2 * Epson Blizzard LCD controller driver
4 * Copyright (C) 2004-2005 Nokia Corporation
5 * Authors: Juha Yrjola <juha.yrjola@nokia.com>
6 * Imre Deak <imre.deak@nokia.com>
7 * YUV support: Jussi Laako <jussi.laako@nokia.com>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write to the Free Software Foundation, Inc.,
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 #include <linux/module.h>
26 #include <linux/delay.h>
27 #include <linux/clk.h>
30 #include <mach/omapfb.h>
31 #include <mach/blizzard.h>
35 #define MODULE_NAME "blizzard"
37 #define BLIZZARD_REV_CODE 0x00
38 #define BLIZZARD_CONFIG 0x02
39 #define BLIZZARD_PLL_DIV 0x04
40 #define BLIZZARD_PLL_LOCK_RANGE 0x06
41 #define BLIZZARD_PLL_CLOCK_SYNTH_0 0x08
42 #define BLIZZARD_PLL_CLOCK_SYNTH_1 0x0a
43 #define BLIZZARD_PLL_MODE 0x0c
44 #define BLIZZARD_CLK_SRC 0x0e
45 #define BLIZZARD_MEM_BANK0_ACTIVATE 0x10
46 #define BLIZZARD_MEM_BANK0_STATUS 0x14
47 #define BLIZZARD_PANEL_CONFIGURATION 0x28
48 #define BLIZZARD_HDISP 0x2a
49 #define BLIZZARD_HNDP 0x2c
50 #define BLIZZARD_VDISP0 0x2e
51 #define BLIZZARD_VDISP1 0x30
52 #define BLIZZARD_VNDP 0x32
53 #define BLIZZARD_HSW 0x34
54 #define BLIZZARD_VSW 0x38
55 #define BLIZZARD_DISPLAY_MODE 0x68
56 #define BLIZZARD_INPUT_WIN_X_START_0 0x6c
57 #define BLIZZARD_DATA_SOURCE_SELECT 0x8e
58 #define BLIZZARD_DISP_MEM_DATA_PORT 0x90
59 #define BLIZZARD_DISP_MEM_READ_ADDR0 0x92
60 #define BLIZZARD_POWER_SAVE 0xE6
61 #define BLIZZARD_NDISP_CTRL_STATUS 0xE8
63 /* Data source select */
65 #define BLIZZARD_SRC_WRITE_LCD_BACKGROUND 0x00
66 #define BLIZZARD_SRC_WRITE_LCD_DESTRUCTIVE 0x01
67 #define BLIZZARD_SRC_WRITE_OVERLAY_ENABLE 0x04
68 #define BLIZZARD_SRC_DISABLE_OVERLAY 0x05
70 #define BLIZZARD_SRC_WRITE_LCD 0x00
71 #define BLIZZARD_SRC_BLT_LCD 0x06
73 #define BLIZZARD_COLOR_RGB565 0x01
74 #define BLIZZARD_COLOR_YUV420 0x09
76 #define BLIZZARD_VERSION_S1D13745 0x01 /* Hailstorm */
77 #define BLIZZARD_VERSION_S1D13744 0x02 /* Blizzard */
79 #define BLIZZARD_AUTO_UPDATE_TIME (HZ / 20)
81 /* Reserve 4 request slots for requests in irq context */
82 #define REQ_POOL_SIZE 24
83 #define IRQ_REQ_POOL_SIZE 4
85 #define REQ_FROM_IRQ_POOL 0x01
87 #define REQ_COMPLETE 0
90 struct blizzard_reg_list {
95 /* These need to be saved / restored separately from the rest. */
96 static struct blizzard_reg_list blizzard_pll_regs[] = {
98 .start = 0x04, /* Don't save PLL ctrl (0x0C) */
102 .start = 0x0e, /* Clock configuration */
107 static struct blizzard_reg_list blizzard_gen_regs[] = {
109 .start = 0x18, /* SDRAM control */
113 .start = 0x28, /* LCD Panel configuration */
114 .end = 0x5a, /* HSSI interface, TV configuration */
118 static u8 blizzard_reg_cache[0x5a / 2];
120 struct update_param {
122 int x, y, width, height;
124 int out_width, out_height;
130 struct blizzard_request {
131 struct list_head entry;
134 int (*handler)(struct blizzard_request *req);
135 void (*complete)(void *data);
139 struct update_param update;
140 struct completion *sync;
145 unsigned long offset;
148 int out_width, out_height;
154 struct blizzard_struct {
155 enum omapfb_update_mode update_mode;
156 enum omapfb_update_mode update_mode_before_suspend;
158 struct timer_list auto_update_timer;
159 int stop_auto_update;
160 struct omapfb_update_window auto_update_window;
162 int vid_nonstd_color;
172 unsigned te_connected:1;
173 unsigned vsync_only:1;
175 struct plane_info plane[OMAPFB_PLANE_NUM];
177 struct blizzard_request req_pool[REQ_POOL_SIZE];
178 struct list_head pending_req_list;
179 struct list_head free_req_list;
180 struct semaphore req_sema;
183 unsigned long sys_ck_rate;
184 struct extif_timings reg_timings, lut_timings;
186 u32 max_transmit_size;
187 u32 extif_clk_period;
189 unsigned long pix_tx_time;
190 unsigned long line_upd_time;
192 struct omapfb_device *fbdev;
193 struct lcd_ctrl_extif *extif;
194 struct lcd_ctrl *int_ctrl;
196 void (*power_up)(struct device *dev);
197 void (*power_down)(struct device *dev);
202 struct lcd_ctrl blizzard_ctrl;
204 static u8 blizzard_read_reg(u8 reg)
208 blizzard.extif->set_bits_per_cycle(8);
209 blizzard.extif->write_command(®, 1);
210 blizzard.extif->read_data(&data, 1);
215 static void blizzard_write_reg(u8 reg, u8 val)
217 blizzard.extif->set_bits_per_cycle(8);
218 blizzard.extif->write_command(®, 1);
219 blizzard.extif->write_data(&val, 1);
222 static void blizzard_restart_sdram(void)
226 blizzard_write_reg(BLIZZARD_MEM_BANK0_ACTIVATE, 0);
228 blizzard_write_reg(BLIZZARD_MEM_BANK0_ACTIVATE, 1);
229 tmo = jiffies + msecs_to_jiffies(200);
230 while (!(blizzard_read_reg(BLIZZARD_MEM_BANK0_STATUS) & 0x01)) {
231 if (time_after(jiffies, tmo)) {
232 dev_err(blizzard.fbdev->dev,
233 "s1d1374x: SDRAM not ready\n");
240 static void blizzard_stop_sdram(void)
242 blizzard_write_reg(BLIZZARD_MEM_BANK0_ACTIVATE, 0);
245 /* Wait until the last window was completely written into the controllers
246 * SDRAM and we can start transferring the next window.
