carlfw/src/cmd.c

   1 /*
   2  * carl9170 firmware - used by the ar9170 wireless device
   3  *
   4  * Code to handle commands from the host driver.
   5  *
   6  * Copyright (c) 2000-2005 ZyDAS Technology Corporation
   7  * Copyright (c) 2007-2009 Atheros Communications, Inc.
   8  * Copyright    2009    Johannes Berg <johannes@sipsolutions.net>
   9  * Copyright 2009, 2010 Christian Lamparter <chunkeey@googlemail.com>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License along
  22  * with this program; if not, write to the Free Software Foundation, Inc.,
  23  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  24  */
  25
  26 #include "carl9170.h"
  27 #include "io.h"
  28 #include "cam.h"
  29 #include "rf.h"
  30 #include "printf.h"
  31 #include "timer.h"
  32 #include "wl.h"
  33
  34 void handle_cmd(struct carl9170_rsp *resp)
  35 {
  36         struct carl9170_cmd *cmd = &dma_mem.reserved.cmd.cmd;
  37         unsigned int i;
  38
  39         /* copies cmd, len and extra fields */
  40         resp->hdr.hdr_data = cmd->hdr.hdr_data;
  41
  42         switch (cmd->hdr.cmd) {
  43         case CARL9170_CMD_RREG:
  44                 for (i = 0; i < (cmd->hdr.len / 4); i++)
  45                         resp->rreg_res.vals[i] = get(cmd->rreg.regs[i]);
  46                 break;
  47
  48         case CARL9170_CMD_WREG:
  49                 resp->hdr.len = 0;
  50                 for (i = 0; i < (cmd->hdr.len / 8); i++)
  51                         set(cmd->wreg.regs[i].addr, cmd->wreg.regs[i].val);
  52                 break;
  53
  54         case CARL9170_CMD_ECHO:
  55                 memcpy(resp->echo.vals, cmd->echo.vals, cmd->hdr.len);
  56                 break;
  57
  58         case CARL9170_CMD_SWRST:
  59                 resp->hdr.len = 0;
  60                 fw.wlan.mac_reset = CARL9170_MAC_RESET_FORCE;
  61                 break;
  62
  63         case CARL9170_CMD_REBOOT:
  64                 /*
  65                  * reboot does not return and generates no response
  66                  * resp->len = 0;
  67                  */
  68
  69                 reboot();
  70                 break;
  71
  72         case CARL9170_CMD_READ_TSF:
  73                 resp->hdr.len = 8;
  74                 read_tsf((uint32_t *)resp->tsf.tsf);
  75                 break;
  76
  77 #ifdef CONFIG_CARL9170FW_CAB_QUEUE
  78         case CARL9170_CMD_FLUSH_CAB:
  79                 resp->hdr.len = 0;
  80                 fw.wlan.cab_flush_trigger = CARL9170_CAB_TRIGGER_ARMED;
  81                 fw.wlan.cab_flush_time = get_clock_counter() +
  82                                          CARL9170_TBTT_DELTA;
  83                 break;
  84 #endif /* CONFIG_CARL9170FW_CAB_QUEUE */
  85
  86 #ifdef CONFIG_CARL9170FW_SECURITY_ENGINE
  87         case CARL9170_CMD_EKEY:
  88                 resp->hdr.len = 1;
  89                 set_key(&cmd->setkey);
  90                 break;
  91
  92         case CARL9170_CMD_DKEY:
  93                 /* Disable Key */
  94                 resp->hdr.len = 1;
  95                 disable_key(&cmd->disablekey);
  96                 break;
  97 #endif /* CONFIG_CARL9170FW_SECURIT_ENGINE */
  98
  99 #ifdef CONFIG_CARL9170FW_RADIO_FUNCTIONS
 100         case CARL9170_CMD_FREQUENCY:
 101         case CARL9170_CMD_RF_INIT:
 102                 rf_cmd(cmd, resp);
 103                 break;
 104
 105         case CARL9170_CMD_FREQ_START:
 106                 resp->hdr.len = 0;
 107                 rf_notify_set_channel();
 108                 break;
 109
 110 # ifdef CONFIG_CARL9170FW_PSM
 111         case CARL9170_CMD_PSM:
 112                 resp->hdr.len = 0;
 113                 fw.phy.psm.state = le32_to_cpu(cmd->psm.state);
 114                 rf_psm();
 115                 break;
 116 # endif /* CONFIG_CARL9170FW_PSM */
 117 #endif /* CONFIG_CARL9170FW_RADIO_FUNCTIOS */
 118
 119 #ifdef CONFIG_CARL9170FW_USB_WATCHDOG
 120         case CARL9170_CMD_USB_WD:
 121                 resp->hdr.len = 4;
 122                 fw.usb.watchdog.state = le32_to_cpu(cmd->watchdog.state);
 123                 break;
 124
 125 #endif /* CONFIG_CARL9170FW_USB_WATCHDOG */
 126
 127         default:
 128                 break;
 129         }
 130 }