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Last commit 20 Feb 2019 by 
mbed official
targets/hal/TARGET_Maxim/TARGET_MAX32600/pinmap.c@621:9c82b0f79f3d, 2015-09-11 (annotated)
- Committer:
- mbed_official
- Date:
- Fri Sep 11 09:30:09 2015 +0100
- Revision:
- 621:9c82b0f79f3d
- Parent:
- 514:7668256dbe61
Synchronized with git revision 6c1d63e069ab9bd86de92e8296ca783681257538
Full URL: https://github.com/mbedmicro/mbed/commit/6c1d63e069ab9bd86de92e8296ca783681257538/
ignore target files not supported by the yotta module
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mbed_official | 514:7668256dbe61 | 1 | /******************************************************************************* |
| mbed_official | 514:7668256dbe61 | 2 | * Copyright (C) 2015 Maxim Integrated Products, Inc., All Rights Reserved. |
| mbed_official | 514:7668256dbe61 | 3 | * |
| mbed_official | 514:7668256dbe61 | 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| mbed_official | 514:7668256dbe61 | 5 | * copy of this software and associated documentation files (the "Software"), |
| mbed_official | 514:7668256dbe61 | 6 | * to deal in the Software without restriction, including without limitation |
| mbed_official | 514:7668256dbe61 | 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| mbed_official | 514:7668256dbe61 | 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| mbed_official | 514:7668256dbe61 | 9 | * Software is furnished to do so, subject to the following conditions: |
| mbed_official | 514:7668256dbe61 | 10 | * |
| mbed_official | 514:7668256dbe61 | 11 | * The above copyright notice and this permission notice shall be included |
| mbed_official | 514:7668256dbe61 | 12 | * in all copies or substantial portions of the Software. |
| mbed_official | 514:7668256dbe61 | 13 | * |
| mbed_official | 514:7668256dbe61 | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| mbed_official | 514:7668256dbe61 | 15 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| mbed_official | 514:7668256dbe61 | 16 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| mbed_official | 514:7668256dbe61 | 17 | * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES |
| mbed_official | 514:7668256dbe61 | 18 | * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| mbed_official | 514:7668256dbe61 | 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| mbed_official | 514:7668256dbe61 | 20 | * OTHER DEALINGS IN THE SOFTWARE. |
| mbed_official | 514:7668256dbe61 | 21 | * |
| mbed_official | 514:7668256dbe61 | 22 | * Except as contained in this notice, the name of Maxim Integrated |
| mbed_official | 514:7668256dbe61 | 23 | * Products, Inc. shall not be used except as stated in the Maxim Integrated |
| mbed_official | 514:7668256dbe61 | 24 | * Products, Inc. Branding Policy. |
| mbed_official | 514:7668256dbe61 | 25 | * |
| mbed_official | 514:7668256dbe61 | 26 | * The mere transfer of this software does not imply any licenses |
| mbed_official | 514:7668256dbe61 | 27 | * of trade secrets, proprietary technology, copyrights, patents, |
| mbed_official | 514:7668256dbe61 | 28 | * trademarks, maskwork rights, or any other form of intellectual |
| mbed_official | 514:7668256dbe61 | 29 | * property whatsoever. Maxim Integrated Products, Inc. retains all |
| mbed_official | 514:7668256dbe61 | 30 | * ownership rights. |
| mbed_official | 514:7668256dbe61 | 31 | ******************************************************************************* |
| mbed_official | 514:7668256dbe61 | 32 | */ |
| mbed_official | 514:7668256dbe61 | 33 | |
| mbed_official | 514:7668256dbe61 | 34 | #include "mbed_assert.h" |
| mbed_official | 514:7668256dbe61 | 35 | #include "pinmap.h" |
| mbed_official | 514:7668256dbe61 | 36 | #include "objects.h" |
| mbed_official | 514:7668256dbe61 | 37 | #include "gpio_regs.h" |
| mbed_official | 514:7668256dbe61 | 38 | #include "ioman_regs.h" |
| mbed_official | 514:7668256dbe61 | 39 | |
| mbed_official | 514:7668256dbe61 | 40 | void pin_function(PinName name, int function) |
| mbed_official | 514:7668256dbe61 | 41 | { |
| mbed_official | 514:7668256dbe61 | 42 | MBED_ASSERT(name != (PinName)NC); |
| mbed_official | 514:7668256dbe61 | 43 | |
| mbed_official | 514:7668256dbe61 | 44 | if ((function >= 0) && (function <= 0xF)) { |
| mbed_official | 514:7668256dbe61 | 45 | unsigned int port = PINNAME_TO_PORT(name); |
