Merge pull request #463 from ADVANSEE/cc2538-ports-pins
cc2538: Clean up and improve port and pin definitions
This commit is contained in:
George Oikonomou
commit
17b2150081
5 changed files with 95 additions and 66 deletions
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@ -42,6 +42,15 @@
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#include "dev/ssi.h"
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#include "dev/gpio.h"
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#define SPI_CLK_PORT_BASE GPIO_PORT_TO_BASE(SPI_CLK_PORT)
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#define SPI_CLK_PIN_MASK GPIO_PIN_MASK(SPI_CLK_PIN)
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#define SPI_MOSI_PORT_BASE GPIO_PORT_TO_BASE(SPI_MOSI_PORT)
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#define SPI_MOSI_PIN_MASK GPIO_PIN_MASK(SPI_MOSI_PIN)
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#define SPI_MISO_PORT_BASE GPIO_PORT_TO_BASE(SPI_MISO_PORT)
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#define SPI_MISO_PIN_MASK GPIO_PIN_MASK(SPI_MISO_PIN)
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#define SPI_SEL_PORT_BASE GPIO_PORT_TO_BASE(SPI_SEL_PORT)
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#define SPI_SEL_PIN_MASK GPIO_PIN_MASK(SPI_SEL_PIN)
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/* Default: Motorola mode 3 with 8-bit data words */
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#ifndef SPI_CONF_PHASE
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#define SPI_CONF_PHASE SSI_CR0_SPH
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@ -61,10 +70,10 @@
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* \brief Initialize the SPI bus.
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*
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* This SPI init() function uses the following #defines to set the pins:
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* CC2538_SPI_CLK_PORT_NUM CC2538_SPI_CLK_PIN_NUM
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* CC2538_SPI_MOSI_PORT_NUM CC2538_SPI_MOSI_PIN_NUM
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* CC2538_SPI_MISO_PORT_NUM CC2538_SPI_MISO_PIN_NUM
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* CC2538_SPI_SEL_PORT_NUM CC2538_SPI_SEL_PIN_NUM
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* SPI_CLK_PORT SPI_CLK_PIN
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* SPI_MOSI_PORT SPI_MOSI_PIN
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* SPI_MISO_PORT SPI_MISO_PIN
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* SPI_SEL_PORT SPI_SEL_PIN
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*
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* This sets the mode to Motorola SPI with the following format options:
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* SPI_CONF_PHASE: 0 or SSI_CR0_SPH
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@ -83,22 +92,22 @@ spi_init(void)
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REG(SSI0_BASE + SSI_CC) = 1;
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/* Set the mux correctly to connect the SSI pins to the correct GPIO pins */
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ioc_set_sel(CC2538_SPI_CLK_PORT_NUM, CC2538_SPI_CLK_PIN_NUM, IOC_PXX_SEL_SSI0_CLKOUT);
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ioc_set_sel(CC2538_SPI_MOSI_PORT_NUM, CC2538_SPI_MOSI_PIN_NUM, IOC_PXX_SEL_SSI0_TXD);
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REG(IOC_SSIRXD_SSI0) = (CC2538_SPI_MISO_PORT_NUM * 8) + CC2538_SPI_MISO_PIN_NUM;
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ioc_set_sel(CC2538_SPI_SEL_PORT_NUM, CC2538_SPI_SEL_PIN_NUM, IOC_PXX_SEL_SSI0_FSSOUT);
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ioc_set_sel(SPI_CLK_PORT, SPI_CLK_PIN, IOC_PXX_SEL_SSI0_CLKOUT);
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ioc_set_sel(SPI_MOSI_PORT, SPI_MOSI_PIN, IOC_PXX_SEL_SSI0_TXD);
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REG(IOC_SSIRXD_SSI0) = (SPI_MISO_PORT * 8) + SPI_MISO_PIN;
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ioc_set_sel(SPI_SEL_PORT, SPI_SEL_PIN, IOC_PXX_SEL_SSI0_FSSOUT);
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/* Put all the SSI gpios into peripheral mode */
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GPIO_PERIPHERAL_CONTROL(GPIO_PORT_TO_BASE(CC2538_SPI_CLK_PORT_NUM), GPIO_PIN_MASK(CC2538_SPI_CLK_PIN_NUM));
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GPIO_PERIPHERAL_CONTROL(GPIO_PORT_TO_BASE(CC2538_SPI_MOSI_PORT_NUM), GPIO_PIN_MASK(CC2538_SPI_MOSI_PIN_NUM));
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GPIO_PERIPHERAL_CONTROL(GPIO_PORT_TO_BASE(CC2538_SPI_MISO_PORT_NUM), GPIO_PIN_MASK(CC2538_SPI_MISO_PIN_NUM));
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GPIO_PERIPHERAL_CONTROL(GPIO_PORT_TO_BASE(CC2538_SPI_SEL_PORT_NUM), GPIO_PIN_MASK(CC2538_SPI_SEL_PIN_NUM));
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GPIO_PERIPHERAL_CONTROL(SPI_CLK_PORT_BASE, SPI_CLK_PIN_MASK);
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GPIO_PERIPHERAL_CONTROL(SPI_MOSI_PORT_BASE, SPI_MOSI_PIN_MASK);
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GPIO_PERIPHERAL_CONTROL(SPI_MISO_PORT_BASE, SPI_MISO_PIN_MASK);
