[mirror_ubuntu-artful-kernel.git] / drivers / staging / rtl8712 / rtl8712_cmd.c

/******************************************************************************
 * rtl8712_cmd.c
 *
 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
 * Linux device driver for RTL8192SU
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 *
 * Modifications for inclusion into the Linux staging tree are
 * Copyright(c) 2010 Larry Finger. All rights reserved.
 *
 * Contact information:
 * WLAN FAE <wlanfae@realtek.com>.
 * Larry Finger <Larry.Finger@lwfinger.net>
 *
 ******************************************************************************/

#define _RTL8712_CMD_C_

#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kref.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/usb.h>
#include <linux/usb/ch9.h>
#include <linux/circ_buf.h>
#include <linux/uaccess.h>
#include <asm/byteorder.h>
#include <linux/atomic.h>
#include <linux/semaphore.h>
#include <linux/rtnetlink.h>

#include "osdep_service.h"
#include "drv_types.h"
#include "recv_osdep.h"
#include "mlme_osdep.h"
#include "rtl871x_ioctl_set.h"

static void check_hw_pbc(struct _adapter *padapter)
{
	u8	tmp1byte;

	r8712_write8(padapter, MAC_PINMUX_CTRL, (GPIOMUX_EN | GPIOSEL_GPIO));
	tmp1byte = r8712_read8(padapter, GPIO_IO_SEL);
	tmp1byte &= ~(HAL_8192S_HW_GPIO_WPS_BIT);
	r8712_write8(padapter, GPIO_IO_SEL, tmp1byte);
	tmp1byte = r8712_read8(padapter, GPIO_CTRL);
	if (tmp1byte == 0xff)
		return;
	if (tmp1byte&HAL_8192S_HW_GPIO_WPS_BIT) {
		/* Here we only set bPbcPressed to true
		 * After trigger PBC, the variable will be set to false */
		DBG_8712("CheckPbcGPIO - PBC is pressed !!!!\n");
		/* 0 is the default value and it means the application monitors
		 * the HW PBC doesn't provide its pid to driver. */
		if (padapter->pid == 0)
			return;
		kill_pid(find_vpid(padapter->pid), SIGUSR1, 1);
	}
}

/* query rx phy status from fw.
 * Adhoc mode: beacon.
 * Infrastructure mode: beacon , data. */
static void query_fw_rx_phy_status(struct _adapter *padapter)
{
	u32 val32 = 0;
	int pollingcnts = 50;

	if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == true) {
		r8712_write32(padapter, IOCMD_CTRL_REG, 0xf4000001);
		msleep(100);
		/* Wait FW complete IO Cmd */
		while ((r8712_read32(padapter, IOCMD_CTRL_REG)) &&
		       (pollingcnts > 0)) {
			pollingcnts--;
			msleep(20);
		}
		if (pollingcnts != 0)
			val32 = r8712_read32(padapter, IOCMD_DATA_REG);
		else /* time out */
			val32 = 0;
		val32 = val32 >> 4;
		padapter->recvpriv.fw_rssi =
			 (u8)r8712_signal_scale_mapping(val32);
	}
}

/* check mlme, hw, phy, or dynamic algorithm status. */
static void StatusWatchdogCallback(struct _adapter *padapter)
{
	check_hw_pbc(padapter);
	query_fw_rx_phy_status(padapter);
}

static void r871x_internal_cmd_hdl(struct _adapter *padapter, u8 *pbuf)
{
	struct drvint_cmd_parm *pdrvcmd;

	if (!pbuf)
		return;
	pdrvcmd = (struct drvint_cmd_parm *)pbuf;
	switch (pdrvcmd->i_cid) {
	case WDG_WK_CID:
		StatusWatchdogCallback(padapter);
		break;
	default:
		break;
	}
	kfree(pdrvcmd->pbuf);
}

static u8 read_macreg_hdl(struct _adapter *padapter, u8 *pbuf)
{
	void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj	*pcmd);
	struct cmd_obj *pcmd  = (struct cmd_obj *)pbuf;

	/*  invoke cmd->callback function */
	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
	if (pcmd_callback == NULL)
		r8712_free_cmd_obj(pcmd);
	else
		pcmd_callback(padapter, pcmd);
	return H2C_SUCCESS;
}

static u8 write_macreg_hdl(struct _adapter *padapter, u8 *pbuf)
{
	void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj	*pcmd);
	struct cmd_obj *pcmd  = (struct cmd_obj *)pbuf;

