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[ARM] 3454/1: ARM: OMAP: 6/8 Update framebuffer low-level init code, …
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…take 2

Patch from Tony Lindgren

Update OMAP framebuffer low-level init code from linux-omap tree
by Imre Deak.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Tony Lindgren authored and Russell King committed Apr 2, 2006
1 parent 670c104 commit 0dc5e77
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Showing 5 changed files with 172 additions and 27 deletions.
6 changes: 6 additions & 0 deletions arch/arm/plat-omap/dma.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1258,6 +1258,11 @@ void omap_stop_lcd_dma(void)
omap_writew(w, OMAP1610_DMA_LCD_CTRL);
}

int omap_lcd_dma_ext_running(void)
{
return lcd_dma.ext_ctrl && lcd_dma.active;
}

/*----------------------------------------------------------------------------*/

static int __init omap_init_dma(void)
Expand Down Expand Up @@ -1389,6 +1394,7 @@ EXPORT_SYMBOL(omap_free_lcd_dma);
EXPORT_SYMBOL(omap_enable_lcd_dma);
EXPORT_SYMBOL(omap_setup_lcd_dma);
EXPORT_SYMBOL(omap_stop_lcd_dma);
EXPORT_SYMBOL(omap_lcd_dma_ext_running);
EXPORT_SYMBOL(omap_set_lcd_dma_b1);
EXPORT_SYMBOL(omap_set_lcd_dma_single_transfer);
EXPORT_SYMBOL(omap_set_lcd_dma_ext_controller);
Expand Down
80 changes: 80 additions & 0 deletions arch/arm/plat-omap/fb.c
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Original file line number Diff line number Diff line change
@@ -0,0 +1,80 @@
#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/bootmem.h>

#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/mach-types.h>
#include <asm/mach/map.h>

#include <asm/arch/board.h>
#include <asm/arch/sram.h>
#include <asm/arch/omapfb.h>

#if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)

static struct omapfb_platform_data omapfb_config;

static u64 omap_fb_dma_mask = ~(u32)0;

static struct platform_device omap_fb_device = {
.name = "omapfb",
.id = -1,
.dev = {
.dma_mask = &omap_fb_dma_mask,
.coherent_dma_mask = ~(u32)0,
.platform_data = &omapfb_config,
},
.num_resources = 0,
};

/* called from map_io */
void omapfb_reserve_mem(void)
{
const struct omap_fbmem_config *fbmem_conf;

omapfb_config.fbmem.fb_sram_start = omap_fb_sram_start;
omapfb_config.fbmem.fb_sram_size = omap_fb_sram_size;

fbmem_conf = omap_get_config(OMAP_TAG_FBMEM, struct omap_fbmem_config);

if (fbmem_conf != NULL) {
/* indicate that the bootloader already initialized the
* fb device, so we'll skip that part in the fb driver
*/
omapfb_config.fbmem.fb_sdram_start = fbmem_conf->fb_sdram_start;
omapfb_config.fbmem.fb_sdram_size = fbmem_conf->fb_sdram_size;
if (fbmem_conf->fb_sdram_size) {
pr_info("Reserving %u bytes SDRAM for frame buffer\n",
fbmem_conf->fb_sdram_size);
reserve_bootmem(fbmem_conf->fb_sdram_start,
fbmem_conf->fb_sdram_size);
}
}
}

static inline int omap_init_fb(void)
{
const struct omap_lcd_config *conf;

conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
if (conf == NULL)
return 0;

omapfb_config.lcd = *conf;

return platform_device_register(&omap_fb_device);
}

arch_initcall(omap_init_fb);

#else

void omapfb_reserve_mem(void) {}

#endif


1 change: 1 addition & 0 deletions include/asm-arm/arch-omap/dma.h
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Original file line number Diff line number Diff line change
Expand Up @@ -404,6 +404,7 @@ extern void omap_free_lcd_dma(void);
extern void omap_setup_lcd_dma(void);
extern void omap_enable_lcd_dma(void);
extern void omap_stop_lcd_dma(void);
extern int omap_lcd_dma_ext_running(void);
extern void omap_set_lcd_dma_ext_controller(int external);
extern void omap_set_lcd_dma_single_transfer(int single);
extern void omap_set_lcd_dma_b1(unsigned long addr, u16 fb_xres, u16 fb_yres,
Expand Down
14 changes: 14 additions & 0 deletions include/asm-arm/arch-omap/lcd_lph8923.h
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Original file line number Diff line number Diff line change
@@ -0,0 +1,14 @@
#ifndef __LCD_LPH8923_H
#define __LCD_LPH8923_H

enum lcd_lph8923_test_num {
LCD_LPH8923_TEST_RGB_LINES,
};

enum lcd_lph8923_test_result {
LCD_LPH8923_TEST_SUCCESS,
LCD_LPH8923_TEST_INVALID,
LCD_LPH8923_TEST_FAILED,
};

