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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/hecubafb.c
parentc26ef3eb3c11274bad1b64498d0a134f85755250 (diff)
downloadop-kernel-dev-f7018c21350204c4cf628462f229d44d03545254.zip
op-kernel-dev-f7018c21350204c4cf628462f229d44d03545254.tar.gz
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/hecubafb.c')
-rw-r--r--drivers/video/hecubafb.c311
1 files changed, 0 insertions, 311 deletions
diff --git a/drivers/video/hecubafb.c b/drivers/video/hecubafb.c
deleted file mode 100644
index f64120e..0000000
--- a/drivers/video/hecubafb.c
+++ /dev/null
@@ -1,311 +0,0 @@
-/*
- * linux/drivers/video/hecubafb.c -- FB driver for Hecuba/Apollo controller
- *
- * Copyright (C) 2006, Jaya Kumar
- * This work was sponsored by CIS(M) Sdn Bhd
- *
- * 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 skeletonfb.c by James Simmons and Geert Uytterhoeven.
- * This work was possible because of apollo display code from E-Ink's website
- * http://support.eink.com/community
- * All information used to write this code is from public material made
- * available by E-Ink on its support site. Some commands such as 0xA4
- * were found by looping through cmd=0x00 thru 0xFF and supplying random
- * values. There are other commands that the display is capable of,
- * beyond the 5 used here but they are more complex.
- *
- * This driver is written to be used with the Hecuba display architecture.
- * The actual display chip is called Apollo and the interface electronics
- * it needs is called Hecuba.
- *
- * It is intended to be architecture independent. A board specific driver
- * must be used to perform all the physical IO interactions. An example
- * is provided as n411.c
- *
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.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/list.h>
-#include <linux/uaccess.h>
-
-#include <video/hecubafb.h>
-
-/* Display specific information */
-#define DPY_W 600
-#define DPY_H 800
-
-static struct fb_fix_screeninfo hecubafb_fix = {
- .id = "hecubafb",
- .type = FB_TYPE_PACKED_PIXELS,
- .visual = FB_VISUAL_MONO01,
- .xpanstep = 0,
- .ypanstep = 0,
- .ywrapstep = 0,
- .line_length = DPY_W,
- .accel = FB_ACCEL_NONE,
-};
-
-static struct fb_var_screeninfo hecubafb_var = {
- .xres = DPY_W,
- .yres = DPY_H,
- .xres_virtual = DPY_W,
- .yres_virtual = DPY_H,
- .bits_per_pixel = 1,
- .nonstd = 1,
-};
-
-/* main hecubafb functions */
-
-static void apollo_send_data(struct hecubafb_par *par, unsigned char data)
-{
- /* set data */
- par->board->set_data(par, data);
-
- /* set DS low */
- par->board->set_ctl(par, HCB_DS_BIT, 0);
-
- /* wait for ack */
- par->board->wait_for_ack(par, 0);
-
- /* set DS hi */
- par->board->set_ctl(par, HCB_DS_BIT, 1);
-
- /* wait for ack to clear */
- par->board->wait_for_ack(par, 1);
-}
-
-static void apollo_send_command(struct hecubafb_par *par, unsigned char data)
-{
- /* command so set CD to high */
- par->board->set_ctl(par, HCB_CD_BIT, 1);
-
- /* actually strobe with command */
- apollo_send_data(par, data);
-
- /* clear CD back to low */
- par->board->set_ctl(par, HCB_CD_BIT, 0);
-}
-
-static void hecubafb_dpy_update(struct hecubafb_par *par)
-{
- int i;
- unsigned char *buf = (unsigned char __force *)par->info->screen_base;
-
- apollo_send_command(par, APOLLO_START_NEW_IMG);
-
- for (i=0; i < (DPY_W*DPY_H/8); i++) {
- apollo_send_data(par, *(buf++));
- }
-
- apollo_send_command(par, APOLLO_STOP_IMG_DATA);
- apollo_send_command(par, APOLLO_DISPLAY_IMG);
-}
-
-/* this is called back from the deferred io workqueue */
-static void hecubafb_dpy_deferred_io(struct fb_info *info,
- struct list_head *pagelist)
-{
- hecubafb_dpy_update(info->par);
-}
-
-static void hecubafb_fillrect(struct fb_info *info,
- const struct fb_fillrect *rect)
-{
- struct hecubafb_par *par = info->par;
-
- sys_fillrect(info, rect);
-
- hecubafb_dpy_update(par);
-}
-
-static void hecubafb_copyarea(struct fb_info *info,
- const struct fb_copyarea *area)