	/*  invoke cmd->callback function */
	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
	if (pcmd_callback == NULL)
		r8712_free_cmd_obj(pcmd);
	else
		pcmd_callback(padapter, pcmd);
	return H2C_SUCCESS;
}

static u8 read_bbreg_hdl(struct _adapter *padapter, u8 *pbuf)
{
	u32 val;
	void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj	*pcmd);
	struct readBB_parm *prdbbparm;
	struct cmd_obj *pcmd  = (struct cmd_obj *)pbuf;

	prdbbparm = (struct readBB_parm *)pcmd->parmbuf;
	if (pcmd->rsp && pcmd->rspsz > 0)
		memcpy(pcmd->rsp, (u8 *)&val, pcmd->rspsz);
	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
	if (pcmd_callback == NULL)
		r8712_free_cmd_obj(pcmd);
	else
		pcmd_callback(padapter, pcmd);
	return H2C_SUCCESS;
}

static u8 write_bbreg_hdl(struct _adapter *padapter, u8 *pbuf)
{
	void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd);
	struct writeBB_parm *pwritebbparm;
	struct cmd_obj *pcmd  = (struct cmd_obj *)pbuf;

	pwritebbparm = (struct writeBB_parm *)pcmd->parmbuf;
	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
	if (pcmd_callback == NULL)
		r8712_free_cmd_obj(pcmd);
	else
		pcmd_callback(padapter, pcmd);
	return H2C_SUCCESS;
}

static u8 read_rfreg_hdl(struct _adapter *padapter, u8 *pbuf)
{
	u32 val;
	void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd);
	struct readRF_parm *prdrfparm;
	struct cmd_obj *pcmd  = (struct cmd_obj *)pbuf;

	prdrfparm = (struct readRF_parm *)pcmd->parmbuf;
	if (pcmd->rsp && pcmd->rspsz > 0)
		memcpy(pcmd->rsp, (u8 *)&val, pcmd->rspsz);
	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
	if (pcmd_callback == NULL)
		r8712_free_cmd_obj(pcmd);
	else
		pcmd_callback(padapter, pcmd);
	return H2C_SUCCESS;
}

static u8 write_rfreg_hdl(struct _adapter *padapter, u8 *pbuf)
{
	void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd);
	struct writeRF_parm *pwriterfparm;
	struct cmd_obj *pcmd  = (struct cmd_obj *)pbuf;

	pwriterfparm = (struct writeRF_parm *)pcmd->parmbuf;
	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
	if (pcmd_callback == NULL)
		r8712_free_cmd_obj(pcmd);
	else
		pcmd_callback(padapter, pcmd);
	return H2C_SUCCESS;
}

static u8 sys_suspend_hdl(struct _adapter *padapter, u8 *pbuf)
{
	struct cmd_obj *pcmd  = (struct cmd_obj *)pbuf;
	struct usb_suspend_parm *psetusbsuspend;

	psetusbsuspend = (struct usb_suspend_parm *)pcmd->parmbuf;
	r8712_free_cmd_obj(pcmd);
	return H2C_SUCCESS;
}

static struct cmd_obj *cmd_hdl_filter(struct _adapter *padapter,
				      struct cmd_obj *pcmd)
{
	struct cmd_obj *pcmd_r;

	if (pcmd == NULL)
		return pcmd;
	pcmd_r = NULL;

	switch (pcmd->cmdcode) {
	case GEN_CMD_CODE(_Read_MACREG):
		read_macreg_hdl(padapter, (u8 *)pcmd);
		pcmd_r = pcmd;
		break;
	case GEN_CMD_CODE(_Write_MACREG):
		write_macreg_hdl(padapter, (u8 *)pcmd);
		pcmd_r = pcmd;
		break;
	case GEN_CMD_CODE(_Read_BBREG):
		read_bbreg_hdl(padapter, (u8 *)pcmd);
		break;
	case GEN_CMD_CODE(_Write_BBREG):
		write_bbreg_hdl(padapter, (u8 *)pcmd);
		break;
	case GEN_CMD_CODE(_Read_RFREG):
		read_rfreg_hdl(padapter, (u8 *)pcmd);
		break;
	case GEN_CMD_CODE(_Write_RFREG):
		write_rfreg_hdl(padapter, (u8 *)pcmd);
		break;
	case GEN_CMD_CODE(_SetUsbSuspend):
		sys_suspend_hdl(padapter, (u8 *)pcmd);
		break;
	case GEN_CMD_CODE(_JoinBss):
		r8712_joinbss_reset(padapter);
		/* Before set JoinBss_CMD to FW, driver must ensure FW is in
		 * PS_MODE_ACTIVE. Directly write rpwm to radio on and assign
		 * new pwr_mode to Driver, instead of use workitem to change
		 * state. */
		if (padapter->pwrctrlpriv.pwr_mode > PS_MODE_ACTIVE) {
			padapter->pwrctrlpriv.pwr_mode = PS_MODE_ACTIVE;
			_enter_pwrlock(&(padapter->pwrctrlpriv.lock));
			r8712_set_rpwm(padapter, PS_STATE_S4);
			up(&(padapter->pwrctrlpriv.lock));
		}
		pcmd_r = pcmd;
		break;
	case _DRV_INT_CMD_:
		r871x_internal_cmd_hdl(padapter, pcmd->parmbuf);
		r8712_free_cmd_obj(pcmd);
		pcmd_r = NULL;
		break;
	default:
		pcmd_r = pcmd;
		break;
	}
	return pcmd_r; /* if returning pcmd_r == NULL, pcmd must be free. */
}

