2008-08-14 17:41:01 +00:00
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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 cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 08:04:11 +00:00
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#include <linux/slab.h>
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2008-08-14 17:41:01 +00:00
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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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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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2008-10-27 22:59:26 +00:00
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printk(KERN_INFO "libertastf: %pM, fw %u.%u.%up%u, cap 0x%08x\n",
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cmd.permanentaddr,
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2008-08-14 17:41:01 +00:00
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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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2009-01-21 11:47:05 +00:00
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void lbtf_set_bssid(struct lbtf_private *priv, bool activate, const u8 *bssid)
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2008-08-14 17:41:01 +00:00
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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));
|
|
|
|
cmd.action = cpu_to_le16(CMD_ACT_SET);
|
|
|
|
|
|
|
|
memcpy(cmd.macadd, mac_addr, ETH_ALEN);
|
|
|
|
|
|
|
|
lbtf_cmd_async(priv, CMD_802_11_MAC_ADDRESS, &cmd.hdr, sizeof(cmd));
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int lbtf_set_radio_control(struct lbtf_private *priv)
|
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
struct cmd_ds_802_11_radio_control cmd;
|
|
|
|
|
|
|
|
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
|
|
|
|
cmd.action = cpu_to_le16(CMD_ACT_SET);
|
|
|
|
|
|
|
|
switch (priv->preamble) {
|
|
|
|
case CMD_TYPE_SHORT_PREAMBLE:
|
|
|
|
cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CMD_TYPE_LONG_PREAMBLE:
|
|
|
|
cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CMD_TYPE_AUTO_PREAMBLE:
|
|
|
|
default:
|
|
|
|
cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (priv->radioon)
|
|
|
|
cmd.control |= cpu_to_le16(TURN_ON_RF);
|
|
|
|
else
|
|
|
|
cmd.control &= cpu_to_le16(~TURN_ON_RF);
|
|
|
|
|
|
|
|
ret = lbtf_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
void lbtf_set_mac_control(struct lbtf_private *priv)
|
|
|
|
{
|
|
|
|
struct cmd_ds_mac_control cmd;
|
|
|
|
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
|
|
|
|
cmd.action = cpu_to_le16(priv->mac_control);
|
|
|
|
cmd.reserved = 0;
|
|
|
|
|
|
|
|
lbtf_cmd_async(priv, CMD_MAC_CONTROL,
|
|
|
|
&cmd.hdr, sizeof(cmd));
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* lbtf_allocate_cmd_buffer - Allocates cmd buffer, links it to free cmd queue
|
|
|
|
*
|
|
|
|
* @priv A pointer to struct lbtf_private structure
|
|
|
|
*
|
|
|
|
* Returns: 0 on success.
|
|
|
|
*/
|
|
|
|
int lbtf_allocate_cmd_buffer(struct lbtf_private *priv)
|
|
|
|
{
|
|
|
|
u32 bufsize;
|
|
|
|
u32 i;
|
|
|
|
struct cmd_ctrl_node *cmdarray;
|
|
|
|
|
|
|
|
/* Allocate and initialize the command array */
|
|
|
|
bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
|
|
|
|
cmdarray = kzalloc(bufsize, GFP_KERNEL);
|
|
|
|
if (!cmdarray)
|
|
|
|
return -1;
|
|
|
|
priv->cmd_array = cmdarray;
|
|
|
|
|
|
|
|
/* Allocate and initialize each command buffer in the command array */
|
|
|
|
for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
|
|
|
|
cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
|
|
|
|
if (!cmdarray[i].cmdbuf)
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
|
|
|
|
init_waitqueue_head(&cmdarray[i].cmdwait_q);
|
|
|
|
lbtf_cleanup_and_insert_cmd(priv, &cmdarray[i]);
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* lbtf_free_cmd_buffer - Frees the cmd buffer.
|
|
|
|
*
|
|
|
|
* @priv A pointer to struct lbtf_private structure
|
|
|
|
*
|
|
|
|
* Returns: 0
|
|
|
|
*/
|
|
|
|
int lbtf_free_cmd_buffer(struct lbtf_private *priv)
|
|
|
|
{
|
|
|
|
struct cmd_ctrl_node *cmdarray;
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
/* need to check if cmd array is allocated or not */
|
|
|
|
if (priv->cmd_array == NULL)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
cmdarray = priv->cmd_array;
|
|
|
|
|
|
|
|
/* Release shared memory buffers */
|
|
|
|
for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
|
|
|
|
kfree(cmdarray[i].cmdbuf);
|
|
|
|
cmdarray[i].cmdbuf = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Release cmd_ctrl_node */
|
|
|
|
kfree(priv->cmd_array);
|
|
|
|
priv->cmd_array = NULL;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* lbtf_get_cmd_ctrl_node - Gets free cmd node from free cmd queue.
|
|
|
|
*
|
|
|
|
* @priv A pointer to struct lbtf_private structure
|
|
|
|
*
|
|
|
|
* Returns: pointer to a struct cmd_ctrl_node or NULL if none available.
|
|
|
|
*/
|
|
|
|
static struct cmd_ctrl_node *lbtf_get_cmd_ctrl_node(struct lbtf_private *priv)
|
|
|
|
{
|
|
|
|
struct cmd_ctrl_node *tempnode;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
if (!priv)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&priv->driver_lock, flags);
|
|
|
|
|
|
|
|
if (!list_empty(&priv->cmdfreeq)) {
|
|
|
|
tempnode = list_first_entry(&priv->cmdfreeq,
|
|
|
|
struct cmd_ctrl_node, list);
|
|
|
|
list_del(&tempnode->list);
|
|
|
|
} else
|
|
|
|
tempnode = NULL;
|
|
|
|
|
|
|
|
spin_unlock_irqrestore(&priv->driver_lock, flags);
|
|
|
|
|
|
|
|
return tempnode;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* lbtf_execute_next_command: execute next command in cmd pending queue.
|
|
|
|
*
|
|
|
|
* @priv A pointer to struct lbtf_private structure
|
|
|
|
*
|
|
|
|
* Returns: 0 on success.
|
|
|
|
*/
|
|
|
|
int lbtf_execute_next_command(struct lbtf_private *priv)
|
|
|
|
{
|
|
|
|
struct cmd_ctrl_node *cmdnode = NULL;
|
|
|
|
struct cmd_header *cmd;
|
|
|
|
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;
|
|
|
|
}
|