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GPIO_PERIPHERAL_CONTROL(SPI_SEL_PORT_BASE, SPI_SEL_PIN_MASK);
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/* Disable any pull ups or the like */
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ioc_set_over(CC2538_SPI_CLK_PORT_NUM, CC2538_SPI_CLK_PIN_NUM, IOC_OVERRIDE_DIS);
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ioc_set_over(CC2538_SPI_MOSI_PORT_NUM, CC2538_SPI_MOSI_PIN_NUM, IOC_OVERRIDE_DIS);
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ioc_set_over(CC2538_SPI_MISO_PORT_NUM, CC2538_SPI_MISO_PIN_NUM, IOC_OVERRIDE_DIS);
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ioc_set_over(CC2538_SPI_SEL_PORT_NUM, CC2538_SPI_SEL_PIN_NUM, IOC_OVERRIDE_DIS);
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ioc_set_over(SPI_CLK_PORT, SPI_CLK_PIN, IOC_OVERRIDE_DIS);
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ioc_set_over(SPI_MOSI_PORT, SPI_MOSI_PIN, IOC_OVERRIDE_DIS);
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ioc_set_over(SPI_MISO_PORT, SPI_MISO_PIN, IOC_OVERRIDE_DIS);
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ioc_set_over(SPI_SEL_PORT, SPI_SEL_PIN, IOC_OVERRIDE_DIS);
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/* Configure the clock */
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REG(SSI0_BASE + SSI_CPSR) = 2;
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@ -50,6 +50,18 @@
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static int (* input_handler)(unsigned char c);
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/*---------------------------------------------------------------------------*/
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#define UART_RX_PORT_BASE GPIO_PORT_TO_BASE(UART_RX_PORT)
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#define UART_RX_PIN_MASK GPIO_PIN_MASK(UART_RX_PIN)
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#define UART_TX_PORT_BASE GPIO_PORT_TO_BASE(UART_TX_PORT)
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#define UART_TX_PIN_MASK GPIO_PIN_MASK(UART_TX_PIN)
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#define UART_CTS_PORT_BASE GPIO_PORT_TO_BASE(UART_CTS_PORT)
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#define UART_CTS_PIN_MASK GPIO_PIN_MASK(UART_CTS_PIN)
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#define UART_RTS_PORT_BASE GPIO_PORT_TO_BASE(UART_RTS_PORT)
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#define UART_RTS_PIN_MASK GPIO_PIN_MASK(UART_RTS_PIN)
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/*---------------------------------------------------------------------------*/
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/*
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* Once we know what UART we're on, configure correct values to be written to
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* the correct registers
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@ -138,8 +150,8 @@ uart_init(void)
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ioc_set_over(UART_TX_PORT, UART_TX_PIN, IOC_OVERRIDE_OE);
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/* Set RX and TX pins to peripheral mode */
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GPIO_PERIPHERAL_CONTROL(GPIO_PORT_TO_BASE(UART_TX_PORT), GPIO_PIN_MASK(UART_TX_PIN));
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GPIO_PERIPHERAL_CONTROL(GPIO_PORT_TO_BASE(UART_RX_PORT), GPIO_PIN_MASK(UART_RX_PIN));
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GPIO_PERIPHERAL_CONTROL(UART_TX_PORT_BASE, UART_TX_PIN_MASK);
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GPIO_PERIPHERAL_CONTROL(UART_RX_PORT_BASE, UART_RX_PIN_MASK);
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/*
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* UART Interrupt Masks:
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@ -54,6 +54,13 @@
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#include <stdbool.h>
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#include <stdint.h>
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/*---------------------------------------------------------------------------*/
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#ifdef USB_PULLUP_PORT
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#define USB_PULLUP_PORT_BASE GPIO_PORT_TO_BASE(USB_PULLUP_PORT)
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#endif
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#ifdef USB_PULLUP_PIN
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#define USB_PULLUP_PIN_MASK GPIO_PIN_MASK(USB_PULLUP_PIN)
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#endif
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/*---------------------------------------------------------------------------*/
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/* EP max FIFO sizes without double buffering */
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#if CTRL_EP_SIZE > 32
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#error Control endpoint size too big
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@ -329,9 +336,11 @@ usb_arch_setup(void)
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/* Wait until USB PLL is stable */
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while(!(REG(USB_CTRL) & USB_CTRL_PLL_LOCKED));
