diff options
Diffstat (limited to 'components/drivers')
| -rwxr-xr-x | components/drivers/Kconfig | 30 | ||||
| -rw-r--r-- | components/drivers/cputime/cputime.c | 5 | ||||
| -rw-r--r-- | components/drivers/include/drivers/rtc.h | 1 | ||||
| -rw-r--r-- | components/drivers/include/drivers/rtc_core.h | 45 | ||||
| -rw-r--r-- | components/drivers/include/drivers/serial_v2.h | 185 | ||||
| -rw-r--r-- | components/drivers/include/ipc/workqueue.h | 1 | ||||
| -rw-r--r-- | components/drivers/include/rtdevice.h | 4 | ||||
| -rw-r--r-- | components/drivers/pm/pm.c | 4 | ||||
| -rw-r--r-- | components/drivers/rtc/SConscript | 2 | ||||
| -rw-r--r-- | components/drivers/rtc/rtc.c | 1 | ||||
| -rw-r--r-- | components/drivers/rtc/rtc_core.c | 123 | ||||
| -rw-r--r-- | components/drivers/serial/SConscript | 12 | ||||
| -rw-r--r-- | components/drivers/serial/serial.c | 5 | ||||
| -rw-r--r-- | components/drivers/serial/serial_v2.c | 1188 | ||||
| -rw-r--r-- | components/drivers/src/pipe.c | 12 |
15 files changed, 1590 insertions, 28 deletions
diff --git a/components/drivers/Kconfig b/components/drivers/Kconfig index c7fec6cba9..d3fd14b52d 100755 --- a/components/drivers/Kconfig +++ b/components/drivers/Kconfig @@ -24,22 +24,30 @@ if RT_USING_DEVICE_IPC endif endif -config RT_USING_SERIAL - bool "Using serial device drivers" +menuconfig RT_USING_SERIAL + bool "USING Serial device drivers" select RT_USING_DEVICE_IPC select RT_USING_DEVICE default y -if RT_USING_SERIAL - config RT_SERIAL_USING_DMA - bool "Enable serial DMA mode" - default y - - config RT_SERIAL_RB_BUFSZ - int "Set RX buffer size" - default 64 + if RT_USING_SERIAL + choice + prompt "Choice Serial version" + default RT_USING_SERIAL_V1 + config RT_USING_SERIAL_V1 + bool "RT_USING_SERIAL_V1" + config RT_USING_SERIAL_V2 + bool "RT_USING_SERIAL_V2" + endchoice + config RT_SERIAL_USING_DMA + bool "Enable serial DMA mode" + default y -endif + config RT_SERIAL_RB_BUFSZ + int "Set RX buffer size" + depends on !RT_USING_SERIAL_V2 + default 64 + endif config RT_USING_CAN bool "Using CAN device drivers" diff --git a/components/drivers/cputime/cputime.c b/components/drivers/cputime/cputime.c index 4a9eee3a71..750733f366 100644 --- a/components/drivers/cputime/cputime.c +++ b/components/drivers/cputime/cputime.c @@ -10,6 +10,7 @@ #include <rtdevice.h> #include <rtthread.h> +#include <sys/errno.h> static const struct rt_clock_cputime_ops *_cputime_ops = RT_NULL; @@ -24,7 +25,7 @@ float clock_cpu_getres(void) if (_cputime_ops) return _cputime_ops->cputime_getres(); - rt_set_errno(-ENOSYS); + rt_set_errno(ENOSYS); return 0; } @@ -38,7 +39,7 @@ uint32_t clock_cpu_gettime(void) if (_cputime_ops) return _cputime_ops->cputime_gettime(); - rt_set_errno(-ENOSYS); + rt_set_errno(ENOSYS); return 0; } diff --git a/components/drivers/include/drivers/rtc.h b/components/drivers/include/drivers/rtc.h index a9e1c17a9d..9eddf801b7 100644 --- a/components/drivers/include/drivers/rtc.h +++ b/components/drivers/include/drivers/rtc.h @@ -12,6 +12,7 @@ #define __RTC_H__ #include <rtconfig.h> +#include <drivers/rtc_core.h> rt_err_t set_date(rt_uint32_t year, rt_uint32_t month, rt_uint32_t day); rt_err_t set_time(rt_uint32_t hour, rt_uint32_t minute, rt_uint32_t second); diff --git a/components/drivers/include/drivers/rtc_core.h b/components/drivers/include/drivers/rtc_core.h new file mode 100644 index 0000000000..f0c7b64e94 --- /dev/null +++ b/components/drivers/include/drivers/rtc_core.h @@ -0,0 +1,45 @@ +/* + * Copyright (c) 2006-2021, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2021-06-11 iysheng first version. + */ + +#ifndef __RTC_CORE_H__ +#define __RTC_CORE_H__ + +#include <rtthread.h> + +#define RT_DEVICE_CTRL_RTC_GET_TIME 0x10 /**< get second time */ +#define RT_DEVICE_CTRL_RTC_SET_TIME 0x11 /**< set second time */ +#define RT_DEVICE_CTRL_RTC_GET_TIME_US 0x12 /**< get microsecond time */ +#define RT_DEVICE_CTRL_RTC_SET_TIME_US 0x13 /**< set microsecond time */ +#define RT_DEVICE_CTRL_RTC_GET_ALARM 0x14 /**< get alarm */ +#define RT_DEVICE_CTRL_RTC_SET_ALARM 0x15 /**< set alarm */ + +struct rt_rtc_ops +{ + rt_err_t (*init)(void); + rt_err_t (*get_secs)(void *arg); + rt_err_t (*set_secs)(void *arg); + rt_err_t (*get_alarm)(void *arg); + rt_err_t (*set_alarm)(void *arg); + rt_err_t (*get_usecs)(void *arg); + rt_err_t (*set_usecs)(void *arg); +}; + +typedef struct rt_rtc_device +{ + struct rt_device parent; + const struct rt_rtc_ops *ops; +} rt_rtc_dev_t; + +rt_err_t rt_rtc_dev_register(rt_rtc_dev_t *rtc, + const char *name, + rt_uint32_t flag, + void *data); + +#endif /* __RTC_CORE_H__ */ diff --git a/components/drivers/include/drivers/serial_v2.h b/components/drivers/include/drivers/serial_v2.h new file mode 100644 index 0000000000..3ba46bdcdd --- /dev/null +++ b/components/drivers/include/drivers/serial_v2.h @@ -0,0 +1,185 @@ +/* + * Copyright (c) 2006-2018, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2021-06-01 KyleChan first version + */ + +#ifndef __SERIAL_V2_H__ +#define __SERIAL_V2_H__ + +#include <rtthread.h> + +#define BAUD_RATE_2400 2400 +#define BAUD_RATE_4800 4800 +#define BAUD_RATE_9600 9600 +#define BAUD_RATE_19200 19200 +#define BAUD_RATE_38400 38400 +#define BAUD_RATE_57600 57600 +#define BAUD_RATE_115200 115200 +#define BAUD_RATE_230400 230400 +#define BAUD_RATE_460800 460800 +#define BAUD_RATE_921600 921600 +#define BAUD_RATE_2000000 2000000 +#define BAUD_RATE_3000000 3000000 + +#define DATA_BITS_5 5 +#define DATA_BITS_6 6 +#define DATA_BITS_7 7 +#define DATA_BITS_8 8 +#define DATA_BITS_9 9 + +#define STOP_BITS_1 0 +#define STOP_BITS_2 1 +#define STOP_BITS_3 2 +#define STOP_BITS_4 3 + +#ifdef _WIN32 +#include <windows.h> +#else +#define PARITY_NONE 0 +#define PARITY_ODD 1 +#define PARITY_EVEN 2 +#endif + +#define BIT_ORDER_LSB 0 +#define BIT_ORDER_MSB 1 + +#define NRZ_NORMAL 0 /* Non Return to Zero : normal mode */ +#define NRZ_INVERTED 1 /* Non Return to Zero : inverted mode */ + +#define RT_DEVICE_FLAG_RX_BLOCKING 0x1000 +#define RT_DEVICE_FLAG_RX_NON_BLOCKING 0x2000 + +#define RT_DEVICE_FLAG_TX_BLOCKING 