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https://github.com/edk2-porting/linux-next.git
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7cb66dcc82
Convert the sa11x0 framebuffer driver to obtain the base address of its hardware registers from the platform resources, and ioremap this rather than relying on the static mappings. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
97 lines
2.4 KiB
C
97 lines
2.4 KiB
C
/*
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* linux/drivers/video/sa1100fb.h
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* -- StrongARM 1100 LCD Controller Frame Buffer Device
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*
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* Copyright (C) 1999 Eric A. Thomas
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* Based on acornfb.c Copyright (C) Russell King.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive
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* for more details.
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*/
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#define LCCR0 0x0000 /* LCD Control Reg. 0 */
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#define LCSR 0x0004 /* LCD Status Reg. */
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#define DBAR1 0x0010 /* LCD DMA Base Address Reg. channel 1 */
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#define DCAR1 0x0014 /* LCD DMA Current Address Reg. channel 1 */
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#define DBAR2 0x0018 /* LCD DMA Base Address Reg. channel 2 */
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#define DCAR2 0x001C /* LCD DMA Current Address Reg. channel 2 */
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#define LCCR1 0x0020 /* LCD Control Reg. 1 */
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#define LCCR2 0x0024 /* LCD Control Reg. 2 */
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#define LCCR3 0x0028 /* LCD Control Reg. 3 */
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/* Shadows for LCD controller registers */
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struct sa1100fb_lcd_reg {
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unsigned long lccr0;
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unsigned long lccr1;
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unsigned long lccr2;
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unsigned long lccr3;
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};
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struct sa1100fb_info {
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struct fb_info fb;
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struct device *dev;
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const struct sa1100fb_rgb *rgb[NR_RGB];
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void __iomem *base;
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/*
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* These are the addresses we mapped
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* the framebuffer memory region to.
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*/
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dma_addr_t map_dma;
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u_char * map_cpu;
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u_int map_size;
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u_char * screen_cpu;
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dma_addr_t screen_dma;
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u16 * palette_cpu;
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dma_addr_t palette_dma;
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u_int palette_size;
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dma_addr_t dbar1;
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dma_addr_t dbar2;
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u_int reg_lccr0;
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u_int reg_lccr1;
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u_int reg_lccr2;
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u_int reg_lccr3;
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volatile u_char state;
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volatile u_char task_state;
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struct mutex ctrlr_lock;
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wait_queue_head_t ctrlr_wait;
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struct work_struct task;
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#ifdef CONFIG_CPU_FREQ
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struct notifier_block freq_transition;
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struct notifier_block freq_policy;
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#endif
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const struct sa1100fb_mach_info *inf;
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};
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#define TO_INF(ptr,member) container_of(ptr,struct sa1100fb_info,member)
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#define SA1100_PALETTE_MODE_VAL(bpp) (((bpp) & 0x018) << 9)
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/*
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* These are the actions for set_ctrlr_state
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*/
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#define C_DISABLE (0)
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#define C_ENABLE (1)
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#define C_DISABLE_CLKCHANGE (2)
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#define C_ENABLE_CLKCHANGE (3)
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#define C_REENABLE (4)
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#define C_DISABLE_PM (5)
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#define C_ENABLE_PM (6)
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#define C_STARTUP (7)
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#define SA1100_NAME "SA1100"
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/*
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* Minimum X and Y resolutions
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*/
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#define MIN_XRES 64
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#define MIN_YRES 64
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