diff options
Diffstat (limited to 'drivers/staging/rtl8712/rtl8712_cmd.c')
| -rw-r--r-- | drivers/staging/rtl8712/rtl8712_cmd.c | 465 |
1 files changed, 465 insertions, 0 deletions
diff --git a/drivers/staging/rtl8712/rtl8712_cmd.c b/drivers/staging/rtl8712/rtl8712_cmd.c new file mode 100644 index 0000000..26c605e --- /dev/null +++ b/drivers/staging/rtl8712/rtl8712_cmd.c @@ -0,0 +1,465 @@ +/****************************************************************************** + * 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 "osdep_service.h" +#include "drv_types.h" +#include "recv_osdep.h" +#include "mlme_osdep.h" +#include "rtl871x_byteorder.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 privde 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 aligment */ + 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 aligment */ + if (peventbuf) { + event_callback = wlanevents[evt_code].event_callback; + if (event_callback) + event_callback(padapter, (u8 *)peventbuf); + } + pevt_priv->evt_done_cnt++; +_abort_event_: + return; +} |
