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[PATCH] fbdev: Add framebuffer and display update module support for pnx4008

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Add support for Display Update Module and RGB framebuffer device on Philips
PNX4008 ARM board.

Signed-off-by: Grigory Tolstolytkin <gtolstolytkin@ru.mvista.com>
Signed-off-by: Vitaly Wool <vitalywool@gmail.com>
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Vitaly Wool 2006-07-03 00:24:19 -07:00 committed by Linus Torvalds
parent 8320204ab4
commit 36c9366efd
8 changed files with 1502 additions and 0 deletions
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15
drivers/video/Kconfig
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@ -1557,6 +1557,21 @@ config FB_S3C2410_DEBUG
Turn on debugging messages. Note that you can set/unset at run time
through sysfs
config FB_PNX4008_DUM
tristate "Display Update Module support on Philips PNX4008 board"
depends on FB && ARCH_PNX4008
---help---
Say Y here to enable support for PNX4008 Display Update Module (DUM)
config FB_PNX4008_DUM_RGB
tristate "RGB Framebuffer support on Philips PNX4008 board"
depends on FB_PNX4008_DUM
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
---help---
Say Y here to enable support for PNX4008 RGB Framebuffer
config FB_VIRTUAL
tristate "Virtual Frame Buffer support (ONLY FOR TESTING!)"
depends on FB

2
drivers/video/Makefile
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@ -94,6 +94,8 @@ obj-$(CONFIG_FB_TX3912) += tx3912fb.o
obj-$(CONFIG_FB_S1D13XXX) += s1d13xxxfb.o
obj-$(CONFIG_FB_IMX) += imxfb.o
obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o
obj-$(CONFIG_FB_PNX4008_DUM) += pnx4008/
obj-$(CONFIG_FB_PNX4008_DUM_RGB) += pnx4008/
# Platform or fallback drivers go here
obj-$(CONFIG_FB_VESA) += vesafb.o

7
drivers/video/pnx4008/Makefile Normal file
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@ -0,0 +1,7 @@
#
# Makefile for the new PNX4008 framebuffer device driver
#
obj-$(CONFIG_FB_PNX4008_DUM) += sdum.o
obj-$(CONFIG_FB_PNX4008_DUM_RGB) += pnxrgbfb.o

211
drivers/video/pnx4008/dum.h Normal file
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@ -0,0 +1,211 @@
/*
* linux/drivers/video/pnx4008/dum.h
*
* Internal header for SDUM
*
* 2005 (c) Koninklijke Philips N.V. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
#ifndef __PNX008_DUM_H__
#define __PNX008_DUM_H__
#include <asm/arch/platform.h>
#define PNX4008_DUMCONF_VA_BASE IO_ADDRESS(PNX4008_DUMCONF_BASE)
#define PNX4008_DUM_MAIN_VA_BASE IO_ADDRESS(PNX4008_DUM_MAINCFG_BASE)
/* DUM CFG ADDRESSES */
#define DUM_CH_BASE_ADR (PNX4008_DUMCONF_VA_BASE + 0x00)
#define DUM_CH_MIN_ADR (PNX4008_DUMCONF_VA_BASE + 0x00)
#define DUM_CH_MAX_ADR (PNX4008_DUMCONF_VA_BASE + 0x04)
#define DUM_CH_CONF_ADR (PNX4008_DUMCONF_VA_BASE + 0x08)
#define DUM_CH_STAT_ADR (PNX4008_DUMCONF_VA_BASE + 0x0C)
#define DUM_CH_CTRL_ADR (PNX4008_DUMCONF_VA_BASE + 0x10)
#define CH_MARG (0x100 / sizeof(u32))
#define DUM_CH_MIN(i) (*((volatile u32 *)DUM_CH_MIN_ADR + (i) * CH_MARG))
#define DUM_CH_MAX(i) (*((volatile u32 *)DUM_CH_MAX_ADR + (i) * CH_MARG))
#define DUM_CH_CONF(i) (*((volatile u32 *)DUM_CH_CONF_ADR + (i) * CH_MARG))
#define DUM_CH_STAT(i) (*((volatile u32 *)DUM_CH_STAT_ADR + (i) * CH_MARG))
#define DUM_CH_CTRL(i) (*((volatile u32 *)DUM_CH_CTRL_ADR + (i) * CH_MARG))
#define DUM_CONF_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x00)
#define DUM_CTRL_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x04)
#define DUM_STAT_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x08)
#define DUM_DECODE_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x0C)
#define DUM_COM_BASE_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x10)
#define DUM_SYNC_C_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x14)
#define DUM_CLK_DIV_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x18)
#define DUM_DIRTY_LOW_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x20)
#define DUM_DIRTY_HIGH_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x24)
#define DUM_FORMAT_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x28)
#define DUM_WTCFG1_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x30)
#define DUM_RTCFG1_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x34)
#define DUM_WTCFG2_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x38)
#define DUM_RTCFG2_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x3C)
#define DUM_TCFG_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x40)
#define DUM_OUTP_FORMAT1_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x44)
#define DUM_OUTP_FORMAT2_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x48)
#define DUM_SYNC_MODE_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x4C)
#define DUM_SYNC_OUT_C_ADR (PNX4008_DUM_MAIN_VA_BASE + 0x50)
#define DUM_CONF (*(volatile u32 *)(DUM_CONF_ADR))
#define DUM_CTRL (*(volatile u32 *)(DUM_CTRL_ADR))
#define DUM_STAT (*(volatile u32 *)(DUM_STAT_ADR))
#define DUM_DECODE (*(volatile u32 *)(DUM_DECODE_ADR))
#define DUM_COM_BASE (*(volatile u32 *)(DUM_COM_BASE_ADR))
#define DUM_SYNC_C (*(volatile u32 *)(DUM_SYNC_C_ADR))
#define DUM_CLK_DIV (*(volatile u32 *)(DUM_CLK_DIV_ADR))
