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Commit 9f2ad4fb authored by Juuso Oikarinen's avatar Juuso Oikarinen Committed by John W. Linville
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wl12xx: Moved wl1251 TX path implementation into chip specific files



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

Signed-off-by: default avatarJuuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: default avatarKalle Valo <kalle.valo@nokia.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 9f483dc3
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+2 −2
Original line number Original line Diff line number Diff line
wl12xx-objs		= main.o spi.o event.o tx.o rx.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  \
			  ps.o cmd.o acx.o boot.o init.o wl1251.o  \
			  debugfs.o
			  debugfs.o
obj-$(CONFIG_WL12XX)	+= wl12xx.o
obj-$(CONFIG_WL12XX)	+= wl12xx.o
+8 −5
Original line number Original line Diff line number Diff line
@@ -37,7 +37,7 @@
#include "wl1251.h"
#include "wl1251.h"
#include "spi.h"
#include "spi.h"
#include "event.h"
#include "event.h"
#include "tx.h"
#include "wl1251_tx.h"
#include "rx.h"
#include "rx.h"
#include "ps.h"
#include "ps.h"
#include "init.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);
	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);
	schedule_work(&wl->tx_work);


	/*
	/*
@@ -400,8 +405,7 @@ static void wl12xx_op_stop(struct ieee80211_hw *hw)
	mutex_lock(&wl->mutex);
	mutex_lock(&wl->mutex);


	/* let's notify MAC80211 about the remaining pending TX frames */
	/* let's notify MAC80211 about the remaining pending TX frames */
	wl12xx_tx_flush(wl);
	wl->chip.op_tx_flush(wl);

	wl12xx_power_off(wl);
	wl12xx_power_off(wl);


	memset(wl->bssid, 0, ETH_ALEN);
	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 */
	/* The tx descriptor buffer and the TKIP space */
	wl->hw->extra_tx_headroom = sizeof(struct tx_double_buffer_desc)
	wl->hw->extra_tx_headroom = sizeof(struct tx_double_buffer_desc)
		+ WL12XX_TKIP_IV_SPACE;
		+ WL1251_TKIP_IV_SPACE;


	/* unit us */
	/* unit us */
	/* FIXME: find a proper value */
	/* 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);
	skb_queue_head_init(&wl->tx_queue);


	INIT_WORK(&wl->tx_work, wl12xx_tx_work);
	INIT_WORK(&wl->filter_work, wl12xx_filter_work);
	INIT_WORK(&wl->filter_work, wl12xx_filter_work);
	wl->channel = WL12XX_DEFAULT_CHANNEL;
	wl->channel = WL12XX_DEFAULT_CHANNEL;
	wl->scanning = false;
	wl->scanning = false;
+5 −2
Original line number Original line Diff line number Diff line
@@ -30,7 +30,7 @@
#include "boot.h"
#include "boot.h"
#include "event.h"
#include "event.h"
#include "acx.h"
#include "acx.h"
#include "tx.h"
#include "wl1251_tx.h"
#include "rx.h"
#include "rx.h"
#include "ps.h"
#include "ps.h"
#include "init.h"
#include "init.h"
@@ -471,7 +471,7 @@ static void wl1251_irq_work(struct work_struct *work)


	if (intr & WL1251_ACX_INTR_TX_RESULT) {
	if (intr & WL1251_ACX_INTR_TX_RESULT) {
		wl12xx_debug(DEBUG_IRQ, "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)) {
	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_hw_init = wl1251_hw_init;
	wl->chip.op_plt_init = wl1251_plt_init;
	wl->chip.op_plt_init = wl1251_plt_init;
	wl->chip.op_fw_version = wl1251_fw_version;
	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.p_table = wl1251_part_table;
	wl->chip.acx_reg_table = wl1251_acx_reg_table;
	wl->chip.acx_reg_table = wl1251_acx_reg_table;


	INIT_WORK(&wl->irq_work, wl1251_irq_work);
	INIT_WORK(&wl->irq_work, wl1251_irq_work);
	INIT_WORK(&wl->tx_work, wl1251_tx_work);

}
}
+33 −33
Original line number Original line Diff line number Diff line
@@ -28,10 +28,10 @@
#include "wl12xx.h"
#include "wl12xx.h"
#include "reg.h"
#include "reg.h"
#include "spi.h"
#include "spi.h"
#include "tx.h"
#include "wl1251_tx.h"
#include "ps.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;
	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;
		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;
	u32 status, addr, data_out_count;
	bool busy;
	bool busy;
@@ -60,7 +60,7 @@ static int wl12xx_tx_path_status(struct wl12xx *wl)
	addr = wl->data_path->tx_control_addr;
	addr = wl->data_path->tx_control_addr;
	status = wl12xx_mem_read32(wl, addr);
	status = wl12xx_mem_read32(wl, addr);
	data_out_count = status & TX_STATUS_DATA_OUT_COUNT_MASK;
	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)
	if (busy)
		return -EBUSY;
		return -EBUSY;
@@ -68,7 +68,7 @@ static int wl12xx_tx_path_status(struct wl12xx *wl)
	return 0;
	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;
	int i;


