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wl18xx: implement hw op for getting rx packet data length

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Implement the 18xx-specific way for getting the length of a Rx packet.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Arik Nemtsov 2012-05-10 12:13:24 +03:00 committed by Luciano Coelho
parent 9c809f8883
commit 30e2dd798d
1 changed files with 12 additions and 0 deletions
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12
drivers/net/wireless/ti/wl18xx/main.c
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@ -458,6 +458,17 @@ wl18xx_get_rx_buf_align(struct wl1271 *wl, u32 rx_desc)
return WLCORE_RX_BUF_ALIGNED;
}
static u32 wl18xx_get_rx_packet_len(struct wl1271 *wl, void *rx_data,
u32 data_len)
{
struct wl1271_rx_descriptor *desc = rx_data;
/* invalid packet */
if (data_len < sizeof(*desc))
return 0;
return data_len - sizeof(*desc);
}
static struct wlcore_ops wl18xx_ops = {
.identify_chip = wl18xx_identify_chip,
@ -468,6 +479,7 @@ static struct wlcore_ops wl18xx_ops = {
.set_tx_desc_blocks = wl18xx_set_tx_desc_blocks,
.set_tx_desc_data_len = wl18xx_set_tx_desc_data_len,
.get_rx_buf_align = wl18xx_get_rx_buf_align,
.get_rx_packet_len = wl18xx_get_rx_packet_len,
};
int __devinit wl18xx_probe(struct platform_device *pdev)