2 * linux/drivers/video/omap2/dss/dispc.c
4 * Copyright (C) 2009 Nokia Corporation
5 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
7 * Some code and ideas taken from drivers/video/omap/ driver
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License version 2 as published by
12 * the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
19 * You should have received a copy of the GNU General Public License along with
20 * this program. If not, see <http://www.gnu.org/licenses/>.
23 #define DSS_SUBSYS_NAME "DISPC"
25 #include <linux/kernel.h>
26 #include <linux/dma-mapping.h>
27 #include <linux/vmalloc.h>
28 #include <linux/export.h>
29 #include <linux/clk.h>
31 #include <linux/jiffies.h>
32 #include <linux/seq_file.h>
33 #include <linux/delay.h>
34 #include <linux/workqueue.h>
35 #include <linux/hardirq.h>
36 #include <linux/platform_device.h>
37 #include <linux/pm_runtime.h>
38 #include <linux/sizes.h>
40 #include <video/omapdss.h>
43 #include "dss_features.h"
47 #define DISPC_SZ_REGS SZ_4K
49 enum omap_burst_size
{
55 #define REG_GET(idx, start, end) \
56 FLD_GET(dispc_read_reg(idx), start, end)
58 #define REG_FLD_MOD(idx, val, start, end) \
59 dispc_write_reg(idx, FLD_MOD(dispc_read_reg(idx), val, start, end))
61 struct dispc_features
{
72 unsigned long max_lcd_pclk
;
73 unsigned long max_tv_pclk
;
74 int (*calc_scaling
) (unsigned long pclk
, unsigned long lclk
,
75 const struct omap_video_timings
*mgr_timings
,
76 u16 width
, u16 height
, u16 out_width
, u16 out_height
,
77 enum omap_color_mode color_mode
, bool *five_taps
,
78 int *x_predecim
, int *y_predecim
, int *decim_x
, int *decim_y
,
79 u16 pos_x
, unsigned long *core_clk
, bool mem_to_mem
);
80 unsigned long (*calc_core_clk
) (unsigned long pclk
,
81 u16 width
, u16 height
, u16 out_width
, u16 out_height
,
85 /* swap GFX & WB fifos */
86 bool gfx_fifo_workaround
:1;
88 /* no DISPC_IRQ_FRAMEDONETV on this SoC */
89 bool no_framedone_tv
:1;
91 /* revert to the OMAP4 mechanism of DISPC Smart Standby operation */
92 bool mstandby_workaround
:1;
94 bool set_max_preload
:1;
97 #define DISPC_MAX_NR_FIFOS 5
100 struct platform_device
*pdev
;
104 irq_handler_t user_handler
;
107 unsigned long core_clk_rate
;
108 unsigned long tv_pclk_rate
;
110 u32 fifo_size
[DISPC_MAX_NR_FIFOS
];
111 /* maps which plane is using a fifo. fifo-id -> plane-id */
112 int fifo_assignment
[DISPC_MAX_NR_FIFOS
];
115 u32 ctx
[DISPC_SZ_REGS
/ sizeof(u32
)];
117 const struct dispc_features
*feat
;
122 enum omap_color_component
{
123 /* used for all color formats for OMAP3 and earlier
124 * and for RGB and Y color component on OMAP4
126 DISPC_COLOR_COMPONENT_RGB_Y
= 1 << 0,
127 /* used for UV component for
128 * OMAP_DSS_COLOR_YUV2, OMAP_DSS_COLOR_UYVY, OMAP_DSS_COLOR_NV12
129 * color formats on OMAP4
131 DISPC_COLOR_COMPONENT_UV
= 1 << 1,
134 enum mgr_reg_fields
{
135 DISPC_MGR_FLD_ENABLE
,
136 DISPC_MGR_FLD_STNTFT
,
138 DISPC_MGR_FLD_TFTDATALINES
,
139 DISPC_MGR_FLD_STALLMODE
,
140 DISPC_MGR_FLD_TCKENABLE
,
141 DISPC_MGR_FLD_TCKSELECTION
,
143 DISPC_MGR_FLD_FIFOHANDCHECK
,
144 /* used to maintain a count of the above fields */
148 struct dispc_reg_field
{
154 static const struct {
159 struct dispc_reg_field reg_desc
[DISPC_MGR_FLD_NUM
];
161 [OMAP_DSS_CHANNEL_LCD
] = {
163 .vsync_irq
= DISPC_IRQ_VSYNC
,
164 .framedone_irq
= DISPC_IRQ_FRAMEDONE
,
165 .sync_lost_irq
= DISPC_IRQ_SYNC_LOST
,
167 [DISPC_MGR_FLD_ENABLE
] = { DISPC_CONTROL
, 0, 0 },
168 [DISPC_MGR_FLD_STNTFT
] = { DISPC_CONTROL
, 3, 3 },
169 [DISPC_MGR_FLD_GO
] = { DISPC_CONTROL
, 5, 5 },
170 [DISPC_MGR_FLD_TFTDATALINES
] = { DISPC_CONTROL
, 9, 8 },
171 [DISPC_MGR_FLD_STALLMODE
] = { DISPC_CONTROL
, 11, 11 },
172 [DISPC_MGR_FLD_TCKENABLE
] = { DISPC_CONFIG
, 10, 10 },
173 [DISPC_MGR_FLD_TCKSELECTION
] = { DISPC_CONFIG
, 11, 11 },
174 [DISPC_MGR_FLD_CPR
] = { DISPC_CONFIG
, 15, 15 },
175 [DISPC_MGR_FLD_FIFOHANDCHECK
] = { DISPC_CONFIG
, 16, 16 },
178 [OMAP_DSS_CHANNEL_DIGIT
] = {
180 .vsync_irq
= DISPC_IRQ_EVSYNC_ODD
| DISPC_IRQ_EVSYNC_EVEN
,
181 .framedone_irq
= DISPC_IRQ_FRAMEDONETV
,
182 .sync_lost_irq
= DISPC_IRQ_SYNC_LOST_DIGIT
,
184 [DISPC_MGR_FLD_ENABLE
] = { DISPC_CONTROL
, 1, 1 },
185 [DISPC_MGR_FLD_STNTFT
] = { },
186 [DISPC_MGR_FLD_GO
] = { DISPC_CONTROL
, 6, 6 },
187 [DISPC_MGR_FLD_TFTDATALINES
] = { },
188 [DISPC_MGR_FLD_STALLMODE
] = { },
189 [DISPC_MGR_FLD_TCKENABLE
] = { DISPC_CONFIG
, 12, 12 },
190 [DISPC_MGR_FLD_TCKSELECTION
] = { DISPC_CONFIG
, 13, 13 },
191 [DISPC_MGR_FLD_CPR
] = { },
192 [DISPC_MGR_FLD_FIFOHANDCHECK
] = { DISPC_CONFIG
, 16, 16 },
195 [OMAP_DSS_CHANNEL_LCD2
] = {
197 .vsync_irq
= DISPC_IRQ_VSYNC2
,
198 .framedone_irq
= DISPC_IRQ_FRAMEDONE2
,
199 .sync_lost_irq
= DISPC_IRQ_SYNC_LOST2
,
201 [DISPC_MGR_FLD_ENABLE
] = { DISPC_CONTROL2
, 0, 0 },
202 [DISPC_MGR_FLD_STNTFT
] = { DISPC_CONTROL2
, 3, 3 },
203 [DISPC_MGR_FLD_GO
] = { DISPC_CONTROL2
, 5, 5 },
204 [DISPC_MGR_FLD_TFTDATALINES
] = { DISPC_CONTROL2
, 9, 8 },
205 [DISPC_MGR_FLD_STALLMODE
] = { DISPC_CONTROL2
, 11, 11 },
206 [DISPC_MGR_FLD_TCKENABLE
] = { DISPC_CONFIG2
, 10, 10 },
207 [DISPC_MGR_FLD_TCKSELECTION
] = { DISPC_CONFIG2
, 11, 11 },
208 [DISPC_MGR_FLD_CPR
] = { DISPC_CONFIG2
, 15, 15 },
209 [DISPC_MGR_FLD_FIFOHANDCHECK
] = { DISPC_CONFIG2
, 16, 16 },
212 [OMAP_DSS_CHANNEL_LCD3
] = {
214 .vsync_irq
= DISPC_IRQ_VSYNC3
,
215 .framedone_irq
= DISPC_IRQ_FRAMEDONE3
,
216 .sync_lost_irq
= DISPC_IRQ_SYNC_LOST3
,
218 [DISPC_MGR_FLD_ENABLE
] = { DISPC_CONTROL3
, 0, 0 },
219 [DISPC_MGR_FLD_STNTFT
] = { DISPC_CONTROL3
, 3, 3 },
220 [DISPC_MGR_FLD_GO
] = { DISPC_CONTROL3
, 5, 5 },
221 [DISPC_MGR_FLD_TFTDATALINES
] = { DISPC_CONTROL3
, 9, 8 },
222 [DISPC_MGR_FLD_STALLMODE
] = { DISPC_CONTROL3
, 11, 11 },
223 [DISPC_MGR_FLD_TCKENABLE
] = { DISPC_CONFIG3
, 10, 10 },
224 [DISPC_MGR_FLD_TCKSELECTION
] = { DISPC_CONFIG3
, 11, 11 },
225 [DISPC_MGR_FLD_CPR
] = { DISPC_CONFIG3
, 15, 15 },
226 [DISPC_MGR_FLD_FIFOHANDCHECK
] = { DISPC_CONFIG3
, 16, 16 },
231 struct color_conv_coef
{
232 int ry
, rcr
, rcb
, gy
, gcr
, gcb
, by
, bcr
, bcb
;
236 static unsigned long dispc_plane_pclk_rate(enum omap_plane plane
);
237 static unsigned long dispc_plane_lclk_rate(enum omap_plane plane
);
239 static inline void dispc_write_reg(const u16 idx
, u32 val
)
241 __raw_writel(val
, dispc
.base
+ idx
);
244 static inline u32
dispc_read_reg(const u16 idx
)
246 return __raw_readl(dispc
.base
+ idx
);
249 static u32
mgr_fld_read(enum omap_channel channel
, enum mgr_reg_fields regfld
)
251 const struct dispc_reg_field rfld
= mgr_desc
[channel
].reg_desc
[regfld
];
252 return REG_GET(rfld
.reg
, rfld
.high
, rfld
.low
);
255 static void mgr_fld_write(enum omap_channel channel
,
256 enum mgr_reg_fields regfld
, int val
) {
257 const struct dispc_reg_field rfld
= mgr_desc
[channel
].reg_desc
[regfld
];
258 REG_FLD_MOD(rfld
.reg
, val
, rfld
.high
, rfld
.low
);
262 dispc.ctx[DISPC_##reg / sizeof(u32)] = dispc_read_reg(DISPC_##reg)
264 dispc_write_reg(DISPC_##reg, dispc.ctx[DISPC_##reg / sizeof(u32)])
266 static void dispc_save_context(void)
270 DSSDBG("dispc_save_context\n");
276 if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER
) ||
277 dss_has_feature(FEAT_ALPHA_FREE_ZORDER
))
279 if (dss_has_feature(FEAT_MGR_LCD2
)) {
283 if (dss_has_feature(FEAT_MGR_LCD3
)) {
288 for (i
= 0; i
< dss_feat_get_num_mgrs(); i
++) {
289 SR(DEFAULT_COLOR(i
));
292 if (i
== OMAP_DSS_CHANNEL_DIGIT
)
303 if (dss_has_feature(FEAT_CPR
)) {
310 for (i
= 0; i
< dss_feat_get_num_ovls(); i
++) {
315 SR(OVL_ATTRIBUTES(i
));
316 SR(OVL_FIFO_THRESHOLD(i
));
318 SR(OVL_PIXEL_INC(i
));
319 if (dss_has_feature(FEAT_PRELOAD
))
321 if (i
== OMAP_DSS_GFX
) {
322 SR(OVL_WINDOW_SKIP(i
));
327 SR(OVL_PICTURE_SIZE(i
));
331 for (j
= 0; j
< 8; j
++)
332 SR(OVL_FIR_COEF_H(i
, j
));
334 for (j
= 0; j
< 8; j
++)
335 SR(OVL_FIR_COEF_HV(i
, j
));
337 for (j
= 0; j
< 5; j
++)
338 SR(OVL_CONV_COEF(i
, j
));
340 if (dss_has_feature(FEAT_FIR_COEF_V
)) {
341 for (j
= 0; j
< 8; j
++)
342 SR(OVL_FIR_COEF_V(i
, j
));
345 if (dss_has_feature(FEAT_HANDLE_UV_SEPARATE
)) {
352 for (j
= 0; j
< 8; j
++)
353 SR(OVL_FIR_COEF_H2(i
, j
));
355 for (j
= 0; j
< 8; j
++)
356 SR(OVL_FIR_COEF_HV2(i
, j
));
358 for (j
= 0; j
< 8; j
++)
359 SR(OVL_FIR_COEF_V2(i
, j
));
361 if (dss_has_feature(FEAT_ATTR2
))
362 SR(OVL_ATTRIBUTES2(i
));
365 if (dss_has_feature(FEAT_CORE_CLK_DIV
))
368 dispc
.ctx_valid
= true;
370 DSSDBG("context saved\n");
373 static void dispc_restore_context(void)
377 DSSDBG("dispc_restore_context\n");
379 if (!dispc
.ctx_valid
)
386 if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER
) ||
387 dss_has_feature(FEAT_ALPHA_FREE_ZORDER
))
389 if (dss_has_feature(FEAT_MGR_LCD2
))
391 if (dss_has_feature(FEAT_MGR_LCD3
))
394 for (i
= 0; i
< dss_feat_get_num_mgrs(); i
++) {
395 RR(DEFAULT_COLOR(i
));
398 if (i
== OMAP_DSS_CHANNEL_DIGIT
)
409 if (dss_has_feature(FEAT_CPR
)) {
416 for (i
= 0; i
< dss_feat_get_num_ovls(); i
++) {
421 RR(OVL_ATTRIBUTES(i
));
422 RR(OVL_FIFO_THRESHOLD(i
));
424 RR(OVL_PIXEL_INC(i
));
425 if (dss_has_feature(FEAT_PRELOAD
))
427 if (i
== OMAP_DSS_GFX
) {
428 RR(OVL_WINDOW_SKIP(i
));
433 RR(OVL_PICTURE_SIZE(i
));
437 for (j
= 0; j
< 8; j
++)
438 RR(OVL_FIR_COEF_H(i
, j
));
440 for (j
= 0; j
< 8; j
++)
441 RR(OVL_FIR_COEF_HV(i
, j
));
443 for (j
= 0; j
< 5; j
++)
444 RR(OVL_CONV_COEF(i
, j
));
446 if (dss_has_feature(FEAT_FIR_COEF_V
)) {
447 for (j
= 0; j
< 8; j
++)
448 RR(OVL_FIR_COEF_V(i
, j
));
451 if (dss_has_feature(FEAT_HANDLE_UV_SEPARATE
)) {
458 for (j
= 0; j
< 8; j
++)
459 RR(OVL_FIR_COEF_H2(i
, j
));
461 for (j
= 0; j
< 8; j
++)
462 RR(OVL_FIR_COEF_HV2(i
, j
));
464 for (j
= 0; j
< 8; j
++)
465 RR(OVL_FIR_COEF_V2(i
, j
));
467 if (dss_has_feature(FEAT_ATTR2
))
468 RR(OVL_ATTRIBUTES2(i
));
471 if (dss_has_feature(FEAT_CORE_CLK_DIV
))
474 /* enable last, because LCD & DIGIT enable are here */
476 if (dss_has_feature(FEAT_MGR_LCD2
))
478 if (dss_has_feature(FEAT_MGR_LCD3
))
480 /* clear spurious SYNC_LOST_DIGIT interrupts */
481 dispc_clear_irqstatus(DISPC_IRQ_SYNC_LOST_DIGIT
);
484 * enable last so IRQs won't trigger before
485 * the context is fully restored
489 DSSDBG("context restored\n");
495 int dispc_runtime_get(void)
499 DSSDBG("dispc_runtime_get\n");
501 r
= pm_runtime_get_sync(&dispc
.pdev
->dev
);
503 return r
< 0 ? r
: 0;
505 EXPORT_SYMBOL(dispc_runtime_get
);
507 void dispc_runtime_put(void)
511 DSSDBG("dispc_runtime_put\n");
513 r
= pm_runtime_put_sync(&dispc
.pdev
->dev
);
514 WARN_ON(r
< 0 && r
!= -ENOSYS
);
516 EXPORT_SYMBOL(dispc_runtime_put
);
518 u32
dispc_mgr_get_vsync_irq(enum omap_channel channel
)
520 return mgr_desc
[channel
].vsync_irq
;
522 EXPORT_SYMBOL(dispc_mgr_get_vsync_irq
);
524 u32
dispc_mgr_get_framedone_irq(enum omap_channel channel
)
526 if (channel
== OMAP_DSS_CHANNEL_DIGIT
&& dispc
.feat
->no_framedone_tv
)
529 return mgr_desc
[channel
].framedone_irq
;
531 EXPORT_SYMBOL(dispc_mgr_get_framedone_irq
);
533 u32
dispc_mgr_get_sync_lost_irq(enum omap_channel channel
)
535 return mgr_desc
[channel
].sync_lost_irq
;
537 EXPORT_SYMBOL(dispc_mgr_get_sync_lost_irq
);
539 u32
dispc_wb_get_framedone_irq(void)
541 return DISPC_IRQ_FRAMEDONEWB
;
544 bool dispc_mgr_go_busy(enum omap_channel channel
)
546 return mgr_fld_read(channel
, DISPC_MGR_FLD_GO
) == 1;
548 EXPORT_SYMBOL(dispc_mgr_go_busy
);
550 void dispc_mgr_go(enum omap_channel channel
)
552 WARN_ON(dispc_mgr_is_enabled(channel
) == false);
553 WARN_ON(dispc_mgr_go_busy(channel
));
555 DSSDBG("GO %s\n", mgr_desc
[channel
].name
);
557 mgr_fld_write(channel
, DISPC_MGR_FLD_GO
, 1);
559 EXPORT_SYMBOL(dispc_mgr_go
);
561 bool dispc_wb_go_busy(void)
563 return REG_GET(DISPC_CONTROL2
, 6, 6) == 1;
566 void dispc_wb_go(void)
568 enum omap_plane plane
= OMAP_DSS_WB
;
571 enable
= REG_GET(DISPC_OVL_ATTRIBUTES(plane
), 0, 0) == 1;
576 go
= REG_GET(DISPC_CONTROL2
, 6, 6) == 1;
578 DSSERR("GO bit not down for WB\n");
582 REG_FLD_MOD(DISPC_CONTROL2
, 1, 6, 6);
585 static void dispc_ovl_write_firh_reg(enum omap_plane plane
, int reg
, u32 value
)
587 dispc_write_reg(DISPC_OVL_FIR_COEF_H(plane
, reg
), value
);
590 static void dispc_ovl_write_firhv_reg(enum omap_plane plane
, int reg
, u32 value
)
592 dispc_write_reg(DISPC_OVL_FIR_COEF_HV(plane
, reg
), value
);
595 static void dispc_ovl_write_firv_reg(enum omap_plane plane
