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libskycharge-local.c
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libskycharge-local.c
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/*
* Copyright (C) 2021-2022 Skycharge GmbH
* Author: Roman Penyaev <[email protected]>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met: 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <assert.h>
#include <errno.h>
#include <string.h>
#include <pthread.h>
#include <unistd.h>
#include <stdarg.h>
#include <sys/file.h>
#include <libserialport.h>
#include <gps.h>
#include "libskycharge-pri.h"
#include "libskybms.h"
#include "libskydp.h"
#include "types.h"
#include "crc8.h"
#include "hw1-pri.h"
#include "hw2-pri.h"
enum {
TO_BUF = 0,
FROM_BUF = 1,
COUNT_SZ = 2,
TIMEOUT_MS = 5000,
CHECK_ALL = 0,
CHECK_MAGIC = 1,
};
struct skyloc_dev {
struct sky_dev dev;
struct sp_port *port;
struct gps_data_t gpsdata;
struct bms_lib bms;
bool gps_nodev;
pthread_mutex_t mutex;
int lockfd;
};
struct skyserial_desc {
uint8_t req_hdr_len;
uint8_t req_data_off;
uint8_t rsp_hdr_len;
uint8_t rsp_data_off;
void (*fill_cmd_hdr)(uint8_t *cmd_buf, uint8_t len, uint8_t cmd);
bool (*is_valid_rsp_hdr)(const uint8_t *rsp_buf, uint8_t len, uint8_t cmd,
bool only_magic, int *rc);
uint8_t (*get_rsp_len)(const uint8_t *rsp_buf);
bool (*check_crc)(const uint8_t *rsp_buf);
};
struct sky_hw_ops {
int (*get_hw_info)(struct skyloc_dev *dev, struct sky_hw_info *info);
int (*get_params)(struct skyloc_dev *dev,
struct sky_dev_params *params);
int (*set_params)(struct skyloc_dev *dev,
const struct sky_dev_params *params);
int (*get_state)(struct skyloc_dev *dev,
struct sky_charging_state *state);
int (*reset)(struct skyloc_dev *dev);
int (*scan)(struct skyloc_dev *dev, unsigned autoscan);
int (*get_sink_params)(struct skyloc_dev *dev,
struct sky_dev_params *params);
int (*set_sink_params)(struct skyloc_dev *dev,
const struct sky_dev_params *params);
int (*get_sink_info)(struct skyloc_dev *dev,
struct sky_sink_info *info);
int (*sink_start_charge)(struct skyloc_dev *dev);
int (*sink_stop_charge)(struct skyloc_dev *dev);
int (*sink_flash_erase_page)(struct skyloc_dev *dev, uint32_t addr);
int (*sink_flash_write_chunk)(struct skyloc_dev *dev,
const struct sky_flash_chunk *chunk);
int (*sink_flash_info)(struct skyloc_dev *dev,
struct sky_flash_info *info);
int (*sink_flash_set_start_addr)(struct skyloc_dev *dev, uint32_t addr);
int (*sink_passthru_msg_send)(struct skyloc_dev *dev, const struct sky_passthru_msg *msg);
int (*sink_passthru_msg_recv)(struct skyloc_dev *dev, struct sky_passthru_msg *msg);
};
static inline int sprc_to_errno(enum sp_return sprc)
{
switch (sprc) {
case SP_OK:
return 0;
case SP_ERR_ARG:
/** Invalid arguments were passed to the function. */
return -EINVAL;
case SP_ERR_FAIL:
/** A system error occurred while executing the operation. */
/** Here we pretend this is is EBADF */
return -EBADF;
case SP_ERR_MEM:
/** A memory allocation failed while executing the operation. */