0x4000 +#define RT_DEVICE_FLAG_TX_NON_BLOCKING 0x8000 + +#define RT_SERIAL_RX_BLOCKING RT_DEVICE_FLAG_RX_BLOCKING +#define RT_SERIAL_RX_NON_BLOCKING RT_DEVICE_FLAG_RX_NON_BLOCKING +#define RT_SERIAL_TX_BLOCKING RT_DEVICE_FLAG_TX_BLOCKING +#define RT_SERIAL_TX_NON_BLOCKING RT_DEVICE_FLAG_TX_NON_BLOCKING + +#define RT_DEVICE_CHECK_OPTMODE 0x20 + +#define RT_SERIAL_EVENT_RX_IND 0x01 /* Rx indication */ +#define RT_SERIAL_EVENT_TX_DONE 0x02 /* Tx complete */ +#define RT_SERIAL_EVENT_RX_DMADONE 0x03 /* Rx DMA transfer done */ +#define RT_SERIAL_EVENT_TX_DMADONE 0x04 /* Tx DMA transfer done */ +#define RT_SERIAL_EVENT_RX_TIMEOUT 0x05 /* Rx timeout */ + +#define RT_SERIAL_ERR_OVERRUN 0x01 +#define RT_SERIAL_ERR_FRAMING 0x02 +#define RT_SERIAL_ERR_PARITY 0x03 + +#define RT_SERIAL_TX_DATAQUEUE_SIZE 2048 +#define RT_SERIAL_TX_DATAQUEUE_LWM 30 + +#define RT_SERIAL_RX_MINBUFSZ 64 +#define RT_SERIAL_TX_MINBUFSZ 64 + +#define RT_SERIAL_TX_BLOCKING_BUFFER 1 +#define RT_SERIAL_TX_BLOCKING_NO_BUFFER 0 + +/* Default config for serial_configure structure */ +#define RT_SERIAL_CONFIG_DEFAULT \ +{ \ + BAUD_RATE_115200, /* 115200 bits/s */ \ + DATA_BITS_8, /* 8 databits */ \ + STOP_BITS_1, /* 1 stopbit */ \ + PARITY_NONE, /* No parity */ \ + BIT_ORDER_LSB, /* LSB first sent */ \ + NRZ_NORMAL, /* Normal mode */ \ + RT_SERIAL_RX_MINBUFSZ, /* rxBuf size */ \ + RT_SERIAL_TX_MINBUFSZ, /* txBuf size */ \ + 0 \ +} + +struct serial_configure +{ + rt_uint32_t baud_rate; + + rt_uint32_t data_bits :4; + rt_uint32_t stop_bits :2; + rt_uint32_t parity :2; + rt_uint32_t bit_order :1; + rt_uint32_t invert :1; + rt_uint32_t rx_bufsz :16; + rt_uint32_t tx_bufsz :16; + rt_uint32_t reserved :6; +}; + +/* + * Serial Receive FIFO mode + */ +struct rt_serial_rx_fifo +{ + struct rt_ringbuffer rb; + + struct rt_completion rx_cpt; + + rt_uint16_t rx_cpt_index; + + /* software fifo */ + rt_uint8_t buffer[]; +}; + +/* + * Serial Transmit FIFO mode + */ +struct rt_serial_tx_fifo +{ + struct rt_ringbuffer rb; + + rt_size_t put_size; + + rt_bool_t activated; + + struct rt_completion tx_cpt; + + /* software fifo */ + rt_uint8_t buffer[]; +}; + +struct rt_serial_device +{ + struct rt_device parent; + + const struct rt_uart_ops *ops; + struct serial_configure config; + + void *serial_rx; + void *serial_tx; +}; + +/** + * uart operators + */ +struct rt_uart_ops +{ + rt_err_t (*configure)(struct rt_serial_device *serial, + struct serial_configure *cfg); + + rt_err_t (*control)(struct rt_serial_device *serial, + int cmd, + void *arg); + + int (*putc)(struct rt_serial_device *serial, char c); + int (*getc)(struct rt_serial_device *serial); + + rt_size_t (*transmit)(struct rt_serial_device *serial, + rt_uint8_t *buf, + rt_size_t size, + rt_uint32_t tx_flag); +}; + +void rt_hw_serial_isr(struct rt_serial_device *serial, int event); + +rt_err_t rt_hw_serial_register(struct rt_serial_device *serial, + const char *name, + rt_uint32_t flag, + void *data); + +#endif diff --git a/components/drivers/include/ipc/workqueue.h b/components/drivers/include/ipc/workqueue.h index ccbc42b226..03d38b2f4d 100644 --- a/components/drivers/include/ipc/workqueue.h +++ b/components/drivers/include/ipc/workqueue.h @@ -64,6 +64,7 @@ rt_err_t rt_workqueue_submit_work(struct rt_workqueue *queue, struct rt_work *wo rt_err_t rt_workqueue_cancel_work(struct rt_workqueue *queue, struct rt_work *work); rt_err_t rt_workqueue_cancel_work_sync(struct rt_workqueue *queue, struct rt_work *work); rt_err_t rt_workqueue_cancel_all_work(struct rt_workqueue *queue); +rt_err_t rt_workqueue_critical_work(struct rt_workqueue *queue, struct rt_work *work); #ifdef RT_USING_SYSTEM_WORKQUEUE rt_err_t rt_work_submit(struct rt_work *work, rt_tick_t time); diff --git a/components/drivers/include/rtdevice.h b/components/drivers/include/rtdevice.h index fbd3c9e7b2..07a2be361e 100644 --- a/components/drivers/include/rtdevice.h +++ b/components/drivers/include/rtdevice.h @@ -57,7 +57,11 @@ extern "C" { #endif /* RT_USING_USB_HOST */ #ifdef RT_USING_SERIAL +#ifdef RT_USING_SERIAL_V2 +#include "drivers/serial_v2.h" +#else #include "drivers/serial.h" +#endif #endif /* RT_USING_SERIAL */ #ifdef RT_USING_I2C diff --git a/components/drivers/pm/pm.c b/components/drivers/pm/pm.c index 80ed101498..cf488a9ce1 100644 --- a/components/drivers/pm/pm.c +++ b/components/drivers/pm/pm.c @@ -836,12 +836,10 @@ rt_uint32_t rt_pm_module_get_status(void) rt_uint32_t req_status = 0x00; pm = &_pm; - for (index = 0; index < 32; index ++) + for (index = 0; index < PM_MODULE_MAX_ID; index ++) { if (pm->module_status[index].req_status == 0x01) req_status |= 1<<index; - if (index >= PM_MODULE_MAX_ID) - break; } return req_status; diff --git a/components/drivers/rtc/SConscript b/components/drivers/rtc/SConscript index 6ec8bcb3c5..c3252fe7f9 100644 --- a/components/drivers/rtc/SConscript +++ b/components/drivers/rtc/SConscript @@ -7,7 +7,7 @@ CPPPATH = [cwd + '/../include'] group = [] if GetDepend(['RT_USING_RTC']): - src = src + ['rtc.c'] + src = src + ['rtc.c', 'rtc_core.c'] if GetDepend(['RT_USING_ALARM']): src = src + ['alarm.c'] if GetDepend(['RT_USING_SOFT_RTC']): diff --git a/components/drivers/rtc/rtc.c b/components/drivers/rtc/rtc.c index b5005429a0..3a843e2e0c 100644 --- a/components/drivers/rtc/rtc.c +++ b/components/drivers/rtc/rtc.c @@ -16,6 +16,7 @@ #include <string.h> #include <stdlib.h> #include <rtthread.h> +#include <drivers/rtc.h> #ifdef RT_USING_RTC diff --git a/components/drivers/rtc/rtc_core.c b/components/drivers/rtc/rtc_core.c new file mode 100644 index 0000000000..80bb61c8aa --- /dev/null +++ b/components/drivers/rtc/rtc_core.c @@ -0,0 +1,123 @@ +/* + * COPYRIGHT (C) 2011-2021, Real-Thread Information Technology Ltd + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2021-06-11 iysheng first version. + */ + +#include <drivers/rtc_core.h> + +#define TRY_DO_RTC_FUNC(rt_rtc_dev, func_name, args) \ + rt_rtc_dev->ops->func_name ? rt_rtc_dev->ops->func_name(args) : -RT_EINVAL; + +/* + * This function initializes rtc_core + */ +static rt_err_t rt_rtc_core_init(struct