, int reg
, u32 value
)
597 dispc_write_reg(DISPC_OVL_FIR_COEF_V(plane
, reg
), value
);
600 static void dispc_ovl_write_firh2_reg(enum omap_plane plane
, int reg
, u32 value
)
602 BUG_ON(plane
== OMAP_DSS_GFX
);
604 dispc_write_reg(DISPC_OVL_FIR_COEF_H2(plane
, reg
), value
);
607 static void dispc_ovl_write_firhv2_reg(enum omap_plane plane
, int reg
,
610 BUG_ON(plane
== OMAP_DSS_GFX
);
612 dispc_write_reg(DISPC_OVL_FIR_COEF_HV2(plane
, reg
), value
);
615 static void dispc_ovl_write_firv2_reg(enum omap_plane plane
, int reg
, u32 value
)
617 BUG_ON(plane
== OMAP_DSS_GFX
);
619 dispc_write_reg(DISPC_OVL_FIR_COEF_V2(plane
, reg
), value
);
622 static void dispc_ovl_set_scale_coef(enum omap_plane plane
, int fir_hinc
,
623 int fir_vinc
, int five_taps
,
624 enum omap_color_component color_comp
)
626 const struct dispc_coef
*h_coef
, *v_coef
;
629 h_coef
= dispc_ovl_get_scale_coef(fir_hinc
, true);
630 v_coef
= dispc_ovl_get_scale_coef(fir_vinc
, five_taps
);
632 for (i
= 0; i
< 8; i
++) {
635 h
= FLD_VAL(h_coef
[i
].hc0_vc00
, 7, 0)
636 | FLD_VAL(h_coef
[i
].hc1_vc0
, 15, 8)
637 | FLD_VAL(h_coef
[i
].hc2_vc1
, 23, 16)
638 | FLD_VAL(h_coef
[i
].hc3_vc2
, 31, 24);
639 hv
= FLD_VAL(h_coef
[i
].hc4_vc22
, 7, 0)
640 | FLD_VAL(v_coef
[i
].hc1_vc0
, 15, 8)
641 | FLD_VAL(v_coef
[i
].hc2_vc1
, 23, 16)
642 | FLD_VAL(v_coef
[i
].hc3_vc2
, 31, 24);
644 if (color_comp
== DISPC_COLOR_COMPONENT_RGB_Y
) {
645 dispc_ovl_write_firh_reg(plane
, i
, h
);
646 dispc_ovl_write_firhv_reg(plane
, i
, hv
);
648 dispc_ovl_write_firh2_reg(plane
, i
, h
);
649 dispc_ovl_write_firhv2_reg(plane
, i
, hv
);
655 for (i
= 0; i
< 8; i
++) {
657 v
= FLD_VAL(v_coef
[i
].hc0_vc00
, 7, 0)
658 | FLD_VAL(v_coef
[i
].hc4_vc22
, 15, 8);
659 if (color_comp
== DISPC_COLOR_COMPONENT_RGB_Y
)
660 dispc_ovl_write_firv_reg(plane
, i
, v
);
662 dispc_ovl_write_firv2_reg(plane
, i
, v
);
668 static void dispc_ovl_write_color_conv_coef(enum omap_plane plane
,
669 const struct color_conv_coef
*ct
)
671 #define CVAL(x, y) (FLD_VAL(x, 26, 16) | FLD_VAL(y, 10, 0))
673 dispc_write_reg(DISPC_OVL_CONV_COEF(plane
, 0), CVAL(ct
->rcr
, ct
->ry
));
674 dispc_write_reg(DISPC_OVL_CONV_COEF(plane
, 1), CVAL(ct
->gy
, ct
->rcb
));
675 dispc_write_reg(DISPC_OVL_CONV_COEF(plane
, 2), CVAL(ct
->gcb
, ct
->gcr
));
676 dispc_write_reg(DISPC_OVL_CONV_COEF(plane
, 3), CVAL(ct
->bcr
, ct
->by
));
677 dispc_write_reg(DISPC_OVL_CONV_COEF(plane
, 4), CVAL(0, ct
->bcb
));
679 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane
), ct
->full_range
, 11, 11);
684 static void dispc_setup_color_conv_coef(void)
687 int num_ovl
= dss_feat_get_num_ovls();
688 int num_wb
= dss_feat_get_num_wbs();
689 const struct color_conv_coef ctbl_bt601_5_ovl
= {
690 298, 409, 0, 298, -208, -100, 298, 0, 517, 0,
692 const struct color_conv_coef ctbl_bt601_5_wb
= {
693 66, 112, -38, 129, -94, -74, 25, -18, 112, 0,
696 for (i
= 1; i
< num_ovl
; i
++)
697 dispc_ovl_write_color_conv_coef(i
, &ctbl_bt601_5_ovl
);
699 for (; i
< num_wb
; i
++)
700 dispc_ovl_write_color_conv_coef(i
, &ctbl_bt601_5_wb
);
703 static void dispc_ovl_set_ba0(enum omap_plane plane
, u32 paddr
)
705 dispc_write_reg(DISPC_OVL_BA0(plane
), paddr
);
708 static void dispc_ovl_set_ba1(enum omap_plane plane
, u32 paddr
)
710 dispc_write_reg(DISPC_OVL_BA1(plane
), paddr
);
713 static void dispc_ovl_set_ba0_uv(enum omap_plane plane
, u32 paddr
)
715 dispc_write_reg(DISPC_OVL_BA0_UV(plane
), paddr
);
718 static void dispc_ovl_set_ba1_uv(enum omap_plane plane
, u32 paddr
)
720 dispc_write_reg(DISPC_OVL_BA1_UV(plane
), paddr
);
723 static void dispc_ovl_set_pos(enum omap_plane plane
,
724 enum omap_overlay_caps caps
, int x
, int y
)
728 if ((caps
& OMAP_DSS_OVL_CAP_POS
) == 0)
731 val
= FLD_VAL(y
, 26, 16) | FLD_VAL(x
, 10, 0);
733 dispc_write_reg(DISPC_OVL_POSITION(plane
), val
);
736 static void dispc_ovl_set_input_size(enum omap_plane plane
, int width
,
739 u32 val
= FLD_VAL(height
- 1, 26, 16) | FLD_VAL(width
- 1, 10, 0);
741 if (plane
== OMAP_DSS_GFX
|| plane
== OMAP_DSS_WB
)
742 dispc_write_reg(DISPC_OVL_SIZE(plane
), val
);
744 dispc_write_reg(DISPC_OVL_PICTURE_SIZE(plane
), val
);
747 static void dispc_ovl_set_output_size(enum omap_plane plane
, int width
,
752 BUG_ON(plane
== OMAP_DSS_GFX
);
754 val
= FLD_VAL(height
- 1, 26, 16) | FLD_VAL(width
- 1, 10, 0);
756 if (plane
== OMAP_DSS_WB
)
757 dispc_write_reg(DISPC_OVL_PICTURE_SIZE(plane
), val
);
759 dispc_write_reg(DISPC_OVL_SIZE(plane
), val
);
762 static void dispc_ovl_set_zorder(enum omap_plane plane
,
763 enum omap_overlay_caps caps
, u8 zorder
)
765 if ((caps
& OMAP_DSS_OVL_CAP_ZORDER
) == 0)
768 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane
), zorder
, 27, 26);
771 static void dispc_ovl_enable_zorder_planes(void)
775 if (!dss_has_feature(FEAT_ALPHA_FREE_ZORDER
))
778 for (i
= 0; i
< dss_feat_get_num_ovls(); i
++)
779 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(i
), 1, 25, 25);
782 static void dispc_ovl_set_pre_mult_alpha(enum omap_plane plane
,
783 enum omap_overlay_caps caps
, bool enable
)
785 if ((caps
& OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA
) == 0)
788 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane
), enable
? 1 : 0, 28, 28);
791 static void dispc_ovl_setup_global_alpha(enum omap_plane plane
,
792 enum omap_overlay_caps caps
, u8 global_alpha
)
794 static const unsigned shifts
[] = { 0, 8, 16, 24, };
797 if ((caps
& OMAP_DSS_OVL_CAP_GLOBAL_ALPHA
) == 0)
800 shift
= shifts
[plane
];
801 REG_FLD_MOD(DISPC_GLOBAL_ALPHA
, global_alpha
, shift
+ 7, shift
);
804 static void dispc_ovl_set_pix_inc(enum omap_plane plane
, s32 inc
)
806 dispc_write_reg(DISPC_OVL_PIXEL_INC(plane
), inc
);
809 static void dispc_ovl_set_row_inc(enum omap_plane plane
, s32 inc
)
811 dispc_write_reg(DISPC_OVL_ROW_INC(plane
), inc
);
814 static void dispc_ovl_set_color_mode(enum omap_plane plane
,
815 enum omap_color_mode color_mode
)
818 if (plane
!= OMAP_DSS_GFX
) {
819 switch (color_mode
) {
820 case OMAP_DSS_COLOR_NV12
:
822 case OMAP_DSS_COLOR_RGBX16
:
824 case OMAP_DSS_COLOR_RGBA16
:
826 case OMAP_DSS_COLOR_RGB12U
:
828 case OMAP_DSS_COLOR_ARGB16
:
830 case OMAP_DSS_COLOR_RGB16
:
832 case OMAP_DSS_COLOR_ARGB16_1555
:
834 case OMAP_DSS_COLOR_RGB24U
:
836 case OMAP_DSS_COLOR_RGB24P
:
838 case OMAP_DSS_COLOR_YUV2
:
840 case OMAP_DSS_COLOR_UYVY
:
842 case OMAP_DSS_COLOR_ARGB32
:
844 case OMAP_DSS_COLOR_RGBA32
:
846 case OMAP_DSS_COLOR_RGBX32
:
848 case OMAP_DSS_COLOR_XRGB16_1555
:
854 switch (color_mode
) {
855 case OMAP_DSS_COLOR_CLUT1
:
857 case OMAP_DSS_COLOR_CLUT2
:
859 case OMAP_DSS_COLOR_CLUT4
:
861 case OMAP_DSS_COLOR_CLUT8
:
863 case OMAP_DSS_COLOR_RGB12U
:
865 case OMAP_DSS_COLOR_ARGB16
:
867 case OMAP_DSS_COLOR_RGB16
:
869 case OMAP_DSS_COLOR_ARGB16_1555
:
871 case OMAP_DSS_COLOR_RGB24U
:
873 case OMAP_DSS_COLOR_RGB24P
:
875 case OMAP_DSS_COLOR_RGBX16
:
877 case OMAP_DSS_COLOR_RGBA16
:
879 case OMAP_DSS_COLOR_ARGB32
:
881 case OMAP_DSS_COLOR_RGBA32
:
883 case OMAP_DSS_COLOR_RGBX32
:
885 case OMAP_DSS_COLOR_XRGB16_1555
:
892 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane
), m
, 4, 1);
895 static void dispc_ovl_configure_burst_type(enum omap_plane plane
,
896 enum omap_dss_rotation_type rotation_type
)
898 if (dss_has_feature(FEAT_BURST_2D
) == 0)
901 if (rotation_type
== OMAP_DSS_ROT_TILER
)
902 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane
), 1, 29, 29);
904 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane
), 0, 29, 29);
907 void dispc_ovl_set_channel_out(enum omap_plane plane
, enum omap_channel channel
)
911 int chan
= 0, chan2
= 0;
917 case OMAP_DSS_VIDEO1
:
918 case OMAP_DSS_VIDEO2
:
919 case OMAP_DSS_VIDEO3
:
927 val
= dispc_read_reg(DISPC_OVL_ATTRIBUTES(plane
));
928 if (dss_has_feature(FEAT_MGR_LCD2
)) {
930 case OMAP_DSS_CHANNEL_LCD
:
934 case OMAP_DSS_CHANNEL_DIGIT
:
938 case OMAP_DSS_CHANNEL_LCD2
:
942 case OMAP_DSS_CHANNEL_LCD3
:
943 if (dss_has_feature(FEAT_MGR_LCD3
)) {
956 val
= FLD_MOD(val
, chan
, shift
, shift
);
957 val
= FLD_MOD(val
, chan2
, 31, 30);
959 val
= FLD_MOD(val
, channel
, shift
, shift
);
961 dispc_write_reg(DISPC_OVL_ATTRIBUTES(plane
), val
);
963 EXPORT_SYMBOL(dispc_ovl_set_channel_out
);
965 static enum omap_channel
dispc_ovl_get_channel_out(enum omap_plane plane
)
969 enum omap_channel channel
;
975 case OMAP_DSS_VIDEO1
:
976 case OMAP_DSS_VIDEO2
:
977 case OMAP_DSS_VIDEO3
:
985 val
= dispc_read_reg(DISPC_OVL_ATTRIBUTES(plane
));
987 if (dss_has_feature(FEAT_MGR_LCD3
)) {
988 if (FLD_GET(val
, 31, 30) == 0)
989 channel
= FLD_GET(val
, shift
, shift
);
990 else if (FLD_GET(val
, 31, 30) == 1)
991 channel
= OMAP_DSS_CHANNEL_LCD2
;
993 channel
= OMAP_DSS_CHANNEL_LCD3
;
994 } else if (dss_has_feature(FEAT_MGR_LCD2
)) {
995 if (FLD_GET(val
, 31, 30) == 0)
996 channel
= FLD_GET(val
, shift
, shift
);
998 channel
= OMAP_DSS_CHANNEL_LCD2
;
1000 channel
= FLD_GET(val
, shift
, shift
);
1006 void dispc_wb_set_channel_in(enum dss_writeback_channel channel
)
1008 enum omap_plane plane
= OMAP_DSS_WB
;
1010 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane
), channel
, 18, 16);
1013 static void dispc_ovl_set_burst_size(enum omap_plane plane
,
1014 enum omap_burst_size burst_size
)
1016 static const unsigned shifts
[] = { 6, 14, 14, 14, 14, };
1019 shift
= shifts
[plane
];
1020 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane
), burst_size
, shift
+ 1, shift
);
1023 static void dispc_configure_burst_sizes(void)
1026 const int burst_size
= BURST_SIZE_X8
;
1028 /* Configure burst size always to maximum size */
1029 for (i
= 0; i
< dss_feat_get_num_ovls(); ++i
)
1030 dispc_ovl_set_burst_size(i
, burst_size
);
1033 static u32
dispc_ovl_get_burst_size(enum omap_plane plane
)
1035 unsigned unit
= dss_feat_get_burst_size_unit();
1036 /* burst multiplier is always x8 (see dispc_configure_burst_sizes()) */
1040 void dispc_enable_gamma_table(bool enable
)
1043 * This is partially implemented to support only disabling of
1047 DSSWARN("Gamma table enabling for TV not yet supported");
1051 REG_FLD_MOD(DISPC_CONFIG
, enable
, 9, 9);
1054 static void dispc_mgr_enable_cpr(enum omap_channel channel
, bool enable
)
1056 if (channel
== OMAP_DSS_CHANNEL_DIGIT
)
1059 mgr_fld_write(channel
, DISPC_MGR_FLD_CPR
, enable
);
1062 static void dispc_mgr_set_cpr_coef(enum omap_channel channel
,
1063 const struct omap_dss_cpr_coefs
*coefs
)
1065 u32 coef_r
, coef_g
, coef_b
;
1067 if (!dss_mgr_is_lcd(channel
))
1070 coef_r
= FLD_VAL(coefs
->rr
, 31, 22) | FLD_VAL(coefs
->rg
, 20, 11) |
1071 FLD_VAL(coefs
->rb
, 9, 0);
1072 coef_g
= FLD_VAL(coefs
->gr
, 31, 22) | FLD_VAL(coefs
->gg
, 20, 11) |
1073 FLD_VAL(coefs
->gb
, 9, 0);
1074 coef_b
= FLD_VAL(coefs
->br
, 31, 22) | FLD_VAL(coefs
->bg
, 20, 11) |
1075 FLD_VAL(coefs
->bb
, 9, 0);
1077 dispc_write_reg(DISPC_CPR_COEF_R(channel
), coef_r
);
1078 dispc_write_reg(DISPC_CPR_COEF_G(channel
), coef_g
);
1079 dispc_write_reg(DISPC_CPR_COEF_B(channel
), coef_b
);
1082 static void dispc_ovl_set_vid_color_conv(enum omap_plane plane
, bool enable
)
1086 BUG_ON(plane
== OMAP_DSS_GFX
);
1088 val
= dispc_read_reg(DISPC_OVL_ATTRIBUTES(plane
));
1089 val
= FLD_MOD(val
, enable
, 9, 9);
1090 dispc_write_reg(DISPC_OVL_ATTRIBUTES(plane
), val
);
1093 static void dispc_ovl_enable_replication(enum omap_plane plane
,
1094 enum omap_overlay_caps caps
, bool enable
)
1096 static const unsigned shifts
[] = { 5, 10, 10, 10 };
1099 if ((caps
& OMAP_DSS_OVL_CAP_REPLICATION
) == 0)
1102 shift
= shifts
[plane
];
1103 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane
), enable
, shift
, shift
);
1106 static void dispc_mgr_set_size(enum omap_channel channel
, u16 width
,
1111 val
= FLD_VAL(height
- 1, dispc
.feat
->mgr_height_start
, 16) |
1112 FLD_VAL(width
- 1, dispc
.feat
->mgr_width_start
, 0);
1114 dispc_write_reg(DISPC_SIZE_MGR(channel
), val
);
1117 static void dispc_init_fifos(void)
1124 unit
= dss_feat_get_buffer_size_unit();
1126 dss_feat_get_reg_field(FEAT_REG_FIFOSIZE
, &start
, &end
);
1128 for (fifo
= 0; fifo
< dispc
.feat
->num_fifos
; ++fifo
) {
1129 size
= REG_GET(DISPC_OVL_FIFO_SIZE_STATUS(fifo
), start
, end
);
1131 dispc
.fifo_size
[fifo
] = size
;
1134 * By default fifos are mapped directly to overlays, fifo 0 to
1135 * ovl 0, fifo 1 to ovl 1, etc.