248 static void blizzard_wait_line_buffer(void)
250 unsigned long tmo = jiffies + msecs_to_jiffies(30);
252 while (blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS) & (1 << 7)) {
253 if (time_after(jiffies, tmo)) {
254 if (printk_ratelimit())
255 dev_err(blizzard.fbdev->dev,
256 "s1d1374x: line buffer not ready\n");
262 /* Wait until the YYC color space converter is idle. */
263 static void blizzard_wait_yyc(void)
265 unsigned long tmo = jiffies + msecs_to_jiffies(30);
267 while (blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS) & (1 << 4)) {
268 if (time_after(jiffies, tmo)) {
269 if (printk_ratelimit())
270 dev_err(blizzard.fbdev->dev,
271 "s1d1374x: YYC not ready\n");
277 static void disable_overlay(void)
279 blizzard_write_reg(BLIZZARD_DATA_SOURCE_SELECT,
280 BLIZZARD_SRC_DISABLE_OVERLAY);
283 static void set_window_regs(int x_start, int y_start, int x_end, int y_end,
284 int x_out_start, int y_out_start,
285 int x_out_end, int y_out_end, int color_mode,
286 int zoom_off, int flags)
294 tmp[1] = x_start >> 8;
296 tmp[3] = y_start >> 8;
304 tmp[8] = x_out_start;
305 tmp[9] = x_out_start >> 8;
306 tmp[10] = y_out_start;
307 tmp[11] = y_out_start >> 8;
309 tmp[13] = x_out_end >> 8;
311 tmp[15] = y_out_end >> 8;
313 tmp[16] = color_mode;
314 if (zoom_off && blizzard.version == BLIZZARD_VERSION_S1D13745)
315 tmp[17] = BLIZZARD_SRC_WRITE_LCD_BACKGROUND;
316 else if (flags & OMAPFB_FORMAT_FLAG_ENABLE_OVERLAY)
317 tmp[17] = BLIZZARD_SRC_WRITE_OVERLAY_ENABLE;
319 tmp[17] = blizzard.version == BLIZZARD_VERSION_S1D13744 ?
320 BLIZZARD_SRC_WRITE_LCD :
321 BLIZZARD_SRC_WRITE_LCD_DESTRUCTIVE;
323 blizzard.extif->set_bits_per_cycle(8);
324 cmd = BLIZZARD_INPUT_WIN_X_START_0;
325 blizzard.extif->write_command(&cmd, 1);
326 blizzard.extif->write_data(tmp, 18);
329 static void enable_tearsync(int y, int width, int height, int screen_height,
330 int out_height, int force_vsync)
334 b = blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS);
336 blizzard_write_reg(BLIZZARD_NDISP_CTRL_STATUS, b);
338 if (likely(blizzard.vsync_only || force_vsync)) {
339 blizzard.extif->enable_tearsync(1, 0);
343 if (width * blizzard.pix_tx_time < blizzard.line_upd_time) {
344 blizzard.extif->enable_tearsync(1, 0);
348 if ((width * blizzard.pix_tx_time / 1000) * height <
349 (y + out_height) * (blizzard.line_upd_time / 1000)) {
350 blizzard.extif->enable_tearsync(1, 0);
354 blizzard.extif->enable_tearsync(1, y + 1);
357 static void disable_tearsync(void)
361 blizzard.extif->enable_tearsync(0, 0);
362 b = blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS);
364 blizzard_write_reg(BLIZZARD_NDISP_CTRL_STATUS, b);
365 b = blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS);
368 static inline void set_extif_timings(const struct extif_timings *t);
370 static inline struct blizzard_request *alloc_req(void)
373 struct blizzard_request *req;
377 down(&blizzard.req_sema);
379 req_flags = REQ_FROM_IRQ_POOL;
381 spin_lock_irqsave(&blizzard.req_lock, flags);
382 BUG_ON(list_empty(&blizzard.free_req_list));
383 req = list_entry(blizzard.free_req_list.next,
384 struct blizzard_request, entry);
385 list_del(&req->entry);
386 spin_unlock_irqrestore(&blizzard.req_lock, flags);
388 INIT_LIST_HEAD(&req->entry);
389 req->flags = req_flags;
394 static inline void free_req(struct blizzard_request *req)
398 spin_lock_irqsave(&blizzard.req_lock, flags);
400 list_del(&req->entry);
401 list_add(&req->entry, &blizzard.free_req_list);
402 if (!(req->flags & REQ_FROM_IRQ_POOL))
403 up(&blizzard.req_sema);
405 spin_unlock_irqrestore(&blizzard.req_lock, flags);
408 static void process_pending_requests(void)
412 spin_lock_irqsave(&blizzard.req_lock, flags);
414 while (!list_empty(&blizzard.pending_req_list)) {
415 struct blizzard_request *req;
416 void (*complete)(void *);
419 req = list_entry(blizzard.pending_req_list.next,
420 struct blizzard_request, entry);
421 spin_unlock_irqrestore(&blizzard.req_lock, flags);
423 if (req->handler(req) == REQ_PENDING)
426 complete = req->complete;
427 complete_data = req->complete_data;
431 complete(complete_data);
433 spin_lock_irqsave(&blizzard.req_lock, flags);
436 spin_unlock_irqrestore(&blizzard.req_lock, flags);
439 static void submit_req_list(struct list_head *head)
444 spin_lock_irqsave(&blizzard.req_lock, flags);
445 if (likely(!list_empty(&blizzard.pending_req_list)))
447 list_splice_init(head, blizzard.pending_req_list.prev);
448 spin_unlock_irqrestore(&blizzard.req_lock, flags);
451 process_pending_requests();
454 static void request_complete(void *data)
456 struct blizzard_request *req = (struct blizzard_request *)data;
457 void (*complete)(void *);
460 complete = req->complete;
461 complete_data = req->complete_data;
466 complete(complete_data);
468 process_pending_requests();
472 static int do_full_screen_update(struct blizzard_request *req)
477 for (i = 0; i < 3; i++) {
478 struct plane_info *p = &blizzard.plane[i];
479 if (!(blizzard.enabled_planes & (1 << i))) {
480 blizzard.int_ctrl->enable_plane(i, 0);
483 dev_dbg(blizzard.fbdev->dev, "pw %d ph %d\n",
484 p->width, p->height);
485 blizzard.int_ctrl->setup_plane(i,
486 OMAPFB_CHANNEL_OUT_LCD, p->offset,
487 p->scr_width, p->pos_x, p->pos_y,
490 blizzard.int_ctrl->enable_plane(i, 1);
493 dev_dbg(blizzard.fbdev->dev, "sw %d sh %d\n",
494 blizzard.screen_width, blizzard.screen_height);
495 blizzard_wait_line_buffer();
496 flags = req->par.update.flags;
497 if (flags & OMAPFB_FORMAT_FLAG_TEARSYNC)
498 enable_tearsync(0, blizzard.screen_width,
499 blizzard.screen_height,
500 blizzard.screen_height,
501 blizzard.screen_height,
502 flags & OMAPFB_FORMAT_FLAG_FORCE_VSYNC);
506 set_window_regs(0, 0, blizzard.screen_width, blizzard.screen_height,
507 0, 0, blizzard.screen_width, blizzard.screen_height,
508 BLIZZARD_COLOR_RGB565, blizzard.zoom_on, flags);
509 blizzard.zoom_on = 0;
511 blizzard.extif->set_bits_per_cycle(16);
512 /* set_window_regs has left the register index at the right
513 * place, so no need to set it here.
