diff options
Diffstat (limited to 'platform/ext/target/arm/musca_b1/sse_200/CMSIS_Driver/Driver_USART.c')
-rw-r--r-- | platform/ext/target/arm/musca_b1/sse_200/CMSIS_Driver/Driver_USART.c | 417 |
1 files changed, 417 insertions, 0 deletions
diff --git a/platform/ext/target/arm/musca_b1/sse_200/CMSIS_Driver/Driver_USART.c b/platform/ext/target/arm/musca_b1/sse_200/CMSIS_Driver/Driver_USART.c new file mode 100644 index 0000000000..fe25126b78 --- /dev/null +++ b/platform/ext/target/arm/musca_b1/sse_200/CMSIS_Driver/Driver_USART.c @@ -0,0 +1,417 @@ +/* + * Copyright (c) 2013-2019 Arm Limited. All rights reserved. + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the License); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an AS IS BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "Driver_USART.h" + +#include "cmsis_driver_config.h" +#include "RTE_Device.h" + +#ifndef ARG_UNUSED +#define ARG_UNUSED(arg) (void)arg +#endif + +/* Driver version */ +#define ARM_USART_DRV_VERSION ARM_DRIVER_VERSION_MAJOR_MINOR(2, 2) + +/* Driver Version */ +static const ARM_DRIVER_VERSION DriverVersion = { + ARM_USART_API_VERSION, + ARM_USART_DRV_VERSION +}; + +/* Driver Capabilities */ +static const ARM_USART_CAPABILITIES DriverCapabilities = { + 1, /* supports UART (Asynchronous) mode */ + 0, /* supports Synchronous Master mode */ + 0, /* supports Synchronous Slave mode */ + 0, /* supports UART Single-wire mode */ + 0, /* supports UART IrDA mode */ + 0, /* supports UART Smart Card mode */ + 0, /* Smart Card Clock generator available */ + 0, /* RTS Flow Control available */ + 0, /* CTS Flow Control available */ + 0, /* Transmit completed event: \ref ARM_USARTx_EVENT_TX_COMPLETE */ + 0, /* Signal receive character timeout event: + * \ref ARM_USARTx_EVENT_RX_TIMEOUT + */ + 0, /* RTS Line: 0=not available, 1=available */ + 0, /* CTS Line: 0=not available, 1=available */ + 0, /* DTR Line: 0=not available, 1=available */ + 0, /* DSR Line: 0=not available, 1=available */ + 0, /* DCD Line: 0=not available, 1=available */ + 0, /* RI Line: 0=not available, 1=available */ + 0, /* Signal CTS change event: \ref ARM_USARTx_EVENT_CTS */ + 0, /* Signal DSR change event: \ref ARM_USARTx_EVENT_DSR */ + 0, /* Signal DCD change event: \ref ARM_USARTx_EVENT_DCD */ + 0, /* Signal RI change event: \ref ARM_USARTx_EVENT_RI */ + 0 /* Reserved */ +}; + +static ARM_DRIVER_VERSION ARM_USART_GetVersion(void) +{ + return DriverVersion; +} + +static ARM_USART_CAPABILITIES ARM_USART_GetCapabilities(void) +{ + return DriverCapabilities; +} + +typedef struct { + struct uart_pl011_dev_t* dev; /* UART device structure */ + uint32_t tx_nbr_bytes; /* Number of bytes transfered */ + uint32_t rx_nbr_bytes; /* Number of bytes recevied */ + ARM_USART_SignalEvent_t cb_event; /* Callback function for events */ +} UARTx_Resources; + +static int32_t ARM_USARTx_Initialize(UARTx_Resources* uart_dev) +{ + /* Initializes generic UART driver */ + uart_pl011_init(uart_dev->dev, PeripheralClock); + + uart_pl011_enable(uart_dev->dev); + + return ARM_DRIVER_OK; +} + +static int32_t ARM_USARTx_Uninitialize(UARTx_Resources* uart_dev) +{ + /* Disables and uninitializes generic UART driver */ + uart_pl011_uninit(uart_dev->dev); + + return ARM_DRIVER_OK; +} + +static int32_t ARM_USARTx_PowerControl(UARTx_Resources* uart_dev, + ARM_POWER_STATE state) +{ + ARG_UNUSED(uart_dev); + + switch (state) { + case ARM_POWER_OFF: + case ARM_POWER_LOW: + return ARM_DRIVER_ERROR_UNSUPPORTED; + case ARM_POWER_FULL: + /* Nothing to be done */ + return ARM_DRIVER_OK; + default: + return