2 * Copyright (C) ST-Ericsson SA 2010
4 * License Terms: GNU General Public License, version 2
8 #ifndef __LINUX_MFD_STMPE_H
9 #define __LINUX_MFD_STMPE_H
11 #include <linux/mutex.h>
17 STMPE_BLOCK_GPIO = 1 << 0,
18 STMPE_BLOCK_KEYPAD = 1 << 1,
19 STMPE_BLOCK_TOUCHSCREEN = 1 << 2,
20 STMPE_BLOCK_ADC = 1 << 3,
21 STMPE_BLOCK_PWM = 1 << 4,
22 STMPE_BLOCK_ROTATOR = 1 << 5,
37 * For registers whose locations differ on variants, the correct address is
38 * obtained by indexing stmpe->regs with one of the following.
53 STMPE_IDX_GPAFR_U_MSB,
54 STMPE_IDX_IEGPIOR_LSB,
55 STMPE_IDX_ISGPIOR_LSB,
56 STMPE_IDX_ISGPIOR_MSB,
61 struct stmpe_variant_info;
62 struct stmpe_client_info;
65 * struct stmpe - STMPE MFD structure
66 * @vcc: optional VCC regulator
67 * @vio: optional VIO regulator
68 * @lock: lock protecting I/O operations
69 * @irq_lock: IRQ bus lock
70 * @dev: device, mostly for dev_dbg()
71 * @irq_domain: IRQ domain
72 * @client: client - i2c or spi
73 * @ci: client specific information
74 * @partnum: part number
75 * @variant: the detected STMPE model number
76 * @regs: list of addresses of registers which are at different addresses on
77 * different variants. Indexed by one of STMPE_IDX_*.
78 * @irq: irq number for stmpe
79 * @num_gpios: number of gpios, differs for variants
80 * @ier: cache of IER registers for bus_lock
81 * @oldier: cache of IER registers for bus_lock
82 * @pdata: platform data
85 struct regulator *vcc;
86 struct regulator *vio;
88 struct mutex irq_lock;
90 struct irq_domain *domain;
92 struct stmpe_client_info *ci;
93 enum stmpe_partnum partnum;
94 struct stmpe_variant_info *variant;
101 struct stmpe_platform_data *pdata;
104 extern int stmpe_reg_write(struct stmpe *stmpe, u8 reg, u8 data);
105 extern int stmpe_reg_read(struct stmpe *stmpe, u8 reg);
106 extern int stmpe_block_read(struct stmpe *stmpe, u8 reg, u8 length,
108 extern int stmpe_block_write(struct stmpe *stmpe, u8 reg, u8 length,
110 extern int stmpe_set_bits(struct stmpe *stmpe, u8 reg, u8 mask, u8 val);
111 extern int stmpe_set_altfunc(struct stmpe *stmpe, u32 pins,
112 enum stmpe_block block);
113 extern int stmpe_enable(struct stmpe *stmpe, unsigned int blocks);
114 extern int stmpe_disable(struct stmpe *stmpe, unsigned int blocks);
116 struct matrix_keymap_data;
119 * struct stmpe_keypad_platform_data - STMPE keypad platform data
120 * @keymap_data: key map table and size
121 * @debounce_ms: debounce interval, in ms. Maximum is
122 * %STMPE_KEYPAD_MAX_DEBOUNCE.
123 * @scan_count: number of key scanning cycles to confirm key data.
124 * Maximum is %STMPE_KEYPAD_MAX_SCAN_COUNT.
125 * @no_autorepeat: disable key autorepeat
127 struct stmpe_keypad_platform_data {
128 const struct matrix_keymap_data *keymap_data;
129 unsigned int debounce_ms;
130 unsigned int scan_count;
134 #define STMPE_GPIO_NOREQ_811_TOUCH (0xf0)
137 * struct stmpe_gpio_platform_data - STMPE GPIO platform data
138 * @norequest_mask: bitmask specifying which GPIOs should _not_ be
139 * requestable due to different usage (e.g. touch, keypad)
140 * STMPE_GPIO_NOREQ_* macros can be used here.
141 * @setup: board specific setup callback.
142 * @remove: board specific remove callback
144 struct stmpe_gpio_platform_data {
145 unsigned norequest_mask;
146 void (*setup)(struct stmpe *stmpe, unsigned gpio_base);
147 void (*remove)(struct stmpe *stmpe, unsigned gpio_base);
151 * struct stmpe_ts_platform_data - stmpe811 touch screen controller platform
153 * @sample_time: ADC converstion time in number of clock.
154 * (0 -> 36 clocks, 1 -> 44 clocks, 2 -> 56 clocks, 3 -> 64 clocks,
155 * 4 -> 80 clocks, 5 -> 96 clocks, 6 -> 144 clocks),
157 * @mod_12b: ADC Bit mode (0 -> 10bit ADC, 1 -> 12bit ADC)
158 * @ref_sel: ADC reference source
159 * (0 -> internal reference, 1 -> external reference)
160 * @adc_freq: ADC Clock speed
161 * (0 -> 1.625 MHz, 1 -> 3.25 MHz, 2 || 3 -> 6.5 MHz)
162 * @ave_ctrl: Sample average control
163 * (0 -> 1 sample, 1 -> 2 samples, 2 -> 4 samples, 3 -> 8 samples)
164 * @touch_det_delay: Touch detect interrupt delay
165 * (0 -> 10 us, 1 -> 50 us, 2 -> 100 us, 3 -> 500 us,
166 * 4-> 1 ms, 5 -> 5 ms, 6 -> 10 ms, 7 -> 50 ms)
168 * @settling: Panel driver settling time
169 * (0 -> 10 us, 1 -> 100 us, 2 -> 500 us, 3 -> 1 ms,
170 * 4 -> 5 ms, 5 -> 10 ms, 6 for 50 ms, 7 -> 100 ms)
172 * @fraction_z: Length of the fractional part in z
173 * (fraction_z ([0..7]) = Count of the fractional part)
175 * @i_drive: current limit value of the touchscreen drivers
176 * (0 -> 20 mA typical 35 mA max, 1 -> 50 mA typical 80 mA max)
179 struct stmpe_ts_platform_data {
192 * struct stmpe_platform_data - STMPE platform data
193 * @id: device id to distinguish between multiple STMPEs on the same board
194 * @blocks: bitmask of blocks to enable (use STMPE_BLOCK_*)
195 * @irq_trigger: IRQ trigger to use for the interrupt to the host
196 * @autosleep: bool to enable/disable stmpe autosleep
197 * @autosleep_timeout: inactivity timeout in milliseconds for autosleep
198 * @irq_over_gpio: true if gpio is used to get irq
199 * @irq_gpio: gpio number over which irq will be requested (significant only if
200 * irq_over_gpio is true)
201 * @gpio: GPIO-specific platform data
202 * @keypad: keypad-specific platform data
203 * @ts: touchscreen-specific platform data
205 struct stmpe_platform_data {
208 unsigned int irq_trigger;
212 int autosleep_timeout;
214 struct stmpe_gpio_platform_data *gpio;
215 struct stmpe_keypad_platform_data *keypad;
216 struct stmpe_ts_platform_data *ts;