arch/unicore32/include/asm/gpio.h

   1 /*
   2  * linux/arch/unicore32/include/asm/gpio.h
   3  *
   4  * Code specific to PKUnity SoC and UniCore ISA
   5  *
   6  * Copyright (C) 2001-2010 GUAN Xue-tao
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12
  13 #ifndef __UNICORE_GPIO_H__
  14 #define __UNICORE_GPIO_H__
  15
  16 #include <linux/io.h>
  17 #include <asm/irq.h>
  18 #include <mach/hardware.h>
  19 #include <asm-generic/gpio.h>
  20
  21 #define GPI_OTP_INT             0
  22 #define GPI_PCI_INTA            1
  23 #define GPI_PCI_INTB            2
  24 #define GPI_PCI_INTC            3
  25 #define GPI_PCI_INTD            4
  26 #define GPI_BAT_DET             5
  27 #define GPI_SD_CD               6
  28 #define GPI_SOFF_REQ            7
  29 #define GPI_SD_WP               8
  30 #define GPI_LCD_CASE_OFF        9
  31 #define GPO_WIFI_EN             10
  32 #define GPO_HDD_LED             11
  33 #define GPO_VGA_EN              12
  34 #define GPO_LCD_EN              13
  35 #define GPO_LED_DATA            14
  36 #define GPO_LED_CLK             15
  37 #define GPO_CAM_PWR_EN          16
  38 #define GPO_LCD_VCC_EN          17
  39 #define GPO_SOFT_OFF            18
  40 #define GPO_BT_EN               19
  41 #define GPO_FAN_ON              20
  42 #define GPO_SPKR                21
  43 #define GPO_SET_V1              23
  44 #define GPO_SET_V2              24
  45 #define GPO_CPU_HEALTH          25
  46 #define GPO_LAN_SEL             26
  47
  48 #ifdef CONFIG_PUV3_NB0916
  49 #define GPI_BTN_TOUCH           14
  50 #define GPIO_IN                 0x000043ff /* 1 for input */
  51 #define GPIO_OUT                0x0fffbc00 /* 1 for output */
  52 #endif  /* CONFIG_PUV3_NB0916 */
  53
  54 #ifdef CONFIG_PUV3_SMW0919
  55 #define GPIO_IN                 0x000003ff /* 1 for input */
  56 #define GPIO_OUT                0x0ffffc00 /* 1 for output */
  57 #endif  /* CONFIG_PUV3_SMW0919 */
  58
  59 #ifdef CONFIG_PUV3_DB0913
  60 #define GPIO_IN                 0x000001df /* 1 for input */
  61 #define GPIO_OUT                0x03fee800 /* 1 for output */
  62 #endif  /* CONFIG_PUV3_DB0913 */
  63
  64 #define GPIO_DIR                (~((GPIO_IN) | 0xf0000000))
  65                                 /* 0 input, 1 output */
  66
  67 static inline int gpio_get_value(unsigned gpio)
  68 {
  69         if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX))
  70                 return readl(GPIO_GPLR) & GPIO_GPIO(gpio);
  71         else
  72                 return __gpio_get_value(gpio);
  73 }
  74
  75 static inline void gpio_set_value(unsigned gpio, int value)
  76 {
  77         if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX))
  78                 if (value)
  79                         writel(GPIO_GPIO(gpio), GPIO_GPSR);
  80                 else
  81                         writel(GPIO_GPIO(gpio), GPIO_GPCR);
  82         else
  83                 __gpio_set_value(gpio, value);
  84 }
  85
  86 #define gpio_cansleep   __gpio_cansleep
  87
  88 static inline unsigned gpio_to_irq(unsigned gpio)
  89 {
  90         if ((gpio < IRQ_GPIOHIGH) && (FIELD(1, 1, gpio) & readl(GPIO_GPIR)))
  91                 return IRQ_GPIOLOW0 + gpio;
  92         else
  93                 return IRQ_GPIO0 + gpio;
  94 }
  95
  96 static inline unsigned irq_to_gpio(unsigned irq)
  97 {
  98         if (irq < IRQ_GPIOHIGH)
  99                 return irq - IRQ_GPIOLOW0;
 100         else
 101                 return irq - IRQ_GPIO0;
 102 }
 103
 104 #endif /* __UNICORE_GPIO_H__ */