diff options
Diffstat (limited to 'drivers/spi/spidev.c')
| -rw-r--r-- | drivers/spi/spidev.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index ca5bcfe874d..e3bc23bb588 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -37,7 +37,7 @@ #include <linux/spi/spi.h> #include <linux/spi/spidev.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> /* @@ -73,7 +73,8 @@ static DECLARE_BITMAP(minors, N_SPI_MINORS); */ #define SPI_MODE_MASK (SPI_CPHA | SPI_CPOL | SPI_CS_HIGH \ | SPI_LSB_FIRST | SPI_3WIRE | SPI_LOOP \ - | SPI_NO_CS | SPI_READY) + | SPI_NO_CS | SPI_READY | SPI_TX_DUAL \ + | SPI_TX_QUAD | SPI_RX_DUAL | SPI_RX_QUAD) struct spidev_data { dev_t devt; @@ -206,9 +207,9 @@ spidev_write(struct file *filp, const char __user *buf, mutex_lock(&spidev->buf_lock); missing = copy_from_user(spidev->buffer, buf, count); - if (missing == 0) { + if (missing == 0) status = spidev_sync_write(spidev, count); - } else + else status = -EFAULT; mutex_unlock(&spidev->buf_lock); @@ -265,6 +266,8 @@ static int spidev_message(struct spidev_data *spidev, buf += k_tmp->len; k_tmp->cs_change = !!u_tmp->cs_change; + k_tmp->tx_nbits = u_tmp->tx_nbits; + k_tmp->rx_nbits = u_tmp->rx_nbits; k_tmp->bits_per_word = u_tmp->bits_per_word; k_tmp->delay_usecs = u_tmp->delay_usecs; k_tmp->speed_hz = u_tmp->speed_hz; @@ -359,6 +362,10 @@ spidev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) retval = __put_user(spi->mode & SPI_MODE_MASK, (__u8 __user *)arg); break; + case SPI_IOC_RD_MODE32: + retval = __put_user(spi->mode & SPI_MODE_MASK, + (__u32 __user *)arg); + break; case SPI_IOC_RD_LSB_FIRST: retval = __put_user((spi->mode & SPI_LSB_FIRST) ? 1 : 0, (__u8 __user *)arg); @@ -372,9 +379,13 @@ spidev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) /* write requests */ case SPI_IOC_WR_MODE: - retval = __get_user(tmp, (u8 __user *)arg); + case SPI_IOC_WR_MODE32: + if (cmd == SPI_IOC_WR_MODE) + retval = __get_user(tmp, (u8 __user *)arg); + else + retval = __get_user(tmp, (u32 __user *)arg); if (retval == 0) { - u8 save = spi->mode; + u32 save = spi->mode; if (tmp & ~SPI_MODE_MASK) { retval = -EINVAL; @@ -382,18 +393,18 @@ spidev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) } tmp |= spi->mode & ~SPI_MODE_MASK; - spi->mode = (u8)tmp; + spi->mode = (u16)tmp; retval = spi_setup(spi); if (retval < 0) spi->mode = save; else - dev_dbg(&spi->dev, "spi mode %02x\n", tmp); + dev_dbg(&spi->dev, "spi mode %x\n", tmp); } break; case SPI_IOC_WR_LSB_FIRST: retval = __get_user(tmp, (__u8 __user *)arg); if (retval == 0) { - u8 save = spi->mode; + u32 save = spi->mode; if (tmp) spi->mode |= SPI_LSB_FIRST; @@ -629,7 +640,6 @@ static int spidev_remove(struct spi_device *spi) /* make sure ops on existing fds can abort cleanly */ spin_lock_irq(&spidev->spi_lock); spidev->spi = NULL; - spi_set_drvdata(spi, NULL); spin_unlock_irq(&spidev->spi_lock); /* prevent new opens */ |