return -ENOMEM;
case SP_ERR_SUPP:
/** The requested operation is not supported. */
return -EOPNOTSUPP;
default:
/* WTF? */
return -EOPNOTSUPP;
}
}
static int devlock(struct skyloc_dev *dev)
{
int rc;
rc = flock(dev->lockfd, LOCK_EX);
if (rc < 0) {
rc = -errno;
sky_err("flock(): %s\n", strerror(-rc));
}
pthread_mutex_lock(&dev->mutex);
return rc;
}
static void devunlock(struct skyloc_dev *dev)
{
(void)flock(dev->lockfd, LOCK_UN);
pthread_mutex_unlock(&dev->mutex);
}
static int skycmd_arg_copy(va_list *ap, int dir, void *buf,
size_t off, size_t maxlen)
{
uint32_t val32, *val32p;
uint16_t val16, *val16p;
void *p;
uint8_t sz;
sz = va_arg(*ap, int);
switch (sz) {
case 0:
return -EINVAL;
case 2:
val16p = va_arg(*ap, typeof(val16p));
if (off + 2 > maxlen)
return -EOVERFLOW;
if (dir == TO_BUF) {
val16 = htole16(*val16p);
memcpy(buf + off, &val16, 2);
} else if (dir == FROM_BUF) {
memcpy(&val16, buf + off, 2);
*val16p = htole16(val16);
}
return 2;
case 4:
val32p = va_arg(*ap, typeof(val32p));
if (off + 4 > maxlen)
return -EOVERFLOW;
if (dir == TO_BUF) {
val32 = htole32(*val32p);
memcpy(buf + off, &val32, 4);
} else if (dir == FROM_BUF) {
memcpy(&val32, buf + off, 4);
*val32p = htole32(val32);
}
return 4;
default:
/* No attempt to do conversion between bytes order */
p = va_arg(*ap, typeof(p));
if (off >= maxlen)
return -EOVERFLOW;
sz = min_t(size_t, sz, maxlen - off);
if (dir == TO_BUF)
memcpy(buf + off, p, sz);
else if (dir == FROM_BUF)
memcpy(p, buf + off, sz);
return sz;
}
}
static int skycmd_args_inbytes(va_list ap, size_t num, size_t maxlen)
{
va_list ap_cpy;
int off, i;
int rc;
va_copy(ap_cpy, ap);
for (off = 0, i = 0; i < num; i++) {
rc = skycmd_arg_copy(&ap_cpy, COUNT_SZ, NULL, off, maxlen);
if (rc < 0) {
off = rc;
goto out;
}
off += rc;
}
out:
va_end(ap_cpy);
return off;
}
static int skycmd_serial_cmd_vargs(struct skyloc_dev *dev,
struct skyserial_desc *proto,
uint8_t cmd, unsigned req_num,
int rsp_num, va_list ap)
{
uint8_t len, cmd_len, read_len, rsp_len = 0;
uint8_t cmd_buf[256], rsp_buf[256];
enum sp_return sprc;
int rc, args, off;
va_list ap_cpy;
char strdump_req[512];
char strdump_rsp[512];
bool valid_crc;
va_copy(ap_cpy, ap);
for (len = 0, off = proto->req_data_off, args = 0; args < req_num; args++) {
rc = skycmd_arg_copy(&ap_cpy, TO_BUF, cmd_buf, off,
sizeof(cmd_buf) - 1);
if (rc < 0) {
goto out;
}
len += rc;
off += rc;
}
proto->fill_cmd_hdr(cmd_buf, len, cmd);
rc = devlock(dev);
if (rc)
goto out;
sprc = sp_flush(dev->port, SP_BUF_BOTH);
if (sprc < 0) {
rc = sprc_to_errno(sprc);
sky_err("sp_flush(): %s\n", strerror(-rc));
goto out_unlock;
}
cmd_len = len + proto->req_hdr_len;
sprc = sp_blocking_write(dev->port, cmd_buf, cmd_len, TIMEOUT_MS);
if (sprc < 0) {
rc = sprc_to_errno(sprc);
sky_err("sp_blocking_write(): %s\n", strerror(-rc));
goto out_unlock;
} else if (sprc != cmd_len) {
sky_err("sp_blocking_write(): failed to write within %d ms timeout, only %d is written, but expected %d\n",
TIMEOUT_MS, sprc, cmd_len);
rc = -ETIMEDOUT;
