Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/hal/TARGET_Maxim/TARGET_MAX32620/port_api.c@144:ef7eb2e8f9f7, 2016-09-02 (annotated)

Committer:
<>
Date:
Fri Sep 02 15:07:44 2016 +0100
Revision:
144:ef7eb2e8f9f7
This updates the lib to the mbed lib v125

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /*******************************************************************************
<> 144:ef7eb2e8f9f7 2 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
<> 144:ef7eb2e8f9f7 3 *
<> 144:ef7eb2e8f9f7 4 * Permission is hereby granted, free of charge, to any person obtaining a
<> 144:ef7eb2e8f9f7 5 * copy of this software and associated documentation files (the "Software"),
<> 144:ef7eb2e8f9f7 6 * to deal in the Software without restriction, including without limitation
<> 144:ef7eb2e8f9f7 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
<> 144:ef7eb2e8f9f7 8 * and/or sell copies of the Software, and to permit persons to whom the
<> 144:ef7eb2e8f9f7 9 * Software is furnished to do so, subject to the following conditions:
<> 144:ef7eb2e8f9f7 10 *
<> 144:ef7eb2e8f9f7 11 * The above copyright notice and this permission notice shall be included
<> 144:ef7eb2e8f9f7 12 * in all copies or substantial portions of the Software.
<> 144:ef7eb2e8f9f7 13 *
<> 144:ef7eb2e8f9f7 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
<> 144:ef7eb2e8f9f7 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
<> 144:ef7eb2e8f9f7 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
<> 144:ef7eb2e8f9f7 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
<> 144:ef7eb2e8f9f7 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
<> 144:ef7eb2e8f9f7 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
<> 144:ef7eb2e8f9f7 20 * OTHER DEALINGS IN THE SOFTWARE.
<> 144:ef7eb2e8f9f7 21 *
<> 144:ef7eb2e8f9f7 22 * Except as contained in this notice, the name of Maxim Integrated
<> 144:ef7eb2e8f9f7 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
<> 144:ef7eb2e8f9f7 24 * Products, Inc. Branding Policy.
<> 144:ef7eb2e8f9f7 25 *
<> 144:ef7eb2e8f9f7 26 * The mere transfer of this software does not imply any licenses
<> 144:ef7eb2e8f9f7 27 * of trade secrets, proprietary technology, copyrights, patents,
<> 144:ef7eb2e8f9f7 28 * trademarks, maskwork rights, or any other form of intellectual
<> 144:ef7eb2e8f9f7 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
<> 144:ef7eb2e8f9f7 30 * ownership rights.
<> 144:ef7eb2e8f9f7 31 *******************************************************************************
<> 144:ef7eb2e8f9f7 32 */
<> 144:ef7eb2e8f9f7 33
<> 144:ef7eb2e8f9f7 34 #include "port_api.h"
<> 144:ef7eb2e8f9f7 35 #include "pinmap.h"
<> 144:ef7eb2e8f9f7 36 #include "gpio_api.h"
<> 144:ef7eb2e8f9f7 37 #include "gpio_regs.h"
<> 144:ef7eb2e8f9f7 38 #include "clkman_regs.h"
<> 144:ef7eb2e8f9f7 39
<> 144:ef7eb2e8f9f7 40 PinName port_pin(PortName port, int pin_n)
<> 144:ef7eb2e8f9f7 41 {
<> 144:ef7eb2e8f9f7 42 return (PinName)((port << PORT_SHIFT) | pin_n);
<> 144:ef7eb2e8f9f7 43 }
<> 144:ef7eb2e8f9f7 44
<> 144:ef7eb2e8f9f7 45 void port_init(port_t *obj, PortName port, int mask, PinDirection dir)
<> 144:ef7eb2e8f9f7 46 {
<> 144:ef7eb2e8f9f7 47 obj->port = port;
<> 144:ef7eb2e8f9f7 48 obj->mask = mask;
<> 144:ef7eb2e8f9f7 49 obj->reg_out = &MXC_GPIO->out_val[port];
<> 144:ef7eb2e8f9f7 50 obj->reg_in = &MXC_GPIO->in_val[port];
<> 144:ef7eb2e8f9f7 51
<> 144:ef7eb2e8f9f7 52 /* Ensure that the GPIO clock is enabled */
<> 144:ef7eb2e8f9f7 53 MXC_CLKMAN->sys_clk_ctrl_6_gpio = MXC_S_CLKMAN_CLK_SCALE_DIV_1;
<> 144:ef7eb2e8f9f7 54
<> 144:ef7eb2e8f9f7 55 uint32_t i;
<> 144:ef7eb2e8f9f7 56 // The function is set per pin: reuse gpio logic
<> 144:ef7eb2e8f9f7 57 for (i=0; i<32; i++) {
<> 144:ef7eb2e8f9f7 58 if (obj->mask & (1<<i)) {
<> 144:ef7eb2e8f9f7 59 gpio_set(port_pin(obj->port, i));
<> 144:ef7eb2e8f9f7 60 pin_dir(port_pin(obj->port, i), dir);
<> 144:ef7eb2e8f9f7 61 }
<> 144:ef7eb2e8f9f7 62 }
<> 144:ef7eb2e8f9f7 63 }
<> 144:ef7eb2e8f9f7 64
<> 144:ef7eb2e8f9f7 65 void port_mode(port_t *obj, PinMode mode)
<> 144:ef7eb2e8f9f7 66 {
<> 144:ef7eb2e8f9f7 67 uint32_t i;
<> 144:ef7eb2e8f9f7 68 // The mode is set per pin: reuse pinmap logic
<> 144:ef7eb2e8f9f7 69 for (i=0; i<32; i++) {
<> 144:ef7eb2e8f9f7 70 if (obj->mask & (1<<i)) {
<> 144:ef7eb2e8f9f7 71 pin_mode(port_pin(obj->port, i), mode);
<> 144:ef7eb2e8f9f7 72 }
<> 144:ef7eb2e8f9f7 73 }
<> 144:ef7eb2e8f9f7 74 }
<> 144:ef7eb2e8f9f7 75
<> 144:ef7eb2e8f9f7 76 void port_dir(port_t *obj, PinDirection dir)
<> 144:ef7eb2e8f9f7 77 {
<> 144:ef7eb2e8f9f7 78 uint32_t i;
<> 144:ef7eb2e8f9f7 79 // The mode is set per pin: reuse gpio logic
<> 144:ef7eb2e8f9f7 80 for (i=0; i<32; i++) {
<> 144:ef7eb2e8f9f7 81 if (obj->mask & (1<<i)) {
<> 144:ef7eb2e8f9f7 82 pin_dir(port_pin(obj->port, i), dir);
<> 144:ef7eb2e8f9f7 83 }
<> 144:ef7eb2e8f9f7 84 }
<> 144:ef7eb2e8f9f7 85 }
<> 144:ef7eb2e8f9f7 86
<> 144:ef7eb2e8f9f7 87 void port_write(port_t *obj, int value)
<> 144:ef7eb2e8f9f7 88 {
<> 144:ef7eb2e8f9f7 89 *obj->reg_out = (*obj->reg_out & ~obj->mask) | (value & obj->mask);
<> 144:ef7eb2e8f9f7 90 }
<> 144:ef7eb2e8f9f7 91
<> 144:ef7eb2e8f9f7 92 int port_read(port_t *obj)
<> 144:ef7eb2e8f9f7 93 {
<> 144:ef7eb2e8f9f7 94 return (*obj->reg_in & obj->mask);
<> 144:ef7eb2e8f9f7 95 }