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Commit | Line | Data |
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cfb4f5d1 MD |
1 | /* |
2 | * SuperH Mobile LCDC Framebuffer | |
3 | * | |
4 | * Copyright (c) 2008 Magnus Damm | |
5 | * | |
6 | * This file is subject to the terms and conditions of the GNU General Public | |
7 | * License. See the file "COPYING" in the main directory of this archive | |
8 | * for more details. | |
9 | */ | |
10 | ||
f1f60b5f LP |
11 | #include <linux/atomic.h> |
12 | #include <linux/backlight.h> | |
cfb4f5d1 | 13 | #include <linux/clk.h> |
f1f60b5f | 14 | #include <linux/console.h> |
c5deac3c | 15 | #include <linux/ctype.h> |
cfb4f5d1 | 16 | #include <linux/dma-mapping.h> |
f1f60b5f LP |
17 | #include <linux/delay.h> |
18 | #include <linux/gpio.h> | |
19 | #include <linux/init.h> | |
8564557a | 20 | #include <linux/interrupt.h> |
40331b21 | 21 | #include <linux/ioctl.h> |
f1f60b5f LP |
22 | #include <linux/kernel.h> |
23 | #include <linux/mm.h> | |
355b200b | 24 | #include <linux/module.h> |
f1f60b5f LP |
25 | #include <linux/platform_device.h> |
26 | #include <linux/pm_runtime.h> | |
27 | #include <linux/slab.h> | |
28 | #include <linux/videodev2.h> | |
29 | #include <linux/vmalloc.h> | |
30 | ||
225c9a8d | 31 | #include <video/sh_mobile_lcdc.h> |
8a20974f | 32 | #include <video/sh_mobile_meram.h> |
cfb4f5d1 | 33 | |
6de9edd5 GL |
34 | #include "sh_mobile_lcdcfb.h" |
35 | ||
c5deac3c LP |
36 | /* ---------------------------------------------------------------------------- |
37 | * Overlay register definitions | |
38 | */ | |
39 | ||
40 | #define LDBCR 0xb00 | |
41 | #define LDBCR_UPC(n) (1 << ((n) + 16)) | |
42 | #define LDBCR_UPF(n) (1 << ((n) + 8)) | |
43 | #define LDBCR_UPD(n) (1 << ((n) + 0)) | |
44 | #define LDBnBSIFR(n) (0xb20 + (n) * 0x20 + 0x00) | |
45 | #define LDBBSIFR_EN (1 << 31) | |
46 | #define LDBBSIFR_VS (1 << 29) | |
47 | #define LDBBSIFR_BRSEL (1 << 28) | |
48 | #define LDBBSIFR_MX (1 << 27) | |
49 | #define LDBBSIFR_MY (1 << 26) | |
50 | #define LDBBSIFR_CV3 (3 << 24) | |
51 | #define LDBBSIFR_CV2 (2 << 24) | |
52 | #define LDBBSIFR_CV1 (1 << 24) | |
53 | #define LDBBSIFR_CV0 (0 << 24) | |
54 | #define LDBBSIFR_CV_MASK (3 << 24) | |
55 | #define LDBBSIFR_LAY_MASK (0xff << 16) | |
56 | #define LDBBSIFR_LAY_SHIFT 16 | |
57 | #define LDBBSIFR_ROP3_MASK (0xff << 16) | |
58 | #define LDBBSIFR_ROP3_SHIFT 16 | |
59 | #define LDBBSIFR_AL_PL8 (3 << 14) | |
60 | #define LDBBSIFR_AL_PL1 (2 << 14) | |
61 | #define LDBBSIFR_AL_PK (1 << 14) | |
62 | #define LDBBSIFR_AL_1 (0 << 14) | |
63 | #define LDBBSIFR_AL_MASK (3 << 14) | |
64 | #define LDBBSIFR_SWPL (1 << 10) | |
65 | #define LDBBSIFR_SWPW (1 << 9) | |
66 | #define LDBBSIFR_SWPB (1 << 8) | |
67 | #define LDBBSIFR_RY (1 << 7) | |
68 | #define LDBBSIFR_CHRR_420 (2 << 0) | |
69 | #define LDBBSIFR_CHRR_422 (1 << 0) | |
70 | #define LDBBSIFR_CHRR_444 (0 << 0) | |
71 | #define LDBBSIFR_RPKF_ARGB32 (0x00 << 0) | |
72 | #define LDBBSIFR_RPKF_RGB16 (0x03 << 0) | |
73 | #define LDBBSIFR_RPKF_RGB24 (0x0b << 0) | |
74 | #define LDBBSIFR_RPKF_MASK (0x1f << 0) | |
75 | #define LDBnBSSZR(n) (0xb20 + (n) * 0x20 + 0x04) | |
76 | #define LDBBSSZR_BVSS_MASK (0xfff << 16) | |
77 | #define LDBBSSZR_BVSS_SHIFT 16 | |
78 | #define LDBBSSZR_BHSS_MASK (0xfff << 0) | |
79 | #define LDBBSSZR_BHSS_SHIFT 0 | |
80 | #define LDBnBLOCR(n) (0xb20 + (n) * 0x20 + 0x08) | |
81 | #define LDBBLOCR_CVLC_MASK (0xfff << 16) | |
82 | #define LDBBLOCR_CVLC_SHIFT 16 | |
83 | #define LDBBLOCR_CHLC_MASK (0xfff << 0) | |
84 | #define LDBBLOCR_CHLC_SHIFT 0 | |
85 | #define LDBnBSMWR(n) (0xb20 + (n) * 0x20 + 0x0c) | |
86 | #define LDBBSMWR_BSMWA_MASK (0xffff << 16) | |
87 | #define LDBBSMWR_BSMWA_SHIFT 16 | |
88 | #define LDBBSMWR_BSMW_MASK (0xffff << 0) | |
89 | #define LDBBSMWR_BSMW_SHIFT 0 | |
90 | #define LDBnBSAYR(n) (0xb20 + (n) * 0x20 + 0x10) | |
91 | #define LDBBSAYR_FG1A_MASK (0xff << 24) | |
92 | #define LDBBSAYR_FG1A_SHIFT 24 | |
93 | #define LDBBSAYR_FG1R_MASK (0xff << 16) | |
94 | #define LDBBSAYR_FG1R_SHIFT 16 | |
95 | #define LDBBSAYR_FG1G_MASK (0xff << 8) | |
96 | #define LDBBSAYR_FG1G_SHIFT 8 | |
97 | #define LDBBSAYR_FG1B_MASK (0xff << 0) | |
98 | #define LDBBSAYR_FG1B_SHIFT 0 | |
99 | #define LDBnBSACR(n) (0xb20 + (n) * 0x20 + 0x14) | |
100 | #define LDBBSACR_FG2A_MASK (0xff << 24) | |
101 | #define LDBBSACR_FG2A_SHIFT 24 | |
102 | #define LDBBSACR_FG2R_MASK (0xff << 16) | |
103 | #define LDBBSACR_FG2R_SHIFT 16 | |
104 | #define LDBBSACR_FG2G_MASK (0xff << 8) | |
105 | #define LDBBSACR_FG2G_SHIFT 8 | |
106 | #define LDBBSACR_FG2B_MASK (0xff << 0) | |
107 | #define LDBBSACR_FG2B_SHIFT 0 | |
108 | #define LDBnBSAAR(n) (0xb20 + (n) * 0x20 + 0x18) | |
109 | #define LDBBSAAR_AP_MASK (0xff << 24) | |
110 | #define LDBBSAAR_AP_SHIFT 24 | |
111 | #define LDBBSAAR_R_MASK (0xff << 16) | |
112 | #define LDBBSAAR_R_SHIFT 16 | |
113 | #define LDBBSAAR_GY_MASK (0xff << 8) | |
114 | #define LDBBSAAR_GY_SHIFT 8 | |
115 | #define LDBBSAAR_B_MASK (0xff << 0) | |
116 | #define LDBBSAAR_B_SHIFT 0 | |
117 | #define LDBnBPPCR(n) (0xb20 + (n) * 0x20 + 0x1c) | |
118 | #define LDBBPPCR_AP_MASK (0xff << 24) | |
119 | #define LDBBPPCR_AP_SHIFT 24 | |
120 | #define LDBBPPCR_R_MASK (0xff << 16) | |
121 | #define LDBBPPCR_R_SHIFT 16 | |
122 | #define LDBBPPCR_GY_MASK (0xff << 8) | |
123 | #define LDBBPPCR_GY_SHIFT 8 | |
124 | #define LDBBPPCR_B_MASK (0xff << 0) | |
125 | #define LDBBPPCR_B_SHIFT 0 | |
126 | #define LDBnBBGCL(n) (0xb10 + (n) * 0x04) | |
127 | #define LDBBBGCL_BGA_MASK (0xff << 24) | |
128 | #define LDBBBGCL_BGA_SHIFT 24 | |
129 | #define LDBBBGCL_BGR_MASK (0xff << 16) | |
130 | #define LDBBBGCL_BGR_SHIFT 16 | |
131 | #define LDBBBGCL_BGG_MASK (0xff << 8) | |
132 | #define LDBBBGCL_BGG_SHIFT 8 | |
133 | #define LDBBBGCL_BGB_MASK (0xff << 0) | |
134 | #define LDBBBGCL_BGB_SHIFT 0 | |
135 | ||
a6f15ade PE |
136 | #define SIDE_B_OFFSET 0x1000 |
137 | #define MIRROR_OFFSET 0x2000 | |
cfb4f5d1 | 138 | |
d2ecbab5 GL |
139 | #define MAX_XRES 1920 |
140 | #define MAX_YRES 1080 | |
cfb4f5d1 | 141 | |
c5deac3c LP |
142 | enum sh_mobile_lcdc_overlay_mode { |
143 | LCDC_OVERLAY_BLEND, | |
144 | LCDC_OVERLAY_ROP3, | |
145 | }; | |
146 | ||
147 | /* | |
148 | * struct sh_mobile_lcdc_overlay - LCDC display overlay | |
149 | * | |
150 | * @channel: LCDC channel this overlay belongs to | |
151 | * @cfg: Overlay configuration | |
152 | * @info: Frame buffer device | |
153 | * @index: Overlay index (0-3) | |
154 | * @base: Overlay registers base address | |
155 | * @enabled: True if the overlay is enabled | |
156 | * @mode: Overlay blending mode (alpha blend or ROP3) | |
157 | * @alpha: Global alpha blending value (0-255, for alpha blending mode) | |
158 | * @rop3: Raster operation (for ROP3 mode) | |
159 | * @fb_mem: Frame buffer virtual memory address | |
160 | * @fb_size: Frame buffer size in bytes | |
161 | * @dma_handle: Frame buffer DMA address | |
162 | * @base_addr_y: Overlay base address (RGB or luma component) | |
163 | * @base_addr_c: Overlay base address (chroma component) | |
164 | * @pan_offset: Current pan offset in bytes | |
165 | * @format: Current pixelf format | |
166 | * @xres: Horizontal visible resolution | |
167 | * @xres_virtual: Horizontal total resolution | |
168 | * @yres: Vertical visible resolution | |
169 | * @yres_virtual: Vertical total resolution | |
170 | * @pitch: Overlay line pitch | |
171 | * @pos_x: Horizontal overlay position | |
172 | * @pos_y: Vertical overlay position | |
173 | */ | |
174 | struct sh_mobile_lcdc_overlay { | |
175 | struct sh_mobile_lcdc_chan *channel; | |
176 | ||
177 | const struct sh_mobile_lcdc_overlay_cfg *cfg; | |
178 | struct fb_info *info; | |
179 | ||
180 | unsigned int index; | |
181 | unsigned long base; | |
182 | ||
183 | bool enabled; | |
184 | enum sh_mobile_lcdc_overlay_mode mode; | |
185 | unsigned int alpha; | |
186 | unsigned int rop3; | |
187 | ||
188 | void *fb_mem; | |
189 | unsigned long fb_size; | |
190 | ||
191 | dma_addr_t dma_handle; | |
192 | unsigned long base_addr_y; | |
193 | unsigned long base_addr_c; | |
194 | unsigned long pan_offset; | |
195 | ||
196 | const struct sh_mobile_lcdc_format_info *format; | |
197 | unsigned int xres; | |
198 | unsigned int xres_virtual; | |
199 | unsigned int yres; | |
200 | unsigned int yres_virtual; | |
201 | unsigned int pitch; | |
202 | int pos_x; | |
203 | int pos_y; | |
204 | }; | |
205 | ||
f1f60b5f LP |
206 | struct sh_mobile_lcdc_priv { |
207 | void __iomem *base; | |
208 | int irq; | |
209 | atomic_t hw_usecnt; | |
210 | struct device *dev; | |
211 | struct clk *dot_clk; | |
212 | unsigned long lddckr; | |
c5deac3c | 213 | |
f1f60b5f | 214 | struct sh_mobile_lcdc_chan ch[2]; |
c5deac3c LP |
215 | struct sh_mobile_lcdc_overlay overlays[4]; |
216 | ||
f1f60b5f LP |
217 | struct notifier_block notifier; |
218 | int started; | |
219 | int forced_fourcc; /* 2 channel LCDC must share fourcc setting */ | |
220 | struct sh_mobile_meram_info *meram_dev; | |
221 | }; | |
222 | ||
223 | /* ----------------------------------------------------------------------------- | |
224 | * Registers access | |
225 | */ | |
226 | ||
0246c471 | 227 | static unsigned long lcdc_offs_mainlcd[NR_CH_REGS] = { |
cfb4f5d1 MD |
228 | [LDDCKPAT1R] = 0x400, |
229 | [LDDCKPAT2R] = 0x404, | |
230 | [LDMT1R] = 0x418, | |
231 | [LDMT2R] = 0x41c, | |
232 | [LDMT3R] = 0x420, | |
233 | [LDDFR] = 0x424, | |
234 | [LDSM1R] = 0x428, | |
8564557a | 235 | [LDSM2R] = 0x42c, |
cfb4f5d1 | 236 | [LDSA1R] = 0x430, |
53b50314 | 237 | [LDSA2R] = 0x434, |
cfb4f5d1 MD |
238 | [LDMLSR] = 0x438, |
239 | [LDHCNR] = 0x448, | |
240 | [LDHSYNR] = 0x44c, | |
241 | [LDVLNR] = 0x450, | |
242 | [LDVSYNR] = 0x454, | |
243 | [LDPMR] = 0x460, | |
6011bdea | 244 | [LDHAJR] = 0x4a0, |
cfb4f5d1 MD |
245 | }; |
246 | ||
0246c471 | 247 | static unsigned long lcdc_offs_sublcd[NR_CH_REGS] = { |
cfb4f5d1 MD |
248 | [LDDCKPAT1R] = 0x408, |
249 | [LDDCKPAT2R] = 0x40c, | |
250 | [LDMT1R] = 0x600, | |
251 | [LDMT2R] = 0x604, | |
252 | [LDMT3R] = 0x608, | |
253 | [LDDFR] = 0x60c, | |
254 | [LDSM1R] = 0x610, | |
8564557a | 255 | [LDSM2R] = 0x614, |
cfb4f5d1 MD |
256 | [LDSA1R] = 0x618, |
257 | [LDMLSR] = 0x620, | |
258 | [LDHCNR] = 0x624, | |
259 | [LDHSYNR] = 0x628, | |
260 | [LDVLNR] = 0x62c, | |
261 | [LDVSYNR] = 0x630, | |
262 | [LDPMR] = 0x63c, | |
263 | }; | |
264 | ||
a6f15ade PE |
265 | static bool banked(int reg_nr) |
266 | { | |
267 | switch (reg_nr) { | |
268 | case LDMT1R: | |
269 | case LDMT2R: | |
270 | case LDMT3R: | |
271 | case LDDFR: | |
272 | case LDSM1R: | |
273 | case LDSA1R: | |
53b50314 | 274 | case LDSA2R: |
a6f15ade PE |
275 | case LDMLSR: |
276 | case LDHCNR: | |
277 | case LDHSYNR: | |
278 | case LDVLNR: | |
279 | case LDVSYNR: | |
280 | return true; | |
281 | } | |
282 | return false; | |
283 | } | |
284 | ||
f1f60b5f LP |
285 | static int lcdc_chan_is_sublcd(struct sh_mobile_lcdc_chan *chan) |
286 | { | |
b5ef967d | 287 | return chan->cfg->chan == LCDC_CHAN_SUBLCD; |
f1f60b5f LP |
288 | } |
289 | ||
cfb4f5d1 MD |
290 | static void lcdc_write_chan(struct sh_mobile_lcdc_chan *chan, |
291 | int reg_nr, unsigned long data) | |
292 | { | |
293 | iowrite32(data, chan->lcdc->base + chan->reg_offs[reg_nr]); | |
a6f15ade PE |
294 | if (banked(reg_nr)) |
295 | iowrite32(data, chan->lcdc->base + chan->reg_offs[reg_nr] + | |
296 | SIDE_B_OFFSET); | |
297 | } | |
298 | ||
299 | static void lcdc_write_chan_mirror(struct sh_mobile_lcdc_chan *chan, | |
300 | int reg_nr, unsigned long data) | |
301 | { | |
302 | iowrite32(data, chan->lcdc->base + chan->reg_offs[reg_nr] + | |
303 | MIRROR_OFFSET); | |
cfb4f5d1 MD |
304 | } |
305 | ||
306 | static unsigned long lcdc_read_chan(struct sh_mobile_lcdc_chan *chan, | |
307 | int reg_nr) | |
308 | { | |
309 | return ioread32(chan->lcdc->base + chan->reg_offs[reg_nr]); | |
310 | } | |
311 | ||
c5deac3c LP |
312 | static void lcdc_write_overlay(struct sh_mobile_lcdc_overlay *ovl, |
313 | int reg, unsigned long data) | |
314 | { | |
315 | iowrite32(data, ovl->channel->lcdc->base + reg); | |
316 | iowrite32(data, ovl->channel->lcdc->base + reg + SIDE_B_OFFSET); | |
317 | } | |
318 | ||
cfb4f5d1 MD |
319 | static void lcdc_write(struct sh_mobile_lcdc_priv *priv, |
320 | unsigned long reg_offs, unsigned long data) | |
321 | { | |
322 | iowrite32(data, priv->base + reg_offs); | |
323 | } | |
324 | ||
325 | static unsigned long lcdc_read(struct sh_mobile_lcdc_priv *priv, | |
326 | unsigned long reg_offs) | |
327 | { | |
328 | return ioread32(priv->base + reg_offs); | |
329 | } | |
330 | ||
331 | static void lcdc_wait_bit(struct sh_mobile_lcdc_priv *priv, | |
332 | unsigned long reg_offs, | |
333 | unsigned long mask, unsigned long until) | |
334 | { | |
335 | while ((lcdc_read(priv, reg_offs) & mask) != until) | |
336 | cpu_relax(); | |
337 | } | |
338 | ||
f1f60b5f LP |
339 | /* ----------------------------------------------------------------------------- |
340 | * Clock management | |
341 | */ | |
342 | ||
343 | static void sh_mobile_lcdc_clk_on(struct sh_mobile_lcdc_priv *priv) | |