goto out_unlock;
}
if (rsp_num >= 0) {
rc = skycmd_args_inbytes(ap_cpy, rsp_num, sizeof(rsp_buf));
if (rc < 0) {
sky_err("skycmd_args_inbytes(): %s\n", strerror(-rc));
goto out_unlock;
}
len = rc;
if (len > sizeof(rsp_buf) - proto->rsp_hdr_len) {
rc = -EINVAL;
sky_err("skycmd_args_inbytes(): %s\n", strerror(-rc));
goto out_unlock;
}
/* Firstly read header */
sprc = sp_blocking_read(dev->port, rsp_buf, proto->rsp_data_off,
TIMEOUT_MS);
if (sprc < 0) {
rc = sprc_to_errno(sprc);
sky_err("sp_blocking_read(): %s\n", strerror(-rc));
goto out_unlock;
} else if (sprc != proto->rsp_data_off) {
sky_err("sp_blocking_read(): failed to read within %d ms timeout, only %d is read, but expected %d\n",
TIMEOUT_MS, sprc, proto->rsp_data_off);
rc = -ETIMEDOUT;
goto out_unlock;
} else if (!proto->is_valid_rsp_hdr(rsp_buf, len + proto->rsp_hdr_len,
cmd, CHECK_MAGIC, NULL)) {
hex_dump_to_buffer(cmd_buf, cmd_len, 16, 1,
strdump_req, sizeof(strdump_req),
false);
hex_dump_to_buffer(rsp_buf, proto->rsp_data_off, 16, 1,
strdump_rsp, sizeof(strdump_rsp),
false);
sky_err("Invalid response header\n\n"
"Request hexdump:\n%s\n"
"Response header hexdump:\n%s\n",
strdump_req, strdump_rsp);
rc = -EPROTO;
goto out_unlock;
}
/*
* Read the rest, for HW2 we don't care about the size for
* the compatibility sake.
*/
rsp_len = min(len, proto->get_rsp_len(rsp_buf));
read_len = proto->get_rsp_len(rsp_buf) + proto->rsp_hdr_len;
sprc = sp_blocking_read(dev->port, rsp_buf + proto->rsp_data_off,
read_len - proto->rsp_data_off,
TIMEOUT_MS);
if (sprc < 0) {
rc = sprc_to_errno(sprc);
sky_err("sp_blocking_read(): %s\n", strerror(-rc));
goto out_unlock;
} else if (sprc != read_len - proto->rsp_data_off) {
sky_err("sp_blocking_read(): failed to read within %d ms timeout, only %d is read, but expected %d\n",
TIMEOUT_MS, sprc, read_len - proto->rsp_data_off);
rc = -ETIMEDOUT;
goto out_unlock;
} else if (!(valid_crc = proto->check_crc(rsp_buf)) ||
!proto->is_valid_rsp_hdr(rsp_buf, read_len, cmd,
CHECK_ALL, &rc)) {
hex_dump_to_buffer(cmd_buf, cmd_len, 16, 1,
strdump_req, sizeof(strdump_req), false);
hex_dump_to_buffer(rsp_buf, read_len, 16, 1,
strdump_rsp, sizeof(strdump_rsp), false);
if (!valid_crc)
sky_err("Invalid response CRC\n\n");
else
sky_err("Invalid response\n\n");
sky_err("Request hexdump:\n%s\n"
"Response hexdump:\n%s\n",
strdump_req, strdump_rsp);
rc = -EPROTO;
goto out_unlock;
}
/* Check response errno */
if (rc)
goto out_unlock;
for (off = proto->rsp_data_off, args = 0;
off < rsp_len + proto->rsp_data_off && args < rsp_num;
args++) {
rc = skycmd_arg_copy(&ap_cpy, FROM_BUF, rsp_buf, off,
rsp_len + proto->rsp_data_off);
if (rc < 0) {
if (rc != -EOVERFLOW) {
sky_err("skycmd_arg_copy(): %s\n",
strerror(-rc));
goto out_unlock;
}
/* Stop copying if no space for output */
break;
}
off += rc;
}
}
rc = rsp_len;
out_unlock:
devunlock(dev);
out:
va_end(ap_cpy);
return rc;
}
static int skycmd_serial_cmd(struct skyloc_dev *dev,
struct skyserial_desc *proto,
uint8_t cmd, unsigned req_num,
int rsp_num,
...)
