2  * linux/arch/arm/mach-omap1/lcd_dma.c
4  * Extracted from arch/arm/plat-omap/dma.c
5  * Copyright (C) 2003 - 2008 Nokia Corporation
10  * OMAP2/3 support Copyright (C) 2004-2007 Texas Instruments, Inc.
12  * Some functions based on earlier dma-omap.c Copyright (C) 2001 RidgeRun, Inc.
15  * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
30 #include <linux/omap-dma.h>
56 	void (*callback)(u16 status, void *data);
63 	int mirror;  member
103 void omap_set_lcd_dma_b1_mirror(int mirror)  in omap_set_lcd_dma_b1_mirror()  argument
106 		printk(KERN_ERR "DMA mirror is not supported in 1510 mode\n");  in omap_set_lcd_dma_b1_mirror()
109 	lcd_dma.mirror = mirror;  in omap_set_lcd_dma_b1_mirror()
166 #define PIXSTEP(sx, sy, dx, dy) (PIXADDR(dx, dy) - PIXADDR(sx, sy) - es + 1)  in set_b1_regs()
170 		if (!lcd_dma.mirror) {  in set_b1_regs()
172 			bottom = PIXADDR(lcd_dma.xres - 1, lcd_dma.yres - 1);  in set_b1_regs()
179 			fi = PIXSTEP(lcd_dma.xres - 1, 0, 0, 1);  in set_b1_regs()
181 			top = PIXADDR(lcd_dma.xres - 1, 0);  in set_b1_regs()
182 			bottom = PIXADDR(0, lcd_dma.yres - 1);  in set_b1_regs()
184 			fi = PIXSTEP(0, 0, lcd_dma.xres - 1, 1);  in set_b1_regs()
190 		if (!lcd_dma.mirror) {  in set_b1_regs()
191 			top = PIXADDR(0, lcd_dma.yres - 1);  in set_b1_regs()
192 			bottom = PIXADDR(lcd_dma.xres - 1, 0);  in set_b1_regs()
194 			fi = PIXSTEP(0, 0, 1, lcd_dma.yres - 1);  in set_b1_regs()
196 			top = PIXADDR(lcd_dma.xres - 1, lcd_dma.yres - 1);  in set_b1_regs()
199 			fi = PIXSTEP(1, 0, 0, lcd_dma.yres - 1);  in set_b1_regs()
205 		if (!lcd_dma.mirror) {  in set_b1_regs()
206 			top = PIXADDR(lcd_dma.xres - 1, lcd_dma.yres - 1);  in set_b1_regs()
209 			fi = PIXSTEP(0, 1, lcd_dma.xres - 1, 0);  in set_b1_regs()
211 			top = PIXADDR(0, lcd_dma.yres - 1);  in set_b1_regs()
212 			bottom = PIXADDR(lcd_dma.xres - 1, 0);  in set_b1_regs()
214 			fi = PIXSTEP(lcd_dma.xres - 1, 1, 0, 0);  in set_b1_regs()
220 		if (!lcd_dma.mirror) {  in set_b1_regs()
221 			top = PIXADDR(lcd_dma.xres - 1, 0);  in set_b1_regs()
222 			bottom = PIXADDR(0, lcd_dma.yres - 1);  in set_b1_regs()
224 			fi = PIXSTEP(1, lcd_dma.yres - 1, 0, 0);  in set_b1_regs()
227 			bottom = PIXADDR(lcd_dma.xres - 1, lcd_dma.yres - 1);  in set_b1_regs()
229 			fi = PIXSTEP(0, lcd_dma.yres - 1, 1, 0);  in set_b1_regs()
271 	if (!(lcd_dma.rotate || lcd_dma.mirror ||  in set_b1_regs()
276 	/* Set the double-indexed addressing mode */  in set_b1_regs()
304 int omap_request_lcd_dma(void (*callback)(u16 status, void *data),  in omap_request_lcd_dma()  argument
305 			 void *data)  in omap_request_lcd_dma()
312 		return -EBUSY;  in omap_request_lcd_dma()
317 	lcd_dma.cb_data = data;  in omap_request_lcd_dma()
322 	lcd_dma.mirror = 0;  in omap_request_lcd_dma()
423 		return -ENODEV;  in omap_init_lcd_dma()