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fb: add support of LCD display controller on pxa168/910 (base layer)

Browse source 
This driver is originally written by Lennert, modified by Green to be
feature complete,  and ported by Jun Nie and Kevin Liu for pxa168/910
processors.

The patch adds support for the on-chip LCD display controller, it
currently supports the base (graphics) layer only.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Green Wan <gwan@marvell.com>
Cc: Peter Liao <pliao@marvell.com>
Signed-off-by: Jun Nie <njun@marvell.com>
Signed-off-by: Kevin Liu <kliu5@marvell.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
This commit is contained in:
Lennert Buytenhek 2009-02-11 17:25:24 +08:00 committed by Eric Miao
parent 51cdd9289d
commit 638772c755
5 changed files with 1499 additions and 0 deletions
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10
drivers/video/Kconfig
View file

@ -1759,6 +1759,16 @@ config FB_68328
Say Y here if you want to support the built-in frame buffer of
the Motorola 68328 CPU family.
config FB_PXA168
tristate "PXA168/910 LCD framebuffer support"
depends on FB && (CPU_PXA168 || CPU_PXA910)
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
---help---
Frame buffer driver for the built-in LCD controller in the Marvell
MMP processor.
config FB_PXA
tristate "PXA LCD framebuffer support"
depends on FB && ARCH_PXA

1
drivers/video/Makefile
View file

@ -97,6 +97,7 @@ obj-$(CONFIG_FB_GBE) += gbefb.o
obj-$(CONFIG_FB_CIRRUS) += cirrusfb.o
obj-$(CONFIG_FB_ASILIANT) += asiliantfb.o
obj-$(CONFIG_FB_PXA) += pxafb.o
obj-$(CONFIG_FB_PXA168) += pxa168fb.o
obj-$(CONFIG_FB_W100) += w100fb.o
obj-$(CONFIG_FB_TMIO) += tmiofb.o
obj-$(CONFIG_FB_AU1100) += au1100fb.o

803
drivers/video/pxa168fb.c Normal file
View file

@ -0,0 +1,803 @@
/*
* linux/drivers/video/pxa168fb.c -- Marvell PXA168 LCD Controller
*
* Copyright (C) 2008 Marvell International Ltd.
* All rights reserved.
*
* 2009-02-16 adapted from original version for PXA168/910
* Jun Nie <njun@marvell.com>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
* more details.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/fb.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/uaccess.h>
#include <video/pxa168fb.h>
#include "pxa168fb.h"
#define DEFAULT_REFRESH 60 /* Hz */
static int determine_best_pix_fmt(struct fb_var_screeninfo *var)
{
/*
* Pseudocolor mode?
*/
if (var->bits_per_pixel == 8)
return PIX_FMT_PSEUDOCOLOR;
/*
* Check for 565/1555.
*/
if (var->bits_per_pixel == 16 && var->red.length <= 5 &&
var->green.length <= 6 && var->blue.length <= 5) {
if (var->transp.length == 0) {
if (var->red.offset >= var->blue.offset)
return PIX_FMT_RGB565;
else
return PIX_FMT_BGR565;
}
if (var->transp.length == 1 && var->green.length <= 5) {
if (var->red.offset >= var->blue.offset)
return PIX_FMT_RGB1555;
else
return PIX_FMT_BGR1555;
}
/* fall through */
}
/*
* Check for 888/A888.
*/
if (var->bits_per_pixel <= 32 && var->red.length <= 8 &&
var->green.length <= 8 && var->blue.length <= 8) {
if (var->bits_per_pixel == 24 && var->transp.length == 0) {
if (var->red.offset >= var->blue.offset)
return PIX_FMT_RGB888PACK;
else
return PIX_FMT_BGR888PACK;
}
if (var->bits_per_pixel == 32 && var->transp.length == 8) {
if (var->red.offset >= var->blue.offset)
return PIX_FMT_RGBA888;
else
return PIX_FMT_BGRA888;
} else {
if (var->red.offset >= var->blue.offset)
return PIX_FMT_RGB888UNPACK;
else
return PIX_FMT_BGR888UNPACK;
}
/* fall through */
}
return -EINVAL;
}
static void set_pix_fmt(struct fb_var_screeninfo *var, int pix_fmt)
{
switch (pix_fmt) {
case PIX_FMT_RGB565:
var->bits_per_pixel = 16;
var->red.offset = 11; var->red.length = 5;
var->green.offset = 5; var->green.length = 6;
var->blue.offset = 0; var->blue.length = 5;
var->transp.offset = 0; var->transp.length = 0;
break;
case PIX_FMT_BGR565:
var->bits_per_pixel = 16;
var->red.offset = 0; var->red.length = 5;
var->green.offset = 5; var->green.length = 6;
var->blue.offset = 11; var->blue.length = 5;
var->transp.offset = 0; var->transp.length = 0;
break;
case PIX_FMT_RGB1555:
var->bits_per_pixel = 16;
var->red.offset = 10; var->red.length = 5;
var->green.offset = 5; var->green.length = 5;
var->blue.offset = 0; var->blue.length = 5;
var->transp.offset = 15; var->transp.length = 1;
break;
case PIX_FMT_BGR1555:
var->bits_per_pixel = 16;
var->red.offset = 0; var->red.length = 5;
var->green.offset = 5; var->green.length = 5;
var->blue.offset = 10; var->blue.length = 5;
var->transp.offset = 15; var->transp.length = 1;
break;
case PIX_FMT_RGB888PACK:
var->bits_per_pixel = 24;
var->red.offset = 16; var->red.length = 8;
var->green.offset = 8; var->green.length = 8;
var->blue.offset = 0; var->blue.length = 8;
var->transp.offset = 0; var->transp.length = 0;
break;
case PIX_FMT_BGR888PACK:
var->bits_per_pixel = 24;
var->red.offset = 0; var->red.length = 8;
var->green.offset = 8; var->green.length = 8;
var->blue.offset = 16; var->blue.length = 8;
var->transp.offset = 0; var->transp.length = 0;
break;
case PIX_FMT_RGBA888:
var->bits_per_pixel = 32;
var->red.offset = 16; var->red.length = 8;
var->green.offset = 8; var->green.length = 8;
var->blue.offset = 0; var->blue.length = 8;
var->transp.offset = 24; var->transp.length = 8;
break;
case PIX_FMT_BGRA888:
var->bits_per_pixel = 32;
var->red.offset = 0; var->red.length = 8;
var->green.offset = 8; var->green.length = 8;
var->blue.offset = 16; var->blue.length = 8;
var->transp.offset = 24; var->transp.length = 8;
break;
case PIX_FMT_PSEUDOCOLOR:
var->bits_per_pixel = 8;
var->red.offset = 0; var->red.length = 8;
var->green.offset = 0; var->green.length = 8;
var->blue.offset = 0; var->blue.length = 8;
var->transp.offset = 0; var->transp.length = 0;
break;
}
}
static void set_mode(struct pxa168fb_info *fbi, struct fb_var_screeninfo *var,
struct fb_videomode *mode, int pix_fmt, int ystretch)
{
struct fb_info *info = fbi->info;
set_pix_fmt(var, pix_fmt);
var->xres = mode->xres;
var->yres = mode->yres;
var->xres_virtual = max(var->xres, var->xres_virtual);
if (ystretch)
var->yres_virtual = info->fix.smem_len /
(var->xres_virtual * (var->bits_per_pixel >> 3));
else
var->yres_virtual = max(var->yres, var->yres_virtual);
var->grayscale = 0;
var->accel_flags = FB_ACCEL_NONE;
var->pixclock = mode->pixclock;
var->left_margin = mode->left_margin;
var->right_margin = mode->right_margin;
var->upper_margin = mode->upper_margin;
var->lower_margin = mode->lower_margin;
var->hsync_len = mode->hsync_len;
var->vsync_len = mode->vsync_len;
var->sync = mode->sync;
var->vmode = FB_VMODE_NONINTERLACED;
var->rotate = FB_ROTATE_UR;
}
static int pxa168fb_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct pxa168fb_info *fbi = info->par;
int pix_fmt;
/*
* Determine which pixel format we're going to use.
