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-rw-r--r--stm/cc3k/pybcc3k.c204
1 files changed, 0 insertions, 204 deletions
diff --git a/stm/cc3k/pybcc3k.c b/stm/cc3k/pybcc3k.c
deleted file mode 100644
index 9b7113869d..0000000000
--- a/stm/cc3k/pybcc3k.c
+++ /dev/null
@@ -1,204 +0,0 @@
-#include <stdint.h>
-
-#include "stm32f4xx_rcc.h"
-#include <stm32f4xx_syscfg.h>
-#include "stm32f4xx_gpio.h"
-#include <stm32f4xx_exti.h>
-#include <stm_misc.h>
-#include "stm32f4xx_spi.h"
-
-#include "misc.h"
-#include "systick.h"
-
-#include "ccdebug.h"
-#include "pybcc3k.h"
-
-// IRQ on PA14, input, pulled up, active low
-// EN on PC7, output, active high
-// CS on PC6, output, active low
-// SPI2 on PB15=MOSI, PB14=MISO, PB13=SCK
-// SCK for CC3000: max 16MHz, low when idle, data sampled on falling edge
-
-// TODO this could be really wrong wrt calibration
-void pyb_delay_us(uint32_t usec) {
- volatile uint32_t count = 0;
- const uint32_t utime = (160 * usec / 5);
- do {
- if (++count > utime) {
- return;
- }
- } while (1);
-}
-
-void pyb_cc3000_set_en(int val) {
- DEBUG_printf("pyb_cc3000_set_en val=%d\n", val);
- if (val) {
- GPIOC->BSRRL = GPIO_Pin_7; // set pin high
- } else {
- GPIOC->BSRRH = GPIO_Pin_7; // set pin low
- }
-}
-
-void pyb_cc3000_set_cs(int val) {
- DEBUG_printf("pyb_cc3000_set_cs val=%d\n", val);
- if (val) {
- GPIOC->BSRRL = GPIO_Pin_6; // set pin high
- } else {
- GPIOC->BSRRH = GPIO_Pin_6; // set pin low
- }
-}
-
-int pyb_cc3000_get_irq(void) {
- if ((GPIOA->IDR & GPIO_Pin_14) == 0) {
- return 0;
- } else {
- return 1;
- }
-}
-
-uint32_t exti14_enabled = 0; // TODO hack; do it properly!
-uint32_t exti14_missed = 0; // TODO hack; do it properly!
-
-void pyb_cc3000_enable_irq(void) {
- DEBUG_printf("pyb_cc3000_enable_irq: en=%lu miss=%lu\n", exti14_enabled, exti14_missed);
- if (exti14_missed) {
- /* doesn't look like this is needed
- DEBUG_printf("pyb_cc3000_enable_irq: handling missed IRQ\n");
- // TODO hack if we have a pending IRQ
- extern void SpiIntGPIOHandler(void);
- SpiIntGPIOHandler();
- */
- exti14_missed = 0;
- }
- exti14_enabled = 1;
-}
-
-void pyb_cc3000_disable_irq(void) {
- DEBUG_printf("pyb_cc3000_disable_irq: en=%lu miss=%lu\n", exti14_enabled, exti14_missed);
- exti14_enabled = 0;
-}
-
-void pyb_cc3000_pause_spi(void) {
- DEBUG_printf("pyb_cc3000_pause_spi\n");
- exti14_enabled = 0;
-}
-
-void pyb_cc3000_resume_spi(void) {
- DEBUG_printf("pyb_cc3000_resume_spi\n");
- exti14_enabled = 1;
-}
-
-static void EXTILine14_Config(void) {
- /* Enable SYSCFG clock */
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
-
- /* Configure PA14 pin as pulled-up input */
- GPIO_InitTypeDef GPIO_InitStructure;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
- GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14;
- GPIO_Init(GPIOA, &GPIO_InitStructure);
-
- /* Connect EXTI Line14 to PA14 pin */
- SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource14);
-
- /* Configure EXTI Line14, falling edge */
- EXTI_InitTypeDef EXTI_InitStructure;
- EXTI_InitStructure.EXTI_Line = EXTI_Line14;
- EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
- EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
- EXTI_InitStructure.EXTI_LineCmd = ENABLE;
- EXTI_Init(&EXTI_InitStructure);
-
- /* Enable and set EXTI15_10 Interrupt to the lowest priority */
- NVIC_InitTypeDef NVIC_InitStructure;
- NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;
- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;
- NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;
- NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
- NVIC_Init(&NVIC_InitStructure);
-}
-
-void pyb_cc3000_spi_init(void) {
- DEBUG_printf("pyb_cc3000_spi_init\n");
-
- // enable SPI clock
- RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
-
- // GPIO clocks should already be enabled
-
- /*!< SPI pins configuration *************************************************/
-
- /*!< Connect SPI pins to AF5 */
- GPIO_PinAFConfig(GPIOB, GPIO_PinSource13, GPIO_AF_SPI2);
- GPIO_PinAFConfig(GPIOB, GPIO_PinSource14, GPIO_AF_SPI2);
- GPIO_PinAFConfig(GPIOB, GPIO_PinSource15, GPIO_AF_SPI2);
-
- GPIO_InitTypeDef GPIO_InitStructure;
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
- GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
- GPIO_Init(GPIOB, &GPIO_InitStructure);
-
- /*
- inf.baudRate = 100000; // FIXME - just slow for debug
- inf.spiMode = SPIF_SPI_MODE_1; // Mode 1 CPOL= 0 CPHA= 1
- */
-
- /*!< SPI configuration */
- SPI_InitTypeDef SPI_InitStructure;
- SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
- SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
- SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b; // should be correct
- SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low; // clock is low when idle
- SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge; // data latched on second edge, which is falling edge for low-idle
- SPI_InitStructure.SPI_NSS = SPI_NSS_Soft; // software control
- SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8; // clock freq = f_PCLK / this_prescale_value
- SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB; // should be correct
- SPI_InitStructure.SPI_CRCPolynomial = 7; // ?
- SPI_Init(SPI2, &SPI_InitStructure);
-
- /*!< Enable the SPI */
- SPI_Cmd(SPI2, ENABLE);
-
- /*
- // WLAN CS, EN and WALN IRQ Configuration
- jshSetPinStateIsManual(WLAN_CS_PIN, false);
- jshPinOutput(WLAN_CS_PIN, 1); // de-assert CS
- jshSetPinStateIsManual(WLAN_EN_PIN, false);
- jshPinOutput(WLAN_EN_PIN, 0); // disable WLAN
- jshSetPinStateIsManual(WLAN_IRQ_PIN, true);
- jshPinSetState(WLAN_IRQ_PIN, JSHPINSTATE_GPIO_IN_PULLUP); // flip into read mode with pullup
- */
- // configure wlan CS and EN pins
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_25MHz;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
- GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
- GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
- GPIO_Init(GPIOC, &GPIO_InitStructure);
- pyb_cc3000_set_cs(1); // de-assert CS
- pyb_cc3000_set_en(0); // disable wlan
-
- // configure EXTI on A14
- EXTILine14_Config();
-
- // wait a little (ensure that WLAN takes effect)
- sys_tick_delay_ms(500); // force a 500ms delay! FIXME
-}
-
-uint8_t pyb_cc3000_spi_send(uint8_t val) {
- /*!< Loop while DR register in not emplty */
- while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
-
- /*!< Send byte through the SPI1 peripheral */
- SPI_I2S_SendData(SPI2, val);
-
- /*!< Wait to receive a byte */
- while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_RXNE) == RESET);
-
- /*!< Return the byte read from the SPI bus */
- return SPI_I2S_ReceiveData(SPI2);
-}
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