mirror of
https://github.com/bluekitchen/btstack.git
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apollo2-em9304: port for em9304 shield on apollo2 evb
This commit is contained in:
Matthias Ringwald
parent
161a556908
commit
905e80ca54
38
port/apollo2-em9304/btstack_config.h
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38
port/apollo2-em9304/btstack_config.h
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@ -0,0 +1,38 @@
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//
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// btstack_config.h for EM9304 DVK
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//
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#ifndef __BTSTACK_CONFIG
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#define __BTSTACK_CONFIG
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// Port related features
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#define HAVE_EMBEDDED_TIME_MS
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// BTstack features that can be enabled
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#define ENABLE_BLE
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#define ENABLE_LE_PERIPHERAL
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#define ENABLE_LE_CENTRAL
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#define ENABLE_LE_DATA_LENGTH_EXTENSION
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#define ENABLE_LOG_INFO
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#define ENABLE_LOG_ERROR
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// BTstack configuration. buffers, sizes, ...
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#define HCI_ACL_PAYLOAD_SIZE 100
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#define MAX_NR_WHITELIST_ENTRIES 1
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#define MAX_NR_HCI_CONNECTIONS 1
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#define MAX_NR_SM_LOOKUP_ENTRIES 3
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#define MAX_NR_L2CAP_SERVICES 1
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#define MAX_NR_L2CAP_CHANNELS 1
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#define MAX_NR_GATT_CLIENTS 1
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#define MAX_NR_RFCOMM_MULTIPLEXERS 0
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#define MAX_NR_RFCOMM_SERVICES 0
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#define MAX_NR_RFCOMM_CHANNELS 0
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#define MAX_NR_HFP_CONNECTIONS 0
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#define MAX_NR_BTSTACK_LINK_KEY_DB_MEMORY_ENTRIES 0
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#define MAX_NR_BNEP_SERVICES 0
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#define MAX_NR_BNEP_CHANNELS 0
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#define MAX_NR_SERVICE_RECORD_ITEMS 1
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#define MAX_NR_LE_DEVICE_DB_ENTRIES 1
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#endif
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508
port/apollo2-em9304/btstack_port.c
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508
port/apollo2-em9304/btstack_port.c
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@ -0,0 +1,508 @@
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//
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// BTstack port for Apolle 2 EVB with EM9304 shield
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//
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#include "am_mcu_apollo.h"
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#include "am_bsp.h"
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#include "am_util.h"
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#include "am_devices_em9304.h"
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//*****************************************************************************
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//
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// Insert compiler version at compile time.
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//
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//*****************************************************************************
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#define STRINGIZE_VAL(n) STRINGIZE_VAL2(n)
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#define STRINGIZE_VAL2(n) #n
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#ifdef __GNUC__
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#define COMPILER_VERSION ("GCC " __VERSION__)
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#elif defined(__ARMCC_VERSION)
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#define COMPILER_VERSION ("ARMCC " STRINGIZE_VAL(__ARMCC_VERSION))
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#elif defined(__KEIL__)
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#define COMPILER_VERSION "KEIL_CARM " STRINGIZE_VAL(__CA__)
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#elif defined(__IAR_SYSTEMS_ICC__)
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#define COMPILER_VERSION __VERSION__
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#else
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#define COMPILER_VERSION "Compiler unknown"
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#endif
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//*****************************************************************************
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//
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// IOM SPI Configuration for EM9304
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//
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//*****************************************************************************
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const am_hal_iom_config_t g_sEm9304IOMConfigSPI =
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{
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.ui32ClockFrequency = AM_HAL_IOM_8MHZ,
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.ui32InterfaceMode = AM_HAL_IOM_SPIMODE,
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.ui8WriteThreshold = 20,
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.ui8ReadThreshold = 20,
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.bSPHA = 0,
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.bSPOL = 0,
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};
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//*****************************************************************************
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//
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// UART configuration settings.
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//
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//*****************************************************************************
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am_hal_uart_config_t g_sUartConfig =
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{
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.ui32BaudRate = 115200,
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.ui32DataBits = AM_HAL_UART_DATA_BITS_8,
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.bTwoStopBits = false,
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.ui32Parity = AM_HAL_UART_PARITY_NONE,
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.ui32FlowCtrl = AM_HAL_UART_FLOW_CTRL_NONE,
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};
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//*****************************************************************************
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//
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// Initialize the UART
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//
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//*****************************************************************************
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void
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uart_init(uint32_t ui32Module)
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{
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//
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// Make sure the UART RX and TX pins are enabled.
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//
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am_bsp_pin_enable(COM_UART_TX);
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am_bsp_pin_enable(COM_UART_RX);
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//
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// Power on the selected UART
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//
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am_hal_uart_pwrctrl_enable(ui32Module);
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//
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// Start the UART interface, apply the desired configuration settings, and
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// enable the FIFOs.
