clcd.c
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#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/amba/bus.h>
#include <linux/amba/clcd.h>
#include <plat/clcd.h>
static struct clcd_panel vga = {
.mode = {
.name = "VGA",
.refresh = 60,
.xres = 640,
.yres = 480,
.pixclock = 39721,
.left_margin = 40,
.right_margin = 24,
.upper_margin = 32,
.lower_margin = 11,
.hsync_len = 96,
.vsync_len = 2,
.sync = 0,
.vmode = FB_VMODE_NONINTERLACED,
},
.width = -1,
.height = -1,
.tim2 = TIM2_BCD | TIM2_IPC,
.cntl = CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
.caps = CLCD_CAP_5551 | CLCD_CAP_565 | CLCD_CAP_888,
.bpp = 16,
};
static struct clcd_panel xvga = {
.mode = {
.name = "XVGA",
.refresh = 60,
.xres = 1024,
.yres = 768,
.pixclock = 15748,
.left_margin = 152,
.right_margin = 48,
.upper_margin = 23,
.lower_margin = 3,
.hsync_len = 104,
.vsync_len = 4,
.sync = 0,
.vmode = FB_VMODE_NONINTERLACED,
},
.width = -1,
.height = -1,
.tim2 = TIM2_BCD | TIM2_IPC,
.cntl = CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
.caps = CLCD_CAP_5551 | CLCD_CAP_565 | CLCD_CAP_888,
.bpp = 16,
};
/* Sanyo TM38QV67A02A - 3.8 inch QVGA (320x240) Color TFT */
static struct clcd_panel sanyo_tm38qv67a02a = {
.mode = {
.name = "Sanyo TM38QV67A02A",
.refresh = 116,
.xres = 320,
.yres = 240,
.pixclock = 100000,
.left_margin = 6,
.right_margin = 6,
.upper_margin = 5,
.lower_margin = 5,
.hsync_len = 6,
.vsync_len = 6,
.sync = 0,
.vmode = FB_VMODE_NONINTERLACED,
},
.width = -1,
.height = -1,
.tim2 = TIM2_BCD,
.cntl = CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
.caps = CLCD_CAP_5551,
.bpp = 16,
};
static struct clcd_panel sanyo_2_5_in = {
.mode = {
.name = "Sanyo QVGA Portrait",
.refresh = 116,
.xres = 240,
.yres = 320,
.pixclock = 100000,
.left_margin = 20,
.right_margin = 10,
.upper_margin = 2,
.lower_margin = 2,
.hsync_len = 10,
.vsync_len = 2,
.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
.vmode = FB_VMODE_NONINTERLACED,
},
.width = -1,
.height = -1,
.tim2 = TIM2_IVS | TIM2_IHS | TIM2_IPC,
.cntl = CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
.caps = CLCD_CAP_5551,
.bpp = 16,
};
/* Epson L2F50113T00 - 2.2 inch 176x220 Color TFT */
static struct clcd_panel epson_l2f50113t00 = {
.mode = {
.name = "Epson L2F50113T00",
.refresh = 390,
.xres = 176,
.yres = 220,
.pixclock = 62500,
.left_margin = 3,
.right_margin = 2,
.upper_margin = 1,
.lower_margin = 0,
.hsync_len = 3,
.vsync_len = 2,
.sync = 0,
.vmode = FB_VMODE_NONINTERLACED,
},
.width = -1,
.height = -1,
.tim2 = TIM2_BCD | TIM2_IPC,
.cntl = CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
.caps = CLCD_CAP_5551,
.bpp = 16,
};
static struct clcd_panel *panels[] = {
&vga,
&xvga,
&sanyo_tm38qv67a02a,
&sanyo_2_5_in,
&epson_l2f50113t00,
};
struct clcd_panel *versatile_clcd_get_panel(const char *name)
{
int i;
for (i = 0; i < ARRAY_SIZE(panels); i++)
if (strcmp(panels[i]->mode.name, name) == 0)
break;
if (i < ARRAY_SIZE(panels))
return panels[i];
pr_err("CLCD: couldn't get parameters for panel %s\n", name);
return NULL;
}
int versatile_clcd_setup_dma(struct clcd_fb *fb, unsigned long framesize)
{
dma_addr_t dma;
fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, framesize,
&dma, GFP_KERNEL);
if (!fb->fb.screen_base) {
pr_err("CLCD: unable to map framebuffer\n");
return -ENOMEM;
}
fb->fb.fix.smem_start = dma;
fb->fb.fix.smem_len = framesize;
return 0;
}
int versatile_clcd_mmap_dma(struct clcd_fb *fb, struct vm_area_struct *vma)
{
return dma_mmap_writecombine(&fb->dev->dev, vma,
fb->fb.screen_base,
fb->fb.fix.smem_start,
fb->fb.fix.smem_len);
}
void versatile_clcd_remove_dma(struct clcd_fb *fb)
{
dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,
fb->fb.screen_base, fb->fb.fix.smem_start);
}