[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/slab.h>
#include <linux/sched/signal.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)) {
		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 >>= 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)
		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)
		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 cmd_obj *pcmd  = (struct cmd_obj *)pbuf;

	if (pcmd->rsp && pcmd->rspsz > 0)
		memcpy(pcmd->rsp, (u8 *)&val, pcmd->rspsz);
	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
	if (!pcmd_callback)
		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 cmd_obj *pcmd  = (struct cmd_obj *)pbuf;

	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
	if (!pcmd_callback)
		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 cmd_obj *pcmd  = (struct cmd_obj *)pbuf;

	if (pcmd->rsp && pcmd->rspsz > 0)
		memcpy(pcmd->rsp, (u8 *)&val, pcmd->rspsz);
	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
	if (!pcmd_callback)
		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 cmd_obj *pcmd  = (struct cmd_obj *)pbuf;

	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
	if (!pcmd_callback)
		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;

	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)
		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;
			mutex_lock(&padapter->pwrctrlpriv.mutex_lock);
			r8712_set_rpwm(padapter, PS_STATE_S4);
			mutex_unlock(&padapter->pwrctrlpriv.mutex_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)
{
	return _SUCCESS;
}

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

	r8712_write32(pAdapter, IOCMD_CTRL_REG, cmd);
	msleep(100);
	while ((r8712_read32(pAdapter, IOCMD_CTRL_REG != 0)) &&
	       (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;
	__le32 *pcmdbuf;
	struct tx_desc *pdesc;
	void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd);
	struct _adapter *padapter = context;
	struct	cmd_priv	*pcmdpriv = &(padapter->cmdpriv);

	allow_signal(SIGTERM);
	while (1) {
		if (wait_for_completion_interruptible(&pcmdpriv->cmd_queue_comp))
			break;
		if (padapter->bDriverStopped || padapter->bSurpriseRemoved)
			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 = (__le32 *)pcmdpriv->cmd_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 = &padapter->dvobjpriv;
			u8 blnPending = 0;

			pcmdpriv->cmd_issued_cnt++;
			cmdsz = round_up(pcmd->cmdsz, 8);
			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 ||
				    padapter->bSurpriseRemoved)
					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) {
					mutex_lock(&padapter->
						       pwrctrlpriv.mutex_lock);
					r8712_set_rpwm(padapter, PS_STATE_S2);
					mutex_unlock(&padapter->pwrctrlpriv.mutex_lock);
				}
			}
			r8712_free_cmd_obj(pcmd);
			if (list_empty(&pcmdpriv->cmd_queue.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)
			break;
		r8712_free_cmd_obj(pcmd);
	} while (1);
	complete(&pcmdpriv->terminate_cmdthread_comp);
	thread_exit();
}