515 blizzard.extif->transfer_area(blizzard.screen_width,
516 blizzard.screen_height,
517 request_complete, req);
521 static int check_1d_intersect(int a1, int a2, int b1, int b2)
523 if (a2 <= b1 || b2 <= a1) return 0;
527 /* Setup all planes with an overlapping area with the update window. */
528 static int do_partial_update(struct blizzard_request *req, int plane,
529 int x, int y, int w, int h,
530 int x_out, int y_out, int w_out, int h_out,
531 int wnd_color_mode, int bpp)
534 int gx1, gy1, gx2, gy2;
535 int gx1_out, gy1_out, gx2_out, gy2_out;
539 int have_zoom_for_this_update = 0;
541 /* Global coordinates, relative to pixel 0,0 of the LCD */
542 gx1 = x + blizzard.plane[plane].pos_x;
543 gy1 = y + blizzard.plane[plane].pos_y;
547 flags = req->par.update.flags;
548 if (flags & OMAPFB_FORMAT_FLAG_DOUBLE) {
551 gx2_out = gx1 + w * 2;
552 gy2_out = gy1 + h * 2;
554 gx1_out = x_out + blizzard.plane[plane].pos_x;
555 gy1_out = y_out + blizzard.plane[plane].pos_y;
556 gx2_out = gx1_out + w_out;
557 gy2_out = gy1_out + h_out;
560 for (i = 0; i < OMAPFB_PLANE_NUM; i++) {
561 struct plane_info *p = &blizzard.plane[i];
566 unsigned long offset;
568 if (!(blizzard.enabled_planes & (1 << i)) ||
569 (wnd_color_mode && i != plane)) {
570 blizzard.int_ctrl->enable_plane(i, 0);
573 /* Plane coordinates */
575 /* Plane in which we are doing the update.
576 * Local coordinates are the one in the update
586 /* Check if this plane has an overlapping part */
587 px1 = gx1 - p->pos_x;
588 py1 = gy1 - p->pos_y;
589 px2 = gx2 - p->pos_x;
590 py2 = gy2 - p->pos_y;
591 if (px1 >= p->width || py1 >= p->height ||
592 px2 <= 0 || py2 <= 0) {
593 blizzard.int_ctrl->enable_plane(i, 0);
596 /* Calculate the coordinates for the overlapping
597 * part in the plane's local coordinates.
616 offset = p->offset + (p->scr_width * py1 + px1) * p->bpp / 8;
618 /* Window embedded in the plane with a differing
619 * color mode / bpp. Calculate the number of DMA
620 * transfer elements in terms of the plane's bpp.
622 pw = (pw + 1) * bpp / p->bpp;
624 dev_dbg(blizzard.fbdev->dev,
625 "plane %d offset %#08lx pposx %d pposy %d "
626 "px1 %d py1 %d pw %d ph %d\n",
627 i, offset, pposx, pposy, px1, py1, pw, ph);
629 blizzard.int_ctrl->setup_plane(i,
630 OMAPFB_CHANNEL_OUT_LCD, offset,
632 pposx, pposy, pw, ph,
635 blizzard.int_ctrl->enable_plane(i, 1);
638 switch (wnd_color_mode) {
639 case OMAPFB_COLOR_YUV420:
640 color_mode = BLIZZARD_COLOR_YUV420;
641 /* Currently only the 16 bits/pixel cycle format is
642 * supported on the external interface. Adjust the number
643 * of transfer elements per line for 12bpp format.
648 color_mode = BLIZZARD_COLOR_RGB565;
652 blizzard_wait_line_buffer();
653 if (blizzard.last_color_mode == BLIZZARD_COLOR_YUV420)
655 blizzard.last_color_mode = color_mode;
656 if (flags & OMAPFB_FORMAT_FLAG_TEARSYNC)
657 enable_tearsync(gy1, w, h,
658 blizzard.screen_height,
660 flags & OMAPFB_FORMAT_FLAG_FORCE_VSYNC);
664 if ((gx2_out - gx1_out) != (gx2 - gx1) ||
665 (gy2_out - gy1_out) != (gy2 - gy1))
666 have_zoom_for_this_update = 1;
668 /* 'background' type of screen update (as opposed to 'destructive')
669 can be used to disable scaling if scaling is active */
670 zoom_off = blizzard.zoom_on && !have_zoom_for_this_update &&
671 (gx1_out == 0) && (gx2_out == blizzard.screen_width) &&
672 (gy1_out == 0) && (gy2_out == blizzard.screen_height) &&
673 (gx1 == 0) && (gy1 == 0);
675 if (blizzard.zoom_on && !have_zoom_for_this_update && !zoom_off &&
676 check_1d_intersect(blizzard.zoom_area_gx1, blizzard.zoom_area_gx2,
678 check_1d_intersect(blizzard.zoom_area_gy1, blizzard.zoom_area_gy2,
680 /* Previous screen update was using scaling, current update
681 * is not using it. Additionally, current screen update is
682 * going to overlap with the scaled area. Scaling needs to be
683 * disabled in order to avoid 'magnifying glass' effect.
684 * Dummy setup of background window can be used for this.
