/**
|
* aicwf_bus.c
|
*
|
* bus function declarations
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*
|
* Copyright (C) AICSemi 2018-2020
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*/
|
|
#include <linux/kthread.h>
|
#include <linux/netdevice.h>
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#include <linux/printk.h>
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#include <linux/interrupt.h>
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#include <linux/sched.h>
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#include <linux/completion.h>
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#include <linux/semaphore.h>
|
#include <linux/debugfs.h>
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#include <linux/atomic.h>
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#include <linux/vmalloc.h>
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#include "lmac_msg.h"
|
#include "aicwf_txrxif.h"
|
#include "rwnx_platform.h"
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#include "rwnx_defs.h"
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#include "rwnx_msg_rx.h"
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#include "rwnx_rx.h"
|
#ifdef AICWF_SDIO_SUPPORT
|
#include "sdio_host.h"
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#endif
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#include "aic_bsp_export.h"
|
|
int aicwf_bus_init(uint bus_hdrlen, struct device *dev)
|
{
|
int ret = 0;
|
struct aicwf_bus *bus_if;
|
|
if (!dev) {
|
txrx_err("device not found\n");
|
return -1;
|
}
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bus_if = dev_get_drvdata(dev);
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bus_if->cmd_buf = kzalloc(CMD_BUF_MAX, GFP_KERNEL);
|
if (!bus_if->cmd_buf) {
|
ret = -ENOMEM;
|
txrx_err("proto_attach failed\n");
|
goto fail;
|
}
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memset(bus_if->cmd_buf, '\0', CMD_BUF_MAX);
|
|
init_completion(&bus_if->bustx_trgg);
|
init_completion(&bus_if->busrx_trgg);
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#ifdef AICWF_SDIO_SUPPORT
|
bus_if->bustx_thread = kthread_run(sdio_bustx_thread, (void *)bus_if, "aicwf_bustx_thread");
|
bus_if->busrx_thread = kthread_run(sdio_busrx_thread, (void *)bus_if->bus_priv.sdio->rx_priv, "aicwf_busrx_thread");
|
#endif
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#ifdef AICWF_USB_SUPPORT
|
bus_if->bustx_thread = kthread_run(usb_bustx_thread, (void *)bus_if, "aicwf_bustx_thread");
|
bus_if->busrx_thread = kthread_run(usb_busrx_thread, (void *)bus_if->bus_priv.usb->rx_priv, "aicwf_busrx_thread");
|
#endif
|
|
if (IS_ERR(bus_if->bustx_thread)) {
|
bus_if->bustx_thread = NULL;
|
txrx_err("aicwf_bustx_thread run fail\n");
|
goto fail;
|
}
|
|
if (IS_ERR(bus_if->busrx_thread)) {
|
bus_if->busrx_thread = NULL;
|
txrx_err("aicwf_bustx_thread run fail\n");
|
goto fail;
|
}
|
|
return ret;
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fail:
|
aicwf_bus_deinit(dev);
|
|
return ret;
|
}
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void aicwf_bus_deinit(struct device *dev)
|
{
|
struct aicwf_bus *bus_if;
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#ifdef AICWF_USB_SUPPORT
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struct aic_usb_dev *usb;
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#endif
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#ifdef AICWF_SDIO_SUPPORT
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struct aic_sdio_dev *sdiodev;
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#endif
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if (!dev) {
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txrx_err("device not found\n");
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return;
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}
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printk("%s", __func__);
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bus_if = dev_get_drvdata(dev);
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aicwf_bus_stop(bus_if);
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#ifdef AICWF_USB_SUPPORT
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usb = bus_if->bus_priv.usb;
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if (g_rwnx_plat->enabled)
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rwnx_platform_deinit(usb->rwnx_hw);
