diff options
Diffstat (limited to 'drivers/net/wireless/b43/pio.c')
| -rw-r--r-- | drivers/net/wireless/b43/pio.c | 60 |
1 files changed, 38 insertions, 22 deletions
diff --git a/drivers/net/wireless/b43/pio.c b/drivers/net/wireless/b43/pio.c index e96091b3149..9c1397996e0 100644 --- a/drivers/net/wireless/b43/pio.c +++ b/drivers/net/wireless/b43/pio.c @@ -340,10 +340,15 @@ static u16 tx_write_2byte_queue(struct b43_pio_txqueue *q, q->mmio_base + B43_PIO_TXDATA, sizeof(u16)); if (data_len & 1) { + u8 tail[2] = { 0, }; + /* Write the last byte. */ ctl &= ~B43_PIO_TXCTL_WRITEHI; b43_piotx_write16(q, B43_PIO_TXCTL, ctl); - b43_piotx_write16(q, B43_PIO_TXDATA, data[data_len - 1]); + tail[0] = data[data_len - 1]; + ssb_block_write(dev->dev, tail, 2, + q->mmio_base + B43_PIO_TXDATA, + sizeof(u16)); } return ctl; @@ -386,26 +391,31 @@ static u32 tx_write_4byte_queue(struct b43_pio_txqueue *q, q->mmio_base + B43_PIO8_TXDATA, sizeof(u32)); if (data_len & 3) { - u32 value = 0; + u8 tail[4] = { 0, }; /* Write the last few bytes. */ ctl &= ~(B43_PIO8_TXCTL_8_15 | B43_PIO8_TXCTL_16_23 | B43_PIO8_TXCTL_24_31); - data = &(data[data_len - 1]); switch (data_len & 3) { case 3: - ctl |= B43_PIO8_TXCTL_16_23; - value |= (u32)(*data) << 16; - data--; + ctl |= B43_PIO8_TXCTL_16_23 | B43_PIO8_TXCTL_8_15; + tail[0] = data[data_len - 3]; + tail[1] = data[data_len - 2]; + tail[2] = data[data_len - 1]; + break; case 2: ctl |= B43_PIO8_TXCTL_8_15; - value |= (u32)(*data) << 8; - data--; + tail[0] = data[data_len - 2]; + tail[1] = data[data_len - 1]; + break; case 1: - value |= (u32)(*data); + tail[0] = data[data_len - 1]; + break; } b43_piotx_write32(q, B43_PIO8_TXCTL, ctl); - b43_piotx_write32(q, B43_PIO8_TXDATA, value); + ssb_block_write(dev->dev, tail, 4, + q->mmio_base + B43_PIO8_TXDATA, + sizeof(u32)); } return ctl; @@ -693,21 +703,25 @@ data_ready: q->mmio_base + B43_PIO8_RXDATA, sizeof(u32)); if (len & 3) { - u32 value; - char *data; + u8 tail[4] = { 0, }; /* Read the last few bytes. */ - value = b43_piorx_read32(q, B43_PIO8_RXDATA); - data = &(skb->data[len + padding - 1]); + ssb_block_read(dev->dev, tail, 4, + q->mmio_base + B43_PIO8_RXDATA, + sizeof(u32)); switch (len & 3) { case 3: - *data = (value >> 16); - data--; + skb->data[len + padding - 3] = tail[0]; + skb->data[len + padding - 2] = tail[1]; + skb->data[len + padding - 1] = tail[2]; + break; case 2: - *data = (value >> 8); - data--; + skb->data[len + padding - 2] = tail[0]; + skb->data[len + padding - 1] = tail[1]; + break; case 1: - *data = value; + skb->data[len + padding - 1] = tail[0]; + break; } } } else { @@ -715,11 +729,13 @@ data_ready: q->mmio_base + B43_PIO_RXDATA, sizeof(u16)); if (len & 1) { - u16 value; + u8 tail[2] = { 0, }; /* Read the last byte. */ - value = b43_piorx_read16(q, B43_PIO_RXDATA); - skb->data[len + padding - 1] = value; + ssb_block_read(dev->dev, tail, 2, + q->mmio_base + B43_PIO_RXDATA, + sizeof(u16)); + skb->data[len + padding - 1] = tail[0]; } } |