#define DUM_DIRTY_LOW (*(volatile u32 *)(DUM_DIRTY_LOW_ADR))
#define DUM_DIRTY_HIGH (*(volatile u32 *)(DUM_DIRTY_HIGH_ADR))
#define DUM_FORMAT (*(volatile u32 *)(DUM_FORMAT_ADR))
#define DUM_WTCFG1 (*(volatile u32 *)(DUM_WTCFG1_ADR))
#define DUM_RTCFG1 (*(volatile u32 *)(DUM_RTCFG1_ADR))
#define DUM_WTCFG2 (*(volatile u32 *)(DUM_WTCFG2_ADR))
#define DUM_RTCFG2 (*(volatile u32 *)(DUM_RTCFG2_ADR))
#define DUM_TCFG (*(volatile u32 *)(DUM_TCFG_ADR))
#define DUM_OUTP_FORMAT1 (*(volatile u32 *)(DUM_OUTP_FORMAT1_ADR))
#define DUM_OUTP_FORMAT2 (*(volatile u32 *)(DUM_OUTP_FORMAT2_ADR))
#define DUM_SYNC_MODE (*(volatile u32 *)(DUM_SYNC_MODE_ADR))
#define DUM_SYNC_OUT_C (*(volatile u32 *)(DUM_SYNC_OUT_C_ADR))
/* DUM SLAVE ADDRESSES */
#define DUM_SLAVE_WRITE_ADR (PNX4008_DUM_MAINCFG_BASE + 0x0000000)
#define DUM_SLAVE_READ1_I_ADR (PNX4008_DUM_MAINCFG_BASE + 0x1000000)
#define DUM_SLAVE_READ1_R_ADR (PNX4008_DUM_MAINCFG_BASE + 0x1000004)
#define DUM_SLAVE_READ2_I_ADR (PNX4008_DUM_MAINCFG_BASE + 0x1000008)
#define DUM_SLAVE_READ2_R_ADR (PNX4008_DUM_MAINCFG_BASE + 0x100000C)
#define DUM_SLAVE_WRITE_W ((volatile u32 *)(DUM_SLAVE_WRITE_ADR))
#define DUM_SLAVE_WRITE_HW ((volatile u16 *)(DUM_SLAVE_WRITE_ADR))
#define DUM_SLAVE_READ1_I ((volatile u8 *)(DUM_SLAVE_READ1_I_ADR))
#define DUM_SLAVE_READ1_R ((volatile u16 *)(DUM_SLAVE_READ1_R_ADR))
#define DUM_SLAVE_READ2_I ((volatile u8 *)(DUM_SLAVE_READ2_I_ADR))
#define DUM_SLAVE_READ2_R ((volatile u16 *)(DUM_SLAVE_READ2_R_ADR))
/* Sony display register addresses */
#define DISP_0_REG (0x00)
#define DISP_1_REG (0x01)
#define DISP_CAL_REG (0x20)
#define DISP_ID_REG (0x2A)
#define DISP_XMIN_L_REG (0x30)
#define DISP_XMIN_H_REG (0x31)
#define DISP_YMIN_REG (0x32)
#define DISP_XMAX_L_REG (0x34)
#define DISP_XMAX_H_REG (0x35)
#define DISP_YMAX_REG (0x36)
#define DISP_SYNC_EN_REG (0x38)
#define DISP_SYNC_RISE_L_REG (0x3C)
#define DISP_SYNC_RISE_H_REG (0x3D)
#define DISP_SYNC_FALL_L_REG (0x3E)
#define DISP_SYNC_FALL_H_REG (0x3F)
#define DISP_PIXEL_REG (0x0B)
#define DISP_DUMMY1_REG (0x28)
#define DISP_DUMMY2_REG (0x29)
#define DISP_TIMING_REG (0x98)
#define DISP_DUMP_REG (0x99)
/* Sony display constants */
#define SONY_ID1 (0x22)
#define SONY_ID2 (0x23)
/* Philips display register addresses */
#define PH_DISP_ORIENT_REG (0x003)
#define PH_DISP_YPOINT_REG (0x200)
#define PH_DISP_XPOINT_REG (0x201)
#define PH_DISP_PIXEL_REG (0x202)
#define PH_DISP_YMIN_REG (0x406)
#define PH_DISP_YMAX_REG (0x407)
#define PH_DISP_XMIN_REG (0x408)
#define PH_DISP_XMAX_REG (0x409)
/* Misc constants */
#define NO_VALID_DISPLAY_FOUND (0)
#define DISPLAY2_IS_NOT_CONNECTED (0)
/* register values */
#define V_BAC_ENABLE (BIT(0))
#define V_BAC_DISABLE_IDLE (BIT(1))
#define V_BAC_DISABLE_TRIG (BIT(2))
#define V_DUM_RESET (BIT(3))
#define V_MUX_RESET (BIT(4))
#define BAC_ENABLED (BIT(0))
#define BAC_DISABLED 0
/* Sony LCD commands */
#define V_LCD_STANDBY_OFF ((BIT(25)) | (0 << 16) | DISP_0_REG)
#define V_LCD_USE_9BIT_BUS ((BIT(25)) | (2 << 16) | DISP_1_REG)
#define V_LCD_SYNC_RISE_L ((BIT(25)) | (0 << 16) | DISP_SYNC_RISE_L_REG)
#define V_LCD_SYNC_RISE_H ((BIT(25)) | (0 << 16) | DISP_SYNC_RISE_H_REG)
#define V_LCD_SYNC_FALL_L ((BIT(25)) | (160 << 16) | DISP_SYNC_FALL_L_REG)
#define V_LCD_SYNC_FALL_H ((BIT(25)) | (0 << 16) | DISP_SYNC_FALL_H_REG)
#define V_LCD_SYNC_ENABLE ((BIT(25)) | (128 << 16) | DISP_SYNC_EN_REG)
#define V_LCD_DISPLAY_ON ((BIT(25)) | (64 << 16) | DISP_0_REG)
enum {
PAD_NONE,
PAD_512,
PAD_1024
};
enum {
RGB888,
RGB666,
RGB565,
BGR565,
ARGB1555,
ABGR1555,
ARGB4444,
ABGR4444
};
struct dum_setup {
int sync_neg_edge;
int round_robin;
int mux_int;
int synced_dirty_flag_int;
int dirty_flag_int;
int error_int;
int pf_empty_int;
int sf_empty_int;
int bac_dis_int;
u32 dirty_base_adr;
u32 command_base_adr;
u32 sync_clk_div;
int sync_output;
u32 sync_restart_val;
u32 set_sync_high;
u32 set_sync_low;
};
struct dum_ch_setup {
int disp_no;
u32 xmin;
u32 ymin;
u32 xmax;
u32 ymax;
int xmirror;
int ymirror;
int rotate;
u32 minadr;
u32 maxadr;
u32 dirtybuffer;
int pad;
int format;
int hwdirty;
int slave_trans;
};
struct disp_window {
u32 xmin_l;
u32 xmin_h;
u32 ymin;
u32 xmax_l;
u32 xmax_h;
u32 ymax;
};
#endif /* #ifndef __PNX008_DUM_H__ */

43
drivers/video/pnx4008/fbcommon.h Normal file
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@ -0,0 +1,43 @@
/*
* Copyright (C) 2005 Philips Semiconductors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA, or http://www.gnu.org/licenses/gpl.html
*/
#define QCIF_W (176)
#define QCIF_H (144)
#define CIF_W (352)
#define CIF_H (288)
#define LCD_X_RES 208
#define LCD_Y_RES 320
#define LCD_X_PAD 256
#define LCD_BBP 4 /* Bytes Per Pixel */
#define DISP_MAX_X_SIZE (320)
#define DISP_MAX_Y_SIZE (208)
#define RETURNVAL_BASE (0x400)
enum fb_ioctl_returntype {
ENORESOURCESLEFT = RETURNVAL_BASE,
ERESOURCESNOTFREED,
EPROCNOTOWNER,
EFBNOTOWNER,
ECOPYFAILED,
EIOREMAPFAILED,
};

213
drivers/video/pnx4008/pnxrgbfb.c Normal file
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@ -0,0 +1,213 @@
/*
* drivers/video/pnx4008/pnxrgbfb.c
*
* PNX4008's framebuffer support
*
* Author: Grigory Tolstolytkin <gtolstolytkin@ru.mvista.com>
* Based on Philips Semiconductors's code
*
* Copyrght (c) 2005 MontaVista Software, Inc.