void r8712_event_handle(struct _adapter *padapter, __le32 *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)
		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;
	/* move to event content, 8 bytes alignment */
	peventbuf = peventbuf + 2;
	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>
359140aa	34	#include <linux/slab.h>
3f07c014	35	#include <linux/sched/signal.h>
359140aa AB	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;
4ef2de5a	66	if (tmp1byte & HAL_8192S_HW_GPIO_WPS_BIT) {
2865d42c	67	/* Here we only set bPbcPressed to true
ed9c838a PV	68	* After trigger PBC, the variable will be set to false
ed9c838a PV	69	*/
2865d42c LF	70	DBG_8712("CheckPbcGPIO - PBC is pressed !!!!\n");
2865d42c LF	71	/* 0 is the default value and it means the application monitors
ed9c838a PV	72	* the HW PBC doesn't provide its pid to driver.
ed9c838a PV	73	*/
2865d42c LF	74	if (padapter->pid == 0)
	75	return;
	76	kill_pid(find_vpid(padapter->pid), SIGUSR1, 1);
	77	}
	78	}
	79
	80	/* query rx phy status from fw.
	81	* Adhoc mode: beacon.
ed9c838a PV	82	* Infrastructure mode: beacon , data.
ed9c838a PV	83	*/
2865d42c LF	84	static void query_fw_rx_phy_status(struct _adapter *padapter)
	85	{
	86	u32 val32 = 0;
	87	int pollingcnts = 50;
	88
1ca96884	89	if (check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
2865d42c LF	90	r8712_write32(padapter, IOCMD_CTRL_REG, 0xf4000001);
	91	msleep(100);
	92	/* Wait FW complete IO Cmd */
	93	while ((r8712_read32(padapter, IOCMD_CTRL_REG)) &&
	94	(pollingcnts > 0)) {
	95	pollingcnts--;
	96	msleep(20);
	97	}
	98	if (pollingcnts != 0)
	99	val32 = r8712_read32(padapter, IOCMD_DATA_REG);
	100	else /* time out */
	101	val32 = 0;
ae52e527	102	val32 >>= 4;
2865d42c LF	103	padapter->recvpriv.fw_rssi =
	104	(u8)r8712_signal_scale_mapping(val32);
	105	}
	106	}
	107
	108	/* check mlme, hw, phy, or dynamic algorithm status. */
	109	static void StatusWatchdogCallback(struct _adapter *padapter)
	110	{
	111	check_hw_pbc(padapter);
	112	query_fw_rx_phy_status(padapter);
	113	}
	114
	115	static void r871x_internal_cmd_hdl(struct _adapter padapter, u8 pbuf)
	116	{
	117	struct drvint_cmd_parm *pdrvcmd;
	118
	119	if (!pbuf)
	120	return;
	121	pdrvcmd = (struct drvint_cmd_parm *)pbuf;
	122	switch (pdrvcmd->i_cid) {
	123	case WDG_WK_CID:
	124	StatusWatchdogCallback(padapter);
	125	break;
	126	default:
	127	break;
	128	}
	129	kfree(pdrvcmd->pbuf);
	130	}
	131
	132	static u8 read_macreg_hdl(struct _adapter padapter, u8 pbuf)
	133	{
	134	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
	135	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
	136
	137	/* invoke cmd->callback function */
	138	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
7fcf92c0	139	if (!pcmd_callback)
2865d42c LF	140	r8712_free_cmd_obj(pcmd);
	141	else
	142	pcmd_callback(padapter, pcmd);
	143	return H2C_SUCCESS;
	144	}
	145
	146	static u8 write_macreg_hdl(struct _adapter padapter, u8 pbuf)
	147	{
	148	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
	149	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
	150
	151	/* invoke cmd->callback function */
	152	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
7fcf92c0	153	if (!pcmd_callback)
2865d42c LF	154	r8712_free_cmd_obj(pcmd);
	155	else
	156	pcmd_callback(padapter, pcmd);
	157	return H2C_SUCCESS;
	158	}
	159
	160	static u8 read_bbreg_hdl(struct _adapter padapter, u8 pbuf)
	161	{
	162	u32 val;
	163	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
2865d42c LF	164	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
