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initial pandora port, with hardware scaling and stuff

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This commit is contained in:
notaz
2011-09-04 20:02:19 +03:00
parent 43c24b301d
commit eb3668fc5d
16 changed files with 1472 additions and 34 deletions
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255
pandora/linux/fbdev.c Normal file
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/*
* (C) Gražvydas "notaz" Ignotas, 2009-2010
*
* This work is licensed under the terms of any of these licenses
* (at your option):
* - GNU GPL, version 2 or later.
* - GNU LGPL, version 2.1 or later.
* See the COPYING file in the top-level directory.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <unistd.h>
#include <linux/fb.h>
#include <linux/matroxfb.h>
#include "fbdev.h"
struct vout_fbdev {
int fd;
void *mem;
size_t mem_size;
struct fb_var_screeninfo fbvar_old;
struct fb_var_screeninfo fbvar_new;
int buffer_write;
int fb_size;
int buffer_count;
int top_border, bottom_border;
};
void *vout_fbdev_flip(struct vout_fbdev *fbdev)
{
int draw_buf;
if (fbdev->buffer_count < 2)
return fbdev->mem;
draw_buf = fbdev->buffer_write;
fbdev->buffer_write++;
if (fbdev->buffer_write >= fbdev->buffer_count)
fbdev->buffer_write = 0;
fbdev->fbvar_new.yoffset =
(fbdev->top_border + fbdev->fbvar_new.yres + fbdev->bottom_border) * draw_buf +
fbdev->top_border;
ioctl(fbdev->fd, FBIOPAN_DISPLAY, &fbdev->fbvar_new);
return (char *)fbdev->mem + fbdev->fb_size * fbdev->buffer_write;
}
void vout_fbdev_wait_vsync(struct vout_fbdev *fbdev)
{
int arg = 0;
ioctl(fbdev->fd, FBIO_WAITFORVSYNC, &arg);
}
/* it is recommended to call vout_fbdev_clear() before this */
void *vout_fbdev_resize(struct vout_fbdev *fbdev, int w, int h, int bpp,
int left_border, int right_border, int top_border, int bottom_border, int buffer_cnt)
{
int w_total = left_border + w + right_border;
int h_total = top_border + h + bottom_border;
size_t mem_size;
int ret;
// unblank to be sure the mode is really accepted
ioctl(fbdev->fd, FBIOBLANK, FB_BLANK_UNBLANK);
if (fbdev->fbvar_new.bits_per_pixel != bpp ||
fbdev->fbvar_new.xres != w ||
fbdev->fbvar_new.yres != h ||
fbdev->fbvar_new.xres_virtual != w_total||
fbdev->fbvar_new.yres_virtual < h_total ||
fbdev->fbvar_new.xoffset != left_border ||
fbdev->buffer_count != buffer_cnt)
{
if (fbdev->fbvar_new.bits_per_pixel != bpp ||
w != fbdev->fbvar_new.xres || h != fbdev->fbvar_new.yres)
printf(" switching to %dx%d@%d\n", w, h, bpp);
fbdev->fbvar_new.xres = w;
fbdev->fbvar_new.yres = h;
fbdev->fbvar_new.xres_virtual = w_total;
fbdev->fbvar_new.yres_virtual = h_total * buffer_cnt;
fbdev->fbvar_new.xoffset = left_border;
fbdev->fbvar_new.yoffset = top_border;
fbdev->fbvar_new.bits_per_pixel = bpp;
fbdev->fbvar_new.nonstd = 0; // can set YUV here on omapfb
fbdev->buffer_count = buffer_cnt;
fbdev->buffer_write = 1;
// seems to help a bit to avoid glitches
vout_fbdev_wait_vsync(fbdev);
ret = ioctl(fbdev->fd, FBIOPUT_VSCREENINFO, &fbdev->fbvar_new);
