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a2c8cfef6a
- Add anomaly workaround for bfin_gpio_reset_spi0_ssel1 - Fix style - Update copyright - Remove BUG_ON checks for functions intended to be used only by arch support. GPIO users should only access using the generic GPIO API - Make all GPIO identifier unsigned int Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
459 lines
11 KiB
C
459 lines
11 KiB
C
/*
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* File: arch/blackfin/kernel/bfin_gpio.h
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* Based on:
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* Author: Michael Hennerich (hennerich@blackfin.uclinux.org)
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*
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* Created:
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* Description:
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*
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* Modified:
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* Copyright 2004-2008 Analog Devices Inc.
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*
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* Bugs: Enter bugs at http://blackfin.uclinux.org/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see the file COPYING, or write
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* to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* Number BF537/6/4 BF561 BF533/2/1
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* BF527/5/2
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*
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* GPIO_0 PF0 PF0 PF0
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* GPIO_1 PF1 PF1 PF1
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* GPIO_2 PF2 PF2 PF2
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* GPIO_3 PF3 PF3 PF3
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* GPIO_4 PF4 PF4 PF4
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* GPIO_5 PF5 PF5 PF5
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* GPIO_6 PF6 PF6 PF6
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* GPIO_7 PF7 PF7 PF7
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* GPIO_8 PF8 PF8 PF8
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* GPIO_9 PF9 PF9 PF9
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* GPIO_10 PF10 PF10 PF10
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* GPIO_11 PF11 PF11 PF11
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* GPIO_12 PF12 PF12 PF12
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* GPIO_13 PF13 PF13 PF13
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* GPIO_14 PF14 PF14 PF14
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* GPIO_15 PF15 PF15 PF15
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* GPIO_16 PG0 PF16
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* GPIO_17 PG1 PF17
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* GPIO_18 PG2 PF18
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* GPIO_19 PG3 PF19
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* GPIO_20 PG4 PF20
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* GPIO_21 PG5 PF21
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* GPIO_22 PG6 PF22
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* GPIO_23 PG7 PF23
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* GPIO_24 PG8 PF24
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* GPIO_25 PG9 PF25
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* GPIO_26 PG10 PF26
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* GPIO_27 PG11 PF27
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* GPIO_28 PG12 PF28
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* GPIO_29 PG13 PF29
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* GPIO_30 PG14 PF30
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* GPIO_31 PG15 PF31
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* GPIO_32 PH0 PF32
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* GPIO_33 PH1 PF33
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* GPIO_34 PH2 PF34
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* GPIO_35 PH3 PF35
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* GPIO_36 PH4 PF36
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* GPIO_37 PH5 PF37
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* GPIO_38 PH6 PF38
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* GPIO_39 PH7 PF39
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* GPIO_40 PH8 PF40
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* GPIO_41 PH9 PF41
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* GPIO_42 PH10 PF42
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* GPIO_43 PH11 PF43
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* GPIO_44 PH12 PF44
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* GPIO_45 PH13 PF45
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* GPIO_46 PH14 PF46
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* GPIO_47 PH15 PF47
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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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#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_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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#ifdef BF533_FAMILY
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#define MAX_BLACKFIN_GPIOS 16
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#define GPIO_PF0 0
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#define GPIO_PF1 1
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#define GPIO_PF2 2
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#define GPIO_PF3 3
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#define GPIO_PF4 4
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#define GPIO_PF5 5
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#define GPIO_PF6 6
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#define GPIO_PF7 7
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#define GPIO_PF8 8
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#define GPIO_PF9 9
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#define GPIO_PF10 10
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#define GPIO_PF11 11
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#define GPIO_PF12 12
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#define GPIO_PF13 13
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#define GPIO_PF14 14
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#define GPIO_PF15 15
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#endif
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#if defined(BF527_FAMILY) || defined(BF537_FAMILY)
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#define MAX_BLACKFIN_GPIOS 48
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#define GPIO_PF0 0
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#define GPIO_PF1 1
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#define GPIO_PF2 2
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#define GPIO_PF3 3
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#define GPIO_PF4 4
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#define GPIO_PF5 5
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#define GPIO_PF6 6
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#define GPIO_PF7 7
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#define GPIO_PF8 8
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#define GPIO_PF9 9
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#define GPIO_PF10 10
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#define GPIO_PF11 11
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#define GPIO_PF12 12
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#define GPIO_PF13 13
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#define GPIO_PF14 14
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#define GPIO_PF15 15
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#define GPIO_PG0 16
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#define GPIO_PG1 17
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#define GPIO_PG2 18
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#define GPIO_PG3 19
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#define GPIO_PG4 20
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#define GPIO_PG5 21
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#define GPIO_PG6 22
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#define GPIO_PG7 23
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#define GPIO_PG8 24
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#define GPIO_PG9 25
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#define GPIO_PG10 26
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#define GPIO_PG11 27
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#define GPIO_PG12 28
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#define GPIO_PG13 29
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#define GPIO_PG14 30
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#define GPIO_PG15 31
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#define GPIO_PH0 32
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#define GPIO_PH1 33
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#define GPIO_PH2 34
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#define GPIO_PH3 35
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#define GPIO_PH4 36
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#define GPIO_PH5 37
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#define GPIO_PH6 38
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#define GPIO_PH7 39
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#define GPIO_PH8 40
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#define GPIO_PH9 41
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#define GPIO_PH10 42
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#define GPIO_PH11 43
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#define GPIO_PH12 44
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#define GPIO_PH13 45
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#define GPIO_PH14 46
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#define GPIO_PH15 47
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#define PORT_F GPIO_PF0
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#define PORT_G GPIO_PG0
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#define PORT_H GPIO_PH0
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#endif
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#ifdef BF548_FAMILY
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#include <asm-blackfin/mach-bf548/gpio.h>
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#endif