1137 dispc
.fifo_assignment
[fifo
] = fifo
;
1141 * The GFX fifo on OMAP4 is smaller than the other fifos. The small fifo
1142 * causes problems with certain use cases, like using the tiler in 2D
1143 * mode. The below hack swaps the fifos of GFX and WB planes, thus
1144 * giving GFX plane a larger fifo. WB but should work fine with a
1147 if (dispc
.feat
->gfx_fifo_workaround
) {
1150 v
= dispc_read_reg(DISPC_GLOBAL_BUFFER
);
1152 v
= FLD_MOD(v
, 4, 2, 0); /* GFX BUF top to WB */
1153 v
= FLD_MOD(v
, 4, 5, 3); /* GFX BUF bottom to WB */
1154 v
= FLD_MOD(v
, 0, 26, 24); /* WB BUF top to GFX */
1155 v
= FLD_MOD(v
, 0, 29, 27); /* WB BUF bottom to GFX */
1157 dispc_write_reg(DISPC_GLOBAL_BUFFER
, v
);
1159 dispc
.fifo_assignment
[OMAP_DSS_GFX
] = OMAP_DSS_WB
;
1160 dispc
.fifo_assignment
[OMAP_DSS_WB
] = OMAP_DSS_GFX
;
1164 static u32
dispc_ovl_get_fifo_size(enum omap_plane plane
)
1169 for (fifo
= 0; fifo
< dispc
.feat
->num_fifos
; ++fifo
) {
1170 if (dispc
.fifo_assignment
[fifo
] == plane
)
1171 size
+= dispc
.fifo_size
[fifo
];
1177 void dispc_ovl_set_fifo_threshold(enum omap_plane plane
, u32 low
, u32 high
)
1179 u8 hi_start
, hi_end
, lo_start
, lo_end
;
1182 unit
= dss_feat_get_buffer_size_unit();
1184 WARN_ON(low
% unit
!= 0);
1185 WARN_ON(high
% unit
!= 0);
1190 dss_feat_get_reg_field(FEAT_REG_FIFOHIGHTHRESHOLD
, &hi_start
, &hi_end
);
1191 dss_feat_get_reg_field(FEAT_REG_FIFOLOWTHRESHOLD
, &lo_start
, &lo_end
);
1193 DSSDBG("fifo(%d) threshold (bytes), old %u/%u, new %u/%u\n",
1195 REG_GET(DISPC_OVL_FIFO_THRESHOLD(plane
),
1196 lo_start
, lo_end
) * unit
,
1197 REG_GET(DISPC_OVL_FIFO_THRESHOLD(plane
),
1198 hi_start
, hi_end
) * unit
,
1199 low
* unit
, high
* unit
);
1201 dispc_write_reg(DISPC_OVL_FIFO_THRESHOLD(plane
),
1202 FLD_VAL(high
, hi_start
, hi_end
) |
1203 FLD_VAL(low
, lo_start
, lo_end
));
1206 * configure the preload to the pipeline's high threhold, if HT it's too
1207 * large for the preload field, set the threshold to the maximum value
1208 * that can be held by the preload register
1210 if (dss_has_feature(FEAT_PRELOAD
) && dispc
.feat
->set_max_preload
&&
1211 plane
!= OMAP_DSS_WB
)
1212 dispc_write_reg(DISPC_OVL_PRELOAD(plane
), min(high
, 0xfffu
));
1214 EXPORT_SYMBOL(dispc_ovl_set_fifo_threshold
);
1216 void dispc_enable_fifomerge(bool enable
)
1218 if (!dss_has_feature(FEAT_FIFO_MERGE
)) {
1223 DSSDBG("FIFO merge %s\n", enable
? "enabled" : "disabled");
1224 REG_FLD_MOD(DISPC_CONFIG
, enable
? 1 : 0, 14, 14);
1227 void dispc_ovl_compute_fifo_thresholds(enum omap_plane plane
,
1228 u32
*fifo_low
, u32
*fifo_high
, bool use_fifomerge
,
1232 * All sizes are in bytes. Both the buffer and burst are made of
1233 * buffer_units, and the fifo thresholds must be buffer_unit aligned.
1236 unsigned buf_unit
= dss_feat_get_buffer_size_unit();
1237 unsigned ovl_fifo_size
, total_fifo_size
, burst_size
;
1240 burst_size
= dispc_ovl_get_burst_size(plane
);
1241 ovl_fifo_size
= dispc_ovl_get_fifo_size(plane
);
1243 if (use_fifomerge
) {
1244 total_fifo_size
= 0;
1245 for (i
= 0; i
< dss_feat_get_num_ovls(); ++i
)
1246 total_fifo_size
+= dispc_ovl_get_fifo_size(i
);
1248 total_fifo_size
= ovl_fifo_size
;
1252 * We use the same low threshold for both fifomerge and non-fifomerge
1253 * cases, but for fifomerge we calculate the high threshold using the
1254 * combined fifo size
1257 if (manual_update
&& dss_has_feature(FEAT_OMAP3_DSI_FIFO_BUG
)) {
1258 *fifo_low
= ovl_fifo_size
- burst_size
* 2;
1259 *fifo_high
= total_fifo_size
- burst_size
;
1260 } else if (plane
== OMAP_DSS_WB
) {
1262 * Most optimal configuration for writeback is to push out data
1263 * to the interconnect the moment writeback pushes enough pixels
1264 * in the FIFO to form a burst
1267 *fifo_high
= burst_size
;
1269 *fifo_low
= ovl_fifo_size
- burst_size
;
1270 *fifo_high
= total_fifo_size
- buf_unit
;
1273 EXPORT_SYMBOL(dispc_ovl_compute_fifo_thresholds
);
1275 static void dispc_ovl_set_fir(enum omap_plane plane
,
1277 enum omap_color_component color_comp
)
1281 if (color_comp
== DISPC_COLOR_COMPONENT_RGB_Y
) {
1282 u8 hinc_start
, hinc_end
, vinc_start
, vinc_end
;
1284 dss_feat_get_reg_field(FEAT_REG_FIRHINC
,
1285 &hinc_start
, &hinc_end
);
1286 dss_feat_get_reg_field(FEAT_REG_FIRVINC
,
1287 &vinc_start
, &vinc_end
);
1288 val
= FLD_VAL(vinc
, vinc_start
, vinc_end
) |
1289 FLD_VAL(hinc
, hinc_start
, hinc_end
);
1291 dispc_write_reg(DISPC_OVL_FIR(plane
), val
);
1293 val
= FLD_VAL(vinc
, 28, 16) | FLD_VAL(hinc
, 12, 0);
1294 dispc_write_reg(DISPC_OVL_FIR2(plane
), val
);
1298 static void dispc_ovl_set_vid_accu0(enum omap_plane plane
, int haccu
, int vaccu
)
1301 u8 hor_start
, hor_end
, vert_start
, vert_end
;
1303 dss_feat_get_reg_field(FEAT_REG_HORIZONTALACCU
, &hor_start
, &hor_end
);
1304 dss_feat_get_reg_field(FEAT_REG_VERTICALACCU
, &vert_start
, &vert_end
);
1306 val
= FLD_VAL(vaccu
, vert_start
, vert_end
) |
1307 FLD_VAL(haccu
, hor_start
, hor_end
);
1309 dispc_write_reg(DISPC_OVL_ACCU0(plane
), val
);
1312 static void dispc_ovl_set_vid_accu1(enum omap_plane plane
, int haccu
, int vaccu
)
1315 u8 hor_start
, hor_end
, vert_start
, vert_end
;
1317 dss_feat_get_reg_field(FEAT_REG_HORIZONTALACCU
, &hor_start
, &hor_end
);
1318 dss_feat_get_reg_field(FEAT_REG_VERTICALACCU
, &vert_start
, &vert_end
);
1320 val
= FLD_VAL(vaccu
, vert_start
, vert_end
) |
1321 FLD_VAL(haccu
, hor_start
, hor_end
);
1323 dispc_write_reg(DISPC_OVL_ACCU1(plane
), val
);
1326 static void dispc_ovl_set_vid_accu2_0(enum omap_plane plane
, int haccu
,
1331 val
= FLD_VAL(vaccu
, 26, 16) | FLD_VAL(haccu
, 10, 0);
1332 dispc_write_reg(DISPC_OVL_ACCU2_0(plane
), val
);
1335 static void dispc_ovl_set_vid_accu2_1(enum omap_plane plane
, int haccu
,
1340 val
= FLD_VAL(vaccu
, 26, 16) | FLD_VAL(haccu
, 10, 0);
1341 dispc_write_reg(DISPC_OVL_ACCU2_1(plane
), val
);
1344 static void dispc_ovl_set_scale_param(enum omap_plane plane
,
1345 u16 orig_width
, u16 orig_height
,
1346 u16 out_width
, u16 out_height
,
1347 bool five_taps
, u8 rotation
,
1348 enum omap_color_component color_comp
)
1350 int fir_hinc
, fir_vinc
;
1352 fir_hinc
= 1024 * orig_width
/ out_width
;
1353 fir_vinc
= 1024 * orig_height
/ out_height
;
1355 dispc_ovl_set_scale_coef(plane
, fir_hinc
, fir_vinc
, five_taps
,
1357 dispc_ovl_set_fir(plane
, fir_hinc
, fir_vinc
, color_comp
);
1360 static void dispc_ovl_set_accu_uv(enum omap_plane plane
,
1361 u16 orig_width
, u16 orig_height
, u16 out_width
, u16 out_height
,
1362 bool ilace
, enum omap_color_mode color_mode
, u8 rotation
)
1364 int h_accu2_0
, h_accu2_1
;
1365 int v_accu2_0
, v_accu2_1
;
1366 int chroma_hinc
, chroma_vinc
;
1376 const struct accu
*accu_table
;
1377 const struct accu
*accu_val
;
1379 static const struct accu accu_nv12
[4] = {
1380 { 0, 1, 0, 1 , -1, 2, 0, 1 },
1381 { 1, 2, -3, 4 , 0, 1, 0, 1 },
1382 { -1, 1, 0, 1 , -1, 2, 0, 1 },
1383 { -1, 2, -1, 2 , -1, 1, 0, 1 },
1386 static const struct accu accu_nv12_ilace
[4] = {
1387 { 0, 1, 0, 1 , -3, 4, -1, 4 },
1388 { -1, 4, -3, 4 , 0, 1, 0, 1 },
1389 { -1, 1, 0, 1 , -1, 4, -3, 4 },
1390 { -3, 4, -3, 4 , -1, 1, 0, 1 },
1393 static const struct accu accu_yuv
[4] = {
1394 { 0, 1, 0, 1, 0, 1, 0, 1 },
1395 { 0, 1, 0, 1, 0, 1, 0, 1 },
1396 { -1, 1, 0, 1, 0, 1, 0, 1 },
1397 { 0, 1, 0, 1, -1, 1, 0, 1 },
1401 case OMAP_DSS_ROT_0
:
1404 case OMAP_DSS_ROT_90
:
1407 case OMAP_DSS_ROT_180
:
1410 case OMAP_DSS_ROT_270
:
1418 switch (color_mode
) {
1419 case OMAP_DSS_COLOR_NV12
:
1421 accu_table
= accu_nv12_ilace
;
1423 accu_table
= accu_nv12
;
1425 case OMAP_DSS_COLOR_YUV2
:
1426 case OMAP_DSS_COLOR_UYVY
:
1427 accu_table
= accu_yuv
;
1434 accu_val
= &accu_table
[idx
];
1436 chroma_hinc
= 1024 * orig_width
/ out_width
;
1437 chroma_vinc
= 1024 * orig_height
/ out_height
;
1439 h_accu2_0
= (accu_val
->h0_m
* chroma_hinc
/ accu_val
->h0_n
) % 1024;
1440 h_accu2_1
= (accu_val
->h1_m
* chroma_hinc
/ accu_val
->h1_n
) % 1024;
1441 v_accu2_0
= (accu_val
->v0_m
* chroma_vinc
/ accu_val
->v0_n
) % 1024;
1442 v_accu2_1
= (accu_val
->v1_m
* chroma_vinc
/ accu_val
->v1_n
) % 1024;
1444 dispc_ovl_set_vid_accu2_0(plane
, h_accu2_0
, v_accu2_0
);
1445 dispc_ovl_set_vid_accu2_1(plane
, h_accu2_1
, v_accu2_1
);
1448 static void dispc_ovl_set_scaling_common(enum omap_plane plane
,
1449 u16 orig_width
, u16 orig_height
,
1450 u16 out_width
, u16 out_height
,
1451 bool ilace
, bool five_taps
,
1452 bool fieldmode
, enum omap_color_mode color_mode
,
1459 dispc_ovl_set_scale_param(plane
, orig_width
, orig_height
,
1460 out_width
, out_height
, five_taps
,
1461 rotation
, DISPC_COLOR_COMPONENT_RGB_Y
);
1462 l
= dispc_read_reg(DISPC_OVL_ATTRIBUTES(plane
));
1464 /* RESIZEENABLE and VERTICALTAPS */
1465 l
&= ~((0x3 << 5) | (0x1 << 21));
1466 l
|= (orig_width
!= out_width
) ? (1 << 5) : 0;
1467 l
|= (orig_height
!= out_height
) ? (1 << 6) : 0;
1468 l
|= five_taps
? (1 << 21) : 0;
1470 /* VRESIZECONF and HRESIZECONF */
1471 if (dss_has_feature(FEAT_RESIZECONF
)) {
1473 l
|= (orig_width
<= out_width
) ? 0 : (1 << 7);
1474 l
|= (orig_height
<= out_height
) ? 0 : (1 << 8);
1477 /* LINEBUFFERSPLIT */
1478 if (dss_has_feature(FEAT_LINEBUFFERSPLIT
)) {
1480 l
|= five_taps
? (1 << 22) : 0;
1483 dispc_write_reg(DISPC_OVL_ATTRIBUTES(plane
), l
);
1486 * field 0 = even field = bottom field
1487 * field 1 = odd field = top field
1489 if (ilace
&& !fieldmode
) {
1491 accu0
= ((1024 * orig_height
/ out_height
) / 2) & 0x3ff;
1492 if (accu0
>= 1024/2) {
1498 dispc_ovl_set_vid_accu0(plane
, 0, accu0
);
1499 dispc_ovl_set_vid_accu1(plane
, 0, accu1
);
1502 static void dispc_ovl_set_scaling_uv(enum omap_plane plane
,
1503 u16 orig_width
, u16 orig_height
,
1504 u16 out_width
, u16 out_height
,
1505 bool ilace
, bool five_taps
,
1506 bool fieldmode
, enum omap_color_mode color_mode
,
1509 int scale_x
= out_width
!= orig_width
;
1510 int scale_y
= out_height
!= orig_height
;
1511 bool chroma_upscale
= plane
!= OMAP_DSS_WB
? true : false;
1513 if (!dss_has_feature(FEAT_HANDLE_UV_SEPARATE
))
1515 if ((color_mode
!= OMAP_DSS_COLOR_YUV2
&&
1516 color_mode
!= OMAP_DSS_COLOR_UYVY
&&
1517 color_mode
!= OMAP_DSS_COLOR_NV12
)) {
1518 /* reset chroma resampling for RGB formats */
1519 if (plane
!= OMAP_DSS_WB
)
1520 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES2(plane
), 0, 8, 8);
1524 dispc_ovl_set_accu_uv(plane
, orig_width
, orig_height
, out_width
,
1525 out_height
, ilace
, color_mode
, rotation
);
1527 switch (color_mode
) {
1528 case OMAP_DSS_COLOR_NV12
:
1529 if (chroma_upscale
) {
