case OMAP_DSS_ROT_270:
1511 *offset1 = (fbw - 1) * ps;
1512 if (field_offset)
1513 *offset0 = *offset1 - field_offset * ps;
1514 else
1515 *offset0 = *offset1;
1516 *row_inc = pixinc(-screen_width * (fbh - 1) - 1 -
1517 (fieldmode ? 1 : 0), ps);
1518 *pix_inc = pixinc(screen_width, ps);
1519 break;
1520
1521 /* mirroring */
1522 case OMAP_DSS_ROT_0 + 4:
1523 *offset1 = (fbw - 1) * ps;
1524 if (field_offset)
1525 *offset0 = *offset1 + field_offset * screen_width * ps;
1526 else
1527 *offset0 = *offset1;
1528 *row_inc = pixinc(screen_width * 2 - 1 +
1529 (fieldmode ? screen_width : 0),
1530 ps);
1531 *pix_inc = pixinc(-1, ps);
1532 break;
1533
1534 case OMAP_DSS_ROT_90 + 4:
1535 *offset1 = 0;
1536 if (field_offset)
1537 *offset0 = *offset1 + field_offset * ps;
1538 else
1539 *offset0 = *offset1;
1540 *row_inc = pixinc(-screen_width * (fbh - 1) + 1 +
1541 (fieldmode ? 1 : 0),
1542 ps);
1543 *pix_inc = pixinc(screen_width, ps);
1544 break;
1545
1546 case OMAP_DSS_ROT_180 + 4:
1547 *offset1 = screen_width * (fbh - 1) * ps;
1548 if (field_offset)
1549 *offset0 = *offset1 - field_offset * screen_width * ps;
1550 else
1551 *offset0 = *offset1;
1552 *row_inc = pixinc(1 - screen_width * 2 -
1553 (fieldmode ? screen_width : 0),
1554 ps);
1555 *pix_inc = pixinc(1, ps);
1556 break;
1557
1558 case OMAP_DSS_ROT_270 + 4:
1559 *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps;
1560 if (field_offset)
1561 *offset0 = *offset1 - field_offset * ps;
1562 else
1563 *offset0 = *offset1;
1564 *row_inc = pixinc(screen_width * (fbh - 1) - 1 -
1565 (fieldmode ? 1 : 0),
1566 ps);
1567 *pix_inc = pixinc(-screen_width, ps);
1568 break;
1569
1570 default:
1571 BUG();
1572 }
1573}
1574
Sumit Semwalff1b2cd2010-12-02 11:27:11 +0000[diff] [blame]1575static unsigned long calc_fclk_five_taps(enum omap_channel channel, u16 width,
1576 u16 height, u16 out_width, u16 out_height,
1577 enum omap_color_mode color_mode)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1578{
1579 u32 fclk = 0;
1580 /* FIXME venc pclk? */
Sumit Semwalff1b2cd2010-12-02 11:27:11 +0000[diff] [blame]1581 u64 tmp, pclk = dispc_pclk_rate(channel);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1582
1583 if (height > out_height) {
1584 /* FIXME get real display PPL */
1585 unsigned int ppl = 800;
1586
1587 tmp = pclk * height * out_width;
1588 do_div(tmp, 2 * out_height * ppl);
1589 fclk = tmp;
1590
Ville Syrjälä2d9c5592010-01-08 11:56:41 +0200[diff] [blame]1591 if (height > 2 * out_height) {
1592 if (ppl == out_width)
1593 return 0;
1594
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1595 tmp = pclk * (height - 2 * out_height) * out_width;
1596 do_div(tmp, 2 * out_height * (ppl - out_width));
1597 fclk = max(fclk, (u32) tmp);
1598 }
1599 }
1600
1601 if (width > out_width) {
1602 tmp = pclk * width;
1603 do_div(tmp, out_width);
1604 fclk = max(fclk, (u32) tmp);
1605
1606 if (color_mode == OMAP_DSS_COLOR_RGB24U)
1607 fclk <<= 1;
1608 }
1609
1610 return fclk;
1611}
1612
Sumit Semwalff1b2cd2010-12-02 11:27:11 +0000[diff] [blame]1613static unsigned long calc_fclk(enum omap_channel channel, u16 width,
1614 u16 height, u16 out_width, u16 out_height)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1615{
1616 unsigned int hf, vf;
1617
1618 /*
1619 * FIXME how to determine the 'A' factor
1620 * for the no downscaling case ?
1621 */
1622
1623 if (width > 3 * out_width)
1624 hf = 4;
1625 else if (width > 2 * out_width)
1626 hf = 3;
1627 else if (width > out_width)
1628 hf = 2;
1629 else
1630 hf = 1;
1631
1632 if (height > out_height)
1633 vf = 2;
1634 else
1635 vf = 1;
1636
1637 /* FIXME venc pclk? */
Sumit Semwalff1b2cd2010-12-02 11:27:11 +0000[diff] [blame]1638 return dispc_pclk_rate(channel) * vf * hf;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1639}
1640
1641void dispc_set_channel_out(enum omap_plane plane, enum omap_channel channel_out)
1642{
1643 enable_clocks(1);
1644 _dispc_set_channel_out(plane, channel_out);
1645 enable_clocks(0);
1646}
1647
1648static int _dispc_setup_plane(enum omap_plane plane,
1649 u32 paddr, u16 screen_width,
1650 u16 pos_x, u16 pos_y,
1651 u16 width, u16 height,
1652 u16 out_width, u16 out_height,
1653 enum omap_color_mode color_mode,
1654 bool ilace,
1655 enum omap_dss_rotation_type rotation_type,
1656 u8 rotation, int mirror,
Sumit Semwal18faa1b2010-12-02 11:27:14 +0000[diff] [blame]1657 u8 global_alpha, u8 pre_mult_alpha,
1658 enum omap_channel channel)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1659{
1660 const int maxdownscale = cpu_is_omap34xx() ? 4 : 2;
1661 bool five_taps = 0;
1662 bool fieldmode = 0;
1663 int cconv = 0;
1664 unsigned offset0, offset1;
1665 s32 row_inc;
1666 s32 pix_inc;
1667 u16 frame_height = height;
1668 unsigned int field_offset = 0;
1669
1670 if (paddr == 0)
1671 return -EINVAL;
1672
1673 if (ilace && height == out_height)
1674 fieldmode = 1;
1675
1676 if (ilace) {
1677 if (fieldmode)
1678 height /= 2;
1679 pos_y /= 2;
1680 out_height /= 2;
1681
1682 DSSDBG("adjusting for ilace: height %d, pos_y %d, "
1683 "out_height %d\n",
1684 height, pos_y, out_height);
1685 }
1686
Archit Taneja8dad2ab2010-11-25 17:58:10 +0530[diff] [blame]1687 if (!dss_feat_color_mode_supported(plane, color_mode))
1688 return -EINVAL;
1689
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1690 if (plane == OMAP_DSS_GFX) {
1691 if (width != out_width || height != out_height)
1692 return -EINVAL;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1693 } else {
1694 /* video plane */
1695
1696 unsigned long fclk = 0;
1697
1698 if (out_width < width / maxdownscale ||
1699 out_width > width * 8)
1700 return -EINVAL;
1701
1702 if (out_height < height / maxdownscale ||
1703 out_height > height * 8)
1704 return -EINVAL;
1705
Archit Taneja8dad2ab2010-11-25 17:58:10 +0530[diff] [blame]1706 if (color_mode == OMAP_DSS_COLOR_YUV2 ||
1707 color_mode == OMAP_DSS_COLOR_UYVY)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1708 cconv = 1;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1709
1710 /* Must use 5-tap filter? */
1711 five_taps = height > out_height * 2;
1712
1713 if (!five_taps) {
Sumit Semwal18faa1b2010-12-02 11:27:14 +0000[diff] [blame]1714 fclk = calc_fclk(channel, width, height, out_width,
1715 out_height);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1716
1717 /* Try 5-tap filter if 3-tap fclk is too high */
1718 if (cpu_is_omap34xx() && height > out_height &&
1719 fclk > dispc_fclk_rate())
1720 five_taps = true;
1721 }
1722
1723 if (width > (2048 >> five_taps)) {
1724 DSSERR("failed to set up scaling, fclk too low\n");
1725 return -EINVAL;
1726 }
1727
1728 if (five_taps)
Sumit Semwal18faa1b2010-12-02 11:27:14 +0000[diff] [blame]1729 fclk = calc_fclk_five_taps(channel, width, height,
1730 out_width, out_height, color_mode);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1731
1732 DSSDBG("required fclk rate = %lu Hz\n", fclk);
1733 DSSDBG("current fclk rate = %lu Hz\n", dispc_fclk_rate());
1734
Ville Syrjälä2d9c5592010-01-08 11:56:41 +0200[diff] [blame]1735 if (!fclk || fclk > dispc_fclk_rate()) {
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1736 DSSERR("failed to set up scaling, "
1737 "required fclk rate = %lu Hz, "
1738 "current fclk rate = %lu Hz\n",
1739 fclk, dispc_fclk_rate());
1740 return -EINVAL;
1741 }
1742 }
1743
1744 if (ilace && !fieldmode) {
1745 /*
1746 * when downscaling the bottom field may have to start several
1747 * source lines below the top field. Unfortunately ACCUI
1748 * registers will only hold the fractional part of the offset
1749 * so the integer part must be added to the base address of the
1750 * bottom field.
