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
74struct sm501_platdata_fbsub {
75	struct fb_videomode	*def_mode;
76	unsigned int		 def_bpp;
77	unsigned long		 max_mem;
78	unsigned int		 flags;
79};
80
81enum sm501_fb_routing {
82	SM501_FB_OWN		= 0,	/* CRT=>CRT, Panel=>Panel */
83	SM501_FB_CRT_PANEL	= 1,	/* Panel=>CRT, Panel=>Panel */
84};
85
86/* sm501_platdata_fb flag field bit definitions */
87
88#define SM501_FBPD_SWAP_FB_ENDIAN	(1<<0)	/* need to endian swap */
89
90/* sm501_platdata_fb
91 *
92 * configuration data for the framebuffer driver
93*/
94
95struct sm501_platdata_fb {
96	enum sm501_fb_routing		 fb_route;
97	unsigned int			 flags;
98	struct sm501_platdata_fbsub	*fb_crt;
99	struct sm501_platdata_fbsub	*fb_pnl;
100};
101
102/* gpio i2c */
103
104struct sm501_platdata_gpio_i2c {
105	unsigned int		pin_sda;
106	unsigned int		pin_scl;
107};
108
109/* sm501_initdata
110 *
111 * use for initialising values that may not have been setup
112 * before the driver is loaded.
113*/
114
115struct sm501_reg_init {
116	unsigned long		set;
117	unsigned long		mask;
118};
119
120#define SM501_USE_USB_HOST	(1<<0)
121#define SM501_USE_USB_SLAVE	(1<<1)
122#define SM501_USE_SSP0		(1<<2)
123#define SM501_USE_SSP1		(1<<3)
124#define SM501_USE_UART0		(1<<4)
125#define SM501_USE_UART1		(1<<5)
126#define SM501_USE_FBACCEL	(1<<6)
127#define SM501_USE_AC97		(1<<7)
128#define SM501_USE_I2S		(1<<8)
129
130#define SM501_USE_ALL		(0xffffffff)
131
132struct sm501_initdata {
133	struct sm501_reg_init	gpio_low;
134	struct sm501_reg_init	gpio_high;
135	struct sm501_reg_init	misc_timing;
136	struct sm501_reg_init	misc_control;
137
138	unsigned long		devices;
139	unsigned long		mclk;		/* non-zero to modify */
140	unsigned long		m1xclk;		/* non-zero to modify */
141};
142
143/* sm501_init_gpio
144 *
145 * default gpio settings
146*/
147
148struct sm501_init_gpio {
149	struct sm501_reg_init	gpio_data_low;
150	struct sm501_reg_init	gpio_data_high;
151	struct sm501_reg_init	gpio_ddr_low;
152	struct sm501_reg_init	gpio_ddr_high;
153};
154
155/* sm501_platdata
156 *
157 * This is passed with the platform device to allow the board
158 * to control the behaviour of the SM501 driver(s) which attach
159 * to the device.
160 *
161*/
162
163struct sm501_platdata {
164	struct sm501_initdata		*init;
165	struct sm501_init_gpio		*init_gpiop;
166	struct sm501_platdata_fb	*fb;
167
168	struct sm501_platdata_gpio_i2c	*gpio_i2c;
169	unsigned int			 gpio_i2c_nr;
170};
171