1530 /* UV is subsampled by 2 horizontally and vertically */
1534 /* UV is downsampled by 2 horizontally and vertically */
1540 case OMAP_DSS_COLOR_YUV2
:
1541 case OMAP_DSS_COLOR_UYVY
:
1542 /* For YUV422 with 90/270 rotation, we don't upsample chroma */
1543 if (rotation
== OMAP_DSS_ROT_0
||
1544 rotation
== OMAP_DSS_ROT_180
) {
1546 /* UV is subsampled by 2 horizontally */
1549 /* UV is downsampled by 2 horizontally */
1553 /* must use FIR for YUV422 if rotated */
1554 if (rotation
!= OMAP_DSS_ROT_0
)
1555 scale_x
= scale_y
= true;
1563 if (out_width
!= orig_width
)
1565 if (out_height
!= orig_height
)
1568 dispc_ovl_set_scale_param(plane
, orig_width
, orig_height
,
1569 out_width
, out_height
, five_taps
,
1570 rotation
, DISPC_COLOR_COMPONENT_UV
);
1572 if (plane
!= OMAP_DSS_WB
)
1573 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES2(plane
),
1574 (scale_x
|| scale_y
) ? 1 : 0, 8, 8);
1577 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane
), scale_x
? 1 : 0, 5, 5);
1579 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane
), scale_y
? 1 : 0, 6, 6);
1582 static void dispc_ovl_set_scaling(enum omap_plane plane
,
1583 u16 orig_width
, u16 orig_height
,
1584 u16 out_width
, u16 out_height
,
1585 bool ilace
, bool five_taps
,
1586 bool fieldmode
, enum omap_color_mode color_mode
,
1589 BUG_ON(plane
== OMAP_DSS_GFX
);
1591 dispc_ovl_set_scaling_common(plane
,
1592 orig_width
, orig_height
,
1593 out_width
, out_height
,
1595 fieldmode
, color_mode
,
1598 dispc_ovl_set_scaling_uv(plane
,
1599 orig_width
, orig_height
,
1600 out_width
, out_height
,
1602 fieldmode
, color_mode
,
1606 static void dispc_ovl_set_rotation_attrs(enum omap_plane plane
, u8 rotation
,
1607 enum omap_dss_rotation_type rotation_type
,
1608 bool mirroring
, enum omap_color_mode color_mode
)
1610 bool row_repeat
= false;
1613 if (color_mode
== OMAP_DSS_COLOR_YUV2
||
1614 color_mode
== OMAP_DSS_COLOR_UYVY
) {
1618 case OMAP_DSS_ROT_0
:
1621 case OMAP_DSS_ROT_90
:
1624 case OMAP_DSS_ROT_180
:
1627 case OMAP_DSS_ROT_270
:
1633 case OMAP_DSS_ROT_0
:
1636 case OMAP_DSS_ROT_90
:
1639 case OMAP_DSS_ROT_180
:
1642 case OMAP_DSS_ROT_270
:
1648 if (rotation
== OMAP_DSS_ROT_90
|| rotation
== OMAP_DSS_ROT_270
)
1654 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane
), vidrot
, 13, 12);
1655 if (dss_has_feature(FEAT_ROWREPEATENABLE
))
1656 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane
),
1657 row_repeat
? 1 : 0, 18, 18);
1659 if (color_mode
== OMAP_DSS_COLOR_NV12
) {
1660 bool doublestride
= (rotation_type
== OMAP_DSS_ROT_TILER
) &&
1661 (rotation
== OMAP_DSS_ROT_0
||
1662 rotation
== OMAP_DSS_ROT_180
);
1664 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane
), doublestride
, 22, 22);
1669 static int color_mode_to_bpp(enum omap_color_mode color_mode
)
1671 switch (color_mode
) {
1672 case OMAP_DSS_COLOR_CLUT1
:
1674 case OMAP_DSS_COLOR_CLUT2
:
1676 case OMAP_DSS_COLOR_CLUT4
:
1678 case OMAP_DSS_COLOR_CLUT8
:
1679 case OMAP_DSS_COLOR_NV12
:
1681 case OMAP_DSS_COLOR_RGB12U
:
1682 case OMAP_DSS_COLOR_RGB16
:
1683 case OMAP_DSS_COLOR_ARGB16
:
1684 case OMAP_DSS_COLOR_YUV2
:
1685 case OMAP_DSS_COLOR_UYVY
:
1686 case OMAP_DSS_COLOR_RGBA16
:
1687 case OMAP_DSS_COLOR_RGBX16
:
1688 case OMAP_DSS_COLOR_ARGB16_1555
:
1689 case OMAP_DSS_COLOR_XRGB16_1555
:
1691 case OMAP_DSS_COLOR_RGB24P
:
1693 case OMAP_DSS_COLOR_RGB24U
:
1694 case OMAP_DSS_COLOR_ARGB32
:
1695 case OMAP_DSS_COLOR_RGBA32
:
1696 case OMAP_DSS_COLOR_RGBX32
:
1704 static s32
pixinc(int pixels
, u8 ps
)
1708 else if (pixels
> 1)
1709 return 1 + (pixels
- 1) * ps
;
1710 else if (pixels
< 0)
1711 return 1 - (-pixels
+ 1) * ps
;
1717 static void calc_vrfb_rotation_offset(u8 rotation
, bool mirror
,
1719 u16 width
, u16 height
,
1720 enum omap_color_mode color_mode
, bool fieldmode
,
1721 unsigned int field_offset
,
1722 unsigned *offset0
, unsigned *offset1
,
1723 s32
*row_inc
, s32
*pix_inc
, int x_predecim
, int y_predecim
)
1727 /* FIXME CLUT formats */
1728 switch (color_mode
) {
1729 case OMAP_DSS_COLOR_CLUT1
:
1730 case OMAP_DSS_COLOR_CLUT2
:
1731 case OMAP_DSS_COLOR_CLUT4
:
1732 case OMAP_DSS_COLOR_CLUT8
:
1735 case OMAP_DSS_COLOR_YUV2
:
1736 case OMAP_DSS_COLOR_UYVY
:
1740 ps
= color_mode_to_bpp(color_mode
) / 8;
1744 DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation
, screen_width
,
1748 * field 0 = even field = bottom field
1749 * field 1 = odd field = top field
1751 switch (rotation
+ mirror
* 4) {
1752 case OMAP_DSS_ROT_0
:
1753 case OMAP_DSS_ROT_180
:
1755 * If the pixel format is YUV or UYVY divide the width
1756 * of the image by 2 for 0 and 180 degree rotation.
1758 if (color_mode
== OMAP_DSS_COLOR_YUV2
||
1759 color_mode
== OMAP_DSS_COLOR_UYVY
)
1761 case OMAP_DSS_ROT_90
:
1762 case OMAP_DSS_ROT_270
:
1765 *offset0
= field_offset
* screen_width
* ps
;
1769 *row_inc
= pixinc(1 +
1770 (y_predecim
* screen_width
- x_predecim
* width
) +
1771 (fieldmode
? screen_width
: 0), ps
);
1772 *pix_inc
= pixinc(x_predecim
, ps
);
1775 case OMAP_DSS_ROT_0
+ 4:
1776 case OMAP_DSS_ROT_180
+ 4:
1777 /* If the pixel format is YUV or UYVY divide the width
1778 * of the image by 2 for 0 degree and 180 degree
1780 if (color_mode
== OMAP_DSS_COLOR_YUV2
||
1781 color_mode
== OMAP_DSS_COLOR_UYVY
)
1783 case OMAP_DSS_ROT_90
+ 4:
1784 case OMAP_DSS_ROT_270
+ 4:
1787 *offset0
= field_offset
* screen_width
* ps
;
1790 *row_inc
= pixinc(1 -
1791 (y_predecim
* screen_width
+ x_predecim
* width
) -
1792 (fieldmode
? screen_width
: 0), ps
);
1793 *pix_inc
= pixinc(x_predecim
, ps
);
1802 static void calc_dma_rotation_offset(u8 rotation
, bool mirror
,
1804 u16 width
, u16 height
,
1805 enum omap_color_mode color_mode
, bool fieldmode
,
1806 unsigned int field_offset
,
1807 unsigned *offset0
, unsigned *offset1
,
1808 s32
*row_inc
, s32
*pix_inc
, int x_predecim
, int y_predecim
)
1813 /* FIXME CLUT formats */
1814 switch (color_mode
) {
1815 case OMAP_DSS_COLOR_CLUT1
:
1816 case OMAP_DSS_COLOR_CLUT2
:
1817 case OMAP_DSS_COLOR_CLUT4
:
1818 case OMAP_DSS_COLOR_CLUT8
:
1822 ps
= color_mode_to_bpp(color_mode
) / 8;
1826 DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation
, screen_width
,
1829 /* width & height are overlay sizes, convert to fb sizes */
1831 if (rotation
== OMAP_DSS_ROT_0
|| rotation
== OMAP_DSS_ROT_180
) {
1840 * field 0 = even field = bottom field
1841 * field 1 = odd field = top field
1843 switch (rotation
+ mirror
* 4) {
1844 case OMAP_DSS_ROT_0
:
1847 *offset0
= *offset1
+ field_offset
* screen_width
* ps
;
1849 *offset0
= *offset1
;
1850 *row_inc
= pixinc(1 +
1851 (y_predecim
* screen_width
- fbw
* x_predecim
) +
1852 (fieldmode
? screen_width
: 0), ps
);
1853 if (color_mode
== OMAP_DSS_COLOR_YUV2
||
1854 color_mode
== OMAP_DSS_COLOR_UYVY
)
1855 *pix_inc
= pixinc(x_predecim
, 2 * ps
);
1857 *pix_inc
= pixinc(x_predecim
, ps
);
1859 case OMAP_DSS_ROT_90
:
1860 *offset1
= screen_width
* (fbh
- 1) * ps
;
1862 *offset0
= *offset1
+ field_offset
* ps
;
1864 *offset0
= *offset1
;
1865 *row_inc
= pixinc(screen_width
* (fbh
* x_predecim
- 1) +
1866 y_predecim
+ (fieldmode
? 1 : 0), ps
);
1867 *pix_inc
= pixinc(-x_predecim
* screen_width
, ps
);
1869 case OMAP_DSS_ROT_180
:
1870 *offset1
= (screen_width
* (fbh
- 1) + fbw
- 1) * ps
;
1872 *offset0
= *offset1
- field_offset
* screen_width
* ps
;
1874 *offset0
= *offset1
;
1875 *row_inc
= pixinc(-1 -
1876 (y_predecim
* screen_width
- fbw
* x_predecim
) -
1877 (fieldmode
? screen_width
: 0), ps
);
1878 if (color_mode
== OMAP_DSS_COLOR_YUV2
||
1879 color_mode
== OMAP_DSS_COLOR_UYVY
)
1880 *pix_inc
= pixinc(-x_predecim
, 2 * ps
);
1882 *pix_inc
= pixinc(-x_predecim
, ps
);
1884 case OMAP_DSS_ROT_270
:
1885 *offset1
= (fbw
- 1) * ps
;
1887 *offset0
= *offset1
- field_offset
* ps
;
1889 *offset0
= *offset1
;
1890 *row_inc
= pixinc(-screen_width
* (fbh
* x_predecim
- 1) -
1891 y_predecim
- (fieldmode
? 1 : 0), ps
);
1892 *pix_inc
= pixinc(x_predecim
* screen_width
, ps
);
1896 case OMAP_DSS_ROT_0
+ 4:
1897 *offset1
= (fbw
- 1) * ps
;
1899 *offset0
= *offset1
+ field_offset
* screen_width
* ps
;
1901 *offset0
= *offset1
;
1902 *row_inc
= pixinc(y_predecim
* screen_width
* 2 - 1 +
1903 (fieldmode
? screen_width
: 0),
1905 if (color_mode
== OMAP_DSS_COLOR_YUV2
||
1906 color_mode
== OMAP_DSS_COLOR_UYVY
)
1907 *pix_inc
= pixinc(-x_predecim
, 2 * ps
);
1909 *pix_inc
= pixinc(-x_predecim
, ps
);
1912 case OMAP_DSS_ROT_90
+ 4:
1915 *offset0
= *offset1
+ field_offset
* ps
;
1917 *offset0
= *offset1
;
1918 *row_inc
= pixinc(-screen_width
* (fbh
* x_predecim
- 1) +
1919 y_predecim
+ (fieldmode
? 1 : 0),
1921 *pix_inc
= pixinc(x_predecim
* screen_width
, ps
);
1924 case OMAP_DSS_ROT_180
+ 4:
1925 *offset1
= screen_width
* (fbh
- 1) * ps
;
1927 *offset0
= *offset1
- field_offset
* screen_width
* ps
;
1929 *offset0
= *offset1
;
1930 *row_inc
= pixinc(1 - y_predecim
* screen_width
* 2 -
1931 (fieldmode
? screen_width
: 0),
1933 if (color_mode
== OMAP_DSS_COLOR_YUV2
||
1934 color_mode
== OMAP_DSS_COLOR_UYVY
)
1935 *pix_inc
= pixinc(x_predecim
, 2 * ps
);
1937 *pix_inc
= pixinc(x_predecim
, ps
);
1940 case OMAP_DSS_ROT_270
+ 4:
1941 *offset1
= (screen_width
* (fbh
- 1) + fbw
- 1) * ps
;
1943 *offset0
= *offset1
- field_offset
* ps
;
1945 *offset0
= *offset1
;
1946 *row_inc
= pixinc(screen_width
* (fbh
* x_predecim
- 1) -
1947 y_predecim
- (fieldmode
? 1 : 0),
1949 *pix_inc
= pixinc(-x_predecim
* screen_width
, ps
);
1958 static void calc_tiler_rotation_offset(u16 screen_width
, u16 width
,
1959 enum omap_color_mode color_mode
, bool fieldmode
,
1960 unsigned int field_offset
, unsigned *offset0
, unsigned *offset1
,
1961 s32
*row_inc
, s32
*pix_inc
, int x_predecim
, int y_predecim
)
1965 switch (color_mode
) {
1966 case OMAP_DSS_COLOR_CLUT1
:
1967 case OMAP_DSS_COLOR_CLUT2
:
1968 case OMAP_DSS_COLOR_CLUT4
:
1969 case OMAP_DSS_COLOR_CLUT8
:
1973 ps
= color_mode_to_bpp(color_mode
) / 8;
1977 DSSDBG("scrw %d, width %d\n", screen_width
, width
);
1980 * field 0 = even field = bottom field
1981 * field 1 = odd field = top field
1985 *offset0
= *offset1
+ field_offset
* screen_width
* ps
;
1987 *offset0
= *offset1
;
1988 *row_inc
= pixinc(1 + (y_predecim
* screen_width
- width
* x_predecim
) +
1989 (fieldmode
? screen_width
: 0), ps
);
1990 if (color_mode
== OMAP_DSS_COLOR_YUV2
||
1991 color_mode
== OMAP_DSS_COLOR_UYVY
)
1992 *pix_inc
= pixinc(x_predecim
, 2 * ps
);
1994 *pix_inc
= pixinc(x_predecim
, ps
);
1998 * This function is used to avoid synclosts in OMAP3, because of some
1999 * undocumented horizontal position and timing related limitations.