cfb4f5d1 | 344 | { |
f1f60b5f LP |
345 | if (atomic_inc_and_test(&priv->hw_usecnt)) { |
346 | if (priv->dot_clk) | |
347 | clk_enable(priv->dot_clk); | |
348 | pm_runtime_get_sync(priv->dev); | |
349 | if (priv->meram_dev && priv->meram_dev->pdev) | |
350 | pm_runtime_get_sync(&priv->meram_dev->pdev->dev); | |
351 | } | |
cfb4f5d1 MD |
352 | } |
353 | ||
f1f60b5f LP |
354 | static void sh_mobile_lcdc_clk_off(struct sh_mobile_lcdc_priv *priv) |
355 | { | |
356 | if (atomic_sub_return(1, &priv->hw_usecnt) == -1) { | |
357 | if (priv->meram_dev && priv->meram_dev->pdev) | |
358 | pm_runtime_put_sync(&priv->meram_dev->pdev->dev); | |
359 | pm_runtime_put(priv->dev); | |
360 | if (priv->dot_clk) | |
361 | clk_disable(priv->dot_clk); | |
362 | } | |
363 | } | |
364 | ||
0a7f17aa LP |
365 | static int sh_mobile_lcdc_setup_clocks(struct sh_mobile_lcdc_priv *priv, |
366 | int clock_source) | |
f1f60b5f | 367 | { |
4774c12a | 368 | struct clk *clk; |
f1f60b5f LP |
369 | char *str; |
370 | ||
371 | switch (clock_source) { | |
372 | case LCDC_CLK_BUS: | |
373 | str = "bus_clk"; | |
374 | priv->lddckr = LDDCKR_ICKSEL_BUS; | |
375 | break; | |
376 | case LCDC_CLK_PERIPHERAL: | |
377 | str = "peripheral_clk"; | |
378 | priv->lddckr = LDDCKR_ICKSEL_MIPI; | |
379 | break; | |
380 | case LCDC_CLK_EXTERNAL: | |
381 | str = NULL; | |
382 | priv->lddckr = LDDCKR_ICKSEL_HDMI; | |
383 | break; | |
384 | default: | |
385 | return -EINVAL; | |
386 | } | |
387 | ||
4774c12a LP |
388 | if (str == NULL) |
389 | return 0; | |
390 | ||
0a7f17aa | 391 | clk = clk_get(priv->dev, str); |
4774c12a | 392 | if (IS_ERR(clk)) { |
0a7f17aa | 393 | dev_err(priv->dev, "cannot get dot clock %s\n", str); |
4774c12a | 394 | return PTR_ERR(clk); |
f1f60b5f LP |
395 | } |
396 | ||
4774c12a | 397 | priv->dot_clk = clk; |
f1f60b5f LP |
398 | return 0; |
399 | } | |
400 | ||
401 | /* ----------------------------------------------------------------------------- | |
37c5dcc2 | 402 | * Display, panel and deferred I/O |
f1f60b5f LP |
403 | */ |
404 | ||
cfb4f5d1 MD |
405 | static void lcdc_sys_write_index(void *handle, unsigned long data) |
406 | { | |
407 | struct sh_mobile_lcdc_chan *ch = handle; | |
408 | ||
ce1c0b08 LP |
409 | lcdc_write(ch->lcdc, _LDDWD0R, data | LDDWDxR_WDACT); |
410 | lcdc_wait_bit(ch->lcdc, _LDSR, LDSR_AS, 0); | |
411 | lcdc_write(ch->lcdc, _LDDWAR, LDDWAR_WA | | |
412 | (lcdc_chan_is_sublcd(ch) ? 2 : 0)); | |
413 | lcdc_wait_bit(ch->lcdc, _LDSR, LDSR_AS, 0); | |
cfb4f5d1 MD |
414 | } |
415 | ||
416 | static void lcdc_sys_write_data(void *handle, unsigned long data) | |
417 | { | |
418 | struct sh_mobile_lcdc_chan *ch = handle; | |
419 | ||
ce1c0b08 LP |
420 | lcdc_write(ch->lcdc, _LDDWD0R, data | LDDWDxR_WDACT | LDDWDxR_RSW); |
421 | lcdc_wait_bit(ch->lcdc, _LDSR, LDSR_AS, 0); | |
422 | lcdc_write(ch->lcdc, _LDDWAR, LDDWAR_WA | | |
423 | (lcdc_chan_is_sublcd(ch) ? 2 : 0)); | |
424 | lcdc_wait_bit(ch->lcdc, _LDSR, LDSR_AS, 0); | |
cfb4f5d1 MD |
425 | } |
426 | ||
427 | static unsigned long lcdc_sys_read_data(void *handle) | |
428 | { | |
429 | struct sh_mobile_lcdc_chan *ch = handle; | |
430 | ||
ce1c0b08 LP |
431 | lcdc_write(ch->lcdc, _LDDRDR, LDDRDR_RSR); |
432 | lcdc_wait_bit(ch->lcdc, _LDSR, LDSR_AS, 0); | |
433 | lcdc_write(ch->lcdc, _LDDRAR, LDDRAR_RA | | |
434 | (lcdc_chan_is_sublcd(ch) ? 2 : 0)); | |
cfb4f5d1 | 435 | udelay(1); |
ce1c0b08 | 436 | lcdc_wait_bit(ch->lcdc, _LDSR, LDSR_AS, 0); |
cfb4f5d1 | 437 | |
ce1c0b08 | 438 | return lcdc_read(ch->lcdc, _LDDRDR) & LDDRDR_DRD_MASK; |
cfb4f5d1 MD |
439 | } |
440 | ||
441 | struct sh_mobile_lcdc_sys_bus_ops sh_mobile_lcdc_sys_bus_ops = { | |
442 | lcdc_sys_write_index, | |
443 | lcdc_sys_write_data, | |
444 | lcdc_sys_read_data, | |
445 | }; | |
446 | ||
1c6a307a PM |
447 | static int sh_mobile_lcdc_sginit(struct fb_info *info, |
448 | struct list_head *pagelist) | |
449 | { | |
450 | struct sh_mobile_lcdc_chan *ch = info->par; | |
58f03d99 | 451 | unsigned int nr_pages_max = ch->fb_size >> PAGE_SHIFT; |
1c6a307a PM |
452 | struct page *page; |
453 | int nr_pages = 0; | |
454 | ||
455 | sg_init_table(ch->sglist, nr_pages_max); | |
456 | ||
457 | list_for_each_entry(page, pagelist, lru) | |
458 | sg_set_page(&ch->sglist[nr_pages++], page, PAGE_SIZE, 0); | |
459 | ||
460 | return nr_pages; | |
461 | } | |
462 | ||
8564557a MD |
463 | static void sh_mobile_lcdc_deferred_io(struct fb_info *info, |
464 | struct list_head *pagelist) | |
465 | { | |
466 | struct sh_mobile_lcdc_chan *ch = info->par; | |
b5ef967d | 467 | const struct sh_mobile_lcdc_panel_cfg *panel = &ch->cfg->panel_cfg; |
8564557a MD |
468 | |
469 | /* enable clocks before accessing hardware */ | |
470 | sh_mobile_lcdc_clk_on(ch->lcdc); | |
471 | ||
5c1a56b5 PM |
472 | /* |
473 | * It's possible to get here without anything on the pagelist via | |
474 | * sh_mobile_lcdc_deferred_io_touch() or via a userspace fsync() | |
475 | * invocation. In the former case, the acceleration routines are | |
476 | * stepped in to when using the framebuffer console causing the | |
477 | * workqueue to be scheduled without any dirty pages on the list. | |
478 | * | |
479 | * Despite this, a panel update is still needed given that the | |
480 | * acceleration routines have their own methods for writing in | |
481 | * that still need to be updated. | |
482 | * | |
483 | * The fsync() and empty pagelist case could be optimized for, | |
484 | * but we don't bother, as any application exhibiting such | |
485 | * behaviour is fundamentally broken anyways. | |
486 | */ | |
487 | if (!list_empty(pagelist)) { | |
488 | unsigned int nr_pages = sh_mobile_lcdc_sginit(info, pagelist); | |
489 | ||
490 | /* trigger panel update */ | |
e8363140 | 491 | dma_map_sg(ch->lcdc->dev, ch->sglist, nr_pages, DMA_TO_DEVICE); |
afaad83b LP |
492 | if (panel->start_transfer) |
493 | panel->start_transfer(ch, &sh_mobile_lcdc_sys_bus_ops); | |
ce1c0b08 | 494 | lcdc_write_chan(ch, LDSM2R, LDSM2R_OSTRG); |
e8363140 LP |
495 | dma_unmap_sg(ch->lcdc->dev, ch->sglist, nr_pages, |
496 | DMA_TO_DEVICE); | |
ef61aae4 | 497 | } else { |
afaad83b LP |
498 | if (panel->start_transfer) |
499 | panel->start_transfer(ch, &sh_mobile_lcdc_sys_bus_ops); | |
ce1c0b08 | 500 | lcdc_write_chan(ch, LDSM2R, LDSM2R_OSTRG); |
ef61aae4 | 501 | } |
8564557a MD |
502 | } |
503 | ||
504 | static void sh_mobile_lcdc_deferred_io_touch(struct fb_info *info) | |
505 | { | |
506 | struct fb_deferred_io *fbdefio = info->fbdefio; | |
507 | ||
508 | if (fbdefio) | |
509 | schedule_delayed_work(&info->deferred_work, fbdefio->delay); | |
510 | } | |
511 | ||
37c5dcc2 LP |
512 | static void sh_mobile_lcdc_display_on(struct sh_mobile_lcdc_chan *ch) |
513 | { | |
b5ef967d | 514 | const struct sh_mobile_lcdc_panel_cfg *panel = &ch->cfg->panel_cfg; |
37c5dcc2 | 515 | |
9a2985e7 | 516 | if (ch->tx_dev) { |
458981c3 LP |
517 | int ret; |
518 | ||
519 | ret = ch->tx_dev->ops->display_on(ch->tx_dev); | |
520 | if (ret < 0) | |
9a2985e7 | 521 | return; |
458981c3 LP |
522 | |
523 | if (ret == SH_MOBILE_LCDC_DISPLAY_DISCONNECTED) | |
524 | ch->info->state = FBINFO_STATE_SUSPENDED; | |
9a2985e7 LP |
525 | } |
526 | ||
37c5dcc2 | 527 | /* HDMI must be enabled before LCDC configuration */ |
afaad83b LP |
528 | if (panel->display_on) |
529 | panel->display_on(); | |
37c5dcc2 LP |
530 | } |
531 | ||
532 | static void sh_mobile_lcdc_display_off(struct sh_mobile_lcdc_chan *ch) | |
533 | { | |
b5ef967d | 534 | const struct sh_mobile_lcdc_panel_cfg *panel = &ch->cfg->panel_cfg; |
37c5dcc2 | 535 | |
afaad83b LP |
536 | if (panel->display_off) |
537 | panel->display_off(); | |
9a2985e7 LP |
538 | |
539 | if (ch->tx_dev) | |
540 | ch->tx_dev->ops->display_off(ch->tx_dev); | |
37c5dcc2 LP |
541 | } |
542 | ||
ecd29947 LP |
543 | static bool |
544 | sh_mobile_lcdc_must_reconfigure(struct sh_mobile_lcdc_chan *ch, | |
e0c8601a | 545 | const struct fb_videomode *new_mode) |
ecd29947 | 546 | { |
ecd29947 | 547 | dev_dbg(ch->info->dev, "Old %ux%u, new %ux%u\n", |
2d04559d LP |
548 | ch->display.mode.xres, ch->display.mode.yres, |
549 | new_mode->xres, new_mode->yres); | |
ecd29947 | 550 | |
e0c8601a | 551 | /* It can be a different monitor with an equal video-mode */ |
2d04559d | 552 | if (fb_mode_is_equal(&ch->display.mode, new_mode)) |
ecd29947 | 553 | return false; |
ecd29947 LP |
554 | |
555 | dev_dbg(ch->info->dev, "Switching %u -> %u lines\n", | |
2d04559d LP |
556 | ch->display.mode.yres, new_mode->yres); |
557 | ch->display.mode = *new_mode; | |
ecd29947 LP |
558 | |
559 | return true; | |
560 | } | |
561 | ||
d7ad3342 LP |
562 | static int sh_mobile_lcdc_check_var(struct fb_var_screeninfo *var, |
563 | struct fb_info *info); | |
ecd29947 LP |
564 | |
565 | static int sh_mobile_lcdc_display_notify(struct sh_mobile_lcdc_chan *ch, | |
566 | enum sh_mobile_lcdc_entity_event event, | |
e0c8601a LP |
567 | const struct fb_videomode *mode, |
568 | const struct fb_monspecs *monspec) | |
ecd29947 LP |
569 | { |
570 | struct fb_info *info = ch->info; | |
e0c8601a | 571 | struct fb_var_screeninfo var; |
ecd29947 LP |
572 | int ret = 0; |
573 | ||
574 | switch (event) { | |
575 | case SH_MOBILE_LCDC_EVENT_DISPLAY_CONNECT: | |
576 | /* HDMI plug in */ | |
577 | if (lock_fb_info(info)) { | |
578 | console_lock(); | |
579 | ||
2d04559d LP |
580 | ch->display.width = monspec->max_x * 10; |
581 | ch->display.height = monspec->max_y * 10; | |
e0c8601a LP |
582 | |
583 | if (!sh_mobile_lcdc_must_reconfigure(ch, mode) && | |
ecd29947 LP |
584 | info->state == FBINFO_STATE_RUNNING) { |
585 | /* First activation with the default monitor. | |
586 | * Just turn on, if we run a resume here, the | |
587 | * logo disappears. | |
588 | */ | |
e0c8601a LP |
589 | info->var.width = monspec->max_x * 10; |
590 | info->var.height = monspec->max_y * 10; | |
ecd29947 LP |
591 | sh_mobile_lcdc_display_on(ch); |
592 | } else { | |
593 | /* New monitor or have to wake up */ | |
594 | fb_set_suspend(info, 0); | |
595 | } | |
596 | ||
597 | console_unlock(); | |
598 | unlock_fb_info(info); | |
599 | } | |
600 | break; | |
601 | ||
602 | case SH_MOBILE_LCDC_EVENT_DISPLAY_DISCONNECT: | |
603 | /* HDMI disconnect */ | |
604 | if (lock_fb_info(info)) { | |
605 | console_lock(); | |
606 | fb_set_suspend(info, 1); | |
607 | console_unlock(); | |
608 | unlock_fb_info(info); | |
609 | } | |
610 | break; | |
611 | ||
612 | case SH_MOBILE_LCDC_EVENT_DISPLAY_MODE: | |
613 | /* Validate a proposed new mode */ | |
e0c8601a LP |
614 | fb_videomode_to_var(&var, mode); |
615 | var.bits_per_pixel = info->var.bits_per_pixel; | |
616 | var.grayscale = info->var.grayscale; | |
d7ad3342 | 617 | ret = sh_mobile_lcdc_check_var(&var, info); |
ecd29947 LP |
618 | break; |
619 | } | |
620 | ||
621 | return ret; | |
622 | } | |
623 | ||
f1f60b5f LP |
624 | /* ----------------------------------------------------------------------------- |
625 | * Format helpers | |
626 | */ | |
627 | ||
105784bb LP |
628 | struct sh_mobile_lcdc_format_info { |
629 | u32 fourcc; | |
630 | unsigned int bpp; | |
631 | bool yuv; | |
632 | u32 lddfr; | |
633 | }; | |
634 | ||
635 | static const struct sh_mobile_lcdc_format_info sh_mobile_format_infos[] = { | |
636 | { | |
637 | .fourcc = V4L2_PIX_FMT_RGB565, | |
638 | .bpp = 16, | |
639 | .yuv = false, | |
640 | .lddfr = LDDFR_PKF_RGB16, | |
641 | }, { | |
642 | .fourcc = V4L2_PIX_FMT_BGR24, | |
643 | .bpp = 24, | |
644 | .yuv = false, | |
645 | .lddfr = LDDFR_PKF_RGB24, | |
646 | }, { | |
647 | .fourcc = V4L2_PIX_FMT_BGR32, | |
648 | .bpp = 32, | |
649 | .yuv = false, | |
650 | .lddfr = LDDFR_PKF_ARGB32, | |
651 | }, { | |
652 | .fourcc = V4L2_PIX_FMT_NV12, | |
653 | .bpp = 12, | |
654 | .yuv = true, | |
655 | .lddfr = LDDFR_CC | LDDFR_YF_420, | |
656 | }, { | |
657 | .fourcc = V4L2_PIX_FMT_NV21, | |
658 | .bpp = 12, | |
659 | .yuv = true, | |
660 | .lddfr = LDDFR_CC | LDDFR_YF_420, | |
661 | }, { | |
662 | .fourcc = V4L2_PIX_FMT_NV16, | |
663 | .bpp = 16, | |
664 | .yuv = true, | |
665 | .lddfr = LDDFR_CC | LDDFR_YF_422, | |
666 | }, { | |
667 | .fourcc = V4L2_PIX_FMT_NV61, | |
668 | .bpp = 16, | |
669 | .yuv = true, | |
670 | .lddfr = LDDFR_CC | LDDFR_YF_422, | |
671 | }, { | |
672 | .fourcc = V4L2_PIX_FMT_NV24, | |
673 | .bpp = 24, | |
674 | .yuv = true, | |
675 | .lddfr = LDDFR_CC | LDDFR_YF_444, | |
676 | }, { | |
677 | .fourcc = V4L2_PIX_FMT_NV42, | |
678 | .bpp = 24, | |
679 | .yuv = true, | |
680 | .lddfr = LDDFR_CC | LDDFR_YF_444, | |
681 | }, | |
682 | }; | |
683 | ||
684 | static const struct sh_mobile_lcdc_format_info * | |
685 | sh_mobile_format_info(u32 fourcc) | |
686 | { | |
687 | unsigned int i; | |
688 | ||
689 | for (i = 0; i < ARRAY_SIZE(sh_mobile_format_infos); ++i) { | |
690 | if (sh_mobile_format_infos[i].fourcc == fourcc) | |
691 | return &sh_mobile_format_infos[i]; | |
692 | } | |
693 | ||
694 | return NULL; | |
695 | } | |
696 | ||
f1f60b5f LP |
697 | static int sh_mobile_format_fourcc(const struct fb_var_screeninfo *var) |
698 | { | |
699 | if (var->grayscale > 1) | |
700 | return var->grayscale; | |
701 | ||
702 | switch (var->bits_per_pixel) { | |
