forked from Minki/linux
libertas_tf: command helper functions for libertas_tf
Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis Carlos Cobo
John W. Linville
parent
06b16ae531
commit
691cdb4938
669
drivers/net/wireless/libertas_tf/cmd.c
Normal file
669
drivers/net/wireless/libertas_tf/cmd.c
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@ -0,0 +1,669 @@
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/*
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* Copyright (C) 2008, cozybit Inc.
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* Copyright (C) 2003-2006, Marvell International Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*/
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#include "libertas_tf.h"
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static const struct channel_range channel_ranges[] = {
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{ LBTF_REGDOMAIN_US, 1, 12 },
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{ LBTF_REGDOMAIN_CA, 1, 12 },
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{ LBTF_REGDOMAIN_EU, 1, 14 },
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{ LBTF_REGDOMAIN_JP, 1, 14 },
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{ LBTF_REGDOMAIN_SP, 1, 14 },
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{ LBTF_REGDOMAIN_FR, 1, 14 },
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};
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static u16 lbtf_region_code_to_index[MRVDRV_MAX_REGION_CODE] =
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{
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LBTF_REGDOMAIN_US, LBTF_REGDOMAIN_CA, LBTF_REGDOMAIN_EU,
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LBTF_REGDOMAIN_SP, LBTF_REGDOMAIN_FR, LBTF_REGDOMAIN_JP,
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};
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static struct cmd_ctrl_node *lbtf_get_cmd_ctrl_node(struct lbtf_private *priv);
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/**
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* lbtf_cmd_copyback - Simple callback that copies response back into command
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*
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* @priv A pointer to struct lbtf_private structure
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* @extra A pointer to the original command structure for which
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* 'resp' is a response
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* @resp A pointer to the command response
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*
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* Returns: 0 on success, error on failure
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*/
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int lbtf_cmd_copyback(struct lbtf_private *priv, unsigned long extra,
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struct cmd_header *resp)
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{
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struct cmd_header *buf = (void *)extra;
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uint16_t copy_len;
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copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
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memcpy(buf, resp, copy_len);
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return 0;
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}
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EXPORT_SYMBOL_GPL(lbtf_cmd_copyback);
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#define CHAN_TO_IDX(chan) ((chan) - 1)
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static void lbtf_geo_init(struct lbtf_private *priv)
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{
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const struct channel_range *range = channel_ranges;
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u8 ch;
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int i;
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for (i = 0; i < ARRAY_SIZE(channel_ranges); i++)
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if (channel_ranges[i].regdomain == priv->regioncode) {
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range = &channel_ranges[i];
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break;
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}
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for (ch = priv->range.start; ch < priv->range.end; ch++)
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priv->channels[CHAN_TO_IDX(ch)].flags = 0;
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}
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/**
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* lbtf_update_hw_spec: Updates the hardware details.
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*
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* @priv A pointer to struct lbtf_private structure
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*
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* Returns: 0 on success, error on failure
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*/
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int lbtf_update_hw_spec(struct lbtf_private *priv)
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{
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struct cmd_ds_get_hw_spec cmd;
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int ret = -1;
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u32 i;
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DECLARE_MAC_BUF(mac);
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memset(&cmd, 0, sizeof(cmd));
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cmd.hdr.size = cpu_to_le16(sizeof(cmd));
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memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
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ret = lbtf_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
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if (ret)
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goto out;
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priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
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/* The firmware release is in an interesting format: the patch
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* level is in the most significant nibble ... so fix that: */
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priv->fwrelease = le32_to_cpu(cmd.fwrelease);
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priv->fwrelease = (priv->fwrelease << 8) |
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(priv->fwrelease >> 24 & 0xff);
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printk(KERN_INFO "libertastf: %s, fw %u.%u.%up%u, cap 0x%08x\n",
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print_mac(mac, cmd.permanentaddr),
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priv->fwrelease >> 24 & 0xff,
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priv->fwrelease >> 16 & 0xff,
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priv->fwrelease >> 8 & 0xff,
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priv->fwrelease & 0xff,
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priv->fwcapinfo);
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/* Clamp region code to 8-bit since FW spec indicates that it should
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* only ever be 8-bit, even though the field size is 16-bit. Some
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* firmware returns non-zero high 8 bits here.