2001 static int check_horiz_timing_omap3(unsigned long pclk
, unsigned long lclk
,
2002 const struct omap_video_timings
*t
, u16 pos_x
,
2003 u16 width
, u16 height
, u16 out_width
, u16 out_height
,
2006 const int ds
= DIV_ROUND_UP(height
, out_height
);
2007 unsigned long nonactive
;
2008 static const u8 limits
[3] = { 8, 10, 20 };
2012 nonactive
= t
->x_res
+ t
->hfp
+ t
->hsw
+ t
->hbp
- out_width
;
2015 if (out_height
< height
)
2017 if (out_width
< width
)
2019 blank
= div_u64((u64
)(t
->hbp
+ t
->hsw
+ t
->hfp
) * lclk
, pclk
);
2020 DSSDBG("blanking period + ppl = %llu (limit = %u)\n", blank
, limits
[i
]);
2021 if (blank
<= limits
[i
])
2024 /* FIXME add checks for 3-tap filter once the limitations are known */
2029 * Pixel data should be prepared before visible display point starts.
2030 * So, atleast DS-2 lines must have already been fetched by DISPC
2031 * during nonactive - pos_x period.
2033 val
= div_u64((u64
)(nonactive
- pos_x
) * lclk
, pclk
);
2034 DSSDBG("(nonactive - pos_x) * pcd = %llu max(0, DS - 2) * width = %d\n",
2035 val
, max(0, ds
- 2) * width
);
2036 if (val
< max(0, ds
- 2) * width
)
2040 * All lines need to be refilled during the nonactive period of which
2041 * only one line can be loaded during the active period. So, atleast
2042 * DS - 1 lines should be loaded during nonactive period.
2044 val
= div_u64((u64
)nonactive
* lclk
, pclk
);
2045 DSSDBG("nonactive * pcd = %llu, max(0, DS - 1) * width = %d\n",
2046 val
, max(0, ds
- 1) * width
);
2047 if (val
< max(0, ds
- 1) * width
)
2053 static unsigned long calc_core_clk_five_taps(unsigned long pclk
,
2054 const struct omap_video_timings
*mgr_timings
, u16 width
,
2055 u16 height
, u16 out_width
, u16 out_height
,
2056 enum omap_color_mode color_mode
)
2061 if (height
<= out_height
&& width
<= out_width
)
2062 return (unsigned long) pclk
;
2064 if (height
> out_height
) {
2065 unsigned int ppl
= mgr_timings
->x_res
;
2067 tmp
= pclk
* height
* out_width
;
2068 do_div(tmp
, 2 * out_height
* ppl
);
2071 if (height
> 2 * out_height
) {
2072 if (ppl
== out_width
)
2075 tmp
= pclk
* (height
- 2 * out_height
) * out_width
;
2076 do_div(tmp
, 2 * out_height
* (ppl
- out_width
));
2077 core_clk
= max_t(u32
, core_clk
, tmp
);
2081 if (width
> out_width
) {
2083 do_div(tmp
, out_width
);
2084 core_clk
= max_t(u32
, core_clk
, tmp
);
2086 if (color_mode
== OMAP_DSS_COLOR_RGB24U
)
2093 static unsigned long calc_core_clk_24xx(unsigned long pclk
, u16 width
,
2094 u16 height
, u16 out_width
, u16 out_height
, bool mem_to_mem
)
2096 if (height
> out_height
&& width
> out_width
)
2102 static unsigned long calc_core_clk_34xx(unsigned long pclk
, u16 width
,
2103 u16 height
, u16 out_width
, u16 out_height
, bool mem_to_mem
)
2105 unsigned int hf
, vf
;
2108 * FIXME how to determine the 'A' factor
2109 * for the no downscaling case ?
2112 if (width
> 3 * out_width
)
2114 else if (width
> 2 * out_width
)
2116 else if (width
> out_width
)
2120 if (height
> out_height
)
2125 return pclk
* vf
* hf
;
2128 static unsigned long calc_core_clk_44xx(unsigned long pclk
, u16 width
,
2129 u16 height
, u16 out_width
, u16 out_height
, bool mem_to_mem
)
2132 * If the overlay/writeback is in mem to mem mode, there are no
2133 * downscaling limitations with respect to pixel clock, return 1 as
2134 * required core clock to represent that we have sufficient enough
2135 * core clock to do maximum downscaling
2140 if (width
> out_width
)
2141 return DIV_ROUND_UP(pclk
, out_width
) * width
;
2146 static int dispc_ovl_calc_scaling_24xx(unsigned long pclk
, unsigned long lclk
,
2147 const struct omap_video_timings
*mgr_timings
,
2148 u16 width
, u16 height
, u16 out_width
, u16 out_height
,
2149 enum omap_color_mode color_mode
, bool *five_taps
,
2150 int *x_predecim
, int *y_predecim
, int *decim_x
, int *decim_y
,
2151 u16 pos_x
, unsigned long *core_clk
, bool mem_to_mem
)
2154 u16 in_width
, in_height
;
2155 int min_factor
= min(*decim_x
, *decim_y
);
2156 const int maxsinglelinewidth
=
2157 dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH
);
2162 in_height
= height
/ *decim_y
;
2163 in_width
= width
/ *decim_x
;
2164 *core_clk
= dispc
.feat
->calc_core_clk(pclk
, in_width
,
2165 in_height
, out_width
, out_height
, mem_to_mem
);
2166 error
= (in_width
> maxsinglelinewidth
|| !*core_clk
||
2167 *core_clk
> dispc_core_clk_rate());
2169 if (*decim_x
== *decim_y
) {
2170 *decim_x
= min_factor
;
2173 swap(*decim_x
, *decim_y
);
2174 if (*decim_x
< *decim_y
)
2178 } while (*decim_x
<= *x_predecim
&& *decim_y
<= *y_predecim
&& error
);
2180 if (in_width
> maxsinglelinewidth
) {
2181 DSSERR("Cannot scale max input width exceeded");
2187 static int dispc_ovl_calc_scaling_34xx(unsigned long pclk
, unsigned long lclk
,
2188 const struct omap_video_timings
*mgr_timings
,
2189 u16 width
, u16 height
, u16 out_width
, u16 out_height
,
2190 enum omap_color_mode color_mode
, bool *five_taps
,
2191 int *x_predecim
, int *y_predecim
, int *decim_x
, int *decim_y
,
2192 u16 pos_x
, unsigned long *core_clk
, bool mem_to_mem
)
2195 u16 in_width
, in_height
;
2196 int min_factor
= min(*decim_x
, *decim_y
);
2197 const int maxsinglelinewidth
=
2198 dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH
);
2201 in_height
= height
/ *decim_y
;
2202 in_width
= width
/ *decim_x
;
2203 *five_taps
= in_height
> out_height
;
2205 if (in_width
> maxsinglelinewidth
)
2206 if (in_height
> out_height
&&
2207 in_height
< out_height
* 2)
2211 *core_clk
= calc_core_clk_five_taps(pclk
, mgr_timings
,
2212 in_width
, in_height
, out_width
,
2213 out_height
, color_mode
);
2215 *core_clk
= dispc
.feat
->calc_core_clk(pclk
, in_width
,
2216 in_height
, out_width
, out_height
,
2219 error
= check_horiz_timing_omap3(pclk
, lclk
, mgr_timings
,
2220 pos_x
, in_width
, in_height
, out_width
,
2221 out_height
, *five_taps
);
2222 if (error
&& *five_taps
) {
2227 error
= (error
|| in_width
> maxsinglelinewidth
* 2 ||
2228 (in_width
> maxsinglelinewidth
&& *five_taps
) ||
2229 !*core_clk
|| *core_clk
> dispc_core_clk_rate());
2231 if (*decim_x
== *decim_y
) {
2232 *decim_x
= min_factor
;
2235 swap(*decim_x
, *decim_y
);
2236 if (*decim_x
< *decim_y
)
2240 } while (*decim_x
<= *x_predecim
&& *decim_y
<= *y_predecim
&& error
);
2242 if (check_horiz_timing_omap3(pclk
, lclk
, mgr_timings
, pos_x
, width
,
2243 height
, out_width
, out_height
, *five_taps
)) {
2244 DSSERR("horizontal timing too tight\n");
2248 if (in_width
> (maxsinglelinewidth
* 2)) {
2249 DSSERR("Cannot setup scaling");
2250 DSSERR("width exceeds maximum width possible");
2254 if (in_width
> maxsinglelinewidth
&& *five_taps
) {
2255 DSSERR("cannot setup scaling with five taps");
2261 static int dispc_ovl_calc_scaling_44xx(unsigned long pclk
, unsigned long lclk
,
2262 const struct omap_video_timings
*mgr_timings
,
2263 u16 width
, u16 height
, u16 out_width
, u16 out_height
,
2264 enum omap_color_mode color_mode
, bool *five_taps
,
2265 int *x_predecim
, int *y_predecim
, int *decim_x
, int *decim_y
,
2266 u16 pos_x
, unsigned long *core_clk
, bool mem_to_mem
)
2268 u16 in_width
, in_width_max
;
2269 int decim_x_min
= *decim_x
;
2270 u16 in_height
= height
/ *decim_y
;
2271 const int maxsinglelinewidth
=
2272 dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH
);
2273 const int maxdownscale
= dss_feat_get_param_max(FEAT_PARAM_DOWNSCALE
);
2276 in_width_max
= out_width
* maxdownscale
;
2278 in_width_max
= dispc_core_clk_rate() /
2279 DIV_ROUND_UP(pclk
, out_width
);
2282 *decim_x
= DIV_ROUND_UP(width
, in_width_max
);
2284 *decim_x
= *decim_x
> decim_x_min
? *decim_x
: decim_x_min
;
2285 if (*decim_x
> *x_predecim
)
2289 in_width
= width
/ *decim_x
;
2290 } while (*decim_x
<= *x_predecim
&&
2291 in_width
> maxsinglelinewidth
&& ++*decim_x
);
2293 if (in_width
> maxsinglelinewidth
) {
2294 DSSERR("Cannot scale width exceeds max line width");
2298 *core_clk
= dispc
.feat
->calc_core_clk(pclk
, in_width
, in_height
,
2299 out_width
, out_height
, mem_to_mem
);
2303 static int dispc_ovl_calc_scaling(unsigned long pclk
, unsigned long lclk
,
2304 enum omap_overlay_caps caps
,
2305 const struct omap_video_timings
*mgr_timings
,
2306 u16 width
, u16 height
, u16 out_width
, u16 out_height
,
2307 enum omap_color_mode color_mode
, bool *five_taps
,
2308 int *x_predecim
, int *y_predecim
, u16 pos_x
,
2309 enum omap_dss_rotation_type rotation_type
, bool mem_to_mem
)
2311 const int maxdownscale
= dss_feat_get_param_max(FEAT_PARAM_DOWNSCALE
);
2312 const int max_decim_limit
= 16;
2313 unsigned long core_clk
= 0;
2314 int decim_x
, decim_y
, ret
;
2316 if (width
== out_width
&& height
== out_height
)
2319 if ((caps
& OMAP_DSS_OVL_CAP_SCALE
) == 0)
2323 *x_predecim
= *y_predecim
= 1;
2325 *x_predecim
= max_decim_limit
;
2326 *y_predecim
= (rotation_type
== OMAP_DSS_ROT_TILER
&&
2327 dss_has_feature(FEAT_BURST_2D
)) ?
2328 2 : max_decim_limit
;
2331 if (color_mode
== OMAP_DSS_COLOR_CLUT1
||
2332 color_mode
== OMAP_DSS_COLOR_CLUT2
||
2333 color_mode
== OMAP_DSS_COLOR_CLUT4
||
2334 color_mode
== OMAP_DSS_COLOR_CLUT8
) {
2341 decim_x
= DIV_ROUND_UP(DIV_ROUND_UP(width
, out_width
), maxdownscale
);
2342 decim_y
= DIV_ROUND_UP(DIV_ROUND_UP(height
, out_height
), maxdownscale
);
2344 if (decim_x
> *x_predecim
|| out_width
> width
* 8)
2347 if (decim_y
> *y_predecim
|| out_height
> height
* 8)
2350 ret
= dispc
.feat
->calc_scaling(pclk
, lclk
, mgr_timings
, width
, height
,
2351 out_width
, out_height
, color_mode
, five_taps
,
2352 x_predecim
, y_predecim
, &decim_x
, &decim_y
, pos_x
, &core_clk
,
2357 DSSDBG("required core clk rate = %lu Hz\n", core_clk
);
2358 DSSDBG("current core clk rate = %lu Hz\n", dispc_core_clk_rate());
2360 if (!core_clk
|| core_clk
> dispc_core_clk_rate()) {
2361 DSSERR("failed to set up scaling, "
2362 "required core clk rate = %lu Hz, "
2363 "current core clk rate = %lu Hz\n",
2364 core_clk
, dispc_core_clk_rate());
2368 *x_predecim
= decim_x
;
2369 *y_predecim
= decim_y
;
2373 int dispc_ovl_check(enum omap_plane plane
, enum omap_channel channel
,
2374 const struct omap_overlay_info
*oi
,
2375 const struct omap_video_timings
*timings
,
2376 int *x_predecim
, int *y_predecim
)
2378 enum omap_overlay_caps caps
= dss_feat_get_overlay_caps(plane
);
2379 bool five_taps
= true;
2380 bool fieldmode
= false;
2381 u16 in_height
= oi
->height
;
2382 u16 in_width
= oi
->width
;
2383 bool ilace
= timings
->interlace
;
2384 u16 out_width
, out_height
;
2385 int pos_x
= oi
->pos_x
;
2386 unsigned long pclk
= dispc_mgr_pclk_rate(channel
);
2387 unsigned long lclk
= dispc_mgr_lclk_rate(channel
);
2389 out_width
= oi
->out_width
== 0 ? oi
->width
: oi
->out_width
;
2390 out_height
= oi
->out_height
== 0 ? oi
->height
: oi
->out_height
;
2392 if (ilace
&& oi
->height
== out_height
)
2400 DSSDBG("adjusting for ilace: height %d, out_height %d\n",
2401 in_height
, out_height
);
2404 if (!dss_feat_color_mode_supported(plane
, oi
->color_mode
))
2407 return dispc_ovl_calc_scaling(pclk
, lclk
, caps
, timings
, in_width
,
2408 in_height
, out_width
, out_height
, oi
->color_mode
,
2409 &five_taps
, x_predecim
, y_predecim
, pos_x
,
2410 oi
->rotation_type
, false);
2412 EXPORT_SYMBOL(dispc_ovl_check
);
2414 static int dispc_ovl_setup_common(enum omap_plane plane
,
2415 enum omap_overlay_caps caps
, u32 paddr
, u32 p_uv_addr
,
2416 u16 screen_width
, int pos_x
, int pos_y
, u16 width
, u16 height
,
2417 u16 out_width
, u16 out_height
, enum omap_color_mode color_mode
,
2418 u8 rotation
, bool mirror
, u8 zorder
, u8 pre_mult_alpha
,
2419 u8 global_alpha
, enum omap_dss_rotation_type rotation_type
,
2420 bool replication
, const struct omap_video_timings
*mgr_timings
,
2423 bool five_taps
= true;
2424 bool fieldmode
= false;
2426 unsigned offset0
, offset1
;
2429 u16 frame_width
, frame_height
;
2430 unsigned int field_offset
= 0;
2431 u16 in_height
= height
;
2432 u16 in_width
= width
;
2433 int x_predecim
= 1, y_predecim
= 1;
2434 bool ilace
= mgr_timings
->interlace
;
2435 unsigned long pclk
= dispc_plane_pclk_rate(plane
);
2436 unsigned long lclk
= dispc_plane_lclk_rate(plane
);
2441 out_width
= out_width
== 0 ? width
: out_width
;
2442 out_height
= out_height
== 0 ? height
: out_height
;
2444 if (ilace
&& height
== out_height
)
2453 DSSDBG("adjusting for ilace: height %d, pos_y %d, "
2454 "out_height %d\n", in_height
, pos_y
,
2458 if (!dss_feat_color_mode_supported(plane
, color_mode
))
2461 r
= dispc_ovl_calc_scaling(pclk
, lclk
, caps
, mgr_timings
, in_width
,
2462 in_height
, out_width
, out_height
, color_mode
,
2463 &five_taps
, &x_predecim
, &y_predecim
, pos_x
,
