staging:iio:meter remove stubs from ade7854.
General cleanup and use of standard functions to simplfy some spi reads as well. Also added a device id table to the spi version. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jonathan Cameron
Greg Kroah-Hartman
Родитель
3859faca5e
Коммит
3faa4d3f88
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@ -22,12 +22,10 @@ static int ade7854_spi_write_reg_8(struct device *dev,
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struct spi_message msg;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct spi_transfer xfers[] = {
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{
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.tx_buf = st->tx,
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.bits_per_word = 8,
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.len = 4,
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}
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struct spi_transfer xfer = {
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.tx_buf = st->tx,
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.bits_per_word = 8,
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.len = 4,
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};
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mutex_lock(&st->buf_lock);
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@ -37,7 +35,7 @@ static int ade7854_spi_write_reg_8(struct device *dev,
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st->tx[3] = value & 0xFF;
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spi_message_init(&msg);
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spi_message_add_tail(xfers, &msg);
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spi_message_add_tail(&xfer, &msg);
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ret = spi_sync(st->spi, &msg);
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mutex_unlock(&st->buf_lock);
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@ -52,12 +50,10 @@ static int ade7854_spi_write_reg_16(struct device *dev,
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struct spi_message msg;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct spi_transfer xfers[] = {
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{
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.tx_buf = st->tx,
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.bits_per_word = 8,
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.len = 5,
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}
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struct spi_transfer xfer = {
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.tx_buf = st->tx,
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.bits_per_word = 8,
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.len = 5,
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};
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mutex_lock(&st->buf_lock);
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@ -68,7 +64,7 @@ static int ade7854_spi_write_reg_16(struct device *dev,
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st->tx[4] = value & 0xFF;
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spi_message_init(&msg);
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spi_message_add_tail(xfers, &msg);
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spi_message_add_tail(&xfer, &msg);
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ret = spi_sync(st->spi, &msg);
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mutex_unlock(&st->buf_lock);
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@ -83,12 +79,10 @@ static int ade7854_spi_write_reg_24(struct device *dev,
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struct spi_message msg;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct spi_transfer xfers[] = {
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{
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.tx_buf = st->tx,
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.bits_per_word = 8,
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.len = 6,
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}
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struct spi_transfer xfer = {
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.tx_buf = st->tx,
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.bits_per_word = 8,
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.len = 6,
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};
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mutex_lock(&st->buf_lock);
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@ -100,7 +94,7 @@ static int ade7854_spi_write_reg_24(struct device *dev,
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st->tx[5] = value & 0xFF;
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spi_message_init(&msg);
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spi_message_add_tail(xfers, &msg);
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spi_message_add_tail(&xfer, &msg);
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ret = spi_sync(st->spi, &msg);
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mutex_unlock(&st->buf_lock);
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@ -115,12 +109,10 @@ static int ade7854_spi_write_reg_32(struct device *dev,
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struct spi_message msg;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct spi_transfer xfers[] = {
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{
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.tx_buf = st->tx,
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.bits_per_word = 8,
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.len = 7,
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}
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struct spi_transfer xfer = {
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.tx_buf = st->tx,
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.bits_per_word = 8,
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.len = 7,
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};
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mutex_lock(&st->buf_lock);
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@ -133,7 +125,7 @@ static int ade7854_spi_write_reg_32(struct device *dev,
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st->tx[6] = value & 0xFF;
