diff options
Diffstat (limited to 'drivers/video/omap/blizzard.c')
| -rw-r--r-- | drivers/video/omap/blizzard.c | 1648 |
1 files changed, 0 insertions, 1648 deletions
diff --git a/drivers/video/omap/blizzard.c b/drivers/video/omap/blizzard.c deleted file mode 100644 index c0504a8a5079..000000000000 --- a/drivers/video/omap/blizzard.c +++ /dev/null @@ -1,1648 +0,0 @@ -/* - * Epson Blizzard LCD controller driver - * - * Copyright (C) 2004-2005 Nokia Corporation - * Authors: Juha Yrjola <juha.yrjola@nokia.com> - * Imre Deak <imre.deak@nokia.com> - * YUV support: Jussi Laako <jussi.laako@nokia.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ -#include <linux/module.h> -#include <linux/mm.h> -#include <linux/fb.h> -#include <linux/delay.h> -#include <linux/clk.h> - -#include <plat/dma.h> -#include <plat/blizzard.h> - -#include "omapfb.h" -#include "dispc.h" - -#define MODULE_NAME "blizzard" - -#define BLIZZARD_REV_CODE 0x00 -#define BLIZZARD_CONFIG 0x02 -#define BLIZZARD_PLL_DIV 0x04 -#define BLIZZARD_PLL_LOCK_RANGE 0x06 -#define BLIZZARD_PLL_CLOCK_SYNTH_0 0x08 -#define BLIZZARD_PLL_CLOCK_SYNTH_1 0x0a -#define BLIZZARD_PLL_MODE 0x0c -#define BLIZZARD_CLK_SRC 0x0e -#define BLIZZARD_MEM_BANK0_ACTIVATE 0x10 -#define BLIZZARD_MEM_BANK0_STATUS 0x14 -#define BLIZZARD_PANEL_CONFIGURATION 0x28 -#define BLIZZARD_HDISP 0x2a -#define BLIZZARD_HNDP 0x2c -#define BLIZZARD_VDISP0 0x2e -#define BLIZZARD_VDISP1 0x30 -#define BLIZZARD_VNDP 0x32 -#define BLIZZARD_HSW 0x34 -#define BLIZZARD_VSW 0x38 -#define BLIZZARD_DISPLAY_MODE 0x68 -#define BLIZZARD_INPUT_WIN_X_START_0 0x6c -#define BLIZZARD_DATA_SOURCE_SELECT 0x8e -#define BLIZZARD_DISP_MEM_DATA_PORT 0x90 -#define BLIZZARD_DISP_MEM_READ_ADDR0 0x92 -#define BLIZZARD_POWER_SAVE 0xE6 -#define BLIZZARD_NDISP_CTRL_STATUS 0xE8 - -/* Data source select */ -/* For S1D13745 */ -#define BLIZZARD_SRC_WRITE_LCD_BACKGROUND 0x00 -#define BLIZZARD_SRC_WRITE_LCD_DESTRUCTIVE 0x01 -#define BLIZZARD_SRC_WRITE_OVERLAY_ENABLE 0x04 -#define BLIZZARD_SRC_DISABLE_OVERLAY 0x05 -/* For S1D13744 */ -#define BLIZZARD_SRC_WRITE_LCD 0x00 -#define BLIZZARD_SRC_BLT_LCD 0x06 - -#define BLIZZARD_COLOR_RGB565 0x01 -#define BLIZZARD_COLOR_YUV420 0x09 - -#define BLIZZARD_VERSION_S1D13745 0x01 /* Hailstorm */ -#define BLIZZARD_VERSION_S1D13744 0x02 /* Blizzard */ - -#define BLIZZARD_AUTO_UPDATE_TIME (HZ / 20) - -/* Reserve 4 request slots for requests in irq context */ -#define REQ_POOL_SIZE 24 -#define IRQ_REQ_POOL_SIZE 4 - -#define REQ_FROM_IRQ_POOL 0x01 - -#define REQ_COMPLETE 0 -#define REQ_PENDING 1 - -struct blizzard_reg_list { - int start; - int end; -}; - -/* These need to be saved / restored separately from the rest. */ -static const struct blizzard_reg_list blizzard_pll_regs[] = { - { - .start = 0x04, /* Don't save PLL ctrl (0x0C) */ - .end = 0x0a, - }, - { - .start = 0x0e, /* Clock configuration */ - .end = 0x0e, - }, -}; - -static const struct blizzard_reg_list blizzard_gen_regs[] = { - { - .start = 0x18, /* SDRAM control */ - .end = 0x20, - }, - { - .start = 0x28, /* LCD Panel configuration */ - .end = 0x5a, /* HSSI interface, TV configuration */ - }, -}; - -static u8 blizzard_reg_cache[0x5a / 2]; - -struct update_param { - int plane; - int x, y, width, height; - int out_x, out_y; - int out_width, out_height; - int color_mode; - int bpp; - int flags; -}; - -struct blizzard_request { - struct list_head entry; - unsigned int flags; - - int (*handler)(struct blizzard_request *req); - void (*complete)(void *data); - void *complete_data; - - union { - struct update_param update; - struct completion *sync; - } par; -}; - -struct plane_info { - unsigned long offset; - int pos_x, pos_y; - int width, height; - int out_width, out_height; - int scr_width; - int color_mode; - int bpp; -}; - -struct blizzard_struct { - enum omapfb_update_mode update_mode; - enum omapfb_update_mode update_mode_before_suspend; - - struct