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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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d14b272bc6
Add the ability to have pxafb use only certain fixed video modes (selected on a per platform basis). This is useful on production hardware such as the Zaurus cxx00 models where the valid modes are known in advance and any other modes could result in hardware damage. Following this, add support for the cxx00 QVGA mode. Mode information is passed to the lcd_power call to allowing the panel drivers to configure the display hardware accordingly (corgi_lcd already contains the functionality for the cxx00 panel). This mirrors the setup already used by w100fb. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
119 lines
2.8 KiB
C
119 lines
2.8 KiB
C
#ifndef __PXAFB_H__
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#define __PXAFB_H__
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/*
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* linux/drivers/video/pxafb.h
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* -- Intel PXA250/210 LCD Controller Frame Buffer Device
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*
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* Copyright (C) 1999 Eric A. Thomas.
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* Copyright (C) 2004 Jean-Frederic Clere.
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* Copyright (C) 2004 Ian Campbell.
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* Copyright (C) 2004 Jeff Lackey.
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* Based on sa1100fb.c Copyright (C) 1999 Eric A. Thomas
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* which in turn is
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* Based on acornfb.c Copyright (C) Russell King.
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*
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* 2001-08-03: Cliff Brake <cbrake@acclent.com>
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* - ported SA1100 code to PXA
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive
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* for more details.
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*/
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/* Shadows for LCD controller registers */
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struct pxafb_lcd_reg {
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unsigned int lccr0;
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unsigned int lccr1;
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unsigned int lccr2;
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unsigned int lccr3;
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};
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/* PXA LCD DMA descriptor */
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struct pxafb_dma_descriptor {
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unsigned int fdadr;
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unsigned int fsadr;
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unsigned int fidr;
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unsigned int ldcmd;
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};
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struct pxafb_info {
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struct fb_info fb;
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struct device *dev;
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/*
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* These are the addresses we mapped
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* the framebuffer memory region to.
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*/
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/* raw memory addresses */
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dma_addr_t map_dma; /* physical */
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u_char * map_cpu; /* virtual */
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u_int map_size;
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/* addresses of pieces placed in raw buffer */
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u_char * screen_cpu; /* virtual address of frame buffer */
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dma_addr_t screen_dma; /* physical address of frame buffer */
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u16 * palette_cpu; /* virtual address of palette memory */
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dma_addr_t palette_dma; /* physical address of palette memory */
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u_int palette_size;
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/* DMA descriptors */
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struct pxafb_dma_descriptor * dmadesc_fblow_cpu;
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dma_addr_t dmadesc_fblow_dma;
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struct pxafb_dma_descriptor * dmadesc_fbhigh_cpu;
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dma_addr_t dmadesc_fbhigh_dma;
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struct pxafb_dma_descriptor * dmadesc_palette_cpu;
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dma_addr_t dmadesc_palette_dma;
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dma_addr_t fdadr0;
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dma_addr_t fdadr1;
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u_int lccr0;
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u_int lccr3;
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u_int cmap_inverse:1,
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cmap_static:1,
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unused:30;
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u_int reg_lccr0;
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u_int reg_lccr1;
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u_int reg_lccr2;
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u_int reg_lccr3;
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unsigned long hsync_time;
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volatile u_char state;
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volatile u_char task_state;
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struct semaphore ctrlr_sem;
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wait_queue_head_t ctrlr_wait;
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struct work_struct task;
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#ifdef CONFIG_CPU_FREQ
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struct notifier_block freq_transition;
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struct notifier_block freq_policy;
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#endif
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};
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#define TO_INF(ptr,member) container_of(ptr,struct pxafb_info,member)
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/*
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* These are the actions for set_ctrlr_state
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*/
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#define C_DISABLE (0)
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#define C_ENABLE (1)
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#define C_DISABLE_CLKCHANGE (2)
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#define C_ENABLE_CLKCHANGE (3)
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#define C_REENABLE (4)
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#define C_DISABLE_PM (5)
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#define C_ENABLE_PM (6)
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#define C_STARTUP (7)
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#define PXA_NAME "PXA"
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/*
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* Minimum X and Y resolutions
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*/
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#define MIN_XRES 64
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#define MIN_YRES 64
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#endif /* __PXAFB_H__ */
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