[PATCH 2/4] fbset support
Chia-I Wu
olv at openmoko.com
Wed Dec 5 15:18:38 CET 2007
This is a multi-part message in MIME format.
--------------1.5.3.1
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Move modeline setting to a function of itself. Call this function on
initialization and set_par.
Signed-off-by: Chia-I Wu <olv at openmoko.com>
---
drivers/video/glamo/glamo-fb.c | 103 +++++++++++++++++++++++++---------------
1 files changed, 65 insertions(+), 38 deletions(-)
--------------1.5.3.1
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diff --git a/drivers/video/glamo/glamo-fb.c b/drivers/video/glamo/glamo-fb.c
index 451de75..3a102e4 100644
--- a/drivers/video/glamo/glamo-fb.c
+++ b/drivers/video/glamo/glamo-fb.c
@@ -99,25 +99,12 @@ static struct glamo_script glamo_regs[] = {
{ GLAMO_REG_LCD_MODE3, 0x0b40 },
/* src data rgb565, res, 18bit rgb666
* 000 01 011 0100 0000 */
- { GLAMO_REG_LCD_WIDTH, 480 },
- { GLAMO_REG_LCD_HEIGHT, 640 },
{ GLAMO_REG_LCD_POLARITY, 0x440c },
/* DE high active, no cpu/lcd if, cs0 force low, a0 low active,
* np cpu if, 9bit serial data, sclk rising edge latch data
* 01 00 0 100 0 000 01 0 0 */
{ GLAMO_REG_LCD_A_BASE1, 0x0000 }, /* display A base address 15:0 */
{ GLAMO_REG_LCD_A_BASE2, 0x0000 }, /* display A base address 22:16 */
- { GLAMO_REG_LCD_PITCH, 480*2 },
- { GLAMO_REG_LCD_HORIZ_TOTAL, 480 + 8 + 8 + 104 }, /* 600 */
- { GLAMO_REG_LCD_HORIZ_RETR_START, 0 },
- { GLAMO_REG_LCD_HORIZ_RETR_END, 8 },
- { GLAMO_REG_LCD_HORIZ_DISP_START, 8 + 104 },
- { GLAMO_REG_LCD_HORIZ_DISP_END, 8 + 104 + 480 },
- { GLAMO_REG_LCD_VERT_TOTAL, 640 + 2 + 2 + 16 }, /* 660 */
- { GLAMO_REG_LCD_VERT_RETR_START, 0 },
- { GLAMO_REG_LCD_VERT_RETR_END, 2 },
- { GLAMO_REG_LCD_VERT_DISP_START, 2 + 2 },
- { GLAMO_REG_LCD_VERT_DISP_END, 2 + 2 + 640 },
};
static int glamofb_run_script(struct glamofb_handle *glamo,
@@ -207,24 +194,64 @@ static int glamofb_check_var(struct fb_var_screeninfo *var,
return 0;
}
+static void glamofb_activate_var(struct glamofb_handle *glamo,
+ struct fb_var_screeninfo *var)
+{
+ int sync, bp, disp, fp, total;
+
+ glamofb_cmd_mode(glamo, 1);
+
+ /* XXX highest bits of the following two regs have other meanings */
+ reg_write(glamo, GLAMO_REG_LCD_WIDTH, var->xres);
+ reg_write(glamo, GLAMO_REG_LCD_HEIGHT, var->yres);
+ reg_write(glamo, GLAMO_REG_LCD_PITCH,
+ (var->xres * var->bits_per_pixel) / 8);
+
+ sync = 0;
+ bp = sync + var->hsync_len;
+ disp = bp + var->left_margin;
+ fp = disp + var->xres;
+ total = fp + var->right_margin;
+
+ reg_write(glamo, GLAMO_REG_LCD_HORIZ_TOTAL, total);
+ reg_write(glamo, GLAMO_REG_LCD_HORIZ_RETR_START, sync);
+ reg_write(glamo, GLAMO_REG_LCD_HORIZ_RETR_END, bp);
+ reg_write(glamo, GLAMO_REG_LCD_HORIZ_DISP_START, disp);
+ reg_write(glamo, GLAMO_REG_LCD_HORIZ_DISP_END, fp);
+
+ sync = 0;
+ bp = sync + var->vsync_len;
+ disp = bp + var->upper_margin;
+ fp = disp + var->yres;
+ total = fp + var->lower_margin;
+
+ reg_write(glamo, GLAMO_REG_LCD_VERT_TOTAL, total);
+ reg_write(glamo, GLAMO_REG_LCD_VERT_RETR_START, sync);
+ reg_write(glamo, GLAMO_REG_LCD_VERT_RETR_END, bp);