*/
pix_fmt = determine_best_pix_fmt(var);
if (pix_fmt < 0)
return pix_fmt;
set_pix_fmt(var, pix_fmt);
fbi->pix_fmt = pix_fmt;
/*
* Basic geometry sanity checks.
*/
if (var->xoffset + var->xres > var->xres_virtual)
return -EINVAL;
if (var->yoffset + var->yres > var->yres_virtual)
return -EINVAL;
if (var->xres + var->right_margin +
var->hsync_len + var->left_margin > 2048)
return -EINVAL;
if (var->yres + var->lower_margin +
var->vsync_len + var->upper_margin > 2048)
return -EINVAL;
/*
* Check size of framebuffer.
*/
if (var->xres_virtual * var->yres_virtual *
(var->bits_per_pixel >> 3) > info->fix.smem_len)
return -EINVAL;
return 0;
}
/*
* The hardware clock divider has an integer and a fractional
* stage:
*
* clk2 = clk_in / integer_divider
* clk_out = clk2 * (1 - (fractional_divider >> 12))
*
* Calculate integer and fractional divider for given clk_in
* and clk_out.
*/
static void set_clock_divider(struct pxa168fb_info *fbi,
const struct fb_videomode *m)
{
int divider_int;
int needed_pixclk;
u64 div_result;
u32 x = 0;
/*
* Notice: The field pixclock is used by linux fb
* is in pixel second. E.g. struct fb_videomode &
* struct fb_var_screeninfo
*/
/*
* Check input values.
*/
if (!m || !m->pixclock || !m->refresh) {
dev_err(fbi->dev, "Input refresh or pixclock is wrong.\n");
return;
}
/*
* Using PLL/AXI clock.
*/
x = 0x80000000;
/*
* Calc divider according to refresh rate.
*/
div_result = 1000000000000ll;
do_div(div_result, m->pixclock);
needed_pixclk = (u32)div_result;
divider_int = clk_get_rate(fbi->clk) / needed_pixclk;
/* check whether divisor is too small. */
if (divider_int < 2) {
dev_warn(fbi->dev, "Warning: clock source is too slow."
"Try smaller resolution\n");
divider_int = 2;
}
/*
* Set setting to reg.
*/
x |= divider_int;
writel(x, fbi->reg_base + LCD_CFG_SCLK_DIV);
}
static void set_dma_control0(struct pxa168fb_info *fbi)
{
u32 x;
/*
* Set bit to enable graphics DMA.
*/
x = readl(fbi->reg_base + LCD_SPU_DMA_CTRL0);
x |= fbi->active ? 0x00000100 : 0;
fbi->active = 0;
/*
* If we are in a pseudo-color mode, we need to enable
* palette lookup.
*/
if (fbi->pix_fmt == PIX_FMT_PSEUDOCOLOR)
x |= 0x10000000;
/*
* Configure hardware pixel format.
*/
x &= ~(0xF << 16);
x |= (fbi->pix_fmt >> 1) << 16;
/*
* Check red and blue pixel swap.
* 1. source data swap
* 2. panel output data swap
*/
x &= ~(1 << 12);
x |= ((fbi->pix_fmt & 1) ^ (fbi->panel_rbswap)) << 12;
writel(x, fbi->reg_base + LCD_SPU_DMA_CTRL0);
}
static void set_dma_control1(struct pxa168fb_info *fbi, int sync)
{
u32 x;
/*
* Configure default bits: vsync triggers DMA, gated clock
* enable, power save enable, configure alpha registers to
* display 100% graphics, and set pixel command.
*/
x = readl(fbi->reg_base + LCD_SPU_DMA_CTRL1);
x |= 0x2032ff81;
/*
* We trigger DMA on the falling edge of vsync if vsync is
* active low, or on the rising edge if vsync is active high.
*/
if (!(sync & FB_SYNC_VERT_HIGH_ACT))
x |= 0x08000000;
writel(x, fbi->reg_base + LCD_SPU_DMA_CTRL1);
}
static void set_graphics_start(struct fb_info *info, int xoffset, int yoffset)
{
struct pxa168fb_info *fbi = info->par;
struct fb_var_screeninfo *var = &info->var;
int pixel_offset;
unsigned long addr;
pixel_offset = (yoffset * var->xres_virtual) + xoffset;
addr = fbi->fb_start_dma + (pixel_offset * (var->bits_per_pixel >> 3));
writel(addr, fbi->reg_base + LCD_CFG_GRA_START_ADDR0);
}
static void set_dumb_panel_control(struct fb_info *info)
{
struct pxa168fb_info *fbi = info->par;
struct pxa168fb_mach_info *mi = fbi->dev->platform_data;
u32 x;
/*
* Preserve enable flag.
*/
x = readl(fbi->reg_base + LCD_SPU_DUMB_CTRL) & 0x00000001;
x |= (fbi->is_blanked ? 0x7 : mi->dumb_mode) << 28;
x |= mi->gpio_output_data << 20;
x |= mi->gpio_output_mask << 12;
x |= mi->panel_rgb_reverse_lanes ? 0x00000080 : 0;
x |= mi->invert_composite_blank ? 0x00000040 : 0;
x |= (info->var.sync & FB_SYNC_COMP_HIGH_ACT) ? 0x00000020 : 0;
x |= mi->invert_pix_val_ena ? 0x00000010 : 0;
x |= (info->var.sync & FB_SYNC_VERT_HIGH_ACT) ? 0 : 0x00000008;
x |= (info->var.sync & FB_SYNC_HOR_HIGH_ACT) ? 0 : 0x00000004;
x |= mi->invert_pixclock ? 0x00000002 : 0;
writel(x, fbi->reg_base + LCD_SPU_DUMB_CTRL);
}
static void set_dumb_screen_dimensions(struct fb_info *info)
{
struct pxa168fb_info *fbi = info->par;
struct fb_var_screeninfo *v = &info->var;
int x;
int y;
x = v->xres + v->right_margin + v->hsync_len + v->left_margin;
y = v->yres + v->lower_margin + v->vsync_len + v->upper_margin;
writel((y << 16) | x, fbi->reg_base + LCD_SPUT_V_H_TOTAL);
}
static int pxa168fb_set_par(struct fb_info *info)
{
struct pxa168fb_info *fbi = info->par;
struct fb_var_screeninfo *var = &info->var;
struct fb_videomode mode;
u32 x;
struct pxa168fb_mach_info *mi;
mi = fbi->dev->platform_data;
/*
* Set additional mode info.
*/
if (fbi->pix_fmt == PIX_FMT_PSEUDOCOLOR)
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
else
info->fix.visual = FB_VISUAL_TRUECOLOR;
info->fix.line_length = var->xres_virtual * var->bits_per_pixel / 8;
info->fix.ypanstep = var->yres;
/*
* Disable panel output while we setup the display.
*/
x = readl(fbi->reg_base + LCD_SPU_DUMB_CTRL);
writel(x & ~1, fbi->reg_base + LCD_SPU_DUMB_CTRL);
/*
* Configure global panel parameters.
