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wl12xx: Moved wl1251 TX path implementation into chip specific files

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Moved wl1251 TX path implementation into chip specific files to enable
parallel implementation for the wl1271 TX path.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Juuso Oikarinen 2009-06-12 14:15:54 +03:00 committed by John W. Linville
parent 9f483dc3d1
commit 9f2ad4fb52
6 changed files with 59 additions and 51 deletions
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4
drivers/net/wireless/wl12xx/Makefile
View file

@ -1,4 +1,4 @@
wl12xx-objs = main.o spi.o event.o tx.o rx.o \
ps.o cmd.o acx.o boot.o init.o wl1251.o \
wl12xx-objs = main.o spi.o event.o wl1251_tx.o rx.o \
ps.o cmd.o acx.o boot.o init.o wl1251.o \
debugfs.o
obj-$(CONFIG_WL12XX) += wl12xx.o

13
drivers/net/wireless/wl12xx/main.c
View file

@ -37,7 +37,7 @@
#include "wl1251.h"
#include "spi.h"
#include "event.h"
#include "tx.h"
#include "wl1251_tx.h"
#include "rx.h"
#include "ps.h"
#include "init.h"
@ -303,6 +303,11 @@ static int wl12xx_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
skb_queue_tail(&wl->tx_queue, skb);
/*
* The chip specific setup must run before the first TX packet -
* before that, the tx_work will not be initialized!
*/
schedule_work(&wl->tx_work);
/*
@ -400,8 +405,7 @@ static void wl12xx_op_stop(struct ieee80211_hw *hw)
mutex_lock(&wl->mutex);
/* let's notify MAC80211 about the remaining pending TX frames */
wl12xx_tx_flush(wl);
wl->chip.op_tx_flush(wl);
wl12xx_power_off(wl);
memset(wl->bssid, 0, ETH_ALEN);
@ -1176,7 +1180,7 @@ static int wl12xx_init_ieee80211(struct wl12xx *wl)
{
/* The tx descriptor buffer and the TKIP space */
wl->hw->extra_tx_headroom = sizeof(struct tx_double_buffer_desc)
+ WL12XX_TKIP_IV_SPACE;
+ WL1251_TKIP_IV_SPACE;
/* unit us */
/* FIXME: find a proper value */
@ -1226,7 +1230,6 @@ static int __devinit wl12xx_probe(struct spi_device *spi)
skb_queue_head_init(&wl->tx_queue);
INIT_WORK(&wl->tx_work, wl12xx_tx_work);
INIT_WORK(&wl->filter_work, wl12xx_filter_work);
wl->channel = WL12XX_DEFAULT_CHANNEL;
wl->scanning = false;

7
drivers/net/wireless/wl12xx/wl1251.c
View file

@ -30,7 +30,7 @@
#include "boot.h"
#include "event.h"
#include "acx.h"
#include "tx.h"
#include "wl1251_tx.h"
#include "rx.h"
#include "ps.h"
#include "init.h"
@ -471,7 +471,7 @@ static void wl1251_irq_work(struct work_struct *work)
if (intr & WL1251_ACX_INTR_TX_RESULT) {
wl12xx_debug(DEBUG_IRQ, "WL1251_ACX_INTR_TX_RESULT");
wl12xx_tx_complete(wl);
wl1251_tx_complete(wl);
}
if (intr & (WL1251_ACX_INTR_EVENT_A | WL1251_ACX_INTR_EVENT_B)) {
@ -712,9 +712,12 @@ void wl1251_setup(struct wl12xx *wl)
wl->chip.op_hw_init = wl1251_hw_init;
wl->chip.op_plt_init = wl1251_plt_init;
wl->chip.op_fw_version = wl1251_fw_version;
wl->chip.op_tx_flush = wl1251_tx_flush;
wl->chip.p_table = wl1251_part_table;
wl->chip.acx_reg_table = wl1251_acx_reg_table;
INIT_WORK(&wl->irq_work, wl1251_irq_work);
INIT_WORK(&wl->tx_work, wl1251_tx_work);
}

66
drivers/net/wireless/wl12xx/tx.c → drivers/net/wireless/wl12xx/wl1251_tx.c
View file