if (ret == -1) {
// retry with no multibuffering
fbdev->fbvar_new.yres_virtual = h_total;
ret = ioctl(fbdev->fd, FBIOPUT_VSCREENINFO, &fbdev->fbvar_new);
if (ret == -1) {
perror("FBIOPUT_VSCREENINFO ioctl");
return NULL;
}
fbdev->buffer_count = 1;
fbdev->buffer_write = 0;
fprintf(stderr, "Warning: failed to increase virtual resolution, "
"multibuffering disabled\n");
}
}
fbdev->fb_size = w_total * h_total * bpp / 8;
fbdev->top_border = top_border;
fbdev->bottom_border = bottom_border;
mem_size = fbdev->fb_size * fbdev->buffer_count;
if (fbdev->mem_size >= mem_size)
goto out;
if (fbdev->mem != NULL)
munmap(fbdev->mem, fbdev->mem_size);
fbdev->mem = mmap(0, mem_size, PROT_WRITE|PROT_READ, MAP_SHARED, fbdev->fd, 0);
if (fbdev->mem == MAP_FAILED && fbdev->buffer_count > 1) {
fprintf(stderr, "Warning: can't map %zd bytes, doublebuffering disabled\n", mem_size);
fbdev->buffer_count = 1;
fbdev->buffer_write = 0;
mem_size = fbdev->fb_size;
fbdev->mem = mmap(0, mem_size, PROT_WRITE|PROT_READ, MAP_SHARED, fbdev->fd, 0);
}
if (fbdev->mem == MAP_FAILED) {
fbdev->mem = NULL;
fbdev->mem_size = 0;
perror("mmap framebuffer");
return NULL;
}
fbdev->mem_size = mem_size;
out:
return (char *)fbdev->mem + fbdev->fb_size * fbdev->buffer_write;
}
void vout_fbdev_clear(struct vout_fbdev *fbdev)
{
memset(fbdev->mem, 0, fbdev->mem_size);
}
void vout_fbdev_clear_lines(struct vout_fbdev *fbdev, int y, int count)
{
int stride = fbdev->fbvar_new.xres_virtual * fbdev->fbvar_new.bits_per_pixel / 8;
int i;
if (y + count > fbdev->top_border + fbdev->fbvar_new.yres)
count = fbdev->top_border + fbdev->fbvar_new.yres - y;
if (y >= 0 && count > 0)
for (i = 0; i < fbdev->buffer_count; i++)
memset((char *)fbdev->mem + fbdev->fb_size * i + y * stride, 0, stride * count);
}
int vout_fbdev_get_fd(struct vout_fbdev *fbdev)
{
return fbdev->fd;
}
struct vout_fbdev *vout_fbdev_init(const char *fbdev_name, int *w, int *h, int bpp, int buffer_cnt)
{
struct vout_fbdev *fbdev;
int req_w, req_h;
void *pret;
int ret;
fbdev = calloc(1, sizeof(*fbdev));
if (fbdev == NULL)
return NULL;
fbdev->fd = open(fbdev_name, O_RDWR);
if (fbdev->fd == -1) {
fprintf(stderr, "%s: ", fbdev_name);
perror("open");
goto fail_open;
}
ret = ioctl(fbdev->fd, FBIOGET_VSCREENINFO, &fbdev->fbvar_old);
if (ret == -1) {
perror("FBIOGET_VSCREENINFO ioctl");
goto fail;
}
fbdev->fbvar_new = fbdev->fbvar_old;
req_w = fbdev->fbvar_new.xres;
if (*w != 0)
req_w = *w;
req_h = fbdev->fbvar_new.yres;
if (*h != 0)
req_h = *h;
pret = vout_fbdev_resize(fbdev, req_w, req_h, bpp, 0, 0, 0, 0, buffer_cnt);
if (pret == NULL)
goto fail;
printf("%s: %ix%i@%d\n", fbdev_name, fbdev->fbvar_new.xres, fbdev->fbvar_new.yres,
fbdev->fbvar_new.bits_per_pixel);
*w = fbdev->fbvar_new.xres;
*h = fbdev->fbvar_new.yres;
memset(fbdev->mem, 0, fbdev->mem_size);
// some checks
ret = 0;
ret = ioctl(fbdev->fd, FBIO_WAITFORVSYNC, &ret);
if (ret != 0)
fprintf(stderr, "Warning: vsync doesn't seem to be supported\n");
if (fbdev->buffer_count > 1) {
