splice: only return -EAGAIN if there's hope of more data
[linux-2.6.22.y-op.git] / include / video / atmel_lcdc.h
blob4eea63761a3f481fa8f6dd9ed5259056fee71668
1 /*
2 * Header file for AT91/AT32 LCD Controller
4 * Data structure and register user interface
6 * Copyright (C) 2007 Atmel Corporation
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #ifndef __ATMEL_LCDC_H__
23 #define __ATMEL_LCDC_H__
25 /* LCD Controller info data structure */
26 struct atmel_lcdfb_info {
27 spinlock_t lock;
28 struct fb_info *info;
29 void __iomem *mmio;
30 unsigned long irq_base;
32 unsigned int guard_time;
33 struct platform_device *pdev;
34 struct clk *bus_clk;
35 struct clk *lcdc_clk;
36 unsigned int default_bpp;
37 unsigned int default_lcdcon2;
38 unsigned int default_dmacon;
39 void (*atmel_lcdfb_power_control)(int on);
40 struct fb_monspecs *default_monspecs;
41 u32 pseudo_palette[16];
44 #define ATMEL_LCDC_DMABADDR1 0x00
45 #define ATMEL_LCDC_DMABADDR2 0x04
46 #define ATMEL_LCDC_DMAFRMPT1 0x08
47 #define ATMEL_LCDC_DMAFRMPT2 0x0c
48 #define ATMEL_LCDC_DMAFRMADD1 0x10
49 #define ATMEL_LCDC_DMAFRMADD2 0x14
51 #define ATMEL_LCDC_DMAFRMCFG 0x18
52 #define ATMEL_LCDC_FRSIZE (0x7fffff << 0)
53 #define ATMEL_LCDC_BLENGTH_OFFSET 24
54 #define ATMEL_LCDC_BLENGTH (0x7f << ATMEL_LCDC_BLENGTH_OFFSET)
56 #define ATMEL_LCDC_DMACON 0x1c
57 #define ATMEL_LCDC_DMAEN (0x1 << 0)
58 #define ATMEL_LCDC_DMARST (0x1 << 1)
59 #define ATMEL_LCDC_DMABUSY (0x1 << 2)
60 #define ATMEL_LCDC_DMAUPDT (0x1 << 3)
61 #define ATMEL_LCDC_DMA2DEN (0x1 << 4)
63 #define ATMEL_LCDC_DMA2DCFG 0x20
64 #define ATMEL_LCDC_ADDRINC_OFFSET 0
65 #define ATMEL_LCDC_ADDRINC (0xffff)
66 #define ATMEL_LCDC_PIXELOFF_OFFSET 24
67 #define ATMEL_LCDC_PIXELOFF (0x1f << 24)
69 #define ATMEL_LCDC_LCDCON1 0x0800
70 #define ATMEL_LCDC_BYPASS (1 << 0)
71 #define ATMEL_LCDC_CLKVAL_OFFSET 12
72 #define ATMEL_LCDC_CLKVAL (0x1ff << ATMEL_LCDC_CLKVAL_OFFSET)
73 #define ATMEL_LCDC_LINCNT (0x7ff << 21)
75 #define ATMEL_LCDC_LCDCON2 0x0804
76 #define ATMEL_LCDC_DISTYPE (3 << 0)
77 #define ATMEL_LCDC_DISTYPE_STNMONO (0 << 0)
78 #define ATMEL_LCDC_DISTYPE_STNCOLOR (1 << 0)
79 #define ATMEL_LCDC_DISTYPE_TFT (2 << 0)
80 #define ATMEL_LCDC_SCANMOD (1 << 2)
