1.优化api。
This commit is contained in:
21
device/i2c.c
21
device/i2c.c
@@ -50,10 +50,9 @@ static ssize_t mr_i2c_bus_isr(struct mr_dev *dev, int event, void *args)
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case MR_ISR_I2C_RD_INT:
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{
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struct mr_i2c_dev *i2c_dev = (struct mr_i2c_dev *)i2c_bus->owner;
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uint8_t data = 0;
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uint8_t data = ops->read(i2c_bus);
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/* Read data to FIFO. if callback is set, call it */
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ops->read(i2c_bus, &data, sizeof(data));
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mr_ringbuf_push_force(&i2c_dev->rd_fifo, data);
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if (i2c_dev->dev.rd_call.call != MR_NULL)
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{
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@@ -192,16 +191,30 @@ MR_INLINE ssize_t i2c_dev_read(struct mr_i2c_dev *i2c_dev, uint8_t *buf, size_t
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{
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struct mr_i2c_bus *i2c_bus = (struct mr_i2c_bus *)i2c_dev->dev.link;
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struct mr_i2c_bus_ops *ops = (struct mr_i2c_bus_ops *)i2c_bus->dev.drv->ops;
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uint8_t *rd_buf = (uint8_t *)buf;
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ssize_t rd_size = 0;
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return ops->read(i2c_bus, buf, size);
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for (rd_size = 0; rd_size < size; rd_size += sizeof(*rd_buf))
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{
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*rd_buf = ops->read(i2c_bus);
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rd_buf++;
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}
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return rd_size;
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}
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MR_INLINE ssize_t i2c_dev_write(struct mr_i2c_dev *i2c_dev, const uint8_t *buf, size_t size)
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{
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struct mr_i2c_bus *i2c_bus = (struct mr_i2c_bus *)i2c_dev->dev.link;
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struct mr_i2c_bus_ops *ops = (struct mr_i2c_bus_ops *)i2c_bus->dev.drv->ops;
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uint8_t *wr_buf = (uint8_t *)buf;
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ssize_t wr_size = 0;
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return ops->write(i2c_bus, buf, size);
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for (wr_size = 0; wr_size < size; wr_size += sizeof(*wr_buf))
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{
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ops->write(i2c_bus, *wr_buf);
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wr_buf++;
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}
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return wr_size;
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}
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static int mr_i2c_dev_open(struct mr_dev *dev)
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@@ -47,38 +47,47 @@ static ssize_t mr_serial_read(struct mr_dev *dev, int off, void *buf, size_t siz
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{
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struct mr_serial *serial = (struct mr_serial *)dev;
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struct mr_serial_ops *ops = (struct mr_serial_ops *)dev->drv->ops;
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uint8_t *rd_buf = (uint8_t *)buf;
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ssize_t rd_size = 0;
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if (mr_ringbuf_get_bufsz(&serial->rd_fifo) == 0)
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{
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return ops->read(serial, buf, size);
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for (rd_size = 0; rd_size < size; rd_size += sizeof(*rd_buf))
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{
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*rd_buf = ops->read(serial);
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rd_buf++;
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}
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} else
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{
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return (ssize_t)mr_ringbuf_read(&serial->rd_fifo, buf, size);
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rd_size = (ssize_t)mr_ringbuf_read(&serial->rd_fifo, buf, size);
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}
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return rd_size;
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}
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static ssize_t mr_serial_write(struct mr_dev *dev, int off, const void *buf, size_t size, int async)
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{
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struct mr_serial *serial = (struct mr_serial *)dev;
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struct mr_serial_ops *ops = (struct mr_serial_ops *)dev->drv->ops;
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uint8_t *wr_buf = (uint8_t *)buf;
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ssize_t wr_size = 0;
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if ((async == MR_SYNC) || (mr_ringbuf_get_bufsz(&serial->wr_fifo) == 0))
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{
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return ops->write(serial, buf, size);
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for (wr_size = 0; wr_size < size; wr_size += sizeof(*wr_buf))
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{
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ops->write(serial, *wr_buf);
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wr_buf++;
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}
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} else
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{
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if (mr_ringbuf_get_bufsz(&serial->wr_fifo) == 0)
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wr_size = (ssize_t)mr_ringbuf_write(&serial->wr_fifo, buf, size);
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if (wr_size > 0)
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{
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return ops->write(serial, buf, size);
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} else
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{
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ssize_t ret = (ssize_t)mr_ringbuf_write(&serial->wr_fifo, buf, size);
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/* Start interrupt sending */
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ops->start_tx(serial);
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return ret;
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}
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}
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return wr_size;
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}
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static int mr_serial_ioctl(struct mr_dev *dev, int off, int cmd, void *args)
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@@ -183,8 +192,7 @@ static ssize_t mr_serial_isr(struct mr_dev *dev, int event, void *args)
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case MR_ISR_SERIAL_RD_INT:
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{
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/* Read data to FIFO */
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uint8_t data = 0;
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ops->read(serial, &data, sizeof(data));
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uint8_t data = ops->read(serial);
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mr_ringbuf_push_force(&serial->rd_fifo, data);
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return (ssize_t)mr_ringbuf_get_data_size(&serial->rd_fifo);
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@@ -195,7 +203,7 @@ static ssize_t mr_serial_isr(struct mr_dev *dev, int event, void *args)
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uint8_t data = 0;
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if (mr_ringbuf_pop(&serial->wr_fifo, &data) == sizeof(data))
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{
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ops->write(serial, &data, sizeof(data));
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ops->write(serial, data);
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} else
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{
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ops->stop_tx(serial);
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