* Copyright (c) 2005 Philips Semiconductors
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <asm/uaccess.h>
#include "sdum.h"
#include "fbcommon.h"
static u32 colreg[16];
static struct fb_var_screeninfo rgbfb_var __initdata = {
.xres = LCD_X_RES,
.yres = LCD_Y_RES,
.xres_virtual = LCD_X_RES,
.yres_virtual = LCD_Y_RES,
.bits_per_pixel = 32,
.red.offset = 16,
.red.length = 8,
.green.offset = 8,
.green.length = 8,
.blue.offset = 0,
.blue.length = 8,
.left_margin = 0,
.right_margin = 0,
.upper_margin = 0,
.lower_margin = 0,
.vmode = FB_VMODE_NONINTERLACED,
};
static struct fb_fix_screeninfo rgbfb_fix __initdata = {
.id = "RGBFB",
.line_length = LCD_X_RES * LCD_BBP,
.type = FB_TYPE_PACKED_PIXELS,
.visual = FB_VISUAL_TRUECOLOR,
.xpanstep = 0,
.ypanstep = 0,
.ywrapstep = 0,
.accel = FB_ACCEL_NONE,
};
static int channel_owned;
static int no_cursor(struct fb_info *info, struct fb_cursor *cursor)
{
return 0;
}
static int rgbfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
u_int transp, struct fb_info *info)
{
if (regno > 15)
return 1;
colreg[regno] = ((red & 0xff00) << 8) | (green & 0xff00) |
((blue & 0xff00) >> 8);
return 0;
}
static int rgbfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
{
return pnx4008_sdum_mmap(info, vma, NULL);
}
static struct fb_ops rgbfb_ops = {
.fb_mmap = rgbfb_mmap,
.fb_setcolreg = rgbfb_setcolreg,
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
};
static int rgbfb_remove(struct platform_device *pdev)
{
struct fb_info *info = platform_get_drvdata(pdev);
if (info) {
unregister_framebuffer(info);
fb_dealloc_cmap(&info->cmap);
framebuffer_release(info);
platform_set_drvdata(pdev, NULL);
kfree(info);
}
pnx4008_free_dum_channel(channel_owned, pdev->id);
pnx4008_set_dum_exit_notification(pdev->id);
return 0;
}
static int __devinit rgbfb_probe(struct platform_device *pdev)
{
struct fb_info *info;
struct dumchannel_uf chan_uf;
int ret;
char *option;
info = framebuffer_alloc(sizeof(u32) * 16, &pdev->dev);
if (!info) {
ret = -ENOMEM;
goto err;
}
pnx4008_get_fb_addresses(FB_TYPE_RGB, (void **)&info->screen_base,
(dma_addr_t *) &rgbfb_fix.smem_start,
&rgbfb_fix.smem_len);
if ((ret = pnx4008_alloc_dum_channel(pdev->id)) < 0)
goto err0;
else {
channel_owned = ret;
chan_uf.channelnr = channel_owned;
chan_uf.dirty = (u32 *) NULL;
chan_uf.source = (u32 *) rgbfb_fix.smem_start;
chan_uf.x_offset = 0;
chan_uf.y_offset = 0;
chan_uf.width = LCD_X_RES;
chan_uf.height = LCD_Y_RES;
if ((ret = pnx4008_put_dum_channel_uf(chan_uf, pdev->id))< 0)
goto err1;
if ((ret =
pnx4008_set_dum_channel_sync(channel_owned, CONF_SYNC_ON,
pdev->id)) < 0)
goto err1;
if ((ret =
pnx4008_set_dum_channel_dirty_detect(channel_owned,
CONF_DIRTYDETECTION_ON,
pdev->id)) < 0)
goto err1;
}
if (!fb_get_options("pnxrgbfb", &option) && !strcmp(option, "nocursor"))
rgbfb_ops.fb_cursor = no_cursor;
info->node = -1;
info->flags = FBINFO_FLAG_DEFAULT;
info->fbops = &rgbfb_ops;
info->fix = rgbfb_fix;
info->var = rgbfb_var;
info->screen_size = rgbfb_fix.smem_len;
info->pseudo_palette = info->par;
info->par = NULL;
ret = fb_alloc_cmap(&info->cmap, 256, 0);
if (ret < 0)
goto err2;
ret = register_framebuffer(info);
if (ret < 0)
goto err3;
platform_set_drvdata(pdev, info);
return 0;
err3:
fb_dealloc_cmap(&info->cmap);
err2:
framebuffer_release(info);
err1:
pnx4008_free_dum_channel(channel_owned, pdev->id);
err0:
kfree(info);
err:
return ret;
}
static struct platform_driver rgbfb_driver = {
.driver = {
.name = "rgbfb",
},
.probe = rgbfb_probe,
.remove = rgbfb_remove,
};
static int __init rgbfb_init(void)
{
return platform_driver_register(&rgbfb_driver);
}
static void __exit rgbfb_exit(void)
{
platform_driver_unregister(&rgbfb_driver);
}
module_init(rgbfb_init);
module_exit(rgbfb_exit);
MODULE_LICENSE("GPL");

872
drivers/video/pnx4008/sdum.c Normal file
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@ -0,0 +1,872 @@
/*
* drivers/video/pnx4008/sdum.c
*
* Display Update Master support
*
* Authors: Grigory Tolstolytkin <gtolstolytkin@ru.mvista.com>
* Vitaly Wool <vitalywool@gmail.com>
* Based on Philips Semiconductors's code
*
* Copyrght (c) 2005-2006 MontaVista Software, Inc.