2865d42c LF	165
2865d42c LF	166	if (pcmd->rsp && pcmd->rspsz > 0)
	167	memcpy(pcmd->rsp, (u8 *)&val, pcmd->rspsz);
	168	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
7fcf92c0	169	if (!pcmd_callback)
2865d42c LF	170	r8712_free_cmd_obj(pcmd);
	171	else
	172	pcmd_callback(padapter, pcmd);
	173	return H2C_SUCCESS;
	174	}
	175
	176	static u8 write_bbreg_hdl(struct _adapter padapter, u8 pbuf)
	177	{
	178	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
2865d42c LF	179	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
2865d42c LF	180
2865d42c	181	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
7fcf92c0	182	if (!pcmd_callback)
2865d42c LF	183	r8712_free_cmd_obj(pcmd);
	184	else
	185	pcmd_callback(padapter, pcmd);
	186	return H2C_SUCCESS;
	187	}
	188
	189	static u8 read_rfreg_hdl(struct _adapter padapter, u8 pbuf)
	190	{
	191	u32 val;
	192	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
2865d42c LF	193	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
2865d42c LF	194
2865d42c LF	195	if (pcmd->rsp && pcmd->rspsz > 0)
	196	memcpy(pcmd->rsp, (u8 *)&val, pcmd->rspsz);
	197	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
7fcf92c0	198	if (!pcmd_callback)
2865d42c LF	199	r8712_free_cmd_obj(pcmd);
	200	else
	201	pcmd_callback(padapter, pcmd);
	202	return H2C_SUCCESS;
	203	}
	204
	205	static u8 write_rfreg_hdl(struct _adapter padapter, u8 pbuf)
	206	{
	207	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
2865d42c LF	208	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
2865d42c LF	209
2865d42c	210	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
7fcf92c0	211	if (!pcmd_callback)
2865d42c LF	212	r8712_free_cmd_obj(pcmd);
	213	else
	214	pcmd_callback(padapter, pcmd);
	215	return H2C_SUCCESS;
	216	}
	217
	218	static u8 sys_suspend_hdl(struct _adapter padapter, u8 pbuf)
	219	{
	220	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
2865d42c	221
2865d42c LF	222	r8712_free_cmd_obj(pcmd);
	223	return H2C_SUCCESS;
	224	}
	225
	226	static struct cmd_obj cmd_hdl_filter(struct _adapter padapter,
	227	struct cmd_obj *pcmd)
	228	{
	229	struct cmd_obj *pcmd_r;
	230
7fcf92c0	231	if (!pcmd)
2865d42c LF	232	return pcmd;
	233	pcmd_r = NULL;
	234
	235	switch (pcmd->cmdcode) {
	236	case GEN_CMD_CODE(_Read_MACREG):
	237	read_macreg_hdl(padapter, (u8 *)pcmd);
	238	pcmd_r = pcmd;
	239	break;
	240	case GEN_CMD_CODE(_Write_MACREG):
	241	write_macreg_hdl(padapter, (u8 *)pcmd);
	242	pcmd_r = pcmd;
	243	break;
	244	case GEN_CMD_CODE(_Read_BBREG):
	245	read_bbreg_hdl(padapter, (u8 *)pcmd);
	246	break;
	247	case GEN_CMD_CODE(_Write_BBREG):
	248	write_bbreg_hdl(padapter, (u8 *)pcmd);
	249	break;
	250	case GEN_CMD_CODE(_Read_RFREG):
	251	read_rfreg_hdl(padapter, (u8 *)pcmd);
	252	break;
	253	case GEN_CMD_CODE(_Write_RFREG):
	254	write_rfreg_hdl(padapter, (u8 *)pcmd);
	255	break;
	256	case GEN_CMD_CODE(_SetUsbSuspend):
	257	sys_suspend_hdl(padapter, (u8 *)pcmd);
	258	break;
	259	case GEN_CMD_CODE(_JoinBss):
	260	r8712_joinbss_reset(padapter);
	261	/* Before set JoinBss_CMD to FW, driver must ensure FW is in
	262	* PS_MODE_ACTIVE. Directly write rpwm to radio on and assign
	263	* new pwr_mode to Driver, instead of use workitem to change
ed9c838a PV	264	* state.
ed9c838a PV	265	*/
2865d42c LF	266	if (padapter->pwrctrlpriv.pwr_mode > PS_MODE_ACTIVE) {
2865d42c LF	267	padapter->pwrctrlpriv.pwr_mode = PS_MODE_ACTIVE;
5c2ba8b8	268	mutex_lock(&padapter->pwrctrlpriv.mutex_lock);
2865d42c	269	r8712_set_rpwm(padapter, PS_STATE_S4);