703 | case 16: | |
704 | return V4L2_PIX_FMT_RGB565; | |
705 | case 24: | |
706 | return V4L2_PIX_FMT_BGR24; | |
707 | case 32: | |
708 | return V4L2_PIX_FMT_BGR32; | |
709 | default: | |
710 | return 0; | |
711 | } | |
712 | } | |
713 | ||
714 | static int sh_mobile_format_is_fourcc(const struct fb_var_screeninfo *var) | |
715 | { | |
716 | return var->grayscale > 1; | |
717 | } | |
718 | ||
f1f60b5f LP |
719 | /* ----------------------------------------------------------------------------- |
720 | * Start, stop and IRQ | |
721 | */ | |
722 | ||
8564557a MD |
723 | static irqreturn_t sh_mobile_lcdc_irq(int irq, void *data) |
724 | { | |
725 | struct sh_mobile_lcdc_priv *priv = data; | |
2feb075a | 726 | struct sh_mobile_lcdc_chan *ch; |
9dd38819 | 727 | unsigned long ldintr; |
2feb075a MD |
728 | int is_sub; |
729 | int k; | |
8564557a | 730 | |
dc48665f LP |
731 | /* Acknowledge interrupts and disable further VSYNC End IRQs. */ |
732 | ldintr = lcdc_read(priv, _LDINTR); | |
733 | lcdc_write(priv, _LDINTR, (ldintr ^ LDINTR_STATUS_MASK) & ~LDINTR_VEE); | |
8564557a | 734 | |
2feb075a | 735 | /* figure out if this interrupt is for main or sub lcd */ |
ce1c0b08 | 736 | is_sub = (lcdc_read(priv, _LDSR) & LDSR_MSS) ? 1 : 0; |
2feb075a | 737 | |
9dd38819 | 738 | /* wake up channel and disable clocks */ |
2feb075a MD |
739 | for (k = 0; k < ARRAY_SIZE(priv->ch); k++) { |
740 | ch = &priv->ch[k]; | |
741 | ||
742 | if (!ch->enabled) | |
743 | continue; | |
744 | ||
dc48665f | 745 | /* Frame End */ |
9dd38819 PE |
746 | if (ldintr & LDINTR_FS) { |
747 | if (is_sub == lcdc_chan_is_sublcd(ch)) { | |
748 | ch->frame_end = 1; | |
749 | wake_up(&ch->frame_end_wait); | |
2feb075a | 750 | |
9dd38819 PE |
751 | sh_mobile_lcdc_clk_off(priv); |
752 | } | |
753 | } | |
754 | ||
755 | /* VSYNC End */ | |
40331b21 PE |
756 | if (ldintr & LDINTR_VES) |
757 | complete(&ch->vsync_completion); | |
2feb075a MD |
758 | } |
759 | ||
8564557a MD |
760 | return IRQ_HANDLED; |
761 | } | |
762 | ||
d7ad3342 | 763 | static int sh_mobile_lcdc_wait_for_vsync(struct sh_mobile_lcdc_chan *ch) |
4976677f LP |
764 | { |
765 | unsigned long ldintr; | |
766 | int ret; | |
767 | ||
768 | /* Enable VSync End interrupt and be careful not to acknowledge any | |
769 | * pending interrupt. | |
770 | */ | |
771 | ldintr = lcdc_read(ch->lcdc, _LDINTR); | |
772 | ldintr |= LDINTR_VEE | LDINTR_STATUS_MASK; | |
773 | lcdc_write(ch->lcdc, _LDINTR, ldintr); | |
774 | ||
775 | ret = wait_for_completion_interruptible_timeout(&ch->vsync_completion, | |
776 | msecs_to_jiffies(100)); | |
777 | if (!ret) | |
778 | return -ETIMEDOUT; | |
779 | ||
780 | return 0; | |
781 | } | |
782 | ||
cfb4f5d1 MD |
783 | static void sh_mobile_lcdc_start_stop(struct sh_mobile_lcdc_priv *priv, |
784 | int start) | |
785 | { | |
786 | unsigned long tmp = lcdc_read(priv, _LDCNT2R); | |
787 | int k; | |
788 | ||
789 | /* start or stop the lcdc */ | |
790 | if (start) | |
ce1c0b08 | 791 | lcdc_write(priv, _LDCNT2R, tmp | LDCNT2R_DO); |
cfb4f5d1 | 792 | else |
ce1c0b08 | 793 | lcdc_write(priv, _LDCNT2R, tmp & ~LDCNT2R_DO); |
cfb4f5d1 MD |
794 | |
795 | /* wait until power is applied/stopped on all channels */ | |
796 | for (k = 0; k < ARRAY_SIZE(priv->ch); k++) | |
797 | if (lcdc_read(priv, _LDCNT2R) & priv->ch[k].enabled) | |
798 | while (1) { | |
ce1c0b08 LP |
799 | tmp = lcdc_read_chan(&priv->ch[k], LDPMR) |
800 | & LDPMR_LPS; | |
801 | if (start && tmp == LDPMR_LPS) | |
cfb4f5d1 MD |
802 | break; |
803 | if (!start && tmp == 0) | |
804 | break; | |
805 | cpu_relax(); | |
806 | } | |
807 | ||
808 | if (!start) | |
809 | lcdc_write(priv, _LDDCKSTPR, 1); /* stop dotclock */ | |
810 | } | |
811 | ||
6011bdea GL |
812 | static void sh_mobile_lcdc_geometry(struct sh_mobile_lcdc_chan *ch) |
813 | { | |
2d04559d LP |
814 | const struct fb_var_screeninfo *var = &ch->info->var; |
815 | const struct fb_videomode *mode = &ch->display.mode; | |
1c120deb | 816 | unsigned long h_total, hsync_pos, display_h_total; |
6011bdea GL |
817 | u32 tmp; |
818 | ||
819 | tmp = ch->ldmt1r_value; | |
ce1c0b08 LP |
820 | tmp |= (var->sync & FB_SYNC_VERT_HIGH_ACT) ? 0 : LDMT1R_VPOL; |
821 | tmp |= (var->sync & FB_SYNC_HOR_HIGH_ACT) ? 0 : LDMT1R_HPOL; | |
b5ef967d LP |
822 | tmp |= (ch->cfg->flags & LCDC_FLAGS_DWPOL) ? LDMT1R_DWPOL : 0; |
823 | tmp |= (ch->cfg->flags & LCDC_FLAGS_DIPOL) ? LDMT1R_DIPOL : 0; | |
824 | tmp |= (ch->cfg->flags & LCDC_FLAGS_DAPOL) ? LDMT1R_DAPOL : 0; | |
825 | tmp |= (ch->cfg->flags & LCDC_FLAGS_HSCNT) ? LDMT1R_HSCNT : 0; | |
826 | tmp |= (ch->cfg->flags & LCDC_FLAGS_DWCNT) ? LDMT1R_DWCNT : 0; | |
6011bdea GL |
827 | lcdc_write_chan(ch, LDMT1R, tmp); |
828 | ||
829 | /* setup SYS bus */ | |
b5ef967d LP |
830 | lcdc_write_chan(ch, LDMT2R, ch->cfg->sys_bus_cfg.ldmt2r); |
831 | lcdc_write_chan(ch, LDMT3R, ch->cfg->sys_bus_cfg.ldmt3r); | |
6011bdea GL |
832 | |
833 | /* horizontal configuration */ | |
2d04559d LP |
834 | h_total = mode->xres + mode->hsync_len + mode->left_margin |
835 | + mode->right_margin; | |
6011bdea | 836 | tmp = h_total / 8; /* HTCN */ |
58f03d99 | 837 | tmp |= (min(mode->xres, ch->xres) / 8) << 16; /* HDCN */ |
6011bdea GL |
838 | lcdc_write_chan(ch, LDHCNR, tmp); |
839 | ||
2d04559d | 840 | hsync_pos = mode->xres + mode->right_margin; |
6011bdea | 841 | tmp = hsync_pos / 8; /* HSYNP */ |
2d04559d | 842 | tmp |= (mode->hsync_len / 8) << 16; /* HSYNW */ |
6011bdea GL |
843 | lcdc_write_chan(ch, LDHSYNR, tmp); |
844 | ||
845 | /* vertical configuration */ | |
2d04559d LP |
846 | tmp = mode->yres + mode->vsync_len + mode->upper_margin |
847 | + mode->lower_margin; /* VTLN */ | |
58f03d99 | 848 | tmp |= min(mode->yres, ch->yres) << 16; /* VDLN */ |
6011bdea GL |
849 | lcdc_write_chan(ch, LDVLNR, tmp); |
850 | ||
2d04559d LP |
851 | tmp = mode->yres + mode->lower_margin; /* VSYNP */ |
852 | tmp |= mode->vsync_len << 16; /* VSYNW */ | |
6011bdea GL |
853 | lcdc_write_chan(ch, LDVSYNR, tmp); |
854 | ||
855 | /* Adjust horizontal synchronisation for HDMI */ | |
2d04559d LP |
856 | display_h_total = mode->xres + mode->hsync_len + mode->left_margin |
857 | + mode->right_margin; | |
858 | tmp = ((mode->xres & 7) << 24) | ((display_h_total & 7) << 16) | |
859 | | ((mode->hsync_len & 7) << 8) | (hsync_pos & 7); | |
6011bdea GL |
860 | lcdc_write_chan(ch, LDHAJR, tmp); |
861 | } | |
862 | ||
c5deac3c LP |
863 | static void sh_mobile_lcdc_overlay_setup(struct sh_mobile_lcdc_overlay *ovl) |
864 | { | |
865 | u32 format = 0; | |
866 | ||
867 | if (!ovl->enabled) { | |
868 | lcdc_write(ovl->channel->lcdc, LDBCR, LDBCR_UPC(ovl->index)); | |
869 | lcdc_write_overlay(ovl, LDBnBSIFR(ovl->index), 0); | |
870 | lcdc_write(ovl->channel->lcdc, LDBCR, | |
871 | LDBCR_UPF(ovl->index) | LDBCR_UPD(ovl->index)); | |
872 | return; | |
873 | } | |
874 | ||
875 | ovl->base_addr_y = ovl->dma_handle; | |
876 | ovl->base_addr_c = ovl->base_addr_y + ovl->xres | |
877 | * ovl->yres_virtual; | |
878 | ||
879 | switch (ovl->mode) { | |
880 | case LCDC_OVERLAY_BLEND: | |
881 | format = LDBBSIFR_EN | (ovl->alpha << LDBBSIFR_LAY_SHIFT); | |
882 | break; | |
883 | ||
884 | case LCDC_OVERLAY_ROP3: | |
885 | format = LDBBSIFR_EN | LDBBSIFR_BRSEL | |
886 | | (ovl->rop3 << LDBBSIFR_ROP3_SHIFT); | |
887 | break; | |
888 | } | |
889 | ||
890 | switch (ovl->format->fourcc) { | |
891 | case V4L2_PIX_FMT_RGB565: | |
892 | case V4L2_PIX_FMT_NV21: | |
893 | case V4L2_PIX_FMT_NV61: | |
894 | case V4L2_PIX_FMT_NV42: | |
895 | format |= LDBBSIFR_SWPL | LDBBSIFR_SWPW; | |
896 | break; | |
897 | case V4L2_PIX_FMT_BGR24: | |
898 | case V4L2_PIX_FMT_NV12: | |
899 | case V4L2_PIX_FMT_NV16: | |
900 | case V4L2_PIX_FMT_NV24: | |
901 | format |= LDBBSIFR_SWPL | LDBBSIFR_SWPW | LDBBSIFR_SWPB; | |
902 | break; | |
903 | case V4L2_PIX_FMT_BGR32: | |
904 | default: | |
905 | format |= LDBBSIFR_SWPL; | |
906 | break; | |
907 | } | |
908 | ||
909 | switch (ovl->format->fourcc) { | |
910 | case V4L2_PIX_FMT_RGB565: | |
911 | format |= LDBBSIFR_AL_1 | LDBBSIFR_RY | LDBBSIFR_RPKF_RGB16; | |
912 | break; | |
913 | case V4L2_PIX_FMT_BGR24: | |
914 | format |= LDBBSIFR_AL_1 | LDBBSIFR_RY | LDBBSIFR_RPKF_RGB24; | |
915 | break; | |
916 | case V4L2_PIX_FMT_BGR32: | |
917 | format |= LDBBSIFR_AL_PK | LDBBSIFR_RY | LDDFR_PKF_ARGB32; | |
918 | break; | |
919 | case V4L2_PIX_FMT_NV12: | |
920 | case V4L2_PIX_FMT_NV21: | |
921 | format |= LDBBSIFR_AL_1 | LDBBSIFR_CHRR_420; | |
922 | break; | |
923 | case V4L2_PIX_FMT_NV16: | |
924 | case V4L2_PIX_FMT_NV61: | |
925 | format |= LDBBSIFR_AL_1 | LDBBSIFR_CHRR_422; | |
926 | break; | |
927 | case V4L2_PIX_FMT_NV24: | |
928 | case V4L2_PIX_FMT_NV42: | |
929 | format |= LDBBSIFR_AL_1 | LDBBSIFR_CHRR_444; | |
930 | break; | |
931 | } | |
932 | ||
933 | lcdc_write(ovl->channel->lcdc, LDBCR, LDBCR_UPC(ovl->index)); | |
934 | ||
935 | lcdc_write_overlay(ovl, LDBnBSIFR(ovl->index), format); | |
936 | ||
937 | lcdc_write_overlay(ovl, LDBnBSSZR(ovl->index), | |
938 | (ovl->yres << LDBBSSZR_BVSS_SHIFT) | | |
939 | (ovl->xres << LDBBSSZR_BHSS_SHIFT)); | |
940 | lcdc_write_overlay(ovl, LDBnBLOCR(ovl->index), | |
941 | (ovl->pos_y << LDBBLOCR_CVLC_SHIFT) | | |
942 | (ovl->pos_x << LDBBLOCR_CHLC_SHIFT)); | |
943 | lcdc_write_overlay(ovl, LDBnBSMWR(ovl->index), | |
944 | ovl->pitch << LDBBSMWR_BSMW_SHIFT); | |
945 | ||
946 | lcdc_write_overlay(ovl, LDBnBSAYR(ovl->index), ovl->base_addr_y); | |
947 | lcdc_write_overlay(ovl, LDBnBSACR(ovl->index), ovl->base_addr_c); | |
948 | ||
949 | lcdc_write(ovl->channel->lcdc, LDBCR, | |
950 | LDBCR_UPF(ovl->index) | LDBCR_UPD(ovl->index)); | |
951 | } | |
952 | ||
9a217e34 | 953 | /* |
d7ad3342 | 954 | * __sh_mobile_lcdc_start - Configure and start the LCDC |
9a217e34 LP |
955 | * @priv: LCDC device |
956 | * | |
957 | * Configure all enabled channels and start the LCDC device. All external | |
958 | * devices (clocks, MERAM, panels, ...) are not touched by this function. | |
959 | */ | |
960 | static void __sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv) | |
cfb4f5d1 MD |
961 | { |
962 | struct sh_mobile_lcdc_chan *ch; | |
cfb4f5d1 | 963 | unsigned long tmp; |
9a217e34 | 964 | int k, m; |
8564557a | 965 | |
9a217e34 LP |
966 | /* Enable LCDC channels. Read data from external memory, avoid using the |
967 | * BEU for now. | |
968 | */ | |
969 | lcdc_write(priv, _LDCNT2R, priv->ch[0].enabled | priv->ch[1].enabled); | |
cfb4f5d1 | 970 | |
9a217e34 | 971 | /* Stop the LCDC first and disable all interrupts. */ |
cfb4f5d1 | 972 | sh_mobile_lcdc_start_stop(priv, 0); |
9a217e34 | 973 | lcdc_write(priv, _LDINTR, 0); |
cfb4f5d1 | 974 | |
9a217e34 | 975 | /* Configure power supply, dot clocks and start them. */ |
cfb4f5d1 MD |
976 | tmp = priv->lddckr; |
977 | for (k = 0; k < ARRAY_SIZE(priv->ch); k++) { | |
978 | ch = &priv->ch[k]; | |
9a217e34 | 979 | if (!ch->enabled) |
cfb4f5d1 MD |
980 | continue; |
981 | ||
9a217e34 LP |
982 | /* Power supply */ |
983 | lcdc_write_chan(ch, LDPMR, 0); | |
984 | ||
b5ef967d | 985 | m = ch->cfg->clock_divider; |
cfb4f5d1 MD |
986 | if (!m) |
987 | continue; | |
988 | ||
505c7de5 LP |
989 | /* FIXME: sh7724 can only use 42, 48, 54 and 60 for the divider |
990 | * denominator. | |
991 | */ | |
992 | lcdc_write_chan(ch, LDDCKPAT1R, 0); | |
993 | lcdc_write_chan(ch, LDDCKPAT2R, (1 << (m/2)) - 1); | |
994 | ||
cfb4f5d1 | 995 | if (m == 1) |
ce1c0b08 | 996 | m = LDDCKR_MOSEL; |
cfb4f5d1 | 997 | tmp |= m << (lcdc_chan_is_sublcd(ch) ? 8 : 0); |
cfb4f5d1 MD |
998 | } |
999 | ||
1000 | lcdc_write(priv, _LDDCKR, tmp); | |
cfb4f5d1 MD |
1001 | lcdc_write(priv, _LDDCKSTPR, 0); |
1002 | lcdc_wait_bit(priv, _LDDCKSTPR, ~0, 0); | |
1003 | ||
9a217e34 | 1004 | /* Setup geometry, format, frame buffer memory and operation mode. */ |
cfb4f5d1 MD |
1005 | for (k = 0; k < ARRAY_SIZE(priv->ch); k++) { |
1006 | ch = &priv->ch[k]; | |
cfb4f5d1 MD |
1007 | if (!ch->enabled) |
1008 | continue; | |
1009 | ||
6011bdea | 1010 | sh_mobile_lcdc_geometry(ch); |
cfb4f5d1 | 1011 | |
fc9e78e6 | 1012 | tmp = ch->format->lddfr; |
edd153a3 | 1013 | |
fc9e78e6 | 1014 | if (ch->format->yuv) { |
58f03d99 | 1015 | switch (ch->colorspace) { |
edd153a3 LP |
1016 | case V4L2_COLORSPACE_REC709: |
1017 | tmp |= LDDFR_CF1; | |
53b50314 | 1018 | break; |
edd153a3 LP |
1019 | case V4L2_COLORSPACE_JPEG: |
1020 | tmp |= LDDFR_CF0; | |
53b50314 DHG |
1021 | break; |
1022 | } | |
417d4827 | 1023 | } |
7caa4342 | 1024 | |
9a217e34 | 1025 | lcdc_write_chan(ch, LDDFR, tmp); |
72c04af9 | 1026 | lcdc_write_chan(ch, LDMLSR, ch->line_size); |
9a217e34 | 1027 | lcdc_write_chan(ch, LDSA1R, ch->base_addr_y); |
fc9e78e6 | 1028 | if (ch->format->yuv) |
9a217e34 | 1029 | lcdc_write_chan(ch, LDSA2R, ch->base_addr_c); |
7caa4342 | 1030 | |
9a217e34 LP |
1031 | /* When using deferred I/O mode, configure the LCDC for one-shot |
1032 | * operation and enable the frame end interrupt. Otherwise use | |
1033 | * continuous read mode. | |
1034 | */ | |
1035 | if (ch->ldmt1r_value & LDMT1R_IFM && | |
b5ef967d | 1036 | ch->cfg->sys_bus_cfg.deferred_io_msec) { |
9a217e34 LP |
1037 | lcdc_write_chan(ch, LDSM1R, LDSM1R_OS); |
1038 | lcdc_write(priv, _LDINTR, LDINTR_FE); | |
