diff options
Diffstat (limited to 'packages/linux/linux-2.6.27/boc01/013-081224-lcd.patch')
| -rw-r--r-- | packages/linux/linux-2.6.27/boc01/013-081224-lcd.patch | 808 |
1 files changed, 0 insertions, 808 deletions
diff --git a/packages/linux/linux-2.6.27/boc01/013-081224-lcd.patch b/packages/linux/linux-2.6.27/boc01/013-081224-lcd.patch deleted file mode 100644 index e592615b0c..0000000000 --- a/packages/linux/linux-2.6.27/boc01/013-081224-lcd.patch +++ /dev/null @@ -1,808 +0,0 @@ -Index: linux-2.6.27/drivers/video/Kconfig -=================================================================== ---- linux-2.6.27.orig/drivers/video/Kconfig -+++ linux-2.6.27/drivers/video/Kconfig -@@ -480,6 +480,19 @@ config FB_ARC - this driver, say Y or M; otherwise say N. You must specify the - GPIO IO address to be used for setting control and data. - -+config FB_NOVA -+ tristate "Nova 7506 Monochrome LCD board support" -+ depends on FB -+ select FB_SYS_FILLRECT -+ select FB_SYS_COPYAREA -+ select FB_SYS_IMAGEBLIT -+ select FB_SYS_FOPS -+ select FB_BACKLIGHT -+ select LCD_CLASS_DEVICE -+ help -+ This enables support for the Nova 7506 Monochrome LCD board. The board -+ is based on the NT7506 lcd controller. -+ - config FB_ATARI - bool "Atari native chipset support" - depends on (FB = y) && ATARI -Index: linux-2.6.27/drivers/video/Makefile -=================================================================== ---- linux-2.6.27.orig/drivers/video/Makefile -+++ linux-2.6.27/drivers/video/Makefile -@@ -13,8 +13,8 @@ fb-objs := $(f - - obj-$(CONFIG_VT) += console/ - obj-$(CONFIG_LOGO) += logo/ --obj-y += backlight/ display/ -- -+obj-y += backlight/ display/ -+obj-$(CONFIG_FB_NOVA) += N7506fb.o - obj-$(CONFIG_FB_CFB_FILLRECT) += cfbfillrect.o - obj-$(CONFIG_FB_CFB_COPYAREA) += cfbcopyarea.o - obj-$(CONFIG_FB_CFB_IMAGEBLIT) += cfbimgblt.o -Index: linux-2.6.27/drivers/video/N7506fb.c -=================================================================== ---- /dev/null -+++ linux-2.6.27/drivers/video/N7506fb.c -@@ -0,0 +1,728 @@ -+/* -+ * linux/drivers/video/N7506fb.c -- FB driver for Nova NT7506 monochrome LCD board -+ * -+ * Copyright (C) 2008, CenoSYS (www.cenosys.com). -+ * -+ * Alexandre Coffignal <alexandre.coffignal@cenosys.com> -+ * Sylvain Giroudon <sylvain.giroudon@goobie.fr> -+ * -+ * 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. -+ * -+ * Layout is based on arcfb.c by Jaya Kumar -+ * -+ * This driver was written to be used with the Nova 7506 LCD board. -+ * -+ * -+ * -+ * -+ * Nova uses a -+ * set of NT7506 chips that control individual 128x128 LCD matrices. -+ * The interface between the board and the host is TTL based GPIO. -+ * -+ * General notes: -+ * - User must set tuhold. It's in microseconds. According to the 108 spec, -+ * the hold time is supposed to be at least 1 microsecond. -+ * -+ */ -+ -+#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 <linux/backlight.h> -+#include <linux/lcd.h> -+#include <linux/NT7506.h> -+ -+#include <linux/uaccess.h> -+ -+#define DRIVER_NAME "novafb" -+ -+#define floor8(a) (a&(~0x07)) -+#define floorXres(a,xres) (a&(~(xres - 1))) -+#define iceil8(a) (((int)((a+7)/8))*8) -+#define ceil128(a) (a|0x7F) -+#define ceilXres(a,xres) (a|(xres - 1)) -+ -+//NT7506 Hardware -+#define LCD_RST 0x08 -+#define LCD_RSTN 0x00 -+#define LCD_BCKLIGH 0x04 -+#define LCD_BCKLIGHN 0x00 -+#define LCD_RS 0x02 -+#define LCD_RSN 0x00 -+#define LCD_ERD 0x01 -+#define LCD_ERDN 0x00 -+ -+//Base address -+#define LCD_BASE 0xf0000000 -+#define LCD_SIZE 0x2 -+ -+//NT7506 Instructions -+#define NT_ICON 0xA2 -+#define NT_PAGE_ADDR 0xB0 -+#define NT_COL_MSB 0x10 -+#define NT_COL_LSB 0x00 -+#define NT_DISP 0xAE -+#define NT_START_LINE 0x40 -+#define NT_COM0 0x44 -+#define NT_DUTY 0x48 -+#define DUTY_1_128 0x80 -+#define NT_REV_DISP 0xA6 -+#define NT_POWER 0x28 -+#define VC 0x04 -+#define VR 0x02 -+#define VF 0x01 -+#define NT_DCDC 0x64 -+#define TIME6 0x03 -+#define NT_REG_RES 0x20 -+#define RES_7_2 0x07 -+#define NT_ELEC_VOL 0x81 -+#define NT_BIAS 0x50 -+#define BIAS_1_11 0x06 -+#define NT_ADC_NOR 0xA0 -+#define NT_ADC_REV 0xA1 -+#define NT_SHL_NOR 0xC0 -+#define NT_SHL_REV 0xC8 -+#define NT_OSC 0xAB -+#define NT_RESET 0xE2 -+#define NT_DATA_DIR 0xe8 -+#define NT_FRC_PWM 0x90 -+#define PWM15 0x03 -+ -+#define ON 0x01 -+#define OFF 0x00 -+ -+// Geometric settings -+#define LCD_WIDTH 128 -+#define LCD_HEIGHT 128 -+#define LCD_NPAGES (LCD_HEIGHT/8) /* LCD pages of 8 vertical pixels */ -+ -+#define LINE_LENGTH (LCD_WIDTH/8) /* FB line size, 8 pixels per byte */ -+ -+#define DEFAULT_CONTRAST 20 -+#define DEFAULT_FPS 5 -+ -+static struct resource *lcd_mem = NULL; -+static void * _lcd_io = NULL; -+static unsigned long tuhold; -+struct fb_info *info; -+static struct timer_list fb_timer; -+static char _refresh = 0; -+static char _fps = DEFAULT_FPS; -+static char _backlight = 1; -+ -+struct novafb_par { -+ atomic_t ref_count; -+ struct fb_info *info; -+ spinlock_t lock; -+ struct lcd_device *lcd_dev; -+ int contrast; -+}; -+ -+static struct fb_fix_screeninfo novafb_fix __initdata = { -+ .id = DRIVER_NAME, -+ .type = FB_TYPE_PACKED_PIXELS, -+ .visual = FB_VISUAL_MONO01, -+ .xpanstep = 1, -+ .ypanstep = 1, -+ .ywrapstep = 0, -+ .line_length = LINE_LENGTH, -+ .accel = FB_ACCEL_NONE, -+}; -+ -+static struct fb_var_screeninfo novafb_var __initdata = { -+ .xres = LCD_WIDTH, -+ .yres = LCD_HEIGHT, -+ .xres_virtual = LCD_WIDTH, -+ .yres_virtual = LCD_HEIGHT, -+ .bits_per_pixel = 1, -+ .nonstd = 1, -+}; -+ -+ -+/* -+ * Low-level i/o primitives -+ */ -+ -+static void NT7506_init_lcd(char ael); -+ -+static void NT7506_writeb_ctl(unsigned char value) -+{ -+ unsigned short svalue; -+ char bl = _backlight ? LCD_BCKLIGH : LCD_BCKLIGHN; -+ -+ svalue=value<<8 | LCD_RSN | LCD_RST | LCD_ERDN | bl; -+ iowrite16(svalue, _lcd_io); -+ udelay(tuhold); -+ //The data on DB0/7 are latched at the falling edge of the E_RD signal -+ svalue=value<<8 | LCD_RSN | LCD_RST | LCD_ERD | bl; -+ iowrite16(svalue, _lcd_io); -+ udelay(tuhold); -+} -+ -+static void NT7506_writeb_data(unsigned char value) -+{ -+ unsigned short svalue; -+ char bl = _backlight ? LCD_BCKLIGH : LCD_BCKLIGHN; -+ -+ svalue=value<<8|LCD_RS |LCD_RST | LCD_ERD | bl ; -+ iowrite16(svalue, _lcd_io); -+ udelay(tuhold); -+ //The data on DB0/7 are latched at the falling edge of the E_RD signal -+ svalue=value<<8|LCD_RS |LCD_RST | LCD_ERDN | bl; -+ iowrite16(svalue, _lcd_io); -+ udelay(tuhold); -+} -+ -+static void NT7506_set_start_line(unsigned char y) -+{ -+ NT7506_writeb_ctl(NT_START_LINE); -+ NT7506_writeb_ctl(y); -+} -+ -+static void NT7506_set_yaddr(unsigned char y) -+{ -+ NT7506_writeb_ctl(NT_PAGE_ADDR+y); -+} -+ -+static void NT7506_set_xaddr(unsigned char x) -+{ -+ NT7506_writeb_ctl(NT_COL_MSB | (x >> 0x04)); //Send high nibble -+ NT7506_writeb_ctl(NT_COL_LSB | (x & 0x0F) ); //Send low nibble -+} -+ -+ -+/* -+ * LCD device management -+ */ -+ -+static int -+novafb_lcd_get_contrast(struct lcd_device *lcd_dev) -+{ -+ struct novafb_par *par = lcd_get_data(lcd_dev); -+ return par->contrast; -+} -+ -+static int -+novafb_lcd_set_contrast(struct lcd_device *lcd_dev, int contrast) -+{ -+ struct novafb_par *par = lcd_get_data(lcd_dev); -+ -+ par->contrast = contrast; -+ NT7506_writeb_ctl(NT_ELEC_VOL); NT7506_writeb_ctl(par->contrast); -+ -+ //printk(KERN_INFO DRIVER_NAME": contrast = %d\n", par->contrast); -+ return 0; -+} -+ -+static struct lcd_ops novafb_lcd_ops = { -+ .get_contrast = novafb_lcd_get_contrast, -+ .set_contrast = novafb_lcd_set_contrast, -+}; -+ -+static void -+novafb_lcd_init(struct novafb_par *par) -+{ -+ struct fb_info *info = par->info; -+ struct lcd_device *lcd_dev; -+ -+ lcd_dev = lcd_device_register(DRIVER_NAME, info->dev, par, &novafb_lcd_ops); -+ if (IS_ERR(lcd_dev)) { -+ par->lcd_dev = NULL; -+ printk(KERN_WARNING DRIVER_NAME ": LCD device registration failed\n"); -+ return; -+ } -+ -+ par->lcd_dev = lcd_dev; -+ lcd_dev->props.max_contrast = 255; -+ par->contrast = DEFAULT_CONTRAST; -+ printk(KERN_INFO DRIVER_NAME ": LCD contrast management initialized\n"); -+} -+ -+static void -+novafb_lcd_exit(struct novafb_par *par) -+{ -+ if ( par->lcd_dev ) { -+ lcd_device_unregister(par->lcd_dev); -+ par->lcd_dev = NULL; -+ } -+} -+ -+ -+/* -+ * Backlight device management -+ */ -+ -+static int -+novafb_bl_update_status(struct backlight_device *bd) -+{ -+ _refresh = 0; -+ -+ if (bd->props.power != FB_BLANK_UNBLANK || -+ bd->props.fb_blank != FB_BLANK_UNBLANK) -+ _backlight = 0; -+ else -+ _backlight = bd->props.brightness; -+ -+ _refresh = 1; -+ -+ //printk(KERN_INFO DRIVER_NAME": backlight = %d\n", _backlight); -+ return 0; -+} -+ -+static int -+novafb_bl_get_brightness(struct backlight_device *bd) -+{ -+ return bd->props.brightness; -+} -+ -+static struct backlight_ops novafb_bl_ops = { -+ .get_brightness = novafb_bl_get_brightness, -+ .update_status = novafb_bl_update_status, -+}; -+ -+ -+static void -+novafb_bl_init(struct novafb_par *par) -+{ -+ struct fb_info *info = par->info; -+ struct backlight_device *bd; -+ -+ bd = backlight_device_register(DRIVER_NAME, info->dev, par, &novafb_bl_ops); -+ if (IS_ERR(bd)) { -+ info->bl_dev = NULL; -+ printk(KERN_WARNING DRIVER_NAME ": Backlight device registration failed\n"); -+ return; -+ } -+ -+ info->bl_dev = bd; -+ bd->props.max_brightness = 1; -+ bd->props.power = FB_BLANK_UNBLANK; -+ bd->props.brightness = 1; -+ novafb_bl_update_status(bd); -+ -+ printk(KERN_INFO DRIVER_NAME ": Backlight control initialized\n"); -+} -+ -+static void -+novafb_bl_exit(struct fb_info *info) -+{ -+ if ( info->bl_dev ) { -+ backlight_device_unregister(info->bl_dev); -+ info->bl_dev = NULL; -+ } -+} -+ -+ -+/* -+ * Main frame buffer operations -+ */ -+ -+static int novafb_open(struct fb_info *info, int user) -+{ -+ struct novafb_par *par = info->par; -+ atomic_inc(&par->ref_count); -+ return 0; -+} -+ -+static int novafb_release(struct fb_info *info, int user) -+{ -+ struct novafb_par *par = info->par; -+ int count = atomic_read(&par->ref_count); -+ if (!count) -+ return -EINVAL; -+ atomic_dec(&par->ref_count); -+ return 0; -+} -+ -+static int novafb_pan_display(struct fb_var_screeninfo *var, -+ struct fb_info *info) -+{ -+ if ( (var->vmode & FB_VMODE_YWRAP) && -+ (var->yoffset < LCD_HEIGHT) && -+ (info->var.yres <= LCD_HEIGHT) ) { -+ NT7506_set_start_line(var->yoffset); -+ info->var.yoffset = var->yoffset; -+ return 0; -+ } -+ -+ return -EINVAL; -+} -+ -+static void novafb_lcd_update(struct novafb_par *par) -+{ -+ unsigned char *src = (unsigned char __force *) par->info->screen_base; -+ unsigned char dest[LCD_WIDTH * LCD_NPAGES]; -+ int x, y; -+ -+ for (x = 0; x < LCD_WIDTH; x++) { -+ int xfb = x / 8; -+ -+ for(y = 0; y < LCD_NPAGES; y++) { -+ int i = (y * LCD_WIDTH) + x; -+ int yfb = y * 8; -+ int bit; -+ -+ dest[i] = 0; -+ -+ for (bit = 0; bit < 8; yfb++, bit++) { -+ int ifb = (yfb * LINE_LENGTH) + xfb; -+ unsigned char mask = (1 << (7-(x%8))); -+ unsigned char value = (src[ifb] & mask) ? 