timer_list auto_update_timer; - int stop_auto_update; - struct omapfb_update_window auto_update_window; - int enabled_planes; - int vid_nonstd_color; - int vid_scaled; - int last_color_mode; - int zoom_on; - int zoom_area_gx1; - int zoom_area_gx2; - int zoom_area_gy1; - int zoom_area_gy2; - int screen_width; - int screen_height; - unsigned te_connected:1; - unsigned vsync_only:1; - - struct plane_info plane[OMAPFB_PLANE_NUM]; - - struct blizzard_request req_pool[REQ_POOL_SIZE]; - struct list_head pending_req_list; - struct list_head free_req_list; - struct semaphore req_sema; - spinlock_t req_lock; - - unsigned long sys_ck_rate; - struct extif_timings reg_timings, lut_timings; - - u32 max_transmit_size; - u32 extif_clk_period; - int extif_clk_div; - unsigned long pix_tx_time; - unsigned long line_upd_time; - - struct omapfb_device *fbdev; - struct lcd_ctrl_extif *extif; - const struct lcd_ctrl *int_ctrl; - - void (*power_up)(struct device *dev); - void (*power_down)(struct device *dev); - - int version; -} blizzard; - -struct lcd_ctrl blizzard_ctrl; - -static u8 blizzard_read_reg(u8 reg) -{ - u8 data; - - blizzard.extif->set_bits_per_cycle(8); - blizzard.extif->write_command(®, 1); - blizzard.extif->read_data(&data, 1); - - return data; -} - -static void blizzard_write_reg(u8 reg, u8 val) -{ - blizzard.extif->set_bits_per_cycle(8); - blizzard.extif->write_command(®, 1); - blizzard.extif->write_data(&val, 1); -} - -static void blizzard_restart_sdram(void) -{ - unsigned long tmo; - - blizzard_write_reg(BLIZZARD_MEM_BANK0_ACTIVATE, 0); - udelay(50); - blizzard_write_reg(BLIZZARD_MEM_BANK0_ACTIVATE, 1); - tmo = jiffies + msecs_to_jiffies(200); - while (!(blizzard_read_reg(BLIZZARD_MEM_BANK0_STATUS) & 0x01)) { - if (time_after(jiffies, tmo)) { - dev_err(blizzard.fbdev->dev, - "s1d1374x: SDRAM not ready\n"); - break; - } - msleep(1); - } -} - -static void blizzard_stop_sdram(void) -{ - blizzard_write_reg(BLIZZARD_MEM_BANK0_ACTIVATE, 0); -} - -/* Wait until the last window was completely written into the controllers - * SDRAM and we can start transferring the next window. - */ -static void blizzard_wait_line_buffer(void) -{ - unsigned long tmo = jiffies + msecs_to_jiffies(30); - - while (blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS) & (1 << 7)) { - if (time_after(jiffies, tmo)) { - if (printk_ratelimit()) - dev_err(blizzard.fbdev->dev, - "s1d1374x: line buffer not ready\n"); - break; - } - } -} - -/* Wait until the YYC color space converter is idle. */ -static void blizzard_wait_yyc(void) -{ - unsigned long tmo = jiffies + msecs_to_jiffies(30); - - while (blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS) & (1 << 4)) { - if (time_after(jiffies, tmo)) { - if (printk_ratelimit()) - dev_err(blizzard.fbdev->dev, - "s1d1374x: YYC not ready\n"); - break; - } - } -} - -static void disable_overlay(void) -{ - blizzard_write_reg(BLIZZARD_DATA_SOURCE_SELECT, - BLIZZARD_SRC_DISABLE_OVERLAY); -} - -static void set_window_regs(int x_start, int y_start, int x_end, int y_end, - int x_out_start, int y_out_start, - int x_out_end, int y_out_end, int color_mode, - int zoom_off, int flags) -{ - u8 tmp[18]; - u8 cmd; - - x_end--; - y_end--; - tmp[0] = x_start; - tmp[1] = x_start >> 8; - tmp[2] = y_start; - tmp[3] = y_start >> 8; - tmp[4] = x_end; - tmp[5] = x_end >> 8; - tmp[6] = y_end; - tmp[7] = y_end >> 8; - - x_out_end--; - y_out_end--; - tmp[8] = x_out_start; - tmp[9] = x_out_start >> 8; - tmp[10] = y_out_start; - tmp[11] = y_out_start >> 8; - tmp[12] = x_out_end; - tmp[13] = x_out_end >> 8; - tmp[14] = y_out_end; - tmp[15] = y_out_end >> 8; - - tmp[16] = color_mode; - if (zoom_off && blizzard.version == BLIZZARD_VERSION_S1D13745) - tmp[17] = BLIZZARD_SRC_WRITE_LCD_BACKGROUND; - else if (flags & OMAPFB_FORMAT_FLAG_ENABLE_OVERLAY) - tmp[17] = BLIZZARD_SRC_WRITE_OVERLAY_ENABLE; - else - tmp[17] = blizzard.version == BLIZZARD_VERSION_S1D13744 ? - BLIZZARD_SRC_WRITE_LCD : - BLIZZARD_SRC_WRITE_LCD_DESTRUCTIVE; - - blizzard.extif->set_bits_per_cycle(8); - cmd = BLIZZARD_INPUT_WIN_X_START_0; - blizzard.extif->write_command(&cmd, 1); - blizzard.extif->write_data(tmp, 18); -} - -static void enable_tearsync(int y, int width, int height, int screen_height, - int out_height, int force_vsync) -{ - u8 b; - - b = blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS); - b |= 1 << 3; - blizzard_write_reg(BLIZZARD_NDISP_CTRL_STATUS, b); - - if (likely(blizzard.vsync_only || force_vsync)) { - blizzard.extif->enable_tearsync(1, 0); - return; - } - - if (width * blizzard.pix_tx_time < blizzard.line_upd_time) { - blizzard.extif->enable_tearsync(1, 0); - return; - } - - if ((width * blizzard.pix_tx_time / 1000) * height < - (y + out_height) * (blizzard.line_upd_time / 1000)) { - blizzard.extif->enable_tearsync(1, 0); - return; - } - - blizzard.extif->enable_tearsync(1, y + 1); -} - -static void disable_tearsync(void) -{ - u8 b; - - blizzard.extif->enable_tearsync(0, 0); - b = blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS); - b &= ~(1 << 3); - blizzard_write_reg(BLIZZARD_NDISP_CTRL_STATUS, b); - b = blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS); -} - -static inline void set_extif_timings(const struct extif_timings *t); - -static inline struct blizzard_request *alloc_req(void) -{ - unsigned long flags; - struct blizzard_request *req; - int req_flags = 0; - - if (!in_interrupt()) - down(&blizzard.req_sema); - else - req_flags = REQ_FROM_IRQ_POOL; - - spin_lock_irqsave(&blizzard.req_lock, flags); - BUG_ON(list_empty(&blizzard.free_req_list)); - req = list_entry(blizzard.free_req_list.next, - struct blizzard_request, entry); - list_del(&req->entry); - spin_unlock_irqrestore(&blizzard.req_lock, flags); - - INIT_LIST_HEAD(&req->entry); - req->flags = req_flags; - - return req; -} - -static inline void free_req(struct blizzard_request *req) -{ - unsigned long flags; - - spin_lock_irqsave(&blizzard.req_lock, flags); - - list_move(&req->entry, &blizzard.free_req_list); - if (!(req->flags & REQ_FROM_IRQ_POOL)) - up(&blizzard.req_sema); - - spin_unlock_irqrestore(&blizzard.req_lock, flags); -} - -static void process_pending_requests(void) -{ - unsigned long flags; - - spin_lock_irqsave(&blizzard.req_lock, flags); - - while (!list_empty(&blizzard.pending_req_list)) { - struct blizzard_request *req; - void (*complete)(void *); - void *complete_data; - - req = list_entry(blizzard.pending_req_list.next, - struct blizzard_request, entry); - spin_unlock_irqrestore(&blizzard.req_lock, flags); - - if (req->handler(req) == REQ_PENDING) - return; - - complete = req->complete; - complete_data = req->complete_data; - free_req(req); - - if (complete) - complete(complete_data); - - spin_lock_irqsave(&blizzard.req_lock, flags); - } - - spin_unlock_irqrestore(&blizzard.req_lock, flags); -} - -static void submit_req_list(struct list_head *head) -{ - unsigned long flags; - int process = 1; - - spin_lock_irqsave(&blizzard.req_lock, flags); - if (likely(!list_empty(&blizzard.pending_req_list))) - process = 0; - list_splice_init(head, blizzard.pending_req_list.prev); - spin_unlock_irqrestore(&blizzard.req_lock, flags); - - if (process) - process_pending_requests(); -} - -static void request_complete(void *data) -{ - struct blizzard_request *req = (struct blizzard_request *)data; - void (*complete)(void *); - void *complete_data; - - complete = req->complete; - complete_data = req->complete_data; - - free_req(req); - - if (complete) - complete(complete_data); - - process_pending_requests(); -} - - -static int do_full_screen_update(struct blizzard_request *req) -{ - int i; - int flags; - - for (i = 0; i < 3; i++) { - struct plane_info *p = &blizzard.plane[i]; - if (!