1039 | } else { | |
1040 | lcdc_write_chan(ch, LDSM1R, 0); | |
1041 | } | |
1042 | } | |
7caa4342 | 1043 | |
9a217e34 | 1044 | /* Word and long word swap. */ |
fc9e78e6 | 1045 | switch (priv->ch[0].format->fourcc) { |
edd153a3 LP |
1046 | case V4L2_PIX_FMT_RGB565: |
1047 | case V4L2_PIX_FMT_NV21: | |
1048 | case V4L2_PIX_FMT_NV61: | |
1049 | case V4L2_PIX_FMT_NV42: | |
1050 | tmp = LDDDSR_LS | LDDDSR_WS; | |
1051 | break; | |
1052 | case V4L2_PIX_FMT_BGR24: | |
1053 | case V4L2_PIX_FMT_NV12: | |
1054 | case V4L2_PIX_FMT_NV16: | |
1055 | case V4L2_PIX_FMT_NV24: | |
9a217e34 | 1056 | tmp = LDDDSR_LS | LDDDSR_WS | LDDDSR_BS; |
edd153a3 LP |
1057 | break; |
1058 | case V4L2_PIX_FMT_BGR32: | |
1059 | default: | |
1060 | tmp = LDDDSR_LS; | |
1061 | break; | |
9a217e34 LP |
1062 | } |
1063 | lcdc_write(priv, _LDDDSR, tmp); | |
7caa4342 | 1064 | |
9a217e34 LP |
1065 | /* Enable the display output. */ |
1066 | lcdc_write(priv, _LDCNT1R, LDCNT1R_DE); | |
1067 | sh_mobile_lcdc_start_stop(priv, 1); | |
1068 | priv->started = 1; | |
1069 | } | |
cfb4f5d1 | 1070 | |
9a217e34 LP |
1071 | static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv) |
1072 | { | |
1073 | struct sh_mobile_meram_info *mdev = priv->meram_dev; | |
9a217e34 LP |
1074 | struct sh_mobile_lcdc_chan *ch; |
1075 | unsigned long tmp; | |
1076 | int ret; | |
1077 | int k; | |
cfb4f5d1 | 1078 | |
9a217e34 LP |
1079 | /* enable clocks before accessing the hardware */ |
1080 | for (k = 0; k < ARRAY_SIZE(priv->ch); k++) { | |
1081 | if (priv->ch[k].enabled) | |
1082 | sh_mobile_lcdc_clk_on(priv); | |
1083 | } | |
8564557a | 1084 | |
9a217e34 LP |
1085 | /* reset */ |
1086 | lcdc_write(priv, _LDCNT2R, lcdc_read(priv, _LDCNT2R) | LDCNT2R_BR); | |
1087 | lcdc_wait_bit(priv, _LDCNT2R, LDCNT2R_BR, 0); | |
8564557a | 1088 | |
9a217e34 | 1089 | for (k = 0; k < ARRAY_SIZE(priv->ch); k++) { |
b5ef967d | 1090 | const struct sh_mobile_lcdc_panel_cfg *panel; |
8564557a | 1091 | |
37c5dcc2 | 1092 | ch = &priv->ch[k]; |
9a217e34 LP |
1093 | if (!ch->enabled) |
1094 | continue; | |
1095 | ||
b5ef967d | 1096 | panel = &ch->cfg->panel_cfg; |
afaad83b LP |
1097 | if (panel->setup_sys) { |
1098 | ret = panel->setup_sys(ch, &sh_mobile_lcdc_sys_bus_ops); | |
9a217e34 LP |
1099 | if (ret) |
1100 | return ret; | |
8564557a | 1101 | } |
cfb4f5d1 MD |
1102 | } |
1103 | ||
9a217e34 LP |
1104 | /* Compute frame buffer base address and pitch for each channel. */ |
1105 | for (k = 0; k < ARRAY_SIZE(priv->ch); k++) { | |
9a217e34 | 1106 | int pixelformat; |
48110050 | 1107 | void *meram; |
cfb4f5d1 | 1108 | |
9a217e34 LP |
1109 | ch = &priv->ch[k]; |
1110 | if (!ch->enabled) | |
1111 | continue; | |
cfb4f5d1 | 1112 | |
58f03d99 LP |
1113 | ch->base_addr_y = ch->dma_handle; |
1114 | ch->base_addr_c = ch->base_addr_y + ch->xres * ch->yres_virtual; | |
72c04af9 | 1115 | ch->line_size = ch->pitch; |
9a217e34 LP |
1116 | |
1117 | /* Enable MERAM if possible. */ | |
b5ef967d LP |
1118 | if (mdev == NULL || mdev->ops == NULL || |
1119 | ch->cfg->meram_cfg == NULL) | |
9a217e34 LP |
1120 | continue; |
1121 | ||
1122 | /* we need to de-init configured ICBs before we can | |
1123 | * re-initialize them. | |
1124 | */ | |
48110050 LP |
1125 | if (ch->meram) { |
1126 | mdev->ops->meram_unregister(mdev, ch->meram); | |
1127 | ch->meram = NULL; | |
9a217e34 LP |
1128 | } |
1129 | ||
fc9e78e6 | 1130 | switch (ch->format->fourcc) { |
edd153a3 LP |
1131 | case V4L2_PIX_FMT_NV12: |
1132 | case V4L2_PIX_FMT_NV21: | |
1133 | case V4L2_PIX_FMT_NV16: | |
1134 | case V4L2_PIX_FMT_NV61: | |
9a217e34 | 1135 | pixelformat = SH_MOBILE_MERAM_PF_NV; |
edd153a3 LP |
1136 | break; |
1137 | case V4L2_PIX_FMT_NV24: | |
1138 | case V4L2_PIX_FMT_NV42: | |
1139 | pixelformat = SH_MOBILE_MERAM_PF_NV24; | |
1140 | break; | |
1141 | case V4L2_PIX_FMT_RGB565: | |
1142 | case V4L2_PIX_FMT_BGR24: | |
1143 | case V4L2_PIX_FMT_BGR32: | |
1144 | default: | |
1145 | pixelformat = SH_MOBILE_MERAM_PF_RGB; | |
1146 | break; | |
1147 | } | |
9a217e34 | 1148 | |
b5ef967d LP |
1149 | meram = mdev->ops->meram_register(mdev, ch->cfg->meram_cfg, |
1150 | ch->pitch, ch->yres, pixelformat, | |
72c04af9 | 1151 | &ch->line_size); |
97d16fe6 LP |
1152 | if (!IS_ERR(meram)) { |
1153 | mdev->ops->meram_update(mdev, meram, | |
1154 | ch->base_addr_y, ch->base_addr_c, | |
1155 | &ch->base_addr_y, &ch->base_addr_c); | |
48110050 | 1156 | ch->meram = meram; |
97d16fe6 | 1157 | } |
9a217e34 LP |
1158 | } |
1159 | ||
c5deac3c LP |
1160 | for (k = 0; k < ARRAY_SIZE(priv->overlays); ++k) { |
1161 | struct sh_mobile_lcdc_overlay *ovl = &priv->overlays[k]; | |
1162 | sh_mobile_lcdc_overlay_setup(ovl); | |
1163 | } | |
1164 | ||
9a217e34 LP |
1165 | /* Start the LCDC. */ |
1166 | __sh_mobile_lcdc_start(priv); | |
1167 | ||
1168 | /* Setup deferred I/O, tell the board code to enable the panels, and | |
1169 | * turn backlight on. | |
1170 | */ | |
cfb4f5d1 MD |
1171 | for (k = 0; k < ARRAY_SIZE(priv->ch); k++) { |
1172 | ch = &priv->ch[k]; | |
21bc1f02 MD |
1173 | if (!ch->enabled) |
1174 | continue; | |
1175 | ||
b5ef967d | 1176 | tmp = ch->cfg->sys_bus_cfg.deferred_io_msec; |
9a217e34 LP |
1177 | if (ch->ldmt1r_value & LDMT1R_IFM && tmp) { |
1178 | ch->defio.deferred_io = sh_mobile_lcdc_deferred_io; | |
1179 | ch->defio.delay = msecs_to_jiffies(tmp); | |
1180 | ch->info->fbdefio = &ch->defio; | |
1181 | fb_deferred_io_init(ch->info); | |
1182 | } | |
1183 | ||
37c5dcc2 | 1184 | sh_mobile_lcdc_display_on(ch); |
3b0fd9d7 AC |
1185 | |
1186 | if (ch->bl) { | |
1187 | ch->bl->props.power = FB_BLANK_UNBLANK; | |
1188 | backlight_update_status(ch->bl); | |
1189 | } | |
cfb4f5d1 MD |
1190 | } |
1191 | ||
1192 | return 0; | |
1193 | } | |
1194 | ||
1195 | static void sh_mobile_lcdc_stop(struct sh_mobile_lcdc_priv *priv) | |
1196 | { | |
1197 | struct sh_mobile_lcdc_chan *ch; | |
cfb4f5d1 MD |
1198 | int k; |
1199 | ||
2feb075a | 1200 | /* clean up deferred io and ask board code to disable panel */ |
cfb4f5d1 MD |
1201 | for (k = 0; k < ARRAY_SIZE(priv->ch); k++) { |
1202 | ch = &priv->ch[k]; | |
21bc1f02 MD |
1203 | if (!ch->enabled) |
1204 | continue; | |
8564557a | 1205 | |
2feb075a MD |
1206 | /* deferred io mode: |
1207 | * flush frame, and wait for frame end interrupt | |
1208 | * clean up deferred io and enable clock | |
1209 | */ | |
5ef6b505 | 1210 | if (ch->info && ch->info->fbdefio) { |
2feb075a | 1211 | ch->frame_end = 0; |
e33afddc | 1212 | schedule_delayed_work(&ch->info->deferred_work, 0); |
2feb075a | 1213 | wait_event(ch->frame_end_wait, ch->frame_end); |
e33afddc PM |
1214 | fb_deferred_io_cleanup(ch->info); |
1215 | ch->info->fbdefio = NULL; | |
2feb075a | 1216 | sh_mobile_lcdc_clk_on(priv); |
8564557a | 1217 | } |
2feb075a | 1218 | |
3b0fd9d7 AC |
1219 | if (ch->bl) { |
1220 | ch->bl->props.power = FB_BLANK_POWERDOWN; | |
1221 | backlight_update_status(ch->bl); | |
1222 | } | |
1223 | ||
37c5dcc2 | 1224 | sh_mobile_lcdc_display_off(ch); |
7caa4342 DHG |
1225 | |
1226 | /* disable the meram */ | |
48110050 | 1227 | if (ch->meram) { |
7caa4342 | 1228 | struct sh_mobile_meram_info *mdev; |
7caa4342 | 1229 | mdev = priv->meram_dev; |
48110050 LP |
1230 | mdev->ops->meram_unregister(mdev, ch->meram); |
1231 | ch->meram = 0; | |
7caa4342 DHG |
1232 | } |
1233 | ||
cfb4f5d1 MD |
1234 | } |
1235 | ||
1236 | /* stop the lcdc */ | |
8e9bb19e MD |
1237 | if (priv->started) { |
1238 | sh_mobile_lcdc_start_stop(priv, 0); | |
1239 | priv->started = 0; | |
1240 | } | |
b51339ff | 1241 | |
8564557a MD |
1242 | /* stop clocks */ |
1243 | for (k = 0; k < ARRAY_SIZE(priv->ch); k++) | |
1244 | if (priv->ch[k].enabled) | |
1245 | sh_mobile_lcdc_clk_off(priv); | |
cfb4f5d1 MD |
1246 | } |
1247 | ||
c5deac3c LP |
1248 | static int __sh_mobile_lcdc_check_var(struct fb_var_screeninfo *var, |
1249 | struct fb_info *info) | |
1250 | { | |
1251 | if (var->xres > MAX_XRES || var->yres > MAX_YRES) | |
1252 | return -EINVAL; | |
1253 | ||
1254 | /* Make sure the virtual resolution is at least as big as the visible | |
1255 | * resolution. | |
1256 | */ | |
1257 | if (var->xres_virtual < var->xres) | |
1258 | var->xres_virtual = var->xres; | |
1259 | if (var->yres_virtual < var->yres) | |
1260 | var->yres_virtual = var->yres; | |
1261 | ||
1262 | if (sh_mobile_format_is_fourcc(var)) { | |
1263 | const struct sh_mobile_lcdc_format_info *format; | |
1264 | ||
1265 | format = sh_mobile_format_info(var->grayscale); | |
1266 | if (format == NULL) | |
1267 | return -EINVAL; | |
1268 | var->bits_per_pixel = format->bpp; | |
1269 | ||
1270 | /* Default to RGB and JPEG color-spaces for RGB and YUV formats | |
1271 | * respectively. | |
1272 | */ | |
1273 | if (!format->yuv) | |
1274 | var->colorspace = V4L2_COLORSPACE_SRGB; | |
1275 | else if (var->colorspace != V4L2_COLORSPACE_REC709) | |
1276 | var->colorspace = V4L2_COLORSPACE_JPEG; | |
1277 | } else { | |
1278 | if (var->bits_per_pixel <= 16) { /* RGB 565 */ | |
1279 | var->bits_per_pixel = 16; | |
1280 | var->red.offset = 11; | |
1281 | var->red.length = 5; | |
1282 | var->green.offset = 5; | |
1283 | var->green.length = 6; | |
1284 | var->blue.offset = 0; | |
1285 | var->blue.length = 5; | |
1286 | var->transp.offset = 0; | |
1287 | var->transp.length = 0; | |
1288 | } else if (var->bits_per_pixel <= 24) { /* RGB 888 */ | |
1289 | var->bits_per_pixel = 24; | |
1290 | var->red.offset = 16; | |
1291 | var->red.length = 8; | |
1292 | var->green.offset = 8; | |
1293 | var->green.length = 8; | |
1294 | var->blue.offset = 0; | |
1295 | var->blue.length = 8; | |
1296 | var->transp.offset = 0; | |
1297 | var->transp.length = 0; | |
1298 | } else if (var->bits_per_pixel <= 32) { /* RGBA 888 */ | |
1299 | var->bits_per_pixel = 32; | |
1300 | var->red.offset = 16; | |
1301 | var->red.length = 8; | |
1302 | var->green.offset = 8; | |
1303 | var->green.length = 8; | |
1304 | var->blue.offset = 0; | |
1305 | var->blue.length = 8; | |
1306 | var->transp.offset = 24; | |
1307 | var->transp.length = 8; | |
1308 | } else | |
1309 | return -EINVAL; | |
1310 | ||
1311 | var->red.msb_right = 0; | |
1312 | var->green.msb_right = 0; | |
1313 | var->blue.msb_right = 0; | |
1314 | var->transp.msb_right = 0; | |
1315 | } | |
1316 | ||
1317 | /* Make sure we don't exceed our allocated memory. */ | |
1318 | if (var->xres_virtual * var->yres_virtual * var->bits_per_pixel / 8 > | |
1319 | info->fix.smem_len) | |
1320 | return -EINVAL; | |
1321 | ||
1322 | return 0; | |
1323 | } | |
1324 | ||
1325 | /* ----------------------------------------------------------------------------- | |
1326 | * Frame buffer operations - Overlays | |
1327 | */ | |
1328 | ||
1329 | static ssize_t | |
1330 | overlay_alpha_show(struct device *dev, struct device_attribute *attr, char *buf) | |
1331 | { | |
1332 | struct fb_info *info = dev_get_drvdata(dev); | |
1333 | struct sh_mobile_lcdc_overlay *ovl = info->par; | |
1334 | ||
1335 | return scnprintf(buf, PAGE_SIZE, "%u\n", ovl->alpha); | |
1336 | } | |
1337 | ||
1338 | static ssize_t | |
1339 | overlay_alpha_store(struct device *dev, struct device_attribute *attr, | |
1340 | const char *buf, size_t count) | |
1341 | { | |
1342 | struct fb_info *info = dev_get_drvdata(dev); | |
1343 | struct sh_mobile_lcdc_overlay *ovl = info->par; | |
1344 | unsigned int alpha; | |
1345 | char *endp; | |
1346 | ||
1347 | alpha = simple_strtoul(buf, &endp, 10); | |
1348 | if (isspace(*endp)) | |
1349 | endp++; | |
1350 | ||
1351 | if (endp - buf != count) | |
1352 | return -EINVAL; | |
1353 | ||
1354 | if (alpha > 255) | |
1355 | return -EINVAL; | |
1356 | ||
1357 | if (ovl->alpha != alpha) { | |
1358 | ovl->alpha = alpha; | |
1359 | ||
1360 | if (ovl->mode == LCDC_OVERLAY_BLEND && ovl->enabled) | |
1361 | sh_mobile_lcdc_overlay_setup(ovl); | |
1362 | } | |
1363 | ||
1364 | return count; | |
1365 | } | |
1366 | ||
1367 | static ssize_t | |
1368 | overlay_mode_show(struct device *dev, struct device_attribute *attr, char *buf) | |
1369 | { | |
1370 | struct fb_info *info = dev_get_drvdata(dev); | |
1371 | struct sh_mobile_lcdc_overlay *ovl = info->par; | |
1372 | ||
1373 | return scnprintf(buf, PAGE_SIZE, "%u\n", ovl->mode); | |
1374 | } | |
1375 | ||
1376 | static ssize_t | |
1377 | overlay_mode_store(struct device *dev, struct device_attribute *attr, | |
1378 | const char *buf, size_t count) | |
1379 | { | |
1380 | struct fb_info *info = dev_get_drvdata(dev); | |
1381 | struct sh_mobile_lcdc_overlay *ovl = info->par; | |
1382 | unsigned int mode; | |
1383 | char *endp; | |
1384 | ||
1385 | mode = simple_strtoul(buf, &endp, 10); | |
1386 | if (isspace(*endp)) | |
1387 | endp++; | |
1388 | ||
1389 | if (endp - buf != count) | |
1390 | return -EINVAL; | |
1391 | ||
1392 | if (mode != LCDC_OVERLAY_BLEND && mode != LCDC_OVERLAY_ROP3) | |
1393 | return -EINVAL; | |
1394 | ||
1395 | if (ovl->mode != mode) { | |
1396 | ovl->mode = mode; | |
1397 | ||
1398 | if (ovl->enabled) | |
1399 | sh_mobile_lcdc_overlay_setup(ovl); | |
1400 | } | |
1401 | ||
1402 | return count; | |
1403 | } | |
1404 | ||
1405 | static ssize_t | |
