From 30e2dd798dbd5929f981ec0c77ab8567e8859ad9 Mon Sep 17 00:00:00 2001 From: Arik Nemtsov Date: Thu, 10 May 2012 12:13:24 +0300 Subject: [PATCH] wl18xx: implement hw op for getting rx packet data length Implement the 18xx-specific way for getting the length of a Rx packet. Signed-off-by: Arik Nemtsov Signed-off-by: Luciano Coelho --- drivers/net/wireless/ti/wl18xx/main.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c index fef872608e00..40ed53c02866 100644 --- a/drivers/net/wireless/ti/wl18xx/main.c +++ b/drivers/net/wireless/ti/wl18xx/main.c @@ -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) -- 2.20.1