2 * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
4 * Freescale DIU Frame Buffer device driver
6 * Authors: Hongjun Chen <hong-jun.chen@freescale.com>
7 * Paul Widmer <paul.widmer@freescale.com>
8 * Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
9 * York Sun <yorksun@freescale.com>
11 * Based on imxfb.c Copyright (C) 2004 S.Hauer, Pengutronix
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU General Public License as published by the
15 * Free Software Foundation; either version 2 of the License, or (at your
16 * option) any later version.
20 #ifndef __FSL_DIU_FB_H__
21 #define __FSL_DIU_FB_H__
23 /* Arbitrary threshold to determine the allocation method
24 * See mpc8610fb_set_par(), map_video_memory(), and unmap_video_memory()
26 #define MEM_ALLOC_THRESHOLD (1024*768*4+32)
27 /* Minimum value that the pixel clock can be set to in pico seconds
28 * This is determined by platform clock/3 where the minimum platform
29 * clock is 533MHz. This gives 5629 pico seconds.
31 #define MIN_PIX_CLK 5629
32 #define MAX_PIX_CLK 96096
34 #include <linux/types.h>
41 struct mfb_chroma_key {
51 struct aoi_display_offset {
56 #define MFB_SET_CHROMA_KEY _IOW('M', 1, struct mfb_chroma_key)
57 #define MFB_WAIT_FOR_VSYNC _IOW('F', 0x20, u_int32_t)
58 #define MFB_SET_BRIGHTNESS _IOW('M', 3, __u8)
60 #define MFB_SET_ALPHA 0x80014d00
61 #define MFB_GET_ALPHA 0x40014d00
62 #define MFB_SET_AOID 0x80084d04
63 #define MFB_GET_AOID 0x40084d04
64 #define MFB_SET_PIXFMT 0x80014d08
65 #define MFB_GET_PIXFMT 0x40014d08
67 #define FBIOGET_GWINFO 0x46E0
68 #define FBIOPUT_GWINFO 0x46E1
71 #include <linux/spinlock.h>
74 * These are the fields of area descriptor(in DDR memory) for every plane
77 /* Word 0(32-bit) in DDR memory */
79 /* __u16 pixel_s:2; */
80 /* __u16 pallete:1; */
82 /* __u16 green_c:2; */
84 /* __u16 alpha_c:3; */
88 __be32 pix_fmt; /* hard coding pixel format */
90 /* Word 1(32-bit) in DDR memory */
93 /* Word 2(32-bit) in DDR memory */
94 /* __u32 delta_xs:11; */
96 /* __u32 delta_ys:11; */
98 /* __u32 g_alpha:8; */
99 __le32 src_size_g_alpha;
101 /* Word 3(32-bit) in DDR memory */
102 /* __u32 delta_xi:11; */
104 /* __u32 delta_yi:11; */
109 /* Word 4(32-bit) in DDR memory */
110 /*__u32 offset_xi:11;
117 /* Word 5(32-bit) in DDR memory */
118 /*__u32 offset_xd:11;
125 /* Word 6(32-bit) in DDR memory */
131 /* Word 7(32-bit) in DDR memory */
138 /* Word 8(32-bit) in DDR memory */
141 /* Word 9(32-bit) in DDR memory, just for 64-bit aligned */
143 } __attribute__ ((packed));
145 /* DIU register map */
167 } __attribute__ ((packed));
173 __u32 mode; /* DIU operation mode */
177 __u8 __iomem *vaddr; /* Virtual address */
178 dma_addr_t paddr; /* Physical address */
184 struct diu_addr gamma;
185 struct diu_addr pallete;
186 struct diu_addr cursor;
189 #define FSL_DIU_BASE_OFFSET 0x2C000 /* Offset of DIU */
190 #define INT_LCDC 64 /* DIU interrupt number */
192 #define FSL_AOI_NUM 6 /* 5 AOIs and one dummy AOI */
193 /* 1 for plane 0, 2 for plane 1&2 each */
195 /* Minimum X and Y resolutions */
199 /* HW cursor parameters */
202 /* Modes of operation of DIU */
203 #define MFB_MODE0 0 /* DIU off */
204 #define MFB_MODE1 1 /* All three planes output to display */
205 #define MFB_MODE2 2 /* Plane 1 to display, planes 2+3 written back*/
206 #define MFB_MODE3 3 /* All three planes written back to memory */
207 #define MFB_MODE4 4 /* Color bar generation */
209 /* INT_STATUS/INT_MASK field descriptions */
210 #define INT_VSYNC 0x01 /* Vsync interrupt */
211 #define INT_VSYNC_WB 0x02 /* Vsync interrupt for write back operation */
212 #define INT_UNDRUN 0x04 /* Under run exception interrupt */
213 #define INT_PARERR 0x08 /* Display parameters error interrupt */
214 #define INT_LS_BF_VS 0x10 /* Lines before vsync. interrupt */
216 /* Panels'operation modes */
217 #define MFB_TYPE_OUTPUT 0 /* Panel output to display */
218 #define MFB_TYPE_OFF 1 /* Panel off */
219 #define MFB_TYPE_WB 2 /* Panel written back to memory */
220 #define MFB_TYPE_TEST 3 /* Panel generate color bar */
222 #endif /* __KERNEL__ */
223 #endif /* __FSL_DIU_FB_H__ */