686 set_window_regs(0, 0, blizzard.screen_width,
687 blizzard.screen_height,
688 0, 0, blizzard.screen_width,
689 blizzard.screen_height,
690 BLIZZARD_COLOR_RGB565, 1, flags);
691 blizzard.zoom_on = 0;
694 /* remember scaling settings if we have scaled update */
695 if (have_zoom_for_this_update) {
696 blizzard.zoom_on = 1;
697 blizzard.zoom_area_gx1 = gx1_out;
698 blizzard.zoom_area_gx2 = gx2_out;
699 blizzard.zoom_area_gy1 = gy1_out;
700 blizzard.zoom_area_gy2 = gy2_out;
703 set_window_regs(gx1, gy1, gx2, gy2, gx1_out, gy1_out, gx2_out, gy2_out,
704 color_mode, zoom_off, flags);
706 blizzard.zoom_on = 0;
708 blizzard.extif->set_bits_per_cycle(16);
709 /* set_window_regs has left the register index at the right
710 * place, so no need to set it here.
712 blizzard.extif->transfer_area(w, h, request_complete, req);
717 static int send_frame_handler(struct blizzard_request *req)
719 struct update_param *par = &req->par.update;
720 int plane = par->plane;
723 dev_dbg(blizzard.fbdev->dev,
724 "send_frame: x %d y %d w %d h %d "
725 "x_out %d y_out %d w_out %d h_out %d "
726 "color_mode %04x flags %04x planes %01x\n",
727 par->x, par->y, par->width, par->height,
728 par->out_x, par->out_y, par->out_width, par->out_height,
729 par->color_mode, par->flags, blizzard.enabled_planes);
731 if (par->flags & OMAPFB_FORMAT_FLAG_DISABLE_OVERLAY)
734 if ((blizzard.enabled_planes & blizzard.vid_nonstd_color) ||
735 (blizzard.enabled_planes & blizzard.vid_scaled))
736 return do_full_screen_update(req);
738 return do_partial_update(req, plane, par->x, par->y,
739 par->width, par->height,
740 par->out_x, par->out_y,
741 par->out_width, par->out_height,
742 par->color_mode, par->bpp);
745 static void send_frame_complete(void *data)
749 #define ADD_PREQ(_x, _y, _w, _h, _x_out, _y_out, _w_out, _h_out) do { \
751 req->handler = send_frame_handler; \
752 req->complete = send_frame_complete; \
753 req->par.update.plane = plane_idx; \
754 req->par.update.x = _x; \
755 req->par.update.y = _y; \
756 req->par.update.width = _w; \
757 req->par.update.height = _h; \
758 req->par.update.out_x = _x_out; \
759 req->par.update.out_y = _y_out; \
760 req->par.update.out_width = _w_out; \
761 req->par.update.out_height = _h_out; \
762 req->par.update.bpp = bpp; \
763 req->par.update.color_mode = color_mode;\
764 req->par.update.flags = flags; \
765 list_add_tail(&req->entry, req_head); \
768 static void create_req_list(int plane_idx,
769 struct omapfb_update_window *win,
770 struct list_head *req_head)
772 struct blizzard_request *req;
775 int width = win->width;
776 int height = win->height;
777 int x_out = win->out_x;
778 int y_out = win->out_y;
779 int width_out = win->out_width;
780 int height_out = win->out_height;
784 unsigned int ystart = y;
785 unsigned int yspan = height;
786 unsigned int ystart_out = y_out;
787 unsigned int yspan_out = height_out;
789 flags = win->format & ~OMAPFB_FORMAT_MASK;
790 color_mode = win->format & OMAPFB_FORMAT_MASK;
791 switch (color_mode) {
792 case OMAPFB_COLOR_YUV420:
793 /* Embedded window with different color mode */
795 /* X, Y, height must be aligned at 2, width at 4 pixels */
798 height = yspan = height & ~1;
802 /* Same as the plane color mode */
803 bpp = blizzard.plane[plane_idx].bpp;
806 if (width * height * bpp / 8 > blizzard.max_transmit_size) {
807 yspan = blizzard.max_transmit_size / (width * bpp / 8);
808 yspan_out = yspan * height_out / height;
809 ADD_PREQ(x, ystart, width, yspan, x_out, ystart_out,
810 width_out, yspan_out);
812 ystart_out += yspan_out;
813 yspan = height - yspan;
814 yspan_out = height_out - yspan_out;
815 flags &= ~OMAPFB_FORMAT_FLAG_TEARSYNC;
818 ADD_PREQ(x, ystart, width, yspan, x_out, ystart_out,
819 width_out, yspan_out);
822 static void auto_update_complete(void *data)
824 if (!blizzard.stop_auto_update)
825 mod_timer(&blizzard.auto_update_timer,
826 jiffies + BLIZZARD_AUTO_UPDATE_TIME);
829 static void blizzard_update_window_auto(unsigned long arg)
832 struct blizzard_request *last;
833 struct omapfb_plane_struct *plane;
835 plane = blizzard.fbdev->fb_info[0]->par;
836 create_req_list(plane->idx,
837 &blizzard.auto_update_window, &req_list);
838 last = list_entry(req_list.prev, struct blizzard_request, entry);
840 last->complete = auto_update_complete;
841 last->complete_data = NULL;
843 submit_req_list(&req_list);
846 int blizzard_update_window_async(struct fb_info *fbi,
847 struct omapfb_update_window *win,
848 void (*complete_callback)(void *arg),
849 void *complete_callback_data)
852 struct blizzard_request *last;
853 struct omapfb_plane_struct *plane = fbi->par;
855 if (unlikely(blizzard.update_mode != OMAPFB_MANUAL_UPDATE))
857 if (unlikely(!blizzard.te_connected &&
858 (win->format & OMAPFB_FORMAT_FLAG_TEARSYNC)))
861 create_req_list(plane->idx, win, &req_list);
862 last = list_entry(req_list.prev, struct blizzard_request, entry);
864 last->complete = complete_callback;
865 last->complete_data = (void *)complete_callback_data;
867 submit_req_list(&req_list);
871 EXPORT_SYMBOL(blizzard_update_window_async);