(blizzard.enabled_planes & (1 << i))) { - blizzard.int_ctrl->enable_plane(i, 0); - continue; - } - dev_dbg(blizzard.fbdev->dev, "pw %d ph %d\n", - p->width, p->height); - blizzard.int_ctrl->setup_plane(i, - OMAPFB_CHANNEL_OUT_LCD, p->offset, - p->scr_width, p->pos_x, p->pos_y, - p->width, p->height, - p->color_mode); - blizzard.int_ctrl->enable_plane(i, 1); - } - - dev_dbg(blizzard.fbdev->dev, "sw %d sh %d\n", - blizzard.screen_width, blizzard.screen_height); - blizzard_wait_line_buffer(); - flags = req->par.update.flags; - if (flags & OMAPFB_FORMAT_FLAG_TEARSYNC) - enable_tearsync(0, blizzard.screen_width, - blizzard.screen_height, - blizzard.screen_height, - blizzard.screen_height, - flags & OMAPFB_FORMAT_FLAG_FORCE_VSYNC); - else - disable_tearsync(); - - set_window_regs(0, 0, blizzard.screen_width, blizzard.screen_height, - 0, 0, blizzard.screen_width, blizzard.screen_height, - BLIZZARD_COLOR_RGB565, blizzard.zoom_on, flags); - blizzard.zoom_on = 0; - - blizzard.extif->set_bits_per_cycle(16); - /* set_window_regs has left the register index at the right - * place, so no need to set it here. - */ - blizzard.extif->transfer_area(blizzard.screen_width, - blizzard.screen_height, - request_complete, req); - return REQ_PENDING; -} - -static int check_1d_intersect(int a1, int a2, int b1, int b2) -{ - if (a2 <= b1 || b2 <= a1) - return 0; - return 1; -} - -/* Setup all planes with an overlapping area with the update window. */ -static int do_partial_update(struct blizzard_request *req, int plane, - int x, int y, int w, int h, - int x_out, int y_out, int w_out, int h_out, - int wnd_color_mode, int bpp) -{ - int i; - int gx1, gy1, gx2, gy2; - int gx1_out, gy1_out, gx2_out, gy2_out; - int color_mode; - int flags; - int zoom_off; - int have_zoom_for_this_update = 0; - - /* Global coordinates, relative to pixel 0,0 of the LCD */ - gx1 = x + blizzard.plane[plane].pos_x; - gy1 = y + blizzard.plane[plane].pos_y; - gx2 = gx1 + w; - gy2 = gy1 + h; - - flags = req->par.update.flags; - if (flags & OMAPFB_FORMAT_FLAG_DOUBLE) { - gx1_out = gx1; - gy1_out = gy1; - gx2_out = gx1 + w * 2; - gy2_out = gy1 + h * 2; - } else { - gx1_out = x_out + blizzard.plane[plane].pos_x; - gy1_out = y_out + blizzard.plane[plane].pos_y; - gx2_out = gx1_out + w_out; - gy2_out = gy1_out + h_out; - } - - for (i = 0; i < OMAPFB_PLANE_NUM; i++) { - struct plane_info *p = &blizzard.plane[i]; - int px1, py1; - int px2, py2; - int pw, ph; - int pposx, pposy; - unsigned long offset; - - if (!(blizzard.enabled_planes & (1 << i)) || - (wnd_color_mode && i != plane)) { - blizzard.int_ctrl->enable_plane(i, 0); - continue; - } - /* Plane coordinates */ - if (i == plane) { - /* Plane in which we are doing the update. - * Local coordinates are the one in the update - * request. - */ - px1 = x; - py1 = y; - px2 = x + w; - py2 = y + h; - pposx = 0; - pposy = 0; - } else { - /* Check if this plane has an overlapping part */ - px1 = gx1 - p->pos_x; - py1 = gy1 - p->pos_y; - px2 = gx2 - p->pos_x; - py2 = gy2 - p->pos_y; - if (px1 >= p->width || py1 >= p->height || - px2 <= 0 || py2 <= 0) { - blizzard.int_ctrl->enable_plane(i, 0); - continue; - } - /* Calculate the coordinates for the overlapping - * part in the plane's local coordinates. - */ - pposx = -px1; - pposy = -py1; - if (px1 < 0) - px1 = 0; - if (py1 < 0) - py1 = 0; - if (px2 > p->width) - px2 = p->width; - if (py2 > p->height) - py2 = p->height; - if (pposx < 0) - pposx = 0; - if (pposy < 0) - pposy = 0; - } - pw = px2 - px1; - ph = py2 - py1; - offset = p->offset + (p->scr_width * py1 + px1) * p->bpp / 8; - if (wnd_color_mode) - /* Window embedded in the plane with a differing - * color mode / bpp. Calculate the number of DMA - * transfer elements in terms of the plane's bpp. - */ - pw = (pw + 1) * bpp / p->bpp; -#ifdef VERBOSE - dev_dbg(blizzard.fbdev->dev, - "plane %d offset %#08lx pposx %d pposy %d " - "px1 %d py1 %d pw %d ph %d\n", - i, offset, pposx, pposy, px1, py1, pw, ph); -#endif - blizzard.int_ctrl->setup_plane(i, - OMAPFB_CHANNEL_OUT_LCD, offset, - p->scr_width, - pposx, pposy, pw, ph, - p->color_mode); - - blizzard.int_ctrl->enable_plane(i, 1); - } - - switch (wnd_color_mode) { - case OMAPFB_COLOR_YUV420: - color_mode = BLIZZARD_COLOR_YUV420; - /* Currently only the 16 bits/pixel cycle format is - * supported on the external interface. Adjust the number - * of transfer elements per line for 12bpp format. - */ - w = (w + 1) * 3 / 4; - break; - default: - color_mode = BLIZZARD_COLOR_RGB565; - break; - } - - blizzard_wait_line_buffer(); - if (blizzard.last_color_mode == BLIZZARD_COLOR_YUV420) - blizzard_wait_yyc(); - blizzard.last_color_mode = color_mode; - if (flags & OMAPFB_FORMAT_FLAG_TEARSYNC) - enable_tearsync(gy1, w, h, - blizzard.screen_height, - h_out, - flags & OMAPFB_FORMAT_FLAG_FORCE_VSYNC); - else - disable_tearsync(); - - if ((gx2_out - gx1_out) != (gx2 - gx1) || - (gy2_out - gy1_out) != (gy2 - gy1)) - have_zoom_for_this_update = 1; - - /* 'background' type of screen update (as opposed to 'destructive') - can be used to disable scaling if scaling is active */ - zoom_off = blizzard.zoom_on && !have_zoom_for_this_update && - (gx1_out == 0) && (gx2_out == blizzard.screen_width) && - (gy1_out == 0) && (gy2_out == blizzard.screen_height) && - (gx1 == 0) && (gy1 == 0); - - if (blizzard.zoom_on && !have_zoom_for_this_update && !zoom_off && - check_1d_intersect(blizzard.zoom_area_gx1, blizzard.zoom_area_gx2, - gx1_out, gx2_out) && - check_1d_intersect(blizzard.zoom_area_gy1, blizzard.zoom_area_gy2, - gy1_out, gy2_out)) { - /* Previous screen update was using scaling, current update - * is not using it. Additionally, current screen update is - * going to overlap with the scaled area. Scaling needs to be - * disabled in order to avoid 'magnifying glass' effect. - * Dummy setup of background window can be used for this. - */ - set_window_regs(0, 0, blizzard.screen_width, - blizzard.screen_height, - 0, 0, blizzard.screen_width, - blizzard.screen_height, - BLIZZARD_COLOR_RGB565, 1, flags); - blizzard.zoom_on = 0; - } - - /* remember scaling settings if we have scaled update */ - if (have_zoom_for_this_update) { - blizzard.zoom_on = 1; - blizzard.zoom_area_gx1 = gx1_out; - blizzard.zoom_area_gx2 = gx2_out; - blizzard.zoom_area_gy1 = gy1_out; - blizzard.zoom_area_gy2 = gy2_out; - } - - set_window_regs(gx1, gy1, gx2, gy2, gx1_out, gy1_out, gx2_out, gy2_out, - color_mode, zoom_off, flags); - if (zoom_off) - blizzard.zoom_on = 0; - - blizzard.extif->set_bits_per_cycle(16); - /* set_window_regs has left the register index at the right - * place, so no need to set it here. - */ - blizzard.extif->transfer_area(w, h, request_complete, req); - - return REQ_PENDING; -} - -static int send_frame_handler(struct blizzard_request *req) -{ - struct update_param *par = &req->par.update; - int plane = par->plane; - -#ifdef VERBOSE - dev_dbg(blizzard.fbdev->dev, - "send_frame: x %d y %d w %d h %d " - "x_out %d y_out %d w_out %d h_out %d " - "color_mode %04x flags %04x planes %01x\n", - par->x, par->y, par->width, par->height, - par->out_x, par->out_y, par->out_width, par->out_height, - par->color_mode, par->flags, blizzard.enabled_planes); -#endif - if (par->flags & OMAPFB_FORMAT_FLAG_DISABLE_OVERLAY) - disable_overlay(); - - if ((blizzard.enabled_planes & blizzard.vid_nonstd_color) || - (blizzard.enabled_planes & blizzard.vid_scaled)) - return do_full_screen_update(req); - - return do_partial_update(req, plane, par->x, par->y, - par->width, par->height, - par->out_x, par->out_y, - par->out_width, par->out_height, - par->color_mode, par->bpp); -} - -static void send_frame_complete(void *data) -{ -} - -#define ADD_PREQ(_x, _y, _w, _h, _x_out, _y_out, _w_out, _h_out) do { \ - req = alloc_req(); \ - req->handler = send_frame_handler; \ - req->complete = send_frame_complete; \ - req->par.update.plane = plane_idx; \ - req->par.update.x = _x; \ - req->par.update.y = _y; \ - req->par.update.width = _w; \ - req->par.update.height = _h; \ - req->par.update.out_x = _x_out; \ - req->par.update.out_y = _y_out; \ - req->par.update.out_width = _w_out; \ - req->par.update.out_height = _h_out; \ - req->par.update.bpp = bpp; \ - req->par.update.color_mode = color_mode;\ - req->par.update.flags = flags; \ - list_add_tail(&req->entry, req_head); \ -} while(0) - -static void create_req_list(int plane_idx, - struct omapfb_update_window *win, - struct list_head *req_head) -{ - struct blizzard_request *req; - int x = win->x; - int y = win->y; - int width = win->width; - int height = win->height; - int x_out = win->out_x; - int y_out = win->out_y; - int width_out = win->out_width; - int height_out = win->out_height; - int color_mode; - int bpp; - int flags; - unsigned int ystart = y; - unsigned int yspan = height; - unsigned int ystart_out = y_out; - unsigned int yspan_out = height_out; - - flags = win->format & ~OMAPFB_FORMAT_MASK; - color_mode = win->format & OMAPFB_FORMAT_MASK; - switch (color_mode) { - case OMAPFB_COLOR_YUV420: - /* Embedded window with different color mode */ - bpp = 12; - /* X, Y, height must be aligned at 2, width at 4 pixels */ - x &= ~1; - y &= ~1; - height = yspan = height & ~1; - width = width & ~3; - break; - default: - /* Same as the plane color mode */ - bpp = blizzard.plane[plane_idx].bpp; - break; - } - if (width * height * bpp / 8 > blizzard.max_transmit_size) { - yspan = blizzard.max_transmit_size / (width * bpp / 8); - yspan_out = yspan * height_out / height; - ADD_PREQ(x, ystart, width, yspan, x_out, ystart_out, - width_out, yspan_out); - ystart += yspan; - ystart_out += yspan_out; - yspan = height - yspan; - yspan_out = height_out - yspan_out; - flags &= ~OMAPFB_FORMAT_FLAG_TEARSYNC; - } - - ADD_PREQ(x, ystart, width, yspan, x_out, ystart_out, - width_out, yspan_out); -} - -static void auto_update_complete(void *data) -{ - if (!blizzard.stop_auto_update) - mod_timer(&blizzard.auto_update_timer, - jiffies + BLIZZARD_AUTO_UPDATE_TIME); -} - -static void blizzard_update_window_auto(unsigned long arg) -{ - LIST_HEAD(req_list); - struct blizzard_request *last; - struct omapfb_plane_struct *plane; - - plane = blizzard.fbdev->fb_info[0]->par; - create_req_list(plane->idx, - &blizzard.auto_update_window, &req_list); - last = list_entry(req_list.prev, struct blizzard_request, entry); - - last->complete = auto_update_complete; - last->complete_data = NULL; - - submit_req_list(&req_list); -} - -int blizzard_update_window_async(struct fb_info *fbi, - struct omapfb_update_window *win, - void (*complete_callback)(void *arg), - void *complete_callback_data) -{ - LIST_HEAD(req_list); - struct blizzard_request *last; - struct omapfb_plane_struct *plane = fbi->par; - - if (unlikely(blizzard.update_mode != OMAPFB_MANUAL_UPDATE)) - return -EINVAL; - if (unlikely(!blizzard.te_connected && - (win->format & OMAPFB_FORMAT_FLAG_TEARSYNC))) - return -EINVAL; - - create_req_list(plane->idx, win, &req_list); - last = list_entry(req_list.prev, struct blizzard_request, entry); - - last->complete = complete_callback; - last->complete_data = (void *)complete_callback_data; - - submit_req_list(&req_list); - - return 0; -} -EXPORT_SYMBOL(blizzard_update_window_async); - -static int update_full_screen(void) -{ - return blizzard_update_window_async(blizzard.fbdev->fb_info[0], - &blizzard.auto_update_window, NULL, NULL); - -} - -static int blizzard_setup_plane(int plane, int channel_out, - unsigned long offset, int screen_width, - int pos_x, int pos_y, int width, int height, - int color_mode) -{ - struct plane_info *p; - -#ifdef VERBOSE - dev_dbg(blizzard.fbdev->dev, - "plane %d ch_out %d offset %#08lx scr_width %d " - "pos_x %d pos_y %d width %d height %d color_mode %d\n", - plane, channel_out, offset, screen_width, - pos_x, pos_y, width, height, color_mode); -#endif - if ((unsigned)plane > OMAPFB_PLANE_NUM) - return -EINVAL; - p = &blizzard.plane[plane]; - - switch (color_mode) { - case OMAPFB_COLOR_YUV422: - case OMAPFB_COLOR_YUY422: - p->bpp = 16; - blizzard.vid_nonstd_color &= ~(1 << plane); - break; - case OMAPFB_COLOR_YUV420: - p->bpp = 12; - blizzard.vid_nonstd_color |= 1 << plane; - break; - case OMAPFB_COLOR_RGB565: - p->bpp = 16; - blizzard.vid_nonstd_color &= ~(1 << plane); - break; - default: - return -EINVAL; - } - - p->offset = offset; - p->pos_x = pos_x; - p->pos_y = pos_y; - p->width = width; - p->height = height; - p->scr_width = screen_width; - if (!p->out_width) - p->out_width = width; - if (!p->out_height) - p->out_height = height; - - p->color_mode = color_mode; - - return 0; -} - -static int blizzard_set_scale(int plane, int orig_w, int orig_h, - int out_w, int out_h) -{ - struct plane_info *p = &blizzard.plane[plane]; - int r; - - dev_dbg(blizzard.fbdev->dev, - "plane %d orig_w %d orig_h %d out_w %d out_h %d\n", - plane, orig_w, orig_h, out_w, out_h); - if ((unsigned)plane > OMAPFB_PLANE_NUM) - return -ENODEV; - - r = blizzard.int_ctrl->set_scale(plane, orig_w, orig_h, out_w, out_h); - if (r < 0) - return r; - - p->width = orig_w; - p->height = orig_h; - p->out_width = out_w; - p->out_height = out_h; - if (orig_w == out_w && orig_h == out_h) - blizzard.vid_scaled &= ~(1 << plane); - else - blizzard.vid_scaled |= 1 << plane; - - return 0; -} - -static int blizzard_set_rotate(int angle) -{ - u32 l; - - l = blizzard_read_reg(BLIZZARD_PANEL_CONFIGURATION); - l &= ~0x03; - - switch (angle) { - case 0: - l = l | 0x00; - break; - case 90: - l = l | 0x03; - break; - case 180: - l = l | 0x02; - break; - case 270: - l = l | 0x01; - break; - default: - return -EINVAL; - } - - blizzard_write_reg(BLIZZARD_PANEL_CONFIGURATION, l); - - return 0; -} - -static int blizzard_enable_plane(int plane, int enable) -{ - if (enable) - blizzard.enabled_planes |= 1 << plane; - else - blizzard.enabled_planes &= ~(1 << plane); - - return 0; -} - -static int sync_handler(struct blizzard_request *req) -{ - complete(req->par.sync); - return REQ_COMPLETE; -} - -static void blizzard_sync(void) -{ - LIST_HEAD(req_list); - struct blizzard_request *req; - struct completion comp; - - req = alloc_req(); - - req->handler = sync_handler; - req->complete = NULL; - init_completion(&comp); - req->par.sync = ∁ - - list_add(&req->entry, &req_list); - submit_req_list(&req_list); - - wait_for_completion(&comp); -} - - -static void blizzard_bind_client(struct omapfb_notifier_block *nb) -{ - if (blizzard.update_mode == OMAPFB_MANUAL_UPDATE) { - omapfb_notify_clients(blizzard.fbdev, OMAPFB_EVENT_READY); - } -} - -static int blizzard_set_update_mode(enum omapfb_update_mode mode) -{ - if (unlikely(mode != OMAPFB_MANUAL_UPDATE && - mode != OMAPFB_AUTO_UPDATE && - mode != OMAPFB_UPDATE_DISABLED)) - return -EINVAL; - - if (mode == blizzard.update_mode) - return 0; - - dev_info(blizzard.fbdev->dev, "s1d1374x: setting update mode to %s\n", - mode == OMAPFB_UPDATE_DISABLED ? "disabled" : - (mode == OMAPFB_AUTO_UPDATE ? "auto" : "manual")); - - switch (blizzard.update_mode) { - case OMAPFB_MANUAL_UPDATE: - omapfb_notify_clients(blizzard.fbdev, OMAPFB_EVENT_DISABLED); - break; - case OMAPFB_AUTO_UPDATE: - blizzard.stop_auto_update = 1; - del_timer_sync(&blizzard.auto_update_timer); - break; - case OMAPFB_UPDATE_DISABLED: - break; - } - - blizzard.update_mode = mode; - blizzard_sync(); - blizzard.stop_auto_update = 0; - - switch (mode) { - case OMAPFB_MANUAL_UPDATE: - omapfb_notify_clients(blizzard.fbdev, OMAPFB_EVENT_READY); - break; - case OMAPFB_AUTO_UPDATE: - blizzard_update_window_auto(0); - break; - case OMAPFB_UPDATE_DISABLED: - break; - } - - return 0; -} - -static enum omapfb_update_mode blizzard_get_update_mode(void) -{ - return blizzard.update_mode; -} - -static inline void