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imxrt117x: add functions to control gpio #283

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Sep 4, 2023
Merged

imxrt117x: add functions to control gpio #283

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104 changes: 104 additions & 0 deletions hal/armv7m/imxrt/117x/imxrt.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,10 @@ enum { stk_ctrl = 0, stk_load, stk_val, stk_calib };
enum { aipstz_mpr = 0, aipstz_opacr = 16, aipstz_opacr1, aipstz_opacr2, aipstz_opacr3, aipstz_opacr4 };


enum { gpio_dr = 0, gpio_gdir, gpio_psr, gpio_icr1, gpio_icr2, gpio_imr, gpio_isr, gpio_edge_sel, gpio_dr_set,
gpio_dr_clear, gpio_dr_toggle };


enum { src_scr = 0, src_srmr, src_sbmr1, src_sbmr2, src_srsr,
src_gpr1, src_gpr2, src_gpr3, src_gpr4, src_gpr5,
src_gpr6, src_gpr7, src_gpr8, src_gpr9, src_gpr10,
Expand All @@ -49,6 +53,7 @@ struct {
volatile u32 *iomuxc_lpsr_gpr;
volatile u32 *iomuxc_gpr;
volatile u32 *iomuxc;
volatile u32 *gpio[13];
volatile u32 *ccm;

u32 cpuclk;
Expand Down Expand Up @@ -220,6 +225,91 @@ __attribute__((section(".noxip"))) int _imxrt_setIOisel(int isel, char daisy)
}


/* GPIO */


static volatile u32 *_imxrt_gpioGetReg(unsigned int d)
{
return (d < sizeof(imxrt_common.gpio) / sizeof(imxrt_common.gpio[0])) ? imxrt_common.gpio[d] : NULL;
}


int _imxrt_gpioConfig(unsigned int d, u8 pin, u8 dir)
{
volatile u32 *reg = _imxrt_gpioGetReg(d);
u32 register clr;

if ((reg == NULL) || (pin > 31u)) {
return -1;
}

clr = *(reg + gpio_gdir) & ~(1u << pin);
dir = (dir != 0u) ? 1u : 0u;
*(reg + gpio_gdir) = clr | (dir << pin);

return 0;
}


int _imxrt_gpioSet(unsigned int d, u8 pin, u8 val)
{
volatile u32 *reg = _imxrt_gpioGetReg(d);
u32 register clr;

if ((reg == NULL) || (pin > 31u)) {
return -1;
}

clr = *(reg + gpio_dr) & ~(1u << pin);
val = (val != 0u) ? 1u : 0u;
*(reg + gpio_dr) = clr | (val << pin);

return 0;
}


int _imxrt_gpioSetPort(unsigned int d, u32 val)
{
volatile u32 *reg = _imxrt_gpioGetReg(d);

if (reg == NULL) {
return -1;
}

*(reg + gpio_dr) = val;

return 0;
}


int _imxrt_gpioGet(unsigned int d, u8 pin, u8 *val)
{
volatile u32 *reg = _imxrt_gpioGetReg(d);

if ((reg == NULL) || (pin > 31)) {
return -1;
}

*val = ((*(reg + gpio_psr) & (1u << pin)) != 0u) ? 1u : 0u;

return 0;
}


int _imxrt_gpioGetPort(unsigned int d, u32 *val)
{
volatile u32 *reg = _imxrt_gpioGetReg(d);

if (reg == NULL) {
return -1;
}

*val = *(reg + gpio_psr);

return 0;
}


/* CCM */

__attribute__((section(".noxip"))) int _imxrt_getDevClock(int clock, int *div, int *mux, int *mfd, int *mfn, int *state)
Expand Down Expand Up @@ -373,6 +463,20 @@ void _imxrt_init(void)
imxrt_common.iomuxc = (void *)0x400e8000;
imxrt_common.ccm = (void *)0x40cc0000;

imxrt_common.gpio[0] = (void *)0x4012c000;
imxrt_common.gpio[1] = (void *)0x40130000;
imxrt_common.gpio[2] = (void *)0x40134000;
imxrt_common.gpio[3] = (void *)0x40138000;
imxrt_common.gpio[4] = (void *)0x4013c000;
imxrt_common.gpio[5] = (void *)0x40140000;
imxrt_common.gpio[6] = (void *)0x40c5c000;
imxrt_common.gpio[7] = (void *)0x40c60000;
imxrt_common.gpio[8] = (void *)0x40c64000;
imxrt_common.gpio[9] = (void *)0x40c68000;
imxrt_common.gpio[10] = (void *)0x40c6c000;
imxrt_common.gpio[11] = (void *)0x40c70000;
imxrt_common.gpio[12] = (void *)0x40ca0000;

imxrt_common.cpuclk = 640000000;

imxrt_common.cm4state = (*(imxrt_common.src + src_scr) & 1u);
Expand Down
22 changes: 22 additions & 0 deletions hal/armv7m/imxrt/117x/imxrt.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,11 @@
#include "../types.h"


/* clang-format off */

enum { gpio1 = 0, gpio2, gpio3, gpio4, gpio5, gpio6, gpio7, gpio8, gpio9, gpio10, gpio11, gpio12, gpio13 };


/* CCM - Root Clocks */
enum { pctl_clk_cm7 = 0, pctl_clk_cm4, pctl_clk_bus, pctl_clk_bus_lpsr, pctl_clk_semc, pctl_clk_cssys,
pctl_clk_cstrace, pctl_clk_m4_systick, pctl_clk_m7_systick, pctl_clk_adc1, pctl_clk_adc2, pctl_clk_acmp,
Expand Down Expand Up @@ -315,6 +320,8 @@ enum { cti0_err_irq = 17 + 16, cti1_err_irq, core_irq, lpuart1_irq, lpuart2_irq,
xecc_flexspi1_fatal_irq, xecc_flexspi2_irq, xecc_flexspi2_fatal_irq, xecc_semc_irq, xecc_semc_fatal_irq, enet_qos_irq,
enet_pmt_irq };

/* clang-format on */


extern int _imxrt_setIOmux(int mux, char sion, char mode);

Expand All @@ -325,6 +332,21 @@ extern int _imxrt_setIOpad(int pad, char sre, char dse, char pue, char pus, char
extern int _imxrt_setIOisel(int isel, char daisy);


extern int _imxrt_gpioConfig(unsigned int d, u8 pin, u8 dir);


extern int _imxrt_gpioSet(unsigned int d, u8 pin, u8 val);


extern int _imxrt_gpioSetPort(unsigned int d, u32 val);


extern int _imxrt_gpioGet(unsigned int d, u8 pin, u8 *val);


extern int _imxrt_gpioGetPort(unsigned int d, u32 *val);


extern int _imxrt_getDevClock(int clock, int *div, int *mux, int *mfd, int *mfn, int *state);


Expand Down
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