* Copyright (c) 2005 Philips Semiconductors
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/tty.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/dma-mapping.h>
#include <linux/clk.h>
#include <asm/uaccess.h>
#include <asm/arch/gpio.h>
#include "sdum.h"
#include "fbcommon.h"
#include "dum.h"
/* Framebuffers we have */
static struct pnx4008_fb_addr {
int fb_type;
long addr_offset;
long fb_length;
} fb_addr[] = {
[0] = {
FB_TYPE_YUV, 0, 0xB0000
},
[1] = {
FB_TYPE_RGB, 0xB0000, 0x50000
},
};
static struct dum_data {
u32 lcd_phys_start;
u32 lcd_virt_start;
u32 slave_phys_base;
u32 *slave_virt_base;
int fb_owning_channel[MAX_DUM_CHANNELS];
struct dumchannel_uf chan_uf_store[MAX_DUM_CHANNELS];
} dum_data;
/* Different local helper functions */
static u32 nof_pixels_dx(struct dum_ch_setup *ch_setup)
{
return (ch_setup->xmax - ch_setup->xmin + 1);
}
static u32 nof_pixels_dy(struct dum_ch_setup *ch_setup)
{
return (ch_setup->ymax - ch_setup->ymin + 1);
}
static u32 nof_pixels_dxy(struct dum_ch_setup *ch_setup)
{
return (nof_pixels_dx(ch_setup) * nof_pixels_dy(ch_setup));
}
static u32 nof_bytes(struct dum_ch_setup *ch_setup)
{
u32 r = nof_pixels_dxy(ch_setup);
switch (ch_setup->format) {
case RGB888:
case RGB666:
r *= 4;
break;
default:
r *= 2;
break;
}
return r;
}
static u32 build_command(int disp_no, u32 reg, u32 val)
{
return ((disp_no << 26) | BIT(25) | (val << 16) | (disp_no << 10) |
(reg << 0));
}
static u32 build_double_index(int disp_no, u32 val)
{
return ((disp_no << 26) | (val << 16) | (disp_no << 10) | (val << 0));
}
static void build_disp_window(struct dum_ch_setup * ch_setup, struct disp_window * dw)
{
dw->ymin = ch_setup->ymin;
dw->ymax = ch_setup->ymax;
dw->xmin_l = ch_setup->xmin & 0xFF;
dw->xmin_h = (ch_setup->xmin & BIT(8)) >> 8;
dw->xmax_l = ch_setup->xmax & 0xFF;
dw->xmax_h = (ch_setup->xmax & BIT(8)) >> 8;
}
static int put_channel(struct dumchannel chan)
{
int i = chan.channelnr;
if (i < 0 || i > MAX_DUM_CHANNELS)
return -EINVAL;
else {
DUM_CH_MIN(i) = chan.dum_ch_min;
DUM_CH_MAX(i) = chan.dum_ch_max;
DUM_CH_CONF(i) = chan.dum_ch_conf;
DUM_CH_CTRL(i) = chan.dum_ch_ctrl;
}
return 0;
}
static void clear_channel(int channr)
{
struct dumchannel chan;
chan.channelnr = channr;
chan.dum_ch_min = 0;
chan.dum_ch_max = 0;
chan.dum_ch_conf = 0;
chan.dum_ch_ctrl = 0;
put_channel(chan);
}
static int put_cmd_string(struct cmdstring cmds)
{
u16 *cmd_str_virtaddr;
u32 *cmd_ptr0_virtaddr;
u32 cmd_str_physaddr;
int i = cmds.channelnr;
if (i < 0 || i > MAX_DUM_CHANNELS)
return -EINVAL;
else if ((cmd_ptr0_virtaddr =
(int *)ioremap_nocache(DUM_COM_BASE,
sizeof(int) * MAX_DUM_CHANNELS)) ==
NULL)
return -EIOREMAPFAILED;
else {
cmd_str_physaddr = ioread32(&cmd_ptr0_virtaddr[cmds.channelnr]);
if ((cmd_str_virtaddr =
(u16 *) ioremap_nocache(cmd_str_physaddr,
sizeof(cmds))) == NULL) {
iounmap(cmd_ptr0_virtaddr);
return -EIOREMAPFAILED;
} else {
int t;
for (t = 0; t < 8; t++)
iowrite16(*((u16 *)&cmds.prestringlen + t),
cmd_str_virtaddr + t);
for (t = 0; t < cmds.prestringlen / 2; t++)
iowrite16(*((u16 *)&cmds.precmd + t),
cmd_str_virtaddr + t + 8);
for (t = 0; t < cmds.poststringlen / 2; t++)
iowrite16(*((u16 *)&cmds.postcmd + t),
cmd_str_virtaddr + t + 8 +
cmds.prestringlen / 2);
iounmap(cmd_ptr0_virtaddr);
iounmap(cmd_str_virtaddr);
}
}
return 0;
}
static u32 dum_ch_setup(int ch_no, struct dum_ch_setup * ch_setup)
{
struct cmdstring cmds_c;
struct cmdstring *cmds = &cmds_c;
struct disp_window dw;
int standard;
u32 orientation = 0;
struct dumchannel chan = { 0 };
int ret;
if ((ch_setup->xmirror) || (ch_setup->ymirror) || (ch_setup->rotate)) {
standard = 0;
orientation = BIT(1); /* always set 9-bit-bus */
if (ch_setup->xmirror)
orientation |= BIT(4);
if (ch_setup->ymirror)
orientation |= BIT(3);
if (ch_setup->rotate)
orientation |= BIT(0);
} else
standard = 1;
cmds->channelnr = ch_no;
/* build command string header */
if (standard) {
cmds->prestringlen = 32;
cmds->poststringlen = 0;
} else {
cmds->prestringlen = 48;
cmds->poststringlen = 16;
}
cmds->format =
(u16) ((ch_setup->disp_no << 4) | (BIT(3)) | (ch_setup->format));
cmds->reserved = 0x0;
cmds->startaddr_low = (ch_setup->minadr & 0xFFFF);
cmds->startaddr_high = (ch_setup->minadr >> 16);
if ((ch_setup->minadr == 0) && (ch_setup->maxadr == 0)
