release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-pnx4008/include/mach/gpio.h

   1 /*
   2  * arch/arm/mach-pnx4008/include/mach/gpio.h
   3  *
   4  * PNX4008 GPIO driver - header file
   5  *
   6  * Author: Dmitry Chigirev <source@mvista.com>
   7  *
   8  * Based on reference code by Iwo Mergler and Z.Tabaaloute from Philips:
   9  * Copyright (c) 2005 Koninklijke Philips Electronics N.V.
  10  *
  11  * 2005 (c) MontaVista Software, Inc. This file is licensed under
  12  * the terms of the GNU General Public License version 2. This program
  13  * is licensed "as is" without any warranty of any kind, whether express
  14  * or implied.
  15  */
  16
  17 #ifndef _PNX4008_GPIO_H_
  18 #define _PNX4008_GPIO_H_
  19
  20
  21 /* Block numbers */
  22 #define GPIO_IN         (0)
  23 #define GPIO_OUT                (0x100)
  24 #define GPIO_BID                (0x200)
  25 #define GPIO_RAM                (0x300)
  26 #define GPIO_MUX                (0x400)
  27
  28 #define GPIO_TYPE_MASK(K) ((K) & 0x700)
  29
  30 /* INPUT GPIOs */
  31 /* GPI */
  32 #define GPI_00          (GPIO_IN | 0)
  33 #define GPI_01          (GPIO_IN | 1)
  34 #define GPI_02          (GPIO_IN | 2)
  35 #define GPI_03          (GPIO_IN | 3)
  36 #define GPI_04          (GPIO_IN | 4)
  37 #define GPI_05          (GPIO_IN | 5)
  38 #define GPI_06          (GPIO_IN | 6)
  39 #define GPI_07          (GPIO_IN | 7)
  40 #define GPI_08          (GPIO_IN | 8)
  41 #define GPI_09          (GPIO_IN | 9)
  42 #define U1_RX           (GPIO_IN | 15)
  43 #define U2_HTCS         (GPIO_IN | 16)
  44 #define U2_RX           (GPIO_IN | 17)
  45 #define U3_RX           (GPIO_IN | 18)
  46 #define U4_RX           (GPIO_IN | 19)
  47 #define U5_RX           (GPIO_IN | 20)
  48 #define U6_IRRX         (GPIO_IN | 21)
  49 #define U7_HCTS         (GPIO_IN | 22)
  50 #define U7_RX           (GPIO_IN | 23)
  51 /* MISC IN */
  52 #define SPI1_DATIN      (GPIO_IN | 25)
  53 #define DISP_SYNC       (GPIO_IN | 26)
  54 #define SPI2_DATIN      (GPIO_IN | 27)
  55 #define GPI_11          (GPIO_IN | 28)
  56
  57 #define GPIO_IN_MASK   0x1eff83ff
  58
  59 /* OUTPUT GPIOs */
  60 /* GPO */
  61 #define GPO_00          (GPIO_OUT | 0)
  62 #define GPO_01          (GPIO_OUT | 1)
  63 #define GPO_02          (GPIO_OUT | 2)
  64 #define GPO_03          (GPIO_OUT | 3)
  65 #define GPO_04          (GPIO_OUT | 4)
  66 #define GPO_05          (GPIO_OUT | 5)
  67 #define GPO_06          (GPIO_OUT | 6)
  68 #define GPO_07          (GPIO_OUT | 7)
  69 #define GPO_08          (GPIO_OUT | 8)
  70 #define GPO_09          (GPIO_OUT | 9)
  71 #define GPO_10          (GPIO_OUT | 10)
  72 #define GPO_11          (GPIO_OUT | 11)
  73 #define GPO_12          (GPIO_OUT | 12)
  74 #define GPO_13          (GPIO_OUT | 13)
  75 #define GPO_14          (GPIO_OUT | 14)
  76 #define GPO_15          (GPIO_OUT | 15)
  77 #define GPO_16          (GPIO_OUT | 16)
  78 #define GPO_17          (GPIO_OUT | 17)
  79 #define GPO_18          (GPIO_OUT | 18)
  80 #define GPO_19          (GPIO_OUT | 19)
  81 #define GPO_20          (GPIO_OUT | 20)
  82 #define GPO_21          (GPIO_OUT | 21)