81 #define ATMEL_LCDC_SCANMOD_SINGLE (0 << 2)
82 #define ATMEL_LCDC_SCANMOD_DUAL (1 << 2)
83 #define ATMEL_LCDC_IFWIDTH (3 << 3)
84 #define ATMEL_LCDC_IFWIDTH_4 (0 << 3)
85 #define ATMEL_LCDC_IFWIDTH_8 (1 << 3)
86 #define ATMEL_LCDC_IFWIDTH_16 (2 << 3)
87 #define ATMEL_LCDC_PIXELSIZE (7 << 5)
88 #define ATMEL_LCDC_PIXELSIZE_1 (0 << 5)
89 #define ATMEL_LCDC_PIXELSIZE_2 (1 << 5)
90 #define ATMEL_LCDC_PIXELSIZE_4 (2 << 5)
91 #define ATMEL_LCDC_PIXELSIZE_8 (3 << 5)
92 #define ATMEL_LCDC_PIXELSIZE_16 (4 << 5)
93 #define ATMEL_LCDC_PIXELSIZE_24 (5 << 5)
94 #define ATMEL_LCDC_PIXELSIZE_32 (6 << 5)
95 #define ATMEL_LCDC_INVVD (1 << 8)
96 #define ATMEL_LCDC_INVVD_NORMAL (0 << 8)
97 #define ATMEL_LCDC_INVVD_INVERTED (1 << 8)
98 #define ATMEL_LCDC_INVFRAME (1 << 9 )
99 #define ATMEL_LCDC_INVFRAME_NORMAL (0 << 9)
100 #define ATMEL_LCDC_INVFRAME_INVERTED (1 << 9)
101 #define ATMEL_LCDC_INVLINE (1 << 10)
102 #define ATMEL_LCDC_INVLINE_NORMAL (0 << 10)
103 #define ATMEL_LCDC_INVLINE_INVERTED (1 << 10)
104 #define ATMEL_LCDC_INVCLK (1 << 11)
105 #define ATMEL_LCDC_INVCLK_NORMAL (0 << 11)
106 #define ATMEL_LCDC_INVCLK_INVERTED (1 << 11)
107 #define ATMEL_LCDC_INVDVAL (1 << 12)
108 #define ATMEL_LCDC_INVDVAL_NORMAL (0 << 12)
109 #define ATMEL_LCDC_INVDVAL_INVERTED (1 << 12)
110 #define ATMEL_LCDC_CLKMOD (1 << 15)
111 #define ATMEL_LCDC_CLKMOD_ACTIVEDISPLAY (0 << 15)
112 #define ATMEL_LCDC_CLKMOD_ALWAYSACTIVE (1 << 15)
113 #define ATMEL_LCDC_MEMOR (1 << 31)
114 #define ATMEL_LCDC_MEMOR_BIG (0 << 31)
115 #define ATMEL_LCDC_MEMOR_LITTLE (1 << 31)
117 #define ATMEL_LCDC_TIM1 0x0808
118 #define ATMEL_LCDC_VFP (0xff << 0)
119 #define ATMEL_LCDC_VBP_OFFSET 8
120 #define ATMEL_LCDC_VBP (0xff << ATMEL_LCDC_VBP_OFFSET)
121 #define ATMEL_LCDC_VPW_OFFSET 16
122 #define ATMEL_LCDC_VPW (0x3f << ATMEL_LCDC_VPW_OFFSET)
123 #define ATMEL_LCDC_VHDLY_OFFSET 24
124 #define ATMEL_LCDC_VHDLY (0xf << ATMEL_LCDC_VHDLY_OFFSET)
126 #define ATMEL_LCDC_TIM2 0x080c
127 #define ATMEL_LCDC_HBP (0xff << 0)
128 #define ATMEL_LCDC_HPW_OFFSET 8
129 #define ATMEL_LCDC_HPW (0x3f << ATMEL_LCDC_HPW_OFFSET)
130 #define ATMEL_LCDC_HFP_OFFSET 21
131 #define ATMEL_LCDC_HFP (0x7ff << ATMEL_LCDC_HFP_OFFSET)