1751 */
1752 if (!height || height == out_height)
1753 field_offset = 0;
1754 else
1755 field_offset = height / out_height / 2;
1756 }
1757
1758 /* Fields are independent but interleaved in memory. */
1759 if (fieldmode)
1760 field_offset = 1;
1761
1762 if (rotation_type == OMAP_DSS_ROT_DMA)
1763 calc_dma_rotation_offset(rotation, mirror,
1764 screen_width, width, frame_height, color_mode,
1765 fieldmode, field_offset,
1766 &offset0, &offset1, &row_inc, &pix_inc);
1767 else
1768 calc_vrfb_rotation_offset(rotation, mirror,
1769 screen_width, width, frame_height, color_mode,
1770 fieldmode, field_offset,
1771 &offset0, &offset1, &row_inc, &pix_inc);
1772
1773 DSSDBG("offset0 %u, offset1 %u, row_inc %d, pix_inc %d\n",
1774 offset0, offset1, row_inc, pix_inc);
1775
1776 _dispc_set_color_mode(plane, color_mode);
1777
1778 _dispc_set_plane_ba0(plane, paddr + offset0);
1779 _dispc_set_plane_ba1(plane, paddr + offset1);
1780
1781 _dispc_set_row_inc(plane, row_inc);
1782 _dispc_set_pix_inc(plane, pix_inc);
1783
1784 DSSDBG("%d,%d %dx%d -> %dx%d\n", pos_x, pos_y, width, height,
1785 out_width, out_height);
1786
1787 _dispc_set_plane_pos(plane, pos_x, pos_y);
1788
1789 _dispc_set_pic_size(plane, width, height);
1790
1791 if (plane != OMAP_DSS_GFX) {
1792 _dispc_set_scaling(plane, width, height,
1793 out_width, out_height,
1794 ilace, five_taps, fieldmode);
1795 _dispc_set_vid_size(plane, out_width, out_height);
1796 _dispc_set_vid_color_conv(plane, cconv);
1797 }
1798
1799 _dispc_set_rotation_attrs(plane, rotation, mirror, color_mode);
1800
Rajkumar Nfd28a392010-11-04 12:28:42 +0100[diff] [blame]1801 _dispc_set_pre_mult_alpha(plane, pre_mult_alpha);
1802 _dispc_setup_global_alpha(plane, global_alpha);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1803
1804 return 0;
1805}
1806
1807static void _dispc_enable_plane(enum omap_plane plane, bool enable)
1808{
1809 REG_FLD_MOD(dispc_reg_att[plane], enable ? 1 : 0, 0, 0);
1810}
1811
1812static void dispc_disable_isr(void *data, u32 mask)
1813{
1814 struct completion *compl = data;
1815 complete(compl);
1816}
1817
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]1818static void _enable_lcd_out(enum omap_channel channel, bool enable)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1819{
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]1820 if (channel == OMAP_DSS_CHANNEL_LCD2)
1821 REG_FLD_MOD(DISPC_CONTROL2, enable ? 1 : 0, 0, 0);
1822 else
1823 REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 0, 0);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1824}
1825
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]1826static void dispc_enable_lcd_out(enum omap_channel channel, bool enable)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1827{
1828 struct completion frame_done_completion;
1829 bool is_on;
1830 int r;
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]1831 u32 irq;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1832
1833 enable_clocks(1);
1834
1835 /* When we disable LCD output, we need to wait until frame is done.
1836 * Otherwise the DSS is still working, and turning off the clocks
1837 * prevents DSS from going to OFF mode */
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]1838 is_on = channel == OMAP_DSS_CHANNEL_LCD2 ?
1839 REG_GET(DISPC_CONTROL2, 0, 0) :
1840 REG_GET(DISPC_CONTROL, 0, 0);
1841
1842 irq = channel == OMAP_DSS_CHANNEL_LCD2 ? DISPC_IRQ_FRAMEDONE2 :
1843 DISPC_IRQ_FRAMEDONE;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1844
1845 if (!enable && is_on) {
1846 init_completion(&frame_done_completion);
1847
1848 r = omap_dispc_register_isr(dispc_disable_isr,
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]1849 &frame_done_completion, irq);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1850
1851 if (r)
1852 DSSERR("failed to register FRAMEDONE isr\n");
1853 }
1854
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]1855 _enable_lcd_out(channel, enable);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1856
1857 if (!enable && is_on) {
1858 if (!wait_for_completion_timeout(&frame_done_completion,
1859 msecs_to_jiffies(100)))
1860 DSSERR("timeout waiting for FRAME DONE\n");
1861
1862 r = omap_dispc_unregister_isr(dispc_disable_isr,
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]1863 &frame_done_completion, irq);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1864
1865 if (r)
1866 DSSERR("failed to unregister FRAMEDONE isr\n");
1867 }
1868
1869 enable_clocks(0);
1870}
1871
1872static void _enable_digit_out(bool enable)
1873{
1874 REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 1, 1);
1875}
1876
Tomi Valkeinena2faee82010-01-08 17:14:53 +0200[diff] [blame]1877static void dispc_enable_digit_out(bool enable)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1878{
1879 struct completion frame_done_completion;
1880 int r;
1881
1882 enable_clocks(1);
1883
1884 if (REG_GET(DISPC_CONTROL, 1, 1) == enable) {
1885 enable_clocks(0);
1886 return;
1887 }
1888
1889 if (enable) {
1890 unsigned long flags;
1891 /* When we enable digit output, we'll get an extra digit
1892 * sync lost interrupt, that we need to ignore */
1893 spin_lock_irqsave(&dispc.irq_lock, flags);
1894 dispc.irq_error_mask &= ~DISPC_IRQ_SYNC_LOST_DIGIT;
1895 _omap_dispc_set_irqs();
1896 spin_unlock_irqrestore(&dispc.irq_lock, flags);
1897 }
1898
1899 /* When we disable digit output, we need to wait until fields are done.
1900 * Otherwise the DSS is still working, and turning off the clocks
1901 * prevents DSS from going to OFF mode. And when enabling, we need to
1902 * wait for the extra sync losts */
1903 init_completion(&frame_done_completion);
1904
1905 r = omap_dispc_register_isr(dispc_disable_isr, &frame_done_completion,
1906 DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD);
1907 if (r)
1908 DSSERR("failed to register EVSYNC isr\n");
1909
1910 _enable_digit_out(enable);
1911
1912 /* XXX I understand from TRM that we should only wait for the
1913 * current field to complete. But it seems we have to wait
1914 * for both fields */
1915 if (!wait_for_completion_timeout(&frame_done_completion,
1916 msecs_to_jiffies(100)))
1917 DSSERR("timeout waiting for EVSYNC\n");
1918
1919 if (!wait_for_completion_timeout(&frame_done_completion,
1920 msecs_to_jiffies(100)))
1921 DSSERR("timeout waiting for EVSYNC\n");
1922
1923 r = omap_dispc_unregister_isr(dispc_disable_isr,
1924 &frame_done_completion,
1925 DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD);
1926 if (r)
1927 DSSERR("failed to unregister EVSYNC isr\n");
1928
1929 if (enable) {
1930 unsigned long flags;
1931 spin_lock_irqsave(&dispc.irq_lock, flags);
1932 dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR;
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]1933 if (dss_has_feature(FEAT_MGR_LCD2))
1934 dispc.irq_error_mask |= DISPC_IRQ_SYNC_LOST2;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1935 dispc_write_reg(DISPC_IRQSTATUS, DISPC_IRQ_SYNC_LOST_DIGIT);
1936 _omap_dispc_set_irqs();
1937 spin_unlock_irqrestore(&dispc.irq_lock, flags);
1938 }
1939
1940 enable_clocks(0);
1941}
1942
Tomi Valkeinena2faee82010-01-08 17:14:53 +0200[diff] [blame]1943bool dispc_is_channel_enabled(enum omap_channel channel)
1944{
1945 if (channel == OMAP_DSS_CHANNEL_LCD)
1946 return !!REG_GET(DISPC_CONTROL, 0, 0);
1947 else if (channel == OMAP_DSS_CHANNEL_DIGIT)
1948 return !!REG_GET(DISPC_CONTROL, 1, 1);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]1949 else if (channel == OMAP_DSS_CHANNEL_LCD2)
1950 return !!REG_GET(DISPC_CONTROL2, 0, 0);
Tomi Valkeinena2faee82010-01-08 17:14:53 +0200[diff] [blame]1951 else
1952 BUG();
1953}
1954
1955void dispc_enable_channel(enum omap_channel channel, bool enable)
1956{
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]1957 if (channel == OMAP_DSS_CHANNEL_LCD ||
1958 channel == OMAP_DSS_CHANNEL_LCD2)
1959 dispc_enable_lcd_out(channel, enable);
Tomi Valkeinena2faee82010-01-08 17:14:53 +0200[diff] [blame]1960 else if (channel == OMAP_DSS_CHANNEL_DIGIT)
1961 dispc_enable_digit_out(enable);
1962 else
1963 BUG();
1964}
1965
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1966void dispc_lcd_enable_signal_polarity(bool act_high)
1967{
Archit Taneja6ced40b2010-12-02 11:27:13 +0000[diff] [blame]1968 if (!dss_has_feature(FEAT_LCDENABLEPOL))
1969 return;
1970
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1971 enable_clocks(1);
1972 REG_FLD_MOD(DISPC_CONTROL, act_high ? 1 : 0, 29, 29);
1973 enable_clocks(0);
1974}
1975
1976void dispc_lcd_enable_signal(bool enable)
1977{
Archit Taneja6ced40b2010-12-02 11:27:13 +0000[diff] [blame]1978 if (!dss_has_feature(FEAT_LCDENABLESIGNAL))
1979 return;
1980
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1981 enable_clocks(1);
1982 REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 28, 28);
1983 enable_clocks(0);
1984}
1985
1986void dispc_pck_free_enable(bool enable)
1987{
Archit Taneja6ced40b2010-12-02 11:27:13 +0000[diff] [blame]1988 if (!dss_has_feature(FEAT_PCKFREEENABLE))