  83 #define GPO_22          (GPIO_OUT | 22)
  84 #define GPO_23          (GPIO_OUT | 23)
  85
  86 #define GPIO_OUT_MASK   0xffffff
  87
  88 /* BIDIRECTIONAL GPIOs */
  89 /* RAM pins */
  90 #define RAM_D19         (GPIO_RAM | 0)
  91 #define RAM_D20         (GPIO_RAM | 1)
  92 #define RAM_D21         (GPIO_RAM | 2)
  93 #define RAM_D22         (GPIO_RAM | 3)
  94 #define RAM_D23         (GPIO_RAM | 4)
  95 #define RAM_D24         (GPIO_RAM | 5)
  96 #define RAM_D25         (GPIO_RAM | 6)
  97 #define RAM_D26         (GPIO_RAM | 7)
  98 #define RAM_D27         (GPIO_RAM | 8)
  99 #define RAM_D28         (GPIO_RAM | 9)
 100 #define RAM_D29         (GPIO_RAM | 10)
 101 #define RAM_D30         (GPIO_RAM | 11)
 102 #define RAM_D31         (GPIO_RAM | 12)
 103
 104 #define GPIO_RAM_MASK   0x1fff
 105
 106 /* I/O pins */
 107 #define GPIO_00         (GPIO_BID | 25)
 108 #define GPIO_01         (GPIO_BID | 26)
 109 #define GPIO_02         (GPIO_BID | 27)
 110 #define GPIO_03         (GPIO_BID | 28)
 111 #define GPIO_04         (GPIO_BID | 29)
 112 #define GPIO_05         (GPIO_BID | 30)
 113
 114 #define GPIO_BID_MASK   0x7e000000
 115
 116 /* Non-GPIO multiplexed PIOs. For multiplexing with GPIO, please use GPIO macros */
 117 #define GPIO_SDRAM_SEL  (GPIO_MUX | 3)
 118
 119 #define GPIO_MUX_MASK   0x8
 120
 121 /* Extraction/assembly macros */
 122 #define GPIO_BIT_MASK(K) ((K) & 0x1F)
 123 #define GPIO_BIT(K) (1 << GPIO_BIT_MASK(K))
 124 #define GPIO_ISMUX(K) ((GPIO_TYPE_MASK(K) == GPIO_MUX) && (GPIO_BIT(K) & GPIO_MUX_MASK))
 125 #define GPIO_ISRAM(K) ((GPIO_TYPE_MASK(K) == GPIO_RAM) && (GPIO_BIT(K) & GPIO_RAM_MASK))
 126 #define GPIO_ISBID(K) ((GPIO_TYPE_MASK(K) == GPIO_BID) && (GPIO_BIT(K) & GPIO_BID_MASK))
 127 #define GPIO_ISOUT(K) ((GPIO_TYPE_MASK(K) == GPIO_OUT) && (GPIO_BIT(K) & GPIO_OUT_MASK))
 128 #define GPIO_ISIN(K)  ((GPIO_TYPE_MASK(K) == GPIO_IN) && (GPIO_BIT(K) & GPIO_IN_MASK))
 129
 130 /* Start Enable Pin Interrupts - table 58 page 66 */
 131
 132 #define SE_PIN_BASE_INT   32
 133
 134 #define SE_U7_RX_INT            63
 135 #define SE_U7_HCTS_INT          62
 136 #define SE_BT_CLKREQ_INT        61
 137 #define SE_U6_IRRX_INT          60
 138 /*59 unused*/
 139 #define SE_U5_RX_INT            58
 140 #define SE_GPI_11_INT           57
 141 #define SE_U3_RX_INT            56
 142 #define SE_U2_HCTS_INT          55
 143 #define SE_U2_RX_INT            54
 144 #define SE_U1_RX_INT            53
 145 #define SE_DISP_SYNC_INT        52
 146 /*51 unused*/
 147 #define SE_SDIO_INT_N           50
 148 #define SE_MSDIO_START_INT      49
 149 #define SE_GPI_06_INT           48
 150 #define SE_GPI_05_INT           47
 151 #define SE_GPI_04_INT           46
 152 #define SE_GPI_03_INT           45
 153 #define SE_GPI_02_INT           44
 154 #define SE_GPI_01_INT           43
 155 #define SE_GPI_00_INT           42
 156 #define SE_SYSCLKEN_PIN_INT     41
 157 #define SE_SPI1_DATAIN_INT      40
 158 #define SE_GPI_07_INT           39
 159 #define SE_SPI2_DATAIN_INT      38
 160 #define SE_GPI_10_INT           37
 161 #define SE_GPI_09_INT           36
 162 #define SE_GPI_08_INT           35
 163 /*34-32 unused*/
 164
