drivers/mfd/stmpe.h

   1 /*
   2  * Copyright (C) ST-Ericsson SA 2010
   3  *
   4  * License Terms: GNU General Public License, version 2
   5  * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
   6  */
   7
   8 #ifndef __STMPE_H
   9 #define __STMPE_H
  10
  11 #include <linux/device.h>
  12 #include <linux/mfd/core.h>
  13 #include <linux/mfd/stmpe.h>
  14 #include <linux/printk.h>
  15 #include <linux/types.h>
  16
  17 extern const struct dev_pm_ops stmpe_dev_pm_ops;
  18
  19 #ifdef STMPE_DUMP_BYTES
  20 static inline void stmpe_dump_bytes(const char *str, const void *buf,
  21                                     size_t len)
  22 {
  23         print_hex_dump_bytes(str, DUMP_PREFIX_OFFSET, buf, len);
  24 }
  25 #else
  26 static inline void stmpe_dump_bytes(const char *str, const void *buf,
  27                                     size_t len)
  28 {
  29 }
  30 #endif
  31
  32 /**
  33  * struct stmpe_variant_block - information about block
  34  * @cell:       base mfd cell
  35  * @irq:        interrupt number to be added to each IORESOURCE_IRQ
  36  *              in the cell
  37  * @block:      block id; used for identification with platform data and for
  38  *              enable and altfunc callbacks
  39  */
  40 struct stmpe_variant_block {
  41         struct mfd_cell         *cell;
  42         int                     irq;
  43         enum stmpe_block        block;
  44 };
  45
  46 /**
  47  * struct stmpe_variant_info - variant-specific information
  48  * @name:       part name
  49  * @id_val:     content of CHIPID register
  50  * @id_mask:    bits valid in CHIPID register for comparison with id_val
  51  * @num_gpios:  number of GPIOS
  52  * @af_bits:    number of bits used to specify the alternate function
  53  * @regs: variant specific registers.
  54  * @blocks:     list of blocks present on this device
  55  * @num_blocks: number of blocks present on this device
  56  * @num_irqs:   number of internal IRQs available on this device
  57  * @enable:     callback to enable the specified blocks.
  58  *              Called with the I/O lock held.
  59  * @get_altfunc: callback to get the alternate function number for the
  60  *               specific block
  61  * @enable_autosleep: callback to configure autosleep with specified timeout
  62  */
  63 struct stmpe_variant_info {
  64         const char *name;
  65         u16 id_val;
  66         u16 id_mask;
  67         int num_gpios;
  68         int af_bits;
  69         const u8 *regs;
  70         struct stmpe_variant_block *blocks;
  71         int num_blocks;
  72         int num_irqs;
  73         int (*enable)(struct stmpe *stmpe, unsigned int blocks, bool enable);
  74         int (*get_altfunc)(struct stmpe *stmpe, enum stmpe_block block);
  75         int (*enable_autosleep)(struct stmpe *stmpe, int autosleep_timeout);
  76 };
  77
  78 /**
  79  * struct stmpe_client_info - i2c or spi specific routines/info
  80  * @data: client specific data
  81  * @read_byte: read single byte
  82  * @write_byte: write single byte
  83  * @read_block: read block or multiple bytes
  84  * @write_block: write block or multiple bytes
