pwr.c

   1 /**
   2  * This file is part of samsung-ril.
   3  *
   4  * Copyright (C) 2010-2011 Joerie de Gram <j.de.gram@gmail.com>
   5  * Copyright (C) 2011-2012 Paul Kocialkowski <contact@paulk.fr>
   6  *
   7  * samsung-ril is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation, either version 3 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * samsung-ril is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with samsung-ril.  If not, see <http://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 #define LOG_TAG "RIL-PWR"
  23 #include <utils/Log.h>
  24
  25 #include "samsung-ril.h"
  26 #include "util.h"
  27
  28 /**
  29  * Out: RIL_UNSOL_RESPONSE_RADIO_STATE_CHANGED
  30  *   Modem lets us know it's powered on. Though, it's still in LPM and should
  31  *   be considered as OFF. Send this to update RILJ radio state (OFF)
  32  */
  33 void ipc_pwr_phone_pwr_up(void)
  34 {
  35         ril_data.state.radio_state = RADIO_STATE_OFF;
  36         ril_data.state.power_state = IPC_PWR_PHONE_STATE_LPM;
  37
  38         ril_request_unsolicited(RIL_UNSOL_RESPONSE_RADIO_STATE_CHANGED, NULL, 0);
  39 }
  40
  41 /**
  42  * In: IPC_PWR_PHONE_STATE
  43  *   Noti from the modem giving current power mode (LPM or NORMAL)
  44  *   LPM = Low Power Mode (airplane mode for instance)
  45  *
  46  * Out: RIL_UNSOL_RESPONSE_RADIO_STATE_CHANGED
  47  *   Update radio state according to modem power state
  48  */
  49 void ipc_pwr_phone_state(struct ipc_message_info *info)
  50 {
  51         uint8_t state = *((uint8_t *) info->data);
  52
  53         switch(state)
  54         {
  55                 case IPC_PWR_R(IPC_PWR_PHONE_STATE_LPM):
  56                         LOGD("Got power to LPM");
  57
  58                         if (ril_data.state.power_state == IPC_PWR_PHONE_STATE_NORMAL &&
  59                                 ril_data.tokens.radio_power != (RIL_Token) 0x00) {
  60                                 ril_request_complete(ril_data.tokens.radio_power, RIL_E_SUCCESS, NULL, 0);
  61                                 ril_data.tokens.radio_power = (RIL_Token) 0x00;
  62                         }
  63
  64                         ril_data.state.radio_state = RADIO_STATE_OFF;
  65                         ril_data.state.power_state = IPC_PWR_PHONE_STATE_LPM;
  66                         ril_request_unsolicited(RIL_UNSOL_RESPONSE_RADIO_STATE_CHANGED, NULL, 0);
  67                 break;
  68                 case IPC_PWR_R(IPC_PWR_PHONE_STATE_NORMAL):
  69                         LOGD("Got power to NORMAL");
  70
  71                         if (ril_data.state.power_state == IPC_PWR_PHONE_STATE_LPM &&
  72                                 ril_data.tokens.radio_power != (RIL_Token) 0x00) {
  73                                 ril_request_complete(ril_data.tokens.radio_power, RIL_E_SUCCESS, NULL, 0);
  74                                 ril_data.tokens.radio_power = (RIL_Token) 0x00;
  75                         }
  76
  77                         ril_data.state.radio_state = RADIO_STATE_SIM_NOT_READY;
  78                         ril_data.state.power_state = IPC_PWR_PHONE_STATE_NORMAL;
  79                         ril_request_unsolicited(RIL_UNSOL_RESPONSE_RADIO_STATE_CHANGED, NULL, 0);
  80                 break;
  81         }
  82
  83         ril_tokens_check();
  84 }
  85
  86 /**
  87  * In: RIL_REQUEST_RADIO_POWER
  88  *   Request ON or OFF radio power mode
  89  *
  90  * Out: IPC_PWR_PHONE_STATE
  91  *   Order the modem to get in required power mode
  92  */
  93 void ril_request_radio_power(RIL_Token t, void *data, size_t datalen)
  94 {
  95         int power_state = *((int *)data);
  96         unsigned short power_data;
  97
  98         LOGD("requested power_state is %d", power_state);
  99
 100         if (power_state > 0) {
 101                 LOGD("Request power to NORMAL");
 102                 power_data = IPC_PWR_PHONE_STATE_NORMAL;
 103
 104                 ipc_gen_phone_res_expect_to_abort(ril_request_get_id(t), IPC_PWR_PHONE_STATE);
 105                 ipc_fmt_send(IPC_PWR_PHONE_STATE, IPC_TYPE_EXEC, (void *) &power_data, sizeof(power_data), ril_request_get_id(t));
 106
 107                 ril_data.tokens.radio_power = t;
 108         } else {
 109                 LOGD("Request power to LPM");
 110                 power_data = IPC_PWR_PHONE_STATE_LPM;
 111
 112                 ipc_gen_phone_res_expect_to_abort(ril_request_get_id(t), IPC_PWR_PHONE_STATE);
 113                 ipc_fmt_send(IPC_PWR_PHONE_STATE, IPC_TYPE_EXEC, (void *) &power_data, sizeof(power_data), ril_request_get_id(t));
 114
 115                 ril_data.tokens.radio_power = t;
 116         }
 117 }