2464 rotation_type
, mem_to_mem
);
2468 in_width
= in_width
/ x_predecim
;
2469 in_height
= in_height
/ y_predecim
;
2471 if (color_mode
== OMAP_DSS_COLOR_YUV2
||
2472 color_mode
== OMAP_DSS_COLOR_UYVY
||
2473 color_mode
== OMAP_DSS_COLOR_NV12
)
2476 if (ilace
&& !fieldmode
) {
2478 * when downscaling the bottom field may have to start several
2479 * source lines below the top field. Unfortunately ACCUI
2480 * registers will only hold the fractional part of the offset
2481 * so the integer part must be added to the base address of the
2484 if (!in_height
|| in_height
== out_height
)
2487 field_offset
= in_height
/ out_height
/ 2;
2490 /* Fields are independent but interleaved in memory. */
2499 if (plane
== OMAP_DSS_WB
) {
2500 frame_width
= out_width
;
2501 frame_height
= out_height
;
2503 frame_width
= in_width
;
2504 frame_height
= height
;
2507 if (rotation_type
== OMAP_DSS_ROT_TILER
)
2508 calc_tiler_rotation_offset(screen_width
, frame_width
,
2509 color_mode
, fieldmode
, field_offset
,
2510 &offset0
, &offset1
, &row_inc
, &pix_inc
,
2511 x_predecim
, y_predecim
);
2512 else if (rotation_type
== OMAP_DSS_ROT_DMA
)
2513 calc_dma_rotation_offset(rotation
, mirror
, screen_width
,
2514 frame_width
, frame_height
,
2515 color_mode
, fieldmode
, field_offset
,
2516 &offset0
, &offset1
, &row_inc
, &pix_inc
,
2517 x_predecim
, y_predecim
);
2519 calc_vrfb_rotation_offset(rotation
, mirror
,
2520 screen_width
, frame_width
, frame_height
,
2521 color_mode
, fieldmode
, field_offset
,
2522 &offset0
, &offset1
, &row_inc
, &pix_inc
,
2523 x_predecim
, y_predecim
);
2525 DSSDBG("offset0 %u, offset1 %u, row_inc %d, pix_inc %d\n",
2526 offset0
, offset1
, row_inc
, pix_inc
);
2528 dispc_ovl_set_color_mode(plane
, color_mode
);
2530 dispc_ovl_configure_burst_type(plane
, rotation_type
);
2532 dispc_ovl_set_ba0(plane
, paddr
+ offset0
);
2533 dispc_ovl_set_ba1(plane
, paddr
+ offset1
);
2535 if (OMAP_DSS_COLOR_NV12
== color_mode
) {
2536 dispc_ovl_set_ba0_uv(plane
, p_uv_addr
+ offset0
);
2537 dispc_ovl_set_ba1_uv(plane
, p_uv_addr
+ offset1
);
2540 dispc_ovl_set_row_inc(plane
, row_inc
);
2541 dispc_ovl_set_pix_inc(plane
, pix_inc
);
2543 DSSDBG("%d,%d %dx%d -> %dx%d\n", pos_x
, pos_y
, in_width
,
2544 in_height
, out_width
, out_height
);
2546 dispc_ovl_set_pos(plane
, caps
, pos_x
, pos_y
);
2548 dispc_ovl_set_input_size(plane
, in_width
, in_height
);
2550 if (caps
& OMAP_DSS_OVL_CAP_SCALE
) {
2551 dispc_ovl_set_scaling(plane
, in_width
, in_height
, out_width
,
2552 out_height
, ilace
, five_taps
, fieldmode
,
2553 color_mode
, rotation
);
2554 dispc_ovl_set_output_size(plane
, out_width
, out_height
);
2555 dispc_ovl_set_vid_color_conv(plane
, cconv
);
2558 dispc_ovl_set_rotation_attrs(plane
, rotation
, rotation_type
, mirror
,
2561 dispc_ovl_set_zorder(plane
, caps
, zorder
);
2562 dispc_ovl_set_pre_mult_alpha(plane
, caps
, pre_mult_alpha
);
2563 dispc_ovl_setup_global_alpha(plane
, caps
, global_alpha
);
2565 dispc_ovl_enable_replication(plane
, caps
, replication
);
2570 int dispc_ovl_setup(enum omap_plane plane
, const struct omap_overlay_info
*oi
,
2571 bool replication
, const struct omap_video_timings
*mgr_timings
,
2575 enum omap_overlay_caps caps
= dss_feat_get_overlay_caps(plane
);
2576 enum omap_channel channel
;
2578 channel
= dispc_ovl_get_channel_out(plane
);
2580 DSSDBG("dispc_ovl_setup %d, pa %x, pa_uv %x, sw %d, %d,%d, %dx%d -> "
2581 "%dx%d, cmode %x, rot %d, mir %d, chan %d repl %d\n",
2582 plane
, oi
->paddr
, oi
->p_uv_addr
, oi
->screen_width
, oi
->pos_x
,
2583 oi
->pos_y
, oi
->width
, oi
->height
, oi
->out_width
, oi
->out_height
,
2584 oi
->color_mode
, oi
->rotation
, oi
->mirror
, channel
, replication
);
2586 r
= dispc_ovl_setup_common(plane
, caps
, oi
->paddr
, oi
->p_uv_addr
,
2587 oi
->screen_width
, oi
->pos_x
, oi
->pos_y
, oi
->width
, oi
->height
,
2588 oi
->out_width
, oi
->out_height
, oi
->color_mode
, oi
->rotation
,
2589 oi
->mirror
, oi
->zorder
, oi
->pre_mult_alpha
, oi
->global_alpha
,
2590 oi
->rotation_type
, replication
, mgr_timings
, mem_to_mem
);
2594 EXPORT_SYMBOL(dispc_ovl_setup
);
2596 int dispc_wb_setup(const struct omap_dss_writeback_info
*wi
,
2597 bool mem_to_mem
, const struct omap_video_timings
*mgr_timings
)
2601 enum omap_plane plane
= OMAP_DSS_WB
;
2602 const int pos_x
= 0, pos_y
= 0;
2603 const u8 zorder
= 0, global_alpha
= 0;
2604 const bool replication
= false;
2606 int in_width
= mgr_timings
->x_res
;
2607 int in_height
= mgr_timings
->y_res
;
2608 enum omap_overlay_caps caps
=
2609 OMAP_DSS_OVL_CAP_SCALE
| OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA
;
2611 DSSDBG("dispc_wb_setup, pa %x, pa_uv %x, %d,%d -> %dx%d, cmode %x, "
2612 "rot %d, mir %d\n", wi
->paddr
, wi
->p_uv_addr
, in_width
,
2613 in_height
, wi
->width
, wi
->height
, wi
->color_mode
, wi
->rotation
,
2616 r
= dispc_ovl_setup_common(plane
, caps
, wi
->paddr
, wi
->p_uv_addr
,
2617 wi
->buf_width
, pos_x
, pos_y
, in_width
, in_height
, wi
->width
,
2618 wi
->height
, wi
->color_mode
, wi
->rotation
, wi
->mirror
, zorder
,
2619 wi
->pre_mult_alpha
, global_alpha
, wi
->rotation_type
,
2620 replication
, mgr_timings
, mem_to_mem
);
2622 switch (wi
->color_mode
) {
2623 case OMAP_DSS_COLOR_RGB16
:
2624 case OMAP_DSS_COLOR_RGB24P
:
2625 case OMAP_DSS_COLOR_ARGB16
:
2626 case OMAP_DSS_COLOR_RGBA16
:
2627 case OMAP_DSS_COLOR_RGB12U
:
2628 case OMAP_DSS_COLOR_ARGB16_1555
:
2629 case OMAP_DSS_COLOR_XRGB16_1555
:
2630 case OMAP_DSS_COLOR_RGBX16
:
2638 /* setup extra DISPC_WB_ATTRIBUTES */
2639 l
= dispc_read_reg(DISPC_OVL_ATTRIBUTES(plane
));
2640 l
= FLD_MOD(l
, truncation
, 10, 10); /* TRUNCATIONENABLE */
2641 l
= FLD_MOD(l
, mem_to_mem
, 19, 19); /* WRITEBACKMODE */
2642 dispc_write_reg(DISPC_OVL_ATTRIBUTES(plane
), l
);
2647 int dispc_ovl_enable(enum omap_plane plane
, bool enable
)
2649 DSSDBG("dispc_enable_plane %d, %d\n", plane
, enable
);
2651 REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane
), enable
? 1 : 0, 0, 0);
2655 EXPORT_SYMBOL(dispc_ovl_enable
);
2657 bool dispc_ovl_enabled(enum omap_plane plane
)
2659 return REG_GET(DISPC_OVL_ATTRIBUTES(plane
), 0, 0);
2661 EXPORT_SYMBOL(dispc_ovl_enabled
);
2663 void dispc_mgr_enable(enum omap_channel channel
, bool enable
)
2665 mgr_fld_write(channel
, DISPC_MGR_FLD_ENABLE
, enable
);
2666 /* flush posted write */
2667 mgr_fld_read(channel
, DISPC_MGR_FLD_ENABLE
);
2669 EXPORT_SYMBOL(dispc_mgr_enable
);
2671 bool dispc_mgr_is_enabled(enum omap_channel channel
)
2673 return !!mgr_fld_read(channel
, DISPC_MGR_FLD_ENABLE
);
2675 EXPORT_SYMBOL(dispc_mgr_is_enabled
);
2677 void dispc_wb_enable(bool enable
)
2679 dispc_ovl_enable(OMAP_DSS_WB
, enable
);
2682 bool dispc_wb_is_enabled(void)
2684 return dispc_ovl_enabled(OMAP_DSS_WB
);
2687 static void dispc_lcd_enable_signal_polarity(bool act_high
)
2689 if (!dss_has_feature(FEAT_LCDENABLEPOL
))
2692 REG_FLD_MOD(DISPC_CONTROL
, act_high
? 1 : 0, 29, 29);
2695 void dispc_lcd_enable_signal(bool enable
)
2697 if (!dss_has_feature(FEAT_LCDENABLESIGNAL
))
2700 REG_FLD_MOD(DISPC_CONTROL
, enable
? 1 : 0, 28, 28);
2703 void dispc_pck_free_enable(bool enable
)
2705 if (!dss_has_feature(FEAT_PCKFREEENABLE
))
2708 REG_FLD_MOD(DISPC_CONTROL
, enable
? 1 : 0, 27, 27);
2711 static void dispc_mgr_enable_fifohandcheck(enum omap_channel channel
, bool enable
)
2713 mgr_fld_write(channel
, DISPC_MGR_FLD_FIFOHANDCHECK
, enable
);
2717 static void dispc_mgr_set_lcd_type_tft(enum omap_channel channel
)
2719 mgr_fld_write(channel
, DISPC_MGR_FLD_STNTFT
, 1);
2722 void dispc_set_loadmode(enum omap_dss_load_mode mode
)
2724 REG_FLD_MOD(DISPC_CONFIG
, mode
, 2, 1);
2728 static void dispc_mgr_set_default_color(enum omap_channel channel
, u32 color
)
2730 dispc_write_reg(DISPC_DEFAULT_COLOR(channel
), color
);
2733 static void dispc_mgr_set_trans_key(enum omap_channel ch
,
2734 enum omap_dss_trans_key_type type
,
2737 mgr_fld_write(ch
, DISPC_MGR_FLD_TCKSELECTION
, type
);
2739 dispc_write_reg(DISPC_TRANS_COLOR(ch
), trans_key
);
2742 static void dispc_mgr_enable_trans_key(enum omap_channel ch
, bool enable
)
2744 mgr_fld_write(ch
, DISPC_MGR_FLD_TCKENABLE
, enable
);
2747 static void dispc_mgr_enable_alpha_fixed_zorder(enum omap_channel ch
,
2750 if (!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER
))
2753 if (ch
== OMAP_DSS_CHANNEL_LCD
)
2754 REG_FLD_MOD(DISPC_CONFIG
, enable
, 18, 18);
2755 else if (ch
== OMAP_DSS_CHANNEL_DIGIT
)
2756 REG_FLD_MOD(DISPC_CONFIG
, enable
, 19, 19);
2759 void dispc_mgr_setup(enum omap_channel channel
,
2760 const struct omap_overlay_manager_info
*info
)
2762 dispc_mgr_set_default_color(channel
, info
->default_color
);
2763 dispc_mgr_set_trans_key(channel
, info
->trans_key_type
, info
->trans_key
);
2764 dispc_mgr_enable_trans_key(channel
, info
->trans_enabled
);
2765 dispc_mgr_enable_alpha_fixed_zorder(channel
,
2766 info
->partial_alpha_enabled
);
2767 if (dss_has_feature(FEAT_CPR
)) {
2768 dispc_mgr_enable_cpr(channel
, info
->cpr_enable
);
2769 dispc_mgr_set_cpr_coef(channel
, &info
->cpr_coefs
);
2772 EXPORT_SYMBOL(dispc_mgr_setup
);
2774 static void dispc_mgr_set_tft_data_lines(enum omap_channel channel
, u8 data_lines
)
2778 switch (data_lines
) {
2796 mgr_fld_write(channel
, DISPC_MGR_FLD_TFTDATALINES
, code
);
2799 static void dispc_mgr_set_io_pad_mode(enum dss_io_pad_mode mode
)
2805 case DSS_IO_PAD_MODE_RESET
:
2809 case DSS_IO_PAD_MODE_RFBI
:
2813 case DSS_IO_PAD_MODE_BYPASS
:
2822 l
= dispc_read_reg(DISPC_CONTROL
);
2823 l
= FLD_MOD(l
, gpout0
, 15, 15);
2824 l
= FLD_MOD(l
, gpout1
, 16, 16);
2825 dispc_write_reg(DISPC_CONTROL
, l
);
2828 static void dispc_mgr_enable_stallmode(enum omap_channel channel
, bool enable
)
2830 mgr_fld_write(channel
, DISPC_MGR_FLD_STALLMODE
, enable
);
2833 void dispc_mgr_set_lcd_config(enum omap_channel channel
,
2834 const struct dss_lcd_mgr_config
*config
)
2836 dispc_mgr_set_io_pad_mode(config
->io_pad_mode
);
2838 dispc_mgr_enable_stallmode(channel
, config
->stallmode
);
2839 dispc_mgr_enable_fifohandcheck(channel
, config
->fifohandcheck
);
2841 dispc_mgr_set_clock_div(channel
, &config
->clock_info
);
2843 dispc_mgr_set_tft_data_lines(channel
, config
->video_port_width
);
2845 dispc_lcd_enable_signal_polarity(config
->lcden_sig_polarity
);
2847 dispc_mgr_set_lcd_type_tft(channel
);
2849 EXPORT_SYMBOL(dispc_mgr_set_lcd_config
);
2851 static bool _dispc_mgr_size_ok(u16 width
, u16 height
)
2853 return width
<= dispc
.feat
->mgr_width_max
&&
2854 height
<= dispc
.feat
->mgr_height_max
;
2857 static bool _dispc_lcd_timings_ok(int hsw
, int hfp
, int hbp
,
2858 int vsw
, int vfp
, int vbp
)
2860 if (hsw
< 1 || hsw
> dispc
.feat
->sw_max
||
2861 hfp
< 1 || hfp
> dispc
.feat
->hp_max
||
2862 hbp
< 1 || hbp
> dispc
.feat
->hp_max
||
2863 vsw
< 1 || vsw
> dispc
.feat
->sw_max
||
2864 vfp
< 0 || vfp
> dispc
.feat
->vp_max
||
2865 vbp
< 0 || vbp
> dispc
.feat
->vp_max
)
2870 static bool _dispc_mgr_pclk_ok(enum omap_channel channel
,
2873 if (dss_mgr_is_lcd(channel
))
2874 return pclk
<= dispc
.feat
->max_lcd_pclk
? true : false;
2876 return pclk
<= dispc
.feat
->max_tv_pclk
? true : false;
2879 bool dispc_mgr_timings_ok(enum omap_channel channel
,
2880 const struct omap_video_timings
*timings
)
2884 timings_ok
= _dispc_mgr_size_ok(timings
->x_res
, timings
->y_res
);
2886 timings_ok
&= _dispc_mgr_pclk_ok(channel
, timings
->pixelclock
);
2888 if (dss_mgr_is_lcd(channel
)) {
2889 timings_ok
&= _dispc_lcd_timings_ok(timings
->hsw
, timings
->hfp
,
2890 timings
->hbp
, timings
->vsw
, timings
->vfp
,
2897 static void _dispc_mgr_set_lcd_timings(enum omap_channel channel
, int hsw
,
2898 int hfp
, int hbp
, int vsw
, int vfp
, int vbp
,
2899 enum omap_dss_signal_level vsync_level
,
2900 enum omap_dss_signal_level hsync_level
,
2901 enum omap_dss_signal_edge data_pclk_edge
,
2902 enum omap_dss_signal_level de_level
,
2903 enum omap_dss_signal_edge sync_pclk_edge
)
2906 u32 timing_h
, timing_v
, l
;
2907 bool onoff
, rf
, ipc
;
2909 timing_h
= FLD_VAL(hsw
-1, dispc
.feat
->sw_start
, 0) |
2910 FLD_VAL(hfp
-1, dispc
.feat
->fp_start
, 8) |
2911 FLD_VAL(hbp
-1, dispc
.feat
->bp_start
, 20);
2912 timing_v
= FLD_VAL(vsw
-1, dispc
.feat
->sw_start
, 0) |
2913 FLD_VAL(vfp
, dispc
.feat
->fp_start
, 8) |
2914 FLD_VAL(vbp
, dispc
.feat
->bp_start
, 20);
2916 dispc_write_reg(DISPC_TIMING_H(channel
), timing_h
);
2917 dispc_write_reg(DISPC_TIMING_V(channel
), timing_v
);
2919 switch (data_pclk_edge
) {
2920 case OMAPDSS_DRIVE_SIG_RISING_EDGE
:
2923 case OMAPDSS_DRIVE_SIG_FALLING_EDGE
:
2926 case OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES
:
