annotate src/cs/drivers/drv_app/fchg/fchg_task.c @ 281:a75eefbf8be4

Phone boot with PWON: weed out short button presses Every standard end user phone has a design provision, most naturally implemented in firmware, whereby the PWON button effects a boot only if it is held down long enough - short presses of this PWON button are detected, assumed to be spurious and cause the fw to power back off instead of proceeding with boot. The present change introduces this standard function in FreeCalypso.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 24 Sep 2021 02:03:08 +0000
parents aec644728174
children
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1 /*
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2 * The FCHG task's core function lives here.
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3 */
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4
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5 #include "fchg/fchg_env.h"
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6 #include "fchg/fchg_func_i.h"
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7 #include "fchg/bsim_func_i.h"
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8 #include "rv/rv_general.h"
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9 #include "rvf/rvf_api.h"
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10 #include "rvm/rvm_use_id_list.h"
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11 #include "abb/abb.h"
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12 #include "etm/etm.h"
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13 #include "etm/etm_api.h"
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15 static void set_initial_state(void)
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16 {
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17 SYS_UWORD16 abb_status;
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18
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19 abb_status = ABB_Read_Status();
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20 if (abb_status & CHGPRES) {
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21 if (pwr_ctrl->config_present || pwr_ctrl->bsim_mode)
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22 pwr_ctrl->state = FCHG_STATE_READY_TO_CHARGE;
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23 else
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24 pwr_ctrl->state = FCHG_STATE_NO_CHARGING;
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25 } else
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26 pwr_ctrl->state = FCHG_STATE_NO_EXT_PWR;
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27 }
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28
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29 T_RV_RET fchg_core(void)
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30 {
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31 BOOLEAN error_occured = FALSE;
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32 T_RV_HDR *msg_ptr;
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33
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34 rvf_send_trace("FCHG task: Initialization", 25, NULL_PARAM,
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35 RV_TRACE_LEVEL_DEBUG_LOW, FCHG_USE_ID);
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36 pwr_load_ffs_batt_table();
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37 pwr_check_ffs_bsim();
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38 if (!pwr_ctrl->bsim_mode)
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39 pwr_load_ffs_charging_config();
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40 set_initial_state();
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41 /* just for safety, clear any previous BCI hardware state */
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42 ABB_Write_Register_on_page(PAGE0, BCICTL2, 0);
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43 if (pwr_ctrl->bsim_mode) {
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44 bsim_init_percent();
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45 etm_register("BSIM", ETM_BSIM, 0, pwr_ctrl->addr_id, 0);
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46 } else
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47 pwr_init_discharge();
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49 /* loop to process messages */
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50 while (error_occured == FALSE)
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51 {
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52 /* Wait for the necessary events (infinite wait for a msg in the mailbox 0). */
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53 UINT16 received_event = rvf_wait (0xffff, 0);
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54
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55 /* If an event related to mailbox 0 is received, then */
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56 if (received_event & RVF_TASK_MBOX_0_EVT_MASK)
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57 {
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58 /* Read the message in the driver mailbox and delegate action..*/
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59 msg_ptr = (T_RV_HDR *) rvf_read_mbox(FCHG_MAILBOX);
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60 if (msg_ptr) {
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61 pwr_process_message(msg_ptr);
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62 rvf_free_buf ((void *) msg_ptr);
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63 }
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64 }
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65
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66 /* Timers */
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67 if (received_event & RVF_TIMER_0_EVT_MASK)
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68 pwr_handle_timer();
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69
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70 } // end of while
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71 return RV_OK;
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72 }