fbdev->buffer_write = 0;
fbdev->fbvar_new.yoffset = fbdev->fbvar_new.yres * (fbdev->buffer_count - 1);
ret = ioctl(fbdev->fd, FBIOPAN_DISPLAY, &fbdev->fbvar_new);
if (ret != 0) {
fbdev->buffer_count = 1;
fprintf(stderr, "Warning: can't pan display, doublebuffering disabled\n");
}
}
printf("fbdev initialized.\n");
return fbdev;
fail:
close(fbdev->fd);
fail_open:
free(fbdev);
return NULL;
}
void vout_fbdev_finish(struct vout_fbdev *fbdev)
{
ioctl(fbdev->fd, FBIOPUT_VSCREENINFO, &fbdev->fbvar_old);
if (fbdev->mem != MAP_FAILED)
munmap(fbdev->mem, fbdev->mem_size);
if (fbdev->fd >= 0)
close(fbdev->fd);
fbdev->mem = NULL;
fbdev->fd = -1;
free(fbdev);
}

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pandora/linux/fbdev.h Normal file
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struct vout_fbdev;
struct vout_fbdev *vout_fbdev_init(const char *fbdev_name, int *w, int *h, int bpp, int buffer_count);
void *vout_fbdev_flip(struct vout_fbdev *fbdev);
void vout_fbdev_wait_vsync(struct vout_fbdev *fbdev);
void *vout_fbdev_resize(struct vout_fbdev *fbdev, int w, int h, int bpp,
int left_border, int right_border, int top_border, int bottom_border,
int buffer_count);
void vout_fbdev_clear(struct vout_fbdev *fbdev);
void vout_fbdev_clear_lines(struct vout_fbdev *fbdev, int y, int count);
int vout_fbdev_get_fd(struct vout_fbdev *fbdev);
void vout_fbdev_finish(struct vout_fbdev *fbdev);

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pandora/linux/omapfb.h Normal file
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/*
* File: arch/arm/plat-omap/include/mach/omapfb.h
*
* Framebuffer driver for TI OMAP boards
*
* Copyright (C) 2004 Nokia Corporation
* Author: Imre Deak <imre.deak@nokia.com>
*
* 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 of the License, 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; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __OMAPFB_H
#define __OMAPFB_H
#include <asm/ioctl.h>
#include <asm/types.h>
/* IOCTL commands. */
#define OMAP_IOW(num, dtype) _IOW('O', num, dtype)
#define OMAP_IOR(num, dtype) _IOR('O', num, dtype)
#define OMAP_IOWR(num, dtype) _IOWR('O', num, dtype)
#define OMAP_IO(num) _IO('O', num)
#define OMAPFB_MIRROR OMAP_IOW(31, int)
#define OMAPFB_SYNC_GFX OMAP_IO(37)
#define OMAPFB_VSYNC OMAP_IO(38)
#define OMAPFB_SET_UPDATE_MODE OMAP_IOW(40, int)
#define OMAPFB_GET_CAPS OMAP_IOR(42, struct omapfb_caps)
#define OMAPFB_GET_UPDATE_MODE OMAP_IOW(43, int)
#define OMAPFB_LCD_TEST OMAP_IOW(45, int)
#define OMAPFB_CTRL_TEST OMAP_IOW(46, int)
#define OMAPFB_UPDATE_WINDOW_OLD OMAP_IOW(47, struct omapfb_update_window_old)
#define OMAPFB_SET_COLOR_KEY OMAP_IOW(50, struct omapfb_color_key)
#define OMAPFB_GET_COLOR_KEY OMAP_IOW(51, struct omapfb_color_key)
#define OMAPFB_SETUP_PLANE OMAP_IOW(52, struct omapfb_plane_info)
#define OMAPFB_QUERY_PLANE OMAP_IOW(53, struct omapfb_plane_info)
#define OMAPFB_UPDATE_WINDOW OMAP_IOW(54, struct omapfb_update_window)
#define OMAPFB_SETUP_MEM OMAP_IOW(55, struct omapfb_mem_info)
