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annotate src/cs/drivers/drv_app/fchg/fchg_process.c @ 333:8a90038c0173

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FCHG: store discharge state as threshold index rather than percentage
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 14 Dec 2017 18:35:16 +0000
parents 8166b0afcf8c
children d583a1f5bd6a
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1 /*
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2 * In this module we are going to implement the main process functions
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3 * for FCHG.
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4 */
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5
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6 #include "fchg/fchg_env.h"
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7 #include "fchg/fchg_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 <string.h>
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13 #include <stdio.h>
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14
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15 extern UINT16 madc_vbat_2_physical(UINT16 adc_val);
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16
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17 void pwr_init_discharge(void)
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18 {
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19 pwr_ctrl->curr_disch_thresh = 0;
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20 }
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21
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22 static void handle_discharge(void)
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23 {
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24 UINT16 i;
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25 char trace[64];
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26
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27 /* first we need to find the current threshold we are at */
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28 i = pwr_ctrl->curr_disch_thresh;
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29 /* is there one below? */
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30 if (++i == pwr_ctrl->nb_thresholds)
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31 return;
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32 /* are we crossing it? */
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33 if (pwr_ctrl->batt_mv >= pwr_ctrl->batt_thresholds[i].bat_voltage)
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34 return;
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35 /* yes, we crossed it - see if we fell even further down */
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36 while (i < pwr_ctrl->nb_thresholds &&
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37 pwr_ctrl->batt_mv < pwr_ctrl->batt_thresholds[i].bat_voltage)
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38 i++;
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39 /* the last one was it */
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40 i--;
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41 pwr_ctrl->curr_disch_thresh = i;
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42 sprintf(trace, "Battery fell through %u%% mark",
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43 pwr_ctrl->batt_thresholds[i].remain_capa);
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44 rvf_send_trace(trace, strlen(trace), NULL_PARAM,
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45 RV_TRACE_LEVEL_WARNING, FCHG_USE_ID);
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46 }
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47
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48 static void charge_progress_trace(char *mode, UINT16 ichg)
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49 {
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50 char trace[64];
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51
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52 sprintf(trace, "%s charging: Vbat=%u Ichg=%u i2v=%u", mode,
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53 pwr_ctrl->batt_mv, ichg, pwr_ctrl->i2v_offset);
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54 rvf_send_trace(trace, strlen(trace), NULL_PARAM,
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55 RV_TRACE_LEVEL_DEBUG_LOW, FCHG_USE_ID);
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56 }
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57
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58 static void start_i2v_cal(void)
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59 {
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60 UINT16 bciconf;
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61
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62 rvf_send_trace("Calibrating i2v offset", 22, NULL_PARAM,
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63 RV_TRACE_LEVEL_DEBUG_HIGH, FCHG_USE_ID);
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64 pwr_ctrl->state = FCHG_STATE_I2V_CAL_2;
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65 bciconf = ABB_Read_Register_on_page(PAGE1, BCICONF);
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66 bciconf &= 0x3E0;
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67 bciconf |= pwr_ctrl->config.bciconf;
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68 ABB_Write_Register_on_page(PAGE1, BCICONF, bciconf);
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69 /*
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70 * Set the CHDISPA bit and start the zero calibration routine
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71 * of the I to V converter
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72 */
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73 ABB_Write_Register_on_page(PAGE0, BCICTL2, 0x0010);
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74 ABB_Write_Register_on_page(PAGE0, BCICTL2, 0x0019);
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75 }
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76
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77 static void start_ci_charging(void)
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78 {
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79 rvf_send_trace("Start CI charging", 17, NULL_PARAM,
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80 RV_TRACE_LEVEL_DEBUG_HIGH, FCHG_USE_ID);
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81 pwr_ctrl->state = FCHG_STATE_CI_CHARGING;
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82 /* Select constant current charging. The charger is disabled */
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83 ABB_Write_Register_on_page(PAGE0, BCICTL2, 0x0002);
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84 /* Program the DAC with the constant current value */
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85 ABB_Write_Register_on_page(PAGE0, CHGREG,
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86 pwr_ctrl->config.ci_current + pwr_ctrl->i2v_offset);
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87 /* Enable the charger */
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88 ABB_Write_Register_on_page(PAGE0, BCICTL2, 0x0003);
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89 }
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90
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91 static void start_cv_charging(UINT16 code)
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92 {
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93 rvf_send_trace("Start CV charging", 17, NULL_PARAM,
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94 RV_TRACE_LEVEL_DEBUG_HIGH, FCHG_USE_ID);
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95 pwr_ctrl->state = FCHG_STATE_CV_CHARGING;
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96 /* Select constant voltage charging. The charger is disabled */
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97 ABB_Write_Register_on_page(PAGE0, BCICTL2, 0);
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98 /* figure out the DAC code */
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99 while (code &&
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100 madc_vbat_2_physical(code) >= pwr_ctrl->config.charge_to_mv)
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101 code--;
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102 code++;
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103 rvf_send_trace("Voltage (DAC code) ", 19, code,
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104 RV_TRACE_LEVEL_DEBUG_LOW, FCHG_USE_ID);
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105 /* Program the DAC with the constant voltage value */
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106 ABB_Write_Register_on_page(PAGE0, CHGREG, code);
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107 /* Enable the charger */
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108 ABB_Write_Register_on_page(PAGE0, BCICTL2, 0x0001);
