Indentation of a SW SPI file
This commit is contained in:
Scott Lahteine
parent
1a827d5b68
commit
2c4e03d2cf
1 changed files with 98 additions and 97 deletions
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@ -57,25 +57,26 @@
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#ifdef __SAM3X8E__
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#include <U8glib.h>
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#include <Arduino.h>
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#include "../../core/macros.h"
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#include <U8glib.h>
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#include <Arduino.h>
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#include "../../core/macros.h"
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void u8g_SetPIOutput_DUE(u8g_t *u8g, uint8_t pin_index) {
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PIO_Configure(g_APinDescription[u8g->pin_list[pin_index]].pPort, PIO_OUTPUT_1,
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g_APinDescription[u8g->pin_list[pin_index]].ulPin, g_APinDescription[u8g->pin_list[pin_index]].ulPinConfiguration); // OUTPUT
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}
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void u8g_SetPIOutput_DUE(u8g_t *u8g, uint8_t pin_index) {
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PIO_Configure(g_APinDescription[u8g->pin_list[pin_index]].pPort, PIO_OUTPUT_1,
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g_APinDescription[u8g->pin_list[pin_index]].ulPin, g_APinDescription[u8g->pin_list[pin_index]].ulPinConfiguration); // OUTPUT
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}
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void u8g_SetPILevel_DUE(u8g_t *u8g, uint8_t pin_index, uint8_t level) {
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volatile Pio* port = g_APinDescription[u8g->pin_list[pin_index]].pPort;
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uint32_t mask = g_APinDescription[u8g->pin_list[pin_index]].ulPin;
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if (level) port->PIO_SODR = mask;
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else port->PIO_CODR = mask;
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}
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void u8g_SetPILevel_DUE(u8g_t *u8g, uint8_t pin_index, uint8_t level) {
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volatile Pio* port = g_APinDescription[u8g->pin_list[pin_index]].pPort;
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uint32_t mask = g_APinDescription[u8g->pin_list[pin_index]].ulPin;
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if (level) port->PIO_SODR = mask;
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else port->PIO_CODR = mask;
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}
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#define nop() __asm__ __volatile__("nop;\n\t":::)
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void __delay_4cycles(uint32_t cy) __attribute__ ((weak));
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FORCE_INLINE void __delay_4cycles(uint32_t cy) { // +1 cycle
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#if ARCH_PIPELINE_RELOAD_CYCLES<2
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#define EXTRA_NOP_CYCLES "nop"
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@ -96,107 +97,107 @@ FORCE_INLINE void __delay_4cycles(uint32_t cy) { // +1 cycle
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);
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}
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Pio *SCK_pPio, *MOSI_pPio;
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uint32_t SCK_dwMask, MOSI_dwMask;
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Pio *SCK_pPio, *MOSI_pPio;
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uint32_t SCK_dwMask, MOSI_dwMask;
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static void spiSend_sw_DUE(uint8_t val) { // 800KHz
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for (uint8_t i = 0; i < 8; i++) {
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if (val & 0x80)
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MOSI_pPio->PIO_SODR = MOSI_dwMask;
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else
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MOSI_pPio->PIO_CODR = MOSI_dwMask;
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val = val << 1;
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__delay_4cycles(2);
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SCK_pPio->PIO_SODR = SCK_dwMask;
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__delay_4cycles(22);
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SCK_pPio->PIO_CODR = SCK_dwMask;
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}
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static void spiSend_sw_DUE(uint8_t val) { // 800KHz
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for (uint8_t i = 0; i < 8; i++) {
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if (val & 0x80)
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MOSI_pPio->PIO_SODR = MOSI_dwMask;
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else
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MOSI_pPio->PIO_CODR = MOSI_dwMask;
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val = val << 1;
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__delay_4cycles(2);
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SCK_pPio->PIO_SODR = SCK_dwMask;
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__delay_4cycles(22);
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SCK_pPio->PIO_CODR = SCK_dwMask;
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}
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}
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static uint8_t rs_last_state = 255;
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static void u8g_com_DUE_st7920_write_byte_sw_spi(uint8_t rs, uint8_t val) {
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uint8_t i;
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if ( rs != rs_last_state) { // time to send a command/data byte
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rs_last_state = rs;
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if ( rs == 0 )
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/* command */
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spiSend_sw_DUE(0x0f8);
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else
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/* data */
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spiSend_sw_DUE(0x0fa);
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for( i = 0; i < 4; i++ ) // give the controller some time to process the data
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u8g_10MicroDelay(); // 2 is bad, 3 is OK, 4 is safe
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}
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static uint8_t rs_last_state = 255;
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static void u8g_com_DUE_st7920_write_byte_sw_spi(uint8_t rs, uint8_t val) {
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uint8_t i;
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if ( rs != rs_last_state) { // time to send a command/data byte
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rs_last_state = rs;
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if ( rs == 0 )
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/* command */
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spiSend_sw_DUE(0x0f8);
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else
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/* data */
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spiSend_sw_DUE(0x0fa);
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for( i = 0; i < 4; i++ ) // give the controller some time to process the data
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u8g_10MicroDelay(); // 2 is bad, 3 is OK, 4 is safe
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}
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spiSend_sw_DUE(val & 0x0f0);
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spiSend_sw_DUE(val << 4);
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}
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spiSend_sw_DUE(val & 0x0f0);
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spiSend_sw_DUE(val << 4);
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}