@ -28,10 +28,10 @@
#include "wl12xx.h"
#include "reg.h"
#include "spi.h"
#include "tx.h"
#include "wl1251_tx.h"
#include "ps.h"
static bool wl12xx_tx_double_buffer_busy(struct wl12xx *wl, u32 data_out_count)
static bool wl1251_tx_double_buffer_busy(struct wl12xx *wl, u32 data_out_count)
{
int used, data_in_count;
@ -52,7 +52,7 @@ static bool wl12xx_tx_double_buffer_busy(struct wl12xx *wl, u32 data_out_count)
return false;
}
static int wl12xx_tx_path_status(struct wl12xx *wl)
static int wl1251_tx_path_status(struct wl12xx *wl)
{
u32 status, addr, data_out_count;
bool busy;
@ -60,7 +60,7 @@ static int wl12xx_tx_path_status(struct wl12xx *wl)
addr = wl->data_path->tx_control_addr;
status = wl12xx_mem_read32(wl, addr);
data_out_count = status & TX_STATUS_DATA_OUT_COUNT_MASK;
busy = wl12xx_tx_double_buffer_busy(wl, data_out_count);
busy = wl1251_tx_double_buffer_busy(wl, data_out_count);
if (busy)
return -EBUSY;
@ -68,7 +68,7 @@ static int wl12xx_tx_path_status(struct wl12xx *wl)
return 0;
}
static int wl12xx_tx_id(struct wl12xx *wl, struct sk_buff *skb)
static int wl1251_tx_id(struct wl12xx *wl, struct sk_buff *skb)
{
int i;
@ -81,7 +81,7 @@ static int wl12xx_tx_id(struct wl12xx *wl, struct sk_buff *skb)
return -EBUSY;
}
static void wl12xx_tx_control(struct tx_double_buffer_desc *tx_hdr,
static void wl1251_tx_control(struct tx_double_buffer_desc *tx_hdr,
struct ieee80211_tx_info *control, u16 fc)
{
*(u16 *)&tx_hdr->control = 0;
@ -109,7 +109,7 @@ static void wl12xx_tx_control(struct tx_double_buffer_desc *tx_hdr,
#define MAX_MPDU_HEADER_AND_SECURITY (MAX_MPDU_SECURITY_LENGTH + \
WLAN_QOS_HDR_LEN)
#define HW_BLOCK_SIZE 252
static void wl12xx_tx_frag_block_num(struct tx_double_buffer_desc *tx_hdr)
static void wl1251_tx_frag_block_num(struct tx_double_buffer_desc *tx_hdr)
{
u16 payload_len, frag_threshold, mem_blocks;
u16 num_mpdus, mem_blocks_per_frag;
@ -142,7 +142,7 @@ static void wl12xx_tx_frag_block_num(struct tx_double_buffer_desc *tx_hdr)
tx_hdr->num_mem_blocks = mem_blocks;
}
static int wl12xx_tx_fill_hdr(struct wl12xx *wl, struct sk_buff *skb,
static int wl1251_tx_fill_hdr(struct wl12xx *wl, struct sk_buff *skb,
struct ieee80211_tx_info *control)
{
struct tx_double_buffer_desc *tx_hdr;
@ -153,7 +153,7 @@ static int wl12xx_tx_fill_hdr(struct wl12xx *wl, struct sk_buff *skb,
if (!skb)
return -EINVAL;
id = wl12xx_tx_id(wl, skb);
id = wl1251_tx_id(wl, skb);
if (id < 0)
return id;
@ -170,14 +170,14 @@ static int wl12xx_tx_fill_hdr(struct wl12xx *wl, struct sk_buff *skb,
/* FIXME: how to get the correct queue id? */
tx_hdr->xmit_queue = 0;
wl12xx_tx_control(tx_hdr, control, fc);
wl12xx_tx_frag_block_num(tx_hdr);
wl1251_tx_control(tx_hdr, control, fc);
wl1251_tx_frag_block_num(tx_hdr);
return 0;
}
/* We copy the packet to the target */
static int wl12xx_tx_send_packet(struct wl12xx *wl, struct sk_buff *skb,
static int wl1251_tx_send_packet(struct wl12xx *wl, struct sk_buff *skb,
struct ieee80211_tx_info *control)
{
struct tx_double_buffer_desc *tx_hdr;
@ -196,12 +196,12 @@ static int wl12xx_tx_send_packet(struct wl12xx *wl, struct sk_buff *skb,
u8 *pos;
fc = *(u16 *)(skb->data + sizeof(*tx_hdr));
tx_hdr->length += WL12XX_TKIP_IV_SPACE;
tx_hdr->length += WL1251_TKIP_IV_SPACE;
hdrlen = ieee80211_hdrlen(fc);
pos = skb_push(skb, WL12XX_TKIP_IV_SPACE);
memmove(pos, pos + WL12XX_TKIP_IV_SPACE,
pos = skb_push(skb, WL1251_TKIP_IV_SPACE);
memmove(pos, pos + WL1251_TKIP_IV_SPACE,
sizeof(*tx_hdr) + hdrlen);
}
@ -227,7 +227,7 @@ static int wl12xx_tx_send_packet(struct wl12xx *wl, struct sk_buff *skb,
}
/* Our skb->data at this point includes the HW header */
len = WL12XX_TX_ALIGN(skb->len);
len = WL1251_TX_ALIGN(skb->len);
