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authorTomi Valkeinen <tomi.valkeinen@ti.com>2014-02-13 15:31:38 +0200
committerTomi Valkeinen <tomi.valkeinen@ti.com>2014-04-17 08:10:19 +0300
commitf7018c21350204c4cf628462f229d44d03545254 (patch)
tree408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/cobalt_lcdfb.c
parentc26ef3eb3c11274bad1b64498d0a134f85755250 (diff)
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related files, directories for backlight, console, linux logo, lots of fbdev device drivers, fbdev framework files. Make some order into the chaos by creating drivers/video/fbdev directory, and move all fbdev related files there. No functionality is changed, although I guess it is possible that some subtle Makefile build order related issue could be created by this patch. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/cobalt_lcdfb.c')
-rw-r--r--drivers/video/cobalt_lcdfb.c401
1 files changed, 0 insertions, 401 deletions
diff --git a/drivers/video/cobalt_lcdfb.c b/drivers/video/cobalt_lcdfb.c
deleted file mode 100644
index d5533f4db1cf..000000000000
--- a/drivers/video/cobalt_lcdfb.c
+++ /dev/null
@@ -1,401 +0,0 @@
-/*
- * Cobalt/SEAD3 LCD frame buffer driver.
- *
- * Copyright (C) 2008 Yoichi Yuasa <yuasa@linux-mips.org>
- * Copyright (C) 2012 MIPS Technologies, Inc.
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#include <linux/delay.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/ioport.h>
-#include <linux/uaccess.h>
-#include <linux/platform_device.h>
-#include <linux/module.h>
-
-/*
- * Cursor position address
- * \X 0 1 2 ... 14 15
- * Y+----+----+----+---+----+----+
- * 0|0x00|0x01|0x02|...|0x0e|0x0f|
- * +----+----+----+---+----+----+
- * 1|0x40|0x41|0x42|...|0x4e|0x4f|
- * +----+----+----+---+----+----+
- */
-#define LCD_DATA_REG_OFFSET 0x10
-#define LCD_XRES_MAX 16
-#define LCD_YRES_MAX 2
-#define LCD_CHARS_MAX 32
-
-#define LCD_CLEAR 0x01
-#define LCD_CURSOR_MOVE_HOME 0x02
-#define LCD_RESET 0x06
-#define LCD_OFF 0x08
-#define LCD_CURSOR_OFF 0x0c
-#define LCD_CURSOR_BLINK_OFF 0x0e
-#define LCD_CURSOR_ON 0x0f
-#define LCD_ON LCD_CURSOR_ON
-#define LCD_CURSOR_MOVE_LEFT 0x10
-#define LCD_CURSOR_MOVE_RIGHT 0x14
-#define LCD_DISPLAY_LEFT 0x18
-#define LCD_DISPLAY_RIGHT 0x1c
-#define LCD_PRERESET 0x3f /* execute 4 times continuously */
-#define LCD_BUSY 0x80
-
-#define LCD_GRAPHIC_MODE 0x40
-#define LCD_TEXT_MODE 0x80
-#define LCD_CUR_POS_MASK 0x7f
-
-#define LCD_CUR_POS(x) ((x) & LCD_CUR_POS_MASK)
-#define LCD_TEXT_POS(x) ((x) | LCD_TEXT_MODE)
-
-#ifdef CONFIG_MIPS_COBALT
-static inline void lcd_write_control(struct fb_info *info, u8 control)
-{
- writel((u32)control << 24, info->screen_base);
-}
-
-static inline u8 lcd_read_control(struct fb_info *info)
-{
- return readl(info->screen_base) >> 24;
-}
-
-static inline void lcd_write_data(struct fb_info *info, u8 data)
-{
- writel((u32)data << 24, info->screen_base + LCD_DATA_REG_OFFSET);
-}
-
-static inline u8 lcd_read_data(struct fb_info *info)
-{
- return readl(info->screen_base + LCD_DATA_REG_OFFSET) >> 24;