ARM_DRIVER_ERROR_PARAMETER; + } +} + +static int32_t ARM_USARTx_Send(UARTx_Resources* uart_dev, const void *data, + uint32_t num) +{ + const uint8_t* p_data = (const uint8_t*)data; + + if ((data == NULL) || (num == 0U)) { + /* Invalid parameters */ + return ARM_DRIVER_ERROR_PARAMETER; + } + + /* Resets previous TX counter */ + uart_dev->tx_nbr_bytes = 0; + + while(uart_dev->tx_nbr_bytes != num) { + /* Waits until UART is ready to transmit */ + while(!uart_pl011_is_writable(uart_dev->dev)) {}; + + /* As UART is ready to transmit at this point, the write function can + * not return any transmit error */ + (void)uart_pl011_write(uart_dev->dev, *p_data); + + uart_dev->tx_nbr_bytes++; + p_data++; + } + + /* Waits until character is transmited */ + while (!uart_pl011_is_writable(uart_dev->dev)){}; + + return ARM_DRIVER_OK; +} + +static int32_t ARM_USARTx_Receive(UARTx_Resources* uart_dev, + void *data, uint32_t num) +{ + uint8_t* p_data = (uint8_t*)data; + + if ((data == NULL) || (num == 0U)) { + // Invalid parameters + return ARM_DRIVER_ERROR_PARAMETER; + } + + /* Resets previous RX counter */ + uart_dev->rx_nbr_bytes = 0; + + while(uart_dev->rx_nbr_bytes != num) { + /* Waits until one character is received */ + while (!uart_pl011_is_readable(uart_dev->dev)){}; + + /* As UART has received one byte, the read can not + * return any receive error at this point */ + (void)uart_pl011_read(uart_dev->dev, p_data); + + uart_dev->rx_nbr_bytes++; + p_data++; + } + + return ARM_DRIVER_OK; +} + +static uint32_t ARM_USARTx_GetTxCount(UARTx_Resources* uart_dev) +{ + return uart_dev->tx_nbr_bytes; +} + +static uint32_t ARM_USARTx_GetRxCount(UARTx_Resources* uart_dev) +{ + return uart_dev->rx_nbr_bytes; +} + +static int32_t ARM_USARTx_Control(UARTx_Resources* uart_dev, uint32_t control, + uint32_t arg) +{ + switch (control & ARM_USART_CONTROL_Msk) { + case ARM_USART_MODE_ASYNCHRONOUS: + if(uart_pl011_set_baudrate(uart_dev->dev, arg) != + UART_PL011_ERR_NONE) { + return ARM_USART_ERROR_BAUDRATE; + } + break; + /* Unsupported command */ + default: + return ARM_DRIVER_ERROR_UNSUPPORTED; + } + + /* UART Data bits */ + if(control & ARM_USART_DATA_BITS_Msk) { + /* Data bit is not configurable */ + return ARM_DRIVER_ERROR_UNSUPPORTED; + } + + /* UART Parity */ + if(control & ARM_USART_PARITY_Msk) { + /* Parity is not configurable */ + return ARM_USART_ERROR_PARITY; + } + + /* USART Stop bits */ + if(control & ARM_USART_STOP_BITS_Msk) { + /* Stop bit is not configurable */ + return ARM_USART_ERROR_STOP_BITS; + } + + return ARM_DRIVER_OK; +} + +#if (RTE_USART0) +/* USART0 Driver wrapper functions */ +static UARTx_Resources USART0_DEV = { + .dev = &UART0_DEV, + .tx_nbr_bytes = 0, + .rx_nbr_bytes = 0, + .cb_event = NULL, +}; + +static int32_t ARM_USART0_Initialize(ARM_USART_SignalEvent_t cb_event) +{ + USART0_DEV.cb_event = cb_event; + + musca_b1_scc_set_alt_func(&MUSCA_B1_SCC_DEV, GPIO_ALTFUNC_1, 1<<AHB_GPIO0_0); + musca_b1_scc_set_alt_func(&MUSCA_B1_SCC_DEV, GPIO_ALTFUNC_1, 1<<AHB_GPIO0_1); + + return ARM_USARTx_Initialize(&USART0_DEV); +} + +static int32_t ARM_USART0_Uninitialize(void) +{ + return ARM_USARTx_Uninitialize(&USART0_DEV); +} + +static int32_t ARM_USART0_PowerControl(ARM_POWER_STATE state) +{ + return ARM_USARTx_PowerControl(&USART0_DEV, state); +} + +static int32_t ARM_USART0_Send(const void *data, uint32_t num) +{ + return ARM_USARTx_Send(&USART0_DEV, data, num); +} + +static int32_t ARM_USART0_Receive(void *data, uint32_t num) +{ + return ARM_USARTx_Receive(&USART0_DEV, data, num); +} + +static int32_t ARM_USART0_Transfer(const void *data_out, void *data_in, + uint32_t num) +{ + ARG_UNUSED(data_out); + ARG_UNUSED(data_in); + ARG_UNUSED(num); + + return ARM_DRIVER_ERROR_UNSUPPORTED; +} + +static uint32_t ARM_USART0_GetTxCount(void) +{ + return ARM_USARTx_GetTxCount(&USART0_DEV); +} + +static uint32_t ARM_USART0_GetRxCount(void) +{ + return ARM_USARTx_GetRxCount(&USART0_DEV); +} +static int32_t ARM_USART0_Control(uint32_t control, uint32_t arg) +{ + return ARM_USARTx_Control(&USART0_DEV, control, arg); +} + +static ARM_USART_STATUS ARM_USART0_GetStatus(void) +{ + ARM_USART_STATUS status = {0, 0, 0, 0, 0, 0, 0, 0}; + return status; +} + +static int32_t ARM_USART0_SetModemControl(ARM_USART_MODEM_CONTROL control) +{ + ARG_UNUSED(control); + return ARM_DRIVER_ERROR_UNSUPPORTED; +} + +static ARM_USART_MODEM_STATUS ARM_USART0_GetModemStatus(void) +{ + ARM_USART_MODEM_STATUS modem_status = {0, 0, 0, 0, 0}; + return modem_status; +} + +extern ARM_DRIVER_USART Driver_USART0; +ARM_DRIVER_USART Driver_USART0 = { + ARM_USART_GetVersion, + ARM_USART_GetCapabilities, + ARM_USART0_Initialize, + ARM_USART0_Uninitialize, + ARM_USART0_PowerControl, + ARM_USART0_Send, + ARM_USART0_Receive, + ARM_USART0_Transfer, + ARM_USART0_GetTxCount, + ARM_USART0_GetRxCount, + ARM_USART0_Control, + ARM_USART0_GetStatus, + ARM_USART0_SetModemControl, + ARM_USART0_GetModemStatus +}; +#endif /* RTE_USART0 */ + +#if (RTE_USART1) +/* USART1 Driver wrapper functions */ +static UARTx_Resources USART1_DEV = { + .dev = &UART1_DEV, + .tx_nbr_bytes = 0, + .rx_nbr_bytes = 0, + .cb_event = NULL, +}; + +static int32_t ARM_USART1_Initialize(ARM_USART_SignalEvent_t cb_event) +{ + USART1_DEV.cb_event = cb_event; + + return ARM_USARTx_Initialize(&USART1_DEV); +} + +static int32_t ARM_USART1_Uninitialize(void) +{ + return ARM_USARTx_Uninitialize(&USART1_DEV); +} + +static int32_t ARM_USART1_PowerControl(ARM_POWER_STATE state) +{ + return ARM_USARTx_PowerControl(&USART1_DEV, state); +} + +static int32_t ARM_USART1_Send(const void *data, uint32_t num) +{ + return ARM_USARTx_Send(&USART1_DEV, data, num); +} + +static int32_t ARM_USART1_Receive(void *data, uint32_t num) +{ + return ARM_USARTx_Receive(&USART1_DEV, data, num); +} + +static int32_t ARM_USART1_Transfer(const void *data_out, void *data_in, + uint32_t num) +{ + ARG_UNUSED(data_out); + ARG_UNUSED(data_in); + ARG_UNUSED(num); + + return ARM_DRIVER_ERROR_UNSUPPORTED; +} + +static uint32_t ARM_USART1_GetTxCount(void) +{ + return ARM_USARTx_GetTxCount(&USART1_DEV); +} + +static uint32_t ARM_USART1_GetRxCount(void) +{ + return ARM_USARTx_GetRxCount(&USART1_DEV); +} +static int32_t ARM_USART1_Control(uint32_t control, uint32_t arg) +{ + return ARM_USARTx_Control(&USART1_DEV, control, arg); +} + +static ARM_USART_STATUS ARM_USART1_GetStatus(void) +{ + ARM_USART_STATUS status = {0, 0, 0, 0, 0, 0, 0, 0}; + return status; +} + +static int32_t ARM_USART1_SetModemControl(ARM_USART_MODEM_CONTROL control) +{ + ARG_UNUSED(control); + return ARM_DRIVER_ERROR_UNSUPPORTED; +} + +static ARM_USART_MODEM_STATUS ARM_USART1_GetModemStatus(void) +{ + ARM_USART_MODEM_STATUS modem_status = {0, 0, 0, 0, 0}; + return modem_status; +} + +extern ARM_DRIVER_USART Driver_USART1; +ARM_DRIVER_USART Driver_USART1 = { + ARM_USART_GetVersion, + ARM_USART_GetCapabilities, + ARM_USART1_Initialize, + ARM_USART1_Uninitialize, + ARM_USART1_PowerControl, + ARM_USART1_Send, + ARM_USART1_Receive, + ARM_USART1_Transfer, + ARM_USART1_GetTxCount, + ARM_USART1_GetRxCount, + ARM_USART1_Control, + ARM_USART1_GetStatus, + ARM_USART1_SetModemControl, + ARM_USART1_GetModemStatus +}; +#endif /* RTE_USART1 */ |