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/* Enable pull-up on usb port */
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GPIO_SET_OUTPUT(USB_PULLUP_PORT, USB_PULLUP_PIN_MASK);
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GPIO_SET_PIN(USB_PULLUP_PORT, USB_PULLUP_PIN_MASK);
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/* Enable pull-up on usb port if driven by GPIO */
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#if defined(USB_PULLUP_PORT_BASE) && defined(USB_PULLUP_PIN_MASK)
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GPIO_SET_OUTPUT(USB_PULLUP_PORT_BASE, USB_PULLUP_PIN_MASK);
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GPIO_SET_PIN(USB_PULLUP_PORT_BASE, USB_PULLUP_PIN_MASK);
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#endif
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for(i = 0; i < USB_MAX_ENDPOINTS; i++) {
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usb_endpoints[i].flags = 0;
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@ -97,9 +97,8 @@
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*
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* The USB pullup is driven by PC0 and is shared with LED1
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*/
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#define USB_PULLUP_PORT GPIO_C_BASE
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#define USB_PULLUP_PORT GPIO_C_NUM
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#define USB_PULLUP_PIN 0
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#define USB_PULLUP_PIN_MASK GPIO_PIN_MASK(USB_PULLUP_PIN)
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name UART configuration
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@ -140,38 +139,28 @@
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* @{
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*/
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/** BUTTON_SELECT -> PA3 */
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#define BUTTON_SELECT_PORT_NO GPIO_A_NUM
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#define BUTTON_SELECT_PORT GPIO_A_NUM
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#define BUTTON_SELECT_PIN 3
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#define BUTTON_SELECT_PORT GPIO_A_BASE
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#define BUTTON_SELECT_PIN_MASK GPIO_PIN_MASK(BUTTON_SELECT_PIN)
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#define BUTTON_SELECT_VECTOR NVIC_INT_GPIO_PORT_A
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/** BUTTON_LEFT -> PC4 */
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#define BUTTON_LEFT_PORT_NO GPIO_C_NUM
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#define BUTTON_LEFT_PORT GPIO_C_NUM
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#define BUTTON_LEFT_PIN 4
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#define BUTTON_LEFT_PORT GPIO_C_BASE
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#define BUTTON_LEFT_PIN_MASK GPIO_PIN_MASK(BUTTON_LEFT_PIN)
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#define BUTTON_LEFT_VECTOR NVIC_INT_GPIO_PORT_C
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/** BUTTON_RIGHT -> PC5 */
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#define BUTTON_RIGHT_PORT_NO GPIO_C_NUM
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#define BUTTON_RIGHT_PORT GPIO_C_NUM
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#define BUTTON_RIGHT_PIN 5
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#define BUTTON_RIGHT_PORT GPIO_C_BASE
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#define BUTTON_RIGHT_PIN_MASK GPIO_PIN_MASK(BUTTON_RIGHT_PIN)
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#define BUTTON_RIGHT_VECTOR NVIC_INT_GPIO_PORT_C
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/** BUTTON_UP -> PC6 */
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#define BUTTON_UP_PORT_NO GPIO_C_NUM
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#define BUTTON_UP_PORT GPIO_C_NUM
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#define BUTTON_UP_PIN 6
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#define BUTTON_UP_PORT GPIO_C_BASE
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#define BUTTON_UP_PIN_MASK GPIO_PIN_MASK(BUTTON_UP_PIN)
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#define BUTTON_UP_VECTOR NVIC_INT_GPIO_PORT_C
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/** BUTTON_DOWN -> PC7 */
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#define BUTTON_DOWN_PORT_NO GPIO_C_NUM
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#define BUTTON_DOWN_PORT GPIO_C_NUM
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#define BUTTON_DOWN_PIN 7
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#define BUTTON_DOWN_PORT GPIO_C_BASE
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#define BUTTON_DOWN_PIN_MASK GPIO_PIN_MASK(BUTTON_DOWN_PIN)
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#define BUTTON_DOWN_VECTOR NVIC_INT_GPIO_PORT_C
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/* Notify various examples that we have Buttons */
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@ -184,14 +173,14 @@
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* These values configure which CC2538 pins to use for the SPI lines.
