fd0858017e
Adds different wiring mode for the LCD screen. The legacy atmel LCDC IP uses a non standard color mode, "BGR-555.1" instead "RGB-565". The major part of graphic stacks for embedded systems uses only "RGB-565". It is possible to swap LCD IOs instead of doing this bit swapping by software (See application note AT91SAM9 LCD Controller http://www.atmel.com/dyn/resources/prod_documents/doc6300.pdf) This wire swapping is done on the at91sam9rl-ek board (board code using this patch will come later). Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Hans-Christian Egtvedt <hcegtvedt@atmel.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Andrew Victor <avictor.za@gmail.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
214 lines
7 KiB
C
214 lines
7 KiB
C
/*
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* Header file for AT91/AT32 LCD Controller
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*
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* Data structure and register user interface
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*
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* Copyright (C) 2007 Atmel Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __ATMEL_LCDC_H__
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#define __ATMEL_LCDC_H__
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/* Way LCD wires are connected to the chip:
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* Some Atmel chips use BGR color mode (instead of standard RGB)
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* A swapped wiring onboard can bring to RGB mode.
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*/
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#define ATMEL_LCDC_WIRING_BGR 0
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#define ATMEL_LCDC_WIRING_RGB 1
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/* LCD Controller info data structure, stored in device platform_data */
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struct atmel_lcdfb_info {
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spinlock_t lock;
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struct fb_info *info;
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void __iomem *mmio;
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unsigned long irq_base;
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unsigned int guard_time;
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struct platform_device *pdev;
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struct clk *bus_clk;
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struct clk *lcdc_clk;
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#ifdef CONFIG_BACKLIGHT_ATMEL_LCDC
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struct backlight_device *backlight;
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u8 bl_power;
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#endif
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bool lcdcon_is_backlight;
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u8 saved_lcdcon;
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u8 default_bpp;
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u8 lcd_wiring_mode;
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unsigned int default_lcdcon2;
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unsigned int default_dmacon;
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void (*atmel_lcdfb_power_control)(int on);
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struct fb_monspecs *default_monspecs;
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u32 pseudo_palette[16];
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};
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#define ATMEL_LCDC_DMABADDR1 0x00
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#define ATMEL_LCDC_DMABADDR2 0x04
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#define ATMEL_LCDC_DMAFRMPT1 0x08
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#define ATMEL_LCDC_DMAFRMPT2 0x0c
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#define ATMEL_LCDC_DMAFRMADD1 0x10
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#define ATMEL_LCDC_DMAFRMADD2 0x14
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#define ATMEL_LCDC_DMAFRMCFG 0x18
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#define ATMEL_LCDC_FRSIZE (0x7fffff << 0)
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#define ATMEL_LCDC_BLENGTH_OFFSET 24
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#define ATMEL_LCDC_BLENGTH (0x7f << ATMEL_LCDC_BLENGTH_OFFSET)
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#define ATMEL_LCDC_DMACON 0x1c
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#define ATMEL_LCDC_DMAEN (0x1 << 0)
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#define ATMEL_LCDC_DMARST (0x1 << 1)
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#define ATMEL_LCDC_DMABUSY (0x1 << 2)
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#define ATMEL_LCDC_DMAUPDT (0x1 << 3)
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#define ATMEL_LCDC_DMA2DEN (0x1 << 4)
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#define ATMEL_LCDC_DMA2DCFG 0x20
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#define ATMEL_LCDC_ADDRINC_OFFSET 0