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*/
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priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
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for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
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/* use the region code to search for the index */
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if (priv->regioncode == lbtf_region_code_to_index[i])
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break;
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}
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/* if it's unidentified region code, use the default (USA) */
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if (i >= MRVDRV_MAX_REGION_CODE)
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priv->regioncode = 0x10;
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if (priv->current_addr[0] == 0xff)
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memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
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SET_IEEE80211_PERM_ADDR(priv->hw, priv->current_addr);
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lbtf_geo_init(priv);
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out:
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return ret;
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}
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/**
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* lbtf_set_channel: Set the radio channel
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*
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* @priv A pointer to struct lbtf_private structure
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* @channel The desired channel, or 0 to clear a locked channel
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*
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* Returns: 0 on success, error on failure
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*/
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int lbtf_set_channel(struct lbtf_private *priv, u8 channel)
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{
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struct cmd_ds_802_11_rf_channel cmd;
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cmd.hdr.size = cpu_to_le16(sizeof(cmd));
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cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
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cmd.channel = cpu_to_le16(channel);
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return lbtf_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
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}
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int lbtf_beacon_set(struct lbtf_private *priv, struct sk_buff *beacon)
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{
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struct cmd_ds_802_11_beacon_set cmd;
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int size;
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if (beacon->len > MRVL_MAX_BCN_SIZE)
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return -1;
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size = sizeof(cmd) - sizeof(cmd.beacon) + beacon->len;
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cmd.hdr.size = cpu_to_le16(size);
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cmd.len = cpu_to_le16(beacon->len);
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memcpy(cmd.beacon, (u8 *) beacon->data, beacon->len);
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lbtf_cmd_async(priv, CMD_802_11_BEACON_SET, &cmd.hdr, size);
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return 0;
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}
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int lbtf_beacon_ctrl(struct lbtf_private *priv, bool beacon_enable,
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int beacon_int) {
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struct cmd_ds_802_11_beacon_control cmd;
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cmd.hdr.size = cpu_to_le16(sizeof(cmd));
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cmd.action = cpu_to_le16(CMD_ACT_SET);
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cmd.beacon_enable = cpu_to_le16(beacon_enable);
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cmd.beacon_period = cpu_to_le16(beacon_int);
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lbtf_cmd_async(priv, CMD_802_11_BEACON_CTRL, &cmd.hdr, sizeof(cmd));
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return 0;
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}
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static void lbtf_queue_cmd(struct lbtf_private *priv,
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struct cmd_ctrl_node *cmdnode)
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{
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unsigned long flags;
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if (!cmdnode)
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return;
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if (!cmdnode->cmdbuf->size)
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return;
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cmdnode->result = 0;
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spin_lock_irqsave(&priv->driver_lock, flags);
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list_add_tail(&cmdnode->list, &priv->cmdpendingq);
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spin_unlock_irqrestore(&priv->driver_lock, flags);
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}
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static void lbtf_submit_command(struct lbtf_private *priv,
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struct cmd_ctrl_node *cmdnode)
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{
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unsigned long flags;
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struct cmd_header *cmd;
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uint16_t cmdsize;
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uint16_t command;
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int timeo = 5 * HZ;
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int ret;
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cmd = cmdnode->cmdbuf;
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spin_lock_irqsave(&priv->driver_lock, flags);
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priv->cur_cmd = cmdnode;
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cmdsize = le16_to_cpu(cmd->size);
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command = le16_to_cpu(cmd->command);
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ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
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spin_unlock_irqrestore(&priv->driver_lock, flags);
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if (ret)
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/* Let the timer kick in and retry, and potentially reset
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the whole thing if the condition persists */
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timeo = HZ;
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/* Setup the timer after transmit command */
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mod_timer(&priv->command_timer, jiffies + timeo);
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}
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/**
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* This function inserts command node to cmdfreeq
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* after cleans it. Requires priv->driver_lock held.
