[deliverable/linux.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/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, *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 = (unsigned int *)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, 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)
		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 AB	34	#include <linux/slab.h>
	35	#include <linux/module.h>
	36	#include <linux/kref.h>
	37	#include <linux/netdevice.h>
	38	#include <linux/skbuff.h>
	39	#include <linux/usb.h>
	40	#include <linux/usb/ch9.h>
	41	#include <linux/circ_buf.h>
	42	#include <linux/uaccess.h>
	43	#include <asm/byteorder.h>
	44	#include <linux/atomic.h>
	45	#include <linux/semaphore.h>
	46	#include <linux/rtnetlink.h>
	47
2865d42c LF	48	#include "osdep_service.h"
	49	#include "drv_types.h"
	50	#include "recv_osdep.h"
	51	#include "mlme_osdep.h"
2865d42c LF	52	#include "rtl871x_ioctl_set.h"
	53
	54	static void check_hw_pbc(struct _adapter *padapter)
	55	{
	56	u8 tmp1byte;
	57
	58	r8712_write8(padapter, MAC_PINMUX_CTRL, (GPIOMUX_EN \| GPIOSEL_GPIO));
	59	tmp1byte = r8712_read8(padapter, GPIO_IO_SEL);
	60	tmp1byte &= ~(HAL_8192S_HW_GPIO_WPS_BIT);
	61	r8712_write8(padapter, GPIO_IO_SEL, tmp1byte);
	62	tmp1byte = r8712_read8(padapter, GPIO_CTRL);
	63	if (tmp1byte == 0xff)
77e73e8c	64	return;
4ef2de5a	65	if (tmp1byte & HAL_8192S_HW_GPIO_WPS_BIT) {
2865d42c	66	/* Here we only set bPbcPressed to true
ed9c838a PV	67	* After trigger PBC, the variable will be set to false
ed9c838a PV	68	*/
2865d42c LF	69	DBG_8712("CheckPbcGPIO - PBC is pressed !!!!\n");
2865d42c LF	70	/* 0 is the default value and it means the application monitors
ed9c838a PV	71	* the HW PBC doesn't provide its pid to driver.
ed9c838a PV	72	*/
2865d42c LF	73	if (padapter->pid == 0)
	74	return;
	75	kill_pid(find_vpid(padapter->pid), SIGUSR1, 1);
	76	}
	77	}
	78
	79	/* query rx phy status from fw.
	80	* Adhoc mode: beacon.
ed9c838a PV	81	* Infrastructure mode: beacon , data.
ed9c838a PV	82	*/
2865d42c LF	83	static void query_fw_rx_phy_status(struct _adapter *padapter)
	84	{
	85	u32 val32 = 0;
	86	int pollingcnts = 50;
	87
1ca96884	88	if (check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
2865d42c LF	89	r8712_write32(padapter, IOCMD_CTRL_REG, 0xf4000001);
	90	msleep(100);
	91	/* Wait FW complete IO Cmd */
	92	while ((r8712_read32(padapter, IOCMD_CTRL_REG)) &&
	93	(pollingcnts > 0)) {
	94	pollingcnts--;
	95	msleep(20);
	96	}
	97	if (pollingcnts != 0)
	98	val32 = r8712_read32(padapter, IOCMD_DATA_REG);
	99	else /* time out */
	100	val32 = 0;
ae52e527	101	val32 >>= 4;
2865d42c LF	102	padapter->recvpriv.fw_rssi =
	103	(u8)r8712_signal_scale_mapping(val32);
	104	}
	105	}
	106
	107	/* check mlme, hw, phy, or dynamic algorithm status. */
	108	static void StatusWatchdogCallback(struct _adapter *padapter)
	109	{
	110	check_hw_pbc(padapter);
	111	query_fw_rx_phy_status(padapter);
	112	}
	113
	114	static void r871x_internal_cmd_hdl(struct _adapter padapter, u8 pbuf)
	115	{
	116	struct drvint_cmd_parm *pdrvcmd;
	117
	118	if (!pbuf)
	119	return;
	120	pdrvcmd = (struct drvint_cmd_parm *)pbuf;
	121	switch (pdrvcmd->i_cid) {
	122	case WDG_WK_CID:
	123	StatusWatchdogCallback(padapter);
	124	break;
	125	default:
	126	break;
	127	}
	128	kfree(pdrvcmd->pbuf);
	129	}
	130
	131	static u8 read_macreg_hdl(struct _adapter padapter, u8 pbuf)
	132	{
	133	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
	134	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
	135
	136	/* invoke cmd->callback function */
	137	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
7fcf92c0	138	if (!pcmd_callback)
2865d42c LF	139	r8712_free_cmd_obj(pcmd);
	140	else
	141	pcmd_callback(padapter, pcmd);
