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linux-sg2042/arch/arm/mach-pnx4008/include/mach/gpio.h

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/*
* arch/arm/mach-pnx4008/include/mach/gpio.h
*
* PNX4008 GPIO driver - header file
*
* Author: Dmitry Chigirev <source@mvista.com>
*
* Based on reference code by Iwo Mergler and Z.Tabaaloute from Philips:
* Copyright (c) 2005 Koninklijke Philips Electronics N.V.
*
* 2005 (c) MontaVista Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
#ifndef _PNX4008_GPIO_H_
#define _PNX4008_GPIO_H_
/* Block numbers */
#define GPIO_IN (0)
#define GPIO_OUT (0x100)
#define GPIO_BID (0x200)
#define GPIO_RAM (0x300)
#define GPIO_MUX (0x400)
#define GPIO_TYPE_MASK(K) ((K) & 0x700)
/* INPUT GPIOs */
/* GPI */
#define GPI_00 (GPIO_IN | 0)
#define GPI_01 (GPIO_IN | 1)
#define GPI_02 (GPIO_IN | 2)
#define GPI_03 (GPIO_IN | 3)
#define GPI_04 (GPIO_IN | 4)
#define GPI_05 (GPIO_IN | 5)
#define GPI_06 (GPIO_IN | 6)
#define GPI_07 (GPIO_IN | 7)
#define GPI_08 (GPIO_IN | 8)
#define GPI_09 (GPIO_IN | 9)
#define U1_RX (GPIO_IN | 15)
#define U2_HTCS (GPIO_IN | 16)
#define U2_RX (GPIO_IN | 17)
#define U3_RX (GPIO_IN | 18)
#define U4_RX (GPIO_IN | 19)
#define U5_RX (GPIO_IN | 20)
#define U6_IRRX (GPIO_IN | 21)
#define U7_HCTS (GPIO_IN | 22)
#define U7_RX (GPIO_IN | 23)
/* MISC IN */
#define SPI1_DATIN (GPIO_IN | 25)
#define DISP_SYNC (GPIO_IN | 26)
#define SPI2_DATIN (GPIO_IN | 27)
#define GPI_11 (GPIO_IN | 28)
#define GPIO_IN_MASK 0x1eff83ff
/* OUTPUT GPIOs */
/* GPO */
#define GPO_00 (GPIO_OUT | 0)
#define GPO_01 (GPIO_OUT | 1)
#define GPO_02 (GPIO_OUT | 2)
#define GPO_03 (GPIO_OUT | 3)
#define GPO_04 (GPIO_OUT | 4)
#define GPO_05 (GPIO_OUT | 5)
#define GPO_06 (GPIO_OUT | 6)
#define GPO_07 (GPIO_OUT | 7)
#define GPO_08 (GPIO_OUT | 8)
#define GPO_09 (GPIO_OUT | 9)
#define GPO_10 (GPIO_OUT | 10)
#define GPO_11 (GPIO_OUT | 11)
#define GPO_12 (GPIO_OUT | 12)
#define GPO_13 (GPIO_OUT | 13)
#define GPO_14 (GPIO_OUT | 14)
#define GPO_15 (GPIO_OUT | 15)
#define GPO_16 (GPIO_OUT | 16)
#define GPO_17 (GPIO_OUT | 17)
#define GPO_18 (GPIO_OUT | 18)
#define GPO_19 (GPIO_OUT | 19)
#define GPO_20 (GPIO_OUT | 20)
#define GPO_21 (GPIO_OUT | 21)
#define GPO_22 (GPIO_OUT | 22)
#define GPO_23 (GPIO_OUT | 23)
#define GPIO_OUT_MASK 0xffffff
/* BIDIRECTIONAL GPIOs */
/* RAM pins */
#define RAM_D19 (GPIO_RAM | 0)
#define RAM_D20 (GPIO_RAM | 1)
#define RAM_D21 (GPIO_RAM | 2)
#define RAM_D22 (GPIO_RAM | 3)
#define RAM_D23 (GPIO_RAM | 4)
#define RAM_D24 (GPIO_RAM | 5)
#define RAM_D25 (GPIO_RAM | 6)
#define RAM_D26 (GPIO_RAM | 7)
#define RAM_D27 (GPIO_RAM | 8)
#define RAM_D28 (GPIO_RAM | 9)
#define RAM_D29 (GPIO_RAM | 10)
#define RAM_D30 (GPIO_RAM | 11)
#define RAM_D31 (GPIO_RAM | 12)
#define GPIO_RAM_MASK 0x1fff
/* I/O pins */
#define GPIO_00 (GPIO_BID | 25)
#define GPIO_01 (GPIO_BID | 26)
#define GPIO_02 (GPIO_BID | 27)
#define GPIO_03 (GPIO_BID | 28)
#define GPIO_04 (GPIO_BID | 29)
#define GPIO_05 (GPIO_BID | 30)
#define GPIO_BID_MASK 0x7e000000
/* Non-GPIO multiplexed PIOs. For multiplexing with GPIO, please use GPIO macros */
#define GPIO_SDRAM_SEL (GPIO_MUX | 3)
#define GPIO_MUX_MASK 0x8
/* Extraction/assembly macros */
#define GPIO_BIT_MASK(K) ((K) & 0x1F)
#define GPIO_BIT(K) (1 << GPIO_BIT_MASK(K))
#define GPIO_ISMUX(K) ((GPIO_TYPE_MASK(K) == GPIO_MUX) && (GPIO_BIT(K) & GPIO_MUX_MASK))
#define GPIO_ISRAM(K) ((GPIO_TYPE_MASK(K) == GPIO_RAM) && (GPIO_BIT(K) & GPIO_RAM_MASK))
#define GPIO_ISBID(K) ((GPIO_TYPE_MASK(K) == GPIO_BID) && (GPIO_BIT(K) & GPIO_BID_MASK))