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*/
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static void __lbtf_cleanup_and_insert_cmd(struct lbtf_private *priv,
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struct cmd_ctrl_node *cmdnode)
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{
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if (!cmdnode)
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return;
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cmdnode->callback = NULL;
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cmdnode->callback_arg = 0;
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memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
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list_add_tail(&cmdnode->list, &priv->cmdfreeq);
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}
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static void lbtf_cleanup_and_insert_cmd(struct lbtf_private *priv,
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struct cmd_ctrl_node *ptempcmd)
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{
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unsigned long flags;
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spin_lock_irqsave(&priv->driver_lock, flags);
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__lbtf_cleanup_and_insert_cmd(priv, ptempcmd);
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spin_unlock_irqrestore(&priv->driver_lock, flags);
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}
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void lbtf_complete_command(struct lbtf_private *priv, struct cmd_ctrl_node *cmd,
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int result)
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{
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cmd->result = result;
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cmd->cmdwaitqwoken = 1;
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wake_up_interruptible(&cmd->cmdwait_q);
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if (!cmd->callback)
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__lbtf_cleanup_and_insert_cmd(priv, cmd);
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priv->cur_cmd = NULL;
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}
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int lbtf_cmd_set_mac_multicast_addr(struct lbtf_private *priv)
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{
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struct cmd_ds_mac_multicast_addr cmd;
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cmd.hdr.size = cpu_to_le16(sizeof(cmd));
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cmd.action = cpu_to_le16(CMD_ACT_SET);
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cmd.nr_of_adrs = cpu_to_le16((u16) priv->nr_of_multicastmacaddr);
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memcpy(cmd.maclist, priv->multicastlist,
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priv->nr_of_multicastmacaddr * ETH_ALEN);
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lbtf_cmd_async(priv, CMD_MAC_MULTICAST_ADR, &cmd.hdr, sizeof(cmd));
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return 0;
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}
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void lbtf_set_mode(struct lbtf_private *priv, enum lbtf_mode mode)
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{
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struct cmd_ds_set_mode cmd;
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cmd.hdr.size = cpu_to_le16(sizeof(cmd));
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cmd.mode = cpu_to_le16(mode);
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lbtf_cmd_async(priv, CMD_802_11_SET_MODE, &cmd.hdr, sizeof(cmd));
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}
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void lbtf_set_bssid(struct lbtf_private *priv, bool activate, u8 *bssid)
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{
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struct cmd_ds_set_bssid cmd;
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cmd.hdr.size = cpu_to_le16(sizeof(cmd));
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cmd.activate = activate ? 1 : 0;
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if (activate)
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memcpy(cmd.bssid, bssid, ETH_ALEN);
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lbtf_cmd_async(priv, CMD_802_11_SET_BSSID, &cmd.hdr, sizeof(cmd));
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}
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int lbtf_set_mac_address(struct lbtf_private *priv, uint8_t *mac_addr)
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{
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struct cmd_ds_802_11_mac_address cmd;
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cmd.hdr.size = cpu_to_le16(sizeof(cmd));
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cmd.action = cpu_to_le16(CMD_ACT_SET);
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memcpy(cmd.macadd, mac_addr, ETH_ALEN);
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lbtf_cmd_async(priv, CMD_802_11_MAC_ADDRESS, &cmd.hdr, sizeof(cmd));
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return 0;
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}
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int lbtf_set_radio_control(struct lbtf_private *priv)
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{
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int ret = 0;
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struct cmd_ds_802_11_radio_control cmd;
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cmd.hdr.size = cpu_to_le16(sizeof(cmd));
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cmd.action = cpu_to_le16(CMD_ACT_SET);
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switch (priv->preamble) {
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case CMD_TYPE_SHORT_PREAMBLE:
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cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
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break;
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case CMD_TYPE_LONG_PREAMBLE:
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cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
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break;
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case CMD_TYPE_AUTO_PREAMBLE:
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default:
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cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
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break;
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}
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if (priv->radioon)
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cmd.control |= cpu_to_le16(TURN_ON_RF);
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else
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cmd.control &= cpu_to_le16(~TURN_ON_RF);
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ret = lbtf_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
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return ret;
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}
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void lbtf_set_mac_control(struct lbtf_private *priv)
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{
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struct cmd_ds_mac_control cmd;
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cmd.hdr.size = cpu_to_le16(sizeof(cmd));
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cmd.action = cpu_to_le16(priv->mac_control);
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cmd.reserved = 0;
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lbtf_cmd_async(priv, CMD_MAC_CONTROL,
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&cmd.hdr, sizeof(cmd));
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}
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/**
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* lbtf_allocate_cmd_buffer - Allocates cmd buffer, links it to free cmd queue
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*
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* @priv A pointer to struct lbtf_private structure
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*
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* Returns: 0 on success.