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spi_message_init(&msg);
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spi_message_add_tail(xfers, &msg);
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spi_message_add_tail(&xfer, &msg);
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ret = spi_sync(st->spi, &msg);
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mutex_unlock(&st->buf_lock);
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@ -152,8 +144,12 @@ static int ade7854_spi_read_reg_8(struct device *dev,
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{
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.tx_buf = st->tx,
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.bits_per_word = 8,
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.len = 4,
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},
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.len = 3,
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}, {
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.rx_buf = st->rx,
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.bits_per_word = 8,
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.len = 1,
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}
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};
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mutex_lock(&st->buf_lock);
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@ -161,17 +157,17 @@ static int ade7854_spi_read_reg_8(struct device *dev,
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st->tx[0] = ADE7854_READ_REG;
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st->tx[1] = (reg_address >> 8) & 0xFF;
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st->tx[2] = reg_address & 0xFF;
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st->tx[3] = 0;
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spi_message_init(&msg);
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spi_message_add_tail(xfers, &msg);
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spi_message_add_tail(&xfers[0], &msg);
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spi_message_add_tail(&xfers[1], &msg);
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ret = spi_sync(st->spi, &msg);
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if (ret) {
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dev_err(&st->spi->dev, "problem when reading 8 bit register 0x%02X",
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reg_address);
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goto error_ret;
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}
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*val = st->rx[3];
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*val = st->rx[0];
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error_ret:
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mutex_unlock(&st->buf_lock);
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@ -190,26 +186,29 @@ static int ade7854_spi_read_reg_16(struct device *dev,
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{
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.tx_buf = st->tx,
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.bits_per_word = 8,
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.len = 5,
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},
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.len = 3,
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}, {
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.rx_buf = st->rx,
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.bits_per_word = 8,
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.len = 2,
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}
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};
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mutex_lock(&st->buf_lock);
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st->tx[0] = ADE7854_READ_REG;
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st->tx[1] = (reg_address >> 8) & 0xFF;
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st->tx[2] = reg_address & 0xFF;
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st->tx[3] = 0;
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st->tx[4] = 0;
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spi_message_init(&msg);
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spi_message_add_tail(xfers, &msg);
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spi_message_add_tail(&xfers[0], &msg);
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spi_message_add_tail(&xfers[1], &msg);
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ret = spi_sync(st->spi, &msg);
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if (ret) {
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dev_err(&st->spi->dev, "problem when reading 16 bit register 0x%02X",
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reg_address);
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goto error_ret;
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}
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*val = (st->rx[3] << 8) | st->rx[4];
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*val = be16_to_cpup((const __be16 *)st->rx);
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error_ret:
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mutex_unlock(&st->buf_lock);
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@ -228,8 +227,12 @@ static int ade7854_spi_read_reg_24(struct device *dev,
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{
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.tx_buf = st->tx,
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.bits_per_word = 8,
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.len = 6,
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},
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.len = 3,
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}, {
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.rx_buf = st->rx,
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.bits_per_word = 8,
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.len = 3,
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}
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};
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mutex_lock(&st->buf_lock);