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#define ATMEL_LCDC_ADDRINC (0xffff)
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#define ATMEL_LCDC_PIXELOFF_OFFSET 24
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#define ATMEL_LCDC_PIXELOFF (0x1f << 24)
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#define ATMEL_LCDC_LCDCON1 0x0800
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#define ATMEL_LCDC_BYPASS (1 << 0)
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#define ATMEL_LCDC_CLKVAL_OFFSET 12
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#define ATMEL_LCDC_CLKVAL (0x1ff << ATMEL_LCDC_CLKVAL_OFFSET)
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#define ATMEL_LCDC_LINCNT (0x7ff << 21)
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#define ATMEL_LCDC_LCDCON2 0x0804
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#define ATMEL_LCDC_DISTYPE (3 << 0)
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#define ATMEL_LCDC_DISTYPE_STNMONO (0 << 0)
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#define ATMEL_LCDC_DISTYPE_STNCOLOR (1 << 0)
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#define ATMEL_LCDC_DISTYPE_TFT (2 << 0)
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#define ATMEL_LCDC_SCANMOD (1 << 2)
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#define ATMEL_LCDC_SCANMOD_SINGLE (0 << 2)
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#define ATMEL_LCDC_SCANMOD_DUAL (1 << 2)
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#define ATMEL_LCDC_IFWIDTH (3 << 3)
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#define ATMEL_LCDC_IFWIDTH_4 (0 << 3)
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#define ATMEL_LCDC_IFWIDTH_8 (1 << 3)
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#define ATMEL_LCDC_IFWIDTH_16 (2 << 3)
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#define ATMEL_LCDC_PIXELSIZE (7 << 5)
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#define ATMEL_LCDC_PIXELSIZE_1 (0 << 5)
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#define ATMEL_LCDC_PIXELSIZE_2 (1 << 5)
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#define ATMEL_LCDC_PIXELSIZE_4 (2 << 5)
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#define ATMEL_LCDC_PIXELSIZE_8 (3 << 5)
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#define ATMEL_LCDC_PIXELSIZE_16 (4 << 5)
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#define ATMEL_LCDC_PIXELSIZE_24 (5 << 5)
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#define ATMEL_LCDC_PIXELSIZE_32 (6 << 5)
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#define ATMEL_LCDC_INVVD (1 << 8)
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#define ATMEL_LCDC_INVVD_NORMAL (0 << 8)
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#define ATMEL_LCDC_INVVD_INVERTED (1 << 8)
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#define ATMEL_LCDC_INVFRAME (1 << 9 )
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#define ATMEL_LCDC_INVFRAME_NORMAL (0 << 9)
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#define ATMEL_LCDC_INVFRAME_INVERTED (1 << 9)
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#define ATMEL_LCDC_INVLINE (1 << 10)
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#define ATMEL_LCDC_INVLINE_NORMAL (0 << 10)
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#define ATMEL_LCDC_INVLINE_INVERTED (1 << 10)
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#define ATMEL_LCDC_INVCLK (1 << 11)
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#define ATMEL_LCDC_INVCLK_NORMAL (0 << 11)
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#define ATMEL_LCDC_INVCLK_INVERTED (1 << 11)
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#define ATMEL_LCDC_INVDVAL (1 << 12)
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#define ATMEL_LCDC_INVDVAL_NORMAL (0 << 12)
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#define ATMEL_LCDC_INVDVAL_INVERTED (1 << 12)
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#define ATMEL_LCDC_CLKMOD (1 << 15)
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#define ATMEL_LCDC_CLKMOD_ACTIVEDISPLAY (0 << 15)
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#define ATMEL_LCDC_CLKMOD_ALWAYSACTIVE (1 << 15)
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#define ATMEL_LCDC_MEMOR (1 << 31)
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#define ATMEL_LCDC_MEMOR_BIG (0 << 31)
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#define ATMEL_LCDC_MEMOR_LITTLE (1 << 31)
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#define ATMEL_LCDC_TIM1 0x0808
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#define ATMEL_LCDC_VFP (0xffU << 0)
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#define ATMEL_LCDC_VBP_OFFSET 8
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#define ATMEL_LCDC_VBP (0xffU << ATMEL_LCDC_VBP_OFFSET)
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#define ATMEL_LCDC_VPW_OFFSET 16
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#define ATMEL_LCDC_VPW (0x3fU << ATMEL_LCDC_VPW_OFFSET)
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#define ATMEL_LCDC_VHDLY_OFFSET 24
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#define ATMEL_LCDC_VHDLY (0xfU << ATMEL_LCDC_VHDLY_OFFSET)
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#define ATMEL_LCDC_TIM2 0x080c
