summaryrefslogtreecommitdiff
path: root/include/linux/platform_data/video-pxafb.h
blob: 486b4c519ae2d6ef3afdb2eeb9d2cab212ced2ee (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
/*
 *  arch/arm/mach-pxa/include/mach/pxafb.h
 *
 *  Support for the xscale frame buffer.
 *
 *  Author:     Jean-Frederic Clere
 *  Created:    Sep 22, 2003
 *  Copyright:  jfclere@sinix.net
 *
 *  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.
 */

#include <linux/fb.h>
#include <mach/regs-lcd.h>

/*
 * Supported LCD connections
 *
 * bits 0 - 3: for LCD panel type:
 *
 *   STN  - for passive matrix
 *   DSTN - for dual scan passive matrix
 *   TFT  - for active matrix
 *
 * bits 4 - 9 : for bus width
 * bits 10-17 : for AC Bias Pin Frequency
 * bit     18 : for output enable polarity
 * bit     19 : for pixel clock edge
 * bit     20 : for output pixel format when base is RGBT16
 */
#define LCD_CONN_TYPE(_x)	((_x) & 0x0f)
#define LCD_CONN_WIDTH(_x)	(((_x) >> 4) & 0x1f)

#define LCD_TYPE_MASK		0xf
#define LCD_TYPE_UNKNOWN	0
#define LCD_TYPE_MONO_STN	1
#define LCD_TYPE_MONO_DSTN	2
#define LCD_TYPE_COLOR_STN	3
#define LCD_TYPE_COLOR_DSTN	4
#define LCD_TYPE_COLOR_TFT	5
#define LCD_TYPE_SMART_PANEL	6
#define LCD_TYPE_MAX		7

#define LCD_MONO_STN_4BPP	((4  << 4) | LCD_TYPE_MONO_STN)
#define LCD_MONO_STN_8BPP	((8  << 4) | LCD_TYPE_MONO_STN)
#define LCD_MONO_DSTN_8BPP	((8  << 4) | LCD_TYPE_MONO_DSTN)
#define LCD_COLOR_STN_8BPP	((8  << 4) | LCD_TYPE_COLOR_STN)
#define LCD_COLOR_DSTN_16BPP	((16 << 4) | LCD_TYPE_COLOR_DSTN)
#define LCD_COLOR_TFT_8BPP	((8  << 4) | LCD_TYPE_COLOR_TFT)
#define LCD_COLOR_TFT_16BPP	((16 << 4) | LCD_TYPE_COLOR_TFT)
#define LCD_COLOR_TFT_18BPP	((18 << 4) | LCD_TYPE_COLOR_TFT)
#define LCD_SMART_PANEL_8BPP	((8  << 4) | LCD_TYPE_SMART_PANEL)
#define LCD_SMART_PANEL_16BPP	((16 << 4) | LCD_TYPE_SMART_PANEL)
#define LCD_SMART_PANEL_18BPP	((18 << 4) | LCD_TYPE_SMART_PANEL)

#define LCD_AC_BIAS_FREQ(x)	(((x) & 0xff) << 10)
#define LCD_BIAS_ACTIVE_HIGH	(0 << 18)
#define LCD_BIAS_ACTIVE_LOW	(1 << 18)
#define LCD_PCLK_EDGE_RISE	(0 << 19)
#define LCD_PCLK_EDGE_FALL	(1 << 19)
#define LCD_ALTERNATE_MAPPING	(1 << 20)

/*
 * This structure describes the machine which we are running on.
 * It is set in linux/arch/arm/mach-pxa/machine_name.c and used in the probe routine
 * of linux/drivers/video/pxafb.c
 */
struct pxafb_mode_info {
	u_long		pixclock;

	u_short		xres;
	u_short		yres;

	u_char		bpp;
	u_int		cmap_greyscale:1,
			depth:8,
			transparency:1,
			unused:22;

	/* Parallel Mode Timing */
	u_char		hsync_len;
	u_char		left_margin;
	u_char		right_margin;

	u_char		vsync_len;
	u_char		upper_margin;
	u_char		lower_margin;
	u_char		sync;