+ reg_write(glamo, GLAMO_REG_LCD_VERT_DISP_START, disp);
+ reg_write(glamo, GLAMO_REG_LCD_VERT_DISP_END, fp);
+
+ glamofb_cmd_mode(glamo, 0);
+}
+
static int glamofb_set_par(struct fb_info *info)
{
struct glamofb_handle *glamo = info->par;
struct fb_var_screeninfo *var = &info->var;
- /* FIXME */
-
switch (var->bits_per_pixel) {
case 16:
- glamo->fb->fix.visual = FB_VISUAL_TRUECOLOR;
+ info->fix.visual = FB_VISUAL_TRUECOLOR;
break;
default:
printk("Smedia driver doens't support != 16bpp\n");
return -EINVAL;
}
- glamo->fb->fix.line_length = (var->width * var->bits_per_pixel) / 8;
- glamo->fb->fix.smem_len = info->fix.line_length * var->yres_virtual;
+ info->fix.line_length = (var->xres * var->bits_per_pixel) / 8;
+ info->fix.smem_len = info->fix.line_length * var->yres_virtual;
+
+ glamofb_activate_var(glamo, var);
return 0;
}
@@ -384,7 +411,6 @@ EXPORT_SYMBOL_GPL(glamofb_cmd_mode);
int glamofb_cmd_write(struct glamofb_handle *gfb, u_int16_t val)
{
-
dev_dbg(gfb->dev, "%s: waiting for cmdq empty\n",
__FUNCTION__);
while (!glamofb_cmdq_empty(gfb))
@@ -409,6 +435,18 @@ static struct fb_ops glamofb_ops = {
.fb_imageblit = cfb_imageblit,
};
+static int glamofb_init_regs(struct glamofb_handle *glamo)
+{
+ struct fb_info *info = glamo->fb;
+ struct fb_var_screeninfo *var = &info->var;
+
+ glamofb_check_var(&info->var, info);
+ glamofb_run_script(glamo, glamo_regs, ARRAY_SIZE(glamo_regs));
+ glamofb_set_par(info);
+
+ return 0;
+}
+
static int __init glamofb_probe(struct platform_device *pdev)
{
int rc = -EIO;
@@ -504,24 +542,14 @@ static int __init glamofb_probe(struct platform_device *pdev)
fbinfo->var.yres_virtual = mach_info->yres.defval;
fbinfo->var.bits_per_pixel = mach_info->bpp.defval;
-#if 0
- fbinfo->var.upper_margin =
- fbinfo->var.lower_margin =
- fbinfo->var.vsync_len = 2;
-
- fbinfo->var.left_margin =
- fbinfo->var.right_margin =
- fbinfo->var.hsync_len = 8;
-#endif
+ fbinfo->var.pixclock = mach_info->pixclock;
+ fbinfo->var.left_margin = mach_info->left_margin;
+ fbinfo->var.right_margin = mach_info->right_margin;
+ fbinfo->var.upper_margin = mach_info->upper_margin;
+ fbinfo->var.lower_margin = mach_info->lower_margin;
+ fbinfo->var.hsync_len = mach_info->hsync_len;
+ fbinfo->var.vsync_len = mach_info->vsync_len;
- fbinfo->var.red.offset = 11;
- fbinfo->var.green.offset = 5;
- fbinfo->var.blue.offset = 0;
- fbinfo->var.transp.offset = 0;
- fbinfo->var.red.length = 5;
- fbinfo->var.green.length = 6;
- fbinfo->var.blue.length = 5;
- fbinfo->var.transp.length = 0;
fbinfo->fix.smem_len = mach_info->xres.max *
mach_info->yres.max *
mach_info->bpp.max / 8;
@@ -530,8 +558,7 @@ static int __init glamofb_probe(struct platform_device *pdev)
glamo_engine_enable(mach_info->glamo, GLAMO_ENGINE_LCD);
glamo_engine_reset(mach_info->glamo, GLAMO_ENGINE_LCD);
- glamofb_run_script(glamofb, glamo_regs, ARRAY_SIZE(glamo_regs));
- glamofb_cmd_mode(glamofb, 0);
+ glamofb_init_regs(glamofb);
rc = register_framebuffer(fbinfo);
if (rc < 0) {
--------------1.5.3.1--
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