5c2ba8b8	270	mutex_unlock(&padapter->pwrctrlpriv.mutex_lock);
2865d42c LF	271	}
	272	pcmd_r = pcmd;
	273	break;
	274	case _DRV_INT_CMD_:
	275	r871x_internal_cmd_hdl(padapter, pcmd->parmbuf);
	276	r8712_free_cmd_obj(pcmd);
	277	pcmd_r = NULL;
	278	break;
	279	default:
	280	pcmd_r = pcmd;
	281	break;
	282	}
	283	return pcmd_r; /* if returning pcmd_r == NULL, pcmd must be free. */
	284	}
	285
	286	static u8 check_cmd_fifo(struct _adapter *padapter, uint sz)
	287	{
8ffca9ea	288	return _SUCCESS;
2865d42c LF	289	}
	290
	291	u8 r8712_fw_cmd(struct _adapter *pAdapter, u32 cmd)
	292	{
	293	int pollingcnts = 50;
	294
	295	r8712_write32(pAdapter, IOCMD_CTRL_REG, cmd);
	296	msleep(100);
97e2ba90	297	while ((r8712_read32(pAdapter, IOCMD_CTRL_REG != 0)) &&
2865d42c LF	298	(pollingcnts > 0)) {
	299	pollingcnts--;
	300	msleep(20);
	301	}
	302	if (pollingcnts == 0)
	303	return false;
	304	return true;
	305	}
	306
	307	void r8712_fw_cmd_data(struct _adapter pAdapter, u32 value, u8 flag)
	308	{
	309	if (flag == 0) /* set */
	310	r8712_write32(pAdapter, IOCMD_DATA_REG, *value);
	311	else /* query */
	312	*value = r8712_read32(pAdapter, IOCMD_DATA_REG);
	313	}
	314
	315	int r8712_cmd_thread(void *context)
	316	{
	317	struct cmd_obj *pcmd;
e8cd841b JB	318	unsigned int cmdsz, wr_sz;
e8cd841b JB	319	__le32 *pcmdbuf;
2865d42c LF	320	struct tx_desc *pdesc;
2865d42c LF	321	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
56238e45	322	struct _adapter *padapter = context;
2865d42c LF	323	struct cmd_priv *pcmdpriv = &(padapter->cmdpriv);
2865d42c LF	324
fee51243	325	allow_signal(SIGTERM);
2865d42c	326	while (1) {
0f89054a	327	if (wait_for_completion_interruptible(&pcmdpriv->cmd_queue_comp))
2865d42c	328	break;
1ca96884	329	if (padapter->bDriverStopped \|\| padapter->bSurpriseRemoved)
2865d42c LF	330	break;
	331	if (r8712_register_cmd_alive(padapter) != _SUCCESS)
	332	continue;
	333	_next:
	334	pcmd = r8712_dequeue_cmd(&(pcmdpriv->cmd_queue));
	335	if (!(pcmd)) {
	336	r8712_unregister_cmd_alive(padapter);
	337	continue;
	338	}
e8cd841b	339	pcmdbuf = (__le32 *)pcmdpriv->cmd_buf;
2865d42c LF	340	pdesc = (struct tx_desc *)pcmdbuf;
	341	memset(pdesc, 0, TXDESC_SIZE);
	342	pcmd = cmd_hdl_filter(padapter, pcmd);
	343	if (pcmd) { /* if pcmd != NULL, cmd will be handled by f/w */
adc08cc4	344	struct dvobj_priv *pdvobj = &padapter->dvobjpriv;
2865d42c	345	u8 blnPending = 0;
02a29d2d	346
2865d42c	347	pcmdpriv->cmd_issued_cnt++;
d913e54e	348	cmdsz = round_up(pcmd->cmdsz, 8);
2865d42c	349	wr_sz = TXDESC_SIZE + 8 + cmdsz;
4ef2de5a	350	pdesc->txdw0 \|= cpu_to_le32((wr_sz - TXDESC_SIZE) &
2865d42c LF	351	0x0000ffff);
	352	if (pdvobj->ishighspeed) {
	353	if ((wr_sz % 512) == 0)
	354	blnPending = 1;
	355	} else {
	356	if ((wr_sz % 64) == 0)
	357	blnPending = 1;
	358	}
	359	if (blnPending) /* 32 bytes for TX Desc - 8 offset */
	360	pdesc->txdw0 \|= cpu_to_le32(((TXDESC_SIZE +
	361	OFFSET_SZ + 8) << OFFSET_SHT) &
	362	0x00ff0000);
	363	else {
	364	pdesc->txdw0 \|= cpu_to_le32(((TXDESC_SIZE +
	365	OFFSET_SZ) <<
	366	OFFSET_SHT) &
	367	0x00ff0000);
	368	}
	369	pdesc->txdw0 \|= cpu_to_le32(OWN \| FSG \| LSG);
	370	pdesc->txdw1 \|= cpu_to_le32((0x13 << QSEL_SHT) &
	371	0x00001f00);
	372	pcmdbuf += (TXDESC_SIZE >> 2);
	373	*pcmdbuf = cpu_to_le32((cmdsz & 0x0000ffff) \|
	374	(pcmd->cmdcode << 16) \|
	375	(pcmdpriv->cmd_seq << 24));
77e73e8c	376	pcmdbuf += 2; /* 8 bytes alignment */
2865d42c LF	377	memcpy((u8 *)pcmdbuf, pcmd->parmbuf, pcmd->cmdsz);