@@ -81,7 +81,7 @@ static int wl12xx_tx_id(struct wl12xx *wl, struct sk_buff *skb)
	return -EBUSY;
	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)
			      struct ieee80211_tx_info *control, u16 fc)
{
{
	*(u16 *)&tx_hdr->control = 0;
	*(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 + \
#define MAX_MPDU_HEADER_AND_SECURITY  (MAX_MPDU_SECURITY_LENGTH + \
				       WLAN_QOS_HDR_LEN)
				       WLAN_QOS_HDR_LEN)
#define HW_BLOCK_SIZE                 252
#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 payload_len, frag_threshold, mem_blocks;
	u16 num_mpdus, mem_blocks_per_frag;
	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;
	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 ieee80211_tx_info *control)
{
{
	struct tx_double_buffer_desc *tx_hdr;
	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)
	if (!skb)
		return -EINVAL;
		return -EINVAL;


	id = wl12xx_tx_id(wl, skb);
	id = wl1251_tx_id(wl, skb);
	if (id < 0)
	if (id < 0)
		return id;
		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? */
	/* FIXME: how to get the correct queue id? */
	tx_hdr->xmit_queue = 0;
	tx_hdr->xmit_queue = 0;


	wl12xx_tx_control(tx_hdr, control, fc);
	wl1251_tx_control(tx_hdr, control, fc);
	wl12xx_tx_frag_block_num(tx_hdr);
	wl1251_tx_frag_block_num(tx_hdr);


	return 0;
	return 0;
}
}


/* We copy the packet to the target */
/* 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 ieee80211_tx_info *control)
{
{
	struct tx_double_buffer_desc *tx_hdr;
	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;
		u8 *pos;


		fc = *(u16 *)(skb->data + sizeof(*tx_hdr));
		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);
		hdrlen = ieee80211_hdrlen(fc);


		pos = skb_push(skb, WL12XX_TKIP_IV_SPACE);
		pos = skb_push(skb, WL1251_TKIP_IV_SPACE);
		memmove(pos, pos + WL12XX_TKIP_IV_SPACE,
		memmove(pos, pos + WL1251_TKIP_IV_SPACE,
			sizeof(*tx_hdr) + hdrlen);
			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 */
	/* 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)
	if (wl->data_in_count & 0x1)
		addr = wl->data_path->tx_packet_ring_addr +
		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;
	return 0;
}
}


static void wl12xx_tx_trigger(struct wl12xx *wl)
static void wl1251_tx_trigger(struct wl12xx *wl)
{
{
	u32 data, addr;
	u32 data, addr;


@@ -263,7 +263,7 @@ static void wl12xx_tx_trigger(struct wl12xx *wl)
}
}


/* caller must hold wl->mutex */
/* 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;
	struct ieee80211_tx_info *info;
	int ret = 0;
	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)
	if (ret < 0)
		return ret;
		return ret;


	ret = wl12xx_tx_fill_hdr(wl, skb, info);
	ret = wl1251_tx_fill_hdr(wl, skb, info);
	if (ret < 0)
	if (ret < 0)
		return ret;
		return ret;


	ret = wl12xx_tx_send_packet(wl, skb, info);
	ret = wl1251_tx_send_packet(wl, skb, info);
	if (ret < 0)
	if (ret < 0)
		return ret;
		return ret;


	wl12xx_tx_trigger(wl);
	wl1251_tx_trigger(wl);


	return ret;
	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 wl12xx *wl = container_of(work, struct wl12xx, tx_work);
	struct sk_buff *skb;
	struct sk_buff *skb;
@@ -315,7 +315,7 @@ void wl12xx_tx_work(struct work_struct *work)
			woken_up = true;
			woken_up = true;
		}
		}