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@ -237,19 +240,17 @@ static int ade7854_spi_read_reg_24(struct device *dev,
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st->tx[0] = ADE7854_READ_REG;
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st->tx[1] = (reg_address >> 8) & 0xFF;
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st->tx[2] = reg_address & 0xFF;
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st->tx[3] = 0;
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st->tx[4] = 0;
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st->tx[5] = 0;
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spi_message_init(&msg);
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spi_message_add_tail(xfers, &msg);
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spi_message_add_tail(&xfers[0], &msg);
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spi_message_add_tail(&xfers[1], &msg);
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ret = spi_sync(st->spi, &msg);
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if (ret) {
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dev_err(&st->spi->dev, "problem when reading 24 bit register 0x%02X",
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reg_address);
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goto error_ret;
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}
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*val = (st->rx[3] << 16) | (st->rx[4] << 8) | st->rx[5];
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*val = (st->rx[0] << 16) | (st->rx[1] << 8) | st->rx[2];
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error_ret:
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mutex_unlock(&st->buf_lock);
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@ -268,8 +269,12 @@ static int ade7854_spi_read_reg_32(struct device *dev,
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{
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.tx_buf = st->tx,
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.bits_per_word = 8,
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.len = 7,
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},
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.len = 3,
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}, {
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.rx_buf = st->rx,
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.bits_per_word = 8,
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.len = 4,
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}
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};
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mutex_lock(&st->buf_lock);
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@ -277,20 +282,17 @@ static int ade7854_spi_read_reg_32(struct device *dev,
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st->tx[0] = ADE7854_READ_REG;
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st->tx[1] = (reg_address >> 8) & 0xFF;
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st->tx[2] = reg_address & 0xFF;
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st->tx[3] = 0;
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st->tx[4] = 0;
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st->tx[5] = 0;
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st->tx[6] = 0;
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spi_message_init(&msg);
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spi_message_add_tail(xfers, &msg);
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spi_message_add_tail(&xfers[0], &msg);
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spi_message_add_tail(&xfers[1], &msg);
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ret = spi_sync(st->spi, &msg);
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if (ret) {
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dev_err(&st->spi->dev, "problem when reading 32 bit register 0x%02X",
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reg_address);
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goto error_ret;
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}
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*val = (st->rx[3] << 24) | (st->rx[4] << 16) | (st->rx[5] << 8) | st->rx[6];
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*val = be32_to_cpup((const __be32 *)st->rx);
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error_ret:
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mutex_unlock(&st->buf_lock);
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@ -333,6 +335,13 @@ static int ade7854_spi_remove(struct spi_device *spi)
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return 0;
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}
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static const struct spi_device_id ade7854_id[] = {
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{ "ade7854", 0 },
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{ "ade7858", 0 },
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{ "ade7868", 0 },
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{ "ade7878", 0 },
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{ }
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};
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static struct spi_driver ade7854_driver = {
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.driver = {
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@ -341,6 +350,7 @@ static struct spi_driver ade7854_driver = {
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},
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.probe = ade7854_spi_probe,
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.remove = __devexit_p(ade7854_spi_remove),
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.id_table = ade7854_id,
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};
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static __init int ade7854_init(void)
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@ -356,5 +366,5 @@ static __exit void ade7854_exit(void)
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module_exit(ade7854_exit);
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MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
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MODULE_DESCRIPTION("Analog Devices ADE7854/58/68/78 Polyphase Multifunction Energy Metering IC SPI Driver");