#define OMAPFB_QUERY_MEM OMAP_IOW(56, struct omapfb_mem_info)
#define OMAPFB_WAITFORVSYNC OMAP_IO(57)
#define OMAPFB_MEMORY_READ OMAP_IOR(58, struct omapfb_memory_read)
#ifndef FBIO_WAITFORVSYNC
#define FBIO_WAITFORVSYNC _IOW('F', 0x20, u_int32_t)
#endif
#define OMAPFB_CAPS_GENERIC_MASK 0x00000fff
#define OMAPFB_CAPS_LCDC_MASK 0x00fff000
#define OMAPFB_CAPS_PANEL_MASK 0xff000000
#define OMAPFB_CAPS_MANUAL_UPDATE 0x00001000
#define OMAPFB_CAPS_TEARSYNC 0x00002000
#define OMAPFB_CAPS_PLANE_RELOCATE_MEM 0x00004000
#define OMAPFB_CAPS_PLANE_SCALE 0x00008000
#define OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE 0x00010000
#define OMAPFB_CAPS_WINDOW_SCALE 0x00020000
#define OMAPFB_CAPS_WINDOW_OVERLAY 0x00040000
#define OMAPFB_CAPS_WINDOW_ROTATE 0x00080000
#define OMAPFB_CAPS_SET_BACKLIGHT 0x01000000
/* Values from DSP must map to lower 16-bits */
#define OMAPFB_FORMAT_MASK 0x00ff
#define OMAPFB_FORMAT_FLAG_DOUBLE 0x0100
#define OMAPFB_FORMAT_FLAG_TEARSYNC 0x0200
#define OMAPFB_FORMAT_FLAG_FORCE_VSYNC 0x0400
#define OMAPFB_FORMAT_FLAG_ENABLE_OVERLAY 0x0800
#define OMAPFB_FORMAT_FLAG_DISABLE_OVERLAY 0x1000
#define OMAPFB_EVENT_READY 1
#define OMAPFB_EVENT_DISABLED 2
#define OMAPFB_MEMTYPE_SDRAM 0
#define OMAPFB_MEMTYPE_SRAM 1
#define OMAPFB_MEMTYPE_MAX 1
enum omapfb_color_format {
OMAPFB_COLOR_RGB565 = 0,
OMAPFB_COLOR_YUV422,
OMAPFB_COLOR_YUV420,
OMAPFB_COLOR_CLUT_8BPP,
OMAPFB_COLOR_CLUT_4BPP,
OMAPFB_COLOR_CLUT_2BPP,
OMAPFB_COLOR_CLUT_1BPP,
OMAPFB_COLOR_RGB444,
OMAPFB_COLOR_YUY422,
OMAPFB_COLOR_ARGB16,
OMAPFB_COLOR_RGB24U, /* RGB24, 32-bit container */
OMAPFB_COLOR_RGB24P, /* RGB24, 24-bit container */
OMAPFB_COLOR_ARGB32,
OMAPFB_COLOR_RGBA32,
OMAPFB_COLOR_RGBX32,
};
struct omapfb_update_window {
__u32 x, y;
__u32 width, height;
__u32 format;
__u32 out_x, out_y;
__u32 out_width, out_height;
__u32 reserved[8];
};
struct omapfb_update_window_old {
__u32 x, y;
__u32 width, height;
__u32 format;
};
enum omapfb_plane {
OMAPFB_PLANE_GFX = 0,
OMAPFB_PLANE_VID1,
OMAPFB_PLANE_VID2,
};
enum omapfb_channel_out {
OMAPFB_CHANNEL_OUT_LCD = 0,
OMAPFB_CHANNEL_OUT_DIGIT,
};
struct omapfb_plane_info {
__u32 pos_x;
__u32 pos_y;
__u8 enabled;
__u8 channel_out;
__u8 mirror;
__u8 reserved1;
__u32 out_width;
__u32 out_height;
__u32 reserved2[12];
};
struct omapfb_mem_info {
__u32 size;
__u8 type;
__u8 reserved[3];
};
struct omapfb_caps {
__u32 ctrl;
__u32 plane_color;
__u32 wnd_color;
};
enum omapfb_color_key_type {
OMAPFB_COLOR_KEY_DISABLED = 0,
OMAPFB_COLOR_KEY_GFX_DST,
OMAPFB_COLOR_KEY_VID_SRC,
};
struct omapfb_color_key {
__u8 channel_out;
__u32 background;
__u32 trans_key;
__u8 key_type;
};
enum omapfb_update_mode {
OMAPFB_UPDATE_DISABLED = 0,
OMAPFB_AUTO_UPDATE,
OMAPFB_MANUAL_UPDATE
};
struct omapfb_memory_read {
__u16 x;
__u16 y;
__u16 w;
__u16 h;
size_t buffer_size;
void *buffer;
};
#ifdef __KERNEL__
#include <linux/completion.h>
#include <linux/interrupt.h>
#include <linux/fb.h>
#include <linux/mutex.h>
#include <mach/board.h>
#define OMAP_LCDC_INV_VSYNC 0x0001