873 static int update_full_screen(void)
875 return blizzard_update_window_async(blizzard.fbdev->fb_info[0],
876 &blizzard.auto_update_window, NULL, NULL);
880 static int blizzard_setup_plane(int plane, int channel_out,
881 unsigned long offset, int screen_width,
882 int pos_x, int pos_y, int width, int height,
885 struct plane_info *p;
888 dev_dbg(blizzard.fbdev->dev,
889 "plane %d ch_out %d offset %#08lx scr_width %d "
890 "pos_x %d pos_y %d width %d height %d color_mode %d\n",
891 plane, channel_out, offset, screen_width,
892 pos_x, pos_y, width, height, color_mode);
894 if ((unsigned)plane > OMAPFB_PLANE_NUM)
896 p = &blizzard.plane[plane];
898 switch (color_mode) {
899 case OMAPFB_COLOR_YUV422:
900 case OMAPFB_COLOR_YUY422:
902 blizzard.vid_nonstd_color &= ~(1 << plane);
904 case OMAPFB_COLOR_YUV420:
906 blizzard.vid_nonstd_color |= 1 << plane;
908 case OMAPFB_COLOR_RGB565:
910 blizzard.vid_nonstd_color &= ~(1 << plane);
921 p->scr_width = screen_width;
923 p->out_width = width;
925 p->out_height = height;
927 p->color_mode = color_mode;
932 static int blizzard_set_scale(int plane, int orig_w, int orig_h,
933 int out_w, int out_h)
935 struct plane_info *p = &blizzard.plane[plane];
938 dev_dbg(blizzard.fbdev->dev,
939 "plane %d orig_w %d orig_h %d out_w %d out_h %d\n",
940 plane, orig_w, orig_h, out_w, out_h);
941 if ((unsigned)plane > OMAPFB_PLANE_NUM)
944 r = blizzard.int_ctrl->set_scale(plane, orig_w, orig_h, out_w, out_h);
950 p->out_width = out_w;
951 p->out_height = out_h;
952 if (orig_w == out_w && orig_h == out_h)
953 blizzard.vid_scaled &= ~(1 << plane);
955 blizzard.vid_scaled |= 1 << plane;
960 static int blizzard_set_rotate(int angle)
964 l = blizzard_read_reg(BLIZZARD_PANEL_CONFIGURATION);
984 blizzard_write_reg(BLIZZARD_PANEL_CONFIGURATION, l);
989 static int blizzard_enable_plane(int plane, int enable)
992 blizzard.enabled_planes |= 1 << plane;
994 blizzard.enabled_planes &= ~(1 << plane);
999 static int sync_handler(struct blizzard_request *req)
1001 complete(req->par.sync);
1002 return REQ_COMPLETE;
1005 static void blizzard_sync(void)
1007 LIST_HEAD(req_list);
1008 struct blizzard_request *req;
1009 struct completion comp;
1013 req->handler = sync_handler;
1014 req->complete = NULL;
1015 init_completion(&comp);
1016 req->par.sync = ∁
1018 list_add(&req->entry, &req_list);
1019 submit_req_list(&req_list);
1021 wait_for_completion(&comp);
1025 static void blizzard_bind_client(struct omapfb_notifier_block *nb)
1027 if (blizzard.update_mode == OMAPFB_MANUAL_UPDATE) {
1028 omapfb_notify_clients(blizzard.fbdev, OMAPFB_EVENT_READY);
1032 static int blizzard_set_update_mode(enum omapfb_update_mode mode)
1034 if (unlikely(mode != OMAPFB_MANUAL_UPDATE &&
1035 mode != OMAPFB_AUTO_UPDATE &&
1036 mode != OMAPFB_UPDATE_DISABLED))
1039 if (mode == blizzard.update_mode)
1042 dev_info(blizzard.fbdev->dev, "s1d1374x: setting update mode to %s\n",
1043 mode == OMAPFB_UPDATE_DISABLED ? "disabled" :
1044 (mode == OMAPFB_AUTO_UPDATE ? "auto" : "manual"));
1046 switch (blizzard.update_mode) {
1047 case OMAPFB_MANUAL_UPDATE:
1048 omapfb_notify_clients(blizzard.fbdev, OMAPFB_EVENT_DISABLED);
1050 case OMAPFB_AUTO_UPDATE:
1051 blizzard.stop_auto_update = 1;
1052 del_timer_sync(&blizzard.auto_update_timer);
1054 case OMAPFB_UPDATE_DISABLED:
1058 blizzard.update_mode = mode;
1060 blizzard.stop_auto_update = 0;
1063 case OMAPFB_MANUAL_UPDATE:
1064 omapfb_notify_clients(blizzard.fbdev, OMAPFB_EVENT_READY);
1066 case OMAPFB_AUTO_UPDATE:
1067 blizzard_update_window_auto(0);
1069 case OMAPFB_UPDATE_DISABLED:
1076 static enum omapfb_update_mode blizzard_get_update_mode(void)
1078 return blizzard.update_mode;
1081 static inline void set_extif_timings(const struct extif_timings *t)
1083 blizzard.extif->set_timings(t);
1086 static inline unsigned long round_to_extif_ticks(unsigned long ps, int div)
1088 int bus_tick = blizzard.extif_clk_period * div;
1089 return (ps + bus_tick - 1) / bus_tick * bus_tick;
1092 static int calc_reg_timing(unsigned long sysclk, int div)
1094 struct extif_timings *t;
1095 unsigned long systim;
1097 /* CSOnTime 0, WEOnTime 2 ns, REOnTime 2 ns,
1098 * AccessTime 2 ns + 12.2 ns (regs),
1099 * WEOffTime = WEOnTime + 1 ns,
1100 * REOffTime = REOnTime + 12 ns (regs),
1101 * CSOffTime = REOffTime + 1 ns
1102 * ReadCycle = 2ns + 2*SYSCLK (regs),
1103 * WriteCycle = 2*SYSCLK + 2 ns,
1104 * CSPulseWidth = 10 ns */
1106 systim = 1000000000 / (sysclk / 1000);
1107 dev_dbg(blizzard.fbdev->dev,
1108 "Blizzard systim %lu ps extif_clk_period %u div %d\n",
1109 systim, blizzard.extif_clk_period, div);
1111 t = &blizzard.reg_timings;
1112 memset(t, 0, sizeof(*t));
1117 t->we_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div);
1118 t->re_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div);
1119 t->access_time = round_to_extif_ticks(t->re_on_time + 12200, div);
1120 t->we_off_time = round_to_extif_ticks(t->we_on_time + 1000, div);
1121 t->re_off_time = round_to_extif_ticks(t->re_on_time + 13000, div);
1122 t->cs_off_time = round_to_extif_ticks(t->re_off_time + 1000, div);