static u8 check_cmd_fifo(struct _adapter *padapter, uint sz)
{
	u8 res = _SUCCESS;
	return res;
}

u8 r8712_fw_cmd(struct _adapter *pAdapter, u32 cmd)
{
	int pollingcnts = 50;

	r8712_write32(pAdapter, IOCMD_CTRL_REG, cmd);
	msleep(100);
	while ((0 != r8712_read32(pAdapter, IOCMD_CTRL_REG)) &&
	       (pollingcnts > 0)) {
		pollingcnts--;
		msleep(20);
	}
	if (pollingcnts == 0)
		return false;
	return true;
}

void r8712_fw_cmd_data(struct _adapter *pAdapter, u32 *value, u8 flag)
{
	if (flag == 0)	/* set */
		r8712_write32(pAdapter, IOCMD_DATA_REG, *value);
	else		/* query */
		*value = r8712_read32(pAdapter, IOCMD_DATA_REG);
}

int r8712_cmd_thread(void *context)
{
	struct cmd_obj *pcmd;
	unsigned int cmdsz, wr_sz, *pcmdbuf, *prspbuf;
	struct tx_desc *pdesc;
	void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd);
	struct _adapter *padapter = (struct _adapter *)context;
	struct	cmd_priv	*pcmdpriv = &(padapter->cmdpriv);

	thread_enter(padapter);
	while (1) {
		if ((_down_sema(&(pcmdpriv->cmd_queue_sema))) == _FAIL)
			break;
		if ((padapter->bDriverStopped == true) ||
		    (padapter->bSurpriseRemoved == true))
			break;
		if (r8712_register_cmd_alive(padapter) != _SUCCESS)
			continue;
_next:
		pcmd = r8712_dequeue_cmd(&(pcmdpriv->cmd_queue));
		if (!(pcmd)) {
			r8712_unregister_cmd_alive(padapter);
			continue;
		}
		pcmdbuf = (unsigned int *)pcmdpriv->cmd_buf;
		prspbuf = (unsigned int *)pcmdpriv->rsp_buf;
		pdesc = (struct tx_desc *)pcmdbuf;
		memset(pdesc, 0, TXDESC_SIZE);
		pcmd = cmd_hdl_filter(padapter, pcmd);
		if (pcmd) { /* if pcmd != NULL, cmd will be handled by f/w */
			struct dvobj_priv *pdvobj = (struct dvobj_priv *)
						    &padapter->dvobjpriv;
			u8 blnPending = 0;
			pcmdpriv->cmd_issued_cnt++;
			cmdsz = _RND8((pcmd->cmdsz)); /* _RND8	*/
			wr_sz = TXDESC_SIZE + 8 + cmdsz;
			pdesc->txdw0 |= cpu_to_le32((wr_sz-TXDESC_SIZE) &
						     0x0000ffff);
			if (pdvobj->ishighspeed) {
				if ((wr_sz % 512) == 0)
					blnPending = 1;
			} else {
				if ((wr_sz % 64) == 0)
					blnPending = 1;
			}
			if (blnPending) /* 32 bytes for TX Desc - 8 offset */
				pdesc->txdw0 |= cpu_to_le32(((TXDESC_SIZE +
						OFFSET_SZ + 8) << OFFSET_SHT) &
						0x00ff0000);
			else {
				pdesc->txdw0 |= cpu_to_le32(((TXDESC_SIZE +
							      OFFSET_SZ) <<
							      OFFSET_SHT) &
							      0x00ff0000);
			}
			pdesc->txdw0 |= cpu_to_le32(OWN | FSG | LSG);
			pdesc->txdw1 |= cpu_to_le32((0x13 << QSEL_SHT) &
						    0x00001f00);
			pcmdbuf += (TXDESC_SIZE >> 2);
			*pcmdbuf = cpu_to_le32((cmdsz & 0x0000ffff) |
					       (pcmd->cmdcode << 16) |
					       (pcmdpriv->cmd_seq << 24));
			pcmdbuf += 2; /* 8 bytes alignment */
			memcpy((u8 *)pcmdbuf, pcmd->parmbuf, pcmd->cmdsz);
			while (check_cmd_fifo(padapter, wr_sz) == _FAIL) {
				if ((padapter->bDriverStopped == true) ||
				    (padapter->bSurpriseRemoved == true))
					break;
				msleep(100);
				continue;
			}
			if (blnPending)
				wr_sz += 8;   /* Append 8 bytes */
			r8712_write_mem(padapter, RTL8712_DMA_H2CCMD, wr_sz,
				       (u8 *)pdesc);
			pcmdpriv->cmd_seq++;
			if (pcmd->cmdcode == GEN_CMD_CODE(_CreateBss)) {
				pcmd->res = H2C_SUCCESS;
				pcmd_callback = cmd_callback[pcmd->
						cmdcode].callback;
				if (pcmd_callback)
					pcmd_callback(padapter, pcmd);
				continue;
			}
			if (pcmd->cmdcode == GEN_CMD_CODE(_SetPwrMode)) {
				if (padapter->pwrctrlpriv.bSleep) {
					_enter_pwrlock(&(padapter->
						       pwrctrlpriv.lock));
					r8712_set_rpwm(padapter, PS_STATE_S2);
					up(&padapter->pwrctrlpriv.lock);
				}
			}
			r8712_free_cmd_obj(pcmd);
			if (_queue_empty(&(pcmdpriv->cmd_queue))) {
				r8712_unregister_cmd_alive(padapter);
				continue;
			} else
				goto _next;
		} else
			goto _next;
		flush_signals_thread();
	}
	/* free all cmd_obj resources */
	do {
		pcmd = r8712_dequeue_cmd(&(pcmdpriv->cmd_queue));
		if (pcmd == NULL)
			break;
		r8712_free_cmd_obj(pcmd);
	} while (1);
	up(&pcmdpriv->terminate_cmdthread_sema);
	thread_exit();
}

