mirror of
https://github.com/Telecominfraproject/OpenCellular.git
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8cf03ac056
The common/ subdir was getting cluttered. Move drivers for external components to a new driver/ tree, and move what used to be called chipset_*.c to a new power/ directory. This does not move/rename header files or CONFIG options. That will be done in subsequent steps, since moving and modifying .c files in the same CL is harder to review. BUG=chrome-os-partner:18343 BRANCH=none TEST=build all boards; pass unit tests Change-Id: I67a3003dc8564783a320335cf0e9620a21982d5e Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/173601 Reviewed-by: Bill Richardson <wfrichar@chromium.org> Tested-by: Bill Richardson <wfrichar@chromium.org> Reviewed-by: Vic Yang <victoryang@chromium.org>
138 lines
3.3 KiB
C
138 lines
3.3 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Common functions for battery charging.
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*/
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#include "charger.h"
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#include "common.h"
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#include "console.h"
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#include "host_command.h"
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#include "printf.h"
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#include "util.h"
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/* Console output macros */
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#define CPUTS(outstr) cputs(CC_CHARGER, outstr)
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#define CPRINTF(format, args...) cprintf(CC_CHARGER, format, ## args)
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int charger_closest_voltage(int voltage)
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{
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const struct charger_info *info;
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info = charger_get_info();
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return voltage - (voltage % info->voltage_step);
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}
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int charger_closest_current(int current)
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{
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const struct charger_info * const info = charger_get_info();
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/*
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* If the requested current is non-zero but below our minimum,
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* return the minimum. See crosbug.com/p/8662.
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*/
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if (current > 0 && current < info->current_min)
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return info->current_min;
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/* Clip to max */
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if (current > info->current_max)
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return info->current_max;
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/* Otherwise round down to nearest current step */
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return current - (current % info->current_step);
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}
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static void print_item_name(const char *name)
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{
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ccprintf(" %-8s", name);
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}
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static int check_print_error(int rv)
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{
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if (rv == EC_SUCCESS)
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return 1;
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ccputs(rv == EC_ERROR_UNIMPLEMENTED ? "(unsupported)\n" : "(error)\n");
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return 0;
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}
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static int print_info(void)
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{
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int d;
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const struct charger_info *info = charger_get_info();
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/* info */
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print_item_name("Name:");
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ccprintf("%s\n", info->name);
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/* option */
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print_item_name("Option:");
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if (check_print_error(charger_get_option(&d)))
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ccprintf("%016b (0x%04x)\n", d, d);
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/* manufacturer id */
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print_item_name("Man id:");
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if (check_print_error(charger_manufacturer_id(&d)))
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ccprintf("0x%04x\n", d);
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/* device id */
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print_item_name("Dev id:");
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if (check_print_error(charger_device_id(&d)))
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ccprintf("0x%04x\n", d);
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/* charge voltage limit */
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print_item_name("V_batt:");
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if (check_print_error(charger_get_voltage(&d)))
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ccprintf("%5d (%4d - %5d, %3d)\n", d,
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info->voltage_min, info->voltage_max,
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info->voltage_step);
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/* charge current limit */
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print_item_name("I_batt:");
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if (check_print_error(charger_get_current(&d)))
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ccprintf("%5d (%4d - %5d, %3d)\n", d,
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info->current_min, info->current_max,
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info->current_step);
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/* input current limit */
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print_item_name("I_in:");
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if (check_print_error(charger_get_input_current(&d)))
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ccprintf("%5d (%4d - %5d, %3d)\n", d,
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info->input_current_min, info->input_current_max,
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info->input_current_step);
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return EC_SUCCESS;
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}
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static int command_charger(int argc, char **argv)
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{
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int d;
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char *e;
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if (argc != 3)
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return print_info();
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if (strcasecmp(argv[1], "input") == 0) {
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d = strtoi(argv[2], &e, 0);
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if (*e)
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return EC_ERROR_PARAM2;
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return charger_set_input_current(d);
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} else if (strcasecmp(argv[1], "current") == 0) {
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d = strtoi(argv[2], &e, 0);
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if (*e)
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return EC_ERROR_PARAM2;
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return charger_set_current(d);
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} else if (strcasecmp(argv[1], "voltage") == 0) {
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d = strtoi(argv[2], &e, 0);
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if (*e)
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return EC_ERROR_PARAM2;
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return charger_set_voltage(d);
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} else
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return EC_ERROR_PARAM1;
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}
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DECLARE_CONSOLE_COMMAND(charger, command_charger,
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"[input | current | voltage] [newval]",
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"Get or set charger param(s)",
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NULL);
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