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Commit c6d1d87a authored by Avinash Patil's avatar Avinash Patil Committed by John W. Linville
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mwifiex: add init_fw_port handler for PCIe interface 



This patch adds support for init_fw_port handler for PCIe
interface, which resets RXBD read pointer for PCIe.
This fixes issue where RX doesn't work until some TX from
driver happens.

Signed-off-by: default avatarAvinash Patil <patila@marvell.com>
Signed-off-by: default avatarBing Zhao <bzhao@marvell.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 659c4788

drivers/net/wireless/mwifiex/init.c

+6 −0
Original line number Diff line number Diff line
@@ -591,6 +591,12 @@ int mwifiex_init_fw(struct mwifiex_adapter *adapter) 
				return -1;

		}

	}



	if (adapter->if_ops.init_fw_port) {

		if (adapter->if_ops.init_fw_port(adapter))

			return -1;

	}



	for (i = 0; i < adapter->priv_num; i++) {

		if (adapter->priv[i]) {

			ret = mwifiex_sta_init_cmd(adapter->priv[i], first_sta);

drivers/net/wireless/mwifiex/main.h

+1 −0
Original line number Diff line number Diff line
@@ -599,6 +599,7 @@ struct mwifiex_if_ops { 
	int (*cmdrsp_complete) (struct mwifiex_adapter *, struct sk_buff *);

	int (*event_complete) (struct mwifiex_adapter *, struct sk_buff *);

	int (*data_complete) (struct mwifiex_adapter *, struct sk_buff *);

	int (*init_fw_port) (struct mwifiex_adapter *);

	int (*dnld_fw) (struct mwifiex_adapter *, struct mwifiex_fw_image *);

	void (*card_reset) (struct mwifiex_adapter *);

};

drivers/net/wireless/mwifiex/pcie.c

+18 −2
Original line number Diff line number Diff line
@@ -966,8 +966,23 @@ mwifiex_pcie_send_boot_cmd(struct mwifiex_adapter *adapter, struct sk_buff *skb) 
	return 0;

}



/*

 * This function downloads commands to the device

/* This function init rx port in firmware which in turn enables to receive data

 * from device before transmitting any packet.

 */

static int mwifiex_pcie_init_fw_port(struct mwifiex_adapter *adapter)

{

	struct pcie_service_card *card = adapter->card;



	/* Write the RX ring read pointer in to REG_RXBD_RDPTR */

	if (mwifiex_write_reg(adapter, REG_RXBD_RDPTR, card->rxbd_rdptr | 0)) {

		dev_err(adapter->dev,

			"RECV DATA: failed to write REG_RXBD_RDPTR\n");

		return -1;

	}

	return 0;

}



/* This function downloads commands to the device

 */

static int

mwifiex_pcie_send_cmd(struct mwifiex_adapter *adapter, struct sk_buff *skb)
@@ -1899,6 +1914,7 @@ static struct mwifiex_if_ops pcie_ops = { 
	.event_complete =		mwifiex_pcie_event_complete,

	.update_mp_end_port =		NULL,

	.cleanup_mpa_buf =		NULL,

	.init_fw_port =			mwifiex_pcie_init_fw_port,

};



/*