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da34aae5fb
The gpio spec for bf54x and bf60x differ a lot from the old gpio driver for bf5xx. A lot of machine macros are used to accomodate both code in one gpio driver. This patch split the old gpio driver and move new gpio2 support to the generic gpio driver folder. - To enable gpio2 driver, macro CONFIG_ADI_GPIO2 should be defined in the board's config header file. - The gpio2 driver supports bf54x, bf60x and future ADI processors, while the older gpio driver supports bf50x, bf51x, bf52x, bf53x and bf561. - All blackfin specific gpio function names are replaced by the generic gpio APIs. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
214 lines
4.9 KiB
C
214 lines
4.9 KiB
C
/*
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* Copyright 2006-2009 Analog Devices Inc.
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*
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* Licensed under the GPL-2 or later.
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*/
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#ifndef __ARCH_BLACKFIN_GPIO_H__
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#define __ARCH_BLACKFIN_GPIO_H__
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#include <asm-generic/gpio.h>
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#define gpio_bank(x) ((x) >> 4)
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#define gpio_bit(x) (1<<((x) & 0xF))
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#define gpio_sub_n(x) ((x) & 0xF)
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#define GPIO_BANKSIZE 16
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#define GPIO_BANK_NUM DIV_ROUND_UP(MAX_BLACKFIN_GPIOS, GPIO_BANKSIZE)
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#define GPIO_0 0
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#define GPIO_1 1
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#define GPIO_2 2
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#define GPIO_3 3
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#define GPIO_4 4
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#define GPIO_5 5
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#define GPIO_6 6
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#define GPIO_7 7
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#define GPIO_8 8
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#define GPIO_9 9
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#define GPIO_10 10
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#define GPIO_11 11
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#define GPIO_12 12
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#define GPIO_13 13
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#define GPIO_14 14
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#define GPIO_15 15
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#define GPIO_16 16
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#define GPIO_17 17
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#define GPIO_18 18
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#define GPIO_19 19
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#define GPIO_20 20
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#define GPIO_21 21
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#define GPIO_22 22
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#define GPIO_23 23
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#define GPIO_24 24
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#define GPIO_25 25
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#define GPIO_26 26
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#define GPIO_27 27
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#define GPIO_28 28
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#define GPIO_29 29
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#define GPIO_30 30
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#define GPIO_31 31
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#define GPIO_32 32
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#define GPIO_33 33
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#define GPIO_34 34
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#define GPIO_35 35
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#define GPIO_36 36
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#define GPIO_37 37
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#define GPIO_38 38
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#define GPIO_39 39
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#define GPIO_40 40
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#define GPIO_41 41
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#define GPIO_42 42
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#define GPIO_43 43
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#define GPIO_44 44
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#define GPIO_45 45
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#define GPIO_46 46
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#define GPIO_47 47
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#define PERIPHERAL_USAGE 1
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#define GPIO_USAGE 0
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#define MAX_GPIOS MAX_BLACKFIN_GPIOS
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#ifndef __ASSEMBLY__
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#ifdef CONFIG_ADI_GPIO1
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void set_gpio_dir(unsigned, unsigned short);
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void set_gpio_inen(unsigned, unsigned short);
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void set_gpio_polar(unsigned, unsigned short);
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void set_gpio_edge(unsigned, unsigned short);
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void set_gpio_both(unsigned, unsigned short);
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void set_gpio_data(unsigned, unsigned short);
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void set_gpio_maska(unsigned, unsigned short);
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void set_gpio_maskb(unsigned, unsigned short);
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void set_gpio_toggle(unsigned);
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void set_gpiop_dir(unsigned, unsigned short);
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void set_gpiop_inen(unsigned, unsigned short);
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void set_gpiop_polar(unsigned, unsigned short);
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void set_gpiop_edge(unsigned, unsigned short);
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void set_gpiop_both(unsigned, unsigned short);
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void set_gpiop_data(unsigned, unsigned short);
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void set_gpiop_maska(unsigned, unsigned short);
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void set_gpiop_maskb(unsigned, unsigned short);
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unsigned short get_gpio_dir(unsigned);
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unsigned short get_gpio_inen(unsigned);
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unsigned short get_gpio_polar(unsigned);
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unsigned short get_gpio_edge(unsigned);
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unsigned short get_gpio_both(unsigned);
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unsigned short get_gpio_maska(unsigned);
