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Diffstat (limited to 'board/cm-bf548/video.c')
| -rw-r--r-- | board/cm-bf548/video.c | 339 |
1 files changed, 0 insertions, 339 deletions
diff --git a/board/cm-bf548/video.c b/board/cm-bf548/video.c deleted file mode 100644 index b8cc873..0000000 --- a/board/cm-bf548/video.c +++ /dev/null @@ -1,339 +0,0 @@ -/* - * video.c - run splash screen on lcd - * - * Copyright (c) 2007-2008 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - */ - -#include <stdarg.h> -#include <common.h> -#include <config.h> -#include <malloc.h> -#include <asm/blackfin.h> -#include <asm/clock.h> -#include <asm/gpio.h> -#include <asm/portmux.h> -#include <asm/mach-common/bits/dma.h> -#include <i2c.h> -#include <linux/types.h> -#include <stdio_dev.h> - -#include <lzma/LzmaTypes.h> -#include <lzma/LzmaDec.h> -#include <lzma/LzmaTools.h> - -#define DMA_SIZE16 2 - -#include <asm/mach-common/bits/eppi.h> - -#include EASYLOGO_HEADER - -#define LCD_X_RES 480 /*Horizontal Resolution */ -#define LCD_Y_RES 272 /* Vertical Resolution */ - -#define LCD_BPP 24 /* Bit Per Pixel */ -#define LCD_PIXEL_SIZE (LCD_BPP / 8) -#define DMA_BUS_SIZE 32 -#define ACTIVE_VIDEO_MEM_OFFSET 0 - -/* -- Horizontal synchronizing -- - * - * Timing characteristics taken from the SHARP LQ043T1DG01 datasheet - * (LCY-W-06602A Page 9 of 22) - * - * Clock Frequency 1/Tc Min 7.83 Typ 9.00 Max 9.26 MHz - * - * Period TH - 525 - Clock - * Pulse width THp - 41 - Clock - * Horizontal period THd - 480 - Clock - * Back porch THb - 2 - Clock - * Front porch THf - 2 - Clock - * - * -- Vertical synchronizing -- - * Period TV - 286 - Line - * Pulse width TVp - 10 - Line - * Vertical period TVd - 272 - Line - * Back porch TVb - 2 - Line - * Front porch TVf - 2 - Line - */ - -#define LCD_CLK (8*1000*1000) /* 8MHz */ - -/* # active data to transfer after Horizontal Delay clock */ -#define EPPI_HCOUNT LCD_X_RES - -/* # active lines to transfer after Vertical Delay clock */ -#define EPPI_VCOUNT LCD_Y_RES - -/* Samples per Line = 480 (active data) + 45 (padding) */ -#define EPPI_LINE 525 - -/* Lines per Frame = 272 (active data) + 14 (padding) */ -#define EPPI_FRAME 286 - -/* FS1 (Hsync) Width (Typical)*/ -#define EPPI_FS1W_HBL 41 - -/* FS1 (Hsync) Period (Typical) */ -#define EPPI_FS1P_AVPL EPPI_LINE - -/* Horizontal Delay clock after assertion of Hsync (Typical) */ -#define EPPI_HDELAY 43 - -/* FS2 (Vsync) Width = FS1 (Hsync) Period * 10 */ -#define EPPI_FS2W_LVB (EPPI_LINE * 10) - - /* FS2 (Vsync) Period = FS1 (Hsync) Period * Lines per Frame */ -#define EPPI_FS2P_LAVF (EPPI_LINE * EPPI_FRAME) - -/* Vertical Delay after assertion of Vsync (2 Lines) */ -#define EPPI_VDELAY 12 - -#define EPPI_CLIP 0xFF00FF00 - -/* EPPI Control register configuration value for RGB out - * - EPPI as Output - * GP 2 frame sync mode, - * Internal Clock generation disabled, Internal FS generation enabled, - * Receives samples on EPPI_CLK raising edge, Transmits samples on EPPI_CLK falling edge, - * FS1 & FS2 are active high, - * DLEN = 6 (24 bits for RGB888 out) or 5 (18 