Merge branches 'master' and 'rm48/master'

[rpp-test-sw.git] / rpp-test-sw / commands / cmd_vbat.c

diff --git a/rpp-test-sw/commands/cmd_vbat.c b/rpp-test-sw/commands/cmd_vbat.c
new file mode 100644 (file)
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+++ b/rpp-test-sw/commands/cmd_vbat.c
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+/*
+ * Copyright (C) 2012-2013 Czech Technical University in Prague
+ *
+ * Created on: 28.2.2013
+ *
+ * Authors:
+ *     - Michal Horn
+ *
+ * This document contains proprietary information belonging to Czech
+ * Technical University in Prague. Passing on and copying of this
+ * document, and communication of its contents is not permitted
+ * without prior written authorization.
+ *
+ * File : cmd_vbat.c
+ *
+ * Abstract:
+ *      Commands for VBAT control
+ *          - Power VBAT1 on and off using PWM to charge capacitors
+ *
+ */
+
+#include "cmd_vbat.h"
+
+#ifndef DOCGEN
+
+#include "rpp/rpp.h"
+#include "hal/hal.h"
+
+#define VBATPWM_PERIOD 400
+
+/** Delay between set and clear vbat */
+static int vbatPwmRampProfile[] = {
+       19,
+       20,
+       21,
+       23,
+       27,
+       30,
+       0
+};
+
+/**
+ *     @brief  Runs PWM defined by ramp profile on VBAT1
+ *
+ *     @return value on VBAT port
+ */
+int vbat1_pwm()
+{
+       int *ppwm = vbatPwmRampProfile;
+       int pwm;
+       volatile uint8_t val = 1;
+       int i, j;
+       int pulse_cnt = 100;
+       uint32_t desc;
+
+       desc = PIN_DSC_VBAT1EN;
+       hal_gpio_pin_set_value(desc, 0);
+       hal_gpio_pin_direction_output(desc, 0);
+       vTaskDelay(10/portTICK_RATE_MS+2);
+       _disable_IRQ();
+       while ((pwm = *(ppwm++)))
+               for (i = 0; i < pulse_cnt; i++) {
+                       hal_gpio_pin_set_value(desc, 1);
+                       for (j = 0; j < pwm; j++)
+                               ;
+                       hal_gpio_pin_set_value(desc, 0);
+                       for (j = 0; j < VBATPWM_PERIOD - pwm; j++)
+                               ;
+               }
+       hal_gpio_pin_set_value(desc, 1);
+       _enable_IRQ();
+       return hal_gpio_pin_get_value(desc);
+}
+
+/**
+ * @brief      Power on VBAT and VBAT1 using PWM
+ *
+ * @param[in]  cmd_io  Pointer to IO stack
+ * @param[in]  des             Pointer to command descriptor
+ * @param[in]  param   Parameters of command
+ * @return     value on VBAT port
+ */
+int cmd_do_power_on(cmd_io_t *cmd_io, const struct cmd_des *des, char *param[])
+{
+       int ret = 0;
+
+       hal_gpio_pin_set_value(PIN_DSC_VBATEN, 1);
+       ret = hal_gpio_pin_get_value(PIN_DSC_VBATEN);
+       ret |= vbat1_pwm() << 1;
+       return cmd_opchar_replong(cmd_io, param, ret, 0, 0);
+}
+
+/**
+ * @brief      Power off VBAT and VBAT1 using PWM
+ *
+ * @param[in]  cmd_io  Pointer to IO stack
+ * @param[in]  des             Pointer to command descriptor
+ * @param[in]  param   Parameters of command
+ * @return     value on VBAT port
+ */
+int cmd_do_power_off(cmd_io_t *cmd_io, const struct cmd_des *des, char *param[])
+{
+       int ret = 0;
+
+       hal_gpio_pin_set_value(PIN_DSC_VBAT1EN, 0);
+       ret = hal_gpio_pin_get_value(PIN_DSC_VBAT1EN);
+       hal_gpio_pin_set_value(PIN_DSC_VBATEN, 0);
+       ret |= hal_gpio_pin_get_value(PIN_DSC_VBATEN) << 1;
+       return cmd_opchar_replong(cmd_io, param, ret, 0, 0);
+}
+
+#endif  /* DOCGEN */
+
+/** Command descriptor for poweron */
+cmd_des_t const cmd_des_power_on = {
+       0, 0,
+       "poweron","Enable VBATEN and VBAT1EN power supply by using PWM hack",
+       "### Command syntax ###\n"
+       "\n"
+       "    poweron\n"
+       "\n"
+       "### Description ###\n"
+       "\n"
+       "This command tries to work around error on VBAT power supply wiring\n"
+       "and attempts to switch the power supply on.\n"
+       "\n"
+       "It turns on the VBAT voltage by slowly charging the capacitors\n"
+       "connected to the VBAT1 signal by using the software-generated PWM\n"
+       "signal with increasing duty cycle.\n"
+       "\n"
+       "The poweron command has to be launched before any access to any SPI\n"
+       "peripherals, otherwise they will not work (or the power supply has to\n"
+       "be electrically bypassed).\n"
+       "\n"
+       "Please note that parameters for the PWM signal may change from device\n"
+       "to device and it might be necessary to tune them (in source code) for\n"
+       "each device.\n",
+       CMD_HANDLER(cmd_do_power_on), (void *)&cmd_list_vbat
+};
+
+/** Command descriptor for poweroff */
+cmd_des_t const cmd_des_power_off = {
+       0, 0,
+       "poweroff","Disables VBATEN and VBAT1EN power supply",
+       "### Command syntax ###\n"
+       "\n"
+       "    poweroff\n"
+       "\n"
+       "### Description ###\n"
+       "\n"
+       "This command turns off VBAT and VBAT1 voltages.\n",
+       CMD_HANDLER(cmd_do_power_off), (void *)&cmd_list_vbat
+};
+
+/** List of commands for vbat, defined as external */
+cmd_des_t const *cmd_list_vbat[] = {
+       &cmd_des_power_on,
+       &cmd_des_power_off,
+       NULL
+};