*/
writel((var->yres << 16) | var->xres,
fbi->reg_base + LCD_SPU_V_H_ACTIVE);
/*
* convet var to video mode
*/
fb_var_to_videomode(&mode, &info->var);
/* Calculate clock divisor. */
set_clock_divider(fbi, &mode);
/* Configure dma ctrl regs. */
set_dma_control0(fbi);
set_dma_control1(fbi, info->var.sync);
/*
* Configure graphics DMA parameters.
*/
x = readl(fbi->reg_base + LCD_CFG_GRA_PITCH);
x = (x & ~0xFFFF) | ((var->xres_virtual * var->bits_per_pixel) >> 3);
writel(x, fbi->reg_base + LCD_CFG_GRA_PITCH);
writel((var->yres << 16) | var->xres,
fbi->reg_base + LCD_SPU_GRA_HPXL_VLN);
writel((var->yres << 16) | var->xres,
fbi->reg_base + LCD_SPU_GZM_HPXL_VLN);
/*
* Configure dumb panel ctrl regs & timings.
*/
set_dumb_panel_control(info);
set_dumb_screen_dimensions(info);
writel((var->left_margin << 16) | var->right_margin,
fbi->reg_base + LCD_SPU_H_PORCH);
writel((var->upper_margin << 16) | var->lower_margin,
fbi->reg_base + LCD_SPU_V_PORCH);
/*
* Re-enable panel output.
*/
x = readl(fbi->reg_base + LCD_SPU_DUMB_CTRL);
writel(x | 1, fbi->reg_base + LCD_SPU_DUMB_CTRL);
return 0;
}
static unsigned int chan_to_field(unsigned int chan, struct fb_bitfield *bf)
{
return ((chan & 0xffff) >> (16 - bf->length)) << bf->offset;
}
static u32 to_rgb(u16 red, u16 green, u16 blue)
{
red >>= 8;
green >>= 8;
blue >>= 8;
return (red << 16) | (green << 8) | blue;
}
static int
pxa168fb_setcolreg(unsigned int regno, unsigned int red, unsigned int green,
unsigned int blue, unsigned int trans, struct fb_info *info)
{
struct pxa168fb_info *fbi = info->par;
u32 val;
if (info->var.grayscale)
red = green = blue = (19595 * red + 38470 * green +
7471 * blue) >> 16;
if (info->fix.visual == FB_VISUAL_TRUECOLOR && regno < 16) {
val = chan_to_field(red, &info->var.red);
val |= chan_to_field(green, &info->var.green);
val |= chan_to_field(blue , &info->var.blue);
fbi->pseudo_palette[regno] = val;
}
if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR && regno < 256) {
val = to_rgb(red, green, blue);
writel(val, fbi->reg_base + LCD_SPU_SRAM_WRDAT);
writel(0x8300 | regno, fbi->reg_base + LCD_SPU_SRAM_CTRL);
}
return 0;
}
static int pxa168fb_blank(int blank, struct fb_info *info)
{
struct pxa168fb_info *fbi = info->par;
fbi->is_blanked = (blank == FB_BLANK_UNBLANK) ? 0 : 1;
set_dumb_panel_control(info);
return 0;
}
static int pxa168fb_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info)
{
set_graphics_start(info, var->xoffset, var->yoffset);
return 0;
}
static irqreturn_t pxa168fb_handle_irq(int irq, void *dev_id)
{
struct pxa168fb_info *fbi = dev_id;
u32 isr = readl(fbi->reg_base + SPU_IRQ_ISR);
if ((isr & GRA_FRAME_IRQ0_ENA_MASK)) {
writel(isr & (~GRA_FRAME_IRQ0_ENA_MASK),
fbi->reg_base + SPU_IRQ_ISR);
return IRQ_HANDLED;
}
return IRQ_NONE;
}
static struct fb_ops pxa168fb_ops = {
.owner = THIS_MODULE,
.fb_check_var = pxa168fb_check_var,
.fb_set_par = pxa168fb_set_par,
.fb_setcolreg = pxa168fb_setcolreg,
.fb_blank = pxa168fb_blank,
.fb_pan_display = pxa168fb_pan_display,
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
};
static int __init pxa168fb_init_mode(struct fb_info *info,
struct pxa168fb_mach_info *mi)
{
struct pxa168fb_info *fbi = info->par;
struct fb_var_screeninfo *var = &info->var;
int ret = 0;
u32 total_w, total_h, refresh;
u64 div_result;
const struct fb_videomode *m;
/*
* Set default value
*/
refresh = DEFAULT_REFRESH;
/* try to find best video mode. */
m = fb_find_best_mode(&info->var, &info->modelist);
if (m)
fb_videomode_to_var(&info->var, m);
/* Init settings. */
var->xres_virtual = var->xres;
var->yres_virtual = info->fix.smem_len /
(var->xres_virtual * (var->bits_per_pixel >> 3));
dev_dbg(fbi->dev, "pxa168fb: find best mode: res = %dx%d\n",
var->xres, var->yres);
/* correct pixclock. */
total_w = var->xres + var->left_margin + var->right_margin +
var->hsync_len;
total_h = var->yres + var->upper_margin + var->lower_margin +
var->vsync_len;
div_result = 1000000000000ll;
do_div(div_result, total_w * total_h * refresh);
var->pixclock = (u32)div_result;
return ret;
}
static int __init pxa168fb_probe(struct platform_device *pdev)
{
struct pxa168fb_mach_info *mi;
struct fb_info *info = 0;
struct pxa168fb_info *fbi = 0;
struct resource *res;
struct clk *clk;
int irq, ret;
mi = pdev->dev.platform_data;
if (mi == NULL) {
dev_err(&pdev->dev, "no platform data defined\n");
return -EINVAL;
}
clk = clk_get(&pdev->dev, "LCDCLK");
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "unable to get LCDCLK");
return PTR_ERR(clk);
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res == NULL) {
dev_err(&pdev->dev, "no IO memory defined\n");
return -ENOENT;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "no IRQ defined\n");
return -ENOENT;
}
info = framebuffer_alloc(sizeof(struct pxa168fb_info), &pdev->dev);
if (info == NULL) {
clk_put(clk);
return -ENOMEM;
}
/* Initialize private data */
fbi = info->par;
fbi->info = info;
fbi->clk = clk;
fbi->dev = info->dev = &pdev->dev;
fbi->panel_rbswap = mi->panel_rbswap;
fbi->is_blanked = 0;
fbi->active = mi->active;
/*
* Initialise static fb parameters.
*/
info->flags = FBINFO_DEFAULT | FBINFO_PARTIAL_PAN_OK |
FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN;
info->node = -1;
strlcpy(info->fix.id, mi->id, 16);
info->fix.type = FB_TYPE_PACKED_PIXELS;
info->fix.type_aux = 0;
info->fix.xpanstep = 0;
info->fix.ypanstep = 0;
info->fix.ywrapstep = 0;
info->fix.mmio_start = res->start;
info->fix.mmio_len = res->end - res->start + 1;
info->fix.accel = FB_ACCEL_NONE;
info->fbops = &pxa168fb_ops;
info->pseudo_palette = fbi->pseudo_palette;
/*
* Map LCD controller registers.
*/
fbi->reg_base = ioremap_nocache(res->start, res->end - res->start);
if (fbi->reg_base == NULL) {
ret = -ENOMEM;
goto failed;
}
/*
* Allocate framebuffer memory.
*/
info->fix.smem_len = PAGE_ALIGN(DEFAULT_FB_SIZE);
info->screen_base = dma_alloc_writecombine(fbi->dev, info->fix.smem_len,
&fbi->fb_start_dma, GFP_KERNEL);
if (info->screen_base == NULL) {
ret = -ENOMEM;
goto failed;
}
info->fix.smem_start = (unsigned long)fbi->fb_start_dma;
/*
* Set video mode according to platform data.