rt_device *dev) +{ + rt_rtc_dev_t *rtc_core; + + RT_ASSERT(dev != RT_NULL); + rtc_core = (rt_rtc_dev_t *)dev; + if (rtc_core->ops->init) + { + return (rtc_core->ops->init()); + } + + return (-RT_ENOSYS); +} + +static rt_err_t rt_rtc_core_open(struct rt_device *dev, rt_uint16_t oflag) +{ + return (RT_EOK); +} + +static rt_err_t rt_rtc_core_close(struct rt_device *dev) +{ + /* Add close member function in rt_rtc_ops when need, + * then call that function here. + * */ + return (RT_EOK); +} + +static rt_err_t rt_rtc_core_control(struct rt_device *dev, + int cmd, + void *args) +{ + rt_rtc_dev_t *rtc_core; + rt_err_t ret = -RT_EINVAL; + + RT_ASSERT(dev != RT_NULL); + rtc_core = (rt_rtc_dev_t *)dev; + + switch (cmd) + { + case RT_DEVICE_CTRL_RTC_GET_TIME: + ret = TRY_DO_RTC_FUNC(rtc_core, get_secs, args); + break; + case RT_DEVICE_CTRL_RTC_SET_TIME: + ret = TRY_DO_RTC_FUNC(rtc_core, set_secs, args); + break; + case RT_DEVICE_CTRL_RTC_GET_TIME_US: + ret = TRY_DO_RTC_FUNC(rtc_core, get_usecs, args); + break; + case RT_DEVICE_CTRL_RTC_SET_TIME_US: + ret = TRY_DO_RTC_FUNC(rtc_core, set_usecs, args); + break; + case RT_DEVICE_CTRL_RTC_GET_ALARM: + ret = TRY_DO_RTC_FUNC(rtc_core, get_alarm, args); + break; + case RT_DEVICE_CTRL_RTC_SET_ALARM: + ret = TRY_DO_RTC_FUNC(rtc_core, set_alarm, args); + break; + default: + break; + } + + return ret; +} +#ifdef RT_USING_DEVICE_OPS +const static struct rt_device_ops rtc_core_ops = +{ + rt_rtc_core_init, + rt_rtc_core_open, + rt_rtc_core_close, + RT_NULL, + RT_NULL, + rt_rtc_core_control, +}; +#endif + +rt_err_t rt_rtc_dev_register(rt_rtc_dev_t *rtc, + const char *name, + rt_uint32_t flag, + void *data) +{ + struct rt_device *device; + RT_ASSERT(rtc != RT_NULL); + + device = &(rtc->parent); + + device->type = RT_Device_Class_RTC; + device->rx_indicate = RT_NULL; + device->tx_complete = RT_NULL; + +#ifdef RT_USING_DEVICE_OPS + device->ops = &rtc_core_ops; +#else + device->init = rt_rtc_core_init; + device->open = rt_rtc_core_open; + device->close = rt_rtc_core_close; + device->read = RT_NULL; + device->write = RT_NULL; + device->control = rt_rtc_core_control; +#endif + device->user_data = data; + + /* register a character device */ + return rt_device_register(device, name, flag); +} + diff --git a/components/drivers/serial/SConscript b/components/drivers/serial/SConscript index a6eb115919..81d791803a 100644 --- a/components/drivers/serial/SConscript +++ b/components/drivers/serial/SConscript @@ -1,8 +1,14 @@ from building import * -cwd = GetCurrentDir() -src = Glob('*.c') +cwd = GetCurrentDir() CPPPATH = [cwd + '/../include'] -group = DefineGroup('DeviceDrivers', src, depend = ['RT_USING_SERIAL'], CPPPATH = CPPPATH) +group = [] +if GetDepend(['RT_USING_SERIAL']): + if GetDepend(['RT_USING_SERIAL_V2']): + src = Glob('serial_v2.c') + group = DefineGroup('DeviceDrivers', src, depend = ['RT_USING_SERIAL_V2'], CPPPATH = CPPPATH) + else: + src = Glob('serial.c') + group = DefineGroup('DeviceDrivers', src, depend = ['RT_USING_SERIAL'], CPPPATH = CPPPATH) Return('group') diff --git a/components/drivers/serial/serial.c b/components/drivers/serial/serial.c index 2736ceed66..76298ea153 100644 --- a/components/drivers/serial/serial.c +++ b/components/drivers/serial/serial.c @@ -38,6 +38,7 @@ #ifdef RT_USING_POSIX #include <dfs_posix.h> #include <dfs_poll.h> +#include <sys/ioctl.h> #ifdef RT_USING_POSIX_TERMIOS #include <posix_termios.h> @@ -954,9 +955,7 @@ static void _tc_flush(struct rt_serial_device *serial, int queue) { RT_ASSERT(RT_NULL != rx_fifo); level = rt_hw_interrupt_disable(); - rt_memset(rx_fifo->buffer, 0, serial->config.bufsz); - rx_fifo->put_index = 0; - rx_fifo->get_index = 0; + rx_fifo->get_index = rx_fifo->put_index; rx_fifo->is_full = RT_FALSE; rt_hw_interrupt_enable(level); } diff --git a/components/drivers/serial/serial_v2.c b/components/drivers/serial/serial_v2.c new file mode 100644 index 0000000000..d6ae508cab --- /dev/null +++ b/components/drivers/serial/serial_v2.c @@ -0,0 +1,1188 @@ +/* + * Copyright (c) 2006-2018, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2021-06-01 KyleChan first version + */ + +#include <rthw.h> +#include <rtthread.h> +#include <rtdevice.h> + +#define DBG_TAG "UART" +#define DBG_LVL DBG_INFO +#include <rtdbg.h> + +#ifdef RT_USING_POSIX +#include <dfs_posix.h> +#include <dfs_poll.h> + +#ifdef getc +#undef getc +#endif + +#ifdef putc +#undef putc +#endif + +static rt_err_t serial_fops_rx_ind(rt_device_t dev, rt_size_t size) +{ + rt_wqueue_wakeup(&(dev->wait_queue), (void*)POLLIN); + + return RT_EOK; +} + +/* fops for serial */ +static int serial_fops_open(struct dfs_fd *fd) +{ + rt_err_t ret = 0; + rt_uint16_t flags = 0; + rt_device_t device; + + device = (rt_device_t)fd->data; + RT_ASSERT(device != RT_NULL); + + switch (fd->flags & O_ACCMODE) + { + case O_RDONLY: + LOG_D("fops open: O_RDONLY!"); + flags = RT_DEVICE_FLAG_RDONLY; + break; + case O_WRONLY: + LOG_D("fops open: O_WRONLY!"); + flags = RT_DEVICE_FLAG_WRONLY; + break; + case O_RDWR: + LOG_D("fops open: O_RDWR!"); + flags = RT_DEVICE_FLAG_RDWR; + break; + default: + LOG_E("fops open: unknown mode - %d!", fd->flags & O_ACCMODE); + break; + } + + if ((fd->flags & O_ACCMODE) != O_WRONLY) + rt_device_set_rx_indicate(device, serial_fops_rx_ind); + ret = rt_device_open(device, flags); + if (ret == RT_EOK) return 0; + + return ret; +} + +static int serial_fops_close(struct dfs_fd *fd) +{ + rt_device_t device; + + device = (rt_device_t)fd->data; + + rt_device_set_rx_indicate(device, RT_NULL); + rt_device_close(device); + + return 0; +} + +static int serial_fops_ioctl(struct dfs_fd *fd, int cmd, void *args) +{ + rt_device_t device; + + device = (rt_device_t)fd->data; + switch (cmd) + { + case FIONREAD: + break; + case FIONWRITE: + break; + } + + return rt_device_control(device, cmd, args); +} + +static int serial_fops_read(struct dfs_fd *fd, void *buf, size_t count) +{ + int size = 0; + rt_device_t device; + + device = (rt_device_t)fd->data; + + do + { + size = rt_device_read(device, -1, buf, count); + if (size <= 0) + { + if (fd->flags & O_NONBLOCK) + { + size = -EAGAIN; + break; + } + + rt_wqueue_wait(&(device->wait_queue), 0, RT_WAITING_FOREVER); + } + }while (size <= 0); + + return size; +} + +static int serial_fops_write(struct dfs_fd *fd, const void *buf, size_t count) +{ + rt_device_t device; + + device = (rt_device_t)fd->data; + return rt_device_write(device, -1, buf, count); +} + +static int serial_fops_poll(struct dfs_fd *fd, struct rt_pollreq *req) +{ + int mask = 0; + int flags = 0; + rt_device_t device; + struct rt_serial_device *serial; + + device = (rt_device_t)fd->data; + RT_ASSERT(device != RT_NULL); + + serial = (struct rt_serial_device *)device; + + /* only support POLLIN */ + flags = fd->flags & O_ACCMODE; + if (flags == O_RDONLY || flags == O_RDWR) + { + rt_base_t level; + struct rt_serial_rx_fifo* rx_fifo; + + rt_poll_add(&(device->wait_queue), req); + + rx_fifo = (struct rt_serial_rx_fifo*) serial->serial_rx; + + level = rt_hw_interrupt_disable(); + + if (rt_ringbuffer_data_len(&rx_fifo->rb)) + mask |= POLLIN; + rt_hw_interrupt_enable(level); + } + // mask|=POLLOUT; + return mask; +} + +const static struct dfs_file_ops _serial_fops = +{ + serial_fops_open, + serial_fops_close, + serial_fops_ioctl, + serial_fops_read, + serial_fops_write, + RT_NULL, /* flush */ + RT_NULL, /* lseek */ + RT_NULL, /* getdents */ + serial_fops_poll, +}; +#endif + +static rt_size_t rt_serial_get_linear_buffer(struct rt_ringbuffer *rb, + rt_uint8_t **ptr) +{ + rt_size_t size; + + RT_ASSERT(rb != RT_NULL); + + *ptr = RT_NULL; + + /* whether has enough data */ + size = rt_ringbuffer_data_len(rb); + + /* no data */ + if (size == 0) + return 0; + + *ptr = &rb->buffer_ptr[rb->read_index]; + + if(rb->buffer_size - rb->read_index > size) + { + return size; + } + + return rb->buffer_size - rb->read_index; +} + +static rt_size_t rt_serial_update_read_index(struct rt_ringbuffer *rb, + rt_uint16_t read_index) +{ + rt_size_t size; + + RT_ASSERT(rb != RT_NULL); + + /* whether has enough data */ + size = rt_ringbuffer_data_len(rb); + + /* no data */ + if (size == 0) + return 0; + + /* less data */ + if(size < read_index) + read_index = size; + + if(rb->buffer_size - rb->read_index > read_index) + { + rb->read_index += read_index; + return read_index; + } + + read_index = rb->buffer_size - rb->read_index; + + /* we are going into the other side of the mirror */ + rb->read_mirror = ~rb->read_mirror; + rb->read_index = 0; + + return read_index; +} + +static rt_size_t rt_serial_update_write_index(struct rt_ringbuffer *rb, + rt_uint16_t write_index) +{ + rt_uint16_t size; + RT_ASSERT(rb != RT_NULL); + + /* whether has enough space */ + size = rt_ringbuffer_space_len(rb); + + /* no space */ + if (size == 0) + return 0; + + /* drop some data */ + if (size < write_index) + write_index = size; + + if (rb->buffer_size - rb->write_index > write_index) + { + /* this should not cause overflow because there is enough space for + * length of data in current mirror */ + rb->write_index += write_index; + return write_index; + } + + /* we are going into the other side of the mirror */ + rb->write_mirror = ~rb->write_mirror; + rb->write_index = write_index - (rb->buffer_size - rb->write_index); + + return write_index; +} + + +/** + * @brief Serial polling receive data routine, This function will receive data + * in a continuous loop by one by one byte. + * @param dev The pointer of device driver structure + * @param pos Empty parameter. + * @param buffer Receive data buffer. + * @param size Receive data buffer length. + * @return Return the final length of data received. + */ +rt_size_t _serial_poll_rx(struct rt_device *dev, + rt_off_t pos, + void *buffer, + rt_size_t size) +{ + struct rt_serial_device *serial; + rt_size_t getc_size; + int getc_element; /* Gets one byte of data received */ + rt_uint8_t *getc_buffer; /* Pointer to the receive data buffer */ + + RT_ASSERT(dev != RT_NULL); + + serial = (struct rt_serial_device *)dev; + RT_ASSERT(serial != RT_NULL); + getc_buffer = (rt_uint8_t *)buffer; + getc_size = size; + + while(size) + { + getc_element = serial->ops->getc(serial); + if (getc_element == -1) break; + + *getc_buffer = getc_element; + + ++ getc_buffer; + -- size; + + if (serial->parent.open_flag & RT_DEVICE_FLAG_STREAM) + { + /* If open_flag satisfies RT_DEVICE_FLAG_STREAM + * and the received character is '\n', exit the loop directly */ + if (getc_element == '\n') break; + } + } + + return getc_size - size; +} + +/** + * @brief Serial polling transmit data routines, This function will transmit + * data in a continuous loop by one by one byte. + * @param dev The pointer of device driver structure + * @param pos Empty parameter. + * @param buffer Transmit data buffer. + * @param size Transmit data buffer length. + * @return Return the final length of data received. + */ +rt_size_t _serial_poll_tx(struct rt_device *dev, + rt_off_t pos, + const void *buffer, + rt_size_t size) +{ + struct rt_serial_device *serial; + rt_size_t putc_size; + rt_uint8_t *putc_buffer; /* Pointer to the transmit data buffer */ + RT_ASSERT(dev != RT_NULL); + + serial = (struct rt_serial_device *)dev; + RT_ASSERT(serial != RT_NULL); + + putc_buffer = (rt_uint8_t *)buffer; + putc_size = size; + + while (size) + { + if (serial->parent.open_flag & RT_DEVICE_FLAG_STREAM) + { + /* If open_flag satisfies RT_DEVICE_FLAG_STREAM and the received character is '\n', + * inserts '\r' character before '\n' character for the effect of carriage return newline */ + if (*putc_buffer == '\n') + serial->ops->putc(serial, '\r'); + } + serial->ops->putc(serial, *putc_buffer); + + ++ putc_buffer; + -- size; + } + + return putc_size - size; +} + +/** + * @brief Serial receive data routines, This function will receive + * data by using fifo + * @param dev The pointer of device driver structure + * @param pos Empty parameter. + * @param buffer Receive data buffer. + * @param size Receive data buffer length. + * @return Return the final length of data received. + */ +static rt_size_t _serial_fifo_rx(struct rt_device *dev, + rt_off_t pos, + void *buffer, + rt_size_t size) +{ + struct rt_serial_device *serial; + struct rt_serial_rx_fifo *rx_fifo; + rt_base_t level; + rt_size_t recv_len; /* The length of data from the ringbuffer */ + + RT_ASSERT(dev != RT_NULL); + if (size == 0) return 0; + + serial = (struct rt_serial_device *)dev; + + RT_ASSERT((serial != RT_NULL) && (buffer != RT_NULL)); + + rx_fifo = (struct rt_serial_rx_fifo *) serial->serial_rx; + + if (dev->open_flag & RT_SERIAL_RX_BLOCKING) + { + if (size > serial->config.rx_bufsz) + { + LOG_W("(%s) serial device received data:[%d] larger than " + "rx_bufsz:[%d], please increase the BSP_UARTx_RX_BUFSIZE option", + dev->parent.name, size, serial->config.rx_bufsz); + + return 0; + } + /* Get the length of the data from the ringbuffer */ + recv_len = rt_ringbuffer_data_len(&(rx_fifo->rb)); + + if (recv_len < size) + { + /* When recv_len is less than size, rx_cpt_index is updated to the size + * and rt_current_thread is suspend until rx_cpt_index is equal to 0 */ + rx_fifo->rx_cpt_index = size; + rt_completion_wait(&(rx_fifo->rx_cpt), RT_WAITING_FOREVER); + } + } + + /* This part of the code is open_flag as RT_SERIAL_RX_NON_BLOCKING */ + + level = rt_hw_interrupt_disable(); + /* When open_flag is RT_SERIAL_RX_NON_BLOCKING, + * the data is retrieved directly from the ringbuffer and returned */ + recv_len = rt_ringbuffer_get(&(rx_fifo->rb), buffer, size); + + rt_hw_interrupt_enable(level); + + return recv_len; +} + +/** + * @brief Serial transmit data routines, This function will transmit + * data by using blocking_nbuf. + * @param dev The pointer of device driver structure + * @param pos Empty parameter. + * @param buffer Transmit data buffer. + * @param size Transmit data buffer length. + * @return Return the final length of data transmit. + */ +static rt_size_t _serial_fifo_tx_blocking_nbuf(struct rt_device *dev, + rt_off_t pos, + const void *buffer, + rt_size_t size) +{ + struct rt_serial_device *serial; + struct rt_serial_tx_fifo *tx_fifo = RT_NULL; + + RT_ASSERT(dev != RT_NULL); + if (size == 0) return 0; + + serial = (struct rt_serial_device *)dev; + RT_ASSERT((serial != RT_NULL) && (buffer != RT_NULL)); + tx_fifo = (struct rt_serial_tx_fifo *) serial->serial_tx; + RT_ASSERT(tx_fifo != RT_NULL); + + /* When serial transmit in tx_blocking mode, + * if the activated mode is RT_TRUE, it will return directly */ + if (tx_fifo->activated == RT_TRUE) return 0; + + tx_fifo->activated = RT_TRUE; + /* Call the transmit interface for transmission */ + serial->ops->transmit(serial, + (rt_uint8_t *)buffer, + size, + RT_SERIAL_TX_BLOCKING); + /* Waiting for the transmission to complete */ + rt_completion_wait(&(tx_fifo->tx_cpt), RT_WAITING_FOREVER); + + return size; +} + +/** + * @brief Serial transmit data routines, This function will transmit + * data by using blocking_buf. + * @param dev The pointer of device driver structure + * @param pos Empty parameter. + * @param buffer Transmit data buffer. + * @param size Transmit data buffer length. + * @return Return the final length of data transmit. + */ +static rt_size_t _serial_fifo_tx_blocking_buf(struct rt_device *dev, + rt_off_t pos, + const void *buffer, + rt_size_t size) +{ + struct rt_serial_device *serial; + struct rt_serial_tx_fifo *tx_fifo = RT_NULL; + + RT_ASSERT(dev != RT_NULL); + if (size == 0) return 0; + + serial = (struct rt_serial_device *)dev; + RT_ASSERT((serial != RT_NULL) && (buffer != RT_NULL)); + tx_fifo = (struct rt_serial_tx_fifo *) serial->serial_tx; + RT_ASSERT(tx_fifo != RT_NULL); + /* When serial transmit in tx_blocking mode, + * if the activated mode is RT_TRUE, it will return directly */ + if (tx_fifo->activated == RT_TRUE) return 0; + + tx_fifo->activated = RT_TRUE; + rt_size_t length = size; + rt_size_t offset = 0; + + while (size) + { + /* Copy one piece of data into the ringbuffer at a time + * until the length of the data is equal to size */ + tx_fifo->put_size = rt_ringbuffer_put(&(tx_fifo->rb), + (rt_uint8_t *)buffer + offset, + size); + + offset += tx_fifo->put_size; + size -= tx_fifo->put_size; + /* Call the transmit interface for transmission */ + serial->ops->transmit(serial, + (rt_uint8_t *)buffer + offset, + tx_fifo->put_size, + RT_SERIAL_TX_BLOCKING); + /* Waiting for the transmission to complete */ + rt_completion_wait(&(tx_fifo->tx_cpt), RT_WAITING_FOREVER); + } + + return length; +} + +/** + * @brief Serial transmit data routines, This function will transmit + * data by using nonblocking. + * @param dev The pointer of device driver structure + * @param pos Empty parameter. + * @param buffer Transmit data buffer. + * @param size Transmit data buffer length. + * @return Return the final length of data transmit. + */ +static rt_size_t _serial_fifo_tx_nonblocking(struct rt_device *dev, + rt_off_t pos, + const void *buffer, + rt_size_t size) +{ + struct rt_serial_device *serial; + struct rt_serial_tx_fifo *tx_fifo; + rt_base_t level; + rt_size_t length; + + RT_ASSERT(dev != RT_NULL); + if (size == 0) return 0; + + serial = (struct rt_serial_device *)dev; + RT_ASSERT((serial != RT_NULL) && (buffer != RT_NULL)); + tx_fifo = (struct rt_serial_tx_fifo *) serial->serial_tx; + + level = rt_hw_interrupt_disable(); + + if (tx_fifo->activated == RT_FALSE) + { + /* When serial transmit in tx_non_blocking mode, if the activated mode is RT_FALSE, + * start copying data into the ringbuffer */ + tx_fifo->activated = RT_TRUE; + /* Copying data into the ringbuffer */ + length = rt_ringbuffer_put(&(tx_fifo->rb), buffer, size); + + rt_hw_interrupt_enable(level); + + rt_uint8_t *put_ptr = RT_NULL; + /* Get the linear length buffer from rinbuffer */ + tx_fifo->put_size = rt_serial_get_linear_buffer(&(tx_fifo->rb), &put_ptr); + /* Call the transmit interface for transmission */ + serial->ops->transmit(serial, + put_ptr, + tx_fifo->put_size, + RT_SERIAL_TX_NON_BLOCKING); + /* In tx_nonblocking mode, there is no need to call rt_completion_wait() APIs to wait + * for the rt_current_thread to resume */ + return length; + } + + /* If the activated mode is RT_FALSE, it means