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uint8_t u8g_com_HAL_DUE_ST7920_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
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switch (msg) {
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case U8G_COM_MSG_INIT:
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SCK_pPio = g_APinDescription[u8g->pin_list[U8G_PI_SCK]].pPort;
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SCK_dwMask = g_APinDescription[u8g->pin_list[U8G_PI_SCK]].ulPin;
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MOSI_pPio = g_APinDescription[u8g->pin_list[U8G_PI_MOSI]].pPort;
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MOSI_dwMask = g_APinDescription[u8g->pin_list[U8G_PI_MOSI]].ulPin;
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uint8_t u8g_com_HAL_DUE_ST7920_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
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switch (msg) {
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case U8G_COM_MSG_INIT:
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SCK_pPio = g_APinDescription[u8g->pin_list[U8G_PI_SCK]].pPort;
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SCK_dwMask = g_APinDescription[u8g->pin_list[U8G_PI_SCK]].ulPin;
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MOSI_pPio = g_APinDescription[u8g->pin_list[U8G_PI_MOSI]].pPort;
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MOSI_dwMask = g_APinDescription[u8g->pin_list[U8G_PI_MOSI]].ulPin;
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u8g_SetPILevel_DUE(u8g, U8G_PI_CS, 0);
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u8g_SetPIOutput_DUE(u8g, U8G_PI_CS);
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u8g_SetPILevel_DUE(u8g, U8G_PI_SCK, 0);
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u8g_SetPIOutput_DUE(u8g, U8G_PI_SCK);
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u8g_SetPILevel_DUE(u8g, U8G_PI_MOSI, 0);
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u8g_SetPILevel_DUE(u8g, U8G_PI_MOSI, 1);
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u8g_SetPIOutput_DUE(u8g, U8G_PI_MOSI);
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u8g_Delay(5);
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u8g->pin_list[U8G_PI_A0_STATE] = 0; /* inital RS state: command mode */
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break;
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u8g_SetPILevel_DUE(u8g, U8G_PI_CS, 0);
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u8g_SetPIOutput_DUE(u8g, U8G_PI_CS);
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u8g_SetPILevel_DUE(u8g, U8G_PI_SCK, 0);
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u8g_SetPIOutput_DUE(u8g, U8G_PI_SCK);
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u8g_SetPILevel_DUE(u8g, U8G_PI_MOSI, 0);
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u8g_SetPILevel_DUE(u8g, U8G_PI_MOSI, 1);
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u8g_SetPIOutput_DUE(u8g, U8G_PI_MOSI);
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u8g_Delay(5);
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u8g->pin_list[U8G_PI_A0_STATE] = 0; /* inital RS state: command mode */
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break;
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case U8G_COM_MSG_STOP:
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break;
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case U8G_COM_MSG_STOP:
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break;
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case U8G_COM_MSG_RESET:
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if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_RESET]) u8g_SetPILevel_DUE(u8g, U8G_PI_RESET, arg_val);
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break;
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case U8G_COM_MSG_RESET:
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if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_RESET]) u8g_SetPILevel_DUE(u8g, U8G_PI_RESET, arg_val);
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break;
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case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
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u8g->pin_list[U8G_PI_A0_STATE] = arg_val;
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break;
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case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
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u8g->pin_list[U8G_PI_A0_STATE] = arg_val;
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break;
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case U8G_COM_MSG_CHIP_SELECT:
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if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_CS])
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u8g_SetPILevel_DUE(u8g, U8G_PI_CS, arg_val); //note: the st7920 has an active high chip select
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break;
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case U8G_COM_MSG_CHIP_SELECT:
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if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_CS])
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u8g_SetPILevel_DUE(u8g, U8G_PI_CS, arg_val); //note: the st7920 has an active high chip select
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break;
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case U8G_COM_MSG_WRITE_BYTE:
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case U8G_COM_MSG_WRITE_BYTE:
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u8g_com_DUE_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], arg_val);
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break;
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u8g_com_DUE_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], arg_val);
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break;
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case U8G_COM_MSG_WRITE_SEQ: {
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uint8_t *ptr = (uint8_t*) arg_ptr;
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while (arg_val > 0) {
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u8g_com_DUE_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
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arg_val--;
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}
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case U8G_COM_MSG_WRITE_SEQ: {
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uint8_t *ptr = (uint8_t*) arg_ptr;
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while (arg_val > 0) {
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u8g_com_DUE_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
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arg_val--;
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}
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break;
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}
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break;
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case U8G_COM_MSG_WRITE_SEQ_P: {
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uint8_t *ptr = (uint8_t*) arg_ptr;
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while (arg_val > 0) {
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u8g_com_DUE_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
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arg_val--;
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}
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case U8G_COM_MSG_WRITE_SEQ_P: {
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uint8_t *ptr = (uint8_t*) arg_ptr;
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while (arg_val > 0) {
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u8g_com_DUE_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
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arg_val--;
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}
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break;
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}
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return 1;
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}
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break;
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}
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return 1;
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}
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#pragma GCC reset_options
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