tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* include/linux/sm501.h
2 *
3 * Copyright (c) 2006 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
5 * Vincent Sanders <vince@simtec.co.uk>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19*/
20
21extern int sm501_unit_power(struct device *dev,
22 unsigned int unit, unsigned int to);
23
24extern unsigned long sm501_set_clock(struct device *dev,
25 int clksrc, unsigned long freq);
26
27extern unsigned long sm501_find_clock(int clksrc, unsigned long req_freq);
28
29/* sm501_misc_control
30 *
31 * Modify the SM501's MISC_CONTROL register
32*/
33
34extern int sm501_misc_control(struct device *dev,
35 unsigned long set, unsigned long clear);
36
37/* sm501_modify_reg
38 *
39 * Modify a register in the SM501 which may be shared with other
40 * drivers.
41*/
42
43extern unsigned long sm501_modify_reg(struct device *dev,
44 unsigned long reg,
45 unsigned long set,
46 unsigned long clear);
47
48/* sm501_gpio_set
49 *
50 * set the state of the given GPIO line
51*/
52
53extern void sm501_gpio_set(struct device *dev,
54 unsigned long gpio,
55 unsigned int to,
56 unsigned int dir);
57
58/* sm501_gpio_get
59 *
60 * get the state of the given GPIO line
61*/
62
63extern unsigned long sm501_gpio_get(struct device *dev,
64 unsigned long gpio);
65
66
67/* Platform data definitions */
68
69#define SM501FB_FLAG_USE_INIT_MODE (1<<0)
70#define SM501FB_FLAG_DISABLE_AT_EXIT (1<<1)
71#define SM501FB_FLAG_USE_HWCURSOR (1<<2)
72#define SM501FB_FLAG_USE_HWACCEL (1<<3)
73#define SM501FB_FLAG_PANEL_USE_FPEN (1<<4)
74#define SM501FB_FLAG_PANEL_USE_VBIASEN (1<<5)
75
76struct sm501_platdata_fbsub {
77 struct fb_videomode *def_mode;
78 unsigned int def_bpp;
79 unsigned long max_mem;
80 unsigned int flags;
81};
82
83enum sm501_fb_routing {
84 SM501_FB_OWN = 0, /* CRT=>CRT, Panel=>Panel */
85 SM501_FB_CRT_PANEL = 1, /* Panel=>CRT, Panel=>Panel */
86};
87
88/* sm501_platdata_fb flag field bit definitions */
89
90#define SM501_FBPD_SWAP_FB_ENDIAN (1<<0) /* need to endian swap */
91
92/* sm501_platdata_fb
93 *
94 * configuration data for the framebuffer driver
95*/
96
97struct sm501_platdata_fb {
98 enum sm501_fb_routing fb_route;
99 unsigned int flags;
100 struct sm501_platdata_fbsub *fb_crt;
101 struct sm501_platdata_fbsub *fb_pnl;
102};
103
104/* gpio i2c */
105
106struct sm501_platdata_gpio_i2c {
107 unsigned int pin_sda;
108 unsigned int pin_scl;
109};
110
111/* sm501_initdata
112 *
113 * use for initialising values that may not have been setup
114 * before the driver is loaded.
115*/
116
117struct sm501_reg_init {
118 unsigned long set;
119 unsigned long mask;
120};
121
122#define SM501_USE_USB_HOST (1<<0)
123#define SM501_USE_USB_SLAVE (1<<1)
124#define SM501_USE_SSP0 (1<<2)
125#define SM501_USE_SSP1 (1<<3)
126#define SM501_USE_UART0 (1<<4)
127#define SM501_USE_UART1 (1<<5)
128#define SM501_USE_FBACCEL (1<<6)
129#define SM501_USE_AC97 (1<<7)
130#define SM501_USE_I2S (1<<8)
131
132#define SM501_USE_ALL (0xffffffff)
133
134struct sm501_initdata {
135 struct sm501_reg_init gpio_low;
136 struct sm501_reg_init gpio_high;
137 struct sm501_reg_init misc_timing;
138 struct sm501_reg_init misc_control;
139
140 unsigned long devices;
141 unsigned long mclk; /* non-zero to modify */
142 unsigned long m1xclk; /* non-zero to modify */
143};
144
145/* sm501_init_gpio
146 *
147 * default gpio settings
148*/
149
150struct sm501_init_gpio {
151 struct sm501_reg_init gpio_data_low;
152 struct sm501_reg_init gpio_data_high;
153 struct sm501_reg_init gpio_ddr_low;
154 struct sm501_reg_init gpio_ddr_high;
155};
156
157/* sm501_platdata
158 *
159 * This is passed with the platform device to allow the board
160 * to control the behaviour of the SM501 driver(s) which attach
161 * to the device.
162 *
163*/
164
165struct sm501_platdata {
166 struct sm501_initdata *init;
167 struct sm501_init_gpio *init_gpiop;
168 struct sm501_platdata_fb *fb;
169
170 struct sm501_platdata_gpio_i2c *gpio_i2c;
171 unsigned int gpio_i2c_nr;
172};