1123 t->we_cycle_time = round_to_extif_ticks(2 * systim + 2000, div);
1124 if (t->we_cycle_time < t->we_off_time)
1125 t->we_cycle_time = t->we_off_time;
1126 t->re_cycle_time = round_to_extif_ticks(2 * systim + 2000, div);
1127 if (t->re_cycle_time < t->re_off_time)
1128 t->re_cycle_time = t->re_off_time;
1129 t->cs_pulse_width = 0;
1131 dev_dbg(blizzard.fbdev->dev, "[reg]cson %d csoff %d reon %d reoff %d\n",
1132 t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time);
1133 dev_dbg(blizzard.fbdev->dev, "[reg]weon %d weoff %d recyc %d wecyc %d\n",
1134 t->we_on_time, t->we_off_time, t->re_cycle_time,
1136 dev_dbg(blizzard.fbdev->dev, "[reg]rdaccess %d cspulse %d\n",
1137 t->access_time, t->cs_pulse_width);
1139 return blizzard.extif->convert_timings(t);
1142 static int calc_lut_timing(unsigned long sysclk, int div)
1144 struct extif_timings *t;
1145 unsigned long systim;
1147 /* CSOnTime 0, WEOnTime 2 ns, REOnTime 2 ns,
1148 * AccessTime 2 ns + 4 * SYSCLK + 26 (lut),
1149 * WEOffTime = WEOnTime + 1 ns,
1150 * REOffTime = REOnTime + 4*SYSCLK + 26 ns (lut),
1151 * CSOffTime = REOffTime + 1 ns
1152 * ReadCycle = 2ns + 4*SYSCLK + 26 ns (lut),
1153 * WriteCycle = 2*SYSCLK + 2 ns,
1154 * CSPulseWidth = 10 ns */
1156 systim = 1000000000 / (sysclk / 1000);
1157 dev_dbg(blizzard.fbdev->dev,
1158 "Blizzard systim %lu ps extif_clk_period %u div %d\n",
1159 systim, blizzard.extif_clk_period, div);
1161 t = &blizzard.lut_timings;
1162 memset(t, 0, sizeof(*t));
1167 t->we_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div);
1168 t->re_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div);
1169 t->access_time = round_to_extif_ticks(t->re_on_time + 4 * systim +
1171 t->we_off_time = round_to_extif_ticks(t->we_on_time + 1000, div);
1172 t->re_off_time = round_to_extif_ticks(t->re_on_time + 4 * systim +
1174 t->cs_off_time = round_to_extif_ticks(t->re_off_time + 1000, div);
1175 t->we_cycle_time = round_to_extif_ticks(2 * systim + 2000, div);
1176 if (t->we_cycle_time < t->we_off_time)
1177 t->we_cycle_time = t->we_off_time;
1178 t->re_cycle_time = round_to_extif_ticks(2000 + 4 * systim + 26000, div);
1179 if (t->re_cycle_time < t->re_off_time)
1180 t->re_cycle_time = t->re_off_time;
1181 t->cs_pulse_width = 0;
1183 dev_dbg(blizzard.fbdev->dev,
1184 "[lut]cson %d csoff %d reon %d reoff %d\n",
1185 t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time);
1186 dev_dbg(blizzard.fbdev->dev,
1187 "[lut]weon %d weoff %d recyc %d wecyc %d\n",
1188 t->we_on_time, t->we_off_time, t->re_cycle_time,
1190 dev_dbg(blizzard.fbdev->dev, "[lut]rdaccess %d cspulse %d\n",
1191 t->access_time, t->cs_pulse_width);
1193 return blizzard.extif->convert_timings(t);
1196 static int calc_extif_timings(unsigned long sysclk, int *extif_mem_div)
1201 blizzard.extif->get_clk_info(&blizzard.extif_clk_period, &max_clk_div);
1202 for (div = 1; div <= max_clk_div; div++) {
1203 if (calc_reg_timing(sysclk, div) == 0)
1206 if (div > max_clk_div) {
1207 dev_dbg(blizzard.fbdev->dev, "reg timing failed\n");
1210 *extif_mem_div = div;
1212 for (div = 1; div <= max_clk_div; div++) {
1213 if (calc_lut_timing(sysclk, div) == 0)
1217 if (div > max_clk_div)
1220 blizzard.extif_clk_div = div;
1224 dev_err(blizzard.fbdev->dev, "can't setup timings\n");
1228 static void calc_blizzard_clk_rates(unsigned long ext_clk,
1229 unsigned long *sys_clk, unsigned long *pix_clk)
1232 int sys_div = 0, sys_mul = 0;
1235 pix_clk_src = blizzard_read_reg(BLIZZARD_CLK_SRC);
1236 pix_div = ((pix_clk_src >> 3) & 0x1f) + 1;
1237 if ((pix_clk_src & (0x3 << 1)) == 0) {
1238 /* Source is the PLL */
1239 sys_div = (blizzard_read_reg(BLIZZARD_PLL_DIV) & 0x3f) + 1;
1240 sys_mul = blizzard_read_reg(BLIZZARD_PLL_CLOCK_SYNTH_0);
1241 sys_mul |= ((blizzard_read_reg(BLIZZARD_PLL_CLOCK_SYNTH_1)
1243 *sys_clk = ext_clk * sys_mul / sys_div;
1244 } else /* else source is ext clk, or oscillator */
1247 *pix_clk = *sys_clk / pix_div; /* HZ */
1248 dev_dbg(blizzard.fbdev->dev,
1249 "ext_clk %ld pix_src %d pix_div %d sys_div %d sys_mul %d\n",
1250 ext_clk, pix_clk_src & (0x3 << 1), pix_div, sys_div, sys_mul);
1251 dev_dbg(blizzard.fbdev->dev, "sys_clk %ld pix_clk %ld\n",
1252 *sys_clk, *pix_clk);
1255 static int setup_tearsync(unsigned long pix_clk, int extif_div)
1261 int hs_pol_inv, vs_pol_inv;
1262 int use_hsvs, use_ndp;
1265 hsw = blizzard_read_reg(BLIZZARD_HSW);
1266 vsw = blizzard_read_reg(BLIZZARD_VSW);
1267 hs_pol_inv = !(hsw & 0x80);
1268 vs_pol_inv = !(vsw & 0x80);
1272 hdisp = blizzard_read_reg(BLIZZARD_HDISP) * 8;
1273 vdisp = blizzard_read_reg(BLIZZARD_VDISP0) +
1274 ((blizzard_read_reg(BLIZZARD_VDISP1) & 0x3) << 8);
1276 hndp = blizzard_read_reg(BLIZZARD_HNDP) & 0x3f;
1277 vndp = blizzard_read_reg(BLIZZARD_VNDP);
1279 /* time to transfer one pixel (16bpp) in ps */
1280 blizzard.pix_tx_time = blizzard.reg_timings.we_cycle_time;
1281 if (blizzard.extif->get_max_tx_rate != NULL) {
1282 /* The external interface might have a rate limitation,
1283 * if so, we have to maximize our transfer rate.