*/
set_mode(fbi, &info->var, mi->modes, mi->pix_fmt, 1);
fb_videomode_to_modelist(mi->modes, mi->num_modes, &info->modelist);
/*
* init video mode data.
*/
pxa168fb_init_mode(info, mi);
ret = pxa168fb_check_var(&info->var, info);
if (ret)
goto failed_free_fbmem;
/*
* Fill in sane defaults.
*/
ret = pxa168fb_check_var(&info->var, info);
if (ret)
goto failed;
/*
* enable controller clock
*/
clk_enable(fbi->clk);
pxa168fb_set_par(info);
/*
* Configure default register values.
*/
writel(0, fbi->reg_base + LCD_SPU_BLANKCOLOR);
writel(mi->io_pin_allocation_mode, fbi->reg_base + SPU_IOPAD_CONTROL);
writel(0, fbi->reg_base + LCD_CFG_GRA_START_ADDR1);
writel(0, fbi->reg_base + LCD_SPU_GRA_OVSA_HPXL_VLN);
writel(0, fbi->reg_base + LCD_SPU_SRAM_PARA0);
writel(CFG_CSB_256x32(0x1)|CFG_CSB_256x24(0x1)|CFG_CSB_256x8(0x1),
fbi->reg_base + LCD_SPU_SRAM_PARA1);
/*
* Allocate color map.
*/
if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
ret = -ENOMEM;
goto failed_free_clk;
}
/*
* Register irq handler.
*/
ret = request_irq(irq, pxa168fb_handle_irq, IRQF_SHARED,
info->fix.id, fbi);
if (ret < 0) {
dev_err(&pdev->dev, "unable to request IRQ\n");
ret = -ENXIO;
goto failed_free_cmap;
}
/*
* Enable GFX interrupt
*/
writel(GRA_FRAME_IRQ0_ENA(0x1), fbi->reg_base + SPU_IRQ_ENA);
/*
* Register framebuffer.
*/
ret = register_framebuffer(info);
if (ret < 0) {
dev_err(&pdev->dev, "Failed to register pxa168-fb: %d\n", ret);
ret = -ENXIO;
goto failed_free_irq;
}
platform_set_drvdata(pdev, fbi);
return 0;
failed_free_irq:
free_irq(irq, fbi);
failed_free_cmap:
fb_dealloc_cmap(&info->cmap);
failed_free_clk:
clk_disable(fbi->clk);
failed_free_fbmem:
dma_free_coherent(fbi->dev, info->fix.smem_len,
info->screen_base, fbi->fb_start_dma);
failed:
kfree(info);
clk_put(clk);
dev_err(&pdev->dev, "frame buffer device init failed with %d\n", ret);
return ret;
}
static struct platform_driver pxa168fb_driver = {
.driver = {
.name = "pxa168-fb",
.owner = THIS_MODULE,
},
.probe = pxa168fb_probe,
};
static int __devinit pxa168fb_init(void)
{
return platform_driver_register(&pxa168fb_driver);
}
module_init(pxa168fb_init);
MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com> "
"Green Wan <gwan@marvell.com>");
MODULE_DESCRIPTION("Framebuffer driver for PXA168/910");
MODULE_LICENSE("GPL");

558
drivers/video/pxa168fb.h Normal file
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@ -0,0 +1,558 @@
#ifndef __PXA168FB_H__
#define __PXA168FB_H__
/* ------------< LCD register >------------ */
/* Video Frame 0&1 start address registers */
#define LCD_SPU_DMA_START_ADDR_Y0 0x00C0
#define LCD_SPU_DMA_START_ADDR_U0 0x00C4
#define LCD_SPU_DMA_START_ADDR_V0 0x00C8
#define LCD_CFG_DMA_START_ADDR_0 0x00CC /* Cmd address */
#define LCD_SPU_DMA_START_ADDR_Y1 0x00D0
#define LCD_SPU_DMA_START_ADDR_U1 0x00D4
#define LCD_SPU_DMA_START_ADDR_V1 0x00D8
#define LCD_CFG_DMA_START_ADDR_1 0x00DC /* Cmd address */
/* YC & UV Pitch */
#define LCD_SPU_DMA_PITCH_YC 0x00E0
#define SPU_DMA_PITCH_C(c) ((c) << 16)
#define SPU_DMA_PITCH_Y(y) (y)
#define LCD_SPU_DMA_PITCH_UV 0x00E4
#define SPU_DMA_PITCH_V(v) ((v) << 16)
#define SPU_DMA_PITCH_U(u) (u)
/* Video Starting Point on Screen Register */
#define LCD_SPUT_DMA_OVSA_HPXL_VLN 0x00E8
#define CFG_DMA_OVSA_VLN(y) ((y) << 16) /* 0~0xfff */
#define CFG_DMA_OVSA_HPXL(x) (x) /* 0~0xfff */
/* Video Size Register */
#define LCD_SPU_DMA_HPXL_VLN 0x00EC
#define CFG_DMA_VLN(y) ((y) << 16)
#define CFG_DMA_HPXL(x) (x)
/* Video Size After zooming Register */
#define LCD_SPU_DZM_HPXL_VLN 0x00F0
#define CFG_DZM_VLN(y) ((y) << 16)
#define CFG_DZM_HPXL(x) (x)
/* Graphic Frame 0&1 Starting Address Register */
#define LCD_CFG_GRA_START_ADDR0 0x00F4
#define LCD_CFG_GRA_START_ADDR1 0x00F8
/* Graphic Frame Pitch */
#define LCD_CFG_GRA_PITCH 0x00FC
/* Graphic Starting Point on Screen Register */
#define LCD_SPU_GRA_OVSA_HPXL_VLN 0x0100
#define CFG_GRA_OVSA_VLN(y) ((y) << 16)
#define CFG_GRA_OVSA_HPXL(x) (x)
/* Graphic Size Register */
#define LCD_SPU_GRA_HPXL_VLN 0x0104
#define CFG_GRA_VLN(y) ((y) << 16)
#define CFG_GRA_HPXL(x) (x)
/* Graphic Size after Zooming Register */
#define LCD_SPU_GZM_HPXL_VLN 0x0108
#define CFG_GZM_VLN(y) ((y) << 16)
#define CFG_GZM_HPXL(x) (x)
/* HW Cursor Starting Point on Screen Register */
#define LCD_SPU_HWC_OVSA_HPXL_VLN 0x010C
#define CFG_HWC_OVSA_VLN(y) ((y) << 16)