	142	return H2C_SUCCESS;
	143	}
	144
	145	static u8 write_macreg_hdl(struct _adapter padapter, u8 pbuf)
	146	{
	147	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
	148	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
	149
	150	/* invoke cmd->callback function */
	151	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
7fcf92c0	152	if (!pcmd_callback)
2865d42c LF	153	r8712_free_cmd_obj(pcmd);
	154	else
	155	pcmd_callback(padapter, pcmd);
	156	return H2C_SUCCESS;
	157	}
	158
	159	static u8 read_bbreg_hdl(struct _adapter padapter, u8 pbuf)
	160	{
	161	u32 val;
	162	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
2865d42c LF	163	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
2865d42c LF	164
2865d42c LF	165	if (pcmd->rsp && pcmd->rspsz > 0)
	166	memcpy(pcmd->rsp, (u8 *)&val, pcmd->rspsz);
	167	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
7fcf92c0	168	if (!pcmd_callback)
2865d42c LF	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);
2865d42c LF	178	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
2865d42c LF	179
2865d42c	180	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
7fcf92c0	181	if (!pcmd_callback)
2865d42c LF	182	r8712_free_cmd_obj(pcmd);
	183	else
	184	pcmd_callback(padapter, pcmd);
	185	return H2C_SUCCESS;
	186	}
	187
	188	static u8 read_rfreg_hdl(struct _adapter padapter, u8 pbuf)
	189	{
	190	u32 val;
	191	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
2865d42c LF	192	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
2865d42c LF	193
2865d42c LF	194	if (pcmd->rsp && pcmd->rspsz > 0)
	195	memcpy(pcmd->rsp, (u8 *)&val, pcmd->rspsz);
	196	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
7fcf92c0	197	if (!pcmd_callback)
2865d42c LF	198	r8712_free_cmd_obj(pcmd);
	199	else
	200	pcmd_callback(padapter, pcmd);
	201	return H2C_SUCCESS;
	202	}
	203
	204	static u8 write_rfreg_hdl(struct _adapter padapter, u8 pbuf)
	205	{
	206	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
2865d42c LF	207	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
2865d42c LF	208
2865d42c	209	pcmd_callback = cmd_callback[pcmd->cmdcode].callback;
7fcf92c0	210	if (!pcmd_callback)
2865d42c LF	211	r8712_free_cmd_obj(pcmd);
	212	else
	213	pcmd_callback(padapter, pcmd);
	214	return H2C_SUCCESS;
	215	}
	216
	217	static u8 sys_suspend_hdl(struct _adapter padapter, u8 pbuf)
	218	{
	219	struct cmd_obj pcmd = (struct cmd_obj )pbuf;
2865d42c	220
2865d42c LF	221	r8712_free_cmd_obj(pcmd);
	222	return H2C_SUCCESS;
	223	}
	224
	225	static struct cmd_obj cmd_hdl_filter(struct _adapter padapter,
	226	struct cmd_obj *pcmd)
	227	{
	228	struct cmd_obj *pcmd_r;
	229
7fcf92c0	230	if (!pcmd)
2865d42c LF	231	return pcmd;
	232	pcmd_r = NULL;
	233
	234	switch (pcmd->cmdcode) {
	235	case GEN_CMD_CODE(_Read_MACREG):
	236	read_macreg_hdl(padapter, (u8 *)pcmd);
	237	pcmd_r = pcmd;
	238	break;
	239	case GEN_CMD_CODE(_Write_MACREG):
	240	write_macreg_hdl(padapter, (u8 *)pcmd);
	241	pcmd_r = pcmd;
	242	break;
	243	case GEN_CMD_CODE(_Read_BBREG):
	244	read_bbreg_hdl(padapter, (u8 *)pcmd);
	245	break;
	246	case GEN_CMD_CODE(_Write_BBREG):
	247	write_bbreg_hdl(padapter, (u8 *)pcmd);
	248	break;
	249	case GEN_CMD_CODE(_Read_RFREG):
	250	read_rfreg_hdl(padapter, (u8 *)pcmd);
	251	break;
	252	case GEN_CMD_CODE(_Write_RFREG):
	253	write_rfreg_hdl(padapter, (u8 *)pcmd);
	254	break;
	255	case GEN_CMD_CODE(_SetUsbSuspend):
	256	sys_suspend_hdl(padapter, (u8 *)pcmd);
	257	break;
	258	case GEN_CMD_CODE(_JoinBss):
	259	r8712_joinbss_reset(padapter);
	260	/* Before set JoinBss_CMD to FW, driver must ensure FW is in
	261	* PS_MODE_ACTIVE. Directly write rpwm to radio on and assign
	262	* new pwr_mode to Driver, instead of use workitem to change
ed9c838a PV	263	* state.