if (wl->data_in_count & 0x1)
addr = wl->data_path->tx_packet_ring_addr +
@ -243,7 +243,7 @@ static int wl12xx_tx_send_packet(struct wl12xx *wl, struct sk_buff *skb,
return 0;
}
static void wl12xx_tx_trigger(struct wl12xx *wl)
static void wl1251_tx_trigger(struct wl12xx *wl)
{
u32 data, addr;
@ -263,7 +263,7 @@ static void wl12xx_tx_trigger(struct wl12xx *wl)
}
/* caller must hold wl->mutex */
static int wl12xx_tx_frame(struct wl12xx *wl, struct sk_buff *skb)
static int wl1251_tx_frame(struct wl12xx *wl, struct sk_buff *skb)
{
struct ieee80211_tx_info *info;
int ret = 0;
@ -280,24 +280,24 @@ static int wl12xx_tx_frame(struct wl12xx *wl, struct sk_buff *skb)
}
}
ret = wl12xx_tx_path_status(wl);
ret = wl1251_tx_path_status(wl);
if (ret < 0)
return ret;
ret = wl12xx_tx_fill_hdr(wl, skb, info);
ret = wl1251_tx_fill_hdr(wl, skb, info);
if (ret < 0)
return ret;
ret = wl12xx_tx_send_packet(wl, skb, info);
ret = wl1251_tx_send_packet(wl, skb, info);
if (ret < 0)
return ret;
wl12xx_tx_trigger(wl);
wl1251_tx_trigger(wl);
return ret;
}
void wl12xx_tx_work(struct work_struct *work)
void wl1251_tx_work(struct work_struct *work)
{
struct wl12xx *wl = container_of(work, struct wl12xx, tx_work);
struct sk_buff *skb;
@ -315,7 +315,7 @@ void wl12xx_tx_work(struct work_struct *work)
woken_up = true;
}
ret = wl12xx_tx_frame(wl, skb);
ret = wl1251_tx_frame(wl, skb);
if (ret == -EBUSY) {
/* firmware buffer is full, stop queues */
wl12xx_debug(DEBUG_TX, "tx_work: fw buffer full, "
@ -337,7 +337,7 @@ void wl12xx_tx_work(struct work_struct *work)
mutex_unlock(&wl->mutex);
}
static const char *wl12xx_tx_parse_status(u8 status)
static const char *wl1251_tx_parse_status(u8 status)
{
/* 8 bit status field, one character per bit plus null */
static char buf[9];
@ -365,7 +365,7 @@ static const char *wl12xx_tx_parse_status(u8 status)
return buf;
}
static void wl12xx_tx_packet_cb(struct wl12xx *wl,
static void wl1251_tx_packet_cb(struct wl12xx *wl,
struct tx_result *result)
{
struct ieee80211_tx_info *info;
@ -396,14 +396,14 @@ static void wl12xx_tx_packet_cb(struct wl12xx *wl,
if (info->control.hw_key &&
info->control.hw_key->alg == ALG_TKIP) {
hdrlen = ieee80211_get_hdrlen_from_skb(skb);
memmove(frame + WL12XX_TKIP_IV_SPACE, frame, hdrlen);
skb_pull(skb, WL12XX_TKIP_IV_SPACE);
memmove(frame + WL1251_TKIP_IV_SPACE, frame, hdrlen);
skb_pull(skb, WL1251_TKIP_IV_SPACE);
}
wl12xx_debug(DEBUG_TX, "tx status id %u skb 0x%p failures %u rate 0x%x"
" status 0x%x (%s)",
result->id, skb, result->ack_failures, result->rate,
result->status, wl12xx_tx_parse_status(result->status));
result->status, wl1251_tx_parse_status(result->status));
ieee80211_tx_status(wl->hw, skb);
@ -420,7 +420,7 @@ static void wl12xx_tx_packet_cb(struct wl12xx *wl,
queue empty */
if (skb) {
ret = wl12xx_tx_frame(wl, skb);
ret = wl1251_tx_frame(wl, skb);
if (ret == -EBUSY) {
/* firmware buffer is still full */
wl12xx_debug(DEBUG_TX, "cb: fw buffer "
@ -440,7 +440,7 @@ static void wl12xx_tx_packet_cb(struct wl12xx *wl,
}
/* Called upon reception of a TX complete interrupt */
void wl12xx_tx_complete(struct wl12xx *wl)
void wl1251_tx_complete(struct wl12xx *wl)
{
int i, result_index, num_complete = 0;
struct tx_result result[FW_TX_CMPLT_BLOCK_SIZE], *result_ptr;
@ -459,7 +459,7 @@ void wl12xx_tx_complete(struct wl12xx *wl)
if (result_ptr->done_1 == 1 &&
result_ptr->done_2 == 1) {
wl12xx_tx_packet_cb(wl, result_ptr);
wl1251_tx_packet_cb(wl, result_ptr);
result_ptr->done_1 = 0;
result_ptr->done_2 = 0;
@ -523,7 +523,7 @@ void wl12xx_tx_complete(struct wl12xx *wl)
}
/* caller must hold wl->mutex */
void wl12xx_tx_flush(struct wl12xx *wl)
void wl1251_tx_flush(struct wl12xx *wl)
{
int i;
struct sk_buff *skb;