#define GPIO_ISOUT(K) ((GPIO_TYPE_MASK(K) == GPIO_OUT) && (GPIO_BIT(K) & GPIO_OUT_MASK))
#define GPIO_ISIN(K) ((GPIO_TYPE_MASK(K) == GPIO_IN) && (GPIO_BIT(K) & GPIO_IN_MASK))
/* Start Enable Pin Interrupts - table 58 page 66 */
#define SE_PIN_BASE_INT 32
#define SE_U7_RX_INT 63
#define SE_U7_HCTS_INT 62
#define SE_BT_CLKREQ_INT 61
#define SE_U6_IRRX_INT 60
/*59 unused*/
#define SE_U5_RX_INT 58
#define SE_GPI_11_INT 57
#define SE_U3_RX_INT 56
#define SE_U2_HCTS_INT 55
#define SE_U2_RX_INT 54
#define SE_U1_RX_INT 53
#define SE_DISP_SYNC_INT 52
/*51 unused*/
#define SE_SDIO_INT_N 50
#define SE_MSDIO_START_INT 49
#define SE_GPI_06_INT 48
#define SE_GPI_05_INT 47
#define SE_GPI_04_INT 46
#define SE_GPI_03_INT 45
#define SE_GPI_02_INT 44
#define SE_GPI_01_INT 43
#define SE_GPI_00_INT 42
#define SE_SYSCLKEN_PIN_INT 41
#define SE_SPI1_DATAIN_INT 40
#define SE_GPI_07_INT 39
#define SE_SPI2_DATAIN_INT 38
#define SE_GPI_10_INT 37
#define SE_GPI_09_INT 36
#define SE_GPI_08_INT 35
/*34-32 unused*/
/* Start Enable Internal Interrupts - table 57 page 65 */
#define SE_INT_BASE_INT 0
#define SE_TS_IRQ 31
#define SE_TS_P_INT 30
#define SE_TS_AUX_INT 29
/*27-28 unused*/
#define SE_USB_AHB_NEED_CLK_INT 26
#define SE_MSTIMER_INT 25
#define SE_RTC_INT 24
#define SE_USB_NEED_CLK_INT 23
#define SE_USB_INT 22
#define SE_USB_I2C_INT 21
#define SE_USB_OTG_TIMER_INT 20
#define SE_USB_OTG_ATX_INT_N 19
/*18 unused*/
#define SE_DSP_GPIO4_INT 17
#define SE_KEY_IRQ 16
#define SE_DSP_SLAVEPORT_INT 15
#define SE_DSP_GPIO1_INT 14
#define SE_DSP_GPIO0_INT 13
#define SE_DSP_AHB_INT 12
/*11-6 unused*/
#define SE_GPIO_05_INT 5
#define SE_GPIO_04_INT 4
#define SE_GPIO_03_INT 3
#define SE_GPIO_02_INT 2
#define SE_GPIO_01_INT 1
#define SE_GPIO_00_INT 0
#define START_INT_REG_BIT(irq) (1<<((irq)&0x1F))
#define START_INT_ER_REG(irq) IO_ADDRESS((PNX4008_PWRMAN_BASE + 0x20 + (((irq)&(0x1<<5))>>1)))
#define START_INT_RSR_REG(irq) IO_ADDRESS((PNX4008_PWRMAN_BASE + 0x24 + (((irq)&(0x1<<5))>>1)))
#define START_INT_SR_REG(irq) IO_ADDRESS((PNX4008_PWRMAN_BASE + 0x28 + (((irq)&(0x1<<5))>>1)))
#define START_INT_APR_REG(irq) IO_ADDRESS((PNX4008_PWRMAN_BASE + 0x2C + (((irq)&(0x1<<5))>>1)))
extern int pnx4008_gpio_register_pin(unsigned short pin);
extern int pnx4008_gpio_unregister_pin(unsigned short pin);
extern unsigned long pnx4008_gpio_read_pin(unsigned short pin);
extern int pnx4008_gpio_write_pin(unsigned short pin, int output);
extern int pnx4008_gpio_set_pin_direction(unsigned short pin, int output);
extern int pnx4008_gpio_read_pin_direction(unsigned short pin);
extern int pnx4008_gpio_set_pin_mux(unsigned short pin, int output);
extern int pnx4008_gpio_read_pin_mux(unsigned short pin);
static inline void start_int_umask(u8 irq)
{
__raw_writel(__raw_readl(START_INT_ER_REG(irq)) |
START_INT_REG_BIT(irq), START_INT_ER_REG(irq));
}
static inline void start_int_mask(u8 irq)
{
__raw_writel(__raw_readl(START_INT_ER_REG(irq)) &
~START_INT_REG_BIT(irq), START_INT_ER_REG(irq));
}
static inline void start_int_ack(u8 irq)
{
__raw_writel(START_INT_REG_BIT(irq), START_INT_RSR_REG(irq));
}
static inline void start_int_set_falling_edge(u8 irq)
{
__raw_writel(__raw_readl(START_INT_APR_REG(irq)) &
~START_INT_REG_BIT(irq), START_INT_APR_REG(irq));
}
static inline void start_int_set_rising_edge(u8 irq)
{
__raw_writel(__raw_readl(START_INT_APR_REG(irq)) |
START_INT_REG_BIT(irq), START_INT_APR_REG(irq));
}
#endif /* _PNX4008_GPIO_H_ */
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