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openwrt/target/linux/s3c24xx/patches-2.6.26/0151-Subject-PATCH-Hardware-glamo-fb-cursor-some-clea.patch

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From 824fc22a0aaacf942eb3b3dfa6aad32c7285669f Mon Sep 17 00:00:00 2001
From: Andrzej Zaborowski <balrog@zabor.org>
Date: Fri, 25 Jul 2008 23:06:11 +0100
Subject: [PATCH] Subject: [PATCH] Hardware glamo-fb cursor, some clean-up.
---
drivers/mfd/glamo/glamo-fb.c | 105 +++++++++++++++++++++--------------------
include/linux/fb.h | 1 +
2 files changed, 55 insertions(+), 51 deletions(-)
diff --git a/drivers/mfd/glamo/glamo-fb.c b/drivers/mfd/glamo/glamo-fb.c
index edc6d9c..30cdb38 100644
--- a/drivers/mfd/glamo/glamo-fb.c
+++ b/drivers/mfd/glamo/glamo-fb.c
@@ -117,6 +117,8 @@ static struct glamo_script glamo_regs[] = {
* 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_CURSOR_BASE1, 0x0000 }, /* cursor base address 15:0 */
+ { GLAMO_REG_LCD_CURSOR_BASE2, 0x000f }, /* cursor base address 22:16 */
};
static int glamofb_run_script(struct glamofb_handle *glamo,
@@ -200,7 +202,6 @@ static int glamofb_check_var(struct fb_var_screeninfo *var,
printk(KERN_ERR
"Smedia driver does not [yet?] support 24/32bpp\n");
return -EINVAL;
- break;
}
return 0;
@@ -497,22 +498,19 @@ static int glamofb_setcolreg(unsigned regno,
return 0;
}
+#ifdef CONFIG_MFD_GLAMO_HWACCEL
static int glamofb_cursor(struct fb_info *info, struct fb_cursor *cursor)
{
struct glamofb_handle *glamo = info->par;
- u_int16_t reg;
+ unsigned long flags;
if (cursor->image.depth > 2)
return -EINVAL;
- reg = reg_read(glamo, GLAMO_REG_LCD_MODE1);
+ spin_lock_irqsave(&glamo->lock_cmd, flags);
- if (cursor->enable)
- reg_write(glamo, GLAMO_REG_LCD_MODE1,
- reg | GLAMO_LCD_MODE1_CURSOR_EN);
- else
- reg_write(glamo, GLAMO_REG_LCD_MODE1,
- reg & ~GLAMO_LCD_MODE1_CURSOR_EN);
+ reg_set_bit_mask(glamo, GLAMO_REG_LCD_MODE1,
+ GLAMO_LCD_MODE1_CURSOR_EN, 0);
if (cursor->set & FB_CUR_SETPOS) {
reg_write(glamo, GLAMO_REG_LCD_CURSOR_X_POS,
@@ -522,29 +520,36 @@ static int glamofb_cursor(struct fb_info *info, struct fb_cursor *cursor)
}
if (cursor->set & FB_CUR_SETCMAP) {
- /* FIXME */
+ uint16_t fg = cursor->image.fg_color;
+ uint16_t bg = cursor->image.bg_color;
+
+ reg_write(glamo, GLAMO_REG_LCD_CURSOR_FG_COLOR, fg);
+ reg_write(glamo, GLAMO_REG_LCD_CURSOR_BG_COLOR, bg);
+ reg_write(glamo, GLAMO_REG_LCD_CURSOR_DST_COLOR, bg);
}
- if (cursor->set & FB_CUR_SETSIZE ||
- cursor->set & (FB_CUR_SETIMAGE | FB_CUR_SETSHAPE)) {
- int x, y, op;
+ if (cursor->set & FB_CUR_SETHOT)
+ reg_write(glamo, GLAMO_REG_LCD_CURSOR_PRESET,
+ (cursor->hot.x << 8) | cursor->hot.y);
+
+ if ((cursor->set & FB_CUR_SETSIZE) ||
+ (cursor->set & (FB_CUR_SETIMAGE | FB_CUR_SETSHAPE))) {
+ int x, y, pitch;