ed9c838a PV	264	*/
2865d42c LF	265	if (padapter->pwrctrlpriv.pwr_mode > PS_MODE_ACTIVE) {
2865d42c LF	266	padapter->pwrctrlpriv.pwr_mode = PS_MODE_ACTIVE;
5c2ba8b8	267	mutex_lock(&padapter->pwrctrlpriv.mutex_lock);
2865d42c	268	r8712_set_rpwm(padapter, PS_STATE_S4);
5c2ba8b8	269	mutex_unlock(&padapter->pwrctrlpriv.mutex_lock);
2865d42c LF	270	}
	271	pcmd_r = pcmd;
	272	break;
	273	case _DRV_INT_CMD_:
	274	r871x_internal_cmd_hdl(padapter, pcmd->parmbuf);
	275	r8712_free_cmd_obj(pcmd);
	276	pcmd_r = NULL;
	277	break;
	278	default:
	279	pcmd_r = pcmd;
	280	break;
	281	}
	282	return pcmd_r; /* if returning pcmd_r == NULL, pcmd must be free. */
	283	}
	284
	285	static u8 check_cmd_fifo(struct _adapter *padapter, uint sz)
	286	{
8ffca9ea	287	return _SUCCESS;
2865d42c LF	288	}
	289
	290	u8 r8712_fw_cmd(struct _adapter *pAdapter, u32 cmd)
	291	{
	292	int pollingcnts = 50;
	293
	294	r8712_write32(pAdapter, IOCMD_CTRL_REG, cmd);
	295	msleep(100);
97e2ba90	296	while ((r8712_read32(pAdapter, IOCMD_CTRL_REG != 0)) &&
2865d42c LF	297	(pollingcnts > 0)) {
	298	pollingcnts--;
	299	msleep(20);
	300	}
	301	if (pollingcnts == 0)
	302	return false;
	303	return true;
	304	}
	305
	306	void r8712_fw_cmd_data(struct _adapter pAdapter, u32 value, u8 flag)
	307	{
	308	if (flag == 0) /* set */
	309	r8712_write32(pAdapter, IOCMD_DATA_REG, *value);
	310	else /* query */
	311	*value = r8712_read32(pAdapter, IOCMD_DATA_REG);
	312	}
	313
	314	int r8712_cmd_thread(void *context)
	315	{
	316	struct cmd_obj *pcmd;
e29d3ebc	317	unsigned int cmdsz, wr_sz, *pcmdbuf;
2865d42c LF	318	struct tx_desc *pdesc;
2865d42c LF	319	void (pcmd_callback)(struct _adapter dev, struct cmd_obj *pcmd);
56238e45	320	struct _adapter *padapter = context;
2865d42c LF	321	struct cmd_priv *pcmdpriv = &(padapter->cmdpriv);
2865d42c LF	322
fee51243	323	allow_signal(SIGTERM);
2865d42c	324	while (1) {
0f89054a	325	if (wait_for_completion_interruptible(&pcmdpriv->cmd_queue_comp))
2865d42c	326	break;
1ca96884	327	if (padapter->bDriverStopped \|\| padapter->bSurpriseRemoved)
2865d42c LF	328	break;
	329	if (r8712_register_cmd_alive(padapter) != _SUCCESS)
	330	continue;
	331	_next:
	332	pcmd = r8712_dequeue_cmd(&(pcmdpriv->cmd_queue));
	333	if (!(pcmd)) {
	334	r8712_unregister_cmd_alive(padapter);
	335	continue;
	336	}
	337	pcmdbuf = (unsigned int *)pcmdpriv->cmd_buf;
2865d42c LF	338	pdesc = (struct tx_desc *)pcmdbuf;