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*/
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int lbtf_allocate_cmd_buffer(struct lbtf_private *priv)
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{
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u32 bufsize;
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u32 i;
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struct cmd_ctrl_node *cmdarray;
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/* Allocate and initialize the command array */
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bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
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cmdarray = kzalloc(bufsize, GFP_KERNEL);
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if (!cmdarray)
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return -1;
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priv->cmd_array = cmdarray;
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/* Allocate and initialize each command buffer in the command array */
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for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
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cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
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if (!cmdarray[i].cmdbuf)
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return -1;
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}
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for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
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init_waitqueue_head(&cmdarray[i].cmdwait_q);
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lbtf_cleanup_and_insert_cmd(priv, &cmdarray[i]);
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}
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return 0;
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}
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/**
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* lbtf_free_cmd_buffer - Frees the cmd buffer.
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*
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* @priv A pointer to struct lbtf_private structure
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*
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* Returns: 0
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*/
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int lbtf_free_cmd_buffer(struct lbtf_private *priv)
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{
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struct cmd_ctrl_node *cmdarray;
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unsigned int i;
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/* need to check if cmd array is allocated or not */
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if (priv->cmd_array == NULL)
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return 0;
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cmdarray = priv->cmd_array;
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/* Release shared memory buffers */
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for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
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kfree(cmdarray[i].cmdbuf);
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cmdarray[i].cmdbuf = NULL;
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}
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/* Release cmd_ctrl_node */
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kfree(priv->cmd_array);
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priv->cmd_array = NULL;
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return 0;
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}
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/**
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* lbtf_get_cmd_ctrl_node - Gets free cmd node from free cmd queue.
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*
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* @priv A pointer to struct lbtf_private structure
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*
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* Returns: pointer to a struct cmd_ctrl_node or NULL if none available.
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*/
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static struct cmd_ctrl_node *lbtf_get_cmd_ctrl_node(struct lbtf_private *priv)
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{
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struct cmd_ctrl_node *tempnode;
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unsigned long flags;
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if (!priv)
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return NULL;
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spin_lock_irqsave(&priv->driver_lock, flags);
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if (!list_empty(&priv->cmdfreeq)) {
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tempnode = list_first_entry(&priv->cmdfreeq,
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struct cmd_ctrl_node, list);
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list_del(&tempnode->list);
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} else
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tempnode = NULL;
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spin_unlock_irqrestore(&priv->driver_lock, flags);
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return tempnode;
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}
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/**
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* lbtf_execute_next_command: execute next command in cmd pending queue.
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*
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* @priv A pointer to struct lbtf_private structure
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*
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* Returns: 0 on success.
