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140 lines
4.3 KiB
140 lines
4.3 KiB
19 years ago
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/*
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* include/asm-arm/arch-pnx4008/gpio.h
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*
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* PNX4008 GPIO driver - header file
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*
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* Author: Dmitry Chigirev <source@mvista.com>
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*
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* Based on reference code by Iwo Mergler and Z.Tabaaloute from Philips:
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* Copyright (c) 2005 Koninklijke Philips Electronics N.V.
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*
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* 2005 (c) MontaVista Software, Inc. This file is licensed under
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* the terms of the GNU General Public License version 2. This program
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* is licensed "as is" without any warranty of any kind, whether express
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* or implied.
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*/
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#ifndef _PNX4008_GPIO_H_
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#define _PNX4008_GPIO_H_
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/* Block numbers */
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#define GPIO_IN (0)
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#define GPIO_OUT (0x100)
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#define GPIO_BID (0x200)
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#define GPIO_RAM (0x300)
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#define GPIO_MUX (0x400)
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#define GPIO_TYPE_MASK(K) ((K) & 0x700)
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/* INPUT GPIOs */
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/* GPI */
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#define GPI_00 (GPIO_IN | 0)
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#define GPI_01 (GPIO_IN | 1)
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#define GPI_02 (GPIO_IN | 2)
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#define GPI_03 (GPIO_IN | 3)
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#define GPI_04 (GPIO_IN | 4)
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#define GPI_05 (GPIO_IN | 5)
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#define GPI_06 (GPIO_IN | 6)
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#define GPI_07 (GPIO_IN | 7)
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#define GPI_08 (GPIO_IN | 8)
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#define GPI_09 (GPIO_IN | 9)
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#define U1_RX (GPIO_IN | 15)
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#define U2_HTCS (GPIO_IN | 16)
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#define U2_RX (GPIO_IN | 17)
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#define U3_RX (GPIO_IN | 18)
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#define U4_RX (GPIO_IN | 19)
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#define U5_RX (GPIO_IN | 20)
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#define U6_IRRX (GPIO_IN | 21)
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#define U7_HCTS (GPIO_IN | 22)
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#define U7_RX (GPIO_IN | 23)
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/* MISC IN */
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#define SPI1_DATIN (GPIO_IN | 25)
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#define DISP_SYNC (GPIO_IN | 26)
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#define SPI2_DATIN (GPIO_IN | 27)
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#define GPI_11 (GPIO_IN | 28)
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#define GPIO_IN_MASK 0x1eff83ff
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/* OUTPUT GPIOs */
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/* GPO */
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#define GPO_00 (GPIO_OUT | 0)
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#define GPO_01 (GPIO_OUT | 1)
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#define GPO_02 (GPIO_OUT | 2)
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#define GPO_03 (GPIO_OUT | 3)
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#define GPO_04 (GPIO_OUT | 4)
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#define GPO_05 (GPIO_OUT | 5)
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#define GPO_06 (GPIO_OUT | 6)
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#define GPO_07 (GPIO_OUT | 7)
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#define GPO_08 (GPIO_OUT | 8)
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#define GPO_09 (GPIO_OUT | 9)
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#define GPO_10 (GPIO_OUT | 10)
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#define GPO_11 (GPIO_OUT | 11)
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#define GPO_12 (GPIO_OUT | 12)
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#define GPO_13 (GPIO_OUT | 13)
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#define GPO_14 (GPIO_OUT | 14)
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#define GPO_15 (GPIO_OUT | 15)
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#define GPO_16 (GPIO_OUT | 16)
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#define GPO_17 (GPIO_OUT | 17)
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#define GPO_18 (GPIO_OUT | 18)
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#define GPO_19 (GPIO_OUT | 19)
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#define GPO_20 (GPIO_OUT | 20)
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#define GPO_21 (GPIO_OUT | 21)
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#define GPO_22 (GPIO_OUT | 22)
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#define GPO_23 (GPIO_OUT | 23)
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#define GPIO_OUT_MASK 0xffffff
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/* BIDIRECTIONAL GPIOs */
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/* RAM pins */
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#define RAM_D19 (GPIO_RAM | 0)
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#define RAM_D20 (GPIO_RAM | 1)
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#define RAM_D21 (GPIO_RAM | 2)
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#define RAM_D22 (GPIO_RAM | 3)
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#define RAM_D23 (GPIO_RAM | 4)
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#define RAM_D24 (GPIO_RAM | 5)
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#define RAM_D25 (GPIO_RAM | 6)
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#define RAM_D26 (GPIO_RAM | 7)
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#define RAM_D27 (GPIO_RAM | 8)
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#define RAM_D28 (GPIO_RAM | 9)
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#define RAM_D29 (GPIO_RAM | 10)
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#define RAM_D30 (GPIO_RAM | 11)
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#define RAM_D31 (GPIO_RAM | 12)
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#define GPIO_RAM_MASK 0x1fff
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/* I/O pins */
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#define GPIO_00 (GPIO_BID | 25)
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#define GPIO_01 (GPIO_BID | 26)
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#define GPIO_02 (GPIO_BID | 27)
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#define GPIO_03 (GPIO_BID | 28)
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#define GPIO_04 (GPIO_BID | 29)
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#define GPIO_05 (GPIO_BID | 30)
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#define GPIO_BID_MASK 0x7e000000
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/* Non-GPIO multiplexed PIOs. For multiplexing with GPIO, please use GPIO macros */
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#define GPIO_SDRAM_SEL (GPIO_MUX | 3)
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#define GPIO_MUX_MASK 0x8
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/* Extraction/assembly macros */
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#define GPIO_BIT_MASK(K) ((K) & 0x1F)
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#define GPIO_BIT(K) (1 << GPIO_BIT_MASK(K))
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#define GPIO_ISMUX(K) ((GPIO_TYPE_MASK(K) == GPIO_MUX) && (GPIO_BIT(K) & GPIO_MUX_MASK))
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#define GPIO_ISRAM(K) ((GPIO_TYPE_MASK(K) == GPIO_RAM) && (GPIO_BIT(K) & GPIO_RAM_MASK))
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#define GPIO_ISBID(K) ((GPIO_TYPE_MASK(K) == GPIO_BID) && (GPIO_BIT(K) & GPIO_BID_MASK))
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#define GPIO_ISOUT(K) ((GPIO_TYPE_MASK(K) == GPIO_OUT) && (GPIO_BIT(K) & GPIO_OUT_MASK))
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#define GPIO_ISIN(K) ((GPIO_TYPE_MASK(K) == GPIO_IN) && (GPIO_BIT(K) & GPIO_IN_MASK))
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extern int pnx4008_gpio_register_pin(unsigned short pin);
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extern int pnx4008_gpio_unregister_pin(unsigned short pin);
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extern unsigned long pnx4008_gpio_read_pin(unsigned short pin);
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extern int pnx4008_gpio_write_pin(unsigned short pin, int output);
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extern int pnx4008_gpio_set_pin_direction(unsigned short pin, int output);
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extern int pnx4008_gpio_read_pin_direction(unsigned short pin);
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extern int pnx4008_gpio_set_pin_mux(unsigned short pin, int output);
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extern int pnx4008_gpio_read_pin_mux(unsigned short pin);
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#endif /* _PNX4008_GPIO_H_ */
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