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#endif
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#ifdef AICWF_SDIO_SUPPORT
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sdiodev = bus_if->bus_priv.sdio;
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if (g_rwnx_plat && g_rwnx_plat->enabled) {
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rwnx_platform_deinit(sdiodev->rwnx_hw);
|
}
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#endif
|
|
if (bus_if->cmd_buf) {
|
kfree(bus_if->cmd_buf);
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bus_if->cmd_buf = NULL;
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}
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|
if (bus_if->bustx_thread) {
|
complete_all(&bus_if->bustx_trgg);
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kthread_stop(bus_if->bustx_thread);
|
bus_if->bustx_thread = NULL;
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}
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printk("exit %s\n", __func__);
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}
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void aicwf_frame_tx(void *dev, struct sk_buff *skb)
|
{
|
#ifdef AICWF_SDIO_SUPPORT
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struct aic_sdio_dev *sdiodev = (struct aic_sdio_dev *)dev;
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aicwf_bus_txdata(sdiodev->bus_if, skb);
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#else
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struct aic_usb_dev *usbdev = (struct aic_usb_dev *)dev;
|
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if (!usbdev->state) {
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txrx_err("down\n");
|
aicwf_usb_tx_flowctrl(usbdev->rwnx_hw, true);
|
dev_kfree_skb(skb);
|
return;
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}
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aicwf_bus_txdata(usbdev->bus_if, skb);
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#endif
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}
|
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struct aicwf_tx_priv *aicwf_tx_init(void *arg)
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{
|
struct aicwf_tx_priv *tx_priv;
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tx_priv = kzalloc(sizeof(struct aicwf_tx_priv), GFP_KERNEL);
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if (!tx_priv)
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return NULL;
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|
#ifdef AICWF_SDIO_SUPPORT
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tx_priv->sdiodev = (struct aic_sdio_dev *)arg;
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#else
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tx_priv->usbdev = (struct aic_usb_dev *)arg;
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#endif
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atomic_set(&tx_priv->aggr_count, 0);
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#ifdef AICBSP_RESV_MEM_SUPPORT
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tx_priv->aggr_buf = aicbsp_resv_mem_alloc_skb(MAX_AGGR_TXPKT_LEN, AIC_RESV_MEM_TXDATA);
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#else
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tx_priv->aggr_buf = dev_alloc_skb(MAX_AGGR_TXPKT_LEN);
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#endif
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if (!tx_priv->aggr_buf) {
|
txrx_err("Alloc bus->txdata_buf failed!\n");
|
kfree(tx_priv);
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return NULL;
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}
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tx_priv->head = tx_priv->aggr_buf->data;
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tx_priv->tail = tx_priv->aggr_buf->data;
|
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return tx_priv;
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}
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void aicwf_tx_deinit(struct aicwf_tx_priv *tx_priv)
|
{
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if (tx_priv && tx_priv->aggr_buf) {
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#ifdef AICBSP_RESV_MEM_SUPPORT
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aicbsp_resv_mem_kfree_skb(tx_priv->aggr_buf, AIC_RESV_MEM_TXDATA);