bits for RGB666 out) - * DMA Unpacking disabled when RGB Formating is enabled, otherwise DMA unpacking enabled - * Swapping Enabled, - * One (DMA) Channel Mode, - * RGB Formatting Enabled for RGB666 output, disabled for RGB888 output - * Regular watermark - when FIFO is 100% full, - * Urgent watermark - when FIFO is 75% full - */ - -#define EPPI_CONTROL (0x20136E2E) - -static inline u16 get_eppi_clkdiv(u32 target_ppi_clk) -{ - u32 sclk = get_sclk(); - - /* EPPI_CLK = (SCLK) / (2 * (EPPI_CLKDIV[15:0] + 1)) */ - - return (((sclk / target_ppi_clk) / 2) - 1); -} - -void Init_PPI(void) -{ - u16 eppi_clkdiv = get_eppi_clkdiv(LCD_CLK); - - bfin_write_EPPI0_FS1W_HBL(EPPI_FS1W_HBL); - bfin_write_EPPI0_FS1P_AVPL(EPPI_FS1P_AVPL); - bfin_write_EPPI0_FS2W_LVB(EPPI_FS2W_LVB); - bfin_write_EPPI0_FS2P_LAVF(EPPI_FS2P_LAVF); - bfin_write_EPPI0_CLIP(EPPI_CLIP); - - bfin_write_EPPI0_FRAME(EPPI_FRAME); - bfin_write_EPPI0_LINE(EPPI_LINE); - - bfin_write_EPPI0_HCOUNT(EPPI_HCOUNT); - bfin_write_EPPI0_HDELAY(EPPI_HDELAY); - bfin_write_EPPI0_VCOUNT(EPPI_VCOUNT); - bfin_write_EPPI0_VDELAY(EPPI_VDELAY); - - bfin_write_EPPI0_CLKDIV(eppi_clkdiv); - -/* - * DLEN = 6 (24 bits for RGB888 out) or 5 (18 bits for RGB666 out) - * RGB Formatting Enabled for RGB666 output, disabled for RGB888 output - */ -#if defined(CONFIG_VIDEO_RGB666) - bfin_write_EPPI0_CONTROL((EPPI_CONTROL & ~DLENGTH) | DLEN_18 | - RGB_FMT_EN); -#else - bfin_write_EPPI0_CONTROL(((EPPI_CONTROL & ~DLENGTH) | DLEN_24) & - ~RGB_FMT_EN); -#endif - -} - -#define DEB2_URGENT 0x2000 /* DEB2 Urgent */ - -void Init_DMA(void *dst) -{ -#if defined(CONFIG_DEB_DMA_URGENT) - bfin_write_EBIU_DDRQUE(bfin_read_EBIU_DDRQUE() | DEB2_URGENT); -#endif - - bfin_write_DMA12_START_ADDR(dst); - - /* X count */ - bfin_write_DMA12_X_COUNT((LCD_X_RES * LCD_BPP) / DMA_BUS_SIZE); - bfin_write_DMA12_X_MODIFY(DMA_BUS_SIZE / 8); - - /* Y count */ - bfin_write_DMA12_Y_COUNT(LCD_Y_RES); - bfin_write_DMA12_Y_MODIFY(DMA_BUS_SIZE / 8); - - /* DMA Config */ - bfin_write_DMA12_CONFIG( - WDSIZE_32 | /* 32 bit DMA */ - DMA2D | /* 2D DMA */ - FLOW_AUTO /* autobuffer mode */ - ); -} - -void Init_Ports(void) -{ - const unsigned short pins[] = { - P_PPI0_D0, P_PPI0_D1, P_PPI0_D2, P_PPI0_D3, P_PPI0_D4, - P_PPI0_D5, P_PPI0_D6, P_PPI0_D7, P_PPI0_D8, P_PPI0_D9, - P_PPI0_D10, P_PPI0_D11, P_PPI0_D12, P_PPI0_D13, P_PPI0_D14, - P_PPI0_D15, P_PPI0_D16, P_PPI0_D17, -#if !defined(CONFIG_VIDEO_RGB666) - P_PPI0_D18, P_PPI0_D19, P_PPI0_D20, P_PPI0_D21, P_PPI0_D22, - P_PPI0_D23, -#endif - P_PPI0_CLK, P_PPI0_FS1, P_PPI0_FS2, 0, - }; - peripheral_request_list(pins, "lcd"); - - gpio_request(GPIO_PE3, "lcd-disp"); - gpio_direction_output(GPIO_PE3, 1); -} - -void EnableDMA(void) -{ - bfin_write_DMA12_CONFIG(bfin_read_DMA12_CONFIG() | DMAEN); -} - -void DisableDMA(void) -{ - bfin_write_DMA12_CONFIG(bfin_read_DMA12_CONFIG() & ~DMAEN); -} - -/* enable and disable PPI functions */ -void EnablePPI(void) -{ - bfin_write_EPPI0_CONTROL(bfin_read_EPPI0_CONTROL() | EPPI_EN); -} - -void DisablePPI(void) -{ - bfin_write_EPPI0_CONTROL(bfin_read_EPPI0_CONTROL() & ~EPPI_EN); -} - -int