2865d42c LF	378	while (check_cmd_fifo(padapter, wr_sz) == _FAIL) {
1ca96884 LB	379	if (padapter->bDriverStopped \|\|
1ca96884 LB	380	padapter->bSurpriseRemoved)
2865d42c LF	381	break;
	382	msleep(100);
	383	continue;
	384	}
	385	if (blnPending)
	386	wr_sz += 8; /* Append 8 bytes */
	387	r8712_write_mem(padapter, RTL8712_DMA_H2CCMD, wr_sz,
	388	(u8 *)pdesc);
	389	pcmdpriv->cmd_seq++;
	390	if (pcmd->cmdcode == GEN_CMD_CODE(_CreateBss)) {
	391	pcmd->res = H2C_SUCCESS;
	392	pcmd_callback = cmd_callback[pcmd->
	393	cmdcode].callback;
	394	if (pcmd_callback)
	395	pcmd_callback(padapter, pcmd);
	396	continue;
	397	}
	398	if (pcmd->cmdcode == GEN_CMD_CODE(_SetPwrMode)) {
	399	if (padapter->pwrctrlpriv.bSleep) {
5c2ba8b8 BJ	400	mutex_lock(&padapter->
5c2ba8b8 BJ	401	pwrctrlpriv.mutex_lock);
2865d42c	402	r8712_set_rpwm(padapter, PS_STATE_S2);
5c2ba8b8	403	mutex_unlock(&padapter->pwrctrlpriv.mutex_lock);
2865d42c LF	404	}
	405	}
	406	r8712_free_cmd_obj(pcmd);
df353f61	407	if (list_empty(&pcmdpriv->cmd_queue.queue)) {
2865d42c LF	408	r8712_unregister_cmd_alive(padapter);
2865d42c LF	409	continue;
168a2c10	410	} else {
2865d42c	411	goto _next;
168a2c10 LB	412	}
168a2c10 LB	413	} else {
2865d42c	414	goto _next;
168a2c10	415	}
2865d42c LF	416	flush_signals_thread();
	417	}
	418	/* free all cmd_obj resources */
	419	do {
	420	pcmd = r8712_dequeue_cmd(&(pcmdpriv->cmd_queue));
7fcf92c0	421	if (!pcmd)
2865d42c LF	422	break;
	423	r8712_free_cmd_obj(pcmd);
	424	} while (1);
204a8ac1	425	complete(&pcmdpriv->terminate_cmdthread_comp);
2865d42c LF	426	thread_exit();
	427	}
	428
bcb91a5c	429	void r8712_event_handle(struct _adapter padapter, __le32 peventbuf)
2865d42c LF	430	{
	431	u8 evt_code, evt_seq;
	432	u16 evt_sz;
	433	void (event_callback)(struct _adapter dev, u8 *pbuf);
	434	struct evt_priv *pevt_priv = &(padapter->evtpriv);
	435
7fcf92c0	436	if (!peventbuf)
2865d42c LF	437	goto _abort_event_;
	438	evt_sz = (u16)(le32_to_cpu(*peventbuf) & 0xffff);
	439	evt_seq = (u8)((le32_to_cpu(*peventbuf) >> 24) & 0x7f);
	440	evt_code = (u8)((le32_to_cpu(*peventbuf) >> 16) & 0xff);
	441	/* checking event sequence... */
	442	if ((evt_seq & 0x7f) != pevt_priv->event_seq) {
	443	pevt_priv->event_seq = ((evt_seq + 1) & 0x7f);
	444	goto _abort_event_;
	445	}
	446	/* checking if event code is valid */
	447	if (evt_code >= MAX_C2HEVT) {
4ef2de5a	448	pevt_priv->event_seq = ((evt_seq + 1) & 0x7f);
2865d42c LF	449	goto _abort_event_;
	450	} else if ((evt_code == GEN_EVT_CODE(_Survey)) &&
	451	(evt_sz > sizeof(struct wlan_bssid_ex))) {
4ef2de5a	452	pevt_priv->event_seq = ((evt_seq + 1) & 0x7f);
2865d42c LF	453	goto _abort_event_;
	454	}
	455	/* checking if event size match the event parm size */
	456	if ((wlanevents[evt_code].parmsize) &&
	457	(wlanevents[evt_code].parmsize != evt_sz)) {
4ef2de5a	458	pevt_priv->event_seq = ((evt_seq + 1) & 0x7f);
2865d42c LF	459	goto _abort_event_;
2865d42c LF	460	} else if ((evt_sz == 0) && (evt_code != GEN_EVT_CODE(_WPS_PBC))) {
4ef2de5a	461	pevt_priv->event_seq = ((evt_seq + 1) & 0x7f);
2865d42c LF	462	goto _abort_event_;
	463	}
	464	pevt_priv->event_seq++; /* update evt_seq */
	465	if (pevt_priv->event_seq > 127)
	466	pevt_priv->event_seq = 0;
57b6686e TP	467	/* move to event content, 8 bytes alignment */
57b6686e TP	468	peventbuf = peventbuf + 2;
a376932a DC	469	event_callback = wlanevents[evt_code].event_callback;
	470	if (event_callback)
	471	event_callback(padapter, (u8 *)peventbuf);
2865d42c LF	472	pevt_priv->evt_done_cnt++;
	473	_abort_event_:
	474	return;
	475	}