1406 | overlay_position_show(struct device *dev, struct device_attribute *attr, | |
1407 | char *buf) | |
1408 | { | |
1409 | struct fb_info *info = dev_get_drvdata(dev); | |
1410 | struct sh_mobile_lcdc_overlay *ovl = info->par; | |
1411 | ||
1412 | return scnprintf(buf, PAGE_SIZE, "%d,%d\n", ovl->pos_x, ovl->pos_y); | |
1413 | } | |
1414 | ||
1415 | static ssize_t | |
1416 | overlay_position_store(struct device *dev, struct device_attribute *attr, | |
1417 | const char *buf, size_t count) | |
1418 | { | |
1419 | struct fb_info *info = dev_get_drvdata(dev); | |
1420 | struct sh_mobile_lcdc_overlay *ovl = info->par; | |
1421 | char *endp; | |
1422 | int pos_x; | |
1423 | int pos_y; | |
1424 | ||
1425 | pos_x = simple_strtol(buf, &endp, 10); | |
1426 | if (*endp != ',') | |
1427 | return -EINVAL; | |
1428 | ||
1429 | pos_y = simple_strtol(endp + 1, &endp, 10); | |
1430 | if (isspace(*endp)) | |
1431 | endp++; | |
1432 | ||
1433 | if (endp - buf != count) | |
1434 | return -EINVAL; | |
1435 | ||
1436 | if (ovl->pos_x != pos_x || ovl->pos_y != pos_y) { | |
1437 | ovl->pos_x = pos_x; | |
1438 | ovl->pos_y = pos_y; | |
1439 | ||
1440 | if (ovl->enabled) | |
1441 | sh_mobile_lcdc_overlay_setup(ovl); | |
1442 | } | |
1443 | ||
1444 | return count; | |
1445 | } | |
1446 | ||
1447 | static ssize_t | |
1448 | overlay_rop3_show(struct device *dev, struct device_attribute *attr, char *buf) | |
1449 | { | |
1450 | struct fb_info *info = dev_get_drvdata(dev); | |
1451 | struct sh_mobile_lcdc_overlay *ovl = info->par; | |
1452 | ||
1453 | return scnprintf(buf, PAGE_SIZE, "%u\n", ovl->rop3); | |
1454 | } | |
1455 | ||
1456 | static ssize_t | |
1457 | overlay_rop3_store(struct device *dev, struct device_attribute *attr, | |
1458 | const char *buf, size_t count) | |
1459 | { | |
1460 | struct fb_info *info = dev_get_drvdata(dev); | |
1461 | struct sh_mobile_lcdc_overlay *ovl = info->par; | |
1462 | unsigned int rop3; | |
1463 | char *endp; | |
1464 | ||
1465 | rop3 = !!simple_strtoul(buf, &endp, 10); | |
1466 | if (isspace(*endp)) | |
1467 | endp++; | |
1468 | ||
1469 | if (endp - buf != count) | |
1470 | return -EINVAL; | |
1471 | ||
1472 | if (rop3 > 255) | |
1473 | return -EINVAL; | |
1474 | ||
1475 | if (ovl->rop3 != rop3) { | |
1476 | ovl->rop3 = rop3; | |
1477 | ||
1478 | if (ovl->mode == LCDC_OVERLAY_ROP3 && ovl->enabled) | |
1479 | sh_mobile_lcdc_overlay_setup(ovl); | |
1480 | } | |
1481 | ||
1482 | return count; | |
1483 | } | |
1484 | ||
1485 | static const struct device_attribute overlay_sysfs_attrs[] = { | |
1486 | __ATTR(ovl_alpha, S_IRUGO|S_IWUSR, | |
1487 | overlay_alpha_show, overlay_alpha_store), | |
1488 | __ATTR(ovl_mode, S_IRUGO|S_IWUSR, | |
1489 | overlay_mode_show, overlay_mode_store), | |
1490 | __ATTR(ovl_position, S_IRUGO|S_IWUSR, | |
1491 | overlay_position_show, overlay_position_store), | |
1492 | __ATTR(ovl_rop3, S_IRUGO|S_IWUSR, | |
1493 | overlay_rop3_show, overlay_rop3_store), | |
1494 | }; | |
1495 | ||
1496 | static const struct fb_fix_screeninfo sh_mobile_lcdc_overlay_fix = { | |
1497 | .id = "SH Mobile LCDC", | |
1498 | .type = FB_TYPE_PACKED_PIXELS, | |
1499 | .visual = FB_VISUAL_TRUECOLOR, | |
1500 | .accel = FB_ACCEL_NONE, | |
1501 | .xpanstep = 0, | |
1502 | .ypanstep = 1, | |
1503 | .ywrapstep = 0, | |
1504 | .capabilities = FB_CAP_FOURCC, | |
1505 | }; | |
1506 | ||
1507 | static int sh_mobile_lcdc_overlay_pan(struct fb_var_screeninfo *var, | |
1508 | struct fb_info *info) | |
1509 | { | |
1510 | struct sh_mobile_lcdc_overlay *ovl = info->par; | |
1511 | unsigned long base_addr_y; | |
1512 | unsigned long base_addr_c; | |
1513 | unsigned long pan_offset; | |
1514 | unsigned long c_offset; | |
1515 | ||
1516 | if (!ovl->format->yuv) | |
1517 | pan_offset = var->yoffset * ovl->pitch | |
1518 | + var->xoffset * (ovl->format->bpp / 8); | |
1519 | else | |
1520 | pan_offset = var->yoffset * ovl->pitch + var->xoffset; | |
1521 | ||
1522 | if (pan_offset == ovl->pan_offset) | |
1523 | return 0; /* No change, do nothing */ | |
1524 | ||
1525 | /* Set the source address for the next refresh */ | |
1526 | base_addr_y = ovl->dma_handle + pan_offset; | |
1527 | ||
1528 | ovl->base_addr_y = base_addr_y; | |
1529 | ovl->base_addr_c = base_addr_y; | |
1530 | ||
1531 | if (ovl->format->yuv) { | |
1532 | /* Set Y offset */ | |
1533 | c_offset = var->yoffset * ovl->pitch | |
1534 | * (ovl->format->bpp - 8) / 8; | |
1535 | base_addr_c = ovl->dma_handle | |
1536 | + ovl->xres * ovl->yres_virtual | |
1537 | + c_offset; | |
1538 | /* Set X offset */ | |
1539 | if (ovl->format->fourcc == V4L2_PIX_FMT_NV24) | |
1540 | base_addr_c += 2 * var->xoffset; | |
1541 | else | |
1542 | base_addr_c += var->xoffset; | |
1543 | ||
1544 | ovl->base_addr_c = base_addr_c; | |
1545 | } | |
1546 | ||
1547 | lcdc_write_overlay(ovl, LDBnBSAYR(ovl->index), ovl->base_addr_y); | |
1548 | lcdc_write_overlay(ovl, LDBnBSACR(ovl->index), ovl->base_addr_c); | |
1549 | ||
1550 | ovl->pan_offset = pan_offset; | |
1551 | ||
1552 | return 0; | |
1553 | } | |
1554 | ||
1555 | static int sh_mobile_lcdc_overlay_ioctl(struct fb_info *info, unsigned int cmd, | |
1556 | unsigned long arg) | |
1557 | { | |
1558 | struct sh_mobile_lcdc_overlay *ovl = info->par; | |
1559 | ||
1560 | switch (cmd) { | |
1561 | case FBIO_WAITFORVSYNC: | |
1562 | return sh_mobile_lcdc_wait_for_vsync(ovl->channel); | |
1563 | ||
1564 | default: | |
1565 | return -ENOIOCTLCMD; | |
1566 | } | |
1567 | } | |
1568 | ||
1569 | static int sh_mobile_lcdc_overlay_check_var(struct fb_var_screeninfo *var, | |
1570 | struct fb_info *info) | |
1571 | { | |
1572 | return __sh_mobile_lcdc_check_var(var, info); | |
1573 | } | |
1574 | ||
1575 | static int sh_mobile_lcdc_overlay_set_par(struct fb_info *info) | |
1576 | { | |
1577 | struct sh_mobile_lcdc_overlay *ovl = info->par; | |
1578 | ||
1579 | ovl->format = | |
1580 | sh_mobile_format_info(sh_mobile_format_fourcc(&info->var)); | |
1581 | ||
1582 | ovl->xres = info->var.xres; | |
1583 | ovl->xres_virtual = info->var.xres_virtual; | |
1584 | ovl->yres = info->var.yres; | |
1585 | ovl->yres_virtual = info->var.yres_virtual; | |
1586 | ||
1587 | if (ovl->format->yuv) | |
1588 | ovl->pitch = info->var.xres; | |
1589 | else | |
1590 | ovl->pitch = info->var.xres * ovl->format->bpp / 8; | |
1591 | ||
1592 | sh_mobile_lcdc_overlay_setup(ovl); | |
1593 | ||
1594 | info->fix.line_length = ovl->pitch; | |
1595 | ||
1596 | if (sh_mobile_format_is_fourcc(&info->var)) { | |
1597 | info->fix.type = FB_TYPE_FOURCC; | |
1598 | info->fix.visual = FB_VISUAL_FOURCC; | |
1599 | } else { | |
1600 | info->fix.type = FB_TYPE_PACKED_PIXELS; | |
1601 | info->fix.visual = FB_VISUAL_TRUECOLOR; | |
1602 | } | |
1603 | ||
1604 | return 0; | |
1605 | } | |
1606 | ||
1607 | /* Overlay blanking. Disable the overlay when blanked. */ | |
1608 | static int sh_mobile_lcdc_overlay_blank(int blank, struct fb_info *info) | |
1609 | { | |
1610 | struct sh_mobile_lcdc_overlay *ovl = info->par; | |
1611 | ||
1612 | ovl->enabled = !blank; | |
1613 | sh_mobile_lcdc_overlay_setup(ovl); | |
1614 | ||
1615 | /* Prevent the backlight from receiving a blanking event by returning | |
1616 | * a non-zero value. | |
1617 | */ | |
1618 | return 1; | |
1619 | } | |
1620 | ||
1621 | static struct fb_ops sh_mobile_lcdc_overlay_ops = { | |
1622 | .owner = THIS_MODULE, | |
1623 | .fb_read = fb_sys_read, | |
1624 | .fb_write = fb_sys_write, | |
1625 | .fb_fillrect = sys_fillrect, | |
1626 | .fb_copyarea = sys_copyarea, | |
1627 | .fb_imageblit = sys_imageblit, | |
1628 | .fb_blank = sh_mobile_lcdc_overlay_blank, | |
1629 | .fb_pan_display = sh_mobile_lcdc_overlay_pan, | |
1630 | .fb_ioctl = sh_mobile_lcdc_overlay_ioctl, | |
1631 | .fb_check_var = sh_mobile_lcdc_overlay_check_var, | |
1632 | .fb_set_par = sh_mobile_lcdc_overlay_set_par, | |
1633 | }; | |
1634 | ||
1635 | static void | |
1636 | sh_mobile_lcdc_overlay_fb_unregister(struct sh_mobile_lcdc_overlay *ovl) | |
1637 | { | |
1638 | struct fb_info *info = ovl->info; | |
1639 | ||
1640 | if (info == NULL || info->dev == NULL) | |
1641 | return; | |
1642 | ||
1643 | unregister_framebuffer(ovl->info); | |
1644 | } | |
1645 | ||
1646 | static int __devinit | |
1647 | sh_mobile_lcdc_overlay_fb_register(struct sh_mobile_lcdc_overlay *ovl) | |
1648 | { | |
1649 | struct sh_mobile_lcdc_priv *lcdc = ovl->channel->lcdc; | |
1650 | struct fb_info *info = ovl->info; | |
1651 | unsigned int i; | |
1652 | int ret; | |
1653 | ||
1654 | if (info == NULL) | |
1655 | return 0; | |
1656 | ||
1657 | ret = register_framebuffer(info); | |
1658 | if (ret < 0) | |
1659 | return ret; | |
1660 | ||
1661 | dev_info(lcdc->dev, "registered %s/overlay %u as %dx%d %dbpp.\n", | |
1662 | dev_name(lcdc->dev), ovl->index, info->var.xres, | |
1663 | info->var.yres, info->var.bits_per_pixel); | |
1664 | ||
1665 | for (i = 0; i < ARRAY_SIZE(overlay_sysfs_attrs); ++i) { | |
1666 | ret = device_create_file(info->dev, &overlay_sysfs_attrs[i]); | |
1667 | if (ret < 0) | |
1668 | return ret; | |
1669 | } | |
1670 | ||
1671 | return 0; | |
1672 | } | |
1673 | ||
1674 | static void | |
1675 | sh_mobile_lcdc_overlay_fb_cleanup(struct sh_mobile_lcdc_overlay *ovl) | |
1676 | { | |
1677 | struct fb_info *info = ovl->info; | |
1678 | ||
1679 | if (info == NULL || info->device == NULL) | |
1680 | return; | |
1681 | ||
1682 | framebuffer_release(info); | |
1683 | } | |
1684 | ||
1685 | static int __devinit | |
1686 | sh_mobile_lcdc_overlay_fb_init(struct sh_mobile_lcdc_overlay *ovl) | |
1687 | { | |
1688 | struct sh_mobile_lcdc_priv *priv = ovl->channel->lcdc; | |
1689 | struct fb_var_screeninfo *var; | |
1690 | struct fb_info *info; | |
1691 | ||
1692 | /* Allocate and initialize the frame buffer device. */ | |
1693 | info = framebuffer_alloc(0, priv->dev); | |
1694 | if (info == NULL) { | |
1695 | dev_err(priv->dev, "unable to allocate fb_info\n"); | |
1696 | return -ENOMEM; | |
1697 | } | |
1698 | ||
1699 | ovl->info = info; | |
1700 | ||
1701 | info->flags = FBINFO_FLAG_DEFAULT; | |
1702 | info->fbops = &sh_mobile_lcdc_overlay_ops; | |
1703 | info->device = priv->dev; | |
1704 | info->screen_base = ovl->fb_mem; | |
1705 | info->par = ovl; | |
1706 | ||
1707 | /* Initialize fixed screen information. Restrict pan to 2 lines steps | |
1708 | * for NV12 and NV21. | |
1709 | */ | |
1710 | info->fix = sh_mobile_lcdc_overlay_fix; | |
1711 | snprintf(info->fix.id, sizeof(info->fix.id), | |
1712 | "SH Mobile LCDC Overlay %u", ovl->index); | |
1713 | info->fix.smem_start = ovl->dma_handle; | |
1714 | info->fix.smem_len = ovl->fb_size; | |
1715 | info->fix.line_length = ovl->pitch; | |
1716 | ||
1717 | if (ovl->format->yuv) | |
1718 | info->fix.visual = FB_VISUAL_FOURCC; | |
1719 | else | |
1720 | info->fix.visual = FB_VISUAL_TRUECOLOR; | |
1721 | ||
1722 | if (ovl->format->fourcc == V4L2_PIX_FMT_NV12 || | |
1723 | ovl->format->fourcc == V4L2_PIX_FMT_NV21) | |
1724 | info->fix.ypanstep = 2; | |
1725 | ||
1726 | /* Initialize variable screen information. */ | |
1727 | var = &info->var; | |
1728 | memset(var, 0, sizeof(*var)); | |
1729 | var->xres = ovl->xres; | |
1730 | var->yres = ovl->yres; | |
1731 | var->xres_virtual = ovl->xres_virtual; | |
1732 | var->yres_virtual = ovl->yres_virtual; | |
1733 | var->activate = FB_ACTIVATE_NOW; | |
1734 | ||
1735 | /* Use the legacy API by default for RGB formats, and the FOURCC API | |
1736 | * for YUV formats. | |
1737 | */ | |
1738 | if (!ovl->format->yuv) | |
1739 | var->bits_per_pixel = ovl->format->bpp; | |
1740 | else | |
1741 | var->grayscale = ovl->format->fourcc; | |
1742 | ||
1743 | return sh_mobile_lcdc_overlay_check_var(var, info); | |
1744 | } | |
1745 | ||
f1f60b5f | 1746 | /* ----------------------------------------------------------------------------- |
c5deac3c | 1747 | * Frame buffer operations - main frame buffer |
f1f60b5f | 1748 | */ |
cfb4f5d1 MD |
1749 | |
1750 | static int sh_mobile_lcdc_setcolreg(u_int regno, | |
1751 | u_int red, u_int green, u_int blue, | |
1752 | u_int transp, struct fb_info *info) | |
1753 | { | |
1754 | u32 *palette = info->pseudo_palette; | |
1755 | ||
1756 | if (regno >= PALETTE_NR) | |
1757 | return -EINVAL; | |
1758 | ||
1759 | /* only FB_VISUAL_TRUECOLOR supported */ | |
1760 | ||
1761 | red >>= 16 - info->var.red.length; | |
1762 | green >>= 16 - info->var.green.length; | |
1763 | blue >>= 16 - info->var.blue.length; | |
1764 | transp >>= 16 - info->var.transp.length; | |
1765 | ||
1766 | palette[regno] = (red << info->var.red.offset) | | |
1767 | (green << info->var.green.offset) | | |
1768 | (blue << info->var.blue.offset) | | |
1769 | (transp << info->var.transp.offset); | |
1770 | ||
1771 | return 0; | |
1772 | } | |
1773 | ||
3281e54c | 1774 | static const struct fb_fix_screeninfo sh_mobile_lcdc_fix = { |
cfb4f5d1 MD |
1775 | .id = "SH Mobile LCDC", |
1776 | .type = FB_TYPE_PACKED_PIXELS, | |
1777 | .visual = FB_VISUAL_TRUECOLOR, | |
1778 | .accel = FB_ACCEL_NONE, | |
9dd38819 PE |
1779 | .xpanstep = 0, |
1780 | .ypanstep = 1, | |
1781 | .ywrapstep = 0, | |
edd153a3 | 1782 | .capabilities = FB_CAP_FOURCC, |
cfb4f5d1 MD |
1783 | }; |
1784 | ||