-{
- struct hecubafb_par *par = info->par;
-
- sys_copyarea(info, area);
-
- hecubafb_dpy_update(par);
-}
-
-static void hecubafb_imageblit(struct fb_info *info,
- const struct fb_image *image)
-{
- struct hecubafb_par *par = info->par;
-
- sys_imageblit(info, image);
-
- hecubafb_dpy_update(par);
-}
-
-/*
- * this is the slow path from userspace. they can seek and write to
- * the fb. it's inefficient to do anything less than a full screen draw
- */
-static ssize_t hecubafb_write(struct fb_info *info, const char __user *buf,
- size_t count, loff_t *ppos)
-{
- struct hecubafb_par *par = info->par;
- unsigned long p = *ppos;
- void *dst;
- int err = 0;
- unsigned long total_size;
-
- if (info->state != FBINFO_STATE_RUNNING)
- return -EPERM;
-
- total_size = info->fix.smem_len;
-
- if (p > total_size)
- return -EFBIG;
-
- if (count > total_size) {
- err = -EFBIG;
- count = total_size;
- }
-
- if (count + p > total_size) {
- if (!err)
- err = -ENOSPC;
-
- count = total_size - p;
- }
-
- dst = (void __force *) (info->screen_base + p);
-
- if (copy_from_user(dst, buf, count))
- err = -EFAULT;
-
- if (!err)
- *ppos += count;
-
- hecubafb_dpy_update(par);
-
- return (err) ? err : count;
-}
-
-static struct fb_ops hecubafb_ops = {
- .owner = THIS_MODULE,
- .fb_read = fb_sys_read,
- .fb_write = hecubafb_write,
- .fb_fillrect = hecubafb_fillrect,
- .fb_copyarea = hecubafb_copyarea,
- .fb_imageblit = hecubafb_imageblit,
-};
-
-static struct fb_deferred_io hecubafb_defio = {
- .delay = HZ,
- .deferred_io = hecubafb_dpy_deferred_io,
-};
-
-static int hecubafb_probe(struct platform_device *dev)
-{
- struct fb_info *info;
- struct hecuba_board *board;
- int retval = -ENOMEM;
- int videomemorysize;
- unsigned char *videomemory;
- struct hecubafb_par *par;
-
- /* pick up board specific routines */
- board = dev->dev.platform_data;
- if (!board)
- return -EINVAL;
-
- /* try to count device specific driver, if can't, platform recalls */
- if (!try_module_get(board->owner))
- return -ENODEV;
-
- videomemorysize = (DPY_W*DPY_H)/8;
-
- videomemory = vzalloc(videomemorysize);
- if (!videomemory)
- goto err_videomem_alloc;
-
- info = framebuffer_alloc(sizeof(struct hecubafb_par), &dev->dev);
- if (!info)
- goto err_fballoc;
-
- info->screen_base = (char __force __iomem *)videomemory;
- info->fbops = &hecubafb_ops;
-
- info->var = hecubafb_var;
- info->fix = hecubafb_fix;
- info->fix.smem_len = videomemorysize;
- par = info->par;
- par->info = info;
- par->board = board;
- par->send_command = apollo_send_command;
- par->send_data = apollo_send_data;
-
- info->flags = FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB;
-
- info->fbdefio = &hecubafb_defio;
- fb_deferred_io_init(info);
-
- retval = register_framebuffer(info);
- if (retval < 0)
- goto err_fbreg;
- platform_set_drvdata(dev, info);
-
- fb_info(info, "Hecuba frame buffer device, using %dK of video memory\n",
- videomemorysize >> 10);
-
- /* this inits the dpy */
- retval = par->board->init(par);
- if (retval < 0)
- goto err_fbreg;
-
- return 0;
-err_fbreg:
- framebuffer_release(info);
-err_fballoc:
- vfree(videomemory);
-err_videomem_alloc:
- module_put(board->owner);
- return retval;
-}
-
-static int hecubafb_remove(struct platform_device *dev)
-{
- struct fb_info *info = platform_get_drvdata(dev);
-
- if (info) {
- struct hecubafb_par *par = info->par;
- fb_deferred_io_cleanup(info);
- unregister_framebuffer(info);
- vfree((void __force *)info->screen_base);
- if (par->board->remove)
- par->board->remove(par);
- module_put(par->board->owner);
- framebuffer_release(info);
- }
- return 0;
-}
-
-static struct platform_driver hecubafb_driver = {
- .probe = hecubafb_probe,
- .remove = hecubafb_remove,
- .driver = {
- .owner = THIS_MODULE,
- .name = "hecubafb",
- },
-};
-module_platform_driver(hecubafb_driver);
-
-MODULE_DESCRIPTION("fbdev driver for Hecuba/Apollo controller");
-MODULE_AUTHOR("Jaya Kumar");
-MODULE_LICENSE("GPL");
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