-}
-#else
-
-#define LCD_CTL 0x00
-#define LCD_DATA 0x08
-#define CPLD_STATUS 0x10
-#define CPLD_DATA 0x18
-
-static inline void cpld_wait(struct fb_info *info)
-{
- do {
- } while (readl(info->screen_base + CPLD_STATUS) & 1);
-}
-
-static inline void lcd_write_control(struct fb_info *info, u8 control)
-{
- cpld_wait(info);
- writel(control, info->screen_base + LCD_CTL);
-}
-
-static inline u8 lcd_read_control(struct fb_info *info)
-{
- cpld_wait(info);
- readl(info->screen_base + LCD_CTL);
- cpld_wait(info);
- return readl(info->screen_base + CPLD_DATA) & 0xff;
-}
-
-static inline void lcd_write_data(struct fb_info *info, u8 data)
-{
- cpld_wait(info);
- writel(data, info->screen_base + LCD_DATA);
-}
-
-static inline u8 lcd_read_data(struct fb_info *info)
-{
- cpld_wait(info);
- readl(info->screen_base + LCD_DATA);
- cpld_wait(info);
- return readl(info->screen_base + CPLD_DATA) & 0xff;
-}
-#endif
-
-static int lcd_busy_wait(struct fb_info *info)
-{
- u8 val = 0;
- int timeout = 10, retval = 0;
-
- do {
- val = lcd_read_control(info);
- val &= LCD_BUSY;
- if (val != LCD_BUSY)
- break;
-
- if (msleep_interruptible(1))
- return -EINTR;
-
- timeout--;
- } while (timeout);
-
- if (val == LCD_BUSY)
- retval = -EBUSY;
-
- return retval;
-}
-
-static void lcd_clear(struct fb_info *info)
-{
- int i;
-
- for (i = 0; i < 4; i++) {
- udelay(150);
-
- lcd_write_control(info, LCD_PRERESET);
- }
-
- udelay(150);
-
- lcd_write_control(info, LCD_CLEAR);
-
- udelay(150);
-
- lcd_write_control(info, LCD_RESET);
-}
-
-static struct fb_fix_screeninfo cobalt_lcdfb_fix = {
- .id = "cobalt-lcd",
- .type = FB_TYPE_TEXT,
- .type_aux = FB_AUX_TEXT_MDA,
- .visual = FB_VISUAL_MONO01,
- .line_length = LCD_XRES_MAX,
- .accel = FB_ACCEL_NONE,
-};
-
-static ssize_t cobalt_lcdfb_read(struct fb_info *info, char __user *buf,
- size_t count, loff_t *ppos)
-{
- char src[LCD_CHARS_MAX];
- unsigned long pos;
- int len, retval = 0;
-
- pos = *ppos;
- if (pos >= LCD_CHARS_MAX || count == 0)
- return 0;
-
- if (count > LCD_CHARS_MAX)
- count = LCD_CHARS_MAX;
-
- if (pos + count > LCD_CHARS_MAX)
- count = LCD_CHARS_MAX - pos;
-
- for (len = 0; len < count; len++) {
- retval = lcd_busy_wait(info);
- if (retval < 0)
- break;
-
- lcd_write_control(info, LCD_TEXT_POS(pos));
-
- retval = lcd_busy_wait(info);
- if (retval < 0)
- break;
-
- src[len] = lcd_read_data(info);
- if (pos == 0x0f)
- pos = 0x40;
- else
- pos++;
- }
-
- if (retval < 0 && signal_pending(current))
- return -ERESTARTSYS;
-
- if (copy_to_user(buf, src, len))
- return -EFAULT;
-
- *ppos += len;
-
- return len;
-}
-
-static ssize_t cobalt_lcdfb_write(struct fb_info *info, const char __user *buf,
- size_t count, loff_t *ppos)
-{
- char dst[LCD_CHARS_MAX];
- unsigned long pos;
- int len, retval = 0;
-
- pos = *ppos;
- if (pos >= LCD_CHARS_MAX || count == 0)
- return 0;
-
- if (count > LCD_CHARS_MAX)
- count = LCD_CHARS_MAX;
-
- if (pos + count > LCD_CHARS_MAX)
- count = LCD_CHARS_MAX - pos;
-
- if (copy_from_user(dst, buf, count))
- return -EFAULT;
-
- for (len = 0; len < count; len++) {