1989 return;
1990
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1991 enable_clocks(1);
1992 REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 27, 27);
1993 enable_clocks(0);
1994}
1995
Sumit Semwal64ba4f72010-12-02 11:27:10 +0000[diff] [blame]1996void dispc_enable_fifohandcheck(enum omap_channel channel, bool enable)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]1997{
1998 enable_clocks(1);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]1999 if (channel == OMAP_DSS_CHANNEL_LCD2)
2000 REG_FLD_MOD(DISPC_CONFIG2, enable ? 1 : 0, 16, 16);
2001 else
2002 REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 16, 16);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2003 enable_clocks(0);
2004}
2005
2006
Sumit Semwal64ba4f72010-12-02 11:27:10 +0000[diff] [blame]2007void dispc_set_lcd_display_type(enum omap_channel channel,
2008 enum omap_lcd_display_type type)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2009{
2010 int mode;
2011
2012 switch (type) {
2013 case OMAP_DSS_LCD_DISPLAY_STN:
2014 mode = 0;
2015 break;
2016
2017 case OMAP_DSS_LCD_DISPLAY_TFT:
2018 mode = 1;
2019 break;
2020
2021 default:
2022 BUG();
2023 return;
2024 }
2025
2026 enable_clocks(1);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2027 if (channel == OMAP_DSS_CHANNEL_LCD2)
2028 REG_FLD_MOD(DISPC_CONTROL2, mode, 3, 3);
2029 else
2030 REG_FLD_MOD(DISPC_CONTROL, mode, 3, 3);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2031 enable_clocks(0);
2032}
2033
2034void dispc_set_loadmode(enum omap_dss_load_mode mode)
2035{
2036 enable_clocks(1);
2037 REG_FLD_MOD(DISPC_CONFIG, mode, 2, 1);
2038 enable_clocks(0);
2039}
2040
2041
2042void dispc_set_default_color(enum omap_channel channel, u32 color)
2043{
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2044 enable_clocks(1);
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]2045 dispc_write_reg(DISPC_DEFAULT_COLOR(channel), color);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2046 enable_clocks(0);
2047}
2048
2049u32 dispc_get_default_color(enum omap_channel channel)
2050{
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2051 u32 l;
2052
2053 BUG_ON(channel != OMAP_DSS_CHANNEL_DIGIT &&
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2054 channel != OMAP_DSS_CHANNEL_LCD &&
2055 channel != OMAP_DSS_CHANNEL_LCD2);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2056
2057 enable_clocks(1);
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]2058 l = dispc_read_reg(DISPC_DEFAULT_COLOR(channel));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2059 enable_clocks(0);
2060
2061 return l;
2062}
2063
2064void dispc_set_trans_key(enum omap_channel ch,
2065 enum omap_dss_trans_key_type type,
2066 u32 trans_key)
2067{
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2068 enable_clocks(1);
2069 if (ch == OMAP_DSS_CHANNEL_LCD)
2070 REG_FLD_MOD(DISPC_CONFIG, type, 11, 11);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2071 else if (ch == OMAP_DSS_CHANNEL_DIGIT)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2072 REG_FLD_MOD(DISPC_CONFIG, type, 13, 13);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2073 else /* OMAP_DSS_CHANNEL_LCD2 */
2074 REG_FLD_MOD(DISPC_CONFIG2, type, 11, 11);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2075
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]2076 dispc_write_reg(DISPC_TRANS_COLOR(ch), trans_key);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2077 enable_clocks(0);
2078}
2079
2080void dispc_get_trans_key(enum omap_channel ch,
2081 enum omap_dss_trans_key_type *type,
2082 u32 *trans_key)
2083{
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2084 enable_clocks(1);
2085 if (type) {
2086 if (ch == OMAP_DSS_CHANNEL_LCD)
2087 *type = REG_GET(DISPC_CONFIG, 11, 11);
2088 else if (ch == OMAP_DSS_CHANNEL_DIGIT)
2089 *type = REG_GET(DISPC_CONFIG, 13, 13);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2090 else if (ch == OMAP_DSS_CHANNEL_LCD2)
2091 *type = REG_GET(DISPC_CONFIG2, 11, 11);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2092 else
2093 BUG();
2094 }
2095
2096 if (trans_key)
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]2097 *trans_key = dispc_read_reg(DISPC_TRANS_COLOR(ch));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2098 enable_clocks(0);
2099}
2100
2101void dispc_enable_trans_key(enum omap_channel ch, bool enable)
2102{
2103 enable_clocks(1);
2104 if (ch == OMAP_DSS_CHANNEL_LCD)
2105 REG_FLD_MOD(DISPC_CONFIG, enable, 10, 10);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2106 else if (ch == OMAP_DSS_CHANNEL_DIGIT)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2107 REG_FLD_MOD(DISPC_CONFIG, enable, 12, 12);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2108 else /* OMAP_DSS_CHANNEL_LCD2 */
2109 REG_FLD_MOD(DISPC_CONFIG2, enable, 10, 10);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2110 enable_clocks(0);
2111}
2112void dispc_enable_alpha_blending(enum omap_channel ch, bool enable)
2113{
Archit Tanejaa0acb552010-09-15 19:20:00 +0530[diff] [blame]2114 if (!dss_has_feature(FEAT_GLOBAL_ALPHA))
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2115 return;
2116
2117 enable_clocks(1);
2118 if (ch == OMAP_DSS_CHANNEL_LCD)
2119 REG_FLD_MOD(DISPC_CONFIG, enable, 18, 18);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2120 else if (ch == OMAP_DSS_CHANNEL_DIGIT)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2121 REG_FLD_MOD(DISPC_CONFIG, enable, 19, 19);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2122 else /* OMAP_DSS_CHANNEL_LCD2 */
2123 REG_FLD_MOD(DISPC_CONFIG2, enable, 18, 18);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2124 enable_clocks(0);
2125}
2126bool dispc_alpha_blending_enabled(enum omap_channel ch)
2127{
2128 bool enabled;
2129
Archit Tanejaa0acb552010-09-15 19:20:00 +0530[diff] [blame]2130 if (!dss_has_feature(FEAT_GLOBAL_ALPHA))
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2131 return false;
2132
2133 enable_clocks(1);
2134 if (ch == OMAP_DSS_CHANNEL_LCD)
2135 enabled = REG_GET(DISPC_CONFIG, 18, 18);
2136 else if (ch == OMAP_DSS_CHANNEL_DIGIT)
Archit Taneja712247a2010-11-08 12:56:21 +0100[diff] [blame]2137 enabled = REG_GET(DISPC_CONFIG, 19, 19);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2138 else if (ch == OMAP_DSS_CHANNEL_LCD2)
2139 enabled = REG_GET(DISPC_CONFIG2, 18, 18);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2140 else
2141 BUG();
2142 enable_clocks(0);
2143
2144 return enabled;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2145}
2146
2147
2148bool dispc_trans_key_enabled(enum omap_channel ch)
2149{
2150 bool enabled;
2151
2152 enable_clocks(1);
2153 if (ch == OMAP_DSS_CHANNEL_LCD)
2154 enabled = REG_GET(DISPC_CONFIG, 10, 10);
2155 else if (ch == OMAP_DSS_CHANNEL_DIGIT)
2156 enabled = REG_GET(DISPC_CONFIG, 12, 12);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2157 else if (ch == OMAP_DSS_CHANNEL_LCD2)
2158 enabled = REG_GET(DISPC_CONFIG2, 10, 10);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2159 else
2160 BUG();
2161 enable_clocks(0);
2162
2163 return enabled;
2164}
2165
2166
Sumit Semwal64ba4f72010-12-02 11:27:10 +0000[diff] [blame]2167void dispc_set_tft_data_lines(enum omap_channel channel, u8 data_lines)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2168{
2169 int code;
2170
2171 switch (data_lines) {
2172 case 12:
2173 code = 0;
2174 break;
2175 case 16:
2176 code = 1;
2177 break;
2178 case 18:
2179 code = 2;
2180 break;
2181 case 24:
2182 code = 3;
2183 break;
2184 default:
2185 BUG();
2186 return;
2187 }
2188
2189 enable_clocks(1);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2190 if (channel == OMAP_DSS_CHANNEL_LCD2)
2191 REG_FLD_MOD(DISPC_CONTROL2, code, 9, 8);
2192 else
2193 REG_FLD_MOD(DISPC_CONTROL, code, 9, 8);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2194 enable_clocks(0);
2195}
2196
Sumit Semwal64ba4f72010-12-02 11:27:10 +0000[diff] [blame]2197void dispc_set_parallel_interface_mode(enum omap_channel channel,
2198 enum omap_parallel_interface_mode mode)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2199{
2200 u32 l;
2201 int stallmode;
2202 int gpout0 = 1;
2203 int gpout1;
2204
2205 switch (mode) {
2206 case OMAP_DSS_PARALLELMODE_BYPASS:
2207 stallmode = 0;
2208 gpout1 = 1;
2209 break;
2210
2211 case OMAP_DSS_PARALLELMODE_RFBI:
2212 stallmode = 1;
2213 gpout1 = 0;
2214 break;
2215
2216 case OMAP_DSS_PARALLELMODE_DSI:
2217 stallmode = 1;
2218 gpout1 = 1;
2219 break;
2220
2221 default:
2222 BUG();
2223 return;
2224 }
2225
2226 enable_clocks(1);
2227
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2228 if (channel == OMAP_DSS_CHANNEL_LCD2) {
2229 l = dispc_read_reg(DISPC_CONTROL2);
2230 l = FLD_MOD(l, stallmode, 11, 11);
2231 dispc_write_reg(DISPC_CONTROL2, l);
2232 } else {
2233 l = dispc_read_reg(DISPC_CONTROL);
2234 l = FLD_MOD(l, stallmode, 11, 11);
Sumit Semwal64ba4f72010-12-02 11:27:10 +0000[diff] [blame]2235 l = FLD_MOD(l, gpout0, 15, 15);
