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fpga: convert tabs to spaces

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Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
Sean Cross
2019-02-26 13:10:19 +08:00
parent f4297532d0
commit 9876d92981
1 changed files with 56 additions and 56 deletions
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112
fpga.c
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@@ -11,11 +11,11 @@
#include "fpga.h" #include "fpga.h"
struct ff_fpga { struct ff_fpga {
struct { struct {
int reset; int reset;
int done; int done;
int cs; int cs;
} pins; } pins;
}; };
int fpgaDone(struct ff_fpga *fpga) { int fpgaDone(struct ff_fpga *fpga) {
@@ -23,90 +23,90 @@ int fpgaDone(struct ff_fpga *fpga) {
} }
int fpgaResetSlave(struct ff_fpga *fpga) { int fpgaResetSlave(struct ff_fpga *fpga) {
// Put the FPGA into reset // Put the FPGA into reset
gpioSetMode(fpga->pins.reset, PI_OUTPUT); gpioSetMode(fpga->pins.reset, PI_OUTPUT);
gpioWrite(fpga->pins.reset, 0); gpioWrite(fpga->pins.reset, 0);
// Set the CS pin to a GPIO, which will let us control it // Set the CS pin to a GPIO, which will let us control it
gpioSetMode(fpga->pins.cs, PI_OUTPUT); gpioSetMode(fpga->pins.cs, PI_OUTPUT);
// Set CS to 0, which will put the FPGA into slave mode // Set CS to 0, which will put the FPGA into slave mode
gpioWrite(fpga->pins.cs, 0); gpioWrite(fpga->pins.cs, 0);
usleep(10000); // XXX figure out correct sleep length here usleep(10000); // XXX figure out correct sleep length here
// Bring the FPGA out of reset // Bring the FPGA out of reset
gpioWrite(fpga->pins.reset, 1); gpioWrite(fpga->pins.reset, 1);
usleep(1200); // 13.2.SPI Slave Configuration Process usleep(1200); // 13.2.SPI Slave Configuration Process
// Release the CS pin // Release the CS pin
gpioWrite(fpga->pins.cs, 1); gpioWrite(fpga->pins.cs, 1);
return 0; return 0;
} }
int fpgaResetMaster(struct ff_fpga *fpga) { int fpgaResetMaster(struct ff_fpga *fpga) {
// Put the FPGA into reset // Put the FPGA into reset
gpioSetMode(fpga->pins.reset, PI_OUTPUT); gpioSetMode(fpga->pins.reset, PI_OUTPUT);
gpioWrite(fpga->pins.reset, 0); gpioWrite(fpga->pins.reset, 0);
// Set the CS pin to a GPIO, which will let us control it // Set the CS pin to a GPIO, which will let us control it
gpioSetMode(fpga->pins.cs, PI_OUTPUT); gpioSetMode(fpga->pins.cs, PI_OUTPUT);
// Set CS to 1, which will put the FPGA into "self boot" mode // Set CS to 1, which will put the FPGA into "self boot" mode
gpioWrite(fpga->pins.cs, 1); gpioWrite(fpga->pins.cs, 1);
usleep(10000); // XXX figure out correct sleep length here usleep(10000); // XXX figure out correct sleep length here
// Bring the FPGA out of reset // Bring the FPGA out of reset
gpioWrite(fpga->pins.reset, 1); gpioWrite(fpga->pins.reset, 1);
usleep(1200); // 13.2.SPI Slave Configuration Process usleep(1200); // 13.2.SPI Slave Configuration Process
return 0; return 0;
} }
int fpgaReset(struct ff_fpga *fpga) { int fpgaReset(struct ff_fpga *fpga) {
// Put the FPGA into reset // Put the FPGA into reset
gpioSetMode(fpga->pins.reset, PI_OUTPUT); gpioSetMode(fpga->pins.reset, PI_OUTPUT);
gpioWrite(fpga->pins.reset, 0); gpioWrite(fpga->pins.reset, 0);
return 0; return 0;
} }
int fpgaInit(struct ff_fpga *fpga) { int fpgaInit(struct ff_fpga *fpga) {
// Put the FPGA into reset // Put the FPGA into reset
gpioSetMode(fpga->pins.reset, PI_OUTPUT); gpioSetMode(fpga->pins.reset, PI_OUTPUT);
gpioWrite(fpga->pins.reset, 0); gpioWrite(fpga->pins.reset, 0);
// Also monitor the C_DONE pin // Also monitor the C_DONE pin
gpioSetMode(fpga->pins.done, PI_INPUT); gpioSetMode(fpga->pins.done, PI_INPUT);
return 0; return 0;
} }
struct ff_fpga *fpgaAlloc(void) { struct ff_fpga *fpgaAlloc(void) {
struct ff_fpga *fpga = (struct ff_fpga *)malloc(sizeof(struct ff_fpga)); struct ff_fpga *fpga = (struct ff_fpga *)malloc(sizeof(struct ff_fpga));
memset(fpga, 0, sizeof(*fpga)); memset(fpga, 0, sizeof(*fpga));
return fpga; return fpga;
} }
void fpgaSetPin(struct ff_fpga *fpga, enum fpga_pin pin, int val) { void fpgaSetPin(struct ff_fpga *fpga, enum fpga_pin pin, int val) {
switch (pin) { switch (pin) {
case FP_RESET: fpga->pins.reset = val; break; case FP_RESET: fpga->pins.reset = val; break;
case FP_DONE: fpga->pins.done = val; break; case FP_DONE: fpga->pins.done = val; break;
case FP_CS: fpga->pins.cs = val; break; case FP_CS: fpga->pins.cs = val; break;
default: fprintf(stderr, "unrecognized pin: %d\n", pin); break; default: fprintf(stderr, "unrecognized pin: %d\n", pin); break;
} }
} }
void fpgaFree(struct ff_fpga **fpga) { void fpgaFree(struct ff_fpga **fpga) {
if (!fpga) if (!fpga)
return; return;
if (!*fpga) if (!*fpga)
return; return;
free(*fpga); free(*fpga);
*fpga = NULL; *fpga = NULL;
} }