#define CFG_HWC_OVSA_HPXL(x) (x)
/* HW Cursor Size */
#define LCD_SPU_HWC_HPXL_VLN 0x0110
#define CFG_HWC_VLN(y) ((y) << 16)
#define CFG_HWC_HPXL(x) (x)
/* Total Screen Size Register */
#define LCD_SPUT_V_H_TOTAL 0x0114
#define CFG_V_TOTAL(y) ((y) << 16)
#define CFG_H_TOTAL(x) (x)
/* Total Screen Active Size Register */
#define LCD_SPU_V_H_ACTIVE 0x0118
#define CFG_V_ACTIVE(y) ((y) << 16)
#define CFG_H_ACTIVE(x) (x)
/* Screen H&V Porch Register */
#define LCD_SPU_H_PORCH 0x011C
#define CFG_H_BACK_PORCH(b) ((b) << 16)
#define CFG_H_FRONT_PORCH(f) (f)
#define LCD_SPU_V_PORCH 0x0120
#define CFG_V_BACK_PORCH(b) ((b) << 16)
#define CFG_V_FRONT_PORCH(f) (f)
/* Screen Blank Color Register */
#define LCD_SPU_BLANKCOLOR 0x0124
#define CFG_BLANKCOLOR_MASK 0x00FFFFFF
#define CFG_BLANKCOLOR_R_MASK 0x000000FF
#define CFG_BLANKCOLOR_G_MASK 0x0000FF00
#define CFG_BLANKCOLOR_B_MASK 0x00FF0000
/* HW Cursor Color 1&2 Register */
#define LCD_SPU_ALPHA_COLOR1 0x0128
#define CFG_HWC_COLOR1 0x00FFFFFF
#define CFG_HWC_COLOR1_R(red) ((red) << 16)
#define CFG_HWC_COLOR1_G(green) ((green) << 8)
#define CFG_HWC_COLOR1_B(blue) (blue)
#define CFG_HWC_COLOR1_R_MASK 0x000000FF
#define CFG_HWC_COLOR1_G_MASK 0x0000FF00
#define CFG_HWC_COLOR1_B_MASK 0x00FF0000
#define LCD_SPU_ALPHA_COLOR2 0x012C
#define CFG_HWC_COLOR2 0x00FFFFFF
#define CFG_HWC_COLOR2_R_MASK 0x000000FF
#define CFG_HWC_COLOR2_G_MASK 0x0000FF00
#define CFG_HWC_COLOR2_B_MASK 0x00FF0000
/* Video YUV Color Key Control */
#define LCD_SPU_COLORKEY_Y 0x0130
#define CFG_CKEY_Y2(y2) ((y2) << 24)
#define CFG_CKEY_Y2_MASK 0xFF000000
#define CFG_CKEY_Y1(y1) ((y1) << 16)
#define CFG_CKEY_Y1_MASK 0x00FF0000
#define CFG_CKEY_Y(y) ((y) << 8)
#define CFG_CKEY_Y_MASK 0x0000FF00
#define CFG_ALPHA_Y(y) (y)
#define CFG_ALPHA_Y_MASK 0x000000FF
#define LCD_SPU_COLORKEY_U 0x0134
#define CFG_CKEY_U2(u2) ((u2) << 24)
#define CFG_CKEY_U2_MASK 0xFF000000
#define CFG_CKEY_U1(u1) ((u1) << 16)
#define CFG_CKEY_U1_MASK 0x00FF0000
#define CFG_CKEY_U(u) ((u) << 8)
#define CFG_CKEY_U_MASK 0x0000FF00
#define CFG_ALPHA_U(u) (u)
#define CFG_ALPHA_U_MASK 0x000000FF
#define LCD_SPU_COLORKEY_V 0x0138
#define CFG_CKEY_V2(v2) ((v2) << 24)
#define CFG_CKEY_V2_MASK 0xFF000000
#define CFG_CKEY_V1(v1) ((v1) << 16)
#define CFG_CKEY_V1_MASK 0x00FF0000
#define CFG_CKEY_V(v) ((v) << 8)
#define CFG_CKEY_V_MASK 0x0000FF00
#define CFG_ALPHA_V(v) (v)
#define CFG_ALPHA_V_MASK 0x000000FF
/* SPI Read Data Register */
#define LCD_SPU_SPI_RXDATA 0x0140
/* Smart Panel Read Data Register */
#define LCD_SPU_ISA_RSDATA 0x0144
#define ISA_RXDATA_16BIT_1_DATA_MASK 0x000000FF
#define ISA_RXDATA_16BIT_2_DATA_MASK 0x0000FF00
#define ISA_RXDATA_16BIT_3_DATA_MASK 0x00FF0000
#define ISA_RXDATA_16BIT_4_DATA_MASK 0xFF000000
#define ISA_RXDATA_32BIT_1_DATA_MASK 0x00FFFFFF
/* HWC SRAM Read Data Register */
#define LCD_SPU_HWC_RDDAT 0x0158
/* Gamma Table SRAM Read Data Register */
#define LCD_SPU_GAMMA_RDDAT 0x015c
#define CFG_GAMMA_RDDAT_MASK 0x000000FF
/* Palette Table SRAM Read Data Register */
#define LCD_SPU_PALETTE_RDDAT 0x0160
#define CFG_PALETTE_RDDAT_MASK 0x00FFFFFF
/* I/O Pads Input Read Only Register */
#define LCD_SPU_IOPAD_IN 0x0178
#define CFG_IOPAD_IN_MASK 0x0FFFFFFF
/* Reserved Read Only Registers */
#define LCD_CFG_RDREG5F 0x017C
#define IRE_FRAME_CNT_MASK 0x000000C0
#define IPE_FRAME_CNT_MASK 0x00000030
#define GRA_FRAME_CNT_MASK 0x0000000C /* Graphic */
#define DMA_FRAME_CNT_MASK 0x00000003 /* Video */
/* SPI Control Register. */
#define LCD_SPU_SPI_CTRL 0x0180
#define CFG_SCLKCNT(div) ((div) << 24) /* 0xFF~0x2 */
#define CFG_SCLKCNT_MASK 0xFF000000
#define CFG_RXBITS(rx) ((rx) << 16) /* 0x1F~0x1 */
#define CFG_RXBITS_MASK 0x00FF0000
#define CFG_TXBITS(tx) ((tx) << 8) /* 0x1F~0x1 */
#define CFG_TXBITS_MASK 0x0000FF00
#define CFG_CLKINV(clk) ((clk) << 7)
#define CFG_CLKINV_MASK 0x00000080
#define CFG_KEEPXFER(transfer) ((transfer) << 6)
#define CFG_KEEPXFER_MASK 0x00000040
#define CFG_RXBITSTO0(rx) ((rx) << 5)
#define CFG_RXBITSTO0_MASK 0x00000020
#define CFG_TXBITSTO0(tx) ((tx) << 4)
#define CFG_TXBITSTO0_MASK 0x00000010
#define CFG_SPI_ENA(spi) ((spi) << 3)
#define CFG_SPI_ENA_MASK 0x00000008
#define CFG_SPI_SEL(spi) ((spi) << 2)
#define CFG_SPI_SEL_MASK 0x00000004
#define CFG_SPI_3W4WB(wire) ((wire) << 1)
#define CFG_SPI_3W4WB_MASK 0x00000002
#define CFG_SPI_START(start) (start)