2236 l = FLD_MOD(l, gpout1, 16, 16);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2237 dispc_write_reg(DISPC_CONTROL, l);
Sumit Semwal64ba4f72010-12-02 11:27:10 +0000[diff] [blame]2238 }
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2239
2240 enable_clocks(0);
2241}
2242
2243static bool _dispc_lcd_timings_ok(int hsw, int hfp, int hbp,
2244 int vsw, int vfp, int vbp)
2245{
2246 if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) {
2247 if (hsw < 1 || hsw > 64 ||
2248 hfp < 1 || hfp > 256 ||
2249 hbp < 1 || hbp > 256 ||
2250 vsw < 1 || vsw > 64 ||
2251 vfp < 0 || vfp > 255 ||
2252 vbp < 0 || vbp > 255)
2253 return false;
2254 } else {
2255 if (hsw < 1 || hsw > 256 ||
2256 hfp < 1 || hfp > 4096 ||
2257 hbp < 1 || hbp > 4096 ||
2258 vsw < 1 || vsw > 256 ||
2259 vfp < 0 || vfp > 4095 ||
2260 vbp < 0 || vbp > 4095)
2261 return false;
2262 }
2263
2264 return true;
2265}
2266
2267bool dispc_lcd_timings_ok(struct omap_video_timings *timings)
2268{
2269 return _dispc_lcd_timings_ok(timings->hsw, timings->hfp,
2270 timings->hbp, timings->vsw,
2271 timings->vfp, timings->vbp);
2272}
2273
Sumit Semwal64ba4f72010-12-02 11:27:10 +0000[diff] [blame]2274static void _dispc_set_lcd_timings(enum omap_channel channel, int hsw,
2275 int hfp, int hbp, int vsw, int vfp, int vbp)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2276{
2277 u32 timing_h, timing_v;
2278
2279 if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) {
2280 timing_h = FLD_VAL(hsw-1, 5, 0) | FLD_VAL(hfp-1, 15, 8) |
2281 FLD_VAL(hbp-1, 27, 20);
2282
2283 timing_v = FLD_VAL(vsw-1, 5, 0) | FLD_VAL(vfp, 15, 8) |
2284 FLD_VAL(vbp, 27, 20);
2285 } else {
2286 timing_h = FLD_VAL(hsw-1, 7, 0) | FLD_VAL(hfp-1, 19, 8) |
2287 FLD_VAL(hbp-1, 31, 20);
2288
2289 timing_v = FLD_VAL(vsw-1, 7, 0) | FLD_VAL(vfp, 19, 8) |
2290 FLD_VAL(vbp, 31, 20);
2291 }
2292
2293 enable_clocks(1);
Sumit Semwal64ba4f72010-12-02 11:27:10 +0000[diff] [blame]2294 dispc_write_reg(DISPC_TIMING_H(channel), timing_h);
2295 dispc_write_reg(DISPC_TIMING_V(channel), timing_v);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2296 enable_clocks(0);
2297}
2298
2299/* change name to mode? */
Sumit Semwal64ba4f72010-12-02 11:27:10 +0000[diff] [blame]2300void dispc_set_lcd_timings(enum omap_channel channel,
2301 struct omap_video_timings *timings)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2302{
2303 unsigned xtot, ytot;
2304 unsigned long ht, vt;
2305
2306 if (!_dispc_lcd_timings_ok(timings->hsw, timings->hfp,
2307 timings->hbp, timings->vsw,
2308 timings->vfp, timings->vbp))
2309 BUG();
2310
Sumit Semwal64ba4f72010-12-02 11:27:10 +0000[diff] [blame]2311 _dispc_set_lcd_timings(channel, timings->hsw, timings->hfp,
2312 timings->hbp, timings->vsw, timings->vfp,
2313 timings->vbp);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2314
Sumit Semwal64ba4f72010-12-02 11:27:10 +0000[diff] [blame]2315 dispc_set_lcd_size(channel, timings->x_res, timings->y_res);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2316
2317 xtot = timings->x_res + timings->hfp + timings->hsw + timings->hbp;
2318 ytot = timings->y_res + timings->vfp + timings->vsw + timings->vbp;
2319
2320 ht = (timings->pixel_clock * 1000) / xtot;
2321 vt = (timings->pixel_clock * 1000) / xtot / ytot;
2322
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2323 DSSDBG("channel %d xres %u yres %u\n", channel, timings->x_res,
2324 timings->y_res);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2325 DSSDBG("pck %u\n", timings->pixel_clock);
2326 DSSDBG("hsw %d hfp %d hbp %d vsw %d vfp %d vbp %d\n",
2327 timings->hsw, timings->hfp, timings->hbp,
2328 timings->vsw, timings->vfp, timings->vbp);
2329
2330 DSSDBG("hsync %luHz, vsync %luHz\n", ht, vt);
2331}
2332
Sumit Semwalff1b2cd2010-12-02 11:27:11 +0000[diff] [blame]2333static void dispc_set_lcd_divisor(enum omap_channel channel, u16 lck_div,
2334 u16 pck_div)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2335{
2336 BUG_ON(lck_div < 1);
2337 BUG_ON(pck_div < 2);
2338
2339 enable_clocks(1);
Murthy, Raghuveerce7fa5e2011-03-03 09:27:59 -0600[diff] [blame]2340 dispc_write_reg(DISPC_DIVISORo(channel),
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2341 FLD_VAL(lck_div, 23, 16) | FLD_VAL(pck_div, 7, 0));
2342 enable_clocks(0);
2343}
2344
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2345static void dispc_get_lcd_divisor(enum omap_channel channel, int *lck_div,
2346 int *pck_div)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2347{
2348 u32 l;
Murthy, Raghuveerce7fa5e2011-03-03 09:27:59 -0600[diff] [blame]2349 l = dispc_read_reg(DISPC_DIVISORo(channel));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2350 *lck_div = FLD_GET(l, 23, 16);
2351 *pck_div = FLD_GET(l, 7, 0);
2352}
2353
2354unsigned long dispc_fclk_rate(void)
2355{
2356 unsigned long r = 0;
2357
Taneja, Archit66534e82011-03-08 05:50:34 -0600[diff] [blame]2358 switch (dss_get_dispc_clk_source()) {
2359 case DSS_CLK_SRC_FCK:
Archit Taneja6af9cd12011-01-31 16:27:44 +0000[diff] [blame]2360 r = dss_clk_get_rate(DSS_CLK_FCK);
Taneja, Archit66534e82011-03-08 05:50:34 -0600[diff] [blame]2361 break;
2362 case DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:
Archit Taneja1bb47832011-02-24 14:17:30 +0530[diff] [blame]2363 r = dsi_get_pll_hsdiv_dispc_rate();
Taneja, Archit66534e82011-03-08 05:50:34 -0600[diff] [blame]2364 break;
2365 default:
2366 BUG();
2367 }
2368
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2369 return r;
2370}
2371
Sumit Semwalff1b2cd2010-12-02 11:27:11 +0000[diff] [blame]2372unsigned long dispc_lclk_rate(enum omap_channel channel)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2373{
2374 int lcd;
2375 unsigned long r;
2376 u32 l;
2377
Murthy, Raghuveerce7fa5e2011-03-03 09:27:59 -0600[diff] [blame]2378 l = dispc_read_reg(DISPC_DIVISORo(channel));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2379
2380 lcd = FLD_GET(l, 23, 16);
2381
Taneja, Architea751592011-03-08 05:50:35 -0600[diff] [blame]2382 switch (dss_get_lcd_clk_source(channel)) {
2383 case DSS_CLK_SRC_FCK:
2384 r = dss_clk_get_rate(DSS_CLK_FCK);
2385 break;
2386 case DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:
2387 r = dsi_get_pll_hsdiv_dispc_rate();
2388 break;
2389 default:
2390 BUG();
2391 }
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2392
2393 return r / lcd;
2394}
2395
Sumit Semwalff1b2cd2010-12-02 11:27:11 +0000[diff] [blame]2396unsigned long dispc_pclk_rate(enum omap_channel channel)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2397{
Taneja, Architea751592011-03-08 05:50:35 -0600[diff] [blame]2398 int pcd;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2399 unsigned long r;
2400 u32 l;
2401
Murthy, Raghuveerce7fa5e2011-03-03 09:27:59 -0600[diff] [blame]2402 l = dispc_read_reg(DISPC_DIVISORo(channel));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2403
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2404 pcd = FLD_GET(l, 7, 0);
2405
Taneja, Architea751592011-03-08 05:50:35 -0600[diff] [blame]2406 r = dispc_lclk_rate(channel);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2407
Taneja, Architea751592011-03-08 05:50:35 -0600[diff] [blame]2408 return r / pcd;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2409}
2410
2411void dispc_dump_clocks(struct seq_file *s)
2412{
2413 int lcd, pcd;
Murthy, Raghuveer0cf35df2011-03-03 09:28:00 -0600[diff] [blame]2414 u32 l;
Archit Taneja067a57e2011-03-02 11:57:25 +0530[diff] [blame]2415 enum dss_clk_source dispc_clk_src = dss_get_dispc_clk_source();
Taneja, Architea751592011-03-08 05:50:35 -0600[diff] [blame]2416 enum dss_clk_source lcd_clk_src;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2417
2418 enable_clocks(1);
2419
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2420 seq_printf(s, "- DISPC -\n");
2421
Archit Taneja067a57e2011-03-02 11:57:25 +0530[diff] [blame]2422 seq_printf(s, "dispc fclk source = %s (%s)\n",
2423 dss_get_generic_clk_source_name(dispc_clk_src),
2424 dss_feat_get_clk_source_name(dispc_clk_src));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2425
2426 seq_printf(s, "fck\t\t%-16lu\n", dispc_fclk_rate());
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2427
Murthy, Raghuveer0cf35df2011-03-03 09:28:00 -0600[diff] [blame]2428 if (dss_has_feature(FEAT_CORE_CLK_DIV)) {
2429 seq_printf(s, "- DISPC-CORE-CLK -\n");
2430 l = dispc_read_reg(DISPC_DIVISOR);
2431 lcd = FLD_GET(l, 23, 16);
2432
2433 seq_printf(s, "lck\t\t%-16lulck div\t%u\n",
2434 (dispc_fclk_rate()/lcd), lcd);
2435 }
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2436 seq_printf(s, "- LCD1 -\n");
2437
Taneja, Architea751592011-03-08 05:50:35 -0600[diff] [blame]2438 lcd_clk_src = dss_get_lcd_clk_source(OMAP_DSS_CHANNEL_LCD);
2439
2440 seq_printf(s, "lcd1_clk source = %s (%s)\n",
2441 dss_get_generic_clk_source_name(lcd_clk_src),
2442 dss_feat_get_clk_source_name(lcd_clk_src));
2443
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2444 dispc_get_lcd_divisor(OMAP_DSS_CHANNEL_LCD, &lcd, &pcd);
2445