	339	memset(pdesc, 0, TXDESC_SIZE);
	340	pcmd = cmd_hdl_filter(padapter, pcmd);
	341	if (pcmd) { /* if pcmd != NULL, cmd will be handled by f/w */
adc08cc4	342	struct dvobj_priv *pdvobj = &padapter->dvobjpriv;
2865d42c	343	u8 blnPending = 0;
02a29d2d	344
2865d42c	345	pcmdpriv->cmd_issued_cnt++;
d913e54e	346	cmdsz = round_up(pcmd->cmdsz, 8);
2865d42c	347	wr_sz = TXDESC_SIZE + 8 + cmdsz;
4ef2de5a	348	pdesc->txdw0 \|= cpu_to_le32((wr_sz - TXDESC_SIZE) &
2865d42c LF	349	0x0000ffff);
	350	if (pdvobj->ishighspeed) {
	351	if ((wr_sz % 512) == 0)
	352	blnPending = 1;
	353	} else {
	354	if ((wr_sz % 64) == 0)
	355	blnPending = 1;
	356	}
	357	if (blnPending) /* 32 bytes for TX Desc - 8 offset */
	358	pdesc->txdw0 \|= cpu_to_le32(((TXDESC_SIZE +
	359	OFFSET_SZ + 8) << OFFSET_SHT) &
	360	0x00ff0000);
	361	else {
	362	pdesc->txdw0 \|= cpu_to_le32(((TXDESC_SIZE +
	363	OFFSET_SZ) <<
	364	OFFSET_SHT) &
	365	0x00ff0000);
	366	}
	367	pdesc->txdw0 \|= cpu_to_le32(OWN \| FSG \| LSG);
	368	pdesc->txdw1 \|= cpu_to_le32((0x13 << QSEL_SHT) &
	369	0x00001f00);
	370	pcmdbuf += (TXDESC_SIZE >> 2);
	371	*pcmdbuf = cpu_to_le32((cmdsz & 0x0000ffff) \|
	372	(pcmd->cmdcode << 16) \|
	373	(pcmdpriv->cmd_seq << 24));
77e73e8c	374	pcmdbuf += 2; /* 8 bytes alignment */
2865d42c LF	375	memcpy((u8 *)pcmdbuf, pcmd->parmbuf, pcmd->cmdsz);
2865d42c LF	376	while (check_cmd_fifo(padapter, wr_sz) == _FAIL) {
1ca96884 LB	377	if (padapter->bDriverStopped \|\|
1ca96884 LB	378	padapter->bSurpriseRemoved)
2865d42c LF	379	break;
	380	msleep(100);
	381	continue;
	382	}
	383	if (blnPending)
	384	wr_sz += 8; /* Append 8 bytes */
	385	r8712_write_mem(padapter, RTL8712_DMA_H2CCMD, wr_sz,
	386	(u8 *)pdesc);
	387	pcmdpriv->cmd_seq++;
	388	if (pcmd->cmdcode == GEN_CMD_CODE(_CreateBss)) {
	389	pcmd->res = H2C_SUCCESS;
	390	pcmd_callback = cmd_callback[pcmd->
	391	cmdcode].callback;
	392	if (pcmd_callback)
	393	pcmd_callback(padapter, pcmd);
	394	continue;
	395	}
	396	if (pcmd->cmdcode == GEN_CMD_CODE(_SetPwrMode)) {
	397	if (padapter->pwrctrlpriv.bSleep) {
5c2ba8b8 BJ	398	mutex_lock(&padapter->
5c2ba8b8 BJ	399	pwrctrlpriv.mutex_lock);
2865d42c	400	r8712_set_rpwm(padapter, PS_STATE_S2);
5c2ba8b8	401	mutex_unlock(&padapter->pwrctrlpriv.mutex_lock);
2865d42c LF	402	}
	403	}
	404	r8712_free_cmd_obj(pcmd);
df353f61	405	if (list_empty(&pcmdpriv->cmd_queue.queue)) {
2865d42c LF	406	r8712_unregister_cmd_alive(padapter);
2865d42c LF	407	continue;