#define CFG_SPI_START_MASK 0x00000001
/* SPI Tx Data Register */
#define LCD_SPU_SPI_TXDATA 0x0184
/*
1. Smart Pannel 8-bit Bus Control Register.
2. AHB Slave Path Data Port Register
*/
#define LCD_SPU_SMPN_CTRL 0x0188
/* DMA Control 0 Register */
#define LCD_SPU_DMA_CTRL0 0x0190
#define CFG_NOBLENDING(nb) ((nb) << 31)
#define CFG_NOBLENDING_MASK 0x80000000
#define CFG_GAMMA_ENA(gn) ((gn) << 30)
#define CFG_GAMMA_ENA_MASK 0x40000000
#define CFG_CBSH_ENA(cn) ((cn) << 29)
#define CFG_CBSH_ENA_MASK 0x20000000
#define CFG_PALETTE_ENA(pn) ((pn) << 28)
#define CFG_PALETTE_ENA_MASK 0x10000000
#define CFG_ARBFAST_ENA(an) ((an) << 27)
#define CFG_ARBFAST_ENA_MASK 0x08000000
#define CFG_HWC_1BITMOD(mode) ((mode) << 26)
#define CFG_HWC_1BITMOD_MASK 0x04000000
#define CFG_HWC_1BITENA(mn) ((mn) << 25)
#define CFG_HWC_1BITENA_MASK 0x02000000
#define CFG_HWC_ENA(cn) ((cn) << 24)
#define CFG_HWC_ENA_MASK 0x01000000
#define CFG_DMAFORMAT(dmaformat) ((dmaformat) << 20)
#define CFG_DMAFORMAT_MASK 0x00F00000
#define CFG_GRAFORMAT(graformat) ((graformat) << 16)
#define CFG_GRAFORMAT_MASK 0x000F0000
/* for graphic part */
#define CFG_GRA_FTOGGLE(toggle) ((toggle) << 15)
#define CFG_GRA_FTOGGLE_MASK 0x00008000
#define CFG_GRA_HSMOOTH(smooth) ((smooth) << 14)
#define CFG_GRA_HSMOOTH_MASK 0x00004000
#define CFG_GRA_TSTMODE(test) ((test) << 13)
#define CFG_GRA_TSTMODE_MASK 0x00002000
#define CFG_GRA_SWAPRB(swap) ((swap) << 12)
#define CFG_GRA_SWAPRB_MASK 0x00001000
#define CFG_GRA_SWAPUV(swap) ((swap) << 11)
#define CFG_GRA_SWAPUV_MASK 0x00000800
#define CFG_GRA_SWAPYU(swap) ((swap) << 10)
#define CFG_GRA_SWAPYU_MASK 0x00000400
#define CFG_YUV2RGB_GRA(cvrt) ((cvrt) << 9)
#define CFG_YUV2RGB_GRA_MASK 0x00000200
#define CFG_GRA_ENA(gra) ((gra) << 8)
#define CFG_GRA_ENA_MASK 0x00000100
/* for video part */
#define CFG_DMA_FTOGGLE(toggle) ((toggle) << 7)
#define CFG_DMA_FTOGGLE_MASK 0x00000080
#define CFG_DMA_HSMOOTH(smooth) ((smooth) << 6)
#define CFG_DMA_HSMOOTH_MASK 0x00000040
#define CFG_DMA_TSTMODE(test) ((test) << 5)
#define CFG_DMA_TSTMODE_MASK 0x00000020
#define CFG_DMA_SWAPRB(swap) ((swap) << 4)
#define CFG_DMA_SWAPRB_MASK 0x00000010
#define CFG_DMA_SWAPUV(swap) ((swap) << 3)
#define CFG_DMA_SWAPUV_MASK 0x00000008
#define CFG_DMA_SWAPYU(swap) ((swap) << 2)
#define CFG_DMA_SWAPYU_MASK 0x00000004
#define CFG_DMA_SWAP_MASK 0x0000001C
#define CFG_YUV2RGB_DMA(cvrt) ((cvrt) << 1)
#define CFG_YUV2RGB_DMA_MASK 0x00000002
#define CFG_DMA_ENA(video) (video)
#define CFG_DMA_ENA_MASK 0x00000001
/* DMA Control 1 Register */
#define LCD_SPU_DMA_CTRL1 0x0194
#define CFG_FRAME_TRIG(trig) ((trig) << 31)
#define CFG_FRAME_TRIG_MASK 0x80000000
#define CFG_VSYNC_TRIG(trig) ((trig) << 28)
#define CFG_VSYNC_TRIG_MASK 0x70000000
#define CFG_VSYNC_INV(inv) ((inv) << 27)
#define CFG_VSYNC_INV_MASK 0x08000000
#define CFG_COLOR_KEY_MODE(cmode) ((cmode) << 24)
#define CFG_COLOR_KEY_MASK 0x07000000
#define CFG_CARRY(carry) ((carry) << 23)
#define CFG_CARRY_MASK 0x00800000
#define CFG_LNBUF_ENA(lnbuf) ((lnbuf) << 22)
#define CFG_LNBUF_ENA_MASK 0x00400000
#define CFG_GATED_ENA(gated) ((gated) << 21)
#define CFG_GATED_ENA_MASK 0x00200000
#define CFG_PWRDN_ENA(power) ((power) << 20)
#define CFG_PWRDN_ENA_MASK 0x00100000
#define CFG_DSCALE(dscale) ((dscale) << 18)
#define CFG_DSCALE_MASK 0x000C0000
#define CFG_ALPHA_MODE(amode) ((amode) << 16)
#define CFG_ALPHA_MODE_MASK 0x00030000
#define CFG_ALPHA(alpha) ((alpha) << 8)
#define CFG_ALPHA_MASK 0x0000FF00
#define CFG_PXLCMD(pxlcmd) (pxlcmd)
#define CFG_PXLCMD_MASK 0x000000FF
/* SRAM Control Register */
#define LCD_SPU_SRAM_CTRL 0x0198
#define CFG_SRAM_INIT_WR_RD(mode) ((mode) << 14)
#define CFG_SRAM_INIT_WR_RD_MASK 0x0000C000
#define CFG_SRAM_ADDR_LCDID(id) ((id) << 8)
#define CFG_SRAM_ADDR_LCDID_MASK 0x00000F00
#define CFG_SRAM_ADDR(addr) (addr)
#define CFG_SRAM_ADDR_MASK 0x000000FF
/* SRAM Write Data Register */
#define LCD_SPU_SRAM_WRDAT 0x019C
/* SRAM RTC/WTC Control Register */
#define LCD_SPU_SRAM_PARA0 0x01A0
/* SRAM Power Down Control Register */
#define LCD_SPU_SRAM_PARA1 0x01A4
#define CFG_CSB_256x32(hwc) ((hwc) << 15) /* HWC */
#define CFG_CSB_256x32_MASK 0x00008000
#define CFG_CSB_256x24(palette) ((palette) << 14) /* Palette */
#define CFG_CSB_256x24_MASK 0x00004000
#define CFG_CSB_256x8(gamma) ((gamma) << 13) /* Gamma */
#define CFG_CSB_256x8_MASK 0x00002000
#define CFG_PDWN256x32(pdwn) ((pdwn) << 7) /* HWC */
#define CFG_PDWN256x32_MASK 0x00000080
#define CFG_PDWN256x24(pdwn) ((pdwn) << 6) /* Palette */
#define CFG_PDWN256x24_MASK 0x00000040
#define CFG_PDWN256x8(pdwn) ((pdwn) << 5) /* Gamma */
#define CFG_PDWN256x8_MASK 0x00000020
#define CFG_PDWN32x32(pdwn) ((pdwn) << 3)
#define CFG_PDWN32x32_MASK 0x00000008
#define CFG_PDWN16x66(pdwn) ((pdwn) << 2)
#define CFG_PDWN16x66_MASK 0x00000004
#define CFG_PDWN32x66(pdwn) ((pdwn) << 1)
#define CFG_PDWN32x66_MASK 0x00000002
#define CFG_PDWN64x66(pdwn) (pdwn)
#define CFG_PDWN64x66_MASK 0x00000001
/* Smart or Dumb Panel Clock Divider */
#define LCD_CFG_SCLK_DIV 0x01A8
#define SCLK_SOURCE_SELECT(src) ((src) << 31)