{
va_list args;
int rc;
va_start(args, rsp_num);
rc = skycmd_serial_cmd_vargs(dev, proto, cmd, req_num, rsp_num, args);
va_end(args);
return rc >= 0 ? 0 : rc;
}
static int __skycmd_serial_cmd(struct skyloc_dev *dev,
struct skyserial_desc *proto,
uint8_t cmd, unsigned req_num,
int rsp_num,
...)
{
va_list args;
int rc;
va_start(args, rsp_num);
rc = skycmd_serial_cmd_vargs(dev, proto, cmd, req_num, rsp_num, args);
va_end(args);
return rc;
}
/*
* HW1 specific operations
*/
static bool hw1_sky_is_valid_rsp_hdr(const uint8_t *rsp_buf, uint8_t len,
uint8_t cmd, bool only_magic, int *rc)
{
if (only_magic)
return (rsp_buf[0] == 0x55);
*rc = 0;
return (rsp_buf[0] == 0x55 && rsp_buf[1] == len && rsp_buf[2] == cmd);
}
static uint8_t hw1_sky_get_rsp_len(const uint8_t *rsp_buf)
{
/* Without header */
return rsp_buf[1] - 4;
}
static void hw1_sky_fill_cmd_hdr(uint8_t *cmd_buf, uint8_t len, uint8_t cmd)
{
cmd_buf[0] = 0x55;
cmd_buf[1] = len + 4;
cmd_buf[2] = cmd;
cmd_buf[len + 3] = 0x00;
}
static bool hw1_sky_check_crc(const uint8_t *rsp_buf)
{
return true;
}
struct skyserial_desc hw1_sky_serial = {
.req_hdr_len = 4,
.req_data_off = 3,
.rsp_hdr_len = 4,
.rsp_data_off = 3,
.fill_cmd_hdr = hw1_sky_fill_cmd_hdr,
.is_valid_rsp_hdr = hw1_sky_is_valid_rsp_hdr,
.get_rsp_len = hw1_sky_get_rsp_len,
.check_crc = hw1_sky_check_crc,
};
static int hw1_sky_get_hw_info(struct skyloc_dev *dev,
struct sky_hw_info *info)
{
uint8_t major, minor, revis;
int rc;
rc = skycmd_serial_cmd(dev, &hw1_sky_serial,
SKY_HW1_FIRMWARE_VERSION_CMD,
0, 3,
sizeof(major), &major,
sizeof(minor), &minor,
sizeof(revis), &revis);
if (rc)
return rc;
*info = (struct sky_hw_info) {
.fw_version = major << 16 | minor << 8 | revis,
.hw_version = 2 << 16 | 30 << 8 | 2 /* 2.30b, latest HW1, I hope */
};
return 0;
}
static int hw1_sky_get_param(struct skyloc_dev *dev,
uint8_t param, uint16_t *val)
{
return skycmd_serial_cmd(dev, &hw1_sky_serial,
SKY_HW1_GET_PARAMETER_CMD,
1, 2,
sizeof(param), ¶m,
sizeof(param), ¶m, sizeof(*val), val);
}
static int hw1_sky_get_params(struct skyloc_dev *dev,
struct sky_dev_params *params)
{
uint16_t val = 0;
int rc, i;
/* Fetch params from EEPROM */
rc = skycmd_serial_cmd(dev, &hw1_sky_serial,
SKY_HW1_READ_DATA_FROM_EEP_CMD,
0, 0);
if (rc)
return rc;
for (i = 0; i < SKY_HW1_NUM_DEVPARAM; i++) {
if (!(params->dev_params_bits & (1<<i)))
continue;
rc = hw1_sky_get_param(dev, i, &val);
if (rc)
return rc;
params->dev_params[i] = val;
}
return 0;
}
static int hw1_sky_set_param(struct skyloc_dev *dev,
uint8_t param, uint16_t val)
{