8564557a MD |
1785 | static void sh_mobile_lcdc_fillrect(struct fb_info *info, |
1786 | const struct fb_fillrect *rect) | |
1787 | { | |
1788 | sys_fillrect(info, rect); | |
1789 | sh_mobile_lcdc_deferred_io_touch(info); | |
1790 | } | |
1791 | ||
1792 | static void sh_mobile_lcdc_copyarea(struct fb_info *info, | |
1793 | const struct fb_copyarea *area) | |
1794 | { | |
1795 | sys_copyarea(info, area); | |
1796 | sh_mobile_lcdc_deferred_io_touch(info); | |
1797 | } | |
1798 | ||
1799 | static void sh_mobile_lcdc_imageblit(struct fb_info *info, | |
1800 | const struct fb_image *image) | |
1801 | { | |
1802 | sys_imageblit(info, image); | |
1803 | sh_mobile_lcdc_deferred_io_touch(info); | |
1804 | } | |
1805 | ||
d7ad3342 LP |
1806 | static int sh_mobile_lcdc_pan(struct fb_var_screeninfo *var, |
1807 | struct fb_info *info) | |
9dd38819 PE |
1808 | { |
1809 | struct sh_mobile_lcdc_chan *ch = info->par; | |
92e1f9a7 PE |
1810 | struct sh_mobile_lcdc_priv *priv = ch->lcdc; |
1811 | unsigned long ldrcntr; | |
1812 | unsigned long new_pan_offset; | |
53b50314 DHG |
1813 | unsigned long base_addr_y, base_addr_c; |
1814 | unsigned long c_offset; | |
92e1f9a7 | 1815 | |
58f03d99 LP |
1816 | if (!ch->format->yuv) |
1817 | new_pan_offset = var->yoffset * ch->pitch | |
1818 | + var->xoffset * (ch->format->bpp / 8); | |
53b50314 | 1819 | else |
58f03d99 | 1820 | new_pan_offset = var->yoffset * ch->pitch + var->xoffset; |
9dd38819 | 1821 | |
92e1f9a7 | 1822 | if (new_pan_offset == ch->pan_offset) |
9dd38819 PE |
1823 | return 0; /* No change, do nothing */ |
1824 | ||
92e1f9a7 | 1825 | ldrcntr = lcdc_read(priv, _LDRCNTR); |
9dd38819 | 1826 | |
92e1f9a7 | 1827 | /* Set the source address for the next refresh */ |
53b50314 | 1828 | base_addr_y = ch->dma_handle + new_pan_offset; |
58f03d99 | 1829 | if (ch->format->yuv) { |
53b50314 | 1830 | /* Set y offset */ |
58f03d99 LP |
1831 | c_offset = var->yoffset * ch->pitch |
1832 | * (ch->format->bpp - 8) / 8; | |
1833 | base_addr_c = ch->dma_handle + ch->xres * ch->yres_virtual | |
dc1d5ada | 1834 | + c_offset; |
53b50314 | 1835 | /* Set x offset */ |
fc9e78e6 | 1836 | if (ch->format->fourcc == V4L2_PIX_FMT_NV24) |
53b50314 DHG |
1837 | base_addr_c += 2 * var->xoffset; |
1838 | else | |
1839 | base_addr_c += var->xoffset; | |
49d79ba2 | 1840 | } |
53b50314 | 1841 | |
48110050 | 1842 | if (ch->meram) { |
7caa4342 | 1843 | struct sh_mobile_meram_info *mdev; |
7caa4342 | 1844 | |
7caa4342 | 1845 | mdev = priv->meram_dev; |
cdf88b90 | 1846 | mdev->ops->meram_update(mdev, ch->meram, |
7caa4342 | 1847 | base_addr_y, base_addr_c, |
49d79ba2 | 1848 | &base_addr_y, &base_addr_c); |
49d79ba2 | 1849 | } |
7caa4342 | 1850 | |
49d79ba2 LP |
1851 | ch->base_addr_y = base_addr_y; |
1852 | ch->base_addr_c = base_addr_c; | |
7caa4342 | 1853 | |
49d79ba2 | 1854 | lcdc_write_chan_mirror(ch, LDSA1R, base_addr_y); |
58f03d99 | 1855 | if (ch->format->yuv) |
49d79ba2 | 1856 | lcdc_write_chan_mirror(ch, LDSA2R, base_addr_c); |
53b50314 | 1857 | |
92e1f9a7 PE |
1858 | if (lcdc_chan_is_sublcd(ch)) |
1859 | lcdc_write(ch->lcdc, _LDRCNTR, ldrcntr ^ LDRCNTR_SRS); | |
1860 | else | |
1861 | lcdc_write(ch->lcdc, _LDRCNTR, ldrcntr ^ LDRCNTR_MRS); | |
1862 | ||
1863 | ch->pan_offset = new_pan_offset; | |
1864 | ||
1865 | sh_mobile_lcdc_deferred_io_touch(info); | |
9dd38819 PE |
1866 | |
1867 | return 0; | |
1868 | } | |
1869 | ||
d7ad3342 LP |
1870 | static int sh_mobile_lcdc_ioctl(struct fb_info *info, unsigned int cmd, |
1871 | unsigned long arg) | |
40331b21 | 1872 | { |
d7ad3342 | 1873 | struct sh_mobile_lcdc_chan *ch = info->par; |
40331b21 PE |
1874 | int retval; |
1875 | ||
1876 | switch (cmd) { | |
1877 | case FBIO_WAITFORVSYNC: | |
d7ad3342 | 1878 | retval = sh_mobile_lcdc_wait_for_vsync(ch); |
40331b21 PE |
1879 | break; |
1880 | ||
1881 | default: | |
1882 | retval = -ENOIOCTLCMD; | |
1883 | break; | |
1884 | } | |
1885 | return retval; | |
1886 | } | |
1887 | ||
dd210503 GL |
1888 | static void sh_mobile_fb_reconfig(struct fb_info *info) |
1889 | { | |
1890 | struct sh_mobile_lcdc_chan *ch = info->par; | |
2d04559d LP |
1891 | struct fb_var_screeninfo var; |
1892 | struct fb_videomode mode; | |
dd210503 GL |
1893 | struct fb_event event; |
1894 | int evnt = FB_EVENT_MODE_CHANGE_ALL; | |
1895 | ||
1896 | if (ch->use_count > 1 || (ch->use_count == 1 && !info->fbcon_par)) | |
1897 | /* More framebuffer users are active */ | |
1898 | return; | |
1899 | ||
2d04559d | 1900 | fb_var_to_videomode(&mode, &info->var); |
dd210503 | 1901 | |
2d04559d | 1902 | if (fb_mode_is_equal(&ch->display.mode, &mode)) |
dd210503 GL |
1903 | return; |
1904 | ||
1905 | /* Display has been re-plugged, framebuffer is free now, reconfigure */ | |
2d04559d LP |
1906 | var = info->var; |
1907 | fb_videomode_to_var(&var, &ch->display.mode); | |
1908 | var.width = ch->display.width; | |
1909 | var.height = ch->display.height; | |
1910 | var.activate = FB_ACTIVATE_NOW; | |
1911 | ||
1912 | if (fb_set_var(info, &var) < 0) | |
dd210503 GL |
1913 | /* Couldn't reconfigure, hopefully, can continue as before */ |
1914 | return; | |
1915 | ||
dd210503 GL |
1916 | /* |
1917 | * fb_set_var() calls the notifier change internally, only if | |
1918 | * FBINFO_MISC_USEREVENT flag is set. Since we do not want to fake a | |
1919 | * user event, we have to call the chain ourselves. | |
1920 | */ | |
1921 | event.info = info; | |
2d04559d | 1922 | event.data = &ch->display.mode; |
dd210503 GL |
1923 | fb_notifier_call_chain(evnt, &event); |
1924 | } | |
1925 | ||
1926 | /* | |
1927 | * Locking: both .fb_release() and .fb_open() are called with info->lock held if | |
1928 | * user == 1, or with console sem held, if user == 0. | |
1929 | */ | |
d7ad3342 | 1930 | static int sh_mobile_lcdc_release(struct fb_info *info, int user) |
dd210503 GL |
1931 | { |
1932 | struct sh_mobile_lcdc_chan *ch = info->par; | |
1933 | ||
1934 | mutex_lock(&ch->open_lock); | |
1935 | dev_dbg(info->dev, "%s(): %d users\n", __func__, ch->use_count); | |
1936 | ||
1937 | ch->use_count--; | |
1938 | ||
1939 | /* Nothing to reconfigure, when called from fbcon */ | |
1940 | if (user) { | |
ac751efa | 1941 | console_lock(); |
dd210503 | 1942 | sh_mobile_fb_reconfig(info); |
ac751efa | 1943 | console_unlock(); |
dd210503 GL |
1944 | } |
1945 | ||
1946 | mutex_unlock(&ch->open_lock); | |
1947 | ||
1948 | return 0; | |
1949 | } | |
1950 | ||
d7ad3342 | 1951 | static int sh_mobile_lcdc_open(struct fb_info *info, int user) |
dd210503 GL |
1952 | { |
1953 | struct sh_mobile_lcdc_chan *ch = info->par; | |
1954 | ||
1955 | mutex_lock(&ch->open_lock); | |
1956 | ch->use_count++; | |
1957 | ||
1958 | dev_dbg(info->dev, "%s(): %d users\n", __func__, ch->use_count); | |
1959 | mutex_unlock(&ch->open_lock); | |
1960 | ||
1961 | return 0; | |
1962 | } | |
1963 | ||
d7ad3342 LP |
1964 | static int sh_mobile_lcdc_check_var(struct fb_var_screeninfo *var, |
1965 | struct fb_info *info) | |
dd210503 GL |
1966 | { |
1967 | struct sh_mobile_lcdc_chan *ch = info->par; | |
417d4827 | 1968 | struct sh_mobile_lcdc_priv *p = ch->lcdc; |
03862194 LP |
1969 | unsigned int best_dist = (unsigned int)-1; |
1970 | unsigned int best_xres = 0; | |
1971 | unsigned int best_yres = 0; | |
1972 | unsigned int i; | |
c5deac3c | 1973 | int ret; |
03862194 LP |
1974 | |
1975 | /* If board code provides us with a list of available modes, make sure | |
1976 | * we use one of them. Find the mode closest to the requested one. The | |
1977 | * distance between two modes is defined as the size of the | |
1978 | * non-overlapping parts of the two rectangles. | |
1979 | */ | |
b5ef967d LP |
1980 | for (i = 0; i < ch->cfg->num_modes; ++i) { |
1981 | const struct fb_videomode *mode = &ch->cfg->lcd_modes[i]; | |
03862194 LP |
1982 | unsigned int dist; |
1983 | ||
1984 | /* We can only round up. */ | |
1985 | if (var->xres > mode->xres || var->yres > mode->yres) | |
1986 | continue; | |
1987 | ||
1988 | dist = var->xres * var->yres + mode->xres * mode->yres | |
1989 | - 2 * min(var->xres, mode->xres) | |
1990 | * min(var->yres, mode->yres); | |
1991 | ||
1992 | if (dist < best_dist) { | |
1993 | best_xres = mode->xres; | |
1994 | best_yres = mode->yres; | |
1995 | best_dist = dist; | |
1996 | } | |
dd210503 | 1997 | } |
417d4827 | 1998 | |
03862194 | 1999 | /* If no available mode can be used, return an error. */ |
b5ef967d | 2000 | if (ch->cfg->num_modes != 0) { |
03862194 LP |
2001 | if (best_dist == (unsigned int)-1) |
2002 | return -EINVAL; | |
2003 | ||
2004 | var->xres = best_xres; | |
2005 | var->yres = best_yres; | |
2006 | } | |
2007 | ||
c5deac3c LP |
2008 | ret = __sh_mobile_lcdc_check_var(var, info); |
2009 | if (ret < 0) | |
2010 | return ret; | |
03862194 | 2011 | |
edd153a3 LP |
2012 | /* only accept the forced_fourcc for dual channel configurations */ |
2013 | if (p->forced_fourcc && | |
2014 | p->forced_fourcc != sh_mobile_format_fourcc(var)) | |
417d4827 | 2015 | return -EINVAL; |
417d4827 | 2016 | |
dd210503 GL |
2017 | return 0; |
2018 | } | |
40331b21 | 2019 | |
d7ad3342 | 2020 | static int sh_mobile_lcdc_set_par(struct fb_info *info) |
ed5bebf2 LP |
2021 | { |
2022 | struct sh_mobile_lcdc_chan *ch = info->par; | |
2023 | int ret; | |
2024 | ||
2025 | sh_mobile_lcdc_stop(ch->lcdc); | |
91fba48d | 2026 | |
fc9e78e6 | 2027 | ch->format = sh_mobile_format_info(sh_mobile_format_fourcc(&info->var)); |
58f03d99 LP |
2028 | ch->colorspace = info->var.colorspace; |
2029 | ||
2030 | ch->xres = info->var.xres; | |
2031 | ch->xres_virtual = info->var.xres_virtual; | |
2032 | ch->yres = info->var.yres; | |
2033 | ch->yres_virtual = info->var.yres_virtual; | |
2034 | ||
2035 | if (ch->format->yuv) | |
2036 | ch->pitch = info->var.xres; | |
2037 | else | |
2038 | ch->pitch = info->var.xres * ch->format->bpp / 8; | |
fc9e78e6 | 2039 | |
ed5bebf2 | 2040 | ret = sh_mobile_lcdc_start(ch->lcdc); |
58f03d99 | 2041 | if (ret < 0) |
ed5bebf2 | 2042 | dev_err(info->dev, "%s: unable to restart LCDC\n", __func__); |
58f03d99 LP |
2043 | |
2044 | info->fix.line_length = ch->pitch; | |
ed5bebf2 | 2045 | |
edd153a3 LP |
2046 | if (sh_mobile_format_is_fourcc(&info->var)) { |
2047 | info->fix.type = FB_TYPE_FOURCC; | |
2048 | info->fix.visual = FB_VISUAL_FOURCC; | |
2049 | } else { | |
2050 | info->fix.type = FB_TYPE_PACKED_PIXELS; | |
2051 | info->fix.visual = FB_VISUAL_TRUECOLOR; | |
2052 | } | |
2053 | ||
ed5bebf2 LP |
2054 | return ret; |
2055 | } | |
2056 | ||
8857b9aa AC |
2057 | /* |
2058 | * Screen blanking. Behavior is as follows: | |
2059 | * FB_BLANK_UNBLANK: screen unblanked, clocks enabled | |
2060 | * FB_BLANK_NORMAL: screen blanked, clocks enabled | |
2061 | * FB_BLANK_VSYNC, | |
2062 | * FB_BLANK_HSYNC, | |
2063 | * FB_BLANK_POWEROFF: screen blanked, clocks disabled | |
2064 | */ | |
2065 | static int sh_mobile_lcdc_blank(int blank, struct fb_info *info) | |
2066 | { | |
2067 | struct sh_mobile_lcdc_chan *ch = info->par; | |
2068 | struct sh_mobile_lcdc_priv *p = ch->lcdc; | |
2069 | ||
2070 | /* blank the screen? */ | |
2071 | if (blank > FB_BLANK_UNBLANK && ch->blank_status == FB_BLANK_UNBLANK) { | |
2072 | struct fb_fillrect rect = { | |
58f03d99 LP |
2073 | .width = ch->xres, |
2074 | .height = ch->yres, | |
8857b9aa AC |
2075 | }; |
2076 | sh_mobile_lcdc_fillrect(info, &rect); | |
2077 | } | |
2078 | /* turn clocks on? */ | |
2079 | if (blank <= FB_BLANK_NORMAL && ch->blank_status > FB_BLANK_NORMAL) { | |
2080 | sh_mobile_lcdc_clk_on(p); | |
2081 | } | |
2082 | /* turn clocks off? */ | |
2083 | if (blank > FB_BLANK_NORMAL && ch->blank_status <= FB_BLANK_NORMAL) { | |
2084 | /* make sure the screen is updated with the black fill before | |
2085 | * switching the clocks off. one vsync is not enough since | |
2086 | * blanking may occur in the middle of a refresh. deferred io | |
2087 | * mode will reenable the clocks and update the screen in time, | |
2088 | * so it does not need this. */ | |
2089 | if (!info->fbdefio) { | |
d7ad3342 LP |
2090 | sh_mobile_lcdc_wait_for_vsync(ch); |
2091 | sh_mobile_lcdc_wait_for_vsync(ch); | |
8857b9aa AC |
2092 | } |
2093 | sh_mobile_lcdc_clk_off(p); | |
2094 | } | |
2095 | ||
2096 | ch->blank_status = blank; | |
2097 | return 0; | |
2098 | } | |
2099 | ||
cfb4f5d1 | 2100 | static struct fb_ops sh_mobile_lcdc_ops = { |
9dd38819 | 2101 | .owner = THIS_MODULE, |
cfb4f5d1 | 2102 | .fb_setcolreg = sh_mobile_lcdc_setcolreg, |
2540c111 MD |
2103 | .fb_read = fb_sys_read, |
2104 | .fb_write = fb_sys_write, | |
8564557a MD |
2105 | .fb_fillrect = sh_mobile_lcdc_fillrect, |
2106 | .fb_copyarea = sh_mobile_lcdc_copyarea, | |
2107 | .fb_imageblit = sh_mobile_lcdc_imageblit, | |
8857b9aa | 2108 | .fb_blank = sh_mobile_lcdc_blank, |
d7ad3342 LP |
2109 | .fb_pan_display = sh_mobile_lcdc_pan, |
2110 | .fb_ioctl = sh_mobile_lcdc_ioctl, | |
2111 | .fb_open = sh_mobile_lcdc_open, | |
2112 | .fb_release = sh_mobile_lcdc_release, | |
2113 | .fb_check_var = sh_mobile_lcdc_check_var, | |
2114 | .fb_set_par = sh_mobile_lcdc_set_par, | |
cfb4f5d1 MD |
2115 | }; |
2116 | ||
a67f379d LP |
2117 | static void |
