d92ef29a6f
The current h8300 GPIO implementation doesn't provide the standard GPIO API, and in fact provides only direction control rather than normal GPIO functionality. Currently this is only used by the platform interrupt implementation rather than by a range of drivers so in preparation for moving over to gpiolib move the header out of the way of the gpiolib header, allowing a default GPIO implementation to be provided. For actual use of these GPIOs with gpiolib a real driver would still need to be written but there appears to be no current need for this. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
#ifndef _H8300_GPIO_H
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#define _H8300_GPIO_H
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#define H8300_GPIO_P1 0
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#define H8300_GPIO_P2 1
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#define H8300_GPIO_P3 2
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#define H8300_GPIO_P4 3
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#define H8300_GPIO_P5 4
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#define H8300_GPIO_P6 5
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#define H8300_GPIO_P7 6
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#define H8300_GPIO_P8 7
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#define H8300_GPIO_P9 8
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#define H8300_GPIO_PA 9
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#define H8300_GPIO_PB 10
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#define H8300_GPIO_PC 11
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#define H8300_GPIO_PD 12
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#define H8300_GPIO_PE 13
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#define H8300_GPIO_PF 14
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#define H8300_GPIO_PG 15
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#define H8300_GPIO_PH 16
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#define H8300_GPIO_B7 0x80
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#define H8300_GPIO_B6 0x40
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#define H8300_GPIO_B5 0x20
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#define H8300_GPIO_B4 0x10
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#define H8300_GPIO_B3 0x08
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#define H8300_GPIO_B2 0x04
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#define H8300_GPIO_B1 0x02
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#define H8300_GPIO_B0 0x01
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#define H8300_GPIO_INPUT 0
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#define H8300_GPIO_OUTPUT 1
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#define H8300_GPIO_RESERVE(port, bits) \
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h8300_reserved_gpio(port, bits)
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#define H8300_GPIO_FREE(port, bits) \
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h8300_free_gpio(port, bits)
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#define H8300_GPIO_DDR(port, bit, dir) \
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h8300_set_gpio_dir(((port) << 8) | (bit), dir)
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#define H8300_GPIO_GETDIR(port, bit) \
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h8300_get_gpio_dir(((port) << 8) | (bit))
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extern int h8300_reserved_gpio(int port, int bits);
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extern int h8300_free_gpio(int port, int bits);
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extern int h8300_set_gpio_dir(int port_bit, int dir);
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extern int h8300_get_gpio_dir(int port_bit);
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extern int h8300_init_gpio(void);
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#endif
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