Sumit Semwalff1b2cd2010-12-02 11:27:11 +0000[diff] [blame]2446 seq_printf(s, "lck\t\t%-16lulck div\t%u\n",
2447 dispc_lclk_rate(OMAP_DSS_CHANNEL_LCD), lcd);
2448 seq_printf(s, "pck\t\t%-16lupck div\t%u\n",
2449 dispc_pclk_rate(OMAP_DSS_CHANNEL_LCD), pcd);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2450 if (dss_has_feature(FEAT_MGR_LCD2)) {
2451 seq_printf(s, "- LCD2 -\n");
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2452
Taneja, Architea751592011-03-08 05:50:35 -0600[diff] [blame]2453 lcd_clk_src = dss_get_lcd_clk_source(OMAP_DSS_CHANNEL_LCD2);
2454
2455 seq_printf(s, "lcd2_clk source = %s (%s)\n",
2456 dss_get_generic_clk_source_name(lcd_clk_src),
2457 dss_feat_get_clk_source_name(lcd_clk_src));
2458
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2459 dispc_get_lcd_divisor(OMAP_DSS_CHANNEL_LCD2, &lcd, &pcd);
2460
2461 seq_printf(s, "lck\t\t%-16lulck div\t%u\n",
2462 dispc_lclk_rate(OMAP_DSS_CHANNEL_LCD2), lcd);
2463 seq_printf(s, "pck\t\t%-16lupck div\t%u\n",
2464 dispc_pclk_rate(OMAP_DSS_CHANNEL_LCD2), pcd);
2465 }
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2466 enable_clocks(0);
2467}
2468
Tomi Valkeinendfc0fd82009-12-17 14:35:21 +0200[diff] [blame]2469#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
2470void dispc_dump_irqs(struct seq_file *s)
2471{
2472 unsigned long flags;
2473 struct dispc_irq_stats stats;
2474
2475 spin_lock_irqsave(&dispc.irq_stats_lock, flags);
2476
2477 stats = dispc.irq_stats;
2478 memset(&dispc.irq_stats, 0, sizeof(dispc.irq_stats));
2479 dispc.irq_stats.last_reset = jiffies;
2480
2481 spin_unlock_irqrestore(&dispc.irq_stats_lock, flags);
2482
2483 seq_printf(s, "period %u ms\n",
2484 jiffies_to_msecs(jiffies - stats.last_reset));
2485
2486 seq_printf(s, "irqs %d\n", stats.irq_count);
2487#define PIS(x) \
2488 seq_printf(s, "%-20s %10d\n", #x, stats.irqs[ffs(DISPC_IRQ_##x)-1]);
2489
2490 PIS(FRAMEDONE);
2491 PIS(VSYNC);
2492 PIS(EVSYNC_EVEN);
2493 PIS(EVSYNC_ODD);
2494 PIS(ACBIAS_COUNT_STAT);
2495 PIS(PROG_LINE_NUM);
2496 PIS(GFX_FIFO_UNDERFLOW);
2497 PIS(GFX_END_WIN);
2498 PIS(PAL_GAMMA_MASK);
2499 PIS(OCP_ERR);
2500 PIS(VID1_FIFO_UNDERFLOW);
2501 PIS(VID1_END_WIN);
2502 PIS(VID2_FIFO_UNDERFLOW);
2503 PIS(VID2_END_WIN);
2504 PIS(SYNC_LOST);
2505 PIS(SYNC_LOST_DIGIT);
2506 PIS(WAKEUP);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2507 if (dss_has_feature(FEAT_MGR_LCD2)) {
2508 PIS(FRAMEDONE2);
2509 PIS(VSYNC2);
2510 PIS(ACBIAS_COUNT_STAT2);
2511 PIS(SYNC_LOST2);
2512 }
Tomi Valkeinendfc0fd82009-12-17 14:35:21 +0200[diff] [blame]2513#undef PIS
2514}
Tomi Valkeinendfc0fd82009-12-17 14:35:21 +0200[diff] [blame]2515#endif
2516
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2517void dispc_dump_regs(struct seq_file *s)
2518{
2519#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dispc_read_reg(r))
2520
Archit Taneja6af9cd12011-01-31 16:27:44 +0000[diff] [blame]2521 dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2522
2523 DUMPREG(DISPC_REVISION);
2524 DUMPREG(DISPC_SYSCONFIG);
2525 DUMPREG(DISPC_SYSSTATUS);
2526 DUMPREG(DISPC_IRQSTATUS);
2527 DUMPREG(DISPC_IRQENABLE);
2528 DUMPREG(DISPC_CONTROL);
2529 DUMPREG(DISPC_CONFIG);
2530 DUMPREG(DISPC_CAPABLE);
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]2531 DUMPREG(DISPC_DEFAULT_COLOR(0));
2532 DUMPREG(DISPC_DEFAULT_COLOR(1));
2533 DUMPREG(DISPC_TRANS_COLOR(0));
2534 DUMPREG(DISPC_TRANS_COLOR(1));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2535 DUMPREG(DISPC_LINE_STATUS);
2536 DUMPREG(DISPC_LINE_NUMBER);
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]2537 DUMPREG(DISPC_TIMING_H(0));
2538 DUMPREG(DISPC_TIMING_V(0));
2539 DUMPREG(DISPC_POL_FREQ(0));
Murthy, Raghuveerce7fa5e2011-03-03 09:27:59 -0600[diff] [blame]2540 DUMPREG(DISPC_DIVISORo(0));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2541 DUMPREG(DISPC_GLOBAL_ALPHA);
2542 DUMPREG(DISPC_SIZE_DIG);
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]2543 DUMPREG(DISPC_SIZE_LCD(0));
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2544 if (dss_has_feature(FEAT_MGR_LCD2)) {
2545 DUMPREG(DISPC_CONTROL2);
2546 DUMPREG(DISPC_CONFIG2);
2547 DUMPREG(DISPC_DEFAULT_COLOR(2));
2548 DUMPREG(DISPC_TRANS_COLOR(2));
2549 DUMPREG(DISPC_TIMING_H(2));
2550 DUMPREG(DISPC_TIMING_V(2));
2551 DUMPREG(DISPC_POL_FREQ(2));
Murthy, Raghuveerce7fa5e2011-03-03 09:27:59 -0600[diff] [blame]2552 DUMPREG(DISPC_DIVISORo(2));
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2553 DUMPREG(DISPC_SIZE_LCD(2));
2554 }
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2555
2556 DUMPREG(DISPC_GFX_BA0);
2557 DUMPREG(DISPC_GFX_BA1);
2558 DUMPREG(DISPC_GFX_POSITION);
2559 DUMPREG(DISPC_GFX_SIZE);
2560 DUMPREG(DISPC_GFX_ATTRIBUTES);
2561 DUMPREG(DISPC_GFX_FIFO_THRESHOLD);
2562 DUMPREG(DISPC_GFX_FIFO_SIZE_STATUS);
2563 DUMPREG(DISPC_GFX_ROW_INC);
2564 DUMPREG(DISPC_GFX_PIXEL_INC);
2565 DUMPREG(DISPC_GFX_WINDOW_SKIP);
2566 DUMPREG(DISPC_GFX_TABLE_BA);
2567
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]2568 DUMPREG(DISPC_DATA_CYCLE1(0));
2569 DUMPREG(DISPC_DATA_CYCLE2(0));
2570 DUMPREG(DISPC_DATA_CYCLE3(0));
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2571
Sumit Semwal8613b002010-12-02 11:27:09 +0000[diff] [blame]2572 DUMPREG(DISPC_CPR_COEF_R(0));
2573 DUMPREG(DISPC_CPR_COEF_G(0));
2574 DUMPREG(DISPC_CPR_COEF_B(0));
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2575 if (dss_has_feature(FEAT_MGR_LCD2)) {
2576 DUMPREG(DISPC_DATA_CYCLE1(2));
2577 DUMPREG(DISPC_DATA_CYCLE2(2));
2578 DUMPREG(DISPC_DATA_CYCLE3(2));
2579
2580 DUMPREG(DISPC_CPR_COEF_R(2));
2581 DUMPREG(DISPC_CPR_COEF_G(2));
2582 DUMPREG(DISPC_CPR_COEF_B(2));
2583 }
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2584
2585 DUMPREG(DISPC_GFX_PRELOAD);
2586
2587 DUMPREG(DISPC_VID_BA0(0));
2588 DUMPREG(DISPC_VID_BA1(0));
2589 DUMPREG(DISPC_VID_POSITION(0));
2590 DUMPREG(DISPC_VID_SIZE(0));
2591 DUMPREG(DISPC_VID_ATTRIBUTES(0));
2592 DUMPREG(DISPC_VID_FIFO_THRESHOLD(0));
2593 DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(0));
2594 DUMPREG(DISPC_VID_ROW_INC(0));
2595 DUMPREG(DISPC_VID_PIXEL_INC(0));
2596 DUMPREG(DISPC_VID_FIR(0));
2597 DUMPREG(DISPC_VID_PICTURE_SIZE(0));
2598 DUMPREG(DISPC_VID_ACCU0(0));
2599 DUMPREG(DISPC_VID_ACCU1(0));
2600
2601 DUMPREG(DISPC_VID_BA0(1));
2602 DUMPREG(DISPC_VID_BA1(1));
2603 DUMPREG(DISPC_VID_POSITION(1));
2604 DUMPREG(DISPC_VID_SIZE(1));
2605 DUMPREG(DISPC_VID_ATTRIBUTES(1));
2606 DUMPREG(DISPC_VID_FIFO_THRESHOLD(1));
2607 DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(1));
2608 DUMPREG(DISPC_VID_ROW_INC(1));
2609 DUMPREG(DISPC_VID_PIXEL_INC(1));
2610 DUMPREG(DISPC_VID_FIR(1));
2611 DUMPREG(DISPC_VID_PICTURE_SIZE(1));
2612 DUMPREG(DISPC_VID_ACCU0(1));
2613 DUMPREG(DISPC_VID_ACCU1(1));
2614
2615 DUMPREG(DISPC_VID_FIR_COEF_H(0, 0));
2616 DUMPREG(DISPC_VID_FIR_COEF_H(0, 1));
2617 DUMPREG(DISPC_VID_FIR_COEF_H(0, 2));
2618 DUMPREG(DISPC_VID_FIR_COEF_H(0, 3));
2619 DUMPREG(DISPC_VID_FIR_COEF_H(0, 4));
2620 DUMPREG(DISPC_VID_FIR_COEF_H(0, 5));
2621 DUMPREG(DISPC_VID_FIR_COEF_H(0, 6));
2622 DUMPREG(DISPC_VID_FIR_COEF_H(0, 7));
2623 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 0));
2624 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 1));
2625 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 2));
2626 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 3));
2627 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 4));
2628 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 5));
2629 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 6));
2630 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 7));
2631 DUMPREG(DISPC_VID_CONV_COEF(0, 0));
2632 DUMPREG(DISPC_VID_CONV_COEF(0, 1));
2633 DUMPREG(DISPC_VID_CONV_COEF(0, 2));
2634 DUMPREG(DISPC_VID_CONV_COEF(0, 3));
2635 DUMPREG(DISPC_VID_CONV_COEF(0, 4));
2636 DUMPREG(DISPC_VID_FIR_COEF_V(0, 0));
2637 DUMPREG(DISPC_VID_FIR_COEF_V(0, 1));
2638 DUMPREG(DISPC_VID_FIR_COEF_V(0, 2));
2639 DUMPREG(DISPC_VID_FIR_COEF_V(0, 3));
2640 DUMPREG(DISPC_VID_FIR_COEF_V(0, 4));
2641 DUMPREG(DISPC_VID_FIR_COEF_V(0, 5));
2642 DUMPREG(DISPC_VID_FIR_COEF_V(0, 6));
2643 DUMPREG(DISPC_VID_FIR_COEF_V(0, 7));
2644
2645 DUMPREG(DISPC_VID_FIR_COEF_H(1, 0));
2646 DUMPREG(DISPC_VID_FIR_COEF_H(1, 1));
2647 DUMPREG(DISPC_VID_FIR_COEF_H(1, 2));
2648 DUMPREG(DISPC_VID_FIR_COEF_H(1, 3));
2649 DUMPREG(DISPC_VID_FIR_COEF_H(1, 4));
2650 DUMPREG(DISPC_VID_FIR_COEF_H(1, 5));
2651 DUMPREG(DISPC_VID_FIR_COEF_H(1, 6));
2652 DUMPREG(DISPC_VID_FIR_COEF_H(1, 7));
2653 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 0));
2654 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 1));
2655 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 2));
2656 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 3));
2657 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 4));
2658 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 5));
2659 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 6));
2660 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 7));
2661 DUMPREG(DISPC_VID_CONV_COEF(1, 0));