1285 unsigned long min_tx_time;
1286 unsigned long max_tx_rate = blizzard.extif->get_max_tx_rate();
1288 dev_dbg(blizzard.fbdev->dev, "max_tx_rate %ld HZ\n",
1290 min_tx_time = 1000000000 / (max_tx_rate / 1000); /* ps */
1291 if (blizzard.pix_tx_time < min_tx_time)
1292 blizzard.pix_tx_time = min_tx_time;
1295 /* time to update one line in ps */
1296 blizzard.line_upd_time = (hdisp + hndp) * 1000000 / (pix_clk / 1000);
1297 blizzard.line_upd_time *= 1000;
1298 if (hdisp * blizzard.pix_tx_time > blizzard.line_upd_time)
1299 /* transfer speed too low, we might have to use both
1303 /* decent transfer speed, we'll always use only VS */
1306 if (use_hsvs && (hs_pol_inv || vs_pol_inv)) {
1307 /* HS or'ed with VS doesn't work, use the active high
1308 * TE signal based on HNDP / VNDP */
1315 /* Use HS or'ed with VS as a TE signal if both are needed
1316 * or VNDP if only vsync is needed. */
1326 hs = hs * 1000000 / (pix_clk / 1000); /* ps */
1329 vs = vs * (hdisp + hndp) * 1000000 / (pix_clk / 1000); /* ps */
1334 /* set VS to 120% of HS to minimize VS detection time */
1336 /* minimize HS too */
1340 b = blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS);
1342 b |= use_hsvs ? 1 : 0;
1343 b |= (use_ndp && use_hsvs) ? 0 : 2;
1344 blizzard_write_reg(BLIZZARD_NDISP_CTRL_STATUS, b);
1346 blizzard.vsync_only = !use_hsvs;
1348 dev_dbg(blizzard.fbdev->dev,
1349 "pix_clk %ld HZ pix_tx_time %ld ps line_upd_time %ld ps\n",
1350 pix_clk, blizzard.pix_tx_time, blizzard.line_upd_time);
1351 dev_dbg(blizzard.fbdev->dev,
1352 "hs %d ps vs %d ps mode %d vsync_only %d\n",
1353 hs, vs, b & 0x3, !use_hsvs);
1355 return blizzard.extif->setup_tearsync(1, hs, vs,
1356 hs_pol_inv, vs_pol_inv,
1360 static void blizzard_get_caps(int plane, struct omapfb_caps *caps)
1362 blizzard.int_ctrl->get_caps(plane, caps);
1363 caps->ctrl |= OMAPFB_CAPS_MANUAL_UPDATE |
1364 OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE |
1365 OMAPFB_CAPS_WINDOW_SCALE |
1366 OMAPFB_CAPS_WINDOW_OVERLAY |
1367 OMAPFB_CAPS_WINDOW_ROTATE;
1368 if (blizzard.te_connected)
1369 caps->ctrl |= OMAPFB_CAPS_TEARSYNC;
1370 caps->wnd_color |= (1 << OMAPFB_COLOR_RGB565) |
1371 (1 << OMAPFB_COLOR_YUV420);
1374 static void _save_regs(struct blizzard_reg_list *list, int cnt)
1378 for (i = 0; i < cnt; i++, list++) {
1380 for (reg = list->start; reg <= list->end; reg += 2)
1381 blizzard_reg_cache[reg / 2] = blizzard_read_reg(reg);
1385 static void _restore_regs(struct blizzard_reg_list *list, int cnt)
1389 for (i = 0; i < cnt; i++, list++) {
1391 for (reg = list->start; reg <= list->end; reg += 2)
1392 blizzard_write_reg(reg, blizzard_reg_cache[reg / 2]);
1396 static void blizzard_save_all_regs(void)
1398 _save_regs(blizzard_pll_regs, ARRAY_SIZE(blizzard_pll_regs));
1399 _save_regs(blizzard_gen_regs, ARRAY_SIZE(blizzard_gen_regs));
1402 static void blizzard_restore_pll_regs(void)
1404 _restore_regs(blizzard_pll_regs, ARRAY_SIZE(blizzard_pll_regs));
1407 static void blizzard_restore_gen_regs(void)
1409 _restore_regs(blizzard_gen_regs, ARRAY_SIZE(blizzard_gen_regs));
1412 static void blizzard_suspend(void)
1417 if (blizzard.last_color_mode) {
1418 update_full_screen();
1421 blizzard.update_mode_before_suspend = blizzard.update_mode;
1422 /* the following will disable clocks as well */
1423 blizzard_set_update_mode(OMAPFB_UPDATE_DISABLED);
1425 blizzard_save_all_regs();
1427 blizzard_stop_sdram();
1429 l = blizzard_read_reg(BLIZZARD_POWER_SAVE);
1430 /* Standby, Sleep. We assume we use an external clock. */
1432 blizzard_write_reg(BLIZZARD_POWER_SAVE, l);
1434 tmo = jiffies + msecs_to_jiffies(100);
1435 while (!(blizzard_read_reg(BLIZZARD_PLL_MODE) & (1 << 1))) {
1436 if (time_after(jiffies, tmo)) {
1437 dev_err(blizzard.fbdev->dev,
1438 "s1d1374x: sleep timeout, stopping PLL manually\n");
1439 l = blizzard_read_reg(BLIZZARD_PLL_MODE);
1441 /* Disable PLL, counter function */
1443 blizzard_write_reg(BLIZZARD_PLL_MODE, l);
1449 if (blizzard.power_down != NULL)
1450 blizzard.power_down(blizzard.fbdev->dev);
1453 static void blizzard_resume(void)
1457 if (blizzard.power_up != NULL)
1458 blizzard.power_up(blizzard.fbdev->dev);
1460 l = blizzard_read_reg(BLIZZARD_POWER_SAVE);
1461 /* Standby, Sleep */
1463 blizzard_write_reg(BLIZZARD_POWER_SAVE, l);
1465 blizzard_restore_pll_regs();
1466 l = blizzard_read_reg(BLIZZARD_PLL_MODE);
1468 /* Enable PLL, counter function */
1470 blizzard_write_reg(BLIZZARD_PLL_MODE, l);
1472 while (!(blizzard_read_reg(BLIZZARD_PLL_DIV) & (1 << 7)))
1475 blizzard_restart_sdram();
1477 blizzard_restore_gen_regs();
1479 /* Enable display */
1480 blizzard_write_reg(BLIZZARD_DISPLAY_MODE, 0x01);
1482 /* the following will enable clocks as necessary */