#endif
98 changes: 71 additions & 27 deletions include/asm-arm/arch-omap/omapfb.h
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Original file line number Diff line number Diff line change
Expand Up @@ -34,9 +34,10 @@
#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, enum omapfb_update_mode)
#define OMAPFB_SET_UPDATE_MODE OMAP_IOW(40, int)
#define OMAPFB_UPDATE_WINDOW_OLD OMAP_IOW(41, struct omapfb_update_window_old)
#define OMAPFB_GET_CAPS OMAP_IOR(42, unsigned long)
#define OMAPFB_GET_UPDATE_MODE OMAP_IOW(43, enum omapfb_update_mode)
#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 OMAP_IOW(47, struct omapfb_update_window)
Expand Down Expand Up @@ -66,9 +67,14 @@ enum omapfb_color_format {
};

struct omapfb_update_window {
u32 x, y;
u32 width, height;
u32 format;
__u32 x, y;
__u32 width, height;
__u32 format;
};

struct omapfb_update_window_old {
__u32 x, y;
__u32 width, height;
};

enum omapfb_plane {
Expand All @@ -83,17 +89,17 @@ enum omapfb_channel_out {
};

struct omapfb_setup_plane {
u8 plane;
u8 channel_out;
u32 offset;
u32 pos_x, pos_y;
u32 width, height;
u32 color_mode;
__u8 plane;
__u8 channel_out;
__u32 offset;
__u32 pos_x, pos_y;
__u32 width, height;
__u32 color_mode;
};

struct omapfb_enable_plane {
u8 plane;
u8 enable;
__u8 plane;
__u8 enable;
};

enum omapfb_color_key_type {
Expand All @@ -103,10 +109,10 @@ enum omapfb_color_key_type {
};

struct omapfb_color_key {
u8 channel_out;
u32 background;
u32 trans_key;
u8 key_type;
__u8 channel_out;
__u32 background;
__u32 trans_key;
__u8 key_type;
};

enum omapfb_update_mode {
Expand All @@ -120,6 +126,9 @@ enum omapfb_update_mode {
#include <linux/completion.h>
#include <linux/interrupt.h>
#include <linux/fb.h>
#include <linux/mutex.h>

#include <asm/arch/board.h>

#define OMAP_LCDC_INV_VSYNC 0x0001
#define OMAP_LCDC_INV_HSYNC 0x0002
Expand Down Expand Up @@ -184,29 +193,50 @@ struct extif_timings {
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) (void);
void (*cleanup) (void);
void (*get_clk_info) (u32 *clk_period, u32 *max_clk_div);
int (*convert_timings) (struct extif_timings *timings);
void (*set_timings) (const struct extif_timings *timings);
void (*write_command) (u32 cmd);
u32 (*read_data) (void);
void (*write_data) (u32 data);
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);
unsigned long max_transmit_size;
};

struct omapfb_notifier_block {
struct notifier_block nb;
void *data;
};

typedef int (*omapfb_notifier_callback_t)(struct omapfb_notifier_block *,
unsigned long event,
struct omapfb_device *fbdev);

struct lcd_ctrl {
const char *name;
void *data;

int (*init) (struct omapfb_device *fbdev,
int ext_mode, int req_vram_size);
void (*cleanup) (void);
void (*bind_client) (struct omapfb_notifier_block *nb);
void (*get_vram_layout)(unsigned long *size,
void **virt_base,
dma_addr_t *phys_base);
int (*mmap) (struct vm_area_struct *vma);
unsigned long (*get_caps) (void);
int (*set_update_mode)(enum omapfb_update_mode mode);
enum omapfb_update_mode (*get_update_mode)(void);
Expand Down Expand Up @@ -240,7 +270,7 @@ struct omapfb_device {
int state;
int ext_lcdc; /* Using external
LCD controller */
struct semaphore rqueue_sema;
struct mutex rqueue_mutex;

void *vram_virt_base;
dma_addr_t vram_phys_base;
Expand All @@ -261,20 +291,34 @@ struct omapfb_device {
struct device *dev;
};

extern struct lcd_panel h3_panel;
extern struct lcd_panel h2_panel;
extern struct lcd_panel p2_panel;
extern struct lcd_panel osk_panel;
extern struct lcd_panel innovator1610_panel;
extern struct lcd_panel innovator1510_panel;
struct omapfb_platform_data {
struct omap_lcd_config lcd;
struct omap_fbmem_config fbmem;
};

#define OMAPFB_EVENT_READY 1
#define OMAPFB_EVENT_DISABLED 2

#ifdef CONFIG_ARCH_OMAP1
extern struct lcd_ctrl omap1_lcd_ctrl;
#else
extern struct lcd_ctrl omap2_disp_ctrl;
#endif

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 omapfb_update_window *win,
void (*callback)(void *),
void *callback_data);

/* in arch/arm/plat-omap/devices.c */
extern void omapfb_reserve_mem(void);

#endif /* __KERNEL__ */

Expand Down

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