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* @{
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*/
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#define CC2538_SPI_CLK_PORT_NUM GPIO_A_NUM
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#define CC2538_SPI_CLK_PIN_NUM 2
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#define CC2538_SPI_MOSI_PORT_NUM GPIO_A_NUM
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#define CC2538_SPI_MOSI_PIN_NUM 4
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#define CC2538_SPI_MISO_PORT_NUM GPIO_A_NUM
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#define CC2538_SPI_MISO_PIN_NUM 5
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#define CC2538_SPI_SEL_PORT_NUM GPIO_B_NUM
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#define CC2538_SPI_SEL_PIN_NUM 5
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#define SPI_CLK_PORT GPIO_A_NUM
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#define SPI_CLK_PIN 2
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#define SPI_MOSI_PORT GPIO_A_NUM
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#define SPI_MOSI_PIN 4
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#define SPI_MISO_PORT GPIO_A_NUM
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#define SPI_MISO_PIN 5
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#define SPI_SEL_PORT GPIO_B_NUM
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#define SPI_SEL_PIN 5
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/** @} */
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/*---------------------------------------------------------------------------*/
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/**
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@ -45,6 +45,21 @@
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#include <stdint.h>
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#include <string.h>
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#define BUTTON_SELECT_PORT_BASE GPIO_PORT_TO_BASE(BUTTON_SELECT_PORT)
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#define BUTTON_SELECT_PIN_MASK GPIO_PIN_MASK(BUTTON_SELECT_PIN)
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#define BUTTON_LEFT_PORT_BASE GPIO_PORT_TO_BASE(BUTTON_LEFT_PORT)
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#define BUTTON_LEFT_PIN_MASK GPIO_PIN_MASK(BUTTON_LEFT_PIN)
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#define BUTTON_RIGHT_PORT_BASE GPIO_PORT_TO_BASE(BUTTON_RIGHT_PORT)
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#define BUTTON_RIGHT_PIN_MASK GPIO_PIN_MASK(BUTTON_RIGHT_PIN)
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#define BUTTON_UP_PORT_BASE GPIO_PORT_TO_BASE(BUTTON_UP_PORT)
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#define BUTTON_UP_PIN_MASK GPIO_PIN_MASK(BUTTON_UP_PIN)
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#define BUTTON_DOWN_PORT_BASE GPIO_PORT_TO_BASE(BUTTON_DOWN_PORT)
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#define BUTTON_DOWN_PIN_MASK GPIO_PIN_MASK(BUTTON_DOWN_PIN)
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/*---------------------------------------------------------------------------*/
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static struct timer debouncetimer;
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/*---------------------------------------------------------------------------*/
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/**
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@ -124,14 +139,13 @@ btn_callback(uint8_t port, uint8_t pin)
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static int
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config_select(int type, int value)
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{
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config(BUTTON_SELECT_PORT, BUTTON_SELECT_PIN_MASK);
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config(BUTTON_SELECT_PORT_BASE, BUTTON_SELECT_PIN_MASK);
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ioc_set_over(BUTTON_SELECT_PORT_NO, BUTTON_SELECT_PIN, IOC_OVERRIDE_PUE);
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ioc_set_over(BUTTON_SELECT_PORT, BUTTON_SELECT_PIN, IOC_OVERRIDE_PUE);
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nvic_interrupt_enable(BUTTON_SELECT_VECTOR);
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gpio_register_callback(btn_callback, BUTTON_SELECT_PORT_NO,
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BUTTON_SELECT_PIN);
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gpio_register_callback(btn_callback, BUTTON_SELECT_PORT, BUTTON_SELECT_PIN);
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return 1;
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}
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/*---------------------------------------------------------------------------*/
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@ -149,14 +163,13 @@ config_select(int type, int value)
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static int
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config_left(int type, int value)
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{