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//
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am_hal_uart_clock_enable(ui32Module);
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//
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// Disable the UART before configuring it.
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//
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am_hal_uart_disable(ui32Module);
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//
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// Configure the UART.
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//
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am_hal_uart_config(ui32Module, &g_sUartConfig);
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//
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// Enable the UART FIFO.
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//
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am_hal_uart_fifo_config(ui32Module, AM_HAL_UART_TX_FIFO_1_2 | AM_HAL_UART_RX_FIFO_1_2);
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//
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// Enable the UART.
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//
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am_hal_uart_enable(ui32Module);
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}
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//*****************************************************************************
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//
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// Disable the UART
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//
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//*****************************************************************************
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void
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uart_disable(uint32_t ui32Module)
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{
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//
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// Clear all interrupts before sleeping as having a pending UART interrupt
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// burns power.
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//
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am_hal_uart_int_clear(ui32Module, 0xFFFFFFFF);
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//
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// Disable the UART.
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//
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am_hal_uart_disable(ui32Module);
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//
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// Disable the UART pins.
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//
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am_bsp_pin_disable(COM_UART_TX);
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am_bsp_pin_disable(COM_UART_RX);
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//
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// Disable the UART clock.
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//
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am_hal_uart_clock_disable(ui32Module);
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}
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//*****************************************************************************
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//
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// Initialize the EM9304 BLE Controller
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//
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//*****************************************************************************
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void
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am_devices_em9304_spi_init(uint32_t ui32Module, const am_hal_iom_config_t *psIomConfig)
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{
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if ( AM_REGn(IOMSTR, ui32Module, CFG) & AM_REG_IOMSTR_CFG_IFCEN_M )
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{
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return;
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}
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#if defined(AM_PART_APOLLO2)
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am_hal_iom_pwrctrl_enable(ui32Module);
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#endif
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//
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// Setup the pins for SPI mode.
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//
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am_bsp_iom_spi_pins_enable(ui32Module);
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//
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// Set the required configuration settings for the IOM.
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//
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am_hal_iom_config(ui32Module, psIomConfig);
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// Enable spi
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am_hal_iom_enable(ui32Module);
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}
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void
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configure_em9304_pins(void)
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{
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am_bsp_pin_enable(EM9304_CS);
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am_bsp_pin_enable(EM9304_INT);
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am_hal_gpio_out_bit_set(AM_BSP_GPIO_EM9304_CS);
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am_hal_gpio_int_polarity_bit_set(AM_BSP_GPIO_EM9304_INT, AM_HAL_GPIO_RISING);
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am_hal_gpio_int_clear(AM_HAL_GPIO_BIT(AM_BSP_GPIO_EM9304_INT));
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am_hal_gpio_int_enable(AM_HAL_GPIO_BIT(AM_BSP_GPIO_EM9304_INT));
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}
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void
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em9304_init(void)
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{
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//
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// Assert RESET to the Telink device.
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//
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am_hal_gpio_pin_config(AM_BSP_GPIO_EM9304_RESET, AM_HAL_GPIO_OUTPUT);
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am_hal_gpio_out_bit_clear(AM_BSP_GPIO_EM9304_RESET);
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//
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// Setup SPI interface for EM9304
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//
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configure_em9304_pins();
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am_devices_em9304_spi_init(AM_BSP_EM9304_IOM, &g_sEm9304IOMConfigSPI);
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//
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// Delay for 20ms to make sure the em device gets ready for commands.
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//
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am_util_delay_ms(5);
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//
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// Enable the IOM and GPIO interrupt handlers.
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//
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am_hal_gpio_out_bit_set(AM_BSP_GPIO_EM9304_RESET);
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am_util_delay_ms(20);
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}
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// hal_cpu.h implementation
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#include "hal_cpu.h"
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void hal_cpu_disable_irqs(void){
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am_hal_interrupt_master_disable();
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}
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void hal_cpu_enable_irqs(void){
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am_hal_interrupt_master_enable();
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}
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void hal_cpu_enable_irqs_and_sleep(void){
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am_hal_interrupt_master_enable();
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__asm__("wfe"); // go to sleep if event flag isn't set. if set, just clear it. IRQs set event flag
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}
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// hal_time_ms.h
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#include "hal_time_ms.h"
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uint32_t hal_time_ms(void){
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return am_hal_systick_count();
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}
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/**
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* Use USART_CONSOLE as a console.