video_init(void *dst) -{ - Init_Ports(); - Init_DMA(dst); - EnableDMA(); - Init_PPI(); - EnablePPI(); - - return 0; -} - -void video_stop(void) -{ - DisablePPI(); - DisableDMA(); -} - -static void dma_bitblit(void *dst, fastimage_t *logo, int x, int y) -{ - if (dcache_status()) - blackfin_dcache_flush_range(logo->data, - logo->data + logo->size); - - bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR); - - /* Setup destination start address */ - bfin_write_MDMA_D0_START_ADDR(dst + ((x & -2) * LCD_PIXEL_SIZE) - + (y * LCD_X_RES * LCD_PIXEL_SIZE)); - /* Setup destination xcount */ - bfin_write_MDMA_D0_X_COUNT(logo->width * LCD_PIXEL_SIZE / DMA_SIZE16); - /* Setup destination xmodify */ - bfin_write_MDMA_D0_X_MODIFY(DMA_SIZE16); - - /* Setup destination ycount */ - bfin_write_MDMA_D0_Y_COUNT(logo->height); - /* Setup destination ymodify */ - bfin_write_MDMA_D0_Y_MODIFY((LCD_X_RES - logo->width) * LCD_PIXEL_SIZE + - DMA_SIZE16); - - /* Setup Source start address */ - bfin_write_MDMA_S0_START_ADDR(logo->data); - /* Setup Source xcount */ - bfin_write_MDMA_S0_X_COUNT(logo->width * LCD_PIXEL_SIZE / DMA_SIZE16); - /* Setup Source xmodify */ - bfin_write_MDMA_S0_X_MODIFY(DMA_SIZE16); - - /* Setup Source ycount */ - bfin_write_MDMA_S0_Y_COUNT(logo->height); - /* Setup Source ymodify */ - bfin_write_MDMA_S0_Y_MODIFY(DMA_SIZE16); - - /* Enable source DMA */ - bfin_write_MDMA_S0_CONFIG(DMAEN | WDSIZE_16 | DMA2D); - SSYNC(); - bfin_write_MDMA_D0_CONFIG(WNR | DMAEN | WDSIZE_16 | DMA2D); - - while (bfin_read_MDMA_D0_IRQ_STATUS() & DMA_RUN) ; - - bfin_write_MDMA_S0_IRQ_STATUS(bfin_read_MDMA_S0_IRQ_STATUS() | DMA_DONE - | DMA_ERR); - bfin_write_MDMA_D0_IRQ_STATUS(bfin_read_MDMA_D0_IRQ_STATUS() | DMA_DONE - | DMA_ERR); - -} - -int drv_video_init(void) -{ - int error, devices = 1; - struct stdio_dev videodev; - - u8 *dst; - u32 fbmem_size = - LCD_X_RES * LCD_Y_RES * LCD_PIXEL_SIZE + ACTIVE_VIDEO_MEM_OFFSET; - - dst = malloc(fbmem_size); - - if (dst == NULL) { - printf("Failed to alloc FB memory\n"); - return -1; - } - -#ifdef EASYLOGO_ENABLE_GZIP - unsigned char *data = EASYLOGO_DECOMP_BUFFER; - unsigned long src_len = EASYLOGO_ENABLE_GZIP; - error = gunzip(data, bfin_logo.size, bfin_logo.data, &src_len); - bfin_logo.data = data; -#elif defined(EASYLOGO_ENABLE_LZMA) - unsigned char *data = EASYLOGO_DECOMP_BUFFER; - SizeT lzma_len = bfin_logo.size; - error = lzmaBuffToBuffDecompress(data, &lzma_len, - bfin_logo.data, EASYLOGO_ENABLE_LZMA); - bfin_logo.data = data; -#else - error = 0; -#endif - - if (error) { - puts("Failed to decompress logo\n"); - free(dst); - return -1; - } - - memset(dst + ACTIVE_VIDEO_MEM_OFFSET, bfin_logo.data[0], - fbmem_size - ACTIVE_VIDEO_MEM_OFFSET); - - dma_bitblit(dst + ACTIVE_VIDEO_MEM_OFFSET, &bfin_logo, - (LCD_X_RES - bfin_logo.width) / 2, - (LCD_Y_RES - bfin_logo.height) / 2); - - video_init(dst); /* Video initialization */ - - memset(&videodev, 0, sizeof(videodev)); - - strcpy(videodev.name, "video"); - - error = stdio_register(&videodev); - - return (error == 0) ? devices : error; -} |