&& (ch_setup->xmin == 0)
&& (ch_setup->ymin == 0) && (ch_setup->xmax == 0)
&& (ch_setup->ymax == 0)) {
cmds->pixdatlen_low = 0;
cmds->pixdatlen_high = 0;
} else {
u32 nbytes = nof_bytes(ch_setup);
cmds->pixdatlen_low = (nbytes & 0xFFFF);
cmds->pixdatlen_high = (nbytes >> 16);
}
if (ch_setup->slave_trans)
cmds->pixdatlen_high |= BIT(15);
/* build pre-string */
build_disp_window(ch_setup, &dw);
if (standard) {
cmds->precmd[0] =
build_command(ch_setup->disp_no, DISP_XMIN_L_REG, 0x99);
cmds->precmd[1] =
build_command(ch_setup->disp_no, DISP_XMIN_L_REG,
dw.xmin_l);
cmds->precmd[2] =
build_command(ch_setup->disp_no, DISP_XMIN_H_REG,
dw.xmin_h);
cmds->precmd[3] =
build_command(ch_setup->disp_no, DISP_YMIN_REG, dw.ymin);
cmds->precmd[4] =
build_command(ch_setup->disp_no, DISP_XMAX_L_REG,
dw.xmax_l);
cmds->precmd[5] =
build_command(ch_setup->disp_no, DISP_XMAX_H_REG,
dw.xmax_h);
cmds->precmd[6] =
build_command(ch_setup->disp_no, DISP_YMAX_REG, dw.ymax);
cmds->precmd[7] =
build_double_index(ch_setup->disp_no, DISP_PIXEL_REG);
} else {
if (dw.xmin_l == ch_no)
cmds->precmd[0] =
build_command(ch_setup->disp_no, DISP_XMIN_L_REG,
0x99);
else
cmds->precmd[0] =
build_command(ch_setup->disp_no, DISP_XMIN_L_REG,
ch_no);
cmds->precmd[1] =
build_command(ch_setup->disp_no, DISP_XMIN_L_REG,
dw.xmin_l);
cmds->precmd[2] =
build_command(ch_setup->disp_no, DISP_XMIN_H_REG,
dw.xmin_h);
cmds->precmd[3] =
build_command(ch_setup->disp_no, DISP_YMIN_REG, dw.ymin);
cmds->precmd[4] =
build_command(ch_setup->disp_no, DISP_XMAX_L_REG,
dw.xmax_l);
cmds->precmd[5] =
build_command(ch_setup->disp_no, DISP_XMAX_H_REG,
dw.xmax_h);
cmds->precmd[6] =
build_command(ch_setup->disp_no, DISP_YMAX_REG, dw.ymax);
cmds->precmd[7] =
build_command(ch_setup->disp_no, DISP_1_REG, orientation);
cmds->precmd[8] =
build_double_index(ch_setup->disp_no, DISP_PIXEL_REG);
cmds->precmd[9] =
build_double_index(ch_setup->disp_no, DISP_PIXEL_REG);
cmds->precmd[0xA] =
build_double_index(ch_setup->disp_no, DISP_PIXEL_REG);
cmds->precmd[0xB] =
build_double_index(ch_setup->disp_no, DISP_PIXEL_REG);
cmds->postcmd[0] =
build_command(ch_setup->disp_no, DISP_1_REG, BIT(1));
cmds->postcmd[1] =
build_command(ch_setup->disp_no, DISP_DUMMY1_REG, 1);
cmds->postcmd[2] =
build_command(ch_setup->disp_no, DISP_DUMMY1_REG, 2);
cmds->postcmd[3] =
build_command(ch_setup->disp_no, DISP_DUMMY1_REG, 3);
}
if ((ret = put_cmd_string(cmds_c)) != 0) {
return ret;
}
chan.channelnr = cmds->channelnr;
chan.dum_ch_min = ch_setup->dirtybuffer + ch_setup->minadr;
chan.dum_ch_max = ch_setup->dirtybuffer + ch_setup->maxadr;
chan.dum_ch_conf = 0x002;
chan.dum_ch_ctrl = 0x04;
put_channel(chan);
return 0;
}
static u32 display_open(int ch_no, int auto_update, u32 * dirty_buffer,
u32 * frame_buffer, u32 xpos, u32 ypos, u32 w, u32 h)
{
struct dum_ch_setup k;
int ret;
/* keep width & height within display area */
if ((xpos + w) > DISP_MAX_X_SIZE)
w = DISP_MAX_X_SIZE - xpos;
if ((ypos + h) > DISP_MAX_Y_SIZE)
h = DISP_MAX_Y_SIZE - ypos;
/* assume 1 display only */
k.disp_no = 0;
k.xmin = xpos;
k.ymin = ypos;
k.xmax = xpos + (w - 1);
k.ymax = ypos + (h - 1);
/* adjust min and max values if necessary */
if (k.xmin > DISP_MAX_X_SIZE - 1)
k.xmin = DISP_MAX_X_SIZE - 1;
if (k.ymin > DISP_MAX_Y_SIZE - 1)
k.ymin = DISP_MAX_Y_SIZE - 1;
if (k.xmax > DISP_MAX_X_SIZE - 1)
k.xmax = DISP_MAX_X_SIZE - 1;
if (k.ymax > DISP_MAX_Y_SIZE - 1)
k.ymax = DISP_MAX_Y_SIZE - 1;
k.xmirror = 0;
k.ymirror = 0;
k.rotate = 0;
k.minadr = (u32) frame_buffer;
k.maxadr = (u32) frame_buffer + (((w - 1) << 10) | ((h << 2) - 2));
k.pad = PAD_1024;
k.dirtybuffer = (u32) dirty_buffer;
k.format = RGB888;
k.hwdirty = 0;
k.slave_trans = 0;
ret = dum_ch_setup(ch_no, &k);
return ret;
}
static void lcd_reset(void)
{
u32 *dum_pio_base = (u32 *)IO_ADDRESS(PNX4008_PIO_BASE);
udelay(1);
iowrite32(BIT(19), &dum_pio_base[2]);
udelay(1);
iowrite32(BIT(19), &dum_pio_base[1]);
udelay(1);
}
static int dum_init(struct platform_device *pdev)
{
struct clk *clk;
/* enable DUM clock */
clk = clk_get(&pdev->dev, "dum_ck");
if (IS_ERR(clk)) {
printk(KERN_ERR "pnx4008_dum: Unable to access DUM clock\n");
return PTR_ERR(clk);
}
clk_set_rate(clk, 1);
clk_put(clk);
DUM_CTRL = V_DUM_RESET;
/* set priority to "round-robin". All other params to "false" */
DUM_CONF = BIT(9);