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unsigned short get_gpio_maskb(unsigned);
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unsigned short get_gpio_data(unsigned);
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unsigned short get_gpiop_dir(unsigned);
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unsigned short get_gpiop_inen(unsigned);
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unsigned short get_gpiop_polar(unsigned);
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unsigned short get_gpiop_edge(unsigned);
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unsigned short get_gpiop_both(unsigned);
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unsigned short get_gpiop_maska(unsigned);
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unsigned short get_gpiop_maskb(unsigned);
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unsigned short get_gpiop_data(unsigned);
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struct gpio_port_t {
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unsigned short data;
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unsigned short dummy1;
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unsigned short data_clear;
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unsigned short dummy2;
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unsigned short data_set;
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unsigned short dummy3;
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unsigned short toggle;
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unsigned short dummy4;
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unsigned short maska;
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unsigned short dummy5;
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unsigned short maska_clear;
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unsigned short dummy6;
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unsigned short maska_set;
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unsigned short dummy7;
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unsigned short maska_toggle;
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unsigned short dummy8;
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unsigned short maskb;
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unsigned short dummy9;
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unsigned short maskb_clear;
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unsigned short dummy10;
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unsigned short maskb_set;
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unsigned short dummy11;
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unsigned short maskb_toggle;
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unsigned short dummy12;
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unsigned short dir;
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unsigned short dummy13;
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unsigned short polar;
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unsigned short dummy14;
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unsigned short edge;
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unsigned short dummy15;
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unsigned short both;
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unsigned short dummy16;
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unsigned short inen;
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};
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#endif
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#ifdef ADI_SPECIAL_GPIO_BANKS
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void special_gpio_free(unsigned gpio);
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int special_gpio_request(unsigned gpio, const char *label);
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#endif
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void gpio_labels(void);
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static inline int gpio_is_valid(int number)
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{
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return number >= 0 && number < MAX_GPIOS;
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}
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#include <linux/ctype.h>
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static inline int name_to_gpio(const char *name)
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{
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int port_base;
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if (tolower(*name) == 'p') {
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++name;
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switch (tolower(*name)) {
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#ifdef GPIO_PA0
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case 'a': port_base = GPIO_PA0; break;
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#endif
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#ifdef GPIO_PB0
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case 'b': port_base = GPIO_PB0; break;
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#endif
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#ifdef GPIO_PC0
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case 'c': port_base = GPIO_PC0; break;
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#endif
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#ifdef GPIO_PD0
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case 'd': port_base = GPIO_PD0; break;
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#endif
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#ifdef GPIO_PE0
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case 'e': port_base = GPIO_PE0; break;
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#endif
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#ifdef GPIO_PF0
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case 'f': port_base = GPIO_PF0; break;
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#endif
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#ifdef GPIO_PG0
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case 'g': port_base = GPIO_PG0; break;
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#endif
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#ifdef GPIO_PH0
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case 'h': port_base = GPIO_PH0; break;
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#endif
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#ifdef GPIO_PI0
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case 'i': port_base = GPIO_PI0; break;
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#endif
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#ifdef GPIO_PJ
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case 'j': port_base = GPIO_PJ0; break;
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#endif
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default: return -1;
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}
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++name;
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} else
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port_base = 0;
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return port_base + simple_strtoul(name, NULL, 10);
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}
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#define name_to_gpio(n) name_to_gpio(n)
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#define gpio_status() gpio_labels()
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_BLACKFIN_GPIO_H__ */
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