2118 | sh_mobile_lcdc_channel_fb_unregister(struct sh_mobile_lcdc_chan *ch) | |
2119 | { | |
2120 | if (ch->info && ch->info->dev) | |
2121 | unregister_framebuffer(ch->info); | |
2122 | } | |
2123 | ||
2124 | static int __devinit | |
2125 | sh_mobile_lcdc_channel_fb_register(struct sh_mobile_lcdc_chan *ch) | |
2126 | { | |
2127 | struct fb_info *info = ch->info; | |
2128 | int ret; | |
2129 | ||
2130 | if (info->fbdefio) { | |
2131 | ch->sglist = vmalloc(sizeof(struct scatterlist) * | |
2132 | ch->fb_size >> PAGE_SHIFT); | |
2133 | if (!ch->sglist) { | |
2134 | dev_err(ch->lcdc->dev, "cannot allocate sglist\n"); | |
2135 | return -ENOMEM; | |
2136 | } | |
2137 | } | |
2138 | ||
2139 | info->bl_dev = ch->bl; | |
2140 | ||
2141 | ret = register_framebuffer(info); | |
2142 | if (ret < 0) | |
2143 | return ret; | |
2144 | ||
2145 | dev_info(ch->lcdc->dev, "registered %s/%s as %dx%d %dbpp.\n", | |
b5ef967d | 2146 | dev_name(ch->lcdc->dev), (ch->cfg->chan == LCDC_CHAN_MAINLCD) ? |
a67f379d LP |
2147 | "mainlcd" : "sublcd", info->var.xres, info->var.yres, |
2148 | info->var.bits_per_pixel); | |
2149 | ||
2150 | /* deferred io mode: disable clock to save power */ | |
2151 | if (info->fbdefio || info->state == FBINFO_STATE_SUSPENDED) | |
2152 | sh_mobile_lcdc_clk_off(ch->lcdc); | |
2153 | ||
2154 | return ret; | |
2155 | } | |
2156 | ||
2157 | static void | |
2158 | sh_mobile_lcdc_channel_fb_cleanup(struct sh_mobile_lcdc_chan *ch) | |
2159 | { | |
2160 | struct fb_info *info = ch->info; | |
2161 | ||
2162 | if (!info || !info->device) | |
2163 | return; | |
2164 | ||
2165 | if (ch->sglist) | |
2166 | vfree(ch->sglist); | |
2167 | ||
2168 | fb_dealloc_cmap(&info->cmap); | |
2169 | framebuffer_release(info); | |
2170 | } | |
2171 | ||
2172 | static int __devinit | |
2173 | sh_mobile_lcdc_channel_fb_init(struct sh_mobile_lcdc_chan *ch, | |
2174 | const struct fb_videomode *mode, | |
2175 | unsigned int num_modes) | |
2176 | { | |
2177 | struct sh_mobile_lcdc_priv *priv = ch->lcdc; | |
2178 | struct fb_var_screeninfo *var; | |
2179 | struct fb_info *info; | |
2180 | int ret; | |
2181 | ||
2182 | /* Allocate and initialize the frame buffer device. Create the modes | |
2183 | * list and allocate the color map. | |
2184 | */ | |
2185 | info = framebuffer_alloc(0, priv->dev); | |
2186 | if (info == NULL) { | |
2187 | dev_err(priv->dev, "unable to allocate fb_info\n"); | |
2188 | return -ENOMEM; | |
2189 | } | |
2190 | ||
2191 | ch->info = info; | |
2192 | ||
2193 | info->flags = FBINFO_FLAG_DEFAULT; | |
2194 | info->fbops = &sh_mobile_lcdc_ops; | |
2195 | info->device = priv->dev; | |
2196 | info->screen_base = ch->fb_mem; | |
2197 | info->pseudo_palette = &ch->pseudo_palette; | |
2198 | info->par = ch; | |
2199 | ||
2200 | fb_videomode_to_modelist(mode, num_modes, &info->modelist); | |
2201 | ||
2202 | ret = fb_alloc_cmap(&info->cmap, PALETTE_NR, 0); | |
2203 | if (ret < 0) { | |
2204 | dev_err(priv->dev, "unable to allocate cmap\n"); | |
2205 | return ret; | |
2206 | } | |
2207 | ||
2208 | /* Initialize fixed screen information. Restrict pan to 2 lines steps | |
2209 | * for NV12 and NV21. | |
2210 | */ | |
2211 | info->fix = sh_mobile_lcdc_fix; | |
2212 | info->fix.smem_start = ch->dma_handle; | |
2213 | info->fix.smem_len = ch->fb_size; | |
58f03d99 LP |
2214 | info->fix.line_length = ch->pitch; |
2215 | ||
2216 | if (ch->format->yuv) | |
2217 | info->fix.visual = FB_VISUAL_FOURCC; | |
2218 | else | |
2219 | info->fix.visual = FB_VISUAL_TRUECOLOR; | |
2220 | ||
a67f379d LP |
2221 | if (ch->format->fourcc == V4L2_PIX_FMT_NV12 || |
2222 | ch->format->fourcc == V4L2_PIX_FMT_NV21) | |
2223 | info->fix.ypanstep = 2; | |
2224 | ||
2225 | /* Initialize variable screen information using the first mode as | |
2226 | * default. The default Y virtual resolution is twice the panel size to | |
2227 | * allow for double-buffering. | |
2228 | */ | |
2229 | var = &info->var; | |
2230 | fb_videomode_to_var(var, mode); | |
b5ef967d LP |
2231 | var->width = ch->cfg->panel_cfg.width; |
2232 | var->height = ch->cfg->panel_cfg.height; | |
a67f379d LP |
2233 | var->yres_virtual = var->yres * 2; |
2234 | var->activate = FB_ACTIVATE_NOW; | |
2235 | ||
2236 | /* Use the legacy API by default for RGB formats, and the FOURCC API | |
2237 | * for YUV formats. | |
2238 | */ | |
2239 | if (!ch->format->yuv) | |
2240 | var->bits_per_pixel = ch->format->bpp; | |
2241 | else | |
2242 | var->grayscale = ch->format->fourcc; | |
2243 | ||
d7ad3342 | 2244 | ret = sh_mobile_lcdc_check_var(var, info); |
a67f379d LP |
2245 | if (ret) |
2246 | return ret; | |
2247 | ||
a67f379d LP |
2248 | return 0; |
2249 | } | |
2250 | ||
f1f60b5f LP |
2251 | /* ----------------------------------------------------------------------------- |
2252 | * Backlight | |
2253 | */ | |
2254 | ||
3b0fd9d7 AC |
2255 | static int sh_mobile_lcdc_update_bl(struct backlight_device *bdev) |
2256 | { | |
2257 | struct sh_mobile_lcdc_chan *ch = bl_get_data(bdev); | |
3b0fd9d7 AC |
2258 | int brightness = bdev->props.brightness; |
2259 | ||
2260 | if (bdev->props.power != FB_BLANK_UNBLANK || | |
2261 | bdev->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK)) | |
2262 | brightness = 0; | |
2263 | ||
b5ef967d | 2264 | return ch->cfg->bl_info.set_brightness(brightness); |
3b0fd9d7 AC |
2265 | } |
2266 | ||
2267 | static int sh_mobile_lcdc_get_brightness(struct backlight_device *bdev) | |
2268 | { | |
2269 | struct sh_mobile_lcdc_chan *ch = bl_get_data(bdev); | |
3b0fd9d7 | 2270 | |
b5ef967d | 2271 | return ch->cfg->bl_info.get_brightness(); |
3b0fd9d7 AC |
2272 | } |
2273 | ||
2274 | static int sh_mobile_lcdc_check_fb(struct backlight_device *bdev, | |
2275 | struct fb_info *info) | |
2276 | { | |
2277 | return (info->bl_dev == bdev); | |
2278 | } | |
2279 | ||
2280 | static struct backlight_ops sh_mobile_lcdc_bl_ops = { | |
2281 | .options = BL_CORE_SUSPENDRESUME, | |
2282 | .update_status = sh_mobile_lcdc_update_bl, | |
2283 | .get_brightness = sh_mobile_lcdc_get_brightness, | |
2284 | .check_fb = sh_mobile_lcdc_check_fb, | |
2285 | }; | |
2286 | ||
2287 | static struct backlight_device *sh_mobile_lcdc_bl_probe(struct device *parent, | |
2288 | struct sh_mobile_lcdc_chan *ch) | |
2289 | { | |
2290 | struct backlight_device *bl; | |
2291 | ||
b5ef967d | 2292 | bl = backlight_device_register(ch->cfg->bl_info.name, parent, ch, |
3b0fd9d7 | 2293 | &sh_mobile_lcdc_bl_ops, NULL); |
beee1f20 DC |
2294 | if (IS_ERR(bl)) { |
2295 | dev_err(parent, "unable to register backlight device: %ld\n", | |
2296 | PTR_ERR(bl)); | |
3b0fd9d7 AC |
2297 | return NULL; |
2298 | } | |
2299 | ||
b5ef967d | 2300 | bl->props.max_brightness = ch->cfg->bl_info.max_brightness; |
3b0fd9d7 AC |
2301 | bl->props.brightness = bl->props.max_brightness; |
2302 | backlight_update_status(bl); | |
2303 | ||
2304 | return bl; | |
2305 | } | |
2306 | ||
2307 | static void sh_mobile_lcdc_bl_remove(struct backlight_device *bdev) | |
2308 | { | |
2309 | backlight_device_unregister(bdev); | |
2310 | } | |
2311 | ||
f1f60b5f LP |
2312 | /* ----------------------------------------------------------------------------- |
2313 | * Power management | |
2314 | */ | |
2315 | ||
2feb075a MD |
2316 | static int sh_mobile_lcdc_suspend(struct device *dev) |
2317 | { | |
2318 | struct platform_device *pdev = to_platform_device(dev); | |
2319 | ||
2320 | sh_mobile_lcdc_stop(platform_get_drvdata(pdev)); | |
2321 | return 0; | |
2322 | } | |
2323 | ||
2324 | static int sh_mobile_lcdc_resume(struct device *dev) | |
2325 | { | |
2326 | struct platform_device *pdev = to_platform_device(dev); | |
2327 | ||
2328 | return sh_mobile_lcdc_start(platform_get_drvdata(pdev)); | |
2329 | } | |
2330 | ||
0246c471 MD |
2331 | static int sh_mobile_lcdc_runtime_suspend(struct device *dev) |
2332 | { | |
2333 | struct platform_device *pdev = to_platform_device(dev); | |
2427bb24 | 2334 | struct sh_mobile_lcdc_priv *priv = platform_get_drvdata(pdev); |
0246c471 MD |
2335 | |
2336 | /* turn off LCDC hardware */ | |
2427bb24 LP |
2337 | lcdc_write(priv, _LDCNT1R, 0); |
2338 | ||
0246c471 MD |
2339 | return 0; |
2340 | } | |
2341 | ||
2342 | static int sh_mobile_lcdc_runtime_resume(struct device *dev) | |
2343 | { | |
2344 | struct platform_device *pdev = to_platform_device(dev); | |
2427bb24 | 2345 | struct sh_mobile_lcdc_priv *priv = platform_get_drvdata(pdev); |
0246c471 | 2346 | |
2427bb24 | 2347 | __sh_mobile_lcdc_start(priv); |
0246c471 MD |
2348 | |
2349 | return 0; | |
2350 | } | |
2351 | ||
47145210 | 2352 | static const struct dev_pm_ops sh_mobile_lcdc_dev_pm_ops = { |
2feb075a MD |
2353 | .suspend = sh_mobile_lcdc_suspend, |
2354 | .resume = sh_mobile_lcdc_resume, | |
0246c471 MD |
2355 | .runtime_suspend = sh_mobile_lcdc_runtime_suspend, |
2356 | .runtime_resume = sh_mobile_lcdc_runtime_resume, | |
2feb075a MD |
2357 | }; |
2358 | ||
f1f60b5f LP |
2359 | /* ----------------------------------------------------------------------------- |
2360 | * Framebuffer notifier | |
2361 | */ | |
2362 | ||
6de9edd5 | 2363 | /* locking: called with info->lock held */ |
6011bdea GL |
2364 | static int sh_mobile_lcdc_notify(struct notifier_block *nb, |
2365 | unsigned long action, void *data) | |
2366 | { | |
2367 | struct fb_event *event = data; | |
2368 | struct fb_info *info = event->info; | |
2369 | struct sh_mobile_lcdc_chan *ch = info->par; | |
6011bdea GL |
2370 | |
2371 | if (&ch->lcdc->notifier != nb) | |
baf16374 | 2372 | return NOTIFY_DONE; |
6011bdea GL |
2373 | |
2374 | dev_dbg(info->dev, "%s(): action = %lu, data = %p\n", | |
2375 | __func__, action, event->data); | |
2376 | ||
2377 | switch(action) { | |
2378 | case FB_EVENT_SUSPEND: | |
37c5dcc2 | 2379 | sh_mobile_lcdc_display_off(ch); |
afe417c0 | 2380 | sh_mobile_lcdc_stop(ch->lcdc); |
6011bdea GL |
2381 | break; |
2382 | case FB_EVENT_RESUME: | |
dd210503 GL |
2383 | mutex_lock(&ch->open_lock); |
2384 | sh_mobile_fb_reconfig(info); | |
2385 | mutex_unlock(&ch->open_lock); | |
6011bdea | 2386 | |
37c5dcc2 | 2387 | sh_mobile_lcdc_display_on(ch); |
ebe5e12d | 2388 | sh_mobile_lcdc_start(ch->lcdc); |
6011bdea GL |
2389 | } |
2390 | ||
baf16374 | 2391 | return NOTIFY_OK; |
6011bdea GL |
2392 | } |
2393 | ||
f1f60b5f LP |
2394 | /* ----------------------------------------------------------------------------- |
2395 | * Probe/remove and driver init/exit | |
2396 | */ | |
2397 | ||
217e9c43 | 2398 | static const struct fb_videomode default_720p __devinitconst = { |
f1f60b5f LP |
2399 | .name = "HDMI 720p", |
2400 | .xres = 1280, | |
2401 | .yres = 720, | |
2402 | ||
2403 | .left_margin = 220, | |
2404 | .right_margin = 110, | |
2405 | .hsync_len = 40, | |
2406 | ||
2407 | .upper_margin = 20, | |
2408 | .lower_margin = 5, | |
2409 | .vsync_len = 5, | |
2410 | ||
2411 | .pixclock = 13468, | |
2412 | .refresh = 60, | |
2413 | .sync = FB_SYNC_VERT_HIGH_ACT | FB_SYNC_HOR_HIGH_ACT, | |
2414 | }; | |
2415 | ||
b4bee692 LP |
2416 | static int sh_mobile_lcdc_remove(struct platform_device *pdev) |
2417 | { | |
2418 | struct sh_mobile_lcdc_priv *priv = platform_get_drvdata(pdev); | |
c5deac3c | 2419 | unsigned int i; |
b4bee692 LP |
2420 | |
2421 | fb_unregister_client(&priv->notifier); | |
2422 | ||
c5deac3c LP |
2423 | for (i = 0; i < ARRAY_SIZE(priv->overlays); i++) |
2424 | sh_mobile_lcdc_overlay_fb_unregister(&priv->overlays[i]); | |
b4bee692 | 2425 | for (i = 0; i < ARRAY_SIZE(priv->ch); i++) |
a67f379d | 2426 | sh_mobile_lcdc_channel_fb_unregister(&priv->ch[i]); |
b4bee692 LP |
2427 | |
2428 | sh_mobile_lcdc_stop(priv); | |
2429 | ||
c5deac3c LP |
2430 | for (i = 0; i < ARRAY_SIZE(priv->overlays); i++) { |
2431 | struct sh_mobile_lcdc_overlay *ovl = &priv->overlays[i]; | |
2432 | ||
2433 | sh_mobile_lcdc_overlay_fb_cleanup(ovl); | |
2434 | ||
2435 | if (ovl->fb_mem) | |
2436 | dma_free_coherent(&pdev->dev, ovl->fb_size, | |
2437 | ovl->fb_mem, ovl->dma_handle); | |
2438 | } | |
2439 | ||
b4bee692 | 2440 | for (i = 0; i < ARRAY_SIZE(priv->ch); i++) { |
9a2985e7 | 2441 | struct sh_mobile_lcdc_chan *ch = &priv->ch[i]; |
b4bee692 | 2442 | |
e34d0bbb LP |
2443 | if (ch->tx_dev) { |
2444 | ch->tx_dev->lcdc = NULL; | |
b5ef967d | 2445 | module_put(ch->cfg->tx_dev->dev.driver->owner); |
e34d0bbb | 2446 | } |
9a2985e7 | 2447 | |
a67f379d | 2448 | sh_mobile_lcdc_channel_fb_cleanup(ch); |
b4bee692 | 2449 | |
a67f379d LP |
2450 | if (ch->fb_mem) |
2451 | dma_free_coherent(&pdev->dev, ch->fb_size, | |
2452 | ch->fb_mem, ch->dma_handle); | |
b4bee692 LP |
2453 | } |
2454 | ||
2455 | for (i = 0; i < ARRAY_SIZE(priv->ch); i++) { | |
2456 | if (priv->ch[i].bl) | |
2457 | sh_mobile_lcdc_bl_remove(priv->ch[i].bl); | |
2458 | } | |
2459 | ||
4774c12a LP |
2460 | if (priv->dot_clk) { |
2461 | pm_runtime_disable(&pdev->dev); | |
b4bee692 | 2462 | clk_put(priv->dot_clk); |
4774c12a | 2463 | } |
b4bee692 LP |
2464 | |
2465 | if (priv->base) | |
2466 | iounmap(priv->base); | |
2467 | ||
2468 | if (priv->irq) | |
2469 | free_irq(priv->irq, priv); | |
2470 | kfree(priv); | |
2471 | return 0; | |
2472 | } | |
cfb4f5d1 | 2473 | |
217e9c43 | 2474 | static int __devinit sh_mobile_lcdc_check_interface(struct sh_mobile_lcdc_chan *ch) |