#define SCLK_SOURCE_SELECT_MASK 0x80000000
#define CLK_FRACDIV(frac) ((frac) << 16)
#define CLK_FRACDIV_MASK 0x0FFF0000
#define CLK_INT_DIV(div) (div)
#define CLK_INT_DIV_MASK 0x0000FFFF
/* Video Contrast Register */
#define LCD_SPU_CONTRAST 0x01AC
#define CFG_BRIGHTNESS(bright) ((bright) << 16)
#define CFG_BRIGHTNESS_MASK 0xFFFF0000
#define CFG_CONTRAST(contrast) (contrast)
#define CFG_CONTRAST_MASK 0x0000FFFF
/* Video Saturation Register */
#define LCD_SPU_SATURATION 0x01B0
#define CFG_C_MULTS(mult) ((mult) << 16)
#define CFG_C_MULTS_MASK 0xFFFF0000
#define CFG_SATURATION(sat) (sat)
#define CFG_SATURATION_MASK 0x0000FFFF
/* Video Hue Adjust Register */
#define LCD_SPU_CBSH_HUE 0x01B4
#define CFG_SIN0(sin0) ((sin0) << 16)
#define CFG_SIN0_MASK 0xFFFF0000
#define CFG_COS0(con0) (con0)
#define CFG_COS0_MASK 0x0000FFFF
/* Dump LCD Panel Control Register */
#define LCD_SPU_DUMB_CTRL 0x01B8
#define CFG_DUMBMODE(mode) ((mode) << 28)
#define CFG_DUMBMODE_MASK 0xF0000000
#define CFG_LCDGPIO_O(data) ((data) << 20)
#define CFG_LCDGPIO_O_MASK 0x0FF00000
#define CFG_LCDGPIO_ENA(gpio) ((gpio) << 12)
#define CFG_LCDGPIO_ENA_MASK 0x000FF000
#define CFG_BIAS_OUT(bias) ((bias) << 8)
#define CFG_BIAS_OUT_MASK 0x00000100
#define CFG_REVERSE_RGB(rRGB) ((rRGB) << 7)
#define CFG_REVERSE_RGB_MASK 0x00000080
#define CFG_INV_COMPBLANK(blank) ((blank) << 6)
#define CFG_INV_COMPBLANK_MASK 0x00000040
#define CFG_INV_COMPSYNC(sync) ((sync) << 5)
#define CFG_INV_COMPSYNC_MASK 0x00000020
#define CFG_INV_HENA(hena) ((hena) << 4)
#define CFG_INV_HENA_MASK 0x00000010
#define CFG_INV_VSYNC(vsync) ((vsync) << 3)
#define CFG_INV_VSYNC_MASK 0x00000008
#define CFG_INV_HSYNC(hsync) ((hsync) << 2)
#define CFG_INV_HSYNC_MASK 0x00000004
#define CFG_INV_PCLK(pclk) ((pclk) << 1)
#define CFG_INV_PCLK_MASK 0x00000002
#define CFG_DUMB_ENA(dumb) (dumb)
#define CFG_DUMB_ENA_MASK 0x00000001
/* LCD I/O Pads Control Register */
#define SPU_IOPAD_CONTROL 0x01BC
#define CFG_GRA_VM_ENA(vm) ((vm) << 15) /* gfx */
#define CFG_GRA_VM_ENA_MASK 0x00008000
#define CFG_DMA_VM_ENA(vm) ((vm) << 13) /* video */
#define CFG_DMA_VM_ENA_MASK 0x00002000
#define CFG_CMD_VM_ENA(vm) ((vm) << 13)
#define CFG_CMD_VM_ENA_MASK 0x00000800
#define CFG_CSC(csc) ((csc) << 8) /* csc */
#define CFG_CSC_MASK 0x00000300
#define CFG_AXICTRL(axi) ((axi) << 4)
#define CFG_AXICTRL_MASK 0x000000F0
#define CFG_IOPADMODE(iopad) (iopad)
#define CFG_IOPADMODE_MASK 0x0000000F
/* LCD Interrupt Control Register */
#define SPU_IRQ_ENA 0x01C0
#define DMA_FRAME_IRQ0_ENA(irq) ((irq) << 31)
#define DMA_FRAME_IRQ0_ENA_MASK 0x80000000
#define DMA_FRAME_IRQ1_ENA(irq) ((irq) << 30)
#define DMA_FRAME_IRQ1_ENA_MASK 0x40000000
#define DMA_FF_UNDERFLOW_ENA(ff) ((ff) << 29)
#define DMA_FF_UNDERFLOW_ENA_MASK 0x20000000
#define GRA_FRAME_IRQ0_ENA(irq) ((irq) << 27)
#define GRA_FRAME_IRQ0_ENA_MASK 0x08000000
#define GRA_FRAME_IRQ1_ENA(irq) ((irq) << 26)
#define GRA_FRAME_IRQ1_ENA_MASK 0x04000000
#define GRA_FF_UNDERFLOW_ENA(ff) ((ff) << 25)
#define GRA_FF_UNDERFLOW_ENA_MASK 0x02000000
#define VSYNC_IRQ_ENA(vsync_irq) ((vsync_irq) << 23)
#define VSYNC_IRQ_ENA_MASK 0x00800000
#define DUMB_FRAMEDONE_ENA(fdone) ((fdone) << 22)
#define DUMB_FRAMEDONE_ENA_MASK 0x00400000
#define TWC_FRAMEDONE_ENA(fdone) ((fdone) << 21)
#define TWC_FRAMEDONE_ENA_MASK 0x00200000
#define HWC_FRAMEDONE_ENA(fdone) ((fdone) << 20)
#define HWC_FRAMEDONE_ENA_MASK 0x00100000
#define SLV_IRQ_ENA(irq) ((irq) << 19)
#define SLV_IRQ_ENA_MASK 0x00080000
#define SPI_IRQ_ENA(irq) ((irq) << 18)
#define SPI_IRQ_ENA_MASK 0x00040000
#define PWRDN_IRQ_ENA(irq) ((irq) << 17)
#define PWRDN_IRQ_ENA_MASK 0x00020000
#define ERR_IRQ_ENA(irq) ((irq) << 16)
#define ERR_IRQ_ENA_MASK 0x00010000
#define CLEAN_SPU_IRQ_ISR(irq) (irq)
#define CLEAN_SPU_IRQ_ISR_MASK 0x0000FFFF
/* LCD Interrupt Status Register */
#define SPU_IRQ_ISR 0x01C4
#define DMA_FRAME_IRQ0(irq) ((irq) << 31)
#define DMA_FRAME_IRQ0_MASK 0x80000000
#define DMA_FRAME_IRQ1(irq) ((irq) << 30)
#define DMA_FRAME_IRQ1_MASK 0x40000000
#define DMA_FF_UNDERFLOW(ff) ((ff) << 29)
#define DMA_FF_UNDERFLOW_MASK 0x20000000
#define GRA_FRAME_IRQ0(irq) ((irq) << 27)
#define GRA_FRAME_IRQ0_MASK 0x08000000
#define GRA_FRAME_IRQ1(irq) ((irq) << 26)
#define GRA_FRAME_IRQ1_MASK 0x04000000
#define GRA_FF_UNDERFLOW(ff) ((ff) << 25)
#define GRA_FF_UNDERFLOW_MASK 0x02000000
#define VSYNC_IRQ(vsync_irq) ((vsync_irq) << 23)
#define VSYNC_IRQ_MASK 0x00800000
#define DUMB_FRAMEDONE(fdone) ((fdone) << 22)
#define DUMB_FRAMEDONE_MASK 0x00400000
#define TWC_FRAMEDONE(fdone) ((fdone) << 21)
#define TWC_FRAMEDONE_MASK 0x00200000
#define HWC_FRAMEDONE(fdone) ((fdone) << 20)
#define HWC_FRAMEDONE_MASK 0x00100000
#define SLV_IRQ(irq) ((irq) << 19)
#define SLV_IRQ_MASK 0x00080000
#define SPI_IRQ(irq) ((irq) << 18)
#define SPI_IRQ_MASK 0x00040000
#define PWRDN_IRQ(irq) ((irq) << 17)
#define PWRDN_IRQ_MASK 0x00020000
#define ERR_IRQ(irq) ((irq) << 16)
#define ERR_IRQ_MASK 0x00010000
/* read-only */
#define DMA_FRAME_IRQ0_LEVEL_MASK 0x00008000
#define DMA_FRAME_IRQ1_LEVEL_MASK 0x00004000