1:0; -+ -+ dest[i] += (value<<bit); -+ } -+ } -+ } -+ -+ for (y = 0; y < LCD_NPAGES; y++) { -+ NT7506_set_yaddr(y); -+ NT7506_set_xaddr(0); -+ for (x = 0; x < LCD_WIDTH; x++) { -+ NT7506_writeb_data(dest[y*LCD_WIDTH+x]); -+ NT7506_writeb_data(0x00); -+ } -+ NT7506_writeb_data((unsigned char)0); -+ } -+} -+ -+static void novafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) -+{ -+ sys_fillrect(info, rect); -+} -+ -+ -+ -+static void novafb_copyarea(struct fb_info *info, -+ const struct fb_copyarea *area) -+{ -+ sys_copyarea(info, area); -+} -+ -+ -+static void novafb_imageblit(struct fb_info *info, const struct fb_image *image) -+{ -+ sys_imageblit(info, image); -+} -+ -+ -+/* -+ * this is the access path from userspace. they can seek and write to -+ * the fb. it's inefficient for them to do anything less than 128*8 -+ * writes since we update the lcd in each write() anyway. -+ */ -+static ssize_t novafb_write(struct fb_info *info, const char __user *buf, -+ size_t count, loff_t *ppos) -+{ -+ unsigned long p = *ppos; -+ unsigned int fbmemlength; -+ int err = 0; -+ -+ fbmemlength = (info->var.xres * info->var.yres)/8; -+ -+ if ( p > fbmemlength ) { -+ return -EFBIG; -+ } -+ -+ if ( (count + p) > fbmemlength ) { -+ count = fbmemlength - p; -+ err = -ENOSPC; -+ } -+ -+ if ( count ) { -+ char *base_addr = (char __force *) info->screen_base; -+ if ( copy_from_user(base_addr + p, buf, count) ) -+ err = -EFAULT; -+ } -+ -+ if ( !err ) -+ *ppos += count; -+ -+ return err ? err : count; -+} -+ -+ -+static int novafb_mmap(struct fb_info *info, struct vm_area_struct *vma) -+{ -+ unsigned long off; -+ unsigned long start; -+ u32 len; -+ -+ if (vma->vm_end - vma->vm_start == 0) -+ return 0; -+ if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) -+ return -EINVAL; -+ off = vma->vm_pgoff << PAGE_SHIFT; -+ start = info->fix.smem_start; -+ len = info->fix.smem_len; -+ if (off >= len) -+ { -+ return -EINVAL; -+ -+ } -+ if ((vma->vm_end - vma->vm_start + off) > len) -+ { -+ return -EINVAL; -+ } -+ off += start; -+ vma->vm_pgoff = off >> PAGE_SHIFT; -+ if (remap_pfn_range(vma, vma->vm_start, virt_to_phys((void *)info->fix.smem_start) >> PAGE_SHIFT, -+ info->fix.smem_len, vma->vm_page_prot)) -+ -+ { -+ return -EAGAIN; -+ } -+ return 0; -+ -+} -+ -+ -+static int novafb_ioctl(struct fb_info *info, -+ unsigned int cmd, unsigned long arg) -+{ -+ unsigned char frame_rate; -+ -+ switch ( cmd ) { -+ case FBIO_FRAMERATE: -+ if (get_user(frame_rate, (unsigned char *)arg)) -+ return -EFAULT; -+ printk(KERN_INFO "fb%d: framerate=%d Hz\n", info->node, frame_rate); -+ _fps = frame_rate; -+ return 0; -+ -+ default: -+ return -EINVAL; -+ } -+} -+ -+ -+static struct fb_ops novafb_ops = { -+ .owner = THIS_MODULE, -+ .fb_open = novafb_open, -+ .fb_read = fb_sys_read, -+ .fb_write = novafb_write, -+ .fb_release = novafb_release, -+ .fb_pan_display = novafb_pan_display, -+ .fb_fillrect = novafb_fillrect, -+ .fb_copyarea = novafb_copyarea, -+ .fb_imageblit = novafb_imageblit, -+ .fb_ioctl = novafb_ioctl, -+ .fb_mmap = novafb_mmap, -+}; -+ -+ -+static void -+novafb_refresh(unsigned long ignore_me) -+{ -+ struct novafb_par *par = info->par; -+ if ( _refresh ) { -+ novafb_lcd_update(par); -+ } -+ -+ fb_timer.expires = jiffies + (HZ/_fps); -+ add_timer(&fb_timer); -+} -+ -+static int __init -+novafb_probe(struct platform_device *dev) -+{ -+ int retval = -ENOMEM; -+ struct novafb_par *par; -+ static unsigned char *videomemory; -+ static int videomemorysize; -+ -+ NT7506_init_lcd(DEFAULT_CONTRAST); -+ -+ videomemorysize = (LINE_LENGTH * LCD_HEIGHT) * 2; -+ -+ if (!