2662 DUMPREG(DISPC_VID_CONV_COEF(1, 1));
2663 DUMPREG(DISPC_VID_CONV_COEF(1, 2));
2664 DUMPREG(DISPC_VID_CONV_COEF(1, 3));
2665 DUMPREG(DISPC_VID_CONV_COEF(1, 4));
2666 DUMPREG(DISPC_VID_FIR_COEF_V(1, 0));
2667 DUMPREG(DISPC_VID_FIR_COEF_V(1, 1));
2668 DUMPREG(DISPC_VID_FIR_COEF_V(1, 2));
2669 DUMPREG(DISPC_VID_FIR_COEF_V(1, 3));
2670 DUMPREG(DISPC_VID_FIR_COEF_V(1, 4));
2671 DUMPREG(DISPC_VID_FIR_COEF_V(1, 5));
2672 DUMPREG(DISPC_VID_FIR_COEF_V(1, 6));
2673 DUMPREG(DISPC_VID_FIR_COEF_V(1, 7));
2674
2675 DUMPREG(DISPC_VID_PRELOAD(0));
2676 DUMPREG(DISPC_VID_PRELOAD(1));
2677
Archit Taneja6af9cd12011-01-31 16:27:44 +0000[diff] [blame]2678 dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2679#undef DUMPREG
2680}
2681
Sumit Semwalff1b2cd2010-12-02 11:27:11 +0000[diff] [blame]2682static void _dispc_set_pol_freq(enum omap_channel channel, bool onoff, bool rf,
2683 bool ieo, bool ipc, bool ihs, bool ivs, u8 acbi, u8 acb)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2684{
2685 u32 l = 0;
2686
2687 DSSDBG("onoff %d rf %d ieo %d ipc %d ihs %d ivs %d acbi %d acb %d\n",
2688 onoff, rf, ieo, ipc, ihs, ivs, acbi, acb);
2689
2690 l |= FLD_VAL(onoff, 17, 17);
2691 l |= FLD_VAL(rf, 16, 16);
2692 l |= FLD_VAL(ieo, 15, 15);
2693 l |= FLD_VAL(ipc, 14, 14);
2694 l |= FLD_VAL(ihs, 13, 13);
2695 l |= FLD_VAL(ivs, 12, 12);
2696 l |= FLD_VAL(acbi, 11, 8);
2697 l |= FLD_VAL(acb, 7, 0);
2698
2699 enable_clocks(1);
Sumit Semwalff1b2cd2010-12-02 11:27:11 +0000[diff] [blame]2700 dispc_write_reg(DISPC_POL_FREQ(channel), l);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2701 enable_clocks(0);
2702}
2703
Sumit Semwalff1b2cd2010-12-02 11:27:11 +0000[diff] [blame]2704void dispc_set_pol_freq(enum omap_channel channel,
2705 enum omap_panel_config config, u8 acbi, u8 acb)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2706{
Sumit Semwalff1b2cd2010-12-02 11:27:11 +0000[diff] [blame]2707 _dispc_set_pol_freq(channel, (config & OMAP_DSS_LCD_ONOFF) != 0,
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2708 (config & OMAP_DSS_LCD_RF) != 0,
2709 (config & OMAP_DSS_LCD_IEO) != 0,
2710 (config & OMAP_DSS_LCD_IPC) != 0,
2711 (config & OMAP_DSS_LCD_IHS) != 0,
2712 (config & OMAP_DSS_LCD_IVS) != 0,
2713 acbi, acb);
2714}
2715
2716/* with fck as input clock rate, find dispc dividers that produce req_pck */
2717void dispc_find_clk_divs(bool is_tft, unsigned long req_pck, unsigned long fck,
2718 struct dispc_clock_info *cinfo)
2719{
2720 u16 pcd_min = is_tft ? 2 : 3;
2721 unsigned long best_pck;
2722 u16 best_ld, cur_ld;
2723 u16 best_pd, cur_pd;
2724
2725 best_pck = 0;
2726 best_ld = 0;
2727 best_pd = 0;
2728
2729 for (cur_ld = 1; cur_ld <= 255; ++cur_ld) {
2730 unsigned long lck = fck / cur_ld;
2731
2732 for (cur_pd = pcd_min; cur_pd <= 255; ++cur_pd) {
2733 unsigned long pck = lck / cur_pd;
2734 long old_delta = abs(best_pck - req_pck);
2735 long new_delta = abs(pck - req_pck);
2736
2737 if (best_pck == 0 || new_delta < old_delta) {
2738 best_pck = pck;
2739 best_ld = cur_ld;
2740 best_pd = cur_pd;
2741
2742 if (pck == req_pck)
2743 goto found;
2744 }
2745
2746 if (pck < req_pck)
2747 break;
2748 }
2749
2750 if (lck / pcd_min < req_pck)
2751 break;
2752 }
2753
2754found:
2755 cinfo->lck_div = best_ld;
2756 cinfo->pck_div = best_pd;
2757 cinfo->lck = fck / cinfo->lck_div;
2758 cinfo->pck = cinfo->lck / cinfo->pck_div;
2759}
2760
2761/* calculate clock rates using dividers in cinfo */
2762int dispc_calc_clock_rates(unsigned long dispc_fclk_rate,
2763 struct dispc_clock_info *cinfo)
2764{
2765 if (cinfo->lck_div > 255 || cinfo->lck_div == 0)
2766 return -EINVAL;
2767 if (cinfo->pck_div < 2 || cinfo->pck_div > 255)
2768 return -EINVAL;
2769
2770 cinfo->lck = dispc_fclk_rate / cinfo->lck_div;
2771 cinfo->pck = cinfo->lck / cinfo->pck_div;
2772
2773 return 0;
2774}
2775
Sumit Semwalff1b2cd2010-12-02 11:27:11 +0000[diff] [blame]2776int dispc_set_clock_div(enum omap_channel channel,
2777 struct dispc_clock_info *cinfo)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2778{
2779 DSSDBG("lck = %lu (%u)\n", cinfo->lck, cinfo->lck_div);
2780 DSSDBG("pck = %lu (%u)\n", cinfo->pck, cinfo->pck_div);
2781
Sumit Semwalff1b2cd2010-12-02 11:27:11 +0000[diff] [blame]2782 dispc_set_lcd_divisor(channel, cinfo->lck_div, cinfo->pck_div);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2783
2784 return 0;
2785}
2786
Sumit Semwalff1b2cd2010-12-02 11:27:11 +0000[diff] [blame]2787int dispc_get_clock_div(enum omap_channel channel,
2788 struct dispc_clock_info *cinfo)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2789{
2790 unsigned long fck;
2791
2792 fck = dispc_fclk_rate();
2793
Murthy, Raghuveerce7fa5e2011-03-03 09:27:59 -0600[diff] [blame]2794 cinfo->lck_div = REG_GET(DISPC_DIVISORo(channel), 23, 16);
2795 cinfo->pck_div = REG_GET(DISPC_DIVISORo(channel), 7, 0);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2796
2797 cinfo->lck = fck / cinfo->lck_div;
2798 cinfo->pck = cinfo->lck / cinfo->pck_div;
2799
2800 return 0;
2801}
2802
2803/* dispc.irq_lock has to be locked by the caller */
2804static void _omap_dispc_set_irqs(void)
2805{
2806 u32 mask;
2807 u32 old_mask;
2808 int i;
2809 struct omap_dispc_isr_data *isr_data;
2810
2811 mask = dispc.irq_error_mask;
2812
2813 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
2814 isr_data = &dispc.registered_isr[i];
2815
2816 if (isr_data->isr == NULL)
2817 continue;
2818
2819 mask |= isr_data->mask;
2820 }
2821
2822 enable_clocks(1);
2823
2824 old_mask = dispc_read_reg(DISPC_IRQENABLE);
2825 /* clear the irqstatus for newly enabled irqs */
2826 dispc_write_reg(DISPC_IRQSTATUS, (mask ^ old_mask) & mask);
2827
2828 dispc_write_reg(DISPC_IRQENABLE, mask);
2829
2830 enable_clocks(0);
2831}
2832
2833int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
2834{
2835 int i;
2836 int ret;
2837 unsigned long flags;
2838 struct omap_dispc_isr_data *isr_data;
2839
2840 if (isr == NULL)
2841 return -EINVAL;
2842
2843 spin_lock_irqsave(&dispc.irq_lock, flags);
2844
2845 /* check for duplicate entry */
2846 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
2847 isr_data = &dispc.registered_isr[i];
2848 if (isr_data->isr == isr && isr_data->arg == arg &&
2849 isr_data->mask == mask) {
2850 ret = -EINVAL;
2851 goto err;
2852 }
2853 }
2854
2855 isr_data = NULL;
2856 ret = -EBUSY;
2857
2858 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
2859 isr_data = &dispc.registered_isr[i];
2860
2861 if (isr_data->isr != NULL)
2862 continue;
2863
2864 isr_data->isr = isr;
2865 isr_data->arg = arg;
2866 isr_data->mask = mask;
2867 ret = 0;
2868
2869 break;
2870 }
2871
Tomi Valkeinenb9cb0982011-03-04 18:19:54 +0200[diff] [blame]2872 if (ret)
2873 goto err;
2874
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2875 _omap_dispc_set_irqs();
2876
2877 spin_unlock_irqrestore(&dispc.irq_lock, flags);
2878
2879 return 0;
2880err:
2881 spin_unlock_irqrestore(&dispc.irq_lock, flags);
2882
2883 return ret;
2884}
2885EXPORT_SYMBOL(omap_dispc_register_isr);
2886
2887int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
2888{
2889 int i;
2890 unsigned long flags;
2891 int ret = -EINVAL;
2892 struct omap_dispc_isr_data *isr_data;
2893
2894 spin_lock_irqsave(&dispc.irq_lock, flags);
2895
2896 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
2897 isr_data = &dispc.registered_isr[i];
2898 if (isr_data->isr != isr || isr_data->arg != arg ||
2899 isr_data->mask != mask)
2900 continue;
2901
2902 /* found the correct isr */
2903
2904 isr_data->isr = NULL;
2905 isr_data->arg = NULL;
2906 isr_data->mask = 0;
2907
2908 ret = 0;
2909 break;
2910 }
2911
2912 if (ret == 0)
2913 _omap_dispc_set_irqs();
2914
2915 spin_unlock_irqrestore(&dispc.irq_lock, flags);
2916
2917 return ret;
2918}
2919EXPORT_SYMBOL(omap_dispc_unregister_isr);
2920
2921#ifdef DEBUG
2922static void print_irq_status(u32 status)
2923{
2924 if ((status & dispc.irq_error_mask) == 0)
2925 return;
2926
2927 printk(KERN_DEBUG "DISPC IRQ: 0x%x: ", status);
2928
2929#define PIS(x) \
2930 if (status & DISPC_IRQ_##x) \
2931 printk(#x " ");
2932 PIS(GFX_FIFO_UNDERFLOW);
2933 PIS(OCP_ERR);
2934 PIS(VID1_FIFO_UNDERFLOW);
2935 PIS(VID2_FIFO_UNDERFLOW);
2936 PIS(SYNC_LOST);
2937 PIS(SYNC_LOST_DIGIT);
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]2938 if (dss_has_feature(FEAT_MGR_LCD2))
2939 PIS(SYNC_LOST2);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2940#undef PIS
2941
2942 printk("\n");
2943}
2944#endif
2945
2946/* Called from dss.c. Note that we don't touch clocks here,
2947 * but we presume they are on because we got an IRQ. However,
2948 * an irq handler may turn the clocks off, so we may not have
2949 * clock later in the function. */
archit tanejaaffe3602011-02-23 08:41:03 +0000[diff] [blame]2950static irqreturn_t omap_dispc_irq_handler(int irq, void *arg)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2951{
2952 int i;
archit tanejaaffe3602011-02-23 08:41:03 +0000[diff] [blame]2953 u32 irqstatus, irqenable;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2954 u32 handledirqs = 0;