void r8712_event_handle(struct _adapter *padapter, uint *peventbuf)
{
	u8 evt_code, evt_seq;
	u16 evt_sz;
	void (*event_callback)(struct _adapter *dev, u8 *pbuf);
	struct	evt_priv *pevt_priv = &(padapter->evtpriv);

	if (peventbuf == NULL)
		goto _abort_event_;
	evt_sz = (u16)(le32_to_cpu(*peventbuf) & 0xffff);
	evt_seq = (u8)((le32_to_cpu(*peventbuf) >> 24) & 0x7f);
	evt_code = (u8)((le32_to_cpu(*peventbuf) >> 16) & 0xff);
	/* checking event sequence... */
	if ((evt_seq & 0x7f) != pevt_priv->event_seq) {
		pevt_priv->event_seq = ((evt_seq + 1) & 0x7f);
		goto _abort_event_;
	}
	/* checking if event code is valid */
	if (evt_code >= MAX_C2HEVT) {
		pevt_priv->event_seq = ((evt_seq+1) & 0x7f);
		goto _abort_event_;
	} else if ((evt_code == GEN_EVT_CODE(_Survey)) &&
		   (evt_sz > sizeof(struct wlan_bssid_ex))) {
		pevt_priv->event_seq = ((evt_seq+1)&0x7f);
		goto _abort_event_;
	}
	/* checking if event size match the event parm size */
	if ((wlanevents[evt_code].parmsize) &&
	    (wlanevents[evt_code].parmsize != evt_sz)) {
		pevt_priv->event_seq = ((evt_seq+1)&0x7f);
		goto _abort_event_;
	} else if ((evt_sz == 0) && (evt_code != GEN_EVT_CODE(_WPS_PBC))) {
		pevt_priv->event_seq = ((evt_seq+1)&0x7f);
		goto _abort_event_;
	}
	pevt_priv->event_seq++;	/* update evt_seq */
	if (pevt_priv->event_seq > 127)
		pevt_priv->event_seq = 0;
	peventbuf = peventbuf + 2; /* move to event content, 8 bytes alignment */
	event_callback = wlanevents[evt_code].event_callback;
	if (event_callback)
		event_callback(padapter, (u8 *)peventbuf);
	pevt_priv->evt_done_cnt++;
_abort_event_:
	return;
}
Commit	Line	Data
2865d42c LF	1	/******************************************************************************
	2	* rtl8712_cmd.c
	3	*
	4	* Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
	5	* Linux device driver for RTL8192SU
	6	*
	7	* This program is free software; you can redistribute it and/or modify it
	8	* under the terms of version 2 of the GNU General Public License as
	9	* published by the Free Software Foundation.
	10	*
	11	* This program is distributed in the hope that it will be useful, but WITHOUT
	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	14	* more details.
	15	*
	16	* You should have received a copy of the GNU General Public License along with
	17	* this program; if not, write to the Free Software Foundation, Inc.,
	18	* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
	19	*
	20	* Modifications for inclusion into the Linux staging tree are
	21	* Copyright(c) 2010 Larry Finger. All rights reserved.
	22	*
	23	* Contact information:
	24	* WLAN FAE <wlanfae@realtek.com>.
	25	* Larry Finger <Larry.Finger@lwfinger.net>
	26	*
	27	******************************************************************************/
	28
	29	#define _RTL8712_CMD_C_
	30
359140aa AB	31	#include <linux/compiler.h>
	32	#include <linux/kernel.h>
	33	#include <linux/errno.h>
	34	#include <linux/init.h>
	35	#include <linux/slab.h>
	36	#include <linux/module.h>
	37	#include <linux/kref.h>
	38	#include <linux/netdevice.h>
	39	#include <linux/skbuff.h>
	40	#include <linux/usb.h>
	41	#include <linux/usb/ch9.h>
	42	#include <linux/circ_buf.h>
	43	#include <linux/uaccess.h>
	44	#include <asm/byteorder.h>
	45	#include <linux/atomic.h>
	46	#include <linux/semaphore.h>
	47	#include <linux/rtnetlink.h>
	48