(videomemory = kmalloc(videomemorysize,GFP_ATOMIC))) -+ goto failout; -+ memset(videomemory, 0, videomemorysize); -+ -+ info = framebuffer_alloc(sizeof(struct novafb_par), &dev->dev); -+ -+ if (!info) -+ goto out_alloc; -+ info->screen_base = (char __iomem *)videomemory; -+ info->fbops = &novafb_ops; -+ -+ info->var = novafb_var; -+ info->fix = novafb_fix; -+ info->fix.smem_start = (unsigned long)videomemory; -+ info->fix.smem_len = videomemorysize; -+ -+ par = info->par; -+ par->info = info; -+ -+ info->flags = FBINFO_FLAG_DEFAULT; -+ spin_lock_init(&par->lock); -+ platform_set_drvdata(dev, info); -+ retval = register_framebuffer(info); -+ if (retval < 0) -+ goto out_register; -+ -+ init_timer(&fb_timer); -+ fb_timer.function = novafb_refresh; -+ fb_timer.expires = jiffies + (HZ / _fps); -+ add_timer(&fb_timer); -+ -+ printk(KERN_INFO -+ "fb%d: nova frame buffer device, using %dK of video memory\n", -+ info->node, videomemorysize >> 10); -+ -+ /* Initialize backlight and contrast control (do not abort driver if it fails) */ -+ novafb_bl_init(par); -+ novafb_lcd_init(par); -+ -+ return 0; -+ -+out_register: -+ framebuffer_release(info); -+out_alloc: -+ vfree(videomemory); -+failout: -+ return retval; -+} -+ -+static int novafb_remove(struct platform_device *dev) -+{ -+ struct fb_info *info = platform_get_drvdata(dev); -+ -+ if (info) { -+ novafb_lcd_exit(info->par); -+ novafb_bl_exit(info); -+ unregister_framebuffer(info); -+ vfree((void __force *)info->screen_base); -+ framebuffer_release(info); -+ } -+ return 0; -+} -+ -+static struct platform_driver novafb_driver = { -+ .probe = novafb_probe, -+ .remove = novafb_remove, -+ .driver = { -+ .name = DRIVER_NAME, -+ }, -+}; -+ -+static struct platform_device *novafb_device; -+ -+static int __init novafb_init(void) -+{ -+ int ret; -+ -+ -+ if (!(lcd_mem = request_mem_region(LCD_BASE, LCD_SIZE, "mpc8313-lcd"))) -+ return -ENOMEM; -+ -+ if (!(_lcd_io = ioremap(LCD_BASE, LCD_SIZE))) -+ { -+ release_mem_region(LCD_BASE, LCD_SIZE); -+ lcd_mem = NULL; -+ return -ENOMEM; -+ } -+ ret = platform_driver_register(&novafb_driver); -+ -+ if (!ret) { -+ novafb_device = platform_device_alloc(DRIVER_NAME, 0); -+ if (novafb_device) -+ { -+ ret = platform_device_add(novafb_device); -+ } -+ else -+ { -+ ret = -ENOMEM; -+ } -+ if (ret) -+ { -+ platform_device_put(novafb_device); -+ platform_driver_unregister(&novafb_driver); -+ } -+ -+ } -+ -+ -+ return ret; -+ -+} -+ -+ -+static void NT7506_init_lcd(char ael) -+{ -+ /* this resets the lcd*/ -+ char bl = _backlight ? LCD_BCKLIGH : LCD_BCKLIGHN; -+ -+ iowrite16(LCD_RSTN | LCD_ERD | bl, _lcd_io); -+ udelay(100); -+ iowrite16(LCD_RST| LCD_ERD | bl, _lcd_io); -+ udelay(200); -+ /* Soft reset*/ -+ NT7506_writeb_ctl(NT_RESET); -+ /* Disable ICON display*/ -+ NT7506_writeb_ctl(NT_ICON|OFF); -+ /* Sets the duty ratio 1/128*/ -+ NT7506_writeb_ctl(NT_DUTY); NT7506_writeb_ctl(DUTY_1_128); -+ /* Sets reverse direction between RAM column address and segment driver*/ -+ NT7506_writeb_ctl(NT_ADC_REV); -+ NT7506_writeb_ctl(NT_SHL_NOR); -+ /* Enales the built in Oscillator circuit.*/ -+ NT7506_writeb_ctl(NT_OSC); -+ /* Set Initial row to 0*/ -+ NT7506_writeb_ctl(NT_COM0); NT7506_writeb_ctl(0); -+ /* Sets DC-DC*/ -+ NT7506_writeb_ctl(NT_DCDC|TIME6); -+ /* Selects resistance ratio of the internal resistor*/ -+ NT7506_writeb_ctl(NT_REG_RES|RES_7_2); -+ /* set Reference Voltage mode*/ -+ NT7506_writeb_ctl(NT_ELEC_VOL); NT7506_writeb_ctl(ael); -+ /* Selects LCD bias ratio*/ -+ NT7506_writeb_ctl(NT_BIAS|BIAS_1_11); -+ -+ NT7506_writeb_ctl(NT_DATA_DIR); NT7506_writeb_ctl(0); -+ NT7506_writeb_ctl(NT_FRC_PWM|PWM15); -+ /* Select power circuit functions */ -+ NT7506_writeb_ctl(NT_POWER|VC); -+ udelay(5000); -+ NT7506_writeb_ctl(NT_POWER|VC|VR); -+ udelay(5000); -+ NT7506_writeb_ctl(NT_POWER|VC|VR|VF); -+ udelay(5000); -+ /* Reverses the display status on LCD panel */ -+ NT7506_writeb_ctl(NT_REV_DISP|OFF); -+ /* Forces the whole LCD points to be turned on regardless of the contents of the display data RAM*/ -+ NT7506_writeb_ctl(NT_DISP|ON); -+ /* Set Initial Start Line Address */ -+ NT7506_writeb_ctl(NT_START_LINE); NT7506_writeb_ctl(0x00); -+ _refresh=1; -+} -+ -+static void __exit novafb_exit(void) -+{ -+ if (lcd_mem) -+ release_mem_region(LCD_BASE, LCD_SIZE); -+ lcd_mem = NULL; -+ platform_device_unregister(novafb_device); -+ platform_driver_unregister(&novafb_driver); -+} -+ -+module_param(tuhold, ulong, 0); -+MODULE_PARM_DESC(tuhold, "Time to hold between strobing data to Nova board"); -+ -+module_init(novafb_init); -+module_exit(novafb_exit); -+ -+MODULE_DESCRIPTION("fbdev driver for nova NT7506 monochrome LCD board"); -+MODULE_AUTHOR("Alexandre Coffignal"); -+MODULE_LICENSE("GPL"); -+ -Index: linux-2.6.27/include/linux/NT7506.h -=================================================================== ---- /dev/null -+++ linux-2.6.27/include/linux/NT7506.h -@@ -0,0 +1,31 @@ -+ -+/* -+ * (C) Copyright 2008 -+ * Alexandre Coffignal, CénoSYS, alexandre.coffignal@cenosys.com -+ * -+ * See file CREDITS for list of people who contributed to this -+ * project. -+ * -+ * 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 __LINUX_NOVAFB_H__ -+#define __LINUX_NOVAFB_H__ -+ -+#define FBIO_FRAMERATE _IOR('f', 1, char) -+ -+#endif |