2955 u32 unhandled_errors;
2956 struct omap_dispc_isr_data *isr_data;
2957 struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS];
2958
2959 spin_lock(&dispc.irq_lock);
2960
2961 irqstatus = dispc_read_reg(DISPC_IRQSTATUS);
archit tanejaaffe3602011-02-23 08:41:03 +0000[diff] [blame]2962 irqenable = dispc_read_reg(DISPC_IRQENABLE);
2963
2964 /* IRQ is not for us */
2965 if (!(irqstatus & irqenable)) {
2966 spin_unlock(&dispc.irq_lock);
2967 return IRQ_NONE;
2968 }
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2969
Tomi Valkeinendfc0fd82009-12-17 14:35:21 +0200[diff] [blame]2970#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
2971 spin_lock(&dispc.irq_stats_lock);
2972 dispc.irq_stats.irq_count++;
2973 dss_collect_irq_stats(irqstatus, dispc.irq_stats.irqs);
2974 spin_unlock(&dispc.irq_stats_lock);
2975#endif
2976
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]2977#ifdef DEBUG
2978 if (dss_debug)
2979 print_irq_status(irqstatus);
2980#endif
2981 /* Ack the interrupt. Do it here before clocks are possibly turned
2982 * off */
2983 dispc_write_reg(DISPC_IRQSTATUS, irqstatus);
2984 /* flush posted write */
2985 dispc_read_reg(DISPC_IRQSTATUS);
2986
2987 /* make a copy and unlock, so that isrs can unregister
2988 * themselves */
2989 memcpy(registered_isr, dispc.registered_isr,
2990 sizeof(registered_isr));
2991
2992 spin_unlock(&dispc.irq_lock);
2993
2994 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
2995 isr_data = &registered_isr[i];
2996
2997 if (!isr_data->isr)
2998 continue;
2999
3000 if (isr_data->mask & irqstatus) {
3001 isr_data->isr(isr_data->arg, irqstatus);
3002 handledirqs |= isr_data->mask;
3003 }
3004 }
3005
3006 spin_lock(&dispc.irq_lock);
3007
3008 unhandled_errors = irqstatus & ~handledirqs & dispc.irq_error_mask;
3009
3010 if (unhandled_errors) {
3011 dispc.error_irqs |= unhandled_errors;
3012
3013 dispc.irq_error_mask &= ~unhandled_errors;
3014 _omap_dispc_set_irqs();
3015
3016 schedule_work(&dispc.error_work);
3017 }
3018
3019 spin_unlock(&dispc.irq_lock);
archit tanejaaffe3602011-02-23 08:41:03 +0000[diff] [blame]3020
3021 return IRQ_HANDLED;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3022}
3023
3024static void dispc_error_worker(struct work_struct *work)
3025{
3026 int i;
3027 u32 errors;
3028 unsigned long flags;
3029
3030 spin_lock_irqsave(&dispc.irq_lock, flags);
3031 errors = dispc.error_irqs;
3032 dispc.error_irqs = 0;
3033 spin_unlock_irqrestore(&dispc.irq_lock, flags);
3034
3035 if (errors & DISPC_IRQ_GFX_FIFO_UNDERFLOW) {
3036 DSSERR("GFX_FIFO_UNDERFLOW, disabling GFX\n");
3037 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
3038 struct omap_overlay *ovl;
3039 ovl = omap_dss_get_overlay(i);
3040
3041 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
3042 continue;
3043
3044 if (ovl->id == 0) {
3045 dispc_enable_plane(ovl->id, 0);
3046 dispc_go(ovl->manager->id);
3047 mdelay(50);
3048 break;
3049 }
3050 }
3051 }
3052
3053 if (errors & DISPC_IRQ_VID1_FIFO_UNDERFLOW) {
3054 DSSERR("VID1_FIFO_UNDERFLOW, disabling VID1\n");
3055 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
3056 struct omap_overlay *ovl;
3057 ovl = omap_dss_get_overlay(i);
3058
3059 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
3060 continue;
3061
3062 if (ovl->id == 1) {
3063 dispc_enable_plane(ovl->id, 0);
3064 dispc_go(ovl->manager->id);
3065 mdelay(50);
3066 break;
3067 }
3068 }
3069 }
3070
3071 if (errors & DISPC_IRQ_VID2_FIFO_UNDERFLOW) {
3072 DSSERR("VID2_FIFO_UNDERFLOW, disabling VID2\n");
3073 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
3074 struct omap_overlay *ovl;
3075 ovl = omap_dss_get_overlay(i);
3076
3077 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
3078 continue;
3079
3080 if (ovl->id == 2) {
3081 dispc_enable_plane(ovl->id, 0);
3082 dispc_go(ovl->manager->id);
3083 mdelay(50);
3084 break;
3085 }
3086 }
3087 }
3088
3089 if (errors & DISPC_IRQ_SYNC_LOST) {
3090 struct omap_overlay_manager *manager = NULL;
3091 bool enable = false;
3092
3093 DSSERR("SYNC_LOST, disabling LCD\n");
3094
3095 for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
3096 struct omap_overlay_manager *mgr;
3097 mgr = omap_dss_get_overlay_manager(i);
3098
3099 if (mgr->id == OMAP_DSS_CHANNEL_LCD) {
3100 manager = mgr;
3101 enable = mgr->device->state ==
3102 OMAP_DSS_DISPLAY_ACTIVE;
Tomi Valkeinen37ac60e2010-01-12 15:12:07 +0200[diff] [blame]3103 mgr->device->driver->disable(mgr->device);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3104 break;
3105 }
3106 }
3107
3108 if (manager) {
Tomi Valkeinen37ac60e2010-01-12 15:12:07 +0200[diff] [blame]3109 struct omap_dss_device *dssdev = manager->device;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3110 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
3111 struct omap_overlay *ovl;
3112 ovl = omap_dss_get_overlay(i);
3113
3114 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
3115 continue;
3116
3117 if (ovl->id != 0 && ovl->manager == manager)
3118 dispc_enable_plane(ovl->id, 0);
3119 }
3120
3121 dispc_go(manager->id);
3122 mdelay(50);
3123 if (enable)
Tomi Valkeinen37ac60e2010-01-12 15:12:07 +0200[diff] [blame]3124 dssdev->driver->enable(dssdev);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3125 }
3126 }
3127
3128 if (errors & DISPC_IRQ_SYNC_LOST_DIGIT) {
3129 struct omap_overlay_manager *manager = NULL;
3130 bool enable = false;
3131
3132 DSSERR("SYNC_LOST_DIGIT, disabling TV\n");
3133
3134 for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
3135 struct omap_overlay_manager *mgr;
3136 mgr = omap_dss_get_overlay_manager(i);
3137
3138 if (mgr->id == OMAP_DSS_CHANNEL_DIGIT) {
3139 manager = mgr;
3140 enable = mgr->device->state ==
3141 OMAP_DSS_DISPLAY_ACTIVE;
Tomi Valkeinen37ac60e2010-01-12 15:12:07 +0200[diff] [blame]3142 mgr->device->driver->disable(mgr->device);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3143 break;
3144 }
3145 }
3146
3147 if (manager) {
Tomi Valkeinen37ac60e2010-01-12 15:12:07 +0200[diff] [blame]3148 struct omap_dss_device *dssdev = manager->device;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3149 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
3150 struct omap_overlay *ovl;
3151 ovl = omap_dss_get_overlay(i);
3152
3153 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
3154 continue;
3155
3156 if (ovl->id != 0 && ovl->manager == manager)
3157 dispc_enable_plane(ovl->id, 0);
3158 }
3159
3160 dispc_go(manager->id);
3161 mdelay(50);
3162 if (enable)
Tomi Valkeinen37ac60e2010-01-12 15:12:07 +0200[diff] [blame]3163 dssdev->driver->enable(dssdev);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3164 }
3165 }
3166
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]3167 if (errors & DISPC_IRQ_SYNC_LOST2) {
3168 struct omap_overlay_manager *manager = NULL;
3169 bool enable = false;
3170
3171 DSSERR("SYNC_LOST for LCD2, disabling LCD2\n");
3172
3173 for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
3174 struct omap_overlay_manager *mgr;
3175 mgr = omap_dss_get_overlay_manager(i);
3176
3177 if (mgr->id == OMAP_DSS_CHANNEL_LCD2) {
3178 manager = mgr;
3179 enable = mgr->device->state ==
3180 OMAP_DSS_DISPLAY_ACTIVE;
3181 mgr->device->driver->disable(mgr->device);
3182 break;
3183 }
3184 }
3185
3186 if (manager) {
3187 struct omap_dss_device *dssdev = manager->device;
3188 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
3189 struct omap_overlay *ovl;
3190 ovl = omap_dss_get_overlay(i);
3191
3192 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
3193 continue;
3194
3195 if (ovl->id != 0 && ovl->manager == manager)
3196 dispc_enable_plane(ovl->id, 0);
3197 }
3198
3199 dispc_go(manager->id);
3200 mdelay(50);
3201 if (enable)
3202 dssdev->driver->enable(dssdev);
3203 }
3204 }
3205
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3206 if (errors & DISPC_IRQ_OCP_ERR) {
3207 DSSERR("OCP_ERR\n");
3208 for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
3209 struct omap_overlay_manager *mgr;
3210 mgr = omap_dss_get_overlay_manager(i);
3211
3212 if (mgr->caps & OMAP_DSS_OVL_CAP_DISPC)
Tomi Valkeinen37ac60e2010-01-12 15:12:07 +0200[diff] [blame]3213 mgr->device->driver->disable(mgr->device);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3214 }
3215 }
3216
3217 spin_lock_irqsave(&dispc.irq_lock, flags);
3218 dispc.irq_error_mask |= errors;
3219 _omap_dispc_set_irqs();
3220 spin_unlock_irqrestore(&dispc.irq_lock, flags);
3221}
3222
3223int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout)
3224{
3225 void dispc_irq_wait_handler(void *data, u32 mask)
3226 {
3227 complete((struct completion *)data);
3228 }
3229
3230 int r;
3231 DECLARE_COMPLETION_ONSTACK(completion);
3232
3233 r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion,
3234 irqmask);
3235
3236 if (r)
3237 return r;
3238
3239 timeout = wait_for_completion_timeout(&completion, timeout);
3240
3241 omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask);
3242
3243 if (timeout == 0)
3244 return -ETIMEDOUT;