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MODULE_DESCRIPTION("Analog Devices ADE7854/58/68/78 SPI Driver");
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MODULE_LICENSE("GPL v2");
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@ -61,7 +61,7 @@ static ssize_t ade7854_read_24bit(struct device *dev,
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char *buf)
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{
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int ret;
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u32 val = 0;
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u32 val;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
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@ -70,7 +70,7 @@ static ssize_t ade7854_read_24bit(struct device *dev,
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if (ret)
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return ret;
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return sprintf(buf, "%u\n", val & 0xFFFFFF);
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return sprintf(buf, "%u\n", val);
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}
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static ssize_t ade7854_read_32bit(struct device *dev,
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@ -178,15 +178,12 @@ static int ade7854_reset(struct device *dev)
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{
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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int ret;
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u16 val;
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st->read_reg_16(dev, ADE7854_CONFIG, &val);
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val |= 1 << 7; /* Software Chip Reset */
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ret = st->write_reg_16(dev, ADE7854_CONFIG, val);
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return ret;
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return st->write_reg_16(dev, ADE7854_CONFIG, val);
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}
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@ -477,14 +474,6 @@ static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("8000");
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static IIO_CONST_ATTR(name, "ade7854");
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static struct attribute *ade7854_event_attributes[] = {
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NULL
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};
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static struct attribute_group ade7854_event_attribute_group = {
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.attrs = ade7854_event_attributes,
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};
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static struct attribute *ade7854_attributes[] = {
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&iio_dev_attr_aigain.dev_attr.attr,
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&iio_dev_attr_bigain.dev_attr.attr,
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@ -564,7 +553,7 @@ static const struct attribute_group ade7854_attribute_group = {
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int ade7854_probe(struct ade7854_state *st, struct device *dev)
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{
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int ret, regdone = 0;
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int ret;
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/* Allocate the comms buffers */
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st->rx = kzalloc(sizeof(*st->rx)*ADE7854_MAX_RX, GFP_KERNEL);
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@ -586,71 +575,34 @@ int ade7854_probe(struct ade7854_state *st, struct device *dev)
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}
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st->indio_dev->dev.parent = dev;
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st->indio_dev->num_interrupt_lines = 1;
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st->indio_dev->event_attrs = &ade7854_event_attribute_group;
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st->indio_dev->attrs = &ade7854_attribute_group;
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st->indio_dev->dev_data = (void *)(st);
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st->indio_dev->driver_module = THIS_MODULE;
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st->indio_dev->modes = INDIO_DIRECT_MODE;
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ret = ade7854_configure_ring(st->indio_dev);
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ret = iio_device_register(st->indio_dev);
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if (ret)
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goto error_free_dev;
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ret = iio_device_register(st->indio_dev);
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if (ret)
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goto error_unreg_ring_funcs;
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regdone = 1;
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ret = ade7854_initialize_ring(st->indio_dev->ring);
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if (ret) {
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printk(KERN_ERR "failed to initialize the ring\n");
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goto error_unreg_ring_funcs;
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}
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if (st->irq) {
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ret = iio_register_interrupt_line(st->irq,
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st->indio_dev,
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0,
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IRQF_TRIGGER_FALLING,
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"ade7854");
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if (ret)
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goto error_uninitialize_ring;
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|
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ret = ade7854_probe_trigger(st->indio_dev);