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* This is a syscall for newlib
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* @param file
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* @param ptr
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* @param len
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* @return
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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int _write(int file, char *ptr, int len);
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int _write(int file, char *ptr, int len){
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#if 1
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uint8_t cr = '\r';
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int i;
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if (file == STDOUT_FILENO || file == STDERR_FILENO) {
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for (i = 0; i < len; i++) {
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if (ptr[i] == '\n') {
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am_hal_uart_char_transmit_polled( AM_BSP_UART_PRINT_INST, cr );
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}
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am_hal_uart_char_transmit_polled( AM_BSP_UART_PRINT_INST, ptr[i]);
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}
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return i;
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}
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errno = EIO;
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return -1;
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#else
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return len;
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#endif
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}
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int _read(int file, char * ptr, int len){
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(void)file;
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(void)ptr;
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(void)len;
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return -1;
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}
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int _close(int file){
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(void)file;
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return -1;
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}
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int _isatty(int file){
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(void)file;
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return -1;
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}
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int _lseek(int file){
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(void)file;
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return -1;
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}
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int _fstat(int file){
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(void)file;
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return -1;
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}
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void * _sbrk(intptr_t increment){
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return (void*) -1;
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}
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// hal_em9304_spi.h
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#include "hal_em9304_spi.h"
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static void (*hal_em9304_spi_transfer_done_callback)(void);
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static void (*hal_em9304_spi_ready_callback)(void);
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#if (0 == AM_BSP_EM9304_IOM)
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void
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am_iomaster0_isr(void)
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{
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uint32_t ui32IntStatus;
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//
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// Read and clear the interrupt status.
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//
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ui32IntStatus = am_hal_iom_int_status_get(0, false);
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am_hal_iom_int_clear(0, ui32IntStatus);
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//
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// Service FIFO interrupts as necessary, and call IOM callbacks as
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// transfers are completed.
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//
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am_hal_iom_int_service(0, ui32IntStatus);
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}
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#endif
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#if defined(AM_PART_APOLLO2)
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#if (5 == AM_BSP_EM9304_IOM)
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void
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am_iomaster5_isr(void)
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{
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uint32_t ui32IntStatus;
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//
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// Read and clear the interrupt status.
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//
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ui32IntStatus = am_hal_iom_int_status_get(5, false);
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am_hal_iom_int_clear(5, ui32IntStatus);
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//
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// Service FIFO interrupts as necessary, and call IOM callbacks as
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// transfers are completed.
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//
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am_hal_iom_int_service(5, ui32IntStatus);
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}
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#endif
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#endif
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void
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am_gpio_isr(void)
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{
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uint64_t ui64Status;
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//
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// Check and clear the GPIO interrupt status
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//
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ui64Status = am_hal_gpio_int_status_get(true);
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am_hal_gpio_int_clear(ui64Status);
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//
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// Check to see if this was a wakeup event from the BLE radio.
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//
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if ( ui64Status & AM_HAL_GPIO_BIT(AM_BSP_GPIO_EM9304_INT) )
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{
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if (hal_em9304_spi_ready_callback){
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(*hal_em9304_spi_ready_callback)();
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}
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}
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}