| mbed_official | 514:7668256dbe61 | 46 | unsigned int pin = PINNAME_TO_PIN(name); |
| mbed_official | 514:7668256dbe61 | 47 | uint32_t temp = MXC_GPIO->func_sel[port] & ~(0xF << (pin*4)); |
| mbed_official | 514:7668256dbe61 | 48 | MXC_GPIO->func_sel[port] = temp | ((uint32_t)function << (pin*4)); |
| mbed_official | 514:7668256dbe61 | 49 | } else { |
| mbed_official | 514:7668256dbe61 | 50 | /* Assume this is a pointer to a pin function object */ |
| mbed_official | 514:7668256dbe61 | 51 | pin_function_t *obj = (pin_function_t*)function; |
| mbed_official | 514:7668256dbe61 | 52 | |
| mbed_official | 514:7668256dbe61 | 53 | if ((*obj->reg_ack & obj->ack_mask) != obj->req_val) { |
| mbed_official | 514:7668256dbe61 | 54 | /* Request pin mapping */ |
| mbed_official | 514:7668256dbe61 | 55 | *obj->reg_req |= obj->req_val; |
| mbed_official | 514:7668256dbe61 | 56 | |
| mbed_official | 514:7668256dbe61 | 57 | /* Check for acknowledgment */ |
| mbed_official | 514:7668256dbe61 | 58 | MBED_ASSERT((*obj->reg_ack & obj->ack_mask) == obj->req_val); |
| mbed_official | 514:7668256dbe61 | 59 | } |
| mbed_official | 514:7668256dbe61 | 60 | } |
| mbed_official | 514:7668256dbe61 | 61 | } |
| mbed_official | 514:7668256dbe61 | 62 | |
| mbed_official | 514:7668256dbe61 | 63 | void pin_mode(PinName name, PinMode mode) |
| mbed_official | 514:7668256dbe61 | 64 | { |
| mbed_official | 514:7668256dbe61 | 65 | MBED_ASSERT(name != (PinName)NC); |
| mbed_official | 514:7668256dbe61 | 66 | unsigned int port = PINNAME_TO_PORT(name); |
| mbed_official | 514:7668256dbe61 | 67 | unsigned int pin = PINNAME_TO_PIN(name); |
| mbed_official | 514:7668256dbe61 | 68 | |
| mbed_official | 514:7668256dbe61 | 69 | /* Must set mode while retaining direction */ |
| mbed_official | 514:7668256dbe61 | 70 | |
| mbed_official | 514:7668256dbe61 | 71 | /* Get the current direction */ |
| mbed_official | 514:7668256dbe61 | 72 | uint32_t out_mode = MXC_GPIO->out_mode[port]; |
| mbed_official | 514:7668256dbe61 | 73 | uint32_t curr_mode = (out_mode >> (pin*4)) & 0xF; |
| mbed_official | 514:7668256dbe61 | 74 | PinDirection dir = PIN_OUTPUT; |
| mbed_official | 514:7668256dbe61 | 75 | if ((curr_mode == MXC_V_GPIO_OUT_MODE_HIGH_Z_WEAK_PULLUP) || (curr_mode == MXC_V_GPIO_OUT_MODE_HIGH_Z)) { |
| mbed_official | 514:7668256dbe61 | 76 | dir = PIN_INPUT; |
| mbed_official | 514:7668256dbe61 | 77 | } |
| mbed_official | 514:7668256dbe61 | 78 | |
| mbed_official | 514:7668256dbe61 | 79 | /* Set mode based on current direction */ |
| mbed_official | 514:7668256dbe61 | 80 | uint32_t new_mode; |
| mbed_official | 514:7668256dbe61 | 81 | if (dir == PIN_OUTPUT) { |
| mbed_official | 514:7668256dbe61 | 82 | // PullUp = not valid, |
| mbed_official | 514:7668256dbe61 | 83 | // OpenDrain = MXC_V_GPIO_OUT_MODE_OD, |
| mbed_official | 514:7668256dbe61 | 84 | // PullNone = MXC_V_GPIO_OUT_MODE_NORMAL, |
| mbed_official | 514:7668256dbe61 | 85 | if (mode == OpenDrain) { |
| mbed_official | 514:7668256dbe61 | 86 | new_mode = MXC_V_GPIO_OUT_MODE_OPEN_DRAIN; |
| mbed_official | 514:7668256dbe61 | 87 | } else { |
| mbed_official | 514:7668256dbe61 | 88 | new_mode = MXC_V_GPIO_OUT_MODE_NORMAL_DRIVE; |
| mbed_official | 514:7668256dbe61 | 89 | } |
| mbed_official | 514:7668256dbe61 | 90 | } else { |
| mbed_official | 514:7668256dbe61 | 91 | // PullUp = MXC_V_GPIO_OUT_MODE_HIZPU, |
| mbed_official | 514:7668256dbe61 | 92 | // OpenDrain = not valid, |
| mbed_official | 514:7668256dbe61 | 93 | // PullNone = MXC_V_GPIO_OUT_MODE_HIZ, |
| mbed_official | 514:7668256dbe61 | 94 | if (mode == PullUp) { |
| mbed_official | 514:7668256dbe61 | 95 | new_mode = MXC_V_GPIO_OUT_MODE_HIGH_Z_WEAK_PULLUP; |
| mbed_official | 514:7668256dbe61 | 96 | } else { |
| mbed_official | 514:7668256dbe61 | 97 | new_mode = MXC_V_GPIO_OUT_MODE_HIGH_Z; |
| mbed_official | 514:7668256dbe61 | 98 | } |
| mbed_official | 514:7668256dbe61 | 99 | } |
| mbed_official | 514:7668256dbe61 | 100 | |
| mbed_official | 514:7668256dbe61 | 101 | /* Set new mode */ |
| mbed_official | 514:7668256dbe61 | 102 | out_mode &= ~(0xF << (pin*4)); |
| mbed_official | 514:7668256dbe61 | 103 | out_mode |= (new_mode << (pin*4)); |
| mbed_official | 514:7668256dbe61 | 104 | MXC_GPIO->out_mode[port] = out_mode; |
| mbed_official | 514:7668256dbe61 | 105 | } |