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#else
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dev_kfree_skb(tx_priv->aggr_buf);
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#endif
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kfree(tx_priv);
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}
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}
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#ifdef AICWF_SDIO_SUPPORT
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static bool aicwf_another_ptk(struct sk_buff *skb)
|
{
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u8 *data;
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u16 aggr_len = 0;
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if (skb->data == NULL || skb->len == 0) {
|
return false;
|
}
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data = skb->data;
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aggr_len = (*skb->data | (*(skb->data + 1) << 8));
|
if (aggr_len == 0) {
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return false;
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}
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return true;
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}
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#endif
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static void aicwf_count_rx_tp(struct aicwf_rx_priv *rx_priv, int len)
|
{
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#ifdef AICWF_SDIO_SUPPORT
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struct device *rwnx_dev = rx_priv->sdiodev->dev;
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#endif
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#ifdef AICWF_USB_SUPPORT
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struct device *rwnx_dev = rx_priv->usbdev->dev;
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#endif
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long long timeus = 0;
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char *envp[] = {
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"SYSTEM=WIFI",
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"EVENT=BOOSTREQ",
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"SUBEVENT=RX",
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"TIMEOUT_SEC=5",
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NULL};
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rx_priv->rx_data_len += len;
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|
rx_priv->rxtimeend = ktime_get();
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)
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timeus = div_u64(rx_priv->rxtimeend.tv64 - rx_priv->rxtimebegin.tv64, NSEC_PER_USEC);
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#else
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timeus = ktime_to_us(rx_priv->rxtimeend - rx_priv->rxtimebegin);
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#endif
|
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if (timeus >= USEC_PER_SEC) {
|
// calc & send uevent
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if (div_u64(rx_priv->rx_data_len, timeus) >= 6)
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kobject_uevent_env(&rwnx_dev->kobj, KOBJ_CHANGE, envp);
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rx_priv->rx_data_len = 0;
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rx_priv->rxtimebegin = rx_priv->rxtimeend;
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}
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}
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int aicwf_process_rxframes(struct aicwf_rx_priv *rx_priv)
|
{
|
#ifdef AICWF_SDIO_SUPPORT
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int ret = 0;
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unsigned long flags = 0;
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struct sk_buff *skb = NULL;
|
u16 pkt_len = 0;
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struct sk_buff *skb_inblock = NULL;
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u16 aggr_len = 0, adjust_len = 0;
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u8 *data = NULL;
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u8_l *msg = NULL;
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|