168a2c10	408	} else {
2865d42c	409	goto _next;
168a2c10 LB	410	}
168a2c10 LB	411	} else {
2865d42c	412	goto _next;
168a2c10	413	}
2865d42c LF	414	flush_signals_thread();
	415	}
	416	/* free all cmd_obj resources */
	417	do {
	418	pcmd = r8712_dequeue_cmd(&(pcmdpriv->cmd_queue));
7fcf92c0	419	if (!pcmd)
2865d42c LF	420	break;
	421	r8712_free_cmd_obj(pcmd);
	422	} while (1);
204a8ac1	423	complete(&pcmdpriv->terminate_cmdthread_comp);
2865d42c LF	424	thread_exit();
	425	}
	426
	427	void r8712_event_handle(struct _adapter padapter, uint peventbuf)
	428	{
	429	u8 evt_code, evt_seq;
	430	u16 evt_sz;
	431	void (event_callback)(struct _adapter dev, u8 *pbuf);
	432	struct evt_priv *pevt_priv = &(padapter->evtpriv);
	433
7fcf92c0	434	if (!peventbuf)
2865d42c LF	435	goto _abort_event_;
	436	evt_sz = (u16)(le32_to_cpu(*peventbuf) & 0xffff);
	437	evt_seq = (u8)((le32_to_cpu(*peventbuf) >> 24) & 0x7f);
	438	evt_code = (u8)((le32_to_cpu(*peventbuf) >> 16) & 0xff);
	439	/* checking event sequence... */
	440	if ((evt_seq & 0x7f) != pevt_priv->event_seq) {
	441	pevt_priv->event_seq = ((evt_seq + 1) & 0x7f);
	442	goto _abort_event_;
	443	}
	444	/* checking if event code is valid */
	445	if (evt_code >= MAX_C2HEVT) {
4ef2de5a	446	pevt_priv->event_seq = ((evt_seq + 1) & 0x7f);
2865d42c LF	447	goto _abort_event_;
	448	} else if ((evt_code == GEN_EVT_CODE(_Survey)) &&
	449	(evt_sz > sizeof(struct wlan_bssid_ex))) {
4ef2de5a	450	pevt_priv->event_seq = ((evt_seq + 1) & 0x7f);
2865d42c LF	451	goto _abort_event_;
	452	}
	453	/* checking if event size match the event parm size */
	454	if ((wlanevents[evt_code].parmsize) &&
	455	(wlanevents[evt_code].parmsize != evt_sz)) {
4ef2de5a	456	pevt_priv->event_seq = ((evt_seq + 1) & 0x7f);
2865d42c LF	457	goto _abort_event_;
2865d42c LF	458	} else if ((evt_sz == 0) && (evt_code != GEN_EVT_CODE(_WPS_PBC))) {
4ef2de5a	459	pevt_priv->event_seq = ((evt_seq + 1) & 0x7f);
2865d42c LF	460	goto _abort_event_;
	461	}
	462	pevt_priv->event_seq++; /* update evt_seq */
	463	if (pevt_priv->event_seq > 127)
	464	pevt_priv->event_seq = 0;
57b6686e TP	465	/* move to event content, 8 bytes alignment */
57b6686e TP	466	peventbuf = peventbuf + 2;
a376932a DC	467	event_callback = wlanevents[evt_code].event_callback;
	468	if (event_callback)
	469	event_callback(padapter, (u8 *)peventbuf);
2865d42c LF	470	pevt_priv->evt_done_cnt++;
	471	_abort_event_:
	472	return;
	473	}