diff options
author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-02-13 15:31:38 +0200 |
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committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-04-17 08:10:19 +0300 |
commit | f7018c21350204c4cf628462f229d44d03545254 (patch) | |
tree | 408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/n411.c | |
parent | c26ef3eb3c11274bad1b64498d0a134f85755250 (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/n411.c')
-rw-r--r-- | drivers/video/n411.c | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/drivers/video/n411.c b/drivers/video/n411.c deleted file mode 100644 index 935830fea7b..00000000000 --- a/drivers/video/n411.c +++ /dev/null @@ -1,202 +0,0 @@ -/* - * linux/drivers/video/n411.c -- Platform device for N411 EPD kit - * - * Copyright (C) 2008, Jaya Kumar - * - * 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 driver is written to be used with the Hecuba display controller - * board, and tested with the EInk 800x600 display in 1 bit mode. - * The interface between Hecuba and the host is TTL based GPIO. The - * GPIO requirements are 8 writable data lines and 6 lines for control. - * Only 4 of the controls are actually used here but 6 for future use. - * The driver requires the IO addresses for data and control GPIO at - * load time. It is also possible to use this display with a standard - * PC parallel port. - * - * General notes: - * - User must set dio_addr=0xIOADDR cio_addr=0xIOADDR c2io_addr=0xIOADDR - * - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.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 <linux/irq.h> - -#include <video/hecubafb.h> - -static unsigned long dio_addr; -static unsigned long cio_addr; -static unsigned long c2io_addr; -static unsigned long splashval; -static unsigned int nosplash; -static unsigned char ctl; - -static void n411_set_ctl(struct hecubafb_par *par, unsigned char bit, unsigned - char state) -{ - switch (bit) { - case HCB_CD_BIT: - if (state) - ctl &= ~(HCB_CD_BIT); - else - ctl |= HCB_CD_BIT; - break; - case HCB_DS_BIT: - if (state) - ctl &= ~(HCB_DS_BIT); - else - ctl |= HCB_DS_BIT; - break; - } - outb(ctl, cio_addr); -} - -static unsigned char n411_get_ctl(struct hecubafb_par *par) -{ - return inb(c2io_addr); -} - -static void n411_set_data(struct hecubafb_par *par, unsigned char value) -{ - outb(value, dio_addr); -} - -static void n411_wait_for_ack(struct hecubafb_par *par, int clear) -{ - int timeout; - unsigned char tmp; - - timeout = 500; - do { - tmp = n411_get_ctl(par); - if ((tmp & HCB_ACK_BIT) && (!clear)) - return; - else if (!(tmp & HCB_ACK_BIT) && (clear)) - return; - udelay(1); - } while (timeout--); - printk(KERN_ERR "timed out waiting for ack\n"); -} - -static int n411_init_control(struct hecubafb_par *par) -{ - unsigned char tmp; - /* for init, we want the following setup to be set: - WUP = lo - ACK = hi - DS = hi - RW = hi - CD = lo - */ - - /* write WUP to lo, DS to hi, RW to hi, CD to lo */ - ctl = HCB_WUP_BIT | HCB_RW_BIT | HCB_CD_BIT ; - n411_set_ctl(par, HCB_DS_BIT, 1); - - /* check ACK is not lo */ - tmp = n411_get_ctl(par); - if (tmp & HCB_ACK_BIT) { - printk(KERN_ERR "Fail because ACK is already low\n"); - return -ENXIO; - } - - return 0; -} - - -static int n411_init_board(struct hecubafb_par *par) -{ - int retval; - - retval = n411_init_control(par); - if (retval) - return retval; - - par->send_command(par, APOLLO_INIT_DISPLAY); - par->send_data(par, 0x81); - - /* have to wait while display resets */ - udelay(1000); - - /* if we were told to splash the screen, we just clear it */ - if (!nosplash) { - par->send_command(par, APOLLO_ERASE_DISPLAY); - par->send_data(par, splashval); - } - - return 0; -} - -static struct hecuba_board n411_board = { - .owner = THIS_MODULE, - .init = n411_init_board, - .set_ctl = n411_set_ctl, - .set_data = n411_set_data, - .wait_for_ack = n411_wait_for_ack, -}; - -static struct platform_device *n411_device; -static int __init n411_init(void) -{ - int ret; - if (!dio_addr || !cio_addr || !c2io_addr) { - printk(KERN_WARNING "no IO addresses supplied\n"); - return -EINVAL; - } - - /* request our platform independent driver */ - request_module("hecubafb"); - - n411_device = platform_device_alloc("hecubafb", -1); - if (!n411_device) - return -ENOMEM; - - platform_device_add_data(n411_device, &n411_board, sizeof(n411_board)); - - /* this _add binds hecubafb to n411. hecubafb refcounts n411 */ - ret = platform_device_add(n411_device); - - if (ret) - platform_device_put(n411_device); - - return ret; - -} - -static void __exit n411_exit(void) -{ - platform_device_unregister(n411_device); -} - -module_init(n411_init); -module_exit(n411_exit); - -module_param(nosplash, uint, 0); -MODULE_PARM_DESC(nosplash, "Disable doing the splash screen"); -module_param(dio_addr, ulong, 0); -MODULE_PARM_DESC(dio_addr, "IO address for data, eg: 0x480"); -module_param(cio_addr, ulong, 0); -MODULE_PARM_DESC(cio_addr, "IO address for control, eg: 0x400"); -module_param(c2io_addr, ulong, 0); -MODULE_PARM_DESC(c2io_addr, "IO address for secondary control, eg: 0x408"); -module_param(splashval, ulong, 0); -MODULE_PARM_DESC(splashval, "Splash pattern: 0x00 is black, 0x01 is white"); - -MODULE_DESCRIPTION("board driver for n411 hecuba/apollo epd kit"); -MODULE_AUTHOR("Jaya Kumar"); -MODULE_LICENSE("GPL"); - |