const unsigned char *pcol = cursor->image.data;
const unsigned char *pmsk = cursor->mask;
void __iomem *dst = glamo->cursor_addr;
unsigned char dcol = 0;
unsigned char dmsk = 0;
+ unsigned char byte = 0;
+ pitch = (cursor->image.width + 3) >> 2;
reg_write(glamo, GLAMO_REG_LCD_CURSOR_X_SIZE,
cursor->image.width);
reg_write(glamo, GLAMO_REG_LCD_CURSOR_PITCH,
- cursor->image.width * 2);
+ pitch);
reg_write(glamo, GLAMO_REG_LCD_CURSOR_Y_SIZE,
cursor->image.height);
- for (op = 0; op < (cursor->image.width *
- cursor->image.height * 2)/8; op += 4)
- writel(0x0, dst + op);
-
for (y = 0; y < cursor->image.height; y++) {
for (x = 0; x < cursor->image.width; x++) {
if ((x % 8) == 0) {
@@ -559,15 +564,29 @@ static int glamofb_cursor(struct fb_info *info, struct fb_cursor *cursor)
unsigned int op;
op = (dcol & 1) ? 1 : 3;
- op <<= ((x % 4) * 2);
+ byte |= op << ((x % 4) * 2);
+ }
- op |= readb(dst + (x / 4));
- writeb(op, dst + (x / 4));
+ if ((x % 4) == 0) {
+ writeb(byte, dst + x / 4);
+ byte = 0;
}
}
+
+ dst += pitch;
}
}
+
+ if (cursor->enable)
+ reg_set_bit_mask(glamo, GLAMO_REG_LCD_MODE1,
+ GLAMO_LCD_MODE1_CURSOR_EN,
+ GLAMO_LCD_MODE1_CURSOR_EN);
+
+ spin_unlock_irqrestore(&glamo->lock_cmd, flags);
+
+ return 0;
}
+#endif
static inline int glamofb_cmdq_empty(struct glamofb_handle *gfb)
{
@@ -576,15 +595,14 @@ static inline int glamofb_cmdq_empty(struct glamofb_handle *gfb)
}
/* call holding gfb->lock_cmd when locking, until you unlock */
-
int glamofb_cmd_mode(struct glamofb_handle *gfb, int on)
{
int timeout = 200000;
-/* dev_dbg(gfb->dev, "glamofb_cmd_mode(gfb=%p, on=%d)\n", gfb, on); */
+ dev_dbg(gfb->dev, "glamofb_cmd_mode(gfb=%p, on=%d)\n", gfb, on);
if (on) {
-/* dev_dbg(gfb->dev, "%s: waiting for cmdq empty: ",
- __FUNCTION__); */
+ dev_dbg(gfb->dev, "%s: waiting for cmdq empty: ",
+ __FUNCTION__);
while ((!glamofb_cmdq_empty(gfb)) && (timeout--))
yield();
if (timeout < 0) {
@@ -593,7 +611,7 @@ int glamofb_cmd_mode(struct glamofb_handle *gfb, int on)
"*************\n");
return -EIO;
}
-/* dev_dbg(gfb->dev, "empty!\n"); */
+ dev_dbg(gfb->dev, "empty!\n");
/* display the entire frame then switch to command */
reg_write(gfb, GLAMO_REG_LCD_COMMAND1,
@@ -601,7 +619,7 @@ int glamofb_cmd_mode(struct glamofb_handle *gfb, int on)
GLAMO_LCD_CMD_DATA_FIRE_VSYNC);
/* wait until LCD is idle */
-/* dev_dbg(gfb->dev, "waiting for LCD idle: "); */
+ dev_dbg(gfb->dev, "waiting for LCD idle: ");
timeout = 200000;
while ((!reg_read(gfb, GLAMO_REG_LCD_STATUS2) & (1 << 12)) &&
(timeout--))
@@ -612,7 +630,7 @@ int glamofb_cmd_mode(struct glamofb_handle *gfb, int on)
"*************\n");
return -EIO;
}
-/* dev_dbg(gfb->dev, "idle!\n"); */
+ dev_dbg(gfb->dev, "idle!\n");
mdelay(100);
} else {
@@ -635,8 +653,7 @@ int glamofb_cmd_write(struct glamofb_handle *gfb, u_int16_t val)