2865d42c LF	49	#include "osdep_service.h"
	50	#include "drv_types.h"
	51	#include "recv_osdep.h"
	52	#include "mlme_osdep.h"
2865d42c LF	53	#include "rtl871x_ioctl_set.h"
	54
	55	static void check_hw_pbc(struct _adapter *padapter)
	56	{
	57	u8 tmp1byte;
	58
	59	r8712_write8(padapter, MAC_PINMUX_CTRL, (GPIOMUX_EN \| GPIOSEL_GPIO));
	60	tmp1byte = r8712_read8(padapter, GPIO_IO_SEL);
	61	tmp1byte &= ~(HAL_8192S_HW_GPIO_WPS_BIT);
	62	r8712_write8(padapter, GPIO_IO_SEL, tmp1byte);
	63	tmp1byte = r8712_read8(padapter, GPIO_CTRL);
	64	if (tmp1byte == 0xff)
77e73e8c	65	return;
2865d42c LF	66	if (tmp1byte&HAL_8192S_HW_GPIO_WPS_BIT) {
	67	/* Here we only set bPbcPressed to true
	68	* After trigger PBC, the variable will be set to false */
	69	DBG_8712("CheckPbcGPIO - PBC is pressed !!!!\n");
	70	/* 0 is the default value and it means the application monitors
be10ac2b	71	* the HW PBC doesn't provide its pid to driver. */
2865d42c LF	72	if (padapter->pid == 0)
	73	return;
	74	kill_pid(find_vpid(padapter->pid), SIGUSR1, 1);
	75	}
	76	}
	77
	78	/* query rx phy status from fw.
	79	* Adhoc mode: beacon.
	80	* Infrastructure mode: beacon , data. */
	81	static void query_fw_rx_phy_status(struct _adapter *padapter)
	82	{
	83	u32 val32 = 0;
	84	int pollingcnts = 50;
	85
	86	if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == true) {
	87	r8712_write32(padapter, IOCMD_CTRL_REG, 0xf4000001);
	88	msleep(100);
	89	/* Wait FW complete IO Cmd */
	90	while ((r8712_read32(padapter, IOCMD_CTRL_REG)) &&
	91	(pollingcnts > 0)) {
	92	pollingcnts--;
	93	msleep(20);
	94	}
	95	if (pollingcnts != 0)
	96	val32 = r8712_read32(padapter, IOCMD_DATA_REG);
	97	else /* time out */
	98	val32 = 0;
	99	val32 = val32 >> 4;
	100	padapter->recvpriv.fw_rssi =
	101	(u8)r8712_signal_scale_mapping(val32);
	102	}
	103	}
	104
	105	/* check mlme, hw, phy, or dynamic algorithm status. */
	106	static void StatusWatchdogCallback(struct _adapter *padapter)
	107	{
	108	check_hw_pbc(padapter);
	109	query_fw_rx_phy_status(padapter);
	110	}
	111
	112	static void r871x_internal_cmd_hdl(struct _adapter padapter, u8 pbuf)
	113	{
	114	struct drvint_cmd_parm *pdrvcmd;
	115
	116	if (!pbuf)
	117	return;
	118	pdrvcmd = (struct drvint_cmd_parm *)pbuf;
	119	switch (pdrvcmd->i_cid) {
	120	case WDG_WK_CID:
	121	StatusWatchdogCallback(padapter);
	122	break;
	123	default:
	124	break;
	125	}
	126	kfree(pdrvcmd->pbuf);
	127	}
	128
	129	static u8 read_macreg_hdl(struct _adapter padapter, u8 pbuf)
	130	{
	131	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
	132	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
	133
	134	/* invoke cmd->callback function */
	135	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
136	if (pcmd_callback == NULL)
137	r8712_free_cmd_obj(pcmd);
138	else
139	pcmd_callback(padapter, pcmd);
140	return H2C_SUCCESS;
141	}
142
143	static u8 write_macreg_hdl(struct _adapter padapter, u8 pbuf)
144	{
145	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
146	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
147
148	/* invoke cmd->callback function */
149	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
150	if (pcmd_callback == NULL)
151	r8712_free_cmd_obj(pcmd);
152	else
153	pcmd_callback(padapter, pcmd);
154	return H2C_SUCCESS;
155	}
156
157	static u8 read_bbreg_hdl(struct _adapter padapter, u8 pbuf)
158	{
159	u32 val;