	/* Smart Panel Mode Timing - see PXA27x DM 7.4.15.0.3 for details
	 * Note:
	 * 1. all parameters in nanosecond (ns)
	 * 2. a0cs{rd,wr}_set_hld are controlled by the same register bits
	 *    in pxa27x and pxa3xx, initialize them to the same value or
	 *    the larger one will be used
	 * 3. same to {rd,wr}_pulse_width
	 *
	 * 4. LCD_PCLK_EDGE_{RISE,FALL} controls the L_PCLK_WR polarity
	 * 5. sync & FB_SYNC_HOR_HIGH_ACT controls the L_LCLK_A0
	 * 6. sync & FB_SYNC_VERT_HIGH_ACT controls the L_LCLK_RD
	 */
	unsigned	a0csrd_set_hld;	/* A0 and CS Setup/Hold Time before/after L_FCLK_RD */
	unsigned	a0cswr_set_hld;	/* A0 and CS Setup/Hold Time before/after L_PCLK_WR */
	unsigned	wr_pulse_width;	/* L_PCLK_WR pulse width */
	unsigned	rd_pulse_width;	/* L_FCLK_RD pulse width */
	unsigned	cmd_inh_time;	/* Command Inhibit time between two writes */
	unsigned	op_hold_time;	/* Output Hold time from L_FCLK_RD negation */
};

struct pxafb_mach_info {
	struct pxafb_mode_info *modes;
	unsigned int num_modes;

	unsigned int	lcd_conn;
	unsigned long	video_mem_size;

	u_int		fixed_modes:1,
			cmap_inverse:1,
			cmap_static:1,
			acceleration_enabled:1,
			unused:28;

	/* The following should be defined in LCCR0
	 *      LCCR0_Act or LCCR0_Pas          Active or Passive
	 *      LCCR0_Sngl or LCCR0_Dual        Single/Dual panel
	 *      LCCR0_Mono or LCCR0_Color       Mono/Color
	 *      LCCR0_4PixMono or LCCR0_8PixMono (in mono single mode)
	 *      LCCR0_DMADel(Tcpu) (optional)   DMA request delay
	 *
	 * The following should not be defined in LCCR0:
	 *      LCCR0_OUM, LCCR0_BM, LCCR0_QDM, LCCR0_DIS, LCCR0_EFM
	 *      LCCR0_IUM, LCCR0_SFM, LCCR0_LDM, LCCR0_ENB
	 */
	u_int		lccr0;
	/* The following should be defined in LCCR3
	 *      LCCR3_OutEnH or LCCR3_OutEnL    Output enable polarity
	 *      LCCR3_PixRsEdg or LCCR3_PixFlEdg Pixel clock edge type
	 *      LCCR3_Acb(X)                    AB Bias pin frequency
	 *      LCCR3_DPC (optional)            Double Pixel Clock mode (untested)
	 *
	 * The following should not be defined in LCCR3
	 *      LCCR3_HSP, LCCR3_VSP, LCCR0_Pcd(x), LCCR3_Bpp
	 */
	u_int		lccr3;
	/* The following should be defined in LCCR4
	 *	LCCR4_PAL_FOR_0 or LCCR4_PAL_FOR_1 or LCCR4_PAL_FOR_2
	 *
	 * All other bits in LCCR4 should be left alone.
	 */
	u_int		lccr4;
	void (*pxafb_backlight_power)(int);
	void (*pxafb_lcd_power)(int, struct fb_var_screeninfo *);
	void (*smart_update)(struct fb_info *);
};

void pxa_set_fb_info(struct device *, struct pxafb_mach_info *);
unsigned long pxafb_get_hsync_time(struct device *dev);

#ifdef CONFIG_FB_PXA_SMARTPANEL
extern int pxafb_smart_queue(struct fb_info *info, uint16_t *cmds, int);
extern int pxafb_smart_flush(struct fb_info *info);
#else
static inline int pxafb_smart_queue(struct fb_info *info,
				    uint16_t *cmds, int n)
{
	return 0;
}

static inline int pxafb_smart_flush(struct fb_info *info)
{
	return 0;
}
#endif