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config(BUTTON_LEFT_PORT, BUTTON_LEFT_PIN_MASK);
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config(BUTTON_LEFT_PORT_BASE, BUTTON_LEFT_PIN_MASK);
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ioc_set_over(BUTTON_LEFT_PORT_NO, BUTTON_LEFT_PIN, IOC_OVERRIDE_PUE);
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ioc_set_over(BUTTON_LEFT_PORT, BUTTON_LEFT_PIN, IOC_OVERRIDE_PUE);
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nvic_interrupt_enable(BUTTON_LEFT_VECTOR);
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gpio_register_callback(btn_callback, BUTTON_LEFT_PORT_NO,
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BUTTON_LEFT_PIN);
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gpio_register_callback(btn_callback, BUTTON_LEFT_PORT, BUTTON_LEFT_PIN);
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return 1;
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}
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/*---------------------------------------------------------------------------*/
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@ -174,14 +187,13 @@ config_left(int type, int value)
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static int
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config_right(int type, int value)
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{
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config(BUTTON_RIGHT_PORT, BUTTON_RIGHT_PIN_MASK);
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config(BUTTON_RIGHT_PORT_BASE, BUTTON_RIGHT_PIN_MASK);
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ioc_set_over(BUTTON_RIGHT_PORT_NO, BUTTON_RIGHT_PIN, IOC_OVERRIDE_PUE);
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ioc_set_over(BUTTON_RIGHT_PORT, BUTTON_RIGHT_PIN, IOC_OVERRIDE_PUE);
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nvic_interrupt_enable(BUTTON_RIGHT_VECTOR);
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gpio_register_callback(btn_callback, BUTTON_RIGHT_PORT_NO,
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BUTTON_RIGHT_PIN);
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gpio_register_callback(btn_callback, BUTTON_RIGHT_PORT, BUTTON_RIGHT_PIN);
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return 1;
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}
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/*---------------------------------------------------------------------------*/
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@ -199,14 +211,13 @@ config_right(int type, int value)
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static int
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config_up(int type, int value)
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{
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config(BUTTON_UP_PORT, BUTTON_UP_PIN_MASK);
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config(BUTTON_UP_PORT_BASE, BUTTON_UP_PIN_MASK);
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ioc_set_over(BUTTON_UP_PORT_NO, BUTTON_UP_PIN, IOC_OVERRIDE_PUE);
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ioc_set_over(BUTTON_UP_PORT, BUTTON_UP_PIN, IOC_OVERRIDE_PUE);
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nvic_interrupt_enable(BUTTON_UP_VECTOR);
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gpio_register_callback(btn_callback, BUTTON_UP_PORT_NO,
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BUTTON_UP_PIN);
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gpio_register_callback(btn_callback, BUTTON_UP_PORT, BUTTON_UP_PIN);
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return 1;
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}
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/*---------------------------------------------------------------------------*/
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@ -224,14 +235,13 @@ config_up(int type, int value)
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static int
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config_down(int type, int value)
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{
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config(BUTTON_DOWN_PORT, BUTTON_DOWN_PIN_MASK);
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config(BUTTON_DOWN_PORT_BASE, BUTTON_DOWN_PIN_MASK);
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ioc_set_over(BUTTON_DOWN_PORT_NO, BUTTON_DOWN_PIN, IOC_OVERRIDE_PUE);
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ioc_set_over(BUTTON_DOWN_PORT, BUTTON_DOWN_PIN, IOC_OVERRIDE_PUE);
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nvic_interrupt_enable(BUTTON_DOWN_VECTOR);
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gpio_register_callback(btn_callback, BUTTON_DOWN_PORT_NO,
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BUTTON_DOWN_PIN);
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gpio_register_callback(btn_callback, BUTTON_DOWN_PORT, BUTTON_DOWN_PIN);
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return 1;
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}
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/*---------------------------------------------------------------------------*/
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