19
drivers/net/wireless/wl12xx/tx.h → drivers/net/wireless/wl12xx/wl1251_tx.h
View file

@ -22,8 +22,8 @@
*
*/
#ifndef __WL12XX_TX_H__
#define __WL12XX_TX_H__
#ifndef __WL1251_TX_H__
#define __WL1251_TX_H__
#include <linux/bitops.h>
@ -73,10 +73,11 @@
#define TX_COMPLETE_REQUIRED_BIT 0x80
#define TX_STATUS_DATA_OUT_COUNT_MASK 0xf
#define WL12XX_TX_ALIGN_TO 4
#define WL12XX_TX_ALIGN(len) (((len) + WL12XX_TX_ALIGN_TO - 1) & \
~(WL12XX_TX_ALIGN_TO - 1))
#define WL12XX_TKIP_IV_SPACE 4
#define WL1251_TX_ALIGN_TO 4
#define WL1251_TX_ALIGN(len) (((len) + WL1251_TX_ALIGN_TO - 1) & \
~(WL1251_TX_ALIGN_TO - 1))
#define WL1251_TKIP_IV_SPACE 4
struct tx_control {
/* Rate Policy (class) index */
@ -208,8 +209,8 @@ struct tx_result {
u8 done_2;
} __attribute__ ((packed));
void wl12xx_tx_work(struct work_struct *work);
void wl12xx_tx_complete(struct wl12xx *wl);
void wl12xx_tx_flush(struct wl12xx *wl);
void wl1251_tx_work(struct work_struct *work);
void wl1251_tx_complete(struct wl12xx *wl);
void wl1251_tx_flush(struct wl12xx *wl);
#endif

1
drivers/net/wireless/wl12xx/wl12xx.h
View file

@ -163,6 +163,7 @@ struct wl12xx_chip {
void (*op_target_enable_interrupts)(struct wl12xx *wl);
int (*op_hw_init)(struct wl12xx *wl);
int (*op_plt_init)(struct wl12xx *wl);
void (*op_tx_flush)(struct wl12xx *wl);
void (*op_fw_version)(struct wl12xx *wl);
struct wl12xx_partition_set *p_table;