/* Display 1 */
DUM_WTCFG1 = PNX4008_DUM_WT_CFG;
DUM_RTCFG1 = PNX4008_DUM_RT_CFG;
DUM_TCFG = PNX4008_DUM_T_CFG;
return 0;
}
static void dum_chan_init(void)
{
int i = 0, ch = 0;
u32 *cmdptrs;
u32 *cmdstrings;
DUM_COM_BASE =
CMDSTRING_BASEADDR + BYTES_PER_CMDSTRING * NR_OF_CMDSTRINGS;
if ((cmdptrs =
(u32 *) ioremap_nocache(DUM_COM_BASE,
sizeof(u32) * NR_OF_CMDSTRINGS)) == NULL)
return;
for (ch = 0; ch < NR_OF_CMDSTRINGS; ch++)
iowrite32(CMDSTRING_BASEADDR + BYTES_PER_CMDSTRING * ch,
cmdptrs + ch);
for (ch = 0; ch < MAX_DUM_CHANNELS; ch++)
clear_channel(ch);
/* Clear the cmdstrings */
cmdstrings =
(u32 *)ioremap_nocache(*cmdptrs,
BYTES_PER_CMDSTRING * NR_OF_CMDSTRINGS);
if (!cmdstrings)
goto out;
for (i = 0; i < NR_OF_CMDSTRINGS * BYTES_PER_CMDSTRING / sizeof(u32);
i++)
iowrite32(0, cmdstrings + i);
iounmap((u32 *)cmdstrings);
out:
iounmap((u32 *)cmdptrs);
}
static void lcd_init(void)
{
lcd_reset();
DUM_OUTP_FORMAT1 = 0; /* RGB666 */
udelay(1);
iowrite32(V_LCD_STANDBY_OFF, dum_data.slave_virt_base);
udelay(1);
iowrite32(V_LCD_USE_9BIT_BUS, dum_data.slave_virt_base);
udelay(1);
iowrite32(V_LCD_SYNC_RISE_L, dum_data.slave_virt_base);
udelay(1);
iowrite32(V_LCD_SYNC_RISE_H, dum_data.slave_virt_base);
udelay(1);
iowrite32(V_LCD_SYNC_FALL_L, dum_data.slave_virt_base);
udelay(1);
iowrite32(V_LCD_SYNC_FALL_H, dum_data.slave_virt_base);
udelay(1);
iowrite32(V_LCD_SYNC_ENABLE, dum_data.slave_virt_base);
udelay(1);
iowrite32(V_LCD_DISPLAY_ON, dum_data.slave_virt_base);
udelay(1);
}
/* Interface exported to framebuffer drivers */
int pnx4008_get_fb_addresses(int fb_type, void **virt_addr,
dma_addr_t *phys_addr, int *fb_length)
{
int i;
int ret = -1;
for (i = 0; i < ARRAY_SIZE(fb_addr); i++)
if (fb_addr[i].fb_type == fb_type) {
*virt_addr = (void *)(dum_data.lcd_virt_start +
fb_addr[i].addr_offset);
*phys_addr =
dum_data.lcd_phys_start + fb_addr[i].addr_offset;
*fb_length = fb_addr[i].fb_length;
ret = 0;
break;
}
return ret;
}
EXPORT_SYMBOL(pnx4008_get_fb_addresses);
int pnx4008_alloc_dum_channel(int dev_id)
{
int i = 0;
while ((i < MAX_DUM_CHANNELS) && (dum_data.fb_owning_channel[i] != -1))
i++;
if (i == MAX_DUM_CHANNELS)
return -ENORESOURCESLEFT;
else {
dum_data.fb_owning_channel[i] = dev_id;
return i;
}
}
EXPORT_SYMBOL(pnx4008_alloc_dum_channel);
int pnx4008_free_dum_channel(int channr, int dev_id)
{
if (channr < 0 || channr > MAX_DUM_CHANNELS)
return -EINVAL;
else if (dum_data.fb_owning_channel[channr] != dev_id)
return -EFBNOTOWNER;
else {
clear_channel(channr);
dum_data.fb_owning_channel[channr] = -1;
}
return 0;
}
EXPORT_SYMBOL(pnx4008_free_dum_channel);
int pnx4008_put_dum_channel_uf(struct dumchannel_uf chan_uf, int dev_id)
{
int i = chan_uf.channelnr;
int ret;
if (i < 0 || i > MAX_DUM_CHANNELS)
return -EINVAL;
else if (dum_data.fb_owning_channel[i] != dev_id)
return -EFBNOTOWNER;
else if ((ret =
display_open(chan_uf.channelnr, 0, chan_uf.dirty,
chan_uf.source, chan_uf.y_offset,
chan_uf.x_offset, chan_uf.height,
chan_uf.width)) != 0)
return ret;
else {
dum_data.chan_uf_store[i].dirty = chan_uf.dirty;
dum_data.chan_uf_store[i].source = chan_uf.source;
dum_data.chan_uf_store[i].x_offset = chan_uf.x_offset;
dum_data.chan_uf_store[i].y_offset = chan_uf.y_offset;
dum_data.chan_uf_store[i].width = chan_uf.width;
dum_data.chan_uf_store[i].height = chan_uf.height;
}
return 0;
}
EXPORT_SYMBOL(pnx4008_put_dum_channel_uf);
int pnx4008_set_dum_channel_sync(int channr, int val, int dev_id)
{
if (channr < 0 || channr > MAX_DUM_CHANNELS)
return -EINVAL;
else if (dum_data.fb_owning_channel[channr] != dev_id)
return -EFBNOTOWNER;
else {
if (val == CONF_SYNC_ON) {
DUM_CH_CONF(channr) |= CONF_SYNCENABLE;
DUM_CH_CONF(channr) |= DUM_CHANNEL_CFG_SYNC_MASK |
DUM_CHANNEL_CFG_SYNC_MASK_SET;
} else if (val == CONF_SYNC_OFF)
DUM_CH_CONF(channr) &= ~CONF_SYNCENABLE;
else
return -EINVAL;
}
return 0;
}
EXPORT_SYMBOL(pnx4008_set_dum_channel_sync);
int pnx4008_set_dum_channel_dirty_detect(int channr, int val, int dev_id)
{
if (channr < 0 || channr > MAX_DUM_CHANNELS)
return -EINVAL;
else if (dum_data.fb_owning_channel[channr] != dev_id)
return -EFBNOTOWNER;
else {
if (val == CONF_DIRTYDETECTION_ON)
DUM_CH_CONF(channr) |= CONF_DIRTYENABLE;
else if (val == CONF_DIRTYDETECTION_OFF)
DUM_CH_CONF(channr) &= ~CONF_DIRTYENABLE;
else
