1 /* 2 * linux/drivers/video/sa1100fb.h 3 * -- StrongARM 1100 LCD Controller Frame Buffer Device 4 * 5 * Copyright (C) 1999 Eric A. Thomas 6 * Based on acornfb.c Copyright (C) Russell King. 7 * 8 * This file is subject to the terms and conditions of the GNU General Public 9 * License. See the file COPYING in the main directory of this archive 10 * for more details. 11 */ 12 13 struct gpio_desc; 14 15 #define LCCR0 0x0000 /* LCD Control Reg. 0 */ 16 #define LCSR 0x0004 /* LCD Status Reg. */ 17 #define DBAR1 0x0010 /* LCD DMA Base Address Reg. channel 1 */ 18 #define DCAR1 0x0014 /* LCD DMA Current Address Reg. channel 1 */ 19 #define DBAR2 0x0018 /* LCD DMA Base Address Reg. channel 2 */ 20 #define DCAR2 0x001C /* LCD DMA Current Address Reg. channel 2 */ 21 #define LCCR1 0x0020 /* LCD Control Reg. 1 */ 22 #define LCCR2 0x0024 /* LCD Control Reg. 2 */ 23 #define LCCR3 0x0028 /* LCD Control Reg. 3 */ 24 25 /* Shadows for LCD controller registers */ 26 struct sa1100fb_lcd_reg { 27 unsigned long lccr0; 28 unsigned long lccr1; 29 unsigned long lccr2; 30 unsigned long lccr3; 31 }; 32 33 struct sa1100fb_info { 34 struct fb_info fb; 35 struct device *dev; 36 const struct sa1100fb_rgb *rgb[NR_RGB]; 37 void __iomem *base; 38 struct gpio_desc *shannon_lcden; 39 40 /* 41 * These are the addresses we mapped 42 * the framebuffer memory region to. 43 */ 44 dma_addr_t map_dma; 45 u_char * map_cpu; 46 u_int map_size; 47 48 u_char * screen_cpu; 49 dma_addr_t screen_dma; 50 u16 * palette_cpu; 51 dma_addr_t palette_dma; 52 u_int palette_size; 53 54 dma_addr_t dbar1; 55 dma_addr_t dbar2; 56 57 u_int reg_lccr0; 58 u_int reg_lccr1; 59 u_int reg_lccr2; 60 u_int reg_lccr3; 61 62 volatile u_char state; 63 volatile u_char task_state; 64 struct mutex ctrlr_lock; 65 wait_queue_head_t ctrlr_wait; 66 struct work_struct task; 67 68 #ifdef CONFIG_CPU_FREQ 69 struct notifier_block freq_transition; 70 #endif 71 72 const struct sa1100fb_mach_info *inf; 73 struct clk *clk; 74 75 u32 pseudo_palette[16]; 76 }; 77 78 #define TO_INF(ptr,member) container_of(ptr,struct sa1100fb_info,member) 79 80 #define SA1100_PALETTE_MODE_VAL(bpp) (((bpp) & 0x018) << 9) 81 82 /* 83 * These are the actions for set_ctrlr_state 84 */ 85 #define C_DISABLE (0) 86 #define C_ENABLE (1) 87 #define C_DISABLE_CLKCHANGE (2) 88 #define C_ENABLE_CLKCHANGE (3) 89 #define C_REENABLE (4) 90 #define C_DISABLE_PM (5) 91 #define C_ENABLE_PM (6) 92 #define C_STARTUP (7) 93 94 #define SA1100_NAME "SA1100" 95 96 /* 97 * Minimum X and Y resolutions 98 */ 99 #define MIN_XRES 64 100 #define MIN_YRES 64 101 102