#define OMAP_LCDC_INV_HSYNC 0x0002
#define OMAP_LCDC_INV_PIX_CLOCK 0x0004
#define OMAP_LCDC_INV_OUTPUT_EN 0x0008
#define OMAP_LCDC_HSVS_RISING_EDGE 0x0010
#define OMAP_LCDC_HSVS_OPPOSITE 0x0020
#define OMAP_LCDC_SIGNAL_MASK 0x003f
#define OMAP_LCDC_PANEL_TFT 0x0100
#define OMAPFB_PLANE_XRES_MIN 8
#define OMAPFB_PLANE_YRES_MIN 8
#ifdef CONFIG_ARCH_OMAP1
#define OMAPFB_PLANE_NUM 1
#else
#define OMAPFB_PLANE_NUM 3
#endif
struct omapfb_device;
struct lcd_panel {
const char *name;
int config; /* TFT/STN, signal inversion */
int bpp; /* Pixel format in fb mem */
int data_lines; /* Lines on LCD HW interface */
int x_res, y_res;
int pixel_clock; /* In kHz */
int hsw; /* Horizontal synchronization
pulse width */
int hfp; /* Horizontal front porch */
int hbp; /* Horizontal back porch */
int vsw; /* Vertical synchronization
pulse width */
int vfp; /* Vertical front porch */
int vbp; /* Vertical back porch */
int acb; /* ac-bias pin frequency */
int pcd; /* pixel clock divider.
Obsolete use pixel_clock instead */
int (*init) (struct lcd_panel *panel,
struct omapfb_device *fbdev);
void (*cleanup) (struct lcd_panel *panel);
int (*enable) (struct lcd_panel *panel);
void (*disable) (struct lcd_panel *panel);
unsigned long (*get_caps) (struct lcd_panel *panel);
int (*set_bklight_level)(struct lcd_panel *panel,
unsigned int level);
unsigned int (*get_bklight_level)(struct lcd_panel *panel);
unsigned int (*get_bklight_max) (struct lcd_panel *panel);
int (*run_test) (struct lcd_panel *panel, int test_num);
};
struct extif_timings {
int cs_on_time;
int cs_off_time;
int we_on_time;
int we_off_time;
int re_on_time;
int re_off_time;
int we_cycle_time;
int re_cycle_time;
int cs_pulse_width;
int access_time;
int clk_div;
u32 tim[5]; /* set by extif->convert_timings */
int converted;
};
struct lcd_ctrl_extif {
int (*init) (struct omapfb_device *fbdev);
void (*cleanup) (void);
void (*get_clk_info) (u32 *clk_period, u32 *max_clk_div);
unsigned long (*get_max_tx_rate)(void);
int (*convert_timings) (struct extif_timings *timings);
void (*set_timings) (const struct extif_timings *timings);
void (*set_bits_per_cycle)(int bpc);
void (*write_command) (const void *buf, unsigned int len);
void (*read_data) (void *buf, unsigned int len);
void (*write_data) (const void *buf, unsigned int len);
void (*transfer_area) (int width, int height,
void (callback)(void * data), void *data);
int (*setup_tearsync) (unsigned pin_cnt,
unsigned hs_pulse_time, unsigned vs_pulse_time,
int hs_pol_inv, int vs_pol_inv, int div);
int (*enable_tearsync) (int enable, unsigned line);
unsigned long max_transmit_size;
};
struct omapfb_notifier_block {
struct notifier_block nb;
void *data;
int plane_idx;
};
typedef int (*omapfb_notifier_callback_t)(struct notifier_block *,
unsigned long event,
void *fbi);
struct omapfb_mem_region {
u32 paddr;
void __iomem *vaddr;
unsigned long size;
u8 type; /* OMAPFB_PLANE_MEM_* */
enum omapfb_color_format format;/* OMAPFB_COLOR_* */
unsigned format_used:1; /* Must be set when format is set.