3245
3246 if (timeout == -ERESTARTSYS)
3247 return -ERESTARTSYS;
3248
3249 return 0;
3250}
3251
3252int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
3253 unsigned long timeout)
3254{
3255 void dispc_irq_wait_handler(void *data, u32 mask)
3256 {
3257 complete((struct completion *)data);
3258 }
3259
3260 int r;
3261 DECLARE_COMPLETION_ONSTACK(completion);
3262
3263 r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion,
3264 irqmask);
3265
3266 if (r)
3267 return r;
3268
3269 timeout = wait_for_completion_interruptible_timeout(&completion,
3270 timeout);
3271
3272 omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask);
3273
3274 if (timeout == 0)
3275 return -ETIMEDOUT;
3276
3277 if (timeout == -ERESTARTSYS)
3278 return -ERESTARTSYS;
3279
3280 return 0;
3281}
3282
3283#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC
3284void dispc_fake_vsync_irq(void)
3285{
3286 u32 irqstatus = DISPC_IRQ_VSYNC;
3287 int i;
3288
Tomi Valkeinenab83b142010-06-09 15:31:01 +0300[diff] [blame]3289 WARN_ON(!in_interrupt());
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3290
3291 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
3292 struct omap_dispc_isr_data *isr_data;
3293 isr_data = &dispc.registered_isr[i];
3294
3295 if (!isr_data->isr)
3296 continue;
3297
3298 if (isr_data->mask & irqstatus)
3299 isr_data->isr(isr_data->arg, irqstatus);
3300 }
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3301}
3302#endif
3303
3304static void _omap_dispc_initialize_irq(void)
3305{
3306 unsigned long flags;
3307
3308 spin_lock_irqsave(&dispc.irq_lock, flags);
3309
3310 memset(dispc.registered_isr, 0, sizeof(dispc.registered_isr));
3311
3312 dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR;
Sumit Semwal2a205f32010-12-02 11:27:12 +0000[diff] [blame]3313 if (dss_has_feature(FEAT_MGR_LCD2))
3314 dispc.irq_error_mask |= DISPC_IRQ_SYNC_LOST2;
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3315
3316 /* there's SYNC_LOST_DIGIT waiting after enabling the DSS,
3317 * so clear it */
3318 dispc_write_reg(DISPC_IRQSTATUS, dispc_read_reg(DISPC_IRQSTATUS));
3319
3320 _omap_dispc_set_irqs();
3321
3322 spin_unlock_irqrestore(&dispc.irq_lock, flags);
3323}
3324
3325void dispc_enable_sidle(void)
3326{
3327 REG_FLD_MOD(DISPC_SYSCONFIG, 2, 4, 3); /* SIDLEMODE: smart idle */
3328}
3329
3330void dispc_disable_sidle(void)
3331{
3332 REG_FLD_MOD(DISPC_SYSCONFIG, 1, 4, 3); /* SIDLEMODE: no idle */
3333}
3334
3335static void _omap_dispc_initial_config(void)
3336{
3337 u32 l;
3338
3339 l = dispc_read_reg(DISPC_SYSCONFIG);
3340 l = FLD_MOD(l, 2, 13, 12); /* MIDLEMODE: smart standby */
3341 l = FLD_MOD(l, 2, 4, 3); /* SIDLEMODE: smart idle */
3342 l = FLD_MOD(l, 1, 2, 2); /* ENWAKEUP */
3343 l = FLD_MOD(l, 1, 0, 0); /* AUTOIDLE */
3344 dispc_write_reg(DISPC_SYSCONFIG, l);
3345
Murthy, Raghuveer0cf35df2011-03-03 09:28:00 -0600[diff] [blame]3346 /* Exclusively enable DISPC_CORE_CLK and set divider to 1 */
3347 if (dss_has_feature(FEAT_CORE_CLK_DIV)) {
3348 l = dispc_read_reg(DISPC_DIVISOR);
3349 /* Use DISPC_DIVISOR.LCD, instead of DISPC_DIVISOR1.LCD */
3350 l = FLD_MOD(l, 1, 0, 0);
3351 l = FLD_MOD(l, 1, 23, 16);
3352 dispc_write_reg(DISPC_DIVISOR, l);
3353 }
3354
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3355 /* FUNCGATED */
Archit Taneja6ced40b2010-12-02 11:27:13 +0000[diff] [blame]3356 if (dss_has_feature(FEAT_FUNCGATED))
3357 REG_FLD_MOD(DISPC_CONFIG, 1, 9, 9);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3358
3359 /* L3 firewall setting: enable access to OCM RAM */
3360 /* XXX this should be somewhere in plat-omap */
3361 if (cpu_is_omap24xx())
3362 __raw_writel(0x402000b0, OMAP2_L3_IO_ADDRESS(0x680050a0));
3363
3364 _dispc_setup_color_conv_coef();
3365
3366 dispc_set_loadmode(OMAP_DSS_LOAD_FRAME_ONLY);
3367
3368 dispc_read_plane_fifo_sizes();
3369}
3370
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3371int dispc_enable_plane(enum omap_plane plane, bool enable)
3372{
3373 DSSDBG("dispc_enable_plane %d, %d\n", plane, enable);
3374
3375 enable_clocks(1);
3376 _dispc_enable_plane(plane, enable);
3377 enable_clocks(0);
3378
3379 return 0;
3380}
3381
3382int dispc_setup_plane(enum omap_plane plane,
3383 u32 paddr, u16 screen_width,
3384 u16 pos_x, u16 pos_y,
3385 u16 width, u16 height,
3386 u16 out_width, u16 out_height,
3387 enum omap_color_mode color_mode,
3388 bool ilace,
3389 enum omap_dss_rotation_type rotation_type,
Rajkumar Nfd28a392010-11-04 12:28:42 +0100[diff] [blame]3390 u8 rotation, bool mirror, u8 global_alpha,
Sumit Semwal18faa1b2010-12-02 11:27:14 +0000[diff] [blame]3391 u8 pre_mult_alpha, enum omap_channel channel)
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3392{
3393 int r = 0;
3394
3395 DSSDBG("dispc_setup_plane %d, pa %x, sw %d, %d,%d, %dx%d -> "
Sumit Semwal18faa1b2010-12-02 11:27:14 +0000[diff] [blame]3396 "%dx%d, ilace %d, cmode %x, rot %d, mir %d chan %d\n",
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3397 plane, paddr, screen_width, pos_x, pos_y,
3398 width, height,
3399 out_width, out_height,
3400 ilace, color_mode,
Sumit Semwal18faa1b2010-12-02 11:27:14 +0000[diff] [blame]3401 rotation, mirror, channel);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3402
3403 enable_clocks(1);
3404
3405 r = _dispc_setup_plane(plane,
3406 paddr, screen_width,
3407 pos_x, pos_y,
3408 width, height,
3409 out_width, out_height,
3410 color_mode, ilace,
3411 rotation_type,
3412 rotation, mirror,
Rajkumar Nfd28a392010-11-04 12:28:42 +0100[diff] [blame]3413 global_alpha,
Sumit Semwal18faa1b2010-12-02 11:27:14 +0000[diff] [blame]3414 pre_mult_alpha, channel);
Tomi Valkeinen80c39712009-11-12 11:41:42 +0200[diff] [blame]3415
3416 enable_clocks(0);
3417
3418 return r;
3419}
Senthilvadivu Guruswamy060b6d92011-01-24 06:22:00 +0000[diff] [blame]3420
3421/* DISPC HW IP initialisation */
3422static int omap_dispchw_probe(struct platform_device *pdev)
3423{
3424 u32 rev;
archit tanejaaffe3602011-02-23 08:41:03 +0000[diff] [blame]3425 int r = 0;
Senthilvadivu Guruswamyea9da362011-01-24 06:22:04 +0000[diff] [blame]3426 struct resource *dispc_mem;
3427
Senthilvadivu Guruswamy060b6d92011-01-24 06:22:00 +0000[diff] [blame]3428 dispc.pdev = pdev;
3429
3430 spin_lock_init(&dispc.irq_lock);
3431
3432#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
3433 spin_lock_init(&dispc.irq_stats_lock);
3434 dispc.irq_stats.last_reset = jiffies;
3435#endif
3436
3437 INIT_WORK(&dispc.error_work, dispc_error_worker);
3438
Senthilvadivu Guruswamyea9da362011-01-24 06:22:04 +0000[diff] [blame]3439 dispc_mem = platform_get_resource(dispc.pdev, IORESOURCE_MEM, 0);
3440 if (!dispc_mem) {
3441 DSSERR("can't get IORESOURCE_MEM DISPC\n");
archit tanejaaffe3602011-02-23 08:41:03 +0000[diff] [blame]3442 r = -EINVAL;
3443 goto fail0;
Senthilvadivu Guruswamyea9da362011-01-24 06:22:04 +0000[diff] [blame]3444 }
3445 dispc.base = ioremap(dispc_mem->start, resource_size(dispc_mem));
Senthilvadivu Guruswamy060b6d92011-01-24 06:22:00 +0000[diff] [blame]3446 if (!dispc.base) {
3447 DSSERR("can't ioremap DISPC\n");
archit tanejaaffe3602011-02-23 08:41:03 +0000[diff] [blame]3448 r = -ENOMEM;
3449 goto fail0;
3450 }
3451 dispc.irq = platform_get_irq(dispc.pdev, 0);
3452 if (dispc.irq < 0) {
3453 DSSERR("platform_get_irq failed\n");
3454 r = -ENODEV;
3455 goto fail1;
3456 }
3457
3458 r = request_irq(dispc.irq, omap_dispc_irq_handler, IRQF_SHARED,
3459 "OMAP DISPC", dispc.pdev);
3460 if (r < 0) {
3461 DSSERR("request_irq failed\n");
3462 goto fail1;
Senthilvadivu Guruswamy060b6d92011-01-24 06:22:00 +0000[diff] [blame]3463 }
3464
3465 enable_clocks(1);
3466
3467 _omap_dispc_initial_config();
3468
3469 _omap_dispc_initialize_irq();
3470
3471 dispc_save_context();
3472
3473 rev = dispc_read_reg(DISPC_REVISION);
Sumit Semwala06b62f2011-01-24 06:22:03 +0000[diff] [blame]3474 dev_dbg(&pdev->dev, "OMAP DISPC rev %d.%d\n",
Senthilvadivu Guruswamy060b6d92011-01-24 06:22:00 +0000[diff] [blame]3475 FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
3476
3477 enable_clocks(0);
3478
3479 return 0;
archit tanejaaffe3602011-02-23 08:41:03 +0000[diff] [blame]3480fail1:
3481 iounmap(dispc.base);
3482fail0:
3483 return r;
Senthilvadivu Guruswamy060b6d92011-01-24 06:22:00 +0000[diff] [blame]3484}
3485
3486static int omap_dispchw_remove(struct platform_device *pdev)
3487{
archit tanejaaffe3602011-02-23 08:41:03 +0000[diff] [blame]3488 free_irq(dispc.irq, dispc.pdev);
Senthilvadivu Guruswamy060b6d92011-01-24 06:22:00 +0000[diff] [blame]3489 iounmap(dispc.base);
3490 return 0;
3491}
3492
3493static struct platform_driver omap_dispchw_driver = {
3494 .probe = omap_dispchw_probe,
3495 .remove = omap_dispchw_remove,
3496 .driver = {
3497 .name = "omapdss_dispc",
3498 .owner = THIS_MODULE,
3499 },
3500};
3501
3502int dispc_init_platform_driver(void)
3503{
3504 return platform_driver_register(&omap_dispchw_driver);
3505}
3506
3507void dispc_uninit_platform_driver(void)
3508{
3509 return platform_driver_unregister(&omap_dispchw_driver);
3510}