  85  * @init: client init routine, called during probe
  86  */
  87 struct stmpe_client_info {
  88         void *data;
  89         int irq;
  90         void *client;
  91         struct device *dev;
  92         int (*read_byte)(struct stmpe *stmpe, u8 reg);
  93         int (*write_byte)(struct stmpe *stmpe, u8 reg, u8 val);
  94         int (*read_block)(struct stmpe *stmpe, u8 reg, u8 len, u8 *values);
  95         int (*write_block)(struct stmpe *stmpe, u8 reg, u8 len,
  96                         const u8 *values);
  97         void (*init)(struct stmpe *stmpe);
  98 };
  99
 100 int stmpe_probe(struct stmpe_client_info *ci, int partnum);
 101 int stmpe_remove(struct stmpe *stmpe);
 102
 103 #define STMPE_ICR_LSB_HIGH      (1 << 2)
 104 #define STMPE_ICR_LSB_EDGE      (1 << 1)
 105 #define STMPE_ICR_LSB_GIM       (1 << 0)
 106
 107 /*
 108  * STMPE801
 109  */
 110 #define STMPE801_ID                     0x0108
 111 #define STMPE801_NR_INTERNAL_IRQS       1
 112
 113 #define STMPE801_REG_CHIP_ID            0x00
 114 #define STMPE801_REG_VERSION_ID         0x02
 115 #define STMPE801_REG_SYS_CTRL           0x04
 116 #define STMPE801_REG_GPIO_INT_EN        0x08
 117 #define STMPE801_REG_GPIO_INT_STA       0x09
 118 #define STMPE801_REG_GPIO_MP_STA        0x10
 119 #define STMPE801_REG_GPIO_SET_PIN       0x11
 120 #define STMPE801_REG_GPIO_DIR           0x12
 121
 122 #define STMPE801_REG_SYS_CTRL_RESET     (1 << 7)
 123 #define STMPE801_REG_SYS_CTRL_INT_EN    (1 << 2)
 124 #define STMPE801_REG_SYS_CTRL_INT_HI    (1 << 0)
 125
 126 /*
 127  * STMPE811
 128  */
 129
 130 #define STMPE811_IRQ_TOUCH_DET          0
 131 #define STMPE811_IRQ_FIFO_TH            1
 132 #define STMPE811_IRQ_FIFO_OFLOW         2
 133 #define STMPE811_IRQ_FIFO_FULL          3
 134 #define STMPE811_IRQ_FIFO_EMPTY         4
 135 #define STMPE811_IRQ_TEMP_SENS          5
 136 #define STMPE811_IRQ_ADC                6
 137 #define STMPE811_IRQ_GPIOC              7
 138 #define STMPE811_NR_INTERNAL_IRQS       8
 139
 140 #define STMPE811_REG_CHIP_ID            0x00
 141 #define STMPE811_REG_SYS_CTRL2          0x04
 142 #define STMPE811_REG_SPI_CFG            0x08
 143 #define STMPE811_REG_INT_CTRL           0x09
 144 #define STMPE811_REG_INT_EN             0x0A
 145 #define STMPE811_REG_INT_STA            0x0B
 146 #define STMPE811_REG_GPIO_INT_EN        0x0C
 147 #define STMPE811_REG_GPIO_INT_STA       0x0D
 148 #define STMPE811_REG_GPIO_SET_PIN       0x10
 149 #define STMPE811_REG_GPIO_CLR_PIN       0x11
 150 #define STMPE811_REG_GPIO_MP_STA        0x12
 151 #define STMPE811_REG_GPIO_DIR           0x13
 152 #define STMPE811_REG_GPIO_ED            0x14
 153 #define STMPE811_REG_GPIO_RE            0x15
 154 #define STMPE811_REG_GPIO_FE            0x16
 155 #define STMPE811_REG_GPIO_AF            0x17
 156
 157 #define STMPE811_SYS_CTRL2_ADC_OFF      (1 << 0)
 158 #define STMPE811_SYS_CTRL2_TSC_OFF      (1 << 1)
 159 #define STMPE811_SYS_CTRL2_GPIO_OFF     (1 << 2)
 160 #define STMPE811_SYS_CTRL2_TS_OFF       (1 << 3)
 161
 162 /*
 163  * STMPE1601
 164  */
 165
 166 #define STMPE1601_IRQ_GPIOC             8
 167 #define STMPE1601_IRQ_PWM3              7
