/* * (C) Copyright 2005 * M. Amine SAYA, ATMEL Rousset, France. * Added support to AT91SAM9261 LCD Controller * * (C) Copyright 2001-2002 * Wolfgang Denk, DENX Software Engineering -- wd@denx.de * * See file CREDITS for list of people who contributed to this * project. * * 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 */ /************************************************************************/ /* ** HEADER FILES */ /************************************************************************/ #include #include #include #include #include #include #undef CONFIG_LCD_LOGO #include #include "lcd_lut.h" #ifdef CONFIG_LCD //#include #define LCD_BPP LCD_COLOR8 /* #define DEBUG */ #define FB_SYNC_HOR_HIGH_ACT 1 /* horizontal sync high active */ #define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */ /* More or less configurable parameters for LCDC controller*/ #define SIDSAFB_FIFO_SIZE 512 #define SIDSAFB_DMA_BURST_LEN 16 #define SIDSAFB_CRST_VAL 0xc8 /* 0xda */ AT91PS_SYS AT91_SYS = (AT91PS_SYS)AT91C_BASE_SYS; /* 640x480x16 @ 61 Hz */ vidinfo_t panel_info = { vl_col: 240, vl_row: 320, vl_width: 64, vl_height: 86, vl_pixclock: 4965000, vl_hsp: FB_SYNC_HOR_HIGH_ACT, vl_vsp: FB_SYNC_VERT_HIGH_ACT, vl_bpix: 3, vl_tft: 1, /* Horizontal control Timing */ vl_hpw: 5, vl_blw: 1, vl_elw: 33, /* Vertical control Timing */ vl_vpw: 1, vl_bfw: 1, vl_efw: 0, }; /*----------------------------------------------------------------------*/ void lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue); void lcd_ctrl_init (void *lcdbase); void lcd_enable (void); void lcd_init_lut(void); int lcd_line_length; int lcd_color_fg; int lcd_color_bg; void *lcd_base; /* Start of framebuffer memory */ void *lcd_console_address; /* Start of console buffer */ short console_col; short console_row; /************************************************************************/ void lcd_init_lut(void) { unsigned int i; for(i =0; i <256; i++) { #if defined(CONFIG_AT91SAM9261EK) || defined(CONFIG_AT91SAM9263EK) panel_info.controller.lcdc->LCDC_LUT_ENTRY[i] = ((rgbPalette[i].red) >> 3 | ((rgbPalette[i].green & 0xf8) << 2) | ((rgbPalette[i].blue & 0xf8) << 7)); #else panel_info.controller.lcdc->LCDC_LUT_ENTRY[i] = ((rgbPalette[i].blue) >> 3 | ((rgbPalette[i].green & 0xfc) << 3) | ((rgbPalette[i].red & 0xf8) << 8)); #endif } } void lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue) { #if defined(CONFIG_AT91SAM9261EK) || defined(CONFIG_AT91SAM9263EK) panel_info.controller.lcdc->LCDC_LUT_ENTRY[regno] = ((red >> 3) | ((green & 0xf8) << 2) | ((blue & 0xf8) << 7)); #else panel_info.controller.lcdc->LCDC_LUT_ENTRY[regno] = ((blue >> 3) | ((green & 0xfc) << 3) | ((red & 0xf8) << 8)); #endif } void lcd_ctrl_init (void *lcdbase) { unsigned long value; AT91F_LCDC_TFT_CfgPIO(); #ifdef CONFIG_AT91SAM9261EK /* Enable HCLOCK in PMC */ *AT91C_PMC_SCER = AT91C_PMC_HCK1; #endif #ifdef CONFIG_AT91SAM9263EK /* Enable LCDC clock in PMC */ *AT91C_PMC_PCER = 1 << AT91C_ID_LCDC; #endif #ifdef CONFIG_AT91SAM9RLEK /* Enable LCDC clock in PMC */ *AT91C_PMC_PCER = 1 << AT91C_ID_LCDC; #endif /* Init controller field in panel_info */ panel_info.controller.lcdc = (AT91PS_LCDC) AT91C_BASE_LCDC; panel_info.controller.frame_buffer = (unsigned long) lcdbase; /* Turn off the LCD controller and the DMA controller */ panel_info.controller.lcdc->LCDC_PWRCON = 0x00; panel_info.controller.lcdc->LCDC_DMACON = 0; /* Reset LCDC DMA */ panel_info.controller.lcdc->LCDC_DMACON = AT91C_LCDC_DMARST; /* ...set frame size and burst length = 8 words (?) */ value = ((unsigned int)panel_info.vl_row * (unsigned int)panel_info.vl_col * (unsigned int)NBITS(panel_info.vl_bpix)) / 32; value |= ((512 - 1) << 24); panel_info.controller.lcdc->LCDC_FRMCFG = value; /* Set pixel clock */ value = AT91C_MASTER_CLOCK / panel_info.vl_pixclock; if (AT91C_MASTER_CLOCK % panel_info.vl_pixclock) value++; value = (value / 2) - 1; if (!value) { panel_info.controller.lcdc->LCDC_LCDCON1 = AT91C_LCDC_BYPASS; } else panel_info.controller.lcdc->LCDC_LCDCON1 = value << 12; /* Initialize control register 2 */ if (panel_info.vl_tft) value = ( AT91C_LCDC_MEMOR_LITTLEIND | AT91C_LCDC_DISTYPE_TFT | AT91C_LCDC_CLKMOD); else value = ( AT91C_LCDC_MEMOR_LITTLEIND | AT91C_LCDC_CLKMOD); if (!((unsigned int)panel_info.vl_hsp & FB_SYNC_HOR_HIGH_ACT)) value |= 1 << 10; /* INVLINE */ if (!((unsigned int)panel_info.vl_vsp & FB_SYNC_VERT_HIGH_ACT)) value |= 1 << 9; /* INVFRAME */ value |= (unsigned int)(panel_info.vl_bpix << 5); panel_info.controller.lcdc->LCDC_LCDCON2 = value; /* Vertical timing */ value = (unsigned int)((panel_info.vl_vpw - 1) << 16); value |= (unsigned int)(panel_info.vl_bfw << 8); value |= (unsigned int)panel_info.vl_efw; panel_info.controller.lcdc->LCDC_TIM1 = value; /* Horizontal timing */ value = (unsigned int)((panel_info.vl_elw - 1) << 21); value |= (unsigned int)((panel_info.vl_hpw - 1) << 8); value |= (unsigned int)(panel_info.vl_blw - 1); panel_info.controller.lcdc->LCDC_TIM2 = value; value = (unsigned int)((panel_info.vl_col - 1) << 21); value |= (unsigned int)(panel_info.vl_row - 1); panel_info.controller.lcdc->LCDC_LCDFRCFG = value; /* FIFO Threshold: Use formula from data sheet */ value = SIDSAFB_FIFO_SIZE - (2 * SIDSAFB_DMA_BURST_LEN + 3); panel_info.controller.lcdc->LCDC_FIFO = value; /* Toggle LCD_MODE every frame */ value = 0; panel_info.controller.lcdc->LCDC_MVAL = value; /* Disable all interrupts */ panel_info.controller.lcdc->LCDC_IDR = ~0UL; /* Set contrast */ value = AT91C_LCDC_PS_DIVIDEDBYEIGHT | AT91C_LCDC_POL_POSITIVEPULSE | AT91C_LCDC_ENA_PWMGEMENABLED; panel_info.controller.lcdc->LCDC_CTRSTCON = value; panel_info.controller.lcdc->LCDC_CTRSTVAL = 0xDA; /*SIDSAFB_CRST_VAL;*/ panel_info.controller.lcdc->LCDC_BA1 = (unsigned int)lcdbase; panel_info.controller.lcdc->LCDC_FRMCFG = (15 << 24) + ((unsigned int)panel_info.vl_col * (unsigned int)panel_info.vl_row * (unsigned int)NBITS(panel_info.vl_bpix)) / 32; panel_info.controller.lcdc->LCDC_DMACON = AT91C_LCDC_DMAEN; panel_info.controller.lcdc->LCDC_PWRCON = AT91C_LCDC_PWR | 0x0C; } /*----------------------------------------------------------------------*/ void lcd_enable (void) { #ifdef CONFIG_AT91SAM9261EK *AT91C_PIOA_SODR = AT91C_PIO_PA12; #endif #ifdef CONFIG_AT91SAM9263EK *AT91C_PIOD_SODR = AT91C_PIO_PD12; #endif } /*----------------------------------------------------------------------*/ void lcd_disable (void) { #ifdef CONFIG_AT91SAM9261EK *AT91C_PIOA_CODR = AT91C_PIO_PA12; #endif #ifdef CONFIG_AT91SAM9263EK *AT91C_PIOD_CODR = AT91C_PIO_PD12; #endif } /*----------------------------------------------------------------------*/ ulong calc_fbsize (void) { ulong size; int line_length = ((unsigned int)panel_info.vl_col * (unsigned int)NBITS(panel_info.vl_bpix)) / 8; size = line_length * (unsigned int)panel_info.vl_row; size += PAGE_SIZE; return size; } #endif /* CONFIG_LCD */