1483 blizzard_set_update_mode(blizzard.update_mode_before_suspend);
1485 /* Force a background update */
1486 blizzard.zoom_on = 1;
1487 update_full_screen();
1491 static int blizzard_init(struct omapfb_device *fbdev, int ext_mode,
1492 struct omapfb_mem_desc *req_vram)
1496 unsigned long ext_clk;
1498 unsigned long sys_clk, pix_clk;
1499 struct omapfb_platform_data *omapfb_conf;
1500 struct blizzard_platform_data *ctrl_conf;
1502 blizzard.fbdev = fbdev;
1504 BUG_ON(!fbdev->ext_if || !fbdev->int_ctrl);
1506 blizzard.fbdev = fbdev;
1507 blizzard.extif = fbdev->ext_if;
1508 blizzard.int_ctrl = fbdev->int_ctrl;
1510 omapfb_conf = fbdev->dev->platform_data;
1511 ctrl_conf = omapfb_conf->ctrl_platform_data;
1512 if (ctrl_conf == NULL || ctrl_conf->get_clock_rate == NULL) {
1513 dev_err(fbdev->dev, "s1d1374x: missing platform data\n");
1518 blizzard.power_down = ctrl_conf->power_down;
1519 blizzard.power_up = ctrl_conf->power_up;
1521 spin_lock_init(&blizzard.req_lock);
1523 if ((r = blizzard.int_ctrl->init(fbdev, 1, req_vram)) < 0)
1526 if ((r = blizzard.extif->init(fbdev)) < 0)
1529 blizzard_ctrl.set_color_key = blizzard.int_ctrl->set_color_key;
1530 blizzard_ctrl.get_color_key = blizzard.int_ctrl->get_color_key;
1531 blizzard_ctrl.setup_mem = blizzard.int_ctrl->setup_mem;
1532 blizzard_ctrl.mmap = blizzard.int_ctrl->mmap;
1534 ext_clk = ctrl_conf->get_clock_rate(fbdev->dev);
1535 if ((r = calc_extif_timings(ext_clk, &extif_div)) < 0)
1538 set_extif_timings(&blizzard.reg_timings);
1540 if (blizzard.power_up != NULL)
1541 blizzard.power_up(fbdev->dev);
1543 calc_blizzard_clk_rates(ext_clk, &sys_clk, &pix_clk);
1545 if ((r = calc_extif_timings(sys_clk, &extif_div)) < 0)
1547 set_extif_timings(&blizzard.reg_timings);
1549 if (!(blizzard_read_reg(BLIZZARD_PLL_DIV) & 0x80)) {
1551 "controller not initialized by the bootloader\n");
1556 if (ctrl_conf->te_connected) {
1557 if ((r = setup_tearsync(pix_clk, extif_div)) < 0)
1559 blizzard.te_connected = 1;
1562 rev = blizzard_read_reg(BLIZZARD_REV_CODE);
1563 conf = blizzard_read_reg(BLIZZARD_CONFIG);
1565 switch (rev & 0xfc) {
1567 blizzard.version = BLIZZARD_VERSION_S1D13744;
1568 pr_info("omapfb: s1d13744 LCD controller rev %d "
1569 "initialized (CNF pins %x)\n", rev & 0x03, conf & 0x07);
1572 blizzard.version = BLIZZARD_VERSION_S1D13745;
1573 pr_info("omapfb: s1d13745 LCD controller rev %d "
1574 "initialized (CNF pins %x)\n", rev & 0x03, conf & 0x07);
1577 dev_err(fbdev->dev, "invalid s1d1374x revision %02x\n",
1583 blizzard.max_transmit_size = blizzard.extif->max_transmit_size;
1585 blizzard.update_mode = OMAPFB_UPDATE_DISABLED;
1587 blizzard.auto_update_window.x = 0;
1588 blizzard.auto_update_window.y = 0;
1589 blizzard.auto_update_window.width = fbdev->panel->x_res;
1590 blizzard.auto_update_window.height = fbdev->panel->y_res;
1591 blizzard.auto_update_window.out_x = 0;
1592 blizzard.auto_update_window.out_x = 0;
1593 blizzard.auto_update_window.out_width = fbdev->panel->x_res;
1594 blizzard.auto_update_window.out_height = fbdev->panel->y_res;
1595 blizzard.auto_update_window.format = 0;
1597 blizzard.screen_width = fbdev->panel->x_res;
1598 blizzard.screen_height = fbdev->panel->y_res;
1600 init_timer(&blizzard.auto_update_timer);
1601 blizzard.auto_update_timer.function = blizzard_update_window_auto;
1602 blizzard.auto_update_timer.data = 0;
1604 INIT_LIST_HEAD(&blizzard.free_req_list);
1605 INIT_LIST_HEAD(&blizzard.pending_req_list);
1606 for (i = 0; i < ARRAY_SIZE(blizzard.req_pool); i++)
1607 list_add(&blizzard.req_pool[i].entry, &blizzard.free_req_list);
1608 BUG_ON(i <= IRQ_REQ_POOL_SIZE);
1609 sema_init(&blizzard.req_sema, i - IRQ_REQ_POOL_SIZE);
1613 if (blizzard.power_down != NULL)
1614 blizzard.power_down(fbdev->dev);
1615 blizzard.extif->cleanup();
1617 blizzard.int_ctrl->cleanup();
1622 static void blizzard_cleanup(void)
1624 blizzard_set_update_mode(OMAPFB_UPDATE_DISABLED);
1625 blizzard.extif->cleanup();
1626 blizzard.int_ctrl->cleanup();
1627 if (blizzard.power_down != NULL)
1628 blizzard.power_down(blizzard.fbdev->dev);
1631 struct lcd_ctrl blizzard_ctrl = {
1633 .init = blizzard_init,
1634 .cleanup = blizzard_cleanup,
1635 .bind_client = blizzard_bind_client,
1636 .get_caps = blizzard_get_caps,
1637 .set_update_mode = blizzard_set_update_mode,
1638 .get_update_mode = blizzard_get_update_mode,
1639 .setup_plane = blizzard_setup_plane,
1640 .set_scale = blizzard_set_scale,
1641 .enable_plane = blizzard_enable_plane,
1642 .set_rotate = blizzard_set_rotate,
1643 .update_window = blizzard_update_window_async,
1644 .sync = blizzard_sync,
1645 .suspend = blizzard_suspend,
1646 .resume = blizzard_resume,