return -EINVAL;
}
return 0;
}
EXPORT_SYMBOL(pnx4008_set_dum_channel_dirty_detect);
#if 0 /* Functions not used currently, but likely to be used in future */
static int get_channel(struct dumchannel *p_chan)
{
int i = p_chan->channelnr;
if (i < 0 || i > MAX_DUM_CHANNELS)
return -EINVAL;
else {
p_chan->dum_ch_min = DUM_CH_MIN(i);
p_chan->dum_ch_max = DUM_CH_MAX(i);
p_chan->dum_ch_conf = DUM_CH_CONF(i);
p_chan->dum_ch_stat = DUM_CH_STAT(i);
p_chan->dum_ch_ctrl = 0; /* WriteOnly control register */
}
return 0;
}
int pnx4008_get_dum_channel_uf(struct dumchannel_uf *p_chan_uf, int dev_id)
{
int i = p_chan_uf->channelnr;
if (i < 0 || i > MAX_DUM_CHANNELS)
return -EINVAL;
else if (dum_data.fb_owning_channel[i] != dev_id)
return -EFBNOTOWNER;
else {
p_chan_uf->dirty = dum_data.chan_uf_store[i].dirty;
p_chan_uf->source = dum_data.chan_uf_store[i].source;
p_chan_uf->x_offset = dum_data.chan_uf_store[i].x_offset;
p_chan_uf->y_offset = dum_data.chan_uf_store[i].y_offset;
p_chan_uf->width = dum_data.chan_uf_store[i].width;
p_chan_uf->height = dum_data.chan_uf_store[i].height;
}
return 0;
}
EXPORT_SYMBOL(pnx4008_get_dum_channel_uf);
int pnx4008_get_dum_channel_config(int channr, int dev_id)
{
int ret;
struct dumchannel chan;
if (channr < 0 || channr > MAX_DUM_CHANNELS)
return -EINVAL;
else if (dum_data.fb_owning_channel[channr] != dev_id)
return -EFBNOTOWNER;
else {
chan.channelnr = channr;
if ((ret = get_channel(&chan)) != 0)
return ret;
}
return (chan.dum_ch_conf & DUM_CHANNEL_CFG_MASK);
}
EXPORT_SYMBOL(pnx4008_get_dum_channel_config);
int pnx4008_force_update_dum_channel(int channr, int dev_id)
{
if (channr < 0 || channr > MAX_DUM_CHANNELS)
return -EINVAL;
else if (dum_data.fb_owning_channel[channr] != dev_id)
return -EFBNOTOWNER;
else
DUM_CH_CTRL(channr) = CTRL_SETDIRTY;
return 0;
}
EXPORT_SYMBOL(pnx4008_force_update_dum_channel);
#endif
int pnx4008_sdum_mmap(struct fb_info *info, struct vm_area_struct *vma,
struct device *dev)
{
unsigned long off = vma->vm_pgoff << PAGE_SHIFT;
if (off < info->fix.smem_len) {
vma->vm_pgoff += 1;
return dma_mmap_writecombine(dev, vma,
(void *)dum_data.lcd_virt_start,
dum_data.lcd_phys_start,
FB_DMA_SIZE);
}
return -EINVAL;
}
EXPORT_SYMBOL(pnx4008_sdum_mmap);
int pnx4008_set_dum_exit_notification(int dev_id)
{
int i;
for (i = 0; i < MAX_DUM_CHANNELS; i++)
if (dum_data.fb_owning_channel[i] == dev_id)
return -ERESOURCESNOTFREED;
return 0;
}
EXPORT_SYMBOL(pnx4008_set_dum_exit_notification);
/* Platform device driver for DUM */
static int sdum_suspend(struct platform_device *pdev, pm_message_t state)
{
int retval = 0;
struct clk *clk;
clk = clk_get(0, "dum_ck");
if (!IS_ERR(clk)) {
clk_set_rate(clk, 0);
clk_put(clk);
} else
retval = PTR_ERR(clk);
/* disable BAC */
DUM_CTRL = V_BAC_DISABLE_IDLE;
/* LCD standby & turn off display */
lcd_reset();
return retval;
}
static int sdum_resume(struct platform_device *pdev)
{
int retval = 0;
struct clk *clk;
clk = clk_get(0, "dum_ck");
if (!IS_ERR(clk)) {
clk_set_rate(clk, 1);
clk_put(clk);
} else
retval = PTR_ERR(clk);
/* wait for BAC disable */
DUM_CTRL = V_BAC_DISABLE_TRIG;
while (DUM_CTRL & BAC_ENABLED)
udelay(10);
/* re-init LCD */
lcd_init();
/* enable BAC and reset MUX */
DUM_CTRL = V_BAC_ENABLE;
udelay(1);
DUM_CTRL = V_MUX_RESET;
return 0;
}
static int __devinit sdum_probe(struct platform_device *pdev)
{
int ret = 0, i = 0;
/* map frame buffer */
dum_data.lcd_virt_start = (u32) dma_alloc_writecombine(&pdev->dev,
FB_DMA_SIZE,
&dum_data.lcd_phys_start,
GFP_KERNEL);
if (!dum_data.lcd_virt_start) {
ret = -ENOMEM;
goto out_3;
}
/* map slave registers */
dum_data.slave_phys_base = PNX4008_DUM_SLAVE_BASE;
dum_data.slave_virt_base =
(u32 *) ioremap_nocache(dum_data.slave_phys_base, sizeof(u32));
if (dum_data.slave_virt_base == NULL) {
ret = -ENOMEM;
goto out_2;
}
/* initialize DUM and LCD display */
ret = dum_init(pdev);
if (ret)
goto out_1;
dum_chan_init();
lcd_init();
DUM_CTRL = V_BAC_ENABLE;
udelay(1);
DUM_CTRL = V_MUX_RESET;
/* set decode address and sync clock divider */
DUM_DECODE = dum_data.lcd_phys_start & DUM_DECODE_MASK;
DUM_CLK_DIV = PNX4008_DUM_CLK_DIV;
for (i = 0; i < MAX_DUM_CHANNELS; i++)
dum_data.fb_owning_channel[i] = -1;
/*setup wakeup interrupt */
start_int_set_rising_edge(SE_DISP_SYNC_INT);
start_int_ack(SE_DISP_SYNC_INT);