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#ifdef BF561_FAMILY
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#define MAX_BLACKFIN_GPIOS 48
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#define GPIO_PF0 0
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#define GPIO_PF1 1
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#define GPIO_PF2 2
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#define GPIO_PF3 3
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#define GPIO_PF4 4
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#define GPIO_PF5 5
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#define GPIO_PF6 6
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#define GPIO_PF7 7
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#define GPIO_PF8 8
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#define GPIO_PF9 9
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#define GPIO_PF10 10
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#define GPIO_PF11 11
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#define GPIO_PF12 12
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#define GPIO_PF13 13
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#define GPIO_PF14 14
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#define GPIO_PF15 15
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#define GPIO_PF16 16
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#define GPIO_PF17 17
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#define GPIO_PF18 18
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#define GPIO_PF19 19
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#define GPIO_PF20 20
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#define GPIO_PF21 21
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#define GPIO_PF22 22
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#define GPIO_PF23 23
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#define GPIO_PF24 24
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#define GPIO_PF25 25
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#define GPIO_PF26 26
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#define GPIO_PF27 27
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#define GPIO_PF28 28
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#define GPIO_PF29 29
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#define GPIO_PF30 30
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#define GPIO_PF31 31
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#define GPIO_PF32 32
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#define GPIO_PF33 33
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#define GPIO_PF34 34
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#define GPIO_PF35 35
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#define GPIO_PF36 36
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#define GPIO_PF37 37
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#define GPIO_PF38 38
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#define GPIO_PF39 39
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#define GPIO_PF40 40
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#define GPIO_PF41 41
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#define GPIO_PF42 42
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#define GPIO_PF43 43
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#define GPIO_PF44 44
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#define GPIO_PF45 45
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#define GPIO_PF46 46
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#define GPIO_PF47 47
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#define PORT_FIO0 GPIO_0
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#define PORT_FIO1 GPIO_16
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#define PORT_FIO2 GPIO_32
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#endif
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#ifndef __ASSEMBLY__
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/***********************************************************
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*
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* FUNCTIONS: Blackfin General Purpose Ports Access Functions
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*
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* INPUTS/OUTPUTS:
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* gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
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*
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*
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* DESCRIPTION: These functions abstract direct register access
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* to Blackfin processor General Purpose
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* Ports Regsiters
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*
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* CAUTION: These functions do not belong to the GPIO Driver API
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*************************************************************
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* MODIFICATION HISTORY :
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**************************************************************/
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#ifndef BF548_FAMILY
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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 CONFIG_PM
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#define PM_WAKE_RISING 0x1
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#define PM_WAKE_FALLING 0x2
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#define PM_WAKE_HIGH 0x4
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#define PM_WAKE_LOW 0x8
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#define PM_WAKE_BOTH_EDGES (PM_WAKE_RISING | PM_WAKE_FALLING)
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int gpio_pm_wakeup_request(unsigned gpio, unsigned char type);
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void gpio_pm_wakeup_free(unsigned gpio);
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unsigned int gpio_pm_setup(void);
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void gpio_pm_restore(void);
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struct gpio_port_s {
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unsigned short data;
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unsigned short data_clear;
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unsigned short data_set;
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unsigned short toggle;
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unsigned short maska;
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unsigned short maska_clear;
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unsigned short maska_set;
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unsigned short maska_toggle;
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unsigned short maskb;
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unsigned short maskb_clear;
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unsigned short maskb_set;
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unsigned short maskb_toggle;
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unsigned short dir;
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unsigned short polar;
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unsigned short edge;
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unsigned short both;
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unsigned short inen;
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unsigned short fer;
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unsigned short reserved;
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};
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#endif /*CONFIG_PM*/
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/***********************************************************
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*
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* FUNCTIONS: Blackfin GPIO Driver
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*
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* INPUTS/OUTPUTS:
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* gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
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*
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*
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* DESCRIPTION: Blackfin GPIO Driver API
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*
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* CAUTION:
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*************************************************************
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* MODIFICATION HISTORY :
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**************************************************************/
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int gpio_request(unsigned, const char *);
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void gpio_free(unsigned);
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void gpio_set_value(unsigned gpio, int arg);
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int gpio_get_value(unsigned gpio);
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#ifndef BF548_FAMILY
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#define gpio_get_value(gpio) get_gpio_data(gpio)
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#define gpio_set_value(gpio, value) set_gpio_data(gpio, value)
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#endif
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int gpio_direction_input(unsigned gpio);
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int gpio_direction_output(unsigned gpio, int value);
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#include <asm-generic/gpio.h> /* cansleep wrappers */
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#include <asm/irq.h>
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static inline int gpio_to_irq(unsigned gpio)
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{
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return (gpio + GPIO_IRQ_BASE);
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}
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static inline int irq_to_gpio(unsigned irq)
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{
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return (irq - GPIO_IRQ_BASE);
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}
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_BLACKFIN_GPIO_H__ */
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