while (1) {
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spin_lock_irqsave(&rx_priv->rxqlock, flags);
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if (aicwf_is_framequeue_empty(&rx_priv->rxq)) {
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spin_unlock_irqrestore(&rx_priv->rxqlock, flags);
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break;
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}
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skb = aicwf_frame_dequeue(&rx_priv->rxq);
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spin_unlock_irqrestore(&rx_priv->rxqlock, flags);
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if (skb == NULL) {
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txrx_err("skb_error\r\n");
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break;
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}
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while (aicwf_another_ptk(skb)) {
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data = skb->data;
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pkt_len = (*skb->data | (*(skb->data + 1) << 8));
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if ((skb->data[2] & SDIO_TYPE_CFG) != SDIO_TYPE_CFG) { // type : data
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aggr_len = pkt_len + RX_HWHRD_LEN;
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if (aggr_len & (RX_ALIGNMENT - 1))
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adjust_len = roundup(aggr_len, RX_ALIGNMENT);
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else
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adjust_len = aggr_len;
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skb_inblock = __dev_alloc_skb(aggr_len + CCMP_OR_WEP_INFO, GFP_KERNEL);
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if (skb_inblock == NULL) {
|
txrx_err("no more space! skip\n");
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skb_pull(skb, adjust_len);
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continue;
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}
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skb_put(skb_inblock, aggr_len);
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memcpy(skb_inblock->data, data, aggr_len);
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aicwf_count_rx_tp(rx_priv, aggr_len);
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rwnx_rxdataind_aicwf(rx_priv->sdiodev->rwnx_hw, skb_inblock, (void *)rx_priv);
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skb_pull(skb, adjust_len);
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} else {
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// type : config
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aggr_len = pkt_len;
|
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if (aggr_len & (RX_ALIGNMENT - 1))
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adjust_len = roundup(aggr_len, RX_ALIGNMENT);
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else
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adjust_len = aggr_len;
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msg = kmalloc(aggr_len+4, GFP_KERNEL);
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if (msg == NULL) {
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txrx_err("no more space for msg!\n");
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aicwf_dev_skb_free(skb);
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return -EBADE;
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}
|
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memcpy(msg, data, aggr_len + 4);
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if ((*(msg + 2) & 0x7f) == SDIO_TYPE_CFG_CMD_RSP)
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rwnx_rx_handle_msg(rx_priv->sdiodev->rwnx_hw, (struct ipc_e2a_msg *)(msg + 4));
|
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if ((*(msg + 2) & 0x7f) == SDIO_TYPE_CFG_DATA_CFM)
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aicwf_sdio_host_tx_cfm_handler(&(rx_priv->sdiodev->rwnx_hw->sdio_env), (u32 *)(msg + 4));
|
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if ((*(msg + 2) & 0x7f) == SDIO_TYPE_CFG_PRINT)
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rwnx_rx_handle_print(rx_priv->sdiodev->rwnx_hw, msg + 4, aggr_len);
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|