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#define ATMEL_LCDC_HBP (0xffU << 0)
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#define ATMEL_LCDC_HPW_OFFSET 8
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#define ATMEL_LCDC_HPW (0x3fU << ATMEL_LCDC_HPW_OFFSET)
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#define ATMEL_LCDC_HFP_OFFSET 21
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#define ATMEL_LCDC_HFP (0x7ffU << ATMEL_LCDC_HFP_OFFSET)
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#define ATMEL_LCDC_LCDFRMCFG 0x0810
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#define ATMEL_LCDC_LINEVAL (0x7ff << 0)
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#define ATMEL_LCDC_HOZVAL_OFFSET 21
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#define ATMEL_LCDC_HOZVAL (0x7ff << ATMEL_LCDC_HOZVAL_OFFSET)
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#define ATMEL_LCDC_FIFO 0x0814
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#define ATMEL_LCDC_FIFOTH (0xffff)
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#define ATMEL_LCDC_MVAL 0x0818
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#define ATMEL_LCDC_DP1_2 0x081c
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#define ATMEL_LCDC_DP4_7 0x0820
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#define ATMEL_LCDC_DP3_5 0x0824
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#define ATMEL_LCDC_DP2_3 0x0828
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#define ATMEL_LCDC_DP5_7 0x082c
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#define ATMEL_LCDC_DP3_4 0x0830
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#define ATMEL_LCDC_DP4_5 0x0834
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#define ATMEL_LCDC_DP6_7 0x0838
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#define ATMEL_LCDC_DP1_2_VAL (0xff)
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#define ATMEL_LCDC_DP4_7_VAL (0xfffffff)
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#define ATMEL_LCDC_DP3_5_VAL (0xfffff)
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#define ATMEL_LCDC_DP2_3_VAL (0xfff)
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#define ATMEL_LCDC_DP5_7_VAL (0xfffffff)
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#define ATMEL_LCDC_DP3_4_VAL (0xffff)
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#define ATMEL_LCDC_DP4_5_VAL (0xfffff)
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#define ATMEL_LCDC_DP6_7_VAL (0xfffffff)
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#define ATMEL_LCDC_PWRCON 0x083c
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#define ATMEL_LCDC_PWR (1 << 0)
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#define ATMEL_LCDC_GUARDT_OFFSET 1
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#define ATMEL_LCDC_GUARDT (0x7f << ATMEL_LCDC_GUARDT_OFFSET)
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#define ATMEL_LCDC_BUSY (1 << 31)
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#define ATMEL_LCDC_CONTRAST_CTR 0x0840
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#define ATMEL_LCDC_PS (3 << 0)
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#define ATMEL_LCDC_PS_DIV1 (0 << 0)
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#define ATMEL_LCDC_PS_DIV2 (1 << 0)
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#define ATMEL_LCDC_PS_DIV4 (2 << 0)
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#define ATMEL_LCDC_PS_DIV8 (3 << 0)
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#define ATMEL_LCDC_POL (1 << 2)
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#define ATMEL_LCDC_POL_NEGATIVE (0 << 2)
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#define ATMEL_LCDC_POL_POSITIVE (1 << 2)
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#define ATMEL_LCDC_ENA (1 << 3)
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#define ATMEL_LCDC_ENA_PWMDISABLE (0 << 3)
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#define ATMEL_LCDC_ENA_PWMENABLE (1 << 3)
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#define ATMEL_LCDC_CONTRAST_VAL 0x0844
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#define ATMEL_LCDC_CVAL (0xff)
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#define ATMEL_LCDC_IER 0x0848
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#define ATMEL_LCDC_IDR 0x084c
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#define ATMEL_LCDC_IMR 0x0850
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#define ATMEL_LCDC_ISR 0x0854
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#define ATMEL_LCDC_ICR 0x0858
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#define ATMEL_LCDC_LNI (1 << 0)
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#define ATMEL_LCDC_LSTLNI (1 << 1)
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#define ATMEL_LCDC_EOFI (1 << 2)
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#define ATMEL_LCDC_UFLWI (1 << 4)
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#define ATMEL_LCDC_OWRI (1 << 5)
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#define ATMEL_LCDC_MERI (1 << 6)
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#define ATMEL_LCDC_LUT(n) (0x0c00 + ((n)*4))
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#endif /* __ATMEL_LCDC_H__ */
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