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109 }
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110
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111 static void start_charge_condition_met(void)
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112 {
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113 rvf_send_trace("Charge start condition met", 26, NULL_PARAM,
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114 RV_TRACE_LEVEL_DEBUG_HIGH, FCHG_USE_ID);
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115 if (pwr_ctrl->config.bciconf)
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116 start_i2v_cal();
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117 else {
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118 pwr_ctrl->i2v_offset = 0;
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119 start_ci_charging();
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120 }
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121 }
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122
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123 static int overvoltage_end_charge_check(void)
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124 {
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125 if (pwr_ctrl->batt_mv < pwr_ctrl->config.overvoltage)
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126 return 0;
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127 rvf_send_trace("Stopping charge by overvoltage condition", 40,
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128 NULL_PARAM, RV_TRACE_LEVEL_DEBUG_HIGH, FCHG_USE_ID);
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129 ABB_Write_Register_on_page(PAGE0, BCICTL2, 0);
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130 pwr_init_discharge();
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131 pwr_ctrl->state = FCHG_STATE_READY_TO_RECHARGE;
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132 return 1;
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133 }
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diff changeset
134
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 void pwr_process_adc(struct pwr_adc_ind_s *msg)
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 {
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 pwr_ctrl->batt_mv = madc_vbat_2_physical(msg->data[0]);
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 switch (pwr_ctrl->state) {
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 case FCHG_STATE_NO_EXT_PWR:
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 case FCHG_STATE_PWR_PLUG_TIMER:
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 case FCHG_STATE_NO_CHARGING:
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 handle_discharge();
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 return;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 case FCHG_STATE_READY_TO_CHARGE:
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 handle_discharge();
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 if (!(msg->data[9] & CHGPRES)) {
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 pwr_ctrl->state = FCHG_STATE_NO_EXT_PWR;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 return;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 }
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 if (pwr_ctrl->batt_mv >= pwr_ctrl->config.start_thresh)
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 start_charge_condition_met();
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 return;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 case FCHG_STATE_READY_TO_RECHARGE:
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 handle_discharge();
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 if (!(msg->data[9] & CHGPRES)) {
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 pwr_ctrl->state = FCHG_STATE_NO_EXT_PWR;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 return;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 }
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 if (pwr_ctrl->batt_mv >= pwr_ctrl->config.restart_thresh)
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 start_charge_condition_met();
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 return;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 case FCHG_STATE_I2V_CAL_1:
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 if (!(msg->data[9] & CHGPRES)) {
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 pwr_ctrl->state = FCHG_STATE_NO_EXT_PWR;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 return;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 }
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 if (pwr_ctrl->config.bciconf)
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 start_i2v_cal();
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 else {
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 pwr_ctrl->i2v_offset = 0;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 start_ci_charging();
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 }
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 return;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 case FCHG_STATE_I2V_CAL_2:
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 pwr_ctrl->i2v_offset = msg->data[2];
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 ABB_Write_Register_on_page(PAGE0, BCICTL2, 0);
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 rvf_send_trace("i2v offset (MADC code) ", 23,
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 pwr_ctrl->i2v_offset,
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 RV_TRACE_LEVEL_DEBUG_LOW, FCHG_USE_ID);
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 if (!(msg->data[9] & CHGPRES)) {
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 pwr_ctrl->state = FCHG_STATE_NO_EXT_PWR;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 return;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 }
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 start_ci_charging();
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 return;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 case FCHG_STATE_CI_CHARGING:
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 charge_progress_trace("CI", msg->data[2]);
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 if (!(msg->data[9] & CHGPRES)) {
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 ABB_Write_Register_on_page(PAGE0, BCICTL2, 0);
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 pwr_ctrl->state = FCHG_STATE_NO_EXT_PWR;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 return;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 }
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 if (overvoltage_end_charge_check())
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 return;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 if (pwr_ctrl->batt_mv >= pwr_ctrl->config.charge_to_mv)
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 start_cv_charging(msg->data[0]);
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 return;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 case FCHG_STATE_CV_CHARGING:
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 charge_progress_trace("CV", msg->data[2]);
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 if (!(msg->data[9] & CHGPRES)) {
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 ABB_Write_Register_on_page(PAGE0, BCICTL2, 0);
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 pwr_ctrl->state = FCHG_STATE_NO_EXT_PWR;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 return;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 }
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 if (overvoltage_end_charge_check())
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 return;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 if (msg->data[2] >=
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 pwr_ctrl->config.end_current + pwr_ctrl->i2v_offset)
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 return;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 rvf_send_trace("Stopping charge by low current condition", 40,
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 NULL_PARAM, RV_TRACE_LEVEL_DEBUG_HIGH,
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 FCHG_USE_ID);
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 ABB_Write_Register_on_page(PAGE0, BCICTL2, 0);
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 pwr_init_discharge();
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 pwr_ctrl->state = FCHG_STATE_READY_TO_RECHARGE;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 return;
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 default:
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 rvf_send_trace("Invalid state in pwr_process_adc()", 32,
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 pwr_ctrl->state, RV_TRACE_LEVEL_ERROR,
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 FCHG_USE_ID);
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 }
8166b0afcf8c FCHG: main ADC process implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 }