skb_pull(skb, adjust_len+4);
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kfree(msg);
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}
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}
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dev_kfree_skb(skb);
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atomic_dec(&rx_priv->rx_cnt);
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}
|
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aicwf_sdio_pwr_stctl(rx_priv->sdiodev, SDIO_ACTIVE_ST);
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return ret;
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#else //AICWF_USB_SUPPORT
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int ret = 0;
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unsigned long flags = 0;
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struct sk_buff *skb = NULL; /* Packet for event or data frames */
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u16 pkt_len = 0;
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struct sk_buff *skb_inblock = NULL;
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u16 aggr_len = 0, adjust_len = 0;
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u8 *data = NULL;
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u8_l *msg = NULL;
|
|
while (1) {
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spin_lock_irqsave(&rx_priv->rxqlock, flags);
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if (aicwf_is_framequeue_empty(&rx_priv->rxq)) {
|
usb_info("no more rxdata\n");
|
spin_unlock_irqrestore(&rx_priv->rxqlock, flags);
|
break;
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}
|
skb = aicwf_frame_dequeue(&rx_priv->rxq);
|
spin_unlock_irqrestore(&rx_priv->rxqlock, flags);
|
if (skb == NULL) {
|
txrx_err("skb_error\r\n");
|
break;
|
}
|
data = skb->data;
|
pkt_len = (*skb->data | (*(skb->data + 1) << 8));
|
//printk("p:%d, s:%d , %x\n", pkt_len, skb->len, data[2]);
|
if (pkt_len > 1600) {
|
dev_kfree_skb(skb);
|
atomic_dec(&rx_priv->rx_cnt);
|
continue;
|
}
|
|
if ((skb->data[2] & USB_TYPE_CFG) != USB_TYPE_CFG) { // type : data
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aggr_len = pkt_len + RX_HWHRD_LEN;
|
if (aggr_len & (RX_ALIGNMENT - 1))
|
adjust_len = roundup(aggr_len, RX_ALIGNMENT);
|
else
|
adjust_len = aggr_len;
|
|
skb_inblock = __dev_alloc_skb(aggr_len + CCMP_OR_WEP_INFO, GFP_KERNEL);//8 is for ccmp mic or wep icv
|
if (skb_inblock == NULL) {
|
txrx_err("no more space! skip!\n");
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skb_pull(skb, adjust_len);
|
continue;
|
}
|
|
skb_put(skb_inblock, aggr_len);
|
memcpy(skb_inblock->data, data, aggr_len);
|
aicwf_count_rx_tp(rx_priv, aggr_len);
|
rwnx_rxdataind_aicwf(rx_priv->usbdev->rwnx_hw, skb_inblock, (void *)rx_priv);
|
///TODO: here need to add rx data process
|
|
skb_pull(skb, adjust_len);
|
} else { // type : config
|
aggr_len = pkt_len;
|
if (aggr_len & (RX_ALIGNMENT - 1))
|
adjust_len = roundup(aggr_len, RX_ALIGNMENT);
|
else
|
adjust_len = aggr_len;
|
|
msg = kmalloc(aggr_len+4, GFP_KERNEL);
|
if (msg == NULL) {
|
txrx_err("no more space for msg!\n");
|
aicwf_dev_skb_free(skb);
|
return -EBADE;
|
}
|
memcpy(msg, data, aggr_len + 4);
|
if ((*(msg + 2) & 0x7f) == USB_TYPE_CFG_CMD_RSP)
|
rwnx_rx_handle_msg(rx_priv->usbdev->rwnx_hw, (struct ipc_e2a_msg *)(msg + 4));
|
|
if ((*(msg + 2) & 0x7f) == USB_TYPE_CFG_DATA_CFM)
|
aicwf_usb_host_tx_cfm_handler(&(rx_priv->usbdev->rwnx_hw->usb_env), (u32 *)(msg + 4));
|
skb_pull(skb, adjust_len + 4);
|
kfree(msg);
|
}
|
|
dev_kfree_skb(skb);
|
atomic_dec(&rx_priv->rx_cnt);
|
}
|
|
return ret;
|
#endif //AICWF_SDIO_SUPPORT
|
}
|
|
static struct recv_msdu *aicwf_rxframe_queue_init(struct list_head *q, int qsize)
|
{
|
int i;
|
struct recv_msdu *req, *reqs;
|
|
reqs = vmalloc(qsize*sizeof(struct recv_msdu));
|
if (reqs == NULL)
|
return NULL;
|
|
req = reqs;
|
for (i = 0; i < qsize; i++) {
|
INIT_LIST_HEAD(&req->rxframe_list);
|
list_add(&req->rxframe_list, q);
|
req->len = 0;
|
req++;
|
}
|
|
return reqs;
|
}
|
|
struct aicwf_rx_priv *aicwf_rx_init(void *arg)
|
{
|
struct aicwf_rx_priv *rx_priv;
|
rx_priv = kzalloc(sizeof(struct aicwf_rx_priv), GFP_KERNEL);
|
if (!rx_priv)
|
return NULL;
|
|
#ifdef AICWF_SDIO_SUPPORT
|
rx_priv->sdiodev = (struct aic_sdio_dev *)arg;
|
#else
|
rx_priv->usbdev = (struct aic_usb_dev *)arg;
|
#endif
|
|
