Ben Katz / mbed-dev-f303

mbed library sources. Supersedes mbed-src.

Dependents:   Hobbyking_Cheetah_Compact Hobbyking_Cheetah_Compact_DRV8323_14bit Hobbyking_Cheetah_Compact_DRV8323_V51_201907 HKC_MiniCheetah ... more

Fork of mbed-dev by mbed official

targets/TARGET_Maxim/TARGET_MAX32620/port_api.c@181:36facd806e4a, 2018-07-30 (annotated)

Committer:
benkatz
Date:
Mon Jul 30 20:31:44 2018 +0000
Revision:
181:36facd806e4a
Parent:
149:156823d33999 
going on the robot.  fixed a dumb bug in float_to_uint

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 149:156823d33999 1 /*******************************************************************************
<> 149:156823d33999 2 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
<> 149:156823d33999 3 *
<> 149:156823d33999 4 * Permission is hereby granted, free of charge, to any person obtaining a
<> 149:156823d33999 5 * copy of this software and associated documentation files (the "Software"),
<> 149:156823d33999 6 * to deal in the Software without restriction, including without limitation
<> 149:156823d33999 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
<> 149:156823d33999 8 * and/or sell copies of the Software, and to permit persons to whom the
<> 149:156823d33999 9 * Software is furnished to do so, subject to the following conditions:
<> 149:156823d33999 10 *
<> 149:156823d33999 11 * The above copyright notice and this permission notice shall be included
<> 149:156823d33999 12 * in all copies or substantial portions of the Software.
<> 149:156823d33999 13 *
<> 149:156823d33999 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
<> 149:156823d33999 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
<> 149:156823d33999 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
<> 149:156823d33999 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
<> 149:156823d33999 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
<> 149:156823d33999 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
<> 149:156823d33999 20 * OTHER DEALINGS IN THE SOFTWARE.
<> 149:156823d33999 21 *
<> 149:156823d33999 22 * Except as contained in this notice, the name of Maxim Integrated
<> 149:156823d33999 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
<> 149:156823d33999 24 * Products, Inc. Branding Policy.
<> 149:156823d33999 25 *
<> 149:156823d33999 26 * The mere transfer of this software does not imply any licenses
<> 149:156823d33999 27 * of trade secrets, proprietary technology, copyrights, patents,
<> 149:156823d33999 28 * trademarks, maskwork rights, or any other form of intellectual
<> 149:156823d33999 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
<> 149:156823d33999 30 * ownership rights.
<> 149:156823d33999 31 *******************************************************************************
<> 149:156823d33999 32 */
<> 149:156823d33999 33
<> 149:156823d33999 34 #include "port_api.h"
<> 149:156823d33999 35 #include "pinmap.h"
<> 149:156823d33999 36 #include "gpio_api.h"
<> 149:156823d33999 37 #include "gpio_regs.h"
<> 149:156823d33999 38 #include "clkman_regs.h"
<> 149:156823d33999 39
<> 149:156823d33999 40 PinName port_pin(PortName port, int pin_n)
<> 149:156823d33999 41 {
<> 149:156823d33999 42 return (PinName)((port << PORT_SHIFT) | pin_n);
<> 149:156823d33999 43 }
<> 149:156823d33999 44
<> 149:156823d33999 45 void port_init(port_t *obj, PortName port, int mask, PinDirection dir)
<> 149:156823d33999 46 {
<> 149:156823d33999 47 obj->port = port;
<> 149:156823d33999 48 obj->mask = mask;
<> 149:156823d33999 49 obj->reg_out = &MXC_GPIO->out_val[port];
<> 149:156823d33999 50 obj->reg_in = &MXC_GPIO->in_val[port];
<> 149:156823d33999 51
<> 149:156823d33999 52 /* Ensure that the GPIO clock is enabled */
<> 149:156823d33999 53 MXC_CLKMAN->sys_clk_ctrl_6_gpio = MXC_S_CLKMAN_CLK_SCALE_DIV_1;
<> 149:156823d33999 54
<> 149:156823d33999 55 uint32_t i;
<> 149:156823d33999 56 // The function is set per pin: reuse gpio logic
<> 149:156823d33999 57 for (i=0; i<32; i++) {
<> 149:156823d33999 58 if (obj->mask & (1<<i)) {
<> 149:156823d33999 59 gpio_set(port_pin(obj->port, i));
<> 149:156823d33999 60 pin_dir(port_pin(obj->port, i), dir);
<> 149:156823d33999 61 }
<> 149:156823d33999 62 }
<> 149:156823d33999 63 }
<> 149:156823d33999 64
<> 149:156823d33999 65 void port_mode(port_t *obj, PinMode mode)
<> 149:156823d33999 66 {
<> 149:156823d33999 67 uint32_t i;
<> 149:156823d33999 68 // The mode is set per pin: reuse pinmap logic
<> 149:156823d33999 69 for (i=0; i<32; i++) {
<> 149:156823d33999 70 if (obj->mask & (1<<i)) {
<> 149:156823d33999 71 pin_mode(port_pin(obj->port, i), mode);
<> 149:156823d33999 72 }
<> 149:156823d33999 73 }
<> 149:156823d33999 74 }
<> 149:156823d33999 75
<> 149:156823d33999 76 void port_dir(port_t *obj, PinDirection dir)
<> 149:156823d33999 77 {
<> 149:156823d33999 78 uint32_t i;
<> 149:156823d33999 79 // The mode is set per pin: reuse gpio logic
<> 149:156823d33999 80 for (i=0; i<32; i++) {
<> 149:156823d33999 81 if (obj->mask & (1<<i)) {
<> 149:156823d33999 82 pin_dir(port_pin(obj->port, i), dir);
<> 149:156823d33999 83 }
<> 149:156823d33999 84 }
<> 149:156823d33999 85 }
<> 149:156823d33999 86
<> 149:156823d33999 87 void port_write(port_t *obj, int value)
<> 149:156823d33999 88 {
<> 149:156823d33999 89 *obj->reg_out = (*obj->reg_out & ~obj->mask) | (value & obj->mask);
<> 149:156823d33999 90 }
<> 149:156823d33999 91
<> 149:156823d33999 92 int port_read(port_t *obj)
<> 149:156823d33999 93 {
<> 149:156823d33999 94 return (*obj->reg_in & obj->mask);
<> 149:156823d33999 95 }