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*/
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int lbtf_execute_next_command(struct lbtf_private *priv)
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{
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struct cmd_ctrl_node *cmdnode = NULL;
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struct cmd_header *cmd;
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||||
unsigned long flags;
|
||||
|
||||
/* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
|
||||
* only caller to us is lbtf_thread() and we get even when a
|
||||
* data packet is received */
|
||||
|
||||
spin_lock_irqsave(&priv->driver_lock, flags);
|
||||
|
||||
if (priv->cur_cmd) {
|
||||
spin_unlock_irqrestore(&priv->driver_lock, flags);
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (!list_empty(&priv->cmdpendingq)) {
|
||||
cmdnode = list_first_entry(&priv->cmdpendingq,
|
||||
struct cmd_ctrl_node, list);
|
||||
}
|
||||
|
||||
if (cmdnode) {
|
||||
cmd = cmdnode->cmdbuf;
|
||||
|
||||
list_del(&cmdnode->list);
|
||||
spin_unlock_irqrestore(&priv->driver_lock, flags);
|
||||
lbtf_submit_command(priv, cmdnode);
|
||||
} else
|
||||
spin_unlock_irqrestore(&priv->driver_lock, flags);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct cmd_ctrl_node *__lbtf_cmd_async(struct lbtf_private *priv,
|
||||
uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
|
||||
int (*callback)(struct lbtf_private *, unsigned long,
|
||||
struct cmd_header *),
|
||||
unsigned long callback_arg)
|
||||
{
|
||||
struct cmd_ctrl_node *cmdnode;
|
||||
|
||||
if (priv->surpriseremoved)
|
||||
return ERR_PTR(-ENOENT);
|
||||
|
||||
cmdnode = lbtf_get_cmd_ctrl_node(priv);
|
||||
if (cmdnode == NULL) {
|
||||
/* Wake up main thread to execute next command */
|
||||
queue_work(lbtf_wq, &priv->cmd_work);
|
||||
return ERR_PTR(-ENOBUFS);
|
||||
}
|
||||
|
||||
cmdnode->callback = callback;
|
||||
cmdnode->callback_arg = callback_arg;
|
||||
|
||||
/* Copy the incoming command to the buffer */
|
||||
memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
|
||||
|
||||
/* Set sequence number, clean result, move to buffer */
|
||||
priv->seqnum++;
|
||||
cmdnode->cmdbuf->command = cpu_to_le16(command);
|
||||
cmdnode->cmdbuf->size = cpu_to_le16(in_cmd_size);
|
||||
cmdnode->cmdbuf->seqnum = cpu_to_le16(priv->seqnum);
|
||||
cmdnode->cmdbuf->result = 0;
|
||||
cmdnode->cmdwaitqwoken = 0;
|
||||
lbtf_queue_cmd(priv, cmdnode);
|
||||
queue_work(lbtf_wq, &priv->cmd_work);
|
||||
|
||||
return cmdnode;
|
||||
}
|
||||
|
||||
void lbtf_cmd_async(struct lbtf_private *priv, uint16_t command,
|
||||
struct cmd_header *in_cmd, int in_cmd_size)
|
||||
{
|
||||
__lbtf_cmd_async(priv, command, in_cmd, in_cmd_size, NULL, 0);
|
||||
}
|
||||
|
||||
int __lbtf_cmd(struct lbtf_private *priv, uint16_t command,
|
||||
struct cmd_header *in_cmd, int in_cmd_size,
|
||||
int (*callback)(struct lbtf_private *,
|
||||
unsigned long, struct cmd_header *),
|
||||
unsigned long callback_arg)
|
||||
{
|
||||
struct cmd_ctrl_node *cmdnode;
|
||||
unsigned long flags;
|
||||
int ret = 0;
|
||||
|
||||
cmdnode = __lbtf_cmd_async(priv, command, in_cmd, in_cmd_size,
|
||||
callback, callback_arg);
|
||||
if (IS_ERR(cmdnode))
|
||||
return PTR_ERR(cmdnode);
|
||||
|
||||
might_sleep();
|
||||
ret = wait_event_interruptible(cmdnode->cmdwait_q,
|
||||
cmdnode->cmdwaitqwoken);
|
||||
if (ret) {
|
||||
printk(KERN_DEBUG
|
||||
"libertastf: command 0x%04x interrupted by signal",