aicwf_frame_queue_init(&rx_priv->rxq, 1, MAX_RXQLEN);
|
spin_lock_init(&rx_priv->rxqlock);
|
atomic_set(&rx_priv->rx_cnt, 0);
|
|
#ifdef AICWF_RX_REORDER
|
INIT_LIST_HEAD(&rx_priv->rxframes_freequeue);
|
spin_lock_init(&rx_priv->freeq_lock);
|
rx_priv->recv_frames = aicwf_rxframe_queue_init(&rx_priv->rxframes_freequeue, MAX_REORD_RXFRAME);
|
if (!rx_priv->recv_frames) {
|
txrx_err("no enough buffer for free recv frame queue!\n");
|
kfree(rx_priv);
|
return NULL;
|
}
|
spin_lock_init(&rx_priv->stas_reord_lock);
|
INIT_LIST_HEAD(&rx_priv->stas_reord_list);
|
#endif
|
|
return rx_priv;
|
}
|
|
|
static void aicwf_recvframe_queue_deinit(struct list_head *q)
|
{
|
struct recv_msdu *req, *next;
|
|
list_for_each_entry_safe(req, next, q, rxframe_list) {
|
list_del_init(&req->rxframe_list);
|
}
|
}
|
|
void aicwf_rx_deinit(struct aicwf_rx_priv *rx_priv)
|
{
|
#ifdef AICWF_RX_REORDER
|
struct reord_ctrl_info *reord_info, *tmp;
|
|
txrx_dbg("%s\n", __func__);
|
spin_lock_bh(&rx_priv->stas_reord_lock);
|
list_for_each_entry_safe(reord_info, tmp,
|
&rx_priv->stas_reord_list, list) {
|
reord_deinit_sta(rx_priv, reord_info);
|
}
|
spin_unlock_bh(&rx_priv->stas_reord_lock);
|
#endif
|
|
#ifdef AICWF_SDIO_SUPPORT
|
txrx_dbg("sdio rx thread\n");
|
if (rx_priv->sdiodev->bus_if->busrx_thread) {
|
complete_all(&rx_priv->sdiodev->bus_if->busrx_trgg);
|
kthread_stop(rx_priv->sdiodev->bus_if->busrx_thread);
|
rx_priv->sdiodev->bus_if->busrx_thread = NULL;
|
}
|
#endif
|
#ifdef AICWF_USB_SUPPORT
|
if (rx_priv->usbdev->bus_if->busrx_thread) {
|
complete_all(&rx_priv->usbdev->bus_if->busrx_trgg);
|
kthread_stop(rx_priv->usbdev->bus_if->busrx_thread);
|
rx_priv->usbdev->bus_if->busrx_thread = NULL;
|
}
|
#endif
|
|
aicwf_frame_queue_flush(&rx_priv->rxq);
|
#ifdef AICWF_RX_REORDER
|
aicwf_recvframe_queue_deinit(&rx_priv->rxframes_freequeue);
|
if (rx_priv->recv_frames)
|
vfree(rx_priv->recv_frames);
|
#endif
|
|
kfree(rx_priv);
|
|
txrx_dbg("exit %s\n", __func__);
|
}
|
|
bool aicwf_rxframe_enqueue(struct device *dev, struct frame_queue *q, struct sk_buff *pkt)
|
{
|
return aicwf_frame_enq(dev, q, pkt, 0);
|
}
|
|
|
void aicwf_dev_skb_free(struct sk_buff *skb)
|
{
|
if (!skb)
|
return;
|
|
dev_kfree_skb_any(skb);
|
}
|
|
static struct sk_buff *aicwf_frame_queue_penq(struct frame_queue *pq, int prio, struct sk_buff *p)
|
{
|
struct sk_buff_head *q;
|
|
if (pq->queuelist[prio].qlen >= pq->qmax)
|
return NULL;
|
|
q = &pq->queuelist[prio];
|
__skb_queue_tail(q, p);
|
pq->qcnt++;
|
if (pq->hi_prio < prio)
|
pq->hi_prio = (u16)prio;
|
|
return p;
|
}
|
|
void aicwf_frame_queue_flush(struct frame_queue *pq)
|
{
|
int prio;
|
struct sk_buff_head *q;
|
struct sk_buff *p, *next;
|
|
for (prio = 0; prio < pq->num_prio; prio++) {
|
q = &pq->queuelist[prio];
|
skb_queue_walk_safe(q, p, next) {
|
skb_unlink(p, q);
|
aicwf_dev_skb_free(p);
|
pq->qcnt--;
|
}
|
}
|
}
|
|
void aicwf_frame_queue_init(struct frame_queue *pq, int num_prio, int max_len)
|
{
|
int prio;
|
|
memset(pq, 0, offsetof(struct frame_queue, queuelist) + (sizeof(struct sk_buff_head) * num_prio));
|
pq->num_prio = (u16)num_prio;
|
pq->qmax = (u16)max_len;
|
|
for (prio = 0; prio < num_prio; prio++) {
|
skb_queue_head_init(&pq->queuelist[prio]);
|
}
|
}
|
|
struct sk_buff *aicwf_frame_queue_peek_tail(struct frame_queue *pq, int *prio_out)
|
{
|
int prio;
|
|
if (pq->qcnt == 0)
|
return NULL;
|
|
for (prio = 0; prio < pq->hi_prio; prio++)
|
if (!skb_queue_empty(&pq->queuelist[prio]))
|
break;
|
|
if (prio_out)
|
*prio_out = prio;
|
|
return skb_peek_tail(&pq->queuelist[prio]);
|
}
|
|
bool aicwf_is_framequeue_empty(struct frame_queue *pq)
|
{
|
int prio, len = 0;
|
|
for (prio = 0; prio <= pq->hi_prio; prio++)
|
len += pq->queuelist[prio].qlen;
|
|
if (len > 0)
|
return false;
|
else
|
return true;
|
}
|
|
struct sk_buff *aicwf_frame_dequeue(struct frame_queue *pq)
|
{
|
struct sk_buff_head *q;
|
struct sk_buff *p;
|
int prio;
|
|
if (pq->qcnt == 0)
|
return NULL;
|
|
while ((prio = pq->hi_prio) > 0 && skb_queue_empty(&pq->queuelist[prio]))
|
pq->hi_prio--;
|
|
q = &pq->queuelist[prio];
|
p = __skb_dequeue(q);
|
if (p == NULL)
|
return NULL;
|
|
pq->qcnt--;
|
|
return p;
|
}
|
|
bool aicwf_frame_enq(struct device *dev, struct frame_queue *q, struct sk_buff *pkt, int prio)
|
{
|
if (q->queuelist[prio].qlen < q->qmax && q->qcnt < q->qmax) {
|
aicwf_frame_queue_penq(q, prio, pkt);
|
return true;
|
} else
|
return false;
|
}
|