2931 switch (sync_pclk_edge
) {
2932 case OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES
:
2936 case OMAPDSS_DRIVE_SIG_FALLING_EDGE
:
2940 case OMAPDSS_DRIVE_SIG_RISING_EDGE
:
2948 l
= dispc_read_reg(DISPC_POL_FREQ(channel
));
2949 l
|= FLD_VAL(onoff
, 17, 17);
2950 l
|= FLD_VAL(rf
, 16, 16);
2951 l
|= FLD_VAL(de_level
, 15, 15);
2952 l
|= FLD_VAL(ipc
, 14, 14);
2953 l
|= FLD_VAL(hsync_level
, 13, 13);
2954 l
|= FLD_VAL(vsync_level
, 12, 12);
2955 dispc_write_reg(DISPC_POL_FREQ(channel
), l
);
2958 /* change name to mode? */
2959 void dispc_mgr_set_timings(enum omap_channel channel
,
2960 const struct omap_video_timings
*timings
)
2962 unsigned xtot
, ytot
;
2963 unsigned long ht
, vt
;
2964 struct omap_video_timings t
= *timings
;
2966 DSSDBG("channel %d xres %u yres %u\n", channel
, t
.x_res
, t
.y_res
);
2968 if (!dispc_mgr_timings_ok(channel
, &t
)) {
2973 if (dss_mgr_is_lcd(channel
)) {
2974 _dispc_mgr_set_lcd_timings(channel
, t
.hsw
, t
.hfp
, t
.hbp
, t
.vsw
,
2975 t
.vfp
, t
.vbp
, t
.vsync_level
, t
.hsync_level
,
2976 t
.data_pclk_edge
, t
.de_level
, t
.sync_pclk_edge
);
2978 xtot
= t
.x_res
+ t
.hfp
+ t
.hsw
+ t
.hbp
;
2979 ytot
= t
.y_res
+ t
.vfp
+ t
.vsw
+ t
.vbp
;
2981 ht
= timings
->pixelclock
/ xtot
;
2982 vt
= timings
->pixelclock
/ xtot
/ ytot
;
2984 DSSDBG("pck %u\n", timings
->pixelclock
);
2985 DSSDBG("hsw %d hfp %d hbp %d vsw %d vfp %d vbp %d\n",
2986 t
.hsw
, t
.hfp
, t
.hbp
, t
.vsw
, t
.vfp
, t
.vbp
);
2987 DSSDBG("vsync_level %d hsync_level %d data_pclk_edge %d de_level %d sync_pclk_edge %d\n",
2988 t
.vsync_level
, t
.hsync_level
, t
.data_pclk_edge
,
2989 t
.de_level
, t
.sync_pclk_edge
);
2991 DSSDBG("hsync %luHz, vsync %luHz\n", ht
, vt
);
2993 if (t
.interlace
== true)
2997 dispc_mgr_set_size(channel
, t
.x_res
, t
.y_res
);
2999 EXPORT_SYMBOL(dispc_mgr_set_timings
);
3001 static void dispc_mgr_set_lcd_divisor(enum omap_channel channel
, u16 lck_div
,
3004 BUG_ON(lck_div
< 1);
3005 BUG_ON(pck_div
< 1);
3007 dispc_write_reg(DISPC_DIVISORo(channel
),
3008 FLD_VAL(lck_div
, 23, 16) | FLD_VAL(pck_div
, 7, 0));
3010 if (dss_has_feature(FEAT_CORE_CLK_DIV
) == false &&
3011 channel
== OMAP_DSS_CHANNEL_LCD
)
3012 dispc
.core_clk_rate
= dispc_fclk_rate() / lck_div
;
3015 static void dispc_mgr_get_lcd_divisor(enum omap_channel channel
, int *lck_div
,
3019 l
= dispc_read_reg(DISPC_DIVISORo(channel
));
3020 *lck_div
= FLD_GET(l
, 23, 16);
3021 *pck_div
= FLD_GET(l
, 7, 0);
3024 unsigned long dispc_fclk_rate(void)
3026 struct platform_device
*dsidev
;
3027 unsigned long r
= 0;
3029 switch (dss_get_dispc_clk_source()) {
3030 case OMAP_DSS_CLK_SRC_FCK
:
3031 r
= dss_get_dispc_clk_rate();
3033 case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC
:
3034 dsidev
= dsi_get_dsidev_from_id(0);
3035 r
= dsi_get_pll_hsdiv_dispc_rate(dsidev
);
3037 case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC
:
3038 dsidev
= dsi_get_dsidev_from_id(1);
3039 r
= dsi_get_pll_hsdiv_dispc_rate(dsidev
);
3049 unsigned long dispc_mgr_lclk_rate(enum omap_channel channel
)
3051 struct platform_device
*dsidev
;
3056 if (dss_mgr_is_lcd(channel
)) {
3057 l
= dispc_read_reg(DISPC_DIVISORo(channel
));
3059 lcd
= FLD_GET(l
, 23, 16);
3061 switch (dss_get_lcd_clk_source(channel
)) {
3062 case OMAP_DSS_CLK_SRC_FCK
:
3063 r
= dss_get_dispc_clk_rate();
3065 case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC
:
3066 dsidev
= dsi_get_dsidev_from_id(0);
3067 r
= dsi_get_pll_hsdiv_dispc_rate(dsidev
);
3069 case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC
:
3070 dsidev
= dsi_get_dsidev_from_id(1);
3071 r
= dsi_get_pll_hsdiv_dispc_rate(dsidev
);
3080 return dispc_fclk_rate();
3084 unsigned long dispc_mgr_pclk_rate(enum omap_channel channel
)
3088 if (dss_mgr_is_lcd(channel
)) {
3092 l
= dispc_read_reg(DISPC_DIVISORo(channel
));
3094 pcd
= FLD_GET(l
, 7, 0);
3096 r
= dispc_mgr_lclk_rate(channel
);
3100 return dispc
.tv_pclk_rate
;
3104 void dispc_set_tv_pclk(unsigned long pclk
)
3106 dispc
.tv_pclk_rate
= pclk
;
3109 unsigned long dispc_core_clk_rate(void)
3111 return dispc
.core_clk_rate
;
3114 static unsigned long dispc_plane_pclk_rate(enum omap_plane plane
)
3116 enum omap_channel channel
;
3118 if (plane
== OMAP_DSS_WB
)
3121 channel
= dispc_ovl_get_channel_out(plane
);
3123 return dispc_mgr_pclk_rate(channel
);
3126 static unsigned long dispc_plane_lclk_rate(enum omap_plane plane
)
3128 enum omap_channel channel
;
3130 if (plane
== OMAP_DSS_WB
)
3133 channel
= dispc_ovl_get_channel_out(plane
);
3135 return dispc_mgr_lclk_rate(channel
);
3138 static void dispc_dump_clocks_channel(struct seq_file
*s
, enum omap_channel channel
)
3141 enum omap_dss_clk_source lcd_clk_src
;
3143 seq_printf(s
, "- %s -\n", mgr_desc
[channel
].name
);
3145 lcd_clk_src
= dss_get_lcd_clk_source(channel
);
3147 seq_printf(s
, "%s clk source = %s (%s)\n", mgr_desc
[channel
].name
,
3148 dss_get_generic_clk_source_name(lcd_clk_src
),
3149 dss_feat_get_clk_source_name(lcd_clk_src
));
3151 dispc_mgr_get_lcd_divisor(channel
, &lcd
, &pcd
);
3153 seq_printf(s
, "lck\t\t%-16lulck div\t%u\n",
3154 dispc_mgr_lclk_rate(channel
), lcd
);
3155 seq_printf(s
, "pck\t\t%-16lupck div\t%u\n",
3156 dispc_mgr_pclk_rate(channel
), pcd
);
3159 void dispc_dump_clocks(struct seq_file
*s
)
3163 enum omap_dss_clk_source dispc_clk_src
= dss_get_dispc_clk_source();
3165 if (dispc_runtime_get())
3168 seq_printf(s
, "- DISPC -\n");
3170 seq_printf(s
, "dispc fclk source = %s (%s)\n",
3171 dss_get_generic_clk_source_name(dispc_clk_src
),
3172 dss_feat_get_clk_source_name(dispc_clk_src
));
3174 seq_printf(s
, "fck\t\t%-16lu\n", dispc_fclk_rate());
3176 if (dss_has_feature(FEAT_CORE_CLK_DIV
)) {
3177 seq_printf(s
, "- DISPC-CORE-CLK -\n");
3178 l
= dispc_read_reg(DISPC_DIVISOR
);
3179 lcd
= FLD_GET(l
, 23, 16);
3181 seq_printf(s
, "lck\t\t%-16lulck div\t%u\n",
3182 (dispc_fclk_rate()/lcd
), lcd
);
3185 dispc_dump_clocks_channel(s
, OMAP_DSS_CHANNEL_LCD
);
3187 if (dss_has_feature(FEAT_MGR_LCD2
))
3188 dispc_dump_clocks_channel(s
, OMAP_DSS_CHANNEL_LCD2
);
3189 if (dss_has_feature(FEAT_MGR_LCD3
))
3190 dispc_dump_clocks_channel(s
, OMAP_DSS_CHANNEL_LCD3
);
3192 dispc_runtime_put();
3195 static void dispc_dump_regs(struct seq_file
*s
)
3198 const char *mgr_names
[] = {
3199 [OMAP_DSS_CHANNEL_LCD
] = "LCD",
3200 [OMAP_DSS_CHANNEL_DIGIT
] = "TV",
3201 [OMAP_DSS_CHANNEL_LCD2
] = "LCD2",
3202 [OMAP_DSS_CHANNEL_LCD3
] = "LCD3",
3204 const char *ovl_names
[] = {
3205 [OMAP_DSS_GFX
] = "GFX",
3206 [OMAP_DSS_VIDEO1
] = "VID1",
3207 [OMAP_DSS_VIDEO2
] = "VID2",
3208 [OMAP_DSS_VIDEO3
] = "VID3",
3210 const char **p_names
;
3212 #define DUMPREG(r) seq_printf(s, "%-50s %08x\n", #r, dispc_read_reg(r))
3214 if (dispc_runtime_get())
3217 /* DISPC common registers */
3218 DUMPREG(DISPC_REVISION
);
3219 DUMPREG(DISPC_SYSCONFIG
);
3220 DUMPREG(DISPC_SYSSTATUS
);
3221 DUMPREG(DISPC_IRQSTATUS
);
3222 DUMPREG(DISPC_IRQENABLE
);
3223 DUMPREG(DISPC_CONTROL
);
3224 DUMPREG(DISPC_CONFIG
);
3225 DUMPREG(DISPC_CAPABLE
);
3226 DUMPREG(DISPC_LINE_STATUS
);
3227 DUMPREG(DISPC_LINE_NUMBER
);
3228 if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER
) ||
3229 dss_has_feature(FEAT_ALPHA_FREE_ZORDER
))
3230 DUMPREG(DISPC_GLOBAL_ALPHA
);
3231 if (dss_has_feature(FEAT_MGR_LCD2
)) {
3232 DUMPREG(DISPC_CONTROL2
);
3233 DUMPREG(DISPC_CONFIG2
);
3235 if (dss_has_feature(FEAT_MGR_LCD3
)) {
3236 DUMPREG(DISPC_CONTROL3
);
3237 DUMPREG(DISPC_CONFIG3
);
3239 if (dss_has_feature(FEAT_MFLAG
))
3240 DUMPREG(DISPC_GLOBAL_MFLAG_ATTRIBUTE
);
3244 #define DISPC_REG(i, name) name(i)
3245 #define DUMPREG(i, r) seq_printf(s, "%s(%s)%*s %08x\n", #r, p_names[i], \
3246 (int)(48 - strlen(#r) - strlen(p_names[i])), " ", \
3247 dispc_read_reg(DISPC_REG(i, r)))
3249 p_names
= mgr_names
;
3251 /* DISPC channel specific registers */
3252 for (i
= 0; i
< dss_feat_get_num_mgrs(); i
++) {
3253 DUMPREG(i
, DISPC_DEFAULT_COLOR
);
3254 DUMPREG(i
, DISPC_TRANS_COLOR
);
3255 DUMPREG(i
, DISPC_SIZE_MGR
);
3257 if (i
== OMAP_DSS_CHANNEL_DIGIT
)
3260 DUMPREG(i
, DISPC_DEFAULT_COLOR
);
3261 DUMPREG(i
, DISPC_TRANS_COLOR
);
3262 DUMPREG(i
, DISPC_TIMING_H
);
3263 DUMPREG(i
, DISPC_TIMING_V
);
3264 DUMPREG(i
, DISPC_POL_FREQ
);
3265 DUMPREG(i
, DISPC_DIVISORo
);
3266 DUMPREG(i
, DISPC_SIZE_MGR
);
3268 DUMPREG(i
, DISPC_DATA_CYCLE1
);
3269 DUMPREG(i
, DISPC_DATA_CYCLE2
);
3270 DUMPREG(i
, DISPC_DATA_CYCLE3
);
3272 if (dss_has_feature(FEAT_CPR
)) {
3273 DUMPREG(i
, DISPC_CPR_COEF_R
);
3274 DUMPREG(i
, DISPC_CPR_COEF_G
);
3275 DUMPREG(i
, DISPC_CPR_COEF_B
);
3279 p_names
= ovl_names
;
3281 for (i
= 0; i
< dss_feat_get_num_ovls(); i
++) {
3282 DUMPREG(i
, DISPC_OVL_BA0
);
3283 DUMPREG(i
, DISPC_OVL_BA1
);
3284 DUMPREG(i
, DISPC_OVL_POSITION
);
3285 DUMPREG(i
, DISPC_OVL_SIZE
);
3286 DUMPREG(i
, DISPC_OVL_ATTRIBUTES
);
3287 DUMPREG(i
, DISPC_OVL_FIFO_THRESHOLD
);
3288 DUMPREG(i
, DISPC_OVL_FIFO_SIZE_STATUS
);
3289 DUMPREG(i
, DISPC_OVL_ROW_INC
);
3290 DUMPREG(i
, DISPC_OVL_PIXEL_INC
);
3291 if (dss_has_feature(FEAT_PRELOAD
))
3292 DUMPREG(i
, DISPC_OVL_PRELOAD
);
3294 if (i
== OMAP_DSS_GFX
) {
3295 DUMPREG(i
, DISPC_OVL_WINDOW_SKIP
);
3296 DUMPREG(i
, DISPC_OVL_TABLE_BA
);
3300 DUMPREG(i
, DISPC_OVL_FIR
);
3301 DUMPREG(i
, DISPC_OVL_PICTURE_SIZE
);
3302 DUMPREG(i
, DISPC_OVL_ACCU0
);
3303 DUMPREG(i
, DISPC_OVL_ACCU1
);
3304 if (dss_has_feature(FEAT_HANDLE_UV_SEPARATE
)) {
3305 DUMPREG(i
, DISPC_OVL_BA0_UV
);
3306 DUMPREG(i
, DISPC_OVL_BA1_UV
);
3307 DUMPREG(i
, DISPC_OVL_FIR2
);
3308 DUMPREG(i
, DISPC_OVL_ACCU2_0
);
3309 DUMPREG(i
, DISPC_OVL_ACCU2_1
);
3311 if (dss_has_feature(FEAT_ATTR2
))
3312 DUMPREG(i
, DISPC_OVL_ATTRIBUTES2
);
3313 if (dss_has_feature(FEAT_PRELOAD
))
3314 DUMPREG(i
, DISPC_OVL_PRELOAD
);
3315 if (dss_has_feature(FEAT_MFLAG
))
3316 DUMPREG(i
, DISPC_OVL_MFLAG_THRESHOLD
);
3322 #define DISPC_REG(plane, name, i) name(plane, i)
3323 #define DUMPREG(plane, name, i) \
3324 seq_printf(s, "%s_%d(%s)%*s %08x\n", #name, i, p_names[plane], \
3325 (int)(46 - strlen(#name) - strlen(p_names[plane])), " ", \
3326 dispc_read_reg(DISPC_REG(plane, name, i)))
3328 /* Video pipeline coefficient registers */
3330 /* start from OMAP_DSS_VIDEO1 */
3331 for (i
= 1; i
< dss_feat_get_num_ovls(); i
++) {
3332 for (j
= 0; j
< 8; j
++)
3333 DUMPREG(i
, DISPC_OVL_FIR_COEF_H
, j
);
3335 for (j
= 0; j
< 8; j
++)
3336 DUMPREG(i
, DISPC_OVL_FIR_COEF_HV
, j
);
3338 for (j
= 0; j
< 5; j
++)
3339 DUMPREG(i
, DISPC_OVL_CONV_COEF
, j
);
3341 if (dss_has_feature(FEAT_FIR_COEF_V
)) {
3342 for (j
= 0; j
< 8; j
++)
3343 DUMPREG(i
, DISPC_OVL_FIR_COEF_V
, j
);
3346 if (dss_has_feature(FEAT_HANDLE_UV_SEPARATE
)) {
3347 for (j
= 0; j
< 8; j
++)
3348 DUMPREG(i
, DISPC_OVL_FIR_COEF_H2
, j
);
3350 for (j
= 0; j
< 8; j
++)
3351 DUMPREG(i
, DISPC_OVL_FIR_COEF_HV2
, j
);
3353 for (j
= 0; j
< 8; j
++)
3354 DUMPREG(i
, DISPC_OVL_FIR_COEF_V2
, j
);
3358 dispc_runtime_put();
3364 /* calculate clock rates using dividers in cinfo */
3365 int dispc_calc_clock_rates(unsigned long dispc_fclk_rate
,
3366 struct dispc_clock_info
*cinfo
)
3368 if (cinfo
->lck_div
> 255 || cinfo
->lck_div
== 0)
3370 if (cinfo
->pck_div
< 1 || cinfo
->pck_div
> 255)
3373 cinfo
->lck
= dispc_fclk_rate
/ cinfo
->lck_div
;
3374 cinfo
->pck
= cinfo
->lck
/ cinfo
->pck_div
;
3379 bool dispc_div_calc(unsigned long dispc
,
3380 unsigned long pck_min
, unsigned long pck_max
,
3381 dispc_div_calc_func func
, void *data
)
3383 int lckd
, lckd_start
, lckd_stop
;
3384 int pckd
, pckd_start
, pckd_stop
;
3385 unsigned long pck
, lck
;
3386 unsigned long lck_max
;
3387 unsigned long pckd_hw_min
, pckd_hw_max
;
3388 unsigned min_fck_per_pck
;
3391 #ifdef CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK
3392 min_fck_per_pck
= CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK
;
3394 min_fck_per_pck
= 0;
3397 pckd_hw_min
= dss_feat_get_param_min(FEAT_PARAM_DSS_PCD
);
3398 pckd_hw_max
= dss_feat_get_param_max(FEAT_PARAM_DSS_PCD
);
3400 lck_max
= dss_feat_get_param_max(FEAT_PARAM_DSS_FCK
);
3402 pck_min
= pck_min
? pck_min
: 1;
3403 pck_max
= pck_max
? pck_max
: ULONG_MAX
;
3405 lckd_start
= max(DIV_ROUND_UP(dispc
, lck_max
), 1ul);
3406 lckd_stop
= min(dispc
/ pck_min
, 255ul);
3408 for (lckd
= lckd_start
; lckd
<= lckd_stop
; ++lckd
) {
3411 pckd_start
= max(DIV_ROUND_UP(lck
, pck_max
), pckd_hw_min
);
3412 pckd_stop
= min(lck
/ pck_min
, pckd_hw_max
);
3414 for (pckd
= pckd_start
; pckd
<= pckd_stop
; ++pckd
) {
3418 * For OMAP2/3 the DISPC fclk is the same as LCD's logic
3419 * clock, which means we're configuring DISPC fclk here
3420 * also. Thus we need to use the calculated lck. For
3421 * OMAP4+ the DISPC fclk is a separate clock.
