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37 #include "gpio_regs.h"
38 #include "clkman_regs.h"
40 PinName port_pin(PortName port, int pin_n)
42 return (PinName)((port << PORT_SHIFT) | pin_n);
45 void port_init(port_t *obj, PortName port, int mask, PinDirection dir)
49 obj->reg_out = &MXC_GPIO->out_val[port];
50 obj->reg_in = &MXC_GPIO->in_val[port];
52 /* Ensure that the GPIO clock is enabled */
53 if (MXC_CLKMAN->clk_ctrl_1_gpio == MXC_E_CLKMAN_CLK_SCALE_DISABLED) {
54 MXC_CLKMAN->clk_ctrl_1_gpio = MXC_E_CLKMAN_CLK_SCALE_ENABLED;
58 // The function is set per pin: reuse gpio logic
59 for (i=0; i<32; i++) {
60 if (obj->mask & (1<<i)) {
61 gpio_set(port_pin(obj->port, i));
62 pin_dir(port_pin(obj->port, i), dir);
67 void port_mode(port_t *obj, PinMode mode)
70 // The mode is set per pin: reuse pinmap logic
71 for (i=0; i<32; i++) {
72 if (obj->mask & (1<<i)) {
73 pin_mode(port_pin(obj->port, i), mode);
78 void port_dir(port_t *obj, PinDirection dir)
81 // The mode is set per pin: reuse gpio logic
82 for (i=0; i<32; i++) {
83 if (obj->mask & (1<<i)) {
84 pin_dir(port_pin(obj->port, i), dir);
89 void port_write(port_t *obj, int value)
91 *obj->reg_out = (*obj->reg_out & ~obj->mask) | (value & obj->mask);
94 int port_read(port_t *obj)
96 return (*obj->reg_in & obj->mask);