* Needed b/c of the badly chosen 0
* base for OMAPFB_COLOR_* values
*/
unsigned alloc:1; /* allocated by the driver */
unsigned map:1; /* kernel mapped by the driver */
};
struct omapfb_mem_desc {
int region_cnt;
struct omapfb_mem_region region[OMAPFB_PLANE_NUM];
};
struct lcd_ctrl {
const char *name;
void *data;
int (*init) (struct omapfb_device *fbdev,
int ext_mode,
struct omapfb_mem_desc *req_md);
void (*cleanup) (void);
void (*bind_client) (struct omapfb_notifier_block *nb);
void (*get_caps) (int plane, struct omapfb_caps *caps);
int (*set_update_mode)(enum omapfb_update_mode mode);
enum omapfb_update_mode (*get_update_mode)(void);
int (*setup_plane) (int plane, int channel_out,
unsigned long offset,
int screen_width,
int pos_x, int pos_y, int width,
int height, int color_mode);
int (*set_rotate) (int angle);
int (*setup_mem) (int plane, size_t size,
int mem_type, unsigned long *paddr);
int (*mmap) (struct fb_info *info,
struct vm_area_struct *vma);
int (*set_scale) (int plane,
int orig_width, int orig_height,
int out_width, int out_height);
int (*enable_plane) (int plane, int enable);
int (*update_window) (struct fb_info *fbi,
struct omapfb_update_window *win,
void (*callback)(void *),
void *callback_data);
void (*sync) (void);
void (*suspend) (void);
void (*resume) (void);
int (*run_test) (int test_num);
int (*setcolreg) (u_int regno, u16 red, u16 green,
u16 blue, u16 transp,
int update_hw_mem);
int (*set_color_key) (struct omapfb_color_key *ck);
int (*get_color_key) (struct omapfb_color_key *ck);
};
enum omapfb_state {
OMAPFB_DISABLED = 0,
OMAPFB_SUSPENDED= 99,
OMAPFB_ACTIVE = 100
};
struct omapfb_plane_struct {
int idx;
struct omapfb_plane_info info;
enum omapfb_color_format color_mode;
struct omapfb_device *fbdev;
};
struct omapfb_device {
int state;
int ext_lcdc; /* Using external
LCD controller */
struct mutex rqueue_mutex;
int palette_size;
u32 pseudo_palette[17];
struct lcd_panel *panel; /* LCD panel */
const struct lcd_ctrl *ctrl; /* LCD controller */
const struct lcd_ctrl *int_ctrl; /* internal LCD ctrl */
struct lcd_ctrl_extif *ext_if; /* LCD ctrl external
interface */
struct device *dev;
struct fb_var_screeninfo new_var; /* for mode changes */
struct omapfb_mem_desc mem_desc;
struct fb_info *fb_info[OMAPFB_PLANE_NUM];
};
struct omapfb_platform_data {
struct omap_lcd_config lcd;
struct omapfb_mem_desc mem_desc;
void *ctrl_platform_data;
};
#ifdef CONFIG_ARCH_OMAP1
extern struct lcd_ctrl omap1_lcd_ctrl;
#else
extern struct lcd_ctrl omap2_disp_ctrl;
#endif
extern void omapfb_set_platform_data(struct omapfb_platform_data *data);
extern void omapfb_reserve_sdram(void);
extern void omapfb_register_panel(struct lcd_panel *panel);
extern void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval);
extern void omapfb_notify_clients(struct omapfb_device *fbdev,
unsigned long event);
extern int omapfb_register_client(struct omapfb_notifier_block *nb,
omapfb_notifier_callback_t callback,
void *callback_data);
extern int omapfb_unregister_client(struct omapfb_notifier_block *nb);
extern int omapfb_update_window_async(struct fb_info *fbi,
struct omapfb_update_window *win,
void (*callback)(void *),
void *callback_data);
/* in arch/arm/plat-omap/fb.c */
extern void omapfb_set_ctrl_platform_data(void *pdata);
#endif /* __KERNEL__ */
#endif /* __OMAPFB_H */

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pandora/linux/xenv.c Normal file
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/*
* (C) Gražvydas "notaz" Ignotas, 2009-2011
*
* This work is licensed under the terms of any of these licenses
* (at your option):
* - GNU GPL, version 2 or later.
* - GNU LGPL, version 2.1 or later.
* See the COPYING file in the top-level directory.