160	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
161	struct readBB_parm *prdbbparm;
162	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
163
164	prdbbparm = (struct readBB_parm *)pcmd->parmbuf;
165	if (pcmd->rsp && pcmd->rspsz > 0)
166	memcpy(pcmd->rsp, (u8 *)&val, pcmd->rspsz);
167	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
168	if (pcmd_callback == NULL)
169	r8712_free_cmd_obj(pcmd);
170	else
171	pcmd_callback(padapter, pcmd);
172	return H2C_SUCCESS;
173	}
174
175	static u8 write_bbreg_hdl(struct _adapter padapter, u8 pbuf)
176	{
177	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
178	struct writeBB_parm *pwritebbparm;
179	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
180
181	pwritebbparm = (struct writeBB_parm *)pcmd->parmbuf;
182	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
183	if (pcmd_callback == NULL)
184	r8712_free_cmd_obj(pcmd);
185	else
186	pcmd_callback(padapter, pcmd);
187	return H2C_SUCCESS;
188	}
189
190	static u8 read_rfreg_hdl(struct _adapter padapter, u8 pbuf)
191	{
192	u32 val;
193	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
194	struct readRF_parm *prdrfparm;
195	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
196
197	prdrfparm = (struct readRF_parm *)pcmd->parmbuf;
198	if (pcmd->rsp && pcmd->rspsz > 0)
199	memcpy(pcmd->rsp, (u8 *)&val, pcmd->rspsz);
200	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
201	if (pcmd_callback == NULL)
202	r8712_free_cmd_obj(pcmd);
203	else
204	pcmd_callback(padapter, pcmd);
205	return H2C_SUCCESS;
206	}
207
208	static u8 write_rfreg_hdl(struct _adapter padapter, u8 pbuf)
209	{
210	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
211	struct writeRF_parm *pwriterfparm;
212	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
213
214	pwriterfparm = (struct writeRF_parm *)pcmd->parmbuf;
215	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
216	if (pcmd_callback == NULL)
217	r8712_free_cmd_obj(pcmd);
218	else
219	pcmd_callback(padapter, pcmd);
220	return H2C_SUCCESS;
221	}
222
223	static u8 sys_suspend_hdl(struct _adapter padapter, u8 pbuf)
224	{
225	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
226	struct usb_suspend_parm *psetusbsuspend;
227
228	psetusbsuspend = (struct usb_suspend_parm *)pcmd->parmbuf;
229	r8712_free_cmd_obj(pcmd);
230	return H2C_SUCCESS;
231	}
232
233	static struct cmd_obj cmd_hdl_filter(struct _adapter padapter,
234	struct cmd_obj *pcmd)
235	{
236	struct cmd_obj *pcmd_r;
237
238	if (pcmd == NULL)
239	return pcmd;
240	pcmd_r = NULL;
241
242	switch (pcmd->cmdcode) {
243	case GEN_CMD_CODE(_Read_MACREG):
244	read_macreg_hdl(padapter, (u8 *)pcmd);
245	pcmd_r = pcmd;
246	break;
247	case GEN_CMD_CODE(_Write_MACREG):
248	write_macreg_hdl(padapter, (u8 *)pcmd);
249	pcmd_r = pcmd;
250	break;
251	case GEN_CMD_CODE(_Read_BBREG):
252	read_bbreg_hdl(padapter, (u8 *)pcmd);
253	break;
254	case GEN_CMD_CODE(_Write_BBREG):
255	write_bbreg_hdl(padapter, (u8 *)pcmd);
256	break;
257	case GEN_CMD_CODE(_Read_RFREG):
258	read_rfreg_hdl(padapter, (u8 *)pcmd);
259	break;
260	case GEN_CMD_CODE(_Write_RFREG):
261	write_rfreg_hdl(padapter, (u8 *)pcmd);
262	break;
263	case GEN_CMD_CODE(_SetUsbSuspend):
264	sys_suspend_hdl(padapter, (u8 *)pcmd);
265	break;
266	case GEN_CMD_CODE(_JoinBss):
267	r8712_joinbss_reset(padapter);
268	/* Before set JoinBss_CMD to FW, driver must ensure FW is in