start_int_umask(SE_DISP_SYNC_INT);
return 0;
out_1:
iounmap((void *)dum_data.slave_virt_base);
out_2:
dma_free_writecombine(&pdev->dev, FB_DMA_SIZE,
(void *)dum_data.lcd_virt_start,
dum_data.lcd_phys_start);
out_3:
return ret;
}
static int sdum_remove(struct platform_device *pdev)
{
struct clk *clk;
start_int_mask(SE_DISP_SYNC_INT);
clk = clk_get(0, "dum_ck");
if (!IS_ERR(clk)) {
clk_set_rate(clk, 0);
clk_put(clk);
}
iounmap((void *)dum_data.slave_virt_base);
dma_free_writecombine(&pdev->dev, FB_DMA_SIZE,
(void *)dum_data.lcd_virt_start,
dum_data.lcd_phys_start);
return 0;
}
static struct platform_driver sdum_driver = {
.driver = {
.name = "sdum",
},
.probe = sdum_probe,
.remove = sdum_remove,
.suspend = sdum_suspend,
.resume = sdum_resume,
};
int __init sdum_init(void)
{
return platform_driver_register(&sdum_driver);
}
static void __exit sdum_exit(void)
{
platform_driver_unregister(&sdum_driver);
};
module_init(sdum_init);
module_exit(sdum_exit);
MODULE_LICENSE("GPL");

139
drivers/video/pnx4008/sdum.h Normal file
View File

@ -0,0 +1,139 @@
/*
* Copyright (C) 2005 Philips Semiconductors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA, or http://www.gnu.org/licenses/gpl.html
*/
#define MAX_DUM_CHANNELS 64
#define RGB_MEM_WINDOW(x) (0x10000000 + (x)*0x00100000)
#define QCIF_OFFSET(x) (((x) == 0) ? 0x00000: ((x) == 1) ? 0x30000: -1)
#define CIF_OFFSET(x) (((x) == 0) ? 0x00000: ((x) == 1) ? 0x60000: -1)
#define CTRL_SETDIRTY (0x00000001)
#define CONF_DIRTYENABLE (0x00000020)
#define CONF_SYNCENABLE (0x00000004)
#define DIRTY_ENABLED(conf) ((conf) & 0x0020)
#define SYNC_ENABLED(conf) ((conf) & 0x0004)
/* Display 1 & 2 Write Timing Configuration */
#define PNX4008_DUM_WT_CFG 0x00372000
/* Display 1 & 2 Read Timing Configuration */
#define PNX4008_DUM_RT_CFG 0x00003A47
/* DUM Transit State Timing Configuration */
#define PNX4008_DUM_T_CFG 0x1D /* 29 HCLK cycles */
/* DUM Sync count clock divider */
#define PNX4008_DUM_CLK_DIV 0x02DD
/* Memory size for framebuffer, allocated through dma_alloc_writecombine().
* Must be PAGE aligned
*/
#define FB_DMA_SIZE (PAGE_ALIGN(SZ_1M + PAGE_SIZE))
#define OFFSET_RGBBUFFER (0xB0000)
#define OFFSET_YUVBUFFER (0x00000)
#define YUVBUFFER (lcd_video_start + OFFSET_YUVBUFFER)
#define RGBBUFFER (lcd_video_start + OFFSET_RGBBUFFER)
#define CMDSTRING_BASEADDR (0x00C000) /* iram */
#define BYTES_PER_CMDSTRING (0x80)
#define NR_OF_CMDSTRINGS (64)
#define MAX_NR_PRESTRINGS (0x40)
#define MAX_NR_POSTSTRINGS (0x40)
/* various mask definitions */
#define DUM_CLK_ENABLE 0x01
#define DUM_CLK_DISABLE 0
#define DUM_DECODE_MASK 0x1FFFFFFF
#define DUM_CHANNEL_CFG_MASK 0x01FF
#define DUM_CHANNEL_CFG_SYNC_MASK 0xFFFE00FF
#define DUM_CHANNEL_CFG_SYNC_MASK_SET 0x0CA00
#define SDUM_RETURNVAL_BASE (0x500)
#define CONF_SYNC_OFF (0x602)
#define CONF_SYNC_ON (0x603)
#define CONF_DIRTYDETECTION_OFF (0x600)
#define CONF_DIRTYDETECTION_ON (0x601)
/* Set the corresponding bit. */
#define BIT(n) (0x1U << (n))
struct dumchannel_uf {
int channelnr;
u32 *dirty;
u32 *source;
u32 x_offset;
u32 y_offset;
u32 width;
u32 height;
};
enum {
FB_TYPE_YUV,
FB_TYPE_RGB
};
struct cmdstring {
int channelnr;
uint16_t prestringlen;
uint16_t poststringlen;
uint16_t format;
uint16_t reserved;
uint16_t startaddr_low;
uint16_t startaddr_high;
uint16_t pixdatlen_low;
uint16_t pixdatlen_high;
u32 precmd[MAX_NR_PRESTRINGS];
u32 postcmd[MAX_NR_POSTSTRINGS];
};
struct dumchannel {
int channelnr;
int dum_ch_min;
int dum_ch_max;
int dum_ch_conf;
int dum_ch_stat;
int dum_ch_ctrl;
};
int pnx4008_alloc_dum_channel(int dev_id);
int pnx4008_free_dum_channel(int channr, int dev_id);
int pnx4008_get_dum_channel_uf(struct dumchannel_uf *pChan_uf, int dev_id);
int pnx4008_put_dum_channel_uf(struct dumchannel_uf chan_uf, int dev_id);
int pnx4008_set_dum_channel_sync(int channr, int val, int dev_id);
int pnx4008_set_dum_channel_dirty_detect(int channr, int val, int dev_id);
int pnx4008_force_dum_update_channel(int channr, int dev_id);
int pnx4008_get_dum_channel_config(int channr, int dev_id);
int pnx4008_sdum_mmap(struct fb_info *info, struct vm_area_struct *vma, struct device *dev);
int pnx4008_set_dum_exit_notification(int dev_id);
int pnx4008_get_fb_addresses(int fb_type, void **virt_addr,
dma_addr_t * phys_addr, int *fb_length);