From 70e840499aae90be1de542894062ad2899d23642 Mon Sep 17 00:00:00 2001 From: Miguel Ojeda Sandonis Date: Sat, 10 Feb 2007 01:44:32 -0800 Subject: [PATCH] drivers: add LCD support Add support for auxiliary displays, the ks0108 LCD controller, the cfag12864b LCD and adds a framebuffer device: cfag12864bfb. - Add a "auxdisplay/" folder in "drivers/" for auxiliary display drivers. - Add support for the ks0108 LCD Controller as a device driver. (uses parport interface) - Add support for the cfag12864b LCD as a device driver. (uses ks0108 LCD Controller driver) - Add a framebuffer device called cfag12864bfb. (uses cfag12864b LCD driver) - Add the usual Documentation, includes, Makefiles, Kconfigs, MAINTAINERS, CREDITS... - Miguel Ojeda will maintain all the stuff above. [rdunlap@xenotime.net: workqueue fixups] [akpm@osdl.org: kconfig fix] Signed-off-by: Miguel Ojeda Sandonis Cc: Greg KH Acked-by: Paulo Marques Cc: "Randy.Dunlap" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/cfag12864b.h | 77 ++++++++++++++++++++++++++++++++++++++++++++++ include/linux/ks0108.h | 46 +++++++++++++++++++++++++++ 2 files changed, 123 insertions(+) create mode 100644 include/linux/cfag12864b.h create mode 100644 include/linux/ks0108.h (limited to 'include') diff --git a/include/linux/cfag12864b.h b/include/linux/cfag12864b.h new file mode 100644 index 00000000000..0bc45e69da5 --- /dev/null +++ b/include/linux/cfag12864b.h @@ -0,0 +1,77 @@ +/* + * Filename: cfag12864b.h + * Version: 0.1.0 + * Description: cfag12864b LCD driver header + * License: GPLv2 + * + * Author: Copyright (C) Miguel Ojeda Sandonis + * Date: 2006-10-12 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * 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 _CFAG12864B_H_ +#define _CFAG12864B_H_ + +#define CFAG12864B_WIDTH (128) +#define CFAG12864B_HEIGHT (64) +#define CFAG12864B_CONTROLLERS (2) +#define CFAG12864B_PAGES (8) +#define CFAG12864B_ADDRESSES (64) +#define CFAG12864B_SIZE ((CFAG12864B_CONTROLLERS) * \ + (CFAG12864B_PAGES) * \ + (CFAG12864B_ADDRESSES)) + +/* + * The driver will blit this buffer to the LCD + * + * Its size is CFAG12864B_SIZE. + */ +extern unsigned char * cfag12864b_buffer; + +/* + * Get the refresh rate of the LCD + * + * Returns the refresh rate (hertzs). + */ +extern unsigned int cfag12864b_getrate(void); + +/* + * Enable refreshing + * + * Returns 0 if successful (anyone was using it), + * or != 0 if failed (someone is using it). + */ +extern unsigned char cfag12864b_enable(void); + +/* + * Disable refreshing + * + * You should call this only when you finish using the LCD. + */ +extern void cfag12864b_disable(void); + +/* + * Is enabled refreshing? (is anyone using the module?) + * + * Returns 0 if refreshing is not enabled (anyone is using it), + * or != 0 if refreshing is enabled (someone is using it). + * + * Useful for buffer read-only modules. + */ +extern unsigned char cfag12864b_isenabled(void); + +#endif /* _CFAG12864B_H_ */ + diff --git a/include/linux/ks0108.h b/include/linux/ks0108.h new file mode 100644 index 00000000000..8047d4b17bf --- /dev/null +++ b/include/linux/ks0108.h @@ -0,0 +1,46 @@ +/* + * Filename: ks0108.h + * Version: 0.1.0 + * Description: ks0108 LCD Controller driver header + * License: GPLv2 + * + * Author: Copyright (C) Miguel Ojeda Sandonis + * Date: 2006-10-31 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * 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 _KS0108_H_ +#define _KS0108_H_ + +/* Write a byte to the data port */ +extern void ks0108_writedata(unsigned char byte); + +/* Write a byte to the control port */ +extern void ks0108_writecontrol(unsigned char byte); + +/* Set the controller's current display state (0..1) */ +extern void ks0108_displaystate(unsigned char state); + +/* Set the controller's current startline (0..63) */ +extern void ks0108_startline(unsigned char startline); + +/* Set the controller's current address (0..63) */ +extern void ks0108_address(unsigned char address); + +/* Set the controller's current page (0..7) */ +extern void ks0108_page(unsigned char page); + +#endif /* _KS0108_H_ */ -- cgit v1.2.3