269	* PS_MODE_ACTIVE. Directly write rpwm to radio on and assign
270	* new pwr_mode to Driver, instead of use workitem to change
271	* state. */
272	if (padapter->pwrctrlpriv.pwr_mode > PS_MODE_ACTIVE) {
273	padapter->pwrctrlpriv.pwr_mode = PS_MODE_ACTIVE;
274	_enter_pwrlock(&(padapter->pwrctrlpriv.lock));
275	r8712_set_rpwm(padapter, PS_STATE_S4);
276	up(&(padapter->pwrctrlpriv.lock));
277	}
278	pcmd_r = pcmd;
279	break;
280	case _DRV_INT_CMD_:
281	r871x_internal_cmd_hdl(padapter, pcmd->parmbuf);
282	r8712_free_cmd_obj(pcmd);
283	pcmd_r = NULL;
284	break;
285	default:
286	pcmd_r = pcmd;
287	break;
288	}
289	return pcmd_r; /* if returning pcmd_r == NULL, pcmd must be free. */
290	}
291
292	static u8 check_cmd_fifo(struct _adapter *padapter, uint sz)
293	{
294	u8 res = _SUCCESS;
295	return res;
296	}
297
298	u8 r8712_fw_cmd(struct _adapter *pAdapter, u32 cmd)
299	{
300	int pollingcnts = 50;
301
302	r8712_write32(pAdapter, IOCMD_CTRL_REG, cmd);
303	msleep(100);
304	while ((0 != r8712_read32(pAdapter, IOCMD_CTRL_REG)) &&
305	(pollingcnts > 0)) {
306	pollingcnts--;
307	msleep(20);
308	}
309	if (pollingcnts == 0)
310	return false;
311	return true;
312	}
313
314	void r8712_fw_cmd_data(struct _adapter pAdapter, u32 value, u8 flag)
315	{
316	if (flag == 0) /* set */
317	r8712_write32(pAdapter, IOCMD_DATA_REG, *value);
318	else /* query */
319	*value = r8712_read32(pAdapter, IOCMD_DATA_REG);
320	}
321
322	int r8712_cmd_thread(void *context)
323	{
324	struct cmd_obj *pcmd;
325	unsigned int cmdsz, wr_sz, pcmdbuf, prspbuf;
326	struct tx_desc *pdesc;
327	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
328	struct _adapter padapter = (struct _adapter )context;
329	struct cmd_priv *pcmdpriv = &(padapter->cmdpriv);
330
331	thread_enter(padapter);
332	while (1) {
333	if ((_down_sema(&(pcmdpriv->cmd_queue_sema))) == _FAIL)
334	break;
335	if ((padapter->bDriverStopped == true) \|\|
336	(padapter->bSurpriseRemoved == true))
337	break;
338	if (r8712_register_cmd_alive(padapter) != _SUCCESS)
339	continue;
340	_next:
341	pcmd = r8712_dequeue_cmd(&(pcmdpriv->cmd_queue));
342	if (!(pcmd)) {
343	r8712_unregister_cmd_alive(padapter);
344	continue;
345	}
346	pcmdbuf = (unsigned int *)pcmdpriv->cmd_buf;
347	prspbuf = (unsigned int *)pcmdpriv->rsp_buf;
348	pdesc = (struct tx_desc *)pcmdbuf;
349	memset(pdesc, 0, TXDESC_SIZE);
350	pcmd = cmd_hdl_filter(padapter, pcmd);
351	if (pcmd) { /* if pcmd != NULL, cmd will be handled by f/w */
352	struct dvobj_priv pdvobj = (struct dvobj_priv )
353	&padapter->dvobjpriv;
354	u8 blnPending = 0;
355	pcmdpriv->cmd_issued_cnt++;
356	cmdsz = _RND8((pcmd->cmdsz)); /* _RND8 */
357	wr_sz = TXDESC_SIZE + 8 + cmdsz;
358	pdesc->txdw0 \|= cpu_to_le32((wr_sz-TXDESC_SIZE) &
359	0x0000ffff);
360	if (pdvobj->ishighspeed) {
361	if ((wr_sz % 512) == 0)
362	blnPending = 1;
363	} else {
364	if ((wr_sz % 64) == 0)
365	blnPending = 1;
366	}
367	if (blnPending) /* 32 bytes for TX Desc - 8 offset */
368	pdesc->txdw0 \|= cpu_to_le32(((TXDESC_SIZE +
369	OFFSET_SZ + 8) << OFFSET_SHT) &
370	0x00ff0000);
371	else {
372	pdesc->txdw0 \|= cpu_to_le32(((TXDESC_SIZE +
373	OFFSET_SZ) <<
374	OFFSET_SHT) &
375	0x00ff0000);
376	}
377	pdesc->txdw0 \|= cpu_to_le32(OWN \| FSG \| LSG);
378	pdesc->txdw1 \|= cpu_to_le32((0x13 << QSEL_SHT) &
379	0x00001f00);
380	pcmdbuf += (TXDESC_SIZE >> 2);