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if (ret)
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goto error_unregister_line;
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}
|
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/* Get the device into a sane initial state */
|
||||
ret = ade7854_initial_setup(st);
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if (ret)
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goto error_remove_trigger;
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||||
goto error_unreg_dev;
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return 0;
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||||
error_remove_trigger:
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if (st->indio_dev->modes & INDIO_RING_TRIGGERED)
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ade7854_remove_trigger(st->indio_dev);
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error_unregister_line:
|
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if (st->indio_dev->modes & INDIO_RING_TRIGGERED)
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iio_unregister_interrupt_line(st->indio_dev, 0);
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error_uninitialize_ring:
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ade7854_uninitialize_ring(st->indio_dev->ring);
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error_unreg_ring_funcs:
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ade7854_unconfigure_ring(st->indio_dev);
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error_unreg_dev:
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iio_device_unregister(st->indio_dev);
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||||
error_free_dev:
|
||||
if (regdone)
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iio_device_unregister(st->indio_dev);
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else
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||||
iio_free_device(st->indio_dev);
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||||
iio_free_device(st->indio_dev);
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||||
error_free_tx:
|
||||
kfree(st->tx);
|
||||
error_free_rx:
|
||||
kfree(st->rx);
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||||
error_free_st:
|
||||
kfree(st);
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||||
return ret;
|
||||
|
||||
return ret;
|
||||
}
|
||||
EXPORT_SYMBOL(ade7854_probe);
|
||||
|
||||
|
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@ -658,14 +610,6 @@ int ade7854_remove(struct ade7854_state *st)
|
|||
{
|
||||
struct iio_dev *indio_dev = st->indio_dev;
|
||||
|
||||
flush_scheduled_work();
|
||||
|
||||
ade7854_remove_trigger(indio_dev);
|
||||
if (st->irq)
|
||||
iio_unregister_interrupt_line(indio_dev, 0);
|
||||
|
||||
ade7854_uninitialize_ring(indio_dev->ring);
|
||||
ade7854_unconfigure_ring(indio_dev);
|
||||
iio_device_unregister(indio_dev);
|
||||
kfree(st->tx);
|
||||
kfree(st->rx);
|
||||
|
|
@ -676,5 +620,5 @@ int ade7854_remove(struct ade7854_state *st)
|
|||
EXPORT_SYMBOL(ade7854_remove);
|
||||
|
||||
MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
|
||||
MODULE_DESCRIPTION("Analog Devices ADE7854/58/68/78 Polyphase Multifunction Energy Metering IC Driver");
|
||||
MODULE_DESCRIPTION("Analog Devices ADE7854/58/68/78 Polyphase Energy Meter");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
|
|
|
|||
|
|
@ -147,11 +147,7 @@
|
|||
/**
|
||||
* struct ade7854_state - device instance specific data
|
||||
* @spi: actual spi_device
|
||||
* @work_trigger_to_ring: bh for triggered event handling
|
||||
* @inter: used to check if new interrupt has been triggered
|
||||
* @last_timestamp: passing timestamp from th to bh of interrupt handler
|
||||
* @indio_dev: industrial I/O device structure
|
||||
* @trig: data ready trigger registered with iio
|
||||
* @tx: transmit buffer
|
||||
* @rx: recieve buffer
|
||||
* @buf_lock: mutex to protect tx and rx
|
||||
|
|
@ -159,10 +155,7 @@
|
|||
struct ade7854_state {
|
||||
struct spi_device *spi;
|
||||
struct i2c_client *i2c;
|
||||
struct work_struct work_trigger_to_ring;
|
||||
s64 last_timestamp;
|
||||
struct iio_dev *indio_dev;
|
||||
struct iio_trigger *trig;
|
||||
u8 *tx;
|
||||
u8 *rx;
|
||||
int (*read_reg_8) (struct device *, u16, u8 *);
|
||||
|
|
@ -180,66 +173,4 @@ struct ade7854_state {
|
|||
extern int ade7854_probe(struct ade7854_state *st, struct device *dev);
|
||||
extern int ade7854_remove(struct ade7854_state *st);
|
||||
|
||||
#if defined(CONFIG_IIO_RING_BUFFER) && defined(THIS_HAS_RING_BUFFER_SUPPORT)
|
||||
/* At the moment triggers are only used for ring buffer
|
||||
* filling. This may change!
|
||||
*/
|
||||
|
||||
enum ade7854_scan {
|
||||
ADE7854_SCAN_PHA_V,
|
||||
ADE7854_SCAN_PHB_V,
|
||||
ADE7854_SCAN_PHC_V,
|
||||
ADE7854_SCAN_PHA_I,
|
||||
ADE7854_SCAN_PHB_I,
|
||||
ADE7854_SCAN_PHC_I,
|
||||
};
|
||||
|
||||
void ade7854_remove_trigger(struct iio_dev *indio_dev);
|
||||
int ade7854_probe_trigger(struct iio_dev *indio_dev);
|
||||
|
||||
ssize_t ade7854_read_data_from_ring(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf);
|
||||
|
||||
|
||||
int ade7854_configure_ring(struct iio_dev *indio_dev);
|
||||
void ade7854_unconfigure_ring(struct iio_dev *indio_dev);
|
||||
|
||||
int ade7854_initialize_ring(struct iio_ring_buffer *ring);
|
||||
void ade7854_uninitialize_ring(struct iio_ring_buffer *ring);
|
||||
#else /* CONFIG_IIO_RING_BUFFER */
|
||||
|
||||
static inline void ade7854_remove_trigger(struct iio_dev *indio_dev)
|
||||
{
|
||||
}
|
||||
static inline int ade7854_probe_trigger(struct iio_dev *indio_dev)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline ssize_t
|
||||
ade7854_read_data_from_ring(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline int ade7854_configure_ring(struct iio_dev *indio_dev)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline void ade7854_unconfigure_ring(struct iio_dev *indio_dev)
|
||||
{
|
||||
}
|
||||
static inline int ade7854_initialize_ring(struct iio_ring_buffer *ring)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
static inline void ade7854_uninitialize_ring(struct iio_ring_buffer *ring)
|
||||
{
|
||||
}
|
||||
#endif /* CONFIG_IIO_RING_BUFFER */
|
||||
|
||||
#endif
|
||||
|
|
|
|||
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