 165 /* Start Enable Internal Interrupts - table 57 page 65 */
 166
 167 #define SE_INT_BASE_INT   0
 168
 169 #define SE_TS_IRQ               31
 170 #define SE_TS_P_INT             30
 171 #define SE_TS_AUX_INT           29
 172 /*27-28 unused*/
 173 #define SE_USB_AHB_NEED_CLK_INT 26
 174 #define SE_MSTIMER_INT          25
 175 #define SE_RTC_INT              24
 176 #define SE_USB_NEED_CLK_INT     23
 177 #define SE_USB_INT              22
 178 #define SE_USB_I2C_INT          21
 179 #define SE_USB_OTG_TIMER_INT    20
 180 #define SE_USB_OTG_ATX_INT_N    19
 181 /*18 unused*/
 182 #define SE_DSP_GPIO4_INT        17
 183 #define SE_KEY_IRQ              16
 184 #define SE_DSP_SLAVEPORT_INT    15
 185 #define SE_DSP_GPIO1_INT        14
 186 #define SE_DSP_GPIO0_INT        13
 187 #define SE_DSP_AHB_INT          12
 188 /*11-6 unused*/
 189 #define SE_GPIO_05_INT          5
 190 #define SE_GPIO_04_INT          4
 191 #define SE_GPIO_03_INT          3
 192 #define SE_GPIO_02_INT          2
 193 #define SE_GPIO_01_INT          1
 194 #define SE_GPIO_00_INT          0
 195
 196 #define START_INT_REG_BIT(irq) (1<<((irq)&0x1F))
 197
 198 #define START_INT_ER_REG(irq)     IO_ADDRESS((PNX4008_PWRMAN_BASE + 0x20 + (((irq)&(0x1<<5))>>1)))
 199 #define START_INT_RSR_REG(irq)    IO_ADDRESS((PNX4008_PWRMAN_BASE + 0x24 + (((irq)&(0x1<<5))>>1)))
 200 #define START_INT_SR_REG(irq)     IO_ADDRESS((PNX4008_PWRMAN_BASE + 0x28 + (((irq)&(0x1<<5))>>1)))
 201 #define START_INT_APR_REG(irq)    IO_ADDRESS((PNX4008_PWRMAN_BASE + 0x2C + (((irq)&(0x1<<5))>>1)))
 202
 203 extern int pnx4008_gpio_register_pin(unsigned short pin);
 204 extern int pnx4008_gpio_unregister_pin(unsigned short pin);
 205 extern unsigned long pnx4008_gpio_read_pin(unsigned short pin);
 206 extern int pnx4008_gpio_write_pin(unsigned short pin, int output);
 207 extern int pnx4008_gpio_set_pin_direction(unsigned short pin, int output);
 208 extern int pnx4008_gpio_read_pin_direction(unsigned short pin);
 209 extern int pnx4008_gpio_set_pin_mux(unsigned short pin, int output);
 210 extern int pnx4008_gpio_read_pin_mux(unsigned short pin);
 211
 212 static inline void start_int_umask(u8 irq)
 213 {
 214         __raw_writel(__raw_readl(START_INT_ER_REG(irq)) |
 215                      START_INT_REG_BIT(irq), START_INT_ER_REG(irq));
 216 }
 217
 218 static inline void start_int_mask(u8 irq)
 219 {
 220         __raw_writel(__raw_readl(START_INT_ER_REG(irq)) &
 221                      ~START_INT_REG_BIT(irq), START_INT_ER_REG(irq));
 222 }
 223
 224 static inline void start_int_ack(u8 irq)
 225 {
 226         __raw_writel(START_INT_REG_BIT(irq), START_INT_RSR_REG(irq));
 227 }
 228
 229 static inline void start_int_set_falling_edge(u8 irq)
 230 {
 231         __raw_writel(__raw_readl(START_INT_APR_REG(irq)) &
 232                      ~START_INT_REG_BIT(irq), START_INT_APR_REG(irq));
 233 }
 234
 235 static inline void start_int_set_rising_edge(u8 irq)
 236 {
 237         __raw_writel(__raw_readl(START_INT_APR_REG(irq)) |
 238                      START_INT_REG_BIT(irq), START_INT_APR_REG(irq));
 239 }
 240
 241 #endif                          /* _PNX4008_GPIO_H_ */