		ret = wl12xx_tx_frame(wl, skb);
		ret = wl1251_tx_frame(wl, skb);
		if (ret == -EBUSY) {
		if (ret == -EBUSY) {
			/* firmware buffer is full, stop queues */
			/* firmware buffer is full, stop queues */
			wl12xx_debug(DEBUG_TX, "tx_work: fw buffer full, "
			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);
	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 */
	/* 8 bit status field, one character per bit plus null */
	static char buf[9];
	static char buf[9];
@@ -365,7 +365,7 @@ static const char *wl12xx_tx_parse_status(u8 status)
	return buf;
	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 tx_result *result)
{
{
	struct ieee80211_tx_info *info;
	struct ieee80211_tx_info *info;
@@ -396,14 +396,14 @@ static void wl12xx_tx_packet_cb(struct wl12xx *wl,
	if (info->control.hw_key &&
	if (info->control.hw_key &&
	    info->control.hw_key->alg == ALG_TKIP) {
	    info->control.hw_key->alg == ALG_TKIP) {
		hdrlen = ieee80211_get_hdrlen_from_skb(skb);
		hdrlen = ieee80211_get_hdrlen_from_skb(skb);
		memmove(frame + WL12XX_TKIP_IV_SPACE, frame, hdrlen);
		memmove(frame + WL1251_TKIP_IV_SPACE, frame, hdrlen);
		skb_pull(skb, WL12XX_TKIP_IV_SPACE);
		skb_pull(skb, WL1251_TKIP_IV_SPACE);
	}
	}


	wl12xx_debug(DEBUG_TX, "tx status id %u skb 0x%p failures %u rate 0x%x"
	wl12xx_debug(DEBUG_TX, "tx status id %u skb 0x%p failures %u rate 0x%x"
		     " status 0x%x (%s)",
		     " status 0x%x (%s)",
		     result->id, skb, result->ack_failures, result->rate,
		     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);
	ieee80211_tx_status(wl->hw, skb);
@@ -420,7 +420,7 @@ static void wl12xx_tx_packet_cb(struct wl12xx *wl,
		   queue empty */
		   queue empty */


		if (skb) {
		if (skb) {
			ret = wl12xx_tx_frame(wl, skb);
			ret = wl1251_tx_frame(wl, skb);
			if (ret == -EBUSY) {
			if (ret == -EBUSY) {
				/* firmware buffer is still full */
				/* firmware buffer is still full */
				wl12xx_debug(DEBUG_TX, "cb: fw buffer "
				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 */
/* 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;
	int i, result_index, num_complete = 0;
	struct tx_result result[FW_TX_CMPLT_BLOCK_SIZE], *result_ptr;
	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 &&
		if (result_ptr->done_1 == 1 &&
		    result_ptr->done_2 == 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_1 = 0;
			result_ptr->done_2 = 0;
			result_ptr->done_2 = 0;
@@ -523,7 +523,7 @@ void wl12xx_tx_complete(struct wl12xx *wl)
}
}


/* caller must hold wl->mutex */
/* caller must hold wl->mutex */
void wl12xx_tx_flush(struct wl12xx *wl)
void wl1251_tx_flush(struct wl12xx *wl)
{
{
	int i;
	int i;
	struct sk_buff *skb;
	struct sk_buff *skb;
+10 −9
Original line number Original line Diff line number Diff line
@@ -22,8 +22,8 @@
 *
 *
 */
 */


#ifndef __WL12XX_TX_H__
#ifndef __WL1251_TX_H__
#define __WL12XX_TX_H__
#define __WL1251_TX_H__


#include <linux/bitops.h>
#include <linux/bitops.h>


@@ -73,10 +73,11 @@


#define TX_COMPLETE_REQUIRED_BIT	0x80
#define TX_COMPLETE_REQUIRED_BIT	0x80
#define TX_STATUS_DATA_OUT_COUNT_MASK   0xf
#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) & \
#define WL1251_TX_ALIGN_TO 4
			     ~(WL12XX_TX_ALIGN_TO - 1))
#define WL1251_TX_ALIGN(len) (((len) + WL1251_TX_ALIGN_TO - 1) & \
#define WL12XX_TKIP_IV_SPACE 4
			     ~(WL1251_TX_ALIGN_TO - 1))
#define WL1251_TKIP_IV_SPACE 4


struct tx_control {
struct tx_control {
	/* Rate Policy (class) index */
	/* Rate Policy (class) index */
@@ -208,8 +209,8 @@ struct tx_result {
	u8 done_2;
	u8 done_2;
} __attribute__ ((packed));
} __attribute__ ((packed));


void wl12xx_tx_work(struct work_struct *work);
void wl1251_tx_work(struct work_struct *work);
void wl12xx_tx_complete(struct wl12xx *wl);
void wl1251_tx_complete(struct wl12xx *wl);
void wl12xx_tx_flush(struct wl12xx *wl);
void wl1251_tx_flush(struct wl12xx *wl);


#endif
#endif
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