- retval = lcd_busy_wait(info);
- if (retval < 0)
- break;
-
- lcd_write_control(info, LCD_TEXT_POS(pos));
-
- retval = lcd_busy_wait(info);
- if (retval < 0)
- break;
-
- lcd_write_data(info, dst[len]);
- if (pos == 0x0f)
- pos = 0x40;
- else
- pos++;
- }
-
- if (retval < 0 && signal_pending(current))
- return -ERESTARTSYS;
-
- *ppos += len;
-
- return len;
-}
-
-static int cobalt_lcdfb_blank(int blank_mode, struct fb_info *info)
-{
- int retval;
-
- retval = lcd_busy_wait(info);
- if (retval < 0)
- return retval;
-
- switch (blank_mode) {
- case FB_BLANK_UNBLANK:
- lcd_write_control(info, LCD_ON);
- break;
- default:
- lcd_write_control(info, LCD_OFF);
- break;
- }
-
- return 0;
-}
-
-static int cobalt_lcdfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
-{
- u32 x, y;
- int retval;
-
- switch (cursor->set) {
- case FB_CUR_SETPOS:
- x = cursor->image.dx;
- y = cursor->image.dy;
- if (x >= LCD_XRES_MAX || y >= LCD_YRES_MAX)
- return -EINVAL;
-
- retval = lcd_busy_wait(info);
- if (retval < 0)
- return retval;
-
- lcd_write_control(info,
- LCD_TEXT_POS(info->fix.line_length * y + x));
- break;
- default:
- return -EINVAL;
- }
-
- retval = lcd_busy_wait(info);
- if (retval < 0)
- return retval;
-
- if (cursor->enable)
- lcd_write_control(info, LCD_CURSOR_ON);
- else
- lcd_write_control(info, LCD_CURSOR_OFF);
-
- return 0;
-}
-
-static struct fb_ops cobalt_lcd_fbops = {
- .owner = THIS_MODULE,
- .fb_read = cobalt_lcdfb_read,
- .fb_write = cobalt_lcdfb_write,
- .fb_blank = cobalt_lcdfb_blank,
- .fb_cursor = cobalt_lcdfb_cursor,
-};
-
-static int cobalt_lcdfb_probe(struct platform_device *dev)
-{
- struct fb_info *info;
- struct resource *res;
- int retval;
-
- info = framebuffer_alloc(0, &dev->dev);
- if (!info)
- return -ENOMEM;
-
- res = platform_get_resource(dev, IORESOURCE_MEM, 0);
- if (!res) {
- framebuffer_release(info);
- return -EBUSY;
- }
-
- info->screen_size = resource_size(res);
- info->screen_base = devm_ioremap(&dev->dev, res->start,
- info->screen_size);
- info->fbops = &cobalt_lcd_fbops;
- info->fix = cobalt_lcdfb_fix;
- info->fix.smem_start = res->start;
- info->fix.smem_len = info->screen_size;
- info->pseudo_palette = NULL;
- info->par = NULL;
- info->flags = FBINFO_DEFAULT;
-
- retval = register_framebuffer(info);
- if (retval < 0) {
- framebuffer_release(info);
- return retval;
- }
-
- platform_set_drvdata(dev, info);
-
- lcd_clear(info);
-
- fb_info(info, "Cobalt server LCD frame buffer device\n");
-
- return 0;
-}
-
-static int cobalt_lcdfb_remove(struct platform_device *dev)
-{
- struct fb_info *info;
-
- info = platform_get_drvdata(dev);
- if (info) {
- unregister_framebuffer(info);
- framebuffer_release(info);
- }
-
- return 0;
-}
-
-static struct platform_driver cobalt_lcdfb_driver = {
- .probe = cobalt_lcdfb_probe,
- .remove = cobalt_lcdfb_remove,
- .driver = {
- .name = "cobalt-lcd",
- .owner = THIS_MODULE,
- },
-};
-module_platform_driver(cobalt_lcdfb_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Yoichi Yuasa");
-MODULE_DESCRIPTION("Cobalt server LCD frame buffer driver");