set_extif_timings(const struct extif_timings *t) -{ - blizzard.extif->set_timings(t); -} - -static inline unsigned long round_to_extif_ticks(unsigned long ps, int div) -{ - int bus_tick = blizzard.extif_clk_period * div; - return (ps + bus_tick - 1) / bus_tick * bus_tick; -} - -static int calc_reg_timing(unsigned long sysclk, int div) -{ - struct extif_timings *t; - unsigned long systim; - - /* CSOnTime 0, WEOnTime 2 ns, REOnTime 2 ns, - * AccessTime 2 ns + 12.2 ns (regs), - * WEOffTime = WEOnTime + 1 ns, - * REOffTime = REOnTime + 12 ns (regs), - * CSOffTime = REOffTime + 1 ns - * ReadCycle = 2ns + 2*SYSCLK (regs), - * WriteCycle = 2*SYSCLK + 2 ns, - * CSPulseWidth = 10 ns */ - - systim = 1000000000 / (sysclk / 1000); - dev_dbg(blizzard.fbdev->dev, - "Blizzard systim %lu ps extif_clk_period %u div %d\n", - systim, blizzard.extif_clk_period, div); - - t = &blizzard.reg_timings; - memset(t, 0, sizeof(*t)); - - t->clk_div = div; - - t->cs_on_time = 0; - t->we_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div); - t->re_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div); - t->access_time = round_to_extif_ticks(t->re_on_time + 12200, div); - t->we_off_time = round_to_extif_ticks(t->we_on_time + 1000, div); - t->re_off_time = round_to_extif_ticks(t->re_on_time + 13000, div); - t->cs_off_time = round_to_extif_ticks(t->re_off_time + 1000, div); - t->we_cycle_time = round_to_extif_ticks(2 * systim + 2000, div); - if (t->we_cycle_time < t->we_off_time) - t->we_cycle_time = t->we_off_time; - t->re_cycle_time = round_to_extif_ticks(2 * systim + 2000, div); - if (t->re_cycle_time < t->re_off_time) - t->re_cycle_time = t->re_off_time; - t->cs_pulse_width = 0; - - dev_dbg(blizzard.fbdev->dev, "[reg]cson %d csoff %d reon %d reoff %d\n", - t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time); - dev_dbg(blizzard.fbdev->dev, "[reg]weon %d weoff %d recyc %d wecyc %d\n", - t->we_on_time, t->we_off_time, t->re_cycle_time, - t->we_cycle_time); - dev_dbg(blizzard.fbdev->dev, "[reg]rdaccess %d cspulse %d\n", - t->access_time, t->cs_pulse_width); - - return blizzard.extif->convert_timings(t); -} - -static int calc_lut_timing(unsigned long sysclk, int div) -{ - struct extif_timings *t; - unsigned long systim; - - /* CSOnTime 0, WEOnTime 2 ns, REOnTime 2 ns, - * AccessTime 2 ns + 4 * SYSCLK + 26 (lut), - * WEOffTime = WEOnTime + 1 ns, - * REOffTime = REOnTime + 4*SYSCLK + 26 ns (lut), - * CSOffTime = REOffTime + 1 ns - * ReadCycle = 2ns + 4*SYSCLK + 26 ns (lut), - * WriteCycle = 2*SYSCLK + 2 ns, - * CSPulseWidth = 10 ns */ - - systim = 1000000000 / (sysclk / 1000); - dev_dbg(blizzard.fbdev->dev, - "Blizzard systim %lu ps extif_clk_period %u div %d\n", - systim, blizzard.extif_clk_period, div); - - t = &blizzard.lut_timings; - memset(t, 0, sizeof(*t)); - - t->clk_div = div; - - t->cs_on_time = 0; - t->we_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div); - t->re_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div); - t->access_time = round_to_extif_ticks(t->re_on_time + 4 * systim + - 26000, div); - t->we_off_time = round_to_extif_ticks(t->we_on_time + 1000, div); - t->re_off_time = round_to_extif_ticks(t->re_on_time + 4 * systim + - 26000, div); - t->cs_off_time = round_to_extif_ticks(t->re_off_time + 1000, div); - t->we_cycle_time = round_to_extif_ticks(2 * systim + 2000, div); - if (t->we_cycle_time < t->we_off_time) - t->we_cycle_time = t->we_off_time; - t->re_cycle_time = round_to_extif_ticks(2000 + 4 * systim + 26000, div); - if (t->re_cycle_time < t->re_off_time) - t->re_cycle_time = t->re_off_time; - t->cs_pulse_width = 0; - - dev_dbg(blizzard.fbdev->dev, - "[lut]cson %d csoff %d reon %d reoff %d\n", - t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time); - dev_dbg(blizzard.fbdev->dev, - "[lut]weon %d weoff %d recyc %d wecyc %d\n", - t->we_on_time, t->we_off_time, t->re_cycle_time, - t->we_cycle_time); |