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void hal_em9304_spi_enable_ready_interrupt(void){
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am_hal_gpio_int_enable(AM_HAL_GPIO_BIT(AM_BSP_GPIO_EM9304_INT));
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}
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void hal_em9304_spi_disable_ready_interrupt(void){
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am_hal_gpio_int_disable(AM_HAL_GPIO_BIT(AM_BSP_GPIO_EM9304_INT));
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}
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void hal_em9304_spi_set_ready_callback(void (*done)(void)){
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hal_em9304_spi_ready_callback = done;
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}
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int hal_em9304_spi_get_ready(void){
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return am_hal_gpio_input_read() & AM_HAL_GPIO_BIT(AM_BSP_GPIO_EM9304_INT);
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}
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void hal_em9304_spi_init(void){
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hal_em9304_spi_disable_ready_interrupt();
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}
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void hal_em9304_spi_deinit(void){
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hal_em9304_spi_disable_ready_interrupt();
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}
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void hal_em9304_spi_set_transfer_done_callback(void (*done)(void)){
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hal_em9304_spi_transfer_done_callback = done;
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}
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void hal_em9304_spi_set_chip_select(int enable){
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if (enable){
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am_hal_gpio_out_bit_clear(AM_BSP_GPIO_EM9304_CS);
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} else {
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am_hal_gpio_out_bit_set(AM_BSP_GPIO_EM9304_CS);
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}
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}
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void hal_em9304_spi_transceive(const uint8_t * tx_data, uint8_t * rx_data, uint16_t len){
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// TODO: handle tx_data/rx_data not aligned
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// TODO: support non-blocking full duplex
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uint32_t ui32ChipSelect = 0;
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// TODO: Use Full Duplex with Interrupt callback
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// NOTE: Full Duplex only supported on Apollo2
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// NOTE: Enabling Full Duplex causes am_hal_iom_spi_write_nq to block (as bytes ready returns number of bytes written)
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// AM_REGn(IOMSTR, ui32Module, CFG) |= AM_REG_IOMSTR_CFG_FULLDUP(1);
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am_hal_iom_spi_fullduplex_nq(AM_BSP_EM9304_IOM, ui32ChipSelect, (uint32_t *) tx_data, (uint32_t *) rx_data, len, AM_HAL_IOM_RAW);
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(*hal_em9304_spi_transfer_done_callback)();
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return;
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}
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void hal_em9304_spi_transmit(const uint8_t * tx_data, uint16_t len){
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// TODO: handle tx_data/rx_data not aligned
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uint32_t ui32ChipSelect = 0;
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am_hal_iom_spi_write_nb(AM_BSP_EM9304_IOM, ui32ChipSelect, (uint32_t *) tx_data, len, AM_HAL_IOM_RAW, hal_em9304_spi_transfer_done_callback);
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}
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void hal_em9304_spi_receive(uint8_t * rx_data, uint16_t len){
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// TODO: handle tx_data/rx_data not aligned
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// TODO: support non-blocking full duplex
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uint32_t ui32ChipSelect = 0;
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am_hal_iom_spi_read_nb(AM_BSP_EM9304_IOM, ui32ChipSelect, (uint32_t *) rx_data, len, AM_HAL_IOM_RAW, hal_em9304_spi_transfer_done_callback);
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}
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int hal_em9304_spi_get_fullduplex_support(void){
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return 0;
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}
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//*****************************************************************************
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//
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// Main
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//
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//*****************************************************************************
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// EM 9304 SPI Master HCI Implementation
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const uint8_t hci_reset_2[] = { 0x01, 0x03, 0x0c, 0x00 };
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#include "btstack_run_loop.h"
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#include "btstack_run_loop_embedded.h"
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#include "btstack_memory.h"
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#include "hci_dump.h"
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int btstack_main(int argc, const char * argv[]);
|
||||
int main(void)
|
||||
{
|
||||
//
|
||||
// Set the clock frequency.
|
||||
//
|
||||
am_hal_clkgen_sysclk_select(AM_HAL_CLKGEN_SYSCLK_MAX);
|
||||
|
||||
//
|
||||
// Set the default cache configuration
|
||||
//
|
||||
am_hal_cachectrl_enable(&am_hal_cachectrl_defaults);
|
||||
|
||||
//
|
||||
// Configure the board for low power operation.
|
||||
//
|
||||
am_bsp_low_power_init();
|
||||
|
||||
//
|
||||
// Initialize the printf interface for UART output.
|
||||
//
|
||||
am_util_stdio_printf_init((am_util_stdio_print_char_t)am_bsp_uart_string_print);
|
||||
|
||||
//
|
||||
// Configure and enable the UART.
|
||||
//
|
||||
uart_init(AM_BSP_UART_PRINT_INST);
|
||||
|
||||
//
|
||||
// Reboot and configure em9304.
|
||||
//
|
||||
em9304_init();
|
||||
|
||||
am_hal_interrupt_enable(AM_HAL_INTERRUPT_GPIO);
|
||||
|
||||
//
|
||||
// Enable IOM SPI interrupts.
|
||||
//
|
||||
am_hal_iom_int_clear(AM_BSP_EM9304_IOM, AM_HAL_IOM_INT_CMDCMP | AM_HAL_IOM_INT_THR);
|
||||
am_hal_iom_int_enable(AM_BSP_EM9304_IOM, AM_HAL_IOM_INT_CMDCMP | AM_HAL_IOM_INT_THR);
|
||||
|
||||
#if (0 == AM_BSP_EM9304_IOM)
|
||||
am_hal_interrupt_enable(AM_HAL_INTERRUPT_IOMASTER0);
|
||||
#elif (5 == AM_BSP_EM9304_IOM)
|
||||
am_hal_interrupt_enable(AM_HAL_INTERRUPT_IOMASTER5);
|
||||
#endif
|
||||
|
||||
// start with BTstack init - especially configure HCI Transport
|
||||
btstack_memory_init();
|
||||
btstack_run_loop_init(btstack_run_loop_embedded_get_instance());
|
||||
|
||||
// init HCI
|
||||
hci_init(hci_transport_em9304_spi_instance(btstack_em9304_spi_embedded_instance()), NULL);
|
||||
hci_dump_open( NULL, HCI_DUMP_STDOUT );
|
||||
|
||||
// hand over control to btstack_main()..
|
||||
|
||||
// turn on!
|
||||
// hci_power_control(HCI_POWER_ON);
|
||||
btstack_main(0, NULL);
|
||||
|
||||
btstack_run_loop_execute();
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user