that serial device is transmitting, + * where only the data in the ringbuffer and there is no need to call the transmit() API. + * Note that this part of the code requires disable interrupts + * to prevent multi thread reentrant */ + + /* Copying data into the ringbuffer */ + length = rt_ringbuffer_put(&(tx_fifo->rb), buffer, size); + + rt_hw_interrupt_enable(level); + + return length; +} + + +/** + * @brief Enable serial transmit mode. + * @param dev The pointer of device driver structure + * @param rx_oflag The flag of that the serial port opens. + * @return Return the status of the operation. + */ +static rt_err_t rt_serial_tx_enable(struct rt_device *dev, + rt_uint16_t tx_oflag) +{ + struct rt_serial_device *serial; + struct rt_serial_tx_fifo *tx_fifo = RT_NULL; + + RT_ASSERT(dev != RT_NULL); + serial = (struct rt_serial_device *)dev; + + if (serial->config.tx_bufsz == 0) + { + /* Cannot use RT_SERIAL_TX_NON_BLOCKING when tx_bufsz is 0 */ + if (tx_oflag == RT_SERIAL_TX_NON_BLOCKING) + { + LOG_E("(%s) serial device with misconfigure: tx_bufsz = 0", + dev->parent.name); + return -RT_EINVAL; + } + + dev->write = _serial_poll_tx; + dev->open_flag |= RT_SERIAL_TX_BLOCKING; + return RT_EOK; + } + /* Limits the minimum value of tx_bufsz */ + if (serial->config.tx_bufsz < RT_SERIAL_TX_MINBUFSZ) + serial->config.tx_bufsz = RT_SERIAL_TX_MINBUFSZ; + + if (tx_oflag == RT_SERIAL_TX_BLOCKING) + { + /* When using RT_SERIAL_TX_BLOCKING, it is necessary to determine + * whether serial device needs to use buffer */ + rt_err_t optmode; /* The operating mode used by serial device */ + /* Call the Control() API to get the operating mode */ + optmode = serial->ops->control(serial, + RT_DEVICE_CHECK_OPTMODE, + (void *)RT_DEVICE_FLAG_TX_BLOCKING); + if (optmode == RT_SERIAL_TX_BLOCKING_BUFFER) + { + /* If use RT_SERIAL_TX_BLOCKING_BUFFER, the ringbuffer is initialized */ + tx_fifo = (struct rt_serial_tx_fifo *) rt_malloc + (sizeof(struct rt_serial_tx_fifo) + serial->config.tx_bufsz); + RT_ASSERT(tx_fifo != RT_NULL); + + rt_ringbuffer_init(&(tx_fifo->rb), + tx_fifo->buffer, + serial->config.tx_bufsz); + serial->serial_tx = tx_fifo; + dev->write = _serial_fifo_tx_blocking_buf; + } + else + { + /* If not use RT_SERIAL_TX_BLOCKING_BUFFER, + * the control() API is called to configure the serial device */ + tx_fifo = (struct rt_serial_tx_fifo*) rt_malloc + (sizeof(struct rt_serial_tx_fifo)); + RT_ASSERT(tx_fifo != RT_NULL); + + serial->serial_tx = tx_fifo; + dev->write = _serial_fifo_tx_blocking_nbuf; + /* Call the control() API to configure the serial device by RT_SERIAL_TX_BLOCKING*/ + serial->ops->control(serial, + RT_DEVICE_CTRL_CONFIG, + (void *)RT_SERIAL_TX_BLOCKING); + } + + tx_fifo->activated = RT_FALSE; + tx_fifo->put_size = 0; + rt_completion_init(&(tx_fifo->tx_cpt)); + dev->open_flag |= RT_SERIAL_TX_BLOCKING; + + return RT_EOK; + } + /* When using RT_SERIAL_TX_NON_BLOCKING, ringbuffer needs to be initialized, + * and initialize the tx_fifo->activated value is RT_FALSE. + */ + tx_fifo = (struct rt_serial_tx_fifo *) rt_malloc + (sizeof(struct rt_serial_tx_fifo) + serial->config.tx_bufsz); + RT_ASSERT(tx_fifo != RT_NULL); + + tx_fifo->activated = RT_FALSE; + tx_fifo->put_size = 0; + rt_ringbuffer_init(&(tx_fifo->rb), + tx_fifo->buffer, + serial->config.tx_bufsz); + serial->serial_tx = tx_fifo; + + dev->write = _serial_fifo_tx_nonblocking; + dev->open_flag |= RT_SERIAL_TX_NON_BLOCKING; + /* Call the control() API to configure the serial device by RT_SERIAL_TX_NON_BLOCKING*/ + serial->ops->control(serial, + RT_DEVICE_CTRL_CONFIG, + (void *)RT_SERIAL_TX_NON_BLOCKING); + + return RT_EOK; +} + + +/** + * @brief Enable serial receive mode. + * @param dev The pointer of device driver structure + * @param rx_oflag The flag of that the serial port opens. + * @return Return the status of the operation. + */ +static rt_err_t rt_serial_rx_enable(struct rt_device *dev, + rt_uint16_t rx_oflag) +{ + struct rt_serial_device *serial; + struct rt_serial_rx_fifo *rx_fifo = RT_NULL; + + RT_ASSERT(dev != RT_NULL); + serial = (struct rt_serial_device *)dev; + + if (serial->config.rx_bufsz == 0) + { + /* Cannot use RT_SERIAL_RX_NON_BLOCKING when rx_bufsz is 0 */ + if (rx_oflag == RT_SERIAL_RX_NON_BLOCKING) + { + LOG_E("(%s) serial device with misconfigure: rx_bufsz = 0", + dev->parent.name); + return -RT_EINVAL; + } + + dev->read = _serial_poll_rx; + dev->open_flag |= RT_SERIAL_RX_BLOCKING; + return RT_EOK; + } + /* Limits the minimum value of rx_bufsz */ + if (serial->config.rx_bufsz < RT_SERIAL_RX_MINBUFSZ) + serial->config.rx_bufsz = RT_SERIAL_RX_MINBUFSZ; + + rx_fifo = (struct rt_serial_rx_fifo *) rt_malloc + (sizeof(struct rt_serial_rx_fifo) + serial->config.rx_bufsz); + + RT_ASSERT(rx_fifo != RT_NULL); + rt_ringbuffer_init(&(rx_fifo->rb), rx_fifo->buffer, serial->config.rx_bufsz); + + serial->serial_rx = rx_fifo; + dev->read = _serial_fifo_rx; + + if (rx_oflag == RT_SERIAL_RX_NON_BLOCKING) + { + dev->open_flag |= RT_SERIAL_RX_NON_BLOCKING; + /* Call the control() API to configure the serial device by RT_SERIAL_RX_NON_BLOCKING*/ + serial->ops->control(serial, + RT_DEVICE_CTRL_CONFIG, + (void *) RT_SERIAL_RX_NON_BLOCKING); + + return RT_EOK; + } + /* When using RT_SERIAL_RX_BLOCKING, rt_completion_init() and rx_cpt_index are initialized */ + rx_fifo->rx_cpt_index = 0; + rt_completion_init(&(rx_fifo->rx_cpt)); + dev->open_flag |= RT_SERIAL_RX_BLOCKING; + /* Call the control() API to configure the serial device by RT_SERIAL_RX_BLOCKING*/ + serial->ops->control(serial, + RT_DEVICE_CTRL_CONFIG, + (void *) RT_SERIAL_RX_BLOCKING); + + return RT_EOK; +} + +/** + * @brief Disable serial receive mode. + * @param dev The pointer of device driver structure + * @param rx_oflag The flag of that the serial port opens. + * @return Return the status of the operation. + */ +static rt_err_t rt_serial_rx_disable(struct rt_device *dev, + rt_uint16_t rx_oflag) +{ + struct rt_serial_device *serial; + struct rt_serial_rx_fifo *rx_fifo; + + RT_ASSERT(dev != RT_NULL); + serial = (struct rt_serial_device *)dev; + + dev->read = RT_NULL; + if (serial->serial_rx == RT_NULL) return RT_EOK; + + do + { + if (rx_oflag == RT_SERIAL_RX_NON_BLOCKING) + { + dev->open_flag &= ~ RT_SERIAL_RX_NON_BLOCKING; + serial->ops->control(serial, + RT_DEVICE_CTRL_CLR_INT, + (void *)RT_SERIAL_RX_NON_BLOCKING); + break; + } + + dev->open_flag &= ~ RT_SERIAL_RX_BLOCKING; + serial->ops->control(serial, + RT_DEVICE_CTRL_CLR_INT, + (void *)RT_SERIAL_RX_BLOCKING); + } while (0); + + rx_fifo = (struct rt_serial_rx_fifo *)serial->serial_rx; + RT_ASSERT(rx_fifo != RT_NULL); + rt_free(rx_fifo); + serial->serial_rx = RT_NULL; + + return RT_EOK; +} + +/** + * @brief Disable serial tranmit mode. + * @param dev The pointer of device driver structure + * @param rx_oflag The flag of that the serial port opens. + * @return Return the status of the operation. + */ +static rt_err_t rt_serial_tx_disable(struct rt_device *dev, + rt_uint16_t tx_oflag) +{ + struct rt_serial_device *serial; + struct rt_serial_tx_fifo *tx_fifo; + + RT_ASSERT(dev != RT_NULL); + serial = (struct rt_serial_device *)dev; + + dev->write = RT_NULL; + if (serial->serial_tx == RT_NULL) return RT_EOK; + + tx_fifo = (struct rt_serial_tx_fifo *)serial->serial_tx; + RT_ASSERT(tx_fifo != RT_NULL); + + do + { + if (tx_oflag == RT_SERIAL_TX_NON_BLOCKING) + { + dev->open_flag &= ~ RT_SERIAL_TX_NON_BLOCKING; + + serial->ops->control(serial, + RT_DEVICE_CTRL_CLR_INT, + (void *)RT_SERIAL_TX_NON_BLOCKING); + break; + } + + rt_completion_done(&(tx_fifo->tx_cpt)); + dev->open_flag &= ~ RT_SERIAL_TX_BLOCKING; + serial->ops->control(serial, + RT_DEVICE_CTRL_CLR_INT, + (void *)RT_SERIAL_TX_BLOCKING); + } while (0); + + rt_free(tx_fifo); + serial->serial_tx = RT_NULL; + + return RT_EOK; +} + +/** + * @brief Initialize the serial device. + * @param dev The pointer of device driver structure + * @return Return the status of the operation. + */ +static rt_err_t rt_serial_init(struct rt_device *dev) +{ + rt_err_t result = RT_EOK; + struct rt_serial_device *serial; + + RT_ASSERT(dev != RT_NULL); + serial = (struct rt_serial_device *)dev; + + /* initialize rx/tx */ + serial->serial_rx = RT_NULL; + serial->serial_tx = RT_NULL; + + /* apply configuration */ + if (serial->ops->configure) + result = serial->ops->configure(serial, &serial->config); + + return result; +} + +/** + * @brief Open the serial device. + * @param dev The pointer of device driver structure + * @param oflag The flag of that the serial port opens. + * @return Return the status of the operation. + */ +static rt_err_t rt_serial_open(struct rt_device *dev, rt_uint16_t oflag) +{ + struct rt_serial_device *serial; + + RT_ASSERT(dev != RT_NULL); + serial = (struct rt_serial_device *)dev; + + /* Check that the device has been turned on */ + if ((dev->open_flag) & (15 << 12)) + { + LOG_D("(%s) serial device has already been opened, it will run in its original configuration", dev->parent.name); + return RT_EOK; + } + + LOG_D("open serial device: 0x%08x with open flag: 0x%04x", + dev, oflag); + + /* By default, the receive mode of a serial devide is RT_SERIAL_RX_NON_BLOCKING */ + if ((oflag & RT_SERIAL_RX_BLOCKING) == RT_SERIAL_RX_BLOCKING) + dev->open_flag |= RT_SERIAL_RX_BLOCKING; + else + dev->open_flag |= RT_SERIAL_RX_NON_BLOCKING; + + /* By default, the transmit mode of a serial devide is RT_SERIAL_TX_BLOCKING */ + if ((oflag & RT_SERIAL_TX_NON_BLOCKING) == RT_SERIAL_TX_NON_BLOCKING) + dev->open_flag |= RT_SERIAL_TX_NON_BLOCKING; + else + dev->open_flag |= RT_SERIAL_TX_BLOCKING; + + /* set steam flag */ + if ((oflag & RT_DEVICE_FLAG_STREAM) || + (dev->open_flag & RT_DEVICE_FLAG_STREAM)) + dev->open_flag |= RT_DEVICE_FLAG_STREAM; + + /* initialize the Rx structure according to open flag */ + if (serial->serial_rx == RT_NULL) + rt_serial_rx_enable(dev, dev->open_flag & + (RT_SERIAL_RX_BLOCKING | RT_SERIAL_RX_NON_BLOCKING)); + + /* initialize the Tx structure according to open flag */ + if (serial->serial_tx == RT_NULL) + rt_serial_tx_enable(dev, dev->open_flag & + (RT_SERIAL_TX_BLOCKING | RT_SERIAL_TX_NON_BLOCKING)); + + return RT_EOK; +} + + +/** + * @brief Close the serial device. + * @param dev The pointer of device driver structure + * @return Return the status of the operation. + */ +static rt_err_t rt_serial_close(struct rt_device *dev) +{ + struct rt_serial_device *serial; + + RT_ASSERT(dev != RT_NULL); + serial = (struct rt_serial_device *)dev; + + /* this device has more reference count */ + if (dev->ref_count > 1) return -RT_ERROR; + /* Disable serial receive mode. */ + rt_serial_rx_disable(dev, dev->open_flag & + (RT_SERIAL_RX_BLOCKING | RT_SERIAL_RX_NON_BLOCKING)); + /* Disable serial tranmit mode. */ + rt_serial_tx_disable(dev, dev->open_flag & + (RT_SERIAL_TX_BLOCKING | RT_SERIAL_TX_NON_BLOCKING)); + + /* Clear the callback function */ + serial->parent.rx_indicate = RT_NULL; + serial->parent.tx_complete = RT_NULL; + + /* Call the control() API to close the serial device */ + serial->ops->control(serial, RT_DEVICE_CTRL_CLOSE, RT_NULL); + dev->flag &= ~RT_DEVICE_FLAG_ACTIVATED; + + return RT_EOK; +} + +/** + * @brief Control the serial device. + * @param dev The pointer of device driver structure + * @param cmd The command value that controls the serial device + * @param args The parameter value that controls the serial device + * @return Return the status of the operation. + */ +static rt_err_t rt_serial_control(struct rt_device *dev, + int cmd, + void *args) +{ + rt_err_t ret = RT_EOK; + struct rt_serial_device *serial; + + RT_ASSERT(dev != RT_NULL); + serial = (struct rt_serial_device *)dev; + + switch (cmd) + { + case RT_DEVICE_CTRL_SUSPEND: + /* suspend device */ + dev->flag |= RT_DEVICE_FLAG_SUSPENDED; + break; + + case RT_DEVICE_CTRL_RESUME: + /* resume device */ + dev->flag &= ~RT_DEVICE_FLAG_SUSPENDED; + break; + + case RT_DEVICE_CTRL_CONFIG: + if (args != RT_NULL) + { + struct serial_configure *pconfig = (struct serial_configure *) args; + if (serial->parent.ref_count) + { + /*can not change buffer size*/ + return -RT_EBUSY; + } + /* set serial configure */ + serial->config = *pconfig; + serial->ops->configure(serial, + (struct serial_configure *) args); + } + + break; + + default : + /* control device */ + ret = serial->ops->control(serial, cmd, args); + break; + } + + return ret; +} + +#ifdef RT_USING_DEVICE_OPS +const static struct rt_device_ops serial_ops = +{ + rt_serial_init, + rt_serial_open, + rt_serial_close, + rt_serial_read, + rt_serial_write, + rt_serial_control +}; +#endif + +/** + * @brief Register the serial device. + * @param serial RT-thread serial device. + * @param name The device driver's name + * @param flag The capabilities flag of device. + * @param data The device driver's data. + * @return Return the status of the operation. + */ +rt_err_t rt_hw_serial_register(struct rt_serial_device *serial, + const char *name, + rt_uint32_t flag, + void *data) +{ + rt_err_t ret; + struct rt_device *device; + RT_ASSERT(serial != RT_NULL); + + device = &(serial->parent); + + device->type = RT_Device_Class_Char; + device->rx_indicate = RT_NULL; + device->tx_complete = RT_NULL; + +#ifdef RT_USING_DEVICE_OPS + device->ops = &serial_ops; +#else + device->init = rt_serial_init; + device->open = rt_serial_open; + device->close = rt_serial_close; + device->read = RT_NULL; + device->write = RT_NULL; + device->control = rt_serial_control; +#endif + device->user_data = data; + + /* register a character device */ + ret = rt_device_register(device, name, flag); + +#if defined(RT_USING_POSIX) + /* set fops */ + device->fops = &_serial_fops; +#endif + return ret; +} + +/** + * @brief ISR for serial interrupt + * @param serial RT-thread serial device. + * @param event ISR event type. + */ +void rt_hw_serial_isr(struct rt_serial_device *serial, int event) +{ + RT_ASSERT(serial != RT_NULL); + + switch (event & 0xff) + { + /* Interrupt receive event */ + case RT_SERIAL_EVENT_RX_IND: + case RT_SERIAL_EVENT_RX_DMADONE: + { + struct rt_serial_rx_fifo *rx_fifo; + rt_size_t rx_length = 0; + rx_fifo = (struct rt_serial_rx_fifo *)serial->serial_rx; + RT_ASSERT(rx_fifo != RT_NULL); + + /* If the event is RT_SERIAL_EVENT_RX_IND, rx_length is equal to 0 */ + rx_length = (event & (~0xff)) >> 8; + + if (rx_length) + rt_serial_update_write_index(&(rx_fifo->rb), rx_length); + + /* Get the length of the data from the ringbuffer */ + rx_length = rt_ringbuffer_data_len(&rx_fifo->rb); + if (rx_length == 0) break; + + if (serial->parent.open_flag & RT_SERIAL_RX_BLOCKING) + { + if (rx_fifo->rx_cpt_index && rx_length >= rx_fifo->rx_cpt_index ) + { + rx_fifo->rx_cpt_index = 0; + rt_completion_done(&(rx_fifo->rx_cpt)); + } + } + /* Trigger the receiving completion callback */ + if (serial->parent.rx_indicate != RT_NULL) + serial->parent.rx_indicate(&(serial->parent), rx_length); + break; + } + + /* Interrupt transmit event */ + case RT_SERIAL_EVENT_TX_DONE: + { + struct rt_serial_tx_fifo *tx_fifo; + rt_size_t tx_length = 0; + tx_fifo = (struct rt_serial_tx_fifo *)serial->serial_tx; + RT_ASSERT(tx_fifo != RT_NULL); + + /* Get the length of the data from the ringbuffer */ + tx_length = rt_ringbuffer_data_len(&tx_fifo->rb); + /* If there is no data in tx_ringbuffer, + * then the transmit completion callback is triggered*/ + if (tx_length == 0) + { + tx_fifo->activated = RT_FALSE; + /* Trigger the transmit completion callback */ + if (serial->parent.tx_complete != RT_NULL) + serial->parent.tx_complete(&serial->parent, RT_NULL); + + if (serial->parent.open_flag & RT_SERIAL_TX_BLOCKING) + rt_completion_done(&(tx_fifo->tx_cpt)); + + break; + } + + /* Call the transmit interface for transmission again */ + /* Note that in interrupt mode, tx_fifo->buffer and tx_length + * are inactive parameters */ + serial->ops->transmit(serial, + tx_fifo->buffer, + tx_length, + serial->parent.open_flag & ( \ + RT_SERIAL_TX_BLOCKING | \ + RT_SERIAL_TX_NON_BLOCKING)); + break; + } + + case RT_SERIAL_EVENT_TX_DMADONE: + { + struct rt_serial_tx_fifo *tx_fifo; + tx_fifo = (struct rt_serial_tx_fifo *)serial->serial_tx; + RT_ASSERT(tx_fifo != RT_NULL); + + tx_fifo->activated = RT_FALSE; + + /* Trigger the transmit completion callback */ + if (serial->parent.tx_complete != RT_NULL) + serial->parent.tx_complete(&serial->parent, RT_NULL); + + if (serial->parent.open_flag & RT_SERIAL_TX_BLOCKING) + { + rt_completion_done(&(tx_fifo->tx_cpt)); + break; + } + + rt_serial_update_read_index(&tx_fifo->rb, tx_fifo->put_size); + /* Get the length of the data from the ringbuffer. + * If there is some data in tx_ringbuffer, + * then call the transmit interface for transmission again */ + if (rt_ringbuffer_data_len(&tx_fifo->rb)) + { + tx_fifo->activated = RT_TRUE; + + rt_uint8_t *put_ptr = RT_NULL; + /* Get the linear length buffer from rinbuffer */ + tx_fifo->put_size = rt_serial_get_linear_buffer(&(tx_fifo->rb), &put_ptr); + /* Call the transmit interface for transmission again */ + serial->ops->transmit(serial, + put_ptr, + tx_fifo->put_size, + RT_SERIAL_TX_NON_BLOCKING); + } + + break; + } + + default: + break; + } +} diff --git a/components/drivers/src/pipe.c b/components/drivers/src/pipe.c index 236c1ffec7..7fa5eb067d 100644 --- a/components/drivers/src/pipe.c +++ b/components/drivers/src/pipe.c @@ -11,11 +11,13 @@ #include <rthw.h> #include <rtdevice.h> #include <stdint.h> +#include <sys/errno.h> -#if defined(RT_USING_POSIX) +#ifdef RT_USING_POSIX #include <dfs_file.h> #include <dfs_posix.h> #include <dfs_poll.h> +#include <sys/ioctl.h> static int pipe_fops_open(struct dfs_fd *fd) { @@ -374,7 +376,7 @@ rt_size_t rt_pipe_read(rt_device_t device, rt_off_t pos, void *buffer, rt_size_t if (device == RT_NULL) { - rt_set_errno(-EINVAL); + rt_set_errno(EINVAL); return 0; } if (count == 0) return 0; @@ -402,7 +404,7 @@ rt_size_t rt_pipe_write(rt_device_t device, rt_off_t pos, const void *buffer, rt if (device == RT_NULL) { - rt_set_errno(-EINVAL); + rt_set_errno(EINVAL); return 0; } if (count == 0) return 0; @@ -516,12 +518,12 @@ int rt_pipe_delete(const char *name) } else { - result = -ENODEV; + result = -RT_EINVAL; } } else { - result = -ENODEV; + result = -RT_EINVAL; } return result; |