381	*pcmdbuf = cpu_to_le32((cmdsz & 0x0000ffff) \|
382	(pcmd->cmdcode << 16) \|
383	(pcmdpriv->cmd_seq << 24));
77e73e8c	384	pcmdbuf += 2; /* 8 bytes alignment */
2865d42c LF	385	memcpy((u8 *)pcmdbuf, pcmd->parmbuf, pcmd->cmdsz);
	386	while (check_cmd_fifo(padapter, wr_sz) == _FAIL) {
	387	if ((padapter->bDriverStopped == true) \|\|
	388	(padapter->bSurpriseRemoved == true))
	389	break;
	390	msleep(100);
	391	continue;
	392	}
	393	if (blnPending)
	394	wr_sz += 8; /* Append 8 bytes */
	395	r8712_write_mem(padapter, RTL8712_DMA_H2CCMD, wr_sz,
	396	(u8 *)pdesc);
	397	pcmdpriv->cmd_seq++;
	398	if (pcmd->cmdcode == GEN_CMD_CODE(_CreateBss)) {
	399	pcmd->res = H2C_SUCCESS;
	400	pcmd_callback = cmd_callback[pcmd->
	401	cmdcode].callback;
	402	if (pcmd_callback)
	403	pcmd_callback(padapter, pcmd);
	404	continue;
	405	}
	406	if (pcmd->cmdcode == GEN_CMD_CODE(_SetPwrMode)) {
	407	if (padapter->pwrctrlpriv.bSleep) {
	408	_enter_pwrlock(&(padapter->
	409	pwrctrlpriv.lock));
	410	r8712_set_rpwm(padapter, PS_STATE_S2);
	411	up(&padapter->pwrctrlpriv.lock);
	412	}
	413	}
	414	r8712_free_cmd_obj(pcmd);
	415	if (_queue_empty(&(pcmdpriv->cmd_queue))) {
	416	r8712_unregister_cmd_alive(padapter);
	417	continue;
	418	} else
	419	goto _next;
	420	} else
	421	goto _next;
	422	flush_signals_thread();
	423	}
	424	/* free all cmd_obj resources */
	425	do {
	426	pcmd = r8712_dequeue_cmd(&(pcmdpriv->cmd_queue));
	427	if (pcmd == NULL)
	428	break;
	429	r8712_free_cmd_obj(pcmd);
	430	} while (1);
	431	up(&pcmdpriv->terminate_cmdthread_sema);
	432	thread_exit();
	433	}
	434
	435	void r8712_event_handle(struct _adapter padapter, uint peventbuf)
	436	{
	437	u8 evt_code, evt_seq;
	438	u16 evt_sz;
	439	void (event_callback)(struct _adapter dev, u8 *pbuf);
	440	struct evt_priv *pevt_priv = &(padapter->evtpriv);
	441
	442	if (peventbuf == NULL)
	443	goto _abort_event_;
	444	evt_sz = (u16)(le32_to_cpu(*peventbuf) & 0xffff);
	445	evt_seq = (u8)((le32_to_cpu(*peventbuf) >> 24) & 0x7f);
	446	evt_code = (u8)((le32_to_cpu(*peventbuf) >> 16) & 0xff);
	447	/* checking event sequence... */
	448	if ((evt_seq & 0x7f) != pevt_priv->event_seq) {
449	pevt_priv->event_seq = ((evt_seq + 1) & 0x7f);
450	goto _abort_event_;
451	}
452	/* checking if event code is valid */
453	if (evt_code >= MAX_C2HEVT) {
454	pevt_priv->event_seq = ((evt_seq+1) & 0x7f);
455	goto _abort_event_;
456	} else if ((evt_code == GEN_EVT_CODE(_Survey)) &&
457	(evt_sz > sizeof(struct wlan_bssid_ex))) {
458	pevt_priv->event_seq = ((evt_seq+1)&0x7f);
459	goto _abort_event_;
460	}
461	/* checking if event size match the event parm size */
462	if ((wlanevents[evt_code].parmsize) &&
463	(wlanevents[evt_code].parmsize != evt_sz)) {
464	pevt_priv->event_seq = ((evt_seq+1)&0x7f);
465	goto _abort_event_;
466	} else if ((evt_sz == 0) && (evt_code != GEN_EVT_CODE(_WPS_PBC))) {
467	pevt_priv->event_seq = ((evt_seq+1)&0x7f);
468	goto _abort_event_;
469	}
470	pevt_priv->event_seq++; /* update evt_seq */
471	if (pevt_priv->event_seq > 127)
472	pevt_priv->event_seq = 0;
be10ac2b	473	peventbuf = peventbuf + 2; /* move to event content, 8 bytes alignment */
a376932a DC	474	event_callback = wlanevents[evt_code].event_callback;
	475	if (event_callback)
	476	event_callback(padapter, (u8 *)peventbuf);
2865d42c LF	477	pevt_priv->evt_done_cnt++;
	478	_abort_event_:
	479	return;
	480	}