|
||||
command);
|
||||
return ret;
|
||||
}
|
||||
|
||||
spin_lock_irqsave(&priv->driver_lock, flags);
|
||||
ret = cmdnode->result;
|
||||
if (ret)
|
||||
printk(KERN_DEBUG "libertastf: command 0x%04x failed: %d\n",
|
||||
command, ret);
|
||||
|
||||
__lbtf_cleanup_and_insert_cmd(priv, cmdnode);
|
||||
spin_unlock_irqrestore(&priv->driver_lock, flags);
|
||||
|
||||
return ret;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(__lbtf_cmd);
|
||||
|
||||
/* Call holding driver_lock */
|
||||
void lbtf_cmd_response_rx(struct lbtf_private *priv)
|
||||
{
|
||||
priv->cmd_response_rxed = 1;
|
||||
queue_work(lbtf_wq, &priv->cmd_work);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(lbtf_cmd_response_rx);
|
||||
|
||||
int lbtf_process_rx_command(struct lbtf_private *priv)
|
||||
{
|
||||
uint16_t respcmd, curcmd;
|
||||
struct cmd_header *resp;
|
||||
int ret = 0;
|
||||
unsigned long flags;
|
||||
uint16_t result;
|
||||
|
||||
mutex_lock(&priv->lock);
|
||||
spin_lock_irqsave(&priv->driver_lock, flags);
|
||||
|
||||
if (!priv->cur_cmd) {
|
||||
ret = -1;
|
||||
spin_unlock_irqrestore(&priv->driver_lock, flags);
|
||||
goto done;
|
||||
}
|
||||
|
||||
resp = (void *)priv->cmd_resp_buff;
|
||||
curcmd = le16_to_cpu(priv->cur_cmd->cmdbuf->command);
|
||||
respcmd = le16_to_cpu(resp->command);
|
||||
result = le16_to_cpu(resp->result);
|
||||
|
||||
if (net_ratelimit())
|
||||
printk(KERN_DEBUG "libertastf: cmd response 0x%04x, seq %d, size %d\n",
|
||||
respcmd, le16_to_cpu(resp->seqnum),
|
||||
le16_to_cpu(resp->size));
|
||||
|
||||
if (resp->seqnum != priv->cur_cmd->cmdbuf->seqnum) {
|
||||
spin_unlock_irqrestore(&priv->driver_lock, flags);
|
||||
ret = -1;
|
||||
goto done;
|
||||
}
|
||||
if (respcmd != CMD_RET(curcmd)) {
|
||||
spin_unlock_irqrestore(&priv->driver_lock, flags);
|
||||
ret = -1;
|
||||
goto done;
|
||||
}
|
||||
|
||||
if (resp->result == cpu_to_le16(0x0004)) {
|
||||
/* 0x0004 means -EAGAIN. Drop the response, let it time out
|
||||
and be resubmitted */
|
||||
spin_unlock_irqrestore(&priv->driver_lock, flags);
|
||||
ret = -1;
|
||||
goto done;
|
||||
}
|
||||
|
||||
/* Now we got response from FW, cancel the command timer */
|
||||
del_timer(&priv->command_timer);
|
||||
priv->cmd_timed_out = 0;
|
||||
if (priv->nr_retries)
|
||||
priv->nr_retries = 0;
|
||||
|
||||
/* If the command is not successful, cleanup and return failure */
|
||||
if ((result != 0 || !(respcmd & 0x8000))) {
|
||||
/*
|
||||
* Handling errors here
|
||||
*/
|
||||
switch (respcmd) {
|
||||
case CMD_RET(CMD_GET_HW_SPEC):
|
||||
case CMD_RET(CMD_802_11_RESET):
|
||||
printk(KERN_DEBUG "libertastf: reset failed\n");
|
||||
break;
|
||||
|
||||
}
|
||||
lbtf_complete_command(priv, priv->cur_cmd, result);
|
||||
spin_unlock_irqrestore(&priv->driver_lock, flags);
|
||||
|
||||
ret = -1;
|
||||
goto done;
|
||||
}
|
||||
|
||||
spin_unlock_irqrestore(&priv->driver_lock, flags);
|
||||
|
||||
if (priv->cur_cmd && priv->cur_cmd->callback) {
|
||||
ret = priv->cur_cmd->callback(priv, priv->cur_cmd->callback_arg,
|
||||
resp);
|
||||
}
|
||||
spin_lock_irqsave(&priv->driver_lock, flags);
|
||||
|
||||
if (priv->cur_cmd) {
|
||||
/* Clean up and Put current command back to cmdfreeq */
|
||||
lbtf_complete_command(priv, priv->cur_cmd, result);
|
||||
}
|
||||
spin_unlock_irqrestore(&priv->driver_lock, flags);
|
||||
|
||||
done:
|
||||
mutex_unlock(&priv->lock);
|
||||
return ret;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user