f1f60b5f | 2475 | { |
b5ef967d | 2476 | int interface_type = ch->cfg->interface_type; |
f1f60b5f LP |
2477 | |
2478 | switch (interface_type) { | |
2479 | case RGB8: | |
2480 | case RGB9: | |
2481 | case RGB12A: | |
2482 | case RGB12B: | |
2483 | case RGB16: | |
2484 | case RGB18: | |
2485 | case RGB24: | |
2486 | case SYS8A: | |
2487 | case SYS8B: | |
2488 | case SYS8C: | |
2489 | case SYS8D: | |
2490 | case SYS9: | |
2491 | case SYS12: | |
2492 | case SYS16A: | |
2493 | case SYS16B: | |
2494 | case SYS16C: | |
2495 | case SYS18: | |
2496 | case SYS24: | |
2497 | break; | |
2498 | default: | |
2499 | return -EINVAL; | |
2500 | } | |
2501 | ||
2502 | /* SUBLCD only supports SYS interface */ | |
2503 | if (lcdc_chan_is_sublcd(ch)) { | |
2504 | if (!(interface_type & LDMT1R_IFM)) | |
2505 | return -EINVAL; | |
2506 | ||
2507 | interface_type &= ~LDMT1R_IFM; | |
2508 | } | |
2509 | ||
2510 | ch->ldmt1r_value = interface_type; | |
2511 | return 0; | |
2512 | } | |
2513 | ||
c5deac3c LP |
2514 | static int __devinit |
2515 | sh_mobile_lcdc_overlay_init(struct sh_mobile_lcdc_priv *priv, | |
2516 | struct sh_mobile_lcdc_overlay *ovl) | |
2517 | { | |
2518 | const struct sh_mobile_lcdc_format_info *format; | |
2519 | int ret; | |
2520 | ||
2521 | if (ovl->cfg->fourcc == 0) | |
2522 | return 0; | |
2523 | ||
2524 | /* Validate the format. */ | |
2525 | format = sh_mobile_format_info(ovl->cfg->fourcc); | |
2526 | if (format == NULL) { | |
2527 | dev_err(priv->dev, "Invalid FOURCC %08x\n", ovl->cfg->fourcc); | |
2528 | return -EINVAL; | |
2529 | } | |
2530 | ||
2531 | ovl->enabled = false; | |
2532 | ovl->mode = LCDC_OVERLAY_BLEND; | |
2533 | ovl->alpha = 255; | |
2534 | ovl->rop3 = 0; | |
2535 | ovl->pos_x = 0; | |
2536 | ovl->pos_y = 0; | |
2537 | ||
2538 | /* The default Y virtual resolution is twice the panel size to allow for | |
2539 | * double-buffering. | |
2540 | */ | |
2541 | ovl->format = format; | |
2542 | ovl->xres = ovl->cfg->max_xres; | |
2543 | ovl->xres_virtual = ovl->xres; | |
2544 | ovl->yres = ovl->cfg->max_yres; | |
2545 | ovl->yres_virtual = ovl->yres * 2; | |
2546 | ||
2547 | if (!format->yuv) | |
2548 | ovl->pitch = ovl->xres * format->bpp / 8; | |
2549 | else | |
2550 | ovl->pitch = ovl->xres; | |
2551 | ||
2552 | /* Allocate frame buffer memory. */ | |
2553 | ovl->fb_size = ovl->cfg->max_xres * ovl->cfg->max_yres | |
2554 | * format->bpp / 8 * 2; | |
2555 | ovl->fb_mem = dma_alloc_coherent(priv->dev, ovl->fb_size, | |
2556 | &ovl->dma_handle, GFP_KERNEL); | |
2557 | if (!ovl->fb_mem) { | |
2558 | dev_err(priv->dev, "unable to allocate buffer\n"); | |
2559 | return -ENOMEM; | |
2560 | } | |
2561 | ||
2562 | ret = sh_mobile_lcdc_overlay_fb_init(ovl); | |
2563 | if (ret < 0) | |
2564 | return ret; | |
2565 | ||
2566 | return 0; | |
2567 | } | |
2568 | ||
0a7f17aa LP |
2569 | static int __devinit |
2570 | sh_mobile_lcdc_channel_init(struct sh_mobile_lcdc_priv *priv, | |
2571 | struct sh_mobile_lcdc_chan *ch) | |
cfb4f5d1 | 2572 | { |
105784bb | 2573 | const struct sh_mobile_lcdc_format_info *format; |
b5ef967d | 2574 | const struct sh_mobile_lcdc_chan_cfg *cfg = ch->cfg; |
3ce05599 LP |
2575 | const struct fb_videomode *max_mode; |
2576 | const struct fb_videomode *mode; | |
a67f379d | 2577 | unsigned int num_modes; |
3ce05599 | 2578 | unsigned int max_size; |
a67f379d | 2579 | unsigned int i; |
3ce05599 | 2580 | |
a67472ad | 2581 | mutex_init(&ch->open_lock); |
ecd29947 | 2582 | ch->notify = sh_mobile_lcdc_display_notify; |
a67472ad | 2583 | |
105784bb LP |
2584 | /* Validate the format. */ |
2585 | format = sh_mobile_format_info(cfg->fourcc); | |
2586 | if (format == NULL) { | |
2587 | dev_err(priv->dev, "Invalid FOURCC %08x.\n", cfg->fourcc); | |
2588 | return -EINVAL; | |
2589 | } | |
2590 | ||
3ce05599 LP |
2591 | /* Iterate through the modes to validate them and find the highest |
2592 | * resolution. | |
2593 | */ | |
2594 | max_mode = NULL; | |
2595 | max_size = 0; | |
2596 | ||
93ff2598 | 2597 | for (i = 0, mode = cfg->lcd_modes; i < cfg->num_modes; i++, mode++) { |
3ce05599 LP |
2598 | unsigned int size = mode->yres * mode->xres; |
2599 | ||
edd153a3 LP |
2600 | /* NV12/NV21 buffers must have even number of lines */ |
2601 | if ((cfg->fourcc == V4L2_PIX_FMT_NV12 || | |
2602 | cfg->fourcc == V4L2_PIX_FMT_NV21) && (mode->yres & 0x1)) { | |
0a7f17aa LP |
2603 | dev_err(priv->dev, "yres must be multiple of 2 for " |
2604 | "YCbCr420 mode.\n"); | |
3ce05599 LP |
2605 | return -EINVAL; |
2606 | } | |
2607 | ||
2608 | if (size > max_size) { | |
2609 | max_mode = mode; | |
2610 | max_size = size; | |
2611 | } | |
2612 | } | |
2613 | ||
2614 | if (!max_size) | |
2615 | max_size = MAX_XRES * MAX_YRES; | |
2616 | else | |
0a7f17aa | 2617 | dev_dbg(priv->dev, "Found largest videomode %ux%u\n", |
3ce05599 LP |
2618 | max_mode->xres, max_mode->yres); |
2619 | ||
93ff2598 | 2620 | if (cfg->lcd_modes == NULL) { |
3ce05599 | 2621 | mode = &default_720p; |
93ff2598 | 2622 | num_modes = 1; |
3ce05599 | 2623 | } else { |
93ff2598 LP |
2624 | mode = cfg->lcd_modes; |
2625 | num_modes = cfg->num_modes; | |
3ce05599 LP |
2626 | } |
2627 | ||
58f03d99 LP |
2628 | /* Use the first mode as default. */ |
2629 | ch->format = format; | |
2630 | ch->xres = mode->xres; | |
2631 | ch->xres_virtual = mode->xres; | |
2632 | ch->yres = mode->yres; | |
2633 | ch->yres_virtual = mode->yres * 2; | |
2634 | ||
2635 | if (!format->yuv) { | |
2636 | ch->colorspace = V4L2_COLORSPACE_SRGB; | |
2637 | ch->pitch = ch->xres * format->bpp / 8; | |
2638 | } else { | |
2639 | ch->colorspace = V4L2_COLORSPACE_REC709; | |
2640 | ch->pitch = ch->xres; | |
2641 | } | |
2642 | ||
a67f379d LP |
2643 | ch->display.width = cfg->panel_cfg.width; |
2644 | ch->display.height = cfg->panel_cfg.height; | |
2645 | ch->display.mode = *mode; | |
2646 | ||
2647 | /* Allocate frame buffer memory. */ | |
2648 | ch->fb_size = max_size * format->bpp / 8 * 2; | |
2649 | ch->fb_mem = dma_alloc_coherent(priv->dev, ch->fb_size, &ch->dma_handle, | |
2650 | GFP_KERNEL); | |
2651 | if (ch->fb_mem == NULL) { | |
2652 | dev_err(priv->dev, "unable to allocate buffer\n"); | |
2653 | return -ENOMEM; | |
2654 | } | |
3ce05599 | 2655 | |
13f80eea LP |
2656 | /* Initialize the transmitter device if present. */ |
2657 | if (cfg->tx_dev) { | |
2658 | if (!cfg->tx_dev->dev.driver || | |
2659 | !try_module_get(cfg->tx_dev->dev.driver->owner)) { | |
2660 | dev_warn(priv->dev, | |
2661 | "unable to get transmitter device\n"); | |
2662 | return -EINVAL; | |
2663 | } | |
2664 | ch->tx_dev = platform_get_drvdata(cfg->tx_dev); | |
2665 | ch->tx_dev->lcdc = ch; | |
2666 | ch->tx_dev->def_mode = *mode; | |
2667 | } | |
2668 | ||
a67f379d | 2669 | return sh_mobile_lcdc_channel_fb_init(ch, mode, num_modes); |
3ce05599 LP |
2670 | } |
2671 | ||
2672 | static int __devinit sh_mobile_lcdc_probe(struct platform_device *pdev) | |
2673 | { | |
01ac25b5 | 2674 | struct sh_mobile_lcdc_info *pdata = pdev->dev.platform_data; |
3ce05599 | 2675 | struct sh_mobile_lcdc_priv *priv; |
cfb4f5d1 | 2676 | struct resource *res; |
3ce05599 | 2677 | int num_channels; |
cfb4f5d1 | 2678 | int error; |
3ce05599 | 2679 | int i; |
cfb4f5d1 | 2680 | |
01ac25b5 | 2681 | if (!pdata) { |
cfb4f5d1 | 2682 | dev_err(&pdev->dev, "no platform data defined\n"); |
8bed9055 | 2683 | return -EINVAL; |
cfb4f5d1 MD |
2684 | } |
2685 | ||
2686 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
8564557a MD |
2687 | i = platform_get_irq(pdev, 0); |
2688 | if (!res || i < 0) { | |
2689 | dev_err(&pdev->dev, "cannot get platform resources\n"); | |
8bed9055 | 2690 | return -ENOENT; |
cfb4f5d1 MD |
2691 | } |
2692 | ||
2693 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); | |
2694 | if (!priv) { | |
2695 | dev_err(&pdev->dev, "cannot allocate device data\n"); | |
8bed9055 | 2696 | return -ENOMEM; |
cfb4f5d1 MD |
2697 | } |
2698 | ||
4774c12a LP |
2699 | priv->dev = &pdev->dev; |
2700 | priv->meram_dev = pdata->meram_dev; | |
8bed9055 GL |
2701 | platform_set_drvdata(pdev, priv); |
2702 | ||
f8798ccb | 2703 | error = request_irq(i, sh_mobile_lcdc_irq, 0, |
7ad33e74 | 2704 | dev_name(&pdev->dev), priv); |
8564557a MD |
2705 | if (error) { |
2706 | dev_err(&pdev->dev, "unable to request irq\n"); | |
2707 | goto err1; | |
2708 | } | |
2709 | ||
2710 | priv->irq = i; | |
5ef6b505 | 2711 | atomic_set(&priv->hw_usecnt, -1); |
cfb4f5d1 | 2712 | |
3ce05599 LP |
2713 | for (i = 0, num_channels = 0; i < ARRAY_SIZE(pdata->ch); i++) { |
2714 | struct sh_mobile_lcdc_chan *ch = priv->ch + num_channels; | |
cfb4f5d1 | 2715 | |
01ac25b5 | 2716 | ch->lcdc = priv; |
b5ef967d | 2717 | ch->cfg = &pdata->ch[i]; |
cfb4f5d1 | 2718 | |
01ac25b5 | 2719 | error = sh_mobile_lcdc_check_interface(ch); |
cfb4f5d1 MD |
2720 | if (error) { |
2721 | dev_err(&pdev->dev, "unsupported interface type\n"); | |
2722 | goto err1; | |
2723 | } | |
01ac25b5 GL |
2724 | init_waitqueue_head(&ch->frame_end_wait); |
2725 | init_completion(&ch->vsync_completion); | |
2726 | ch->pan_offset = 0; | |
cfb4f5d1 | 2727 | |
3b0fd9d7 | 2728 | /* probe the backlight is there is one defined */ |
b5ef967d | 2729 | if (ch->cfg->bl_info.max_brightness) |
3b0fd9d7 AC |
2730 | ch->bl = sh_mobile_lcdc_bl_probe(&pdev->dev, ch); |
2731 | ||
cfb4f5d1 MD |
2732 | switch (pdata->ch[i].chan) { |
2733 | case LCDC_CHAN_MAINLCD: | |
ce1c0b08 | 2734 | ch->enabled = LDCNT2R_ME; |
01ac25b5 | 2735 | ch->reg_offs = lcdc_offs_mainlcd; |
3ce05599 | 2736 | num_channels++; |
cfb4f5d1 MD |
2737 | break; |
2738 | case LCDC_CHAN_SUBLCD: | |
ce1c0b08 | 2739 | ch->enabled = LDCNT2R_SE; |
01ac25b5 | 2740 | ch->reg_offs = lcdc_offs_sublcd; |
3ce05599 | 2741 | num_channels++; |
cfb4f5d1 MD |
2742 | break; |
2743 | } | |
2744 | } | |
2745 | ||
3ce05599 | 2746 | if (!num_channels) { |
cfb4f5d1 MD |
2747 | dev_err(&pdev->dev, "no channels defined\n"); |
2748 | error = -EINVAL; | |
2749 | goto err1; | |
2750 | } | |
2751 | ||
edd153a3 | 2752 | /* for dual channel LCDC (MAIN + SUB) force shared format setting */ |
3ce05599 | 2753 | if (num_channels == 2) |
edd153a3 | 2754 | priv->forced_fourcc = pdata->ch[0].fourcc; |
417d4827 | 2755 | |
dba6f385 GL |
2756 | priv->base = ioremap_nocache(res->start, resource_size(res)); |
2757 | if (!priv->base) | |
2758 | goto err1; | |
2759 | ||
0a7f17aa | 2760 | error = sh_mobile_lcdc_setup_clocks(priv, pdata->clock_source); |
cfb4f5d1 MD |
2761 | if (error) { |
2762 | dev_err(&pdev->dev, "unable to setup clocks\n"); | |
2763 | goto err1; | |
2764 | } | |
2765 | ||
4774c12a LP |
2766 | /* Enable runtime PM. */ |
2767 | pm_runtime_enable(&pdev->dev); | |
7caa4342 | 2768 | |
3ce05599 | 2769 | for (i = 0; i < num_channels; i++) { |
01ac25b5 | 2770 | struct sh_mobile_lcdc_chan *ch = priv->ch + i; |
c44f9f76 | 2771 | |
0a7f17aa | 2772 | error = sh_mobile_lcdc_channel_init(priv, ch); |
cfb4f5d1 | 2773 | if (error) |
3ce05599 | 2774 | goto err1; |
cfb4f5d1 MD |
2775 | } |
2776 | ||
c5deac3c LP |
2777 | for (i = 0; i < ARRAY_SIZE(pdata->overlays); i++) { |
2778 | struct sh_mobile_lcdc_overlay *ovl = &priv->overlays[i]; | |
2779 | ||
2780 | ovl->cfg = &pdata->overlays[i]; | |
2781 | ovl->channel = &priv->ch[0]; | |
2782 | ||
2783 | error = sh_mobile_lcdc_overlay_init(priv, ovl); | |
2784 | if (error) | |
2785 | goto err1; | |
2786 | } | |
2787 | ||
cfb4f5d1 MD |
2788 | error = sh_mobile_lcdc_start(priv); |
2789 | if (error) { | |
2790 | dev_err(&pdev->dev, "unable to start hardware\n"); | |
2791 | goto err1; | |
2792 | } | |
2793 | ||
3ce05599 | 2794 | for (i = 0; i < num_channels; i++) { |
1c6a307a | 2795 | struct sh_mobile_lcdc_chan *ch = priv->ch + i; |
1c6a307a | 2796 | |
a67f379d LP |
2797 | error = sh_mobile_lcdc_channel_fb_register(ch); |
2798 | if (error) | |
cfb4f5d1 | 2799 | goto err1; |
cfb4f5d1 MD |
2800 | } |
2801 | ||
c5deac3c LP |
2802 | for (i = 0; i < ARRAY_SIZE(pdata->overlays); i++) { |
2803 | struct sh_mobile_lcdc_overlay *ovl = &priv->overlays[i]; | |
2804 | ||
2805 | error = sh_mobile_lcdc_overlay_fb_register(ovl); | |
2806 | if (error) | |
2807 | goto err1; | |
2808 | } | |
2809 | ||
6011bdea GL |
2810 | /* Failure ignored */ |
2811 | priv->notifier.notifier_call = sh_mobile_lcdc_notify; | |
2812 | fb_register_client(&priv->notifier); | |
2813 | ||
cfb4f5d1 | 2814 | return 0; |
8bed9055 | 2815 | err1: |
cfb4f5d1 | 2816 | sh_mobile_lcdc_remove(pdev); |
8bed9055 | 2817 | |
cfb4f5d1 MD |
2818 | return error; |
2819 | } | |
2820 | ||
cfb4f5d1 MD |
2821 | static struct platform_driver sh_mobile_lcdc_driver = { |
2822 | .driver = { | |
2823 | .name = "sh_mobile_lcdc_fb", | |
2824 | .owner = THIS_MODULE, | |
2feb075a | 2825 | .pm = &sh_mobile_lcdc_dev_pm_ops, |
cfb4f5d1 MD |
2826 | }, |
2827 | .probe = sh_mobile_lcdc_probe, | |
2828 | .remove = sh_mobile_lcdc_remove, | |
2829 | }; | |
2830 | ||
4277f2c4 | 2831 | module_platform_driver(sh_mobile_lcdc_driver); |
cfb4f5d1 MD |
2832 | |
2833 | MODULE_DESCRIPTION("SuperH Mobile LCDC Framebuffer driver"); | |
2834 | MODULE_AUTHOR("Magnus Damm <damm@opensource.se>"); | |
2835 | MODULE_LICENSE("GPL v2"); |