3423 if (dss_has_feature(FEAT_CORE_CLK_DIV
))
3424 fck
= dispc_core_clk_rate();
3428 if (fck
< pck
* min_fck_per_pck
)
3431 if (func(lckd
, pckd
, lck
, pck
, data
))
3439 void dispc_mgr_set_clock_div(enum omap_channel channel
,
3440 const struct dispc_clock_info
*cinfo
)
3442 DSSDBG("lck = %lu (%u)\n", cinfo
->lck
, cinfo
->lck_div
);
3443 DSSDBG("pck = %lu (%u)\n", cinfo
->pck
, cinfo
->pck_div
);
3445 dispc_mgr_set_lcd_divisor(channel
, cinfo
->lck_div
, cinfo
->pck_div
);
3448 int dispc_mgr_get_clock_div(enum omap_channel channel
,
3449 struct dispc_clock_info
*cinfo
)
3453 fck
= dispc_fclk_rate();
3455 cinfo
->lck_div
= REG_GET(DISPC_DIVISORo(channel
), 23, 16);
3456 cinfo
->pck_div
= REG_GET(DISPC_DIVISORo(channel
), 7, 0);
3458 cinfo
->lck
= fck
/ cinfo
->lck_div
;
3459 cinfo
->pck
= cinfo
->lck
/ cinfo
->pck_div
;
3464 u32
dispc_read_irqstatus(void)
3466 return dispc_read_reg(DISPC_IRQSTATUS
);
3468 EXPORT_SYMBOL(dispc_read_irqstatus
);
3470 void dispc_clear_irqstatus(u32 mask
)
3472 dispc_write_reg(DISPC_IRQSTATUS
, mask
);
3474 EXPORT_SYMBOL(dispc_clear_irqstatus
);
3476 u32
dispc_read_irqenable(void)
3478 return dispc_read_reg(DISPC_IRQENABLE
);
3480 EXPORT_SYMBOL(dispc_read_irqenable
);
3482 void dispc_write_irqenable(u32 mask
)
3484 u32 old_mask
= dispc_read_reg(DISPC_IRQENABLE
);
3486 /* clear the irqstatus for newly enabled irqs */
3487 dispc_clear_irqstatus((mask
^ old_mask
) & mask
);
3489 dispc_write_reg(DISPC_IRQENABLE
, mask
);
3491 EXPORT_SYMBOL(dispc_write_irqenable
);
3493 void dispc_enable_sidle(void)
3495 REG_FLD_MOD(DISPC_SYSCONFIG
, 2, 4, 3); /* SIDLEMODE: smart idle */
3498 void dispc_disable_sidle(void)
3500 REG_FLD_MOD(DISPC_SYSCONFIG
, 1, 4, 3); /* SIDLEMODE: no idle */
3503 static void _omap_dispc_initial_config(void)
3507 /* Exclusively enable DISPC_CORE_CLK and set divider to 1 */
3508 if (dss_has_feature(FEAT_CORE_CLK_DIV
)) {
3509 l
= dispc_read_reg(DISPC_DIVISOR
);
3510 /* Use DISPC_DIVISOR.LCD, instead of DISPC_DIVISOR1.LCD */
3511 l
= FLD_MOD(l
, 1, 0, 0);
3512 l
= FLD_MOD(l
, 1, 23, 16);
3513 dispc_write_reg(DISPC_DIVISOR
, l
);
3515 dispc
.core_clk_rate
= dispc_fclk_rate();
3519 if (dss_has_feature(FEAT_FUNCGATED
))
3520 REG_FLD_MOD(DISPC_CONFIG
, 1, 9, 9);
3522 dispc_setup_color_conv_coef();
3524 dispc_set_loadmode(OMAP_DSS_LOAD_FRAME_ONLY
);
3528 dispc_configure_burst_sizes();
3530 dispc_ovl_enable_zorder_planes();
3532 if (dispc
.feat
->mstandby_workaround
)
3533 REG_FLD_MOD(DISPC_MSTANDBY_CTRL
, 1, 0, 0);
3536 static const struct dispc_features omap24xx_dispc_feats __initconst
= {
3543 .mgr_width_start
= 10,
3544 .mgr_height_start
= 26,
3545 .mgr_width_max
= 2048,
3546 .mgr_height_max
= 2048,
3547 .max_lcd_pclk
= 66500000,
3548 .calc_scaling
= dispc_ovl_calc_scaling_24xx
,
3549 .calc_core_clk
= calc_core_clk_24xx
,
3551 .no_framedone_tv
= true,
3552 .set_max_preload
= false,
3555 static const struct dispc_features omap34xx_rev1_0_dispc_feats __initconst
= {
3562 .mgr_width_start
= 10,
3563 .mgr_height_start
= 26,
3564 .mgr_width_max
= 2048,
3565 .mgr_height_max
= 2048,
3566 .max_lcd_pclk
= 173000000,
3567 .max_tv_pclk
= 59000000,
3568 .calc_scaling
= dispc_ovl_calc_scaling_34xx
,
3569 .calc_core_clk
= calc_core_clk_34xx
,
3571 .no_framedone_tv
= true,
3572 .set_max_preload
= false,
3575 static const struct dispc_features omap34xx_rev3_0_dispc_feats __initconst
= {
3582 .mgr_width_start
= 10,
3583 .mgr_height_start
= 26,
3584 .mgr_width_max
= 2048,
3585 .mgr_height_max
= 2048,
3586 .max_lcd_pclk
= 173000000,
3587 .max_tv_pclk
= 59000000,
3588 .calc_scaling
= dispc_ovl_calc_scaling_34xx
,
3589 .calc_core_clk
= calc_core_clk_34xx
,
3591 .no_framedone_tv
= true,
3592 .set_max_preload
= false,
3595 static const struct dispc_features omap44xx_dispc_feats __initconst
= {
3602 .mgr_width_start
= 10,
3603 .mgr_height_start
= 26,
3604 .mgr_width_max
= 2048,
3605 .mgr_height_max
= 2048,
3606 .max_lcd_pclk
= 170000000,
3607 .max_tv_pclk
= 185625000,
3608 .calc_scaling
= dispc_ovl_calc_scaling_44xx
,
3609 .calc_core_clk
= calc_core_clk_44xx
,
3611 .gfx_fifo_workaround
= true,
3612 .set_max_preload
= true,
3615 static const struct dispc_features omap54xx_dispc_feats __initconst
= {
3622 .mgr_width_start
= 11,
3623 .mgr_height_start
= 27,
3624 .mgr_width_max
= 4096,
3625 .mgr_height_max
= 4096,
3626 .max_lcd_pclk
= 170000000,
3627 .max_tv_pclk
= 186000000,
3628 .calc_scaling
= dispc_ovl_calc_scaling_44xx
,
3629 .calc_core_clk
= calc_core_clk_44xx
,
3631 .gfx_fifo_workaround
= true,
3632 .mstandby_workaround
= true,
3633 .set_max_preload
= true,
3636 static int __init
dispc_init_features(struct platform_device
*pdev
)
3638 const struct dispc_features
*src
;
3639 struct dispc_features
*dst
;
3641 dst
= devm_kzalloc(&pdev
->dev
, sizeof(*dst
), GFP_KERNEL
);
3643 dev_err(&pdev
->dev
, "Failed to allocate DISPC Features\n");
3647 switch (omapdss_get_version()) {
3648 case OMAPDSS_VER_OMAP24xx
:
3649 src
= &omap24xx_dispc_feats
;
3652 case OMAPDSS_VER_OMAP34xx_ES1
:
3653 src
= &omap34xx_rev1_0_dispc_feats
;
3656 case OMAPDSS_VER_OMAP34xx_ES3
:
3657 case OMAPDSS_VER_OMAP3630
:
3658 case OMAPDSS_VER_AM35xx
:
3659 src
= &omap34xx_rev3_0_dispc_feats
;
3662 case OMAPDSS_VER_OMAP4430_ES1
:
3663 case OMAPDSS_VER_OMAP4430_ES2
:
3664 case OMAPDSS_VER_OMAP4
:
3665 src
= &omap44xx_dispc_feats
;
3668 case OMAPDSS_VER_OMAP5
:
3669 src
= &omap54xx_dispc_feats
;
3676 memcpy(dst
, src
, sizeof(*dst
));
3682 static irqreturn_t
dispc_irq_handler(int irq
, void *arg
)
3684 if (!dispc
.is_enabled
)
3687 return dispc
.user_handler(irq
, dispc
.user_data
);
3690 int dispc_request_irq(irq_handler_t handler
, void *dev_id
)
3694 if (dispc
.user_handler
!= NULL
)
3697 dispc
.user_handler
= handler
;
3698 dispc
.user_data
= dev_id
;
3700 /* ensure the dispc_irq_handler sees the values above */
3703 r
= devm_request_irq(&dispc
.pdev
->dev
, dispc
.irq
, dispc_irq_handler
,
3704 IRQF_SHARED
, "OMAP DISPC", &dispc
);
3706 dispc
.user_handler
= NULL
;
3707 dispc
.user_data
= NULL
;
3712 EXPORT_SYMBOL(dispc_request_irq
);
3714 void dispc_free_irq(void *dev_id
)
3716 devm_free_irq(&dispc
.pdev
->dev
, dispc
.irq
, &dispc
);
3718 dispc
.user_handler
= NULL
;
3719 dispc
.user_data
= NULL
;
3721 EXPORT_SYMBOL(dispc_free_irq
);
3723 /* DISPC HW IP initialisation */
3724 static int __init
omap_dispchw_probe(struct platform_device
*pdev
)
3728 struct resource
*dispc_mem
;
3732 r
= dispc_init_features(dispc
.pdev
);
3736 dispc_mem
= platform_get_resource(dispc
.pdev
, IORESOURCE_MEM
, 0);
3738 DSSERR("can't get IORESOURCE_MEM DISPC\n");
3742 dispc
.base
= devm_ioremap(&pdev
->dev
, dispc_mem
->start
,
3743 resource_size(dispc_mem
));
3745 DSSERR("can't ioremap DISPC\n");
3749 dispc
.irq
= platform_get_irq(dispc
.pdev
, 0);
3750 if (dispc
.irq
< 0) {
3751 DSSERR("platform_get_irq failed\n");
3755 pm_runtime_enable(&pdev
->dev
);
3757 r
= dispc_runtime_get();
3759 goto err_runtime_get
;
3761 _omap_dispc_initial_config();
3763 rev
= dispc_read_reg(DISPC_REVISION
);
3764 dev_dbg(&pdev
->dev
, "OMAP DISPC rev %d.%d\n",
3765 FLD_GET(rev
, 7, 4), FLD_GET(rev
, 3, 0));
3767 dispc_runtime_put();
3769 dss_init_overlay_managers();
3771 dss_debugfs_create_file("dispc", dispc_dump_regs
);
3776 pm_runtime_disable(&pdev
->dev
);
3780 static int __exit
omap_dispchw_remove(struct platform_device
*pdev
)
3782 pm_runtime_disable(&pdev
->dev
);
3784 dss_uninit_overlay_managers();
3789 static int dispc_runtime_suspend(struct device
*dev
)
3791 dispc
.is_enabled
= false;
3792 /* ensure the dispc_irq_handler sees the is_enabled value */
3794 /* wait for current handler to finish before turning the DISPC off */
3795 synchronize_irq(dispc
.irq
);
3797 dispc_save_context();
3802 static int dispc_runtime_resume(struct device
*dev
)
3805 * The reset value for load mode is 0 (OMAP_DSS_LOAD_CLUT_AND_FRAME)
3806 * but we always initialize it to 2 (OMAP_DSS_LOAD_FRAME_ONLY) in
3807 * _omap_dispc_initial_config(). We can thus use it to detect if
3808 * we have lost register context.
3810 if (REG_GET(DISPC_CONFIG
, 2, 1) != OMAP_DSS_LOAD_FRAME_ONLY
) {
3811 _omap_dispc_initial_config();
3813 dispc_restore_context();
3816 dispc
.is_enabled
= true;
3817 /* ensure the dispc_irq_handler sees the is_enabled value */
3823 static const struct dev_pm_ops dispc_pm_ops
= {
3824 .runtime_suspend
= dispc_runtime_suspend
,
3825 .runtime_resume
= dispc_runtime_resume
,
3828 static const struct of_device_id dispc_of_match
[] = {
3829 { .compatible
= "ti,omap2-dispc", },
3830 { .compatible
= "ti,omap3-dispc", },
3831 { .compatible
= "ti,omap4-dispc", },
3835 static struct platform_driver omap_dispchw_driver
= {
3836 .remove
= __exit_p(omap_dispchw_remove
),
3838 .name
= "omapdss_dispc",
3839 .owner
= THIS_MODULE
,
3840 .pm
= &dispc_pm_ops
,
3841 .of_match_table
= dispc_of_match
,
3845 int __init
dispc_init_platform_driver(void)
3847 return platform_driver_probe(&omap_dispchw_driver
, omap_dispchw_probe
);
3850 void __exit
dispc_uninit_platform_driver(void)
3852 platform_driver_unregister(&omap_dispchw_driver
);