#define DMA_FRAME_CNT_ISR_MASK 0x00003000
#define GRA_FRAME_IRQ0_LEVEL_MASK 0x00000800
#define GRA_FRAME_IRQ1_LEVEL_MASK 0x00000400
#define GRA_FRAME_CNT_ISR_MASK 0x00000300
#define VSYNC_IRQ_LEVEL_MASK 0x00000080
#define DUMB_FRAMEDONE_LEVEL_MASK 0x00000040
#define TWC_FRAMEDONE_LEVEL_MASK 0x00000020
#define HWC_FRAMEDONE_LEVEL_MASK 0x00000010
#define SLV_FF_EMPTY_MASK 0x00000008
#define DMA_FF_ALLEMPTY_MASK 0x00000004
#define GRA_FF_ALLEMPTY_MASK 0x00000002
#define PWRDN_IRQ_LEVEL_MASK 0x00000001
/*
* defined Video Memory Color format for DMA control 0 register
* DMA0 bit[23:20]
*/
#define VMODE_RGB565 0x0
#define VMODE_RGB1555 0x1
#define VMODE_RGB888PACKED 0x2
#define VMODE_RGB888UNPACKED 0x3
#define VMODE_RGBA888 0x4
#define VMODE_YUV422PACKED 0x5
#define VMODE_YUV422PLANAR 0x6
#define VMODE_YUV420PLANAR 0x7
#define VMODE_SMPNCMD 0x8
#define VMODE_PALETTE4BIT 0x9
#define VMODE_PALETTE8BIT 0xa
#define VMODE_RESERVED 0xb
/*
* defined Graphic Memory Color format for DMA control 0 register
* DMA0 bit[19:16]
*/
#define GMODE_RGB565 0x0
#define GMODE_RGB1555 0x1
#define GMODE_RGB888PACKED 0x2
#define GMODE_RGB888UNPACKED 0x3
#define GMODE_RGBA888 0x4
#define GMODE_YUV422PACKED 0x5
#define GMODE_YUV422PLANAR 0x6
#define GMODE_YUV420PLANAR 0x7
#define GMODE_SMPNCMD 0x8
#define GMODE_PALETTE4BIT 0x9
#define GMODE_PALETTE8BIT 0xa
#define GMODE_RESERVED 0xb
/*
* define for DMA control 1 register
*/
#define DMA1_FRAME_TRIG 31 /* bit location */
#define DMA1_VSYNC_MODE 28
#define DMA1_VSYNC_INV 27
#define DMA1_CKEY 24
#define DMA1_CARRY 23
#define DMA1_LNBUF_ENA 22
#define DMA1_GATED_ENA 21
#define DMA1_PWRDN_ENA 20
#define DMA1_DSCALE 18
#define DMA1_ALPHA_MODE 16
#define DMA1_ALPHA 08
#define DMA1_PXLCMD 00
/*
* defined for Configure Dumb Mode
* DUMB LCD Panel bit[31:28]
*/
#define DUMB16_RGB565_0 0x0
#define DUMB16_RGB565_1 0x1
#define DUMB18_RGB666_0 0x2
#define DUMB18_RGB666_1 0x3
#define DUMB12_RGB444_0 0x4
#define DUMB12_RGB444_1 0x5
#define DUMB24_RGB888_0 0x6
#define DUMB_BLANK 0x7
/*
* defined for Configure I/O Pin Allocation Mode
* LCD LCD I/O Pads control register bit[3:0]
*/
#define IOPAD_DUMB24 0x0
#define IOPAD_DUMB18SPI 0x1
#define IOPAD_DUMB18GPIO 0x2
#define IOPAD_DUMB16SPI 0x3
#define IOPAD_DUMB16GPIO 0x4
#define IOPAD_DUMB12 0x5
#define IOPAD_SMART18SPI 0x6
#define IOPAD_SMART16SPI 0x7
#define IOPAD_SMART8BOTH 0x8
#endif /* __PXA168FB_H__ */

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/*
* linux/arch/arm/mach-mmp/include/mach/pxa168fb.h
*
* Copyright (C) 2009 Marvell International Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_MACH_PXA168FB_H
#define __ASM_MACH_PXA168FB_H
#include <linux/fb.h>
#include <linux/interrupt.h>
/* Dumb interface */
#define PIN_MODE_DUMB_24 0
#define PIN_MODE_DUMB_18_SPI 1
#define PIN_MODE_DUMB_18_GPIO 2
#define PIN_MODE_DUMB_16_SPI 3
#define PIN_MODE_DUMB_16_GPIO 4
#define PIN_MODE_DUMB_12_SPI_GPIO 5
#define PIN_MODE_SMART_18_SPI 6
#define PIN_MODE_SMART_16_SPI 7
#define PIN_MODE_SMART_8_SPI_GPIO 8
/* Dumb interface pin allocation */
#define DUMB_MODE_RGB565 0
#define DUMB_MODE_RGB565_UPPER 1
#define DUMB_MODE_RGB666 2
#define DUMB_MODE_RGB666_UPPER 3
#define DUMB_MODE_RGB444 4
#define DUMB_MODE_RGB444_UPPER 5
#define DUMB_MODE_RGB888 6
/* default fb buffer size WVGA-32bits */
#define DEFAULT_FB_SIZE (800 * 480 * 4)
/*
* Buffer pixel format
* bit0 is for rb swap.
* bit12 is for Y UorV swap
*/
#define PIX_FMT_RGB565 0
#define PIX_FMT_BGR565 1
#define PIX_FMT_RGB1555 2
#define PIX_FMT_BGR1555 3
#define PIX_FMT_RGB888PACK 4
#define PIX_FMT_BGR888PACK 5
#define PIX_FMT_RGB888UNPACK 6
#define PIX_FMT_BGR888UNPACK 7
#define PIX_FMT_RGBA888 8
#define PIX_FMT_BGRA888 9
#define PIX_FMT_YUV422PACK 10
#define PIX_FMT_YVU422PACK 11
#define PIX_FMT_YUV422PLANAR 12
#define PIX_FMT_YVU422PLANAR 13
#define PIX_FMT_YUV420PLANAR 14
#define PIX_FMT_YVU420PLANAR 15
#define PIX_FMT_PSEUDOCOLOR 20
#define PIX_FMT_UYVY422PACK (0x1000|PIX_FMT_YUV422PACK)
/*
* PXA LCD controller private state.
*/
struct pxa168fb_info {
struct device *dev;
struct clk *clk;
struct fb_info *info;
void __iomem *reg_base;
dma_addr_t fb_start_dma;
u32 pseudo_palette[16];
int pix_fmt;
unsigned is_blanked:1;
unsigned panel_rbswap:1;
unsigned active:1;
};
/*
* PXA fb machine information
*/
struct pxa168fb_mach_info {
char id[16];
int num_modes;
struct fb_videomode *modes;
/*
* Pix_fmt
*/
unsigned pix_fmt;
/*
* I/O pin allocation.
*/
unsigned io_pin_allocation_mode:4;
/*
* Dumb panel -- assignment of R/G/B component info to the 24
* available external data lanes.
*/
unsigned dumb_mode:4;
unsigned panel_rgb_reverse_lanes:1;
/*
* Dumb panel -- GPIO output data.
*/
unsigned gpio_output_mask:8;
unsigned gpio_output_data:8;
/*
* Dumb panel -- configurable output signal polarity.
*/
unsigned invert_composite_blank:1;
unsigned invert_pix_val_ena:1;
unsigned invert_pixclock:1;
unsigned invert_vsync:1;
unsigned invert_hsync:1;
unsigned panel_rbswap:1;
unsigned active:1;
unsigned enable_lcd:1;
};
#endif /* __ASM_MACH_PXA168FB_H */