*/
#include <stdio.h>
#include <string.h>
#include <pthread.h>
#include <dlfcn.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/XKBlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <termios.h>
#include <linux/kd.h>
#define PFX "xenv: "
#define FPTR(f) typeof(f) * p##f
#define FPTR_LINK(xf, dl, f) { \
xf.p##f = dlsym(dl, #f); \
if (xf.p##f == NULL) { \
fprintf(stderr, "missing symbol: %s\n", #f); \
goto fail; \
} \
}
struct xstuff {
Display *display;
FPTR(XCreateBitmapFromData);
FPTR(XCreatePixmapCursor);
FPTR(XFreePixmap);
FPTR(XOpenDisplay);
FPTR(XDisplayName);
FPTR(XCloseDisplay);
FPTR(XCreateSimpleWindow);
FPTR(XChangeWindowAttributes);
FPTR(XSelectInput);
FPTR(XMapWindow);
FPTR(XNextEvent);
FPTR(XCheckTypedEvent);
FPTR(XUnmapWindow);
FPTR(XGrabKeyboard);
FPTR(XPending);
FPTR(XLookupKeysym);
FPTR(XkbSetDetectableAutoRepeat);
};
static struct xstuff g_xstuff;
static Cursor transparent_cursor(struct xstuff *xf, Display *display, Window win)
{
Cursor cursor;
Pixmap pix;
XColor dummy;
char d = 0;
memset(&dummy, 0, sizeof(dummy));
pix = xf->pXCreateBitmapFromData(display, win, &d, 1, 1);
cursor = xf->pXCreatePixmapCursor(display, pix, pix,
&dummy, &dummy, 0, 0);
xf->pXFreePixmap(display, pix);
return cursor;
}
static int x11h_init(void)
{
unsigned int display_width, display_height;
Display *display;
XSetWindowAttributes attributes;
Window win;
Visual *visual;
void *x11lib;
int screen;
memset(&g_xstuff, 0, sizeof(g_xstuff));
x11lib = dlopen("libX11.so.6", RTLD_LAZY);
if (x11lib == NULL) {
fprintf(stderr, "libX11.so load failed:\n%s\n", dlerror());
goto fail;
}
FPTR_LINK(g_xstuff, x11lib, XCreateBitmapFromData);
FPTR_LINK(g_xstuff, x11lib, XCreatePixmapCursor);
FPTR_LINK(g_xstuff, x11lib, XFreePixmap);
FPTR_LINK(g_xstuff, x11lib, XOpenDisplay);
FPTR_LINK(g_xstuff, x11lib, XDisplayName);
FPTR_LINK(g_xstuff, x11lib, XCloseDisplay);
FPTR_LINK(g_xstuff, x11lib, XCreateSimpleWindow);
FPTR_LINK(g_xstuff, x11lib, XChangeWindowAttributes);
FPTR_LINK(g_xstuff, x11lib, XSelectInput);
FPTR_LINK(g_xstuff, x11lib, XMapWindow);
FPTR_LINK(g_xstuff, x11lib, XNextEvent);
FPTR_LINK(g_xstuff, x11lib, XCheckTypedEvent);
FPTR_LINK(g_xstuff, x11lib, XUnmapWindow);
FPTR_LINK(g_xstuff, x11lib, XGrabKeyboard);
FPTR_LINK(g_xstuff, x11lib, XPending);
FPTR_LINK(g_xstuff, x11lib, XLookupKeysym);
FPTR_LINK(g_xstuff, x11lib, XkbSetDetectableAutoRepeat);
//XInitThreads();
g_xstuff.display = display = g_xstuff.pXOpenDisplay(NULL);
if (display == NULL)
{
fprintf(stderr, "cannot connect to X server %s, X handling disabled.\n",
g_xstuff.pXDisplayName(NULL));
goto fail2;
}
visual = DefaultVisual(display, 0);
if (visual->class != TrueColor)
fprintf(stderr, PFX "warning: non true color visual\n");
printf(PFX "X vendor: %s, rel: %d, display: %s, protocol ver: %d.%d\n", ServerVendor(display),
VendorRelease(display), DisplayString(display), ProtocolVersion(display),
ProtocolRevision(display));
screen = DefaultScreen(display);
display_width = DisplayWidth(display, screen);
display_height = DisplayHeight(display, screen);