 168 #define STMPE1601_IRQ_PWM2              6
 169 #define STMPE1601_IRQ_PWM1              5
 170 #define STMPE1601_IRQ_PWM0              4
 171 #define STMPE1601_IRQ_KEYPAD_OVER       2
 172 #define STMPE1601_IRQ_KEYPAD            1
 173 #define STMPE1601_IRQ_WAKEUP            0
 174 #define STMPE1601_NR_INTERNAL_IRQS      9
 175
 176 #define STMPE1601_REG_SYS_CTRL                  0x02
 177 #define STMPE1601_REG_SYS_CTRL2                 0x03
 178 #define STMPE1601_REG_ICR_LSB                   0x11
 179 #define STMPE1601_REG_IER_LSB                   0x13
 180 #define STMPE1601_REG_ISR_MSB                   0x14
 181 #define STMPE1601_REG_CHIP_ID                   0x80
 182 #define STMPE1601_REG_INT_EN_GPIO_MASK_LSB      0x17
 183 #define STMPE1601_REG_INT_STA_GPIO_MSB          0x18
 184 #define STMPE1601_REG_GPIO_MP_LSB               0x87
 185 #define STMPE1601_REG_GPIO_SET_LSB              0x83
 186 #define STMPE1601_REG_GPIO_CLR_LSB              0x85
 187 #define STMPE1601_REG_GPIO_SET_DIR_LSB          0x89
 188 #define STMPE1601_REG_GPIO_ED_MSB               0x8A
 189 #define STMPE1601_REG_GPIO_RE_LSB               0x8D
 190 #define STMPE1601_REG_GPIO_FE_LSB               0x8F
 191 #define STMPE1601_REG_GPIO_AF_U_MSB             0x92
 192
 193 #define STMPE1601_SYS_CTRL_ENABLE_GPIO          (1 << 3)
 194 #define STMPE1601_SYS_CTRL_ENABLE_KPC           (1 << 1)
 195 #define STMPE1601_SYSCON_ENABLE_SPWM            (1 << 0)
 196
 197 /* The 1601/2403 share the same masks */
 198 #define STMPE1601_AUTOSLEEP_TIMEOUT_MASK        (0x7)
 199 #define STPME1601_AUTOSLEEP_ENABLE              (1 << 3)
 200
 201 /*
 202  * STMPE24xx
 203  */
 204
 205 #define STMPE24XX_IRQ_GPIOC             8
 206 #define STMPE24XX_IRQ_PWM2              7
 207 #define STMPE24XX_IRQ_PWM1              6
 208 #define STMPE24XX_IRQ_PWM0              5
 209 #define STMPE24XX_IRQ_ROT_OVER          4
 210 #define STMPE24XX_IRQ_ROT               3
 211 #define STMPE24XX_IRQ_KEYPAD_OVER       2
 212 #define STMPE24XX_IRQ_KEYPAD            1
 213 #define STMPE24XX_IRQ_WAKEUP            0
 214 #define STMPE24XX_NR_INTERNAL_IRQS      9
 215
 216 #define STMPE24XX_REG_SYS_CTRL          0x02
 217 #define STMPE24XX_REG_ICR_LSB           0x11
 218 #define STMPE24XX_REG_IER_LSB           0x13
 219 #define STMPE24XX_REG_ISR_MSB           0x14
 220 #define STMPE24XX_REG_CHIP_ID           0x80
 221 #define STMPE24XX_REG_IEGPIOR_LSB       0x18
 222 #define STMPE24XX_REG_ISGPIOR_MSB       0x19
 223 #define STMPE24XX_REG_GPMR_LSB          0xA5
 224 #define STMPE24XX_REG_GPSR_LSB          0x85
 225 #define STMPE24XX_REG_GPCR_LSB          0x88
 226 #define STMPE24XX_REG_GPDR_LSB          0x8B
 227 #define STMPE24XX_REG_GPEDR_MSB         0x8C
 228 #define STMPE24XX_REG_GPRER_LSB         0x91
 229 #define STMPE24XX_REG_GPFER_LSB         0x94
 230 #define STMPE24XX_REG_GPAFR_U_MSB       0x9B
 231
 232 #define STMPE24XX_SYS_CTRL_ENABLE_GPIO          (1 << 3)
 233 #define STMPE24XX_SYSCON_ENABLE_PWM             (1 << 2)
 234 #define STMPE24XX_SYS_CTRL_ENABLE_KPC           (1 << 1)
 235 #define STMPE24XX_SYSCON_ENABLE_ROT             (1 << 0)
 236
 237 #endif