133 #define ATMEL_LCDC_LCDFRMCFG 0x0810
134 #define ATMEL_LCDC_LINEVAL (0x7ff << 0)
135 #define ATMEL_LCDC_HOZVAL_OFFSET 21
136 #define ATMEL_LCDC_HOZVAL (0x7ff << ATMEL_LCDC_HOZVAL_OFFSET)
138 #define ATMEL_LCDC_FIFO 0x0814
139 #define ATMEL_LCDC_FIFOTH (0xffff)
141 #define ATMEL_LCDC_MVAL 0x0818
143 #define ATMEL_LCDC_DP1_2 0x081c
144 #define ATMEL_LCDC_DP4_7 0x0820
145 #define ATMEL_LCDC_DP3_5 0x0824
146 #define ATMEL_LCDC_DP2_3 0x0828
147 #define ATMEL_LCDC_DP5_7 0x082c
148 #define ATMEL_LCDC_DP3_4 0x0830
149 #define ATMEL_LCDC_DP4_5 0x0834
150 #define ATMEL_LCDC_DP6_7 0x0838
151 #define ATMEL_LCDC_DP1_2_VAL (0xff)
152 #define ATMEL_LCDC_DP4_7_VAL (0xfffffff)
153 #define ATMEL_LCDC_DP3_5_VAL (0xfffff)
154 #define ATMEL_LCDC_DP2_3_VAL (0xfff)
155 #define ATMEL_LCDC_DP5_7_VAL (0xfffffff)
156 #define ATMEL_LCDC_DP3_4_VAL (0xffff)
157 #define ATMEL_LCDC_DP4_5_VAL (0xfffff)
158 #define ATMEL_LCDC_DP6_7_VAL (0xfffffff)
160 #define ATMEL_LCDC_PWRCON 0x083c
161 #define ATMEL_LCDC_PWR (1 << 0)
162 #define ATMEL_LCDC_GUARDT_OFFSET 1
163 #define ATMEL_LCDC_GUARDT (0x7f << ATMEL_LCDC_GUARDT_OFFSET)
164 #define ATMEL_LCDC_BUSY (1 << 31)
166 #define ATMEL_LCDC_CONTRAST_CTR 0x0840
167 #define ATMEL_LCDC_PS (3 << 0)
168 #define ATMEL_LCDC_PS_DIV1 (0 << 0)
169 #define ATMEL_LCDC_PS_DIV2 (1 << 0)
170 #define ATMEL_LCDC_PS_DIV4 (2 << 0)
171 #define ATMEL_LCDC_PS_DIV8 (3 << 0)
172 #define ATMEL_LCDC_POL (1 << 2)
173 #define ATMEL_LCDC_POL_NEGATIVE (0 << 2)
174 #define ATMEL_LCDC_POL_POSITIVE (1 << 2)
175 #define ATMEL_LCDC_ENA (1 << 3)
176 #define ATMEL_LCDC_ENA_PWMDISABLE (0 << 3)
177 #define ATMEL_LCDC_ENA_PWMENABLE (1 << 3)
179 #define ATMEL_LCDC_CONTRAST_VAL 0x0844
180 #define ATMEL_LCDC_CVAL (0xff)
182 #define ATMEL_LCDC_IER 0x0848
183 #define ATMEL_LCDC_IDR 0x084c
184 #define ATMEL_LCDC_IMR 0x0850
185 #define ATMEL_LCDC_ISR 0x0854
186 #define ATMEL_LCDC_ICR 0x0858
187 #define ATMEL_LCDC_LNI (1 << 0)
188 #define ATMEL_LCDC_LSTLNI (1 << 1)
189 #define ATMEL_LCDC_EOFI (1 << 2)
190 #define ATMEL_LCDC_UFLWI (1 << 4)
191 #define ATMEL_LCDC_OWRI (1 << 5)
192 #define ATMEL_LCDC_MERI (1 << 6)
194 #define ATMEL_LCDC_LUT(n) (0x0c00 + ((n)*4))
196 #endif /* __ATMEL_LCDC_H__ */