{
int timeout = 200000;
-/* dev_dbg(gfb->dev, "%s: waiting for cmdq empty\n",
- __FUNCTION__); */
+ dev_dbg(gfb->dev, "%s: waiting for cmdq empty\n", __FUNCTION__);
while ((!glamofb_cmdq_empty(gfb)) && (timeout--))
yield();
if (timeout < 0) {
@@ -645,7 +662,7 @@ int glamofb_cmd_write(struct glamofb_handle *gfb, u_int16_t val)
"*************\n");
return 1;
}
-/* dev_dbg(gfb->dev, "idle, writing 0x%04x\n", val); */
+ dev_dbg(gfb->dev, "idle, writing 0x%04x\n", val);
reg_write(gfb, GLAMO_REG_LCD_COMMAND1, val);
@@ -659,7 +676,9 @@ static struct fb_ops glamofb_ops = {
.fb_set_par = glamofb_set_par,
.fb_blank = glamofb_blank,
.fb_setcolreg = glamofb_setcolreg,
- //.fb_cursor = glamofb_cursor,
+#ifdef CONFIG_MFD_GLAMO_HWACCEL
+ .fb_cursor = glamofb_cursor,
+#endif
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
@@ -743,6 +762,7 @@ static int __init glamofb_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "failed to ioremap() vram memory\n");
goto out_release_fb;
}
+ glamofb->cursor_addr = fbinfo->screen_base + 0xf0000;
platform_set_drvdata(pdev, fbinfo);
@@ -754,13 +774,13 @@ static int __init glamofb_probe(struct platform_device *pdev)
fbinfo->fix.xpanstep = 0;
fbinfo->fix.ypanstep = 0;
fbinfo->fix.ywrapstep = 0;
- fbinfo->fix.accel = FB_ACCEL_NONE; /* FIXME */
+ fbinfo->fix.accel = FB_ACCEL_GLAMO;
fbinfo->var.nonstd = 0;
fbinfo->var.activate = FB_ACTIVATE_NOW;
fbinfo->var.height = mach_info->height;
fbinfo->var.width = mach_info->width;
- fbinfo->var.accel_flags = 0;
+ fbinfo->var.accel_flags = 0; /* FIXME */
fbinfo->var.vmode = FB_VMODE_NONINTERLACED;
fbinfo->fbops = &glamofb_ops;
@@ -833,26 +853,9 @@ static int glamofb_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM
-static int glamofb_suspend(struct platform_device *pdev, pm_message_t state)
-{
- return 0;
-}
-
-static int glamofb_resume(struct platform_device *pdev)
-{
- return 0;
-}
-#else
-#define glamofb_suspend NULL
-#define glamofb_resume NULL
-#endif
-
static struct platform_driver glamofb_driver = {
.probe = glamofb_probe,
.remove = glamofb_remove,
- .suspend = glamofb_suspend,
- .resume = glamofb_resume,
.driver = {
.name = "glamo-fb",
.owner = THIS_MODULE,
diff --git a/include/linux/fb.h b/include/linux/fb.h
index 72295b0..1df1225 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -120,6 +120,7 @@ struct dentry;
#define FB_ACCEL_XGI_VOLARI_V 47 /* XGI Volari V3XT, V5, V8 */
#define FB_ACCEL_XGI_VOLARI_Z 48 /* XGI Volari Z7 */
#define FB_ACCEL_OMAP1610 49 /* TI OMAP16xx */
+#define FB_ACCEL_GLAMO 50 /* SMedia Glamo */
#define FB_ACCEL_NEOMAGIC_NM2070 90 /* NeoMagic NM2070 */
#define FB_ACCEL_NEOMAGIC_NM2090 91 /* NeoMagic NM2090 */
#define FB_ACCEL_NEOMAGIC_NM2093 92 /* NeoMagic NM2093 */
--
1.5.6.3
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