printf(PFX "display is %dx%d\n", display_width, display_height);
win = g_xstuff.pXCreateSimpleWindow(display,
RootWindow(display, screen),
0, 0, display_width, display_height, 0,
BlackPixel(display, screen),
BlackPixel(display, screen));
attributes.override_redirect = True;
attributes.cursor = transparent_cursor(&g_xstuff, display, win);
g_xstuff.pXChangeWindowAttributes(display, win, CWOverrideRedirect | CWCursor, &attributes);
g_xstuff.pXSelectInput(display, win, ExposureMask | FocusChangeMask | KeyPressMask | KeyReleaseMask);
g_xstuff.pXMapWindow(display, win);
g_xstuff.pXGrabKeyboard(display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
g_xstuff.pXkbSetDetectableAutoRepeat(display, 1, NULL);
// XSetIOErrorHandler
return 0;
fail2:
dlclose(x11lib);
fail:
g_xstuff.display = NULL;
fprintf(stderr, "x11 handling disabled.\n");
return -1;
}
static int x11h_update(int *is_down)
{
XEvent evt;
while (g_xstuff.pXPending(g_xstuff.display))
{
g_xstuff.pXNextEvent(g_xstuff.display, &evt);
switch (evt.type)
{
case Expose:
while (g_xstuff.pXCheckTypedEvent(g_xstuff.display, Expose, &evt))
;
break;
case KeyPress:
*is_down = 1;
return g_xstuff.pXLookupKeysym(&evt.xkey, 0);
case KeyRelease:
*is_down = 0;
return g_xstuff.pXLookupKeysym(&evt.xkey, 0);
// printf("press %d\n", evt.xkey.keycode);
}
}
return NoSymbol;
}
static struct termios g_kbd_termios_saved;
static int g_kbdfd;
static int tty_init(void)
{
struct termios kbd_termios;
int mode;
g_kbdfd = open("/dev/tty", O_RDWR);
if (g_kbdfd == -1) {
perror(PFX "open /dev/tty");
return -1;
}
if (ioctl(g_kbdfd, KDGETMODE, &mode) == -1) {
perror(PFX "(not hiding FB): KDGETMODE");
goto fail;
}
if (tcgetattr(g_kbdfd, &kbd_termios) == -1) {
perror(PFX "tcgetattr");
goto fail;
}
g_kbd_termios_saved = kbd_termios;
kbd_termios.c_lflag &= ~(ICANON | ECHO); // | ISIG);
kbd_termios.c_iflag &= ~(ISTRIP | IGNCR | ICRNL | INLCR | IXOFF | IXON);
kbd_termios.c_cc[VMIN] = 0;
kbd_termios.c_cc[VTIME] = 0;
if (tcsetattr(g_kbdfd, TCSAFLUSH, &kbd_termios) == -1) {
perror(PFX "tcsetattr");
goto fail;
}
if (ioctl(g_kbdfd, KDSETMODE, KD_GRAPHICS) == -1) {
perror(PFX "KDSETMODE KD_GRAPHICS");
tcsetattr(g_kbdfd, TCSAFLUSH, &g_kbd_termios_saved);
goto fail;
}
return 0;
fail:
close(g_kbdfd);
g_kbdfd = -1;
return -1;
}
static void tty_end(void)
{
if (g_kbdfd <= 0)
return;
if (ioctl(g_kbdfd, KDSETMODE, KD_TEXT) == -1)
perror(PFX "KDSETMODE KD_TEXT");
if (tcsetattr(g_kbdfd, TCSAFLUSH, &g_kbd_termios_saved) == -1)
perror(PFX "tcsetattr");
close(g_kbdfd);
g_kbdfd = -1;
}
int xenv_init(void)
{
int ret;
ret = x11h_init();
if (ret == 0)
return 0;
ret = tty_init();
if (ret == 0)
return 0;
fprintf(stderr, PFX "error: both x11h_init and tty_init failed\n");
return -1;
}
int xenv_update(int *is_down)
{
if (g_xstuff.display)
return x11h_update(is_down);
// TODO: read tty?
return -1;
}
void xenv_finish(void)
{
// TODO: cleanup X?
tty_end();
}

5
pandora/linux/xenv.h Normal file
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@@ -0,0 +1,5 @@
int xenv_init(void);
int xenv_update(int *is_down);
void xenv_finish(void);