return skycmd_serial_cmd(dev, &hw1_sky_serial,
SKY_HW1_SET_PARAMETER_CMD,
2, 2,
sizeof(param), ¶m, sizeof(val), &val,
sizeof(param), ¶m, sizeof(val), &val);
}
static int hw1_sky_set_params(struct skyloc_dev *dev,
const struct sky_dev_params *params)
{
uint16_t val;
int rc, i;
for (i = 0; i < SKY_HW1_NUM_DEVPARAM; i++) {
if (!(params->dev_params_bits & (1<<i)))
continue;
val = params->dev_params[i];
rc = hw1_sky_set_param(dev, i, val);
if (rc)
return rc;
}
/* Commit params to EEPROM */
return skycmd_serial_cmd(dev, &hw1_sky_serial,
SKY_HW1_SAVE_DATA_TO_EEP_CMD,
0, 0);
}
static int hw1_sky_get_state(struct skyloc_dev *dev,
struct sky_charging_state *state)
{
uint16_t vol, cur;
uint8_t status;
int rc;
rc = skycmd_serial_cmd(dev, &hw1_sky_serial,
SKY_HW1_GET_VOLTAGE_CMD,
0, 1,
sizeof(vol), &vol);
if (rc)
return rc;
rc = skycmd_serial_cmd(dev, &hw1_sky_serial,
SKY_HW1_GET_CURRENT_CMD,
0, 1,
sizeof(cur), &cur);
if (rc)
return rc;
rc = skycmd_serial_cmd(dev, &hw1_sky_serial,
SKY_HW1_GET_STATUS_CMD,
0, 1,
sizeof(status), &status);
if (rc)
return rc;
state->voltage_mV = vol;
state->current_mA = cur;
state->dev_hw_state = status;
return 0;
}
static int hw1_sky_reset(struct skyloc_dev *dev)
{
return skycmd_serial_cmd(dev, &hw1_sky_serial,
SKY_HW1_RESET_CMD, 0, -1);
}
static int hw1_sky_scan(struct skyloc_dev *dev, unsigned autoscan)
{
uint8_t ascan = !!autoscan;
return skycmd_serial_cmd(dev, &hw1_sky_serial,
SKY_HW1_AUTOMATIC_SCAN_CMD,
1, 1,
sizeof(ascan), &ascan,
sizeof(ascan), &ascan);
}
static int hw1_sky_get_sink_params(struct skyloc_dev *dev,
struct sky_dev_params *params)
{
return -EOPNOTSUPP;
}
static int hw1_sky_set_sink_params(struct skyloc_dev *dev,
const struct sky_dev_params *params)
{
return -EOPNOTSUPP;
}
static int hw1_sky_get_sink_info(struct skyloc_dev *dev,
struct sky_sink_info *info)
{
return -EOPNOTSUPP;
}
static int hw1_sky_sink_start_charge(struct skyloc_dev *dev)
{
return -EOPNOTSUPP;
}
static int hw1_sky_sink_stop_charge(struct skyloc_dev *dev)
{
return -EOPNOTSUPP;
}
static int hw1_sky_sink_flash_erase_page(struct skyloc_dev *dev,
uint32_t addr)
{
return -EOPNOTSUPP;
}
static int hw1_sky_sink_flash_write_chunk(struct skyloc_dev *dev,
const struct sky_flash_chunk *chunk)
{
return -EOPNOTSUPP;
}
static int hw1_sky_sink_flash_info(struct skyloc_dev *dev,
struct sky_flash_info *info)
{
return -EOPNOTSUPP;
}
static int hw1_sky_sink_flash_set_start_addr(struct skyloc_dev *dev,
uint32_t addr)
{
return -EOPNOTSUPP;
}
static int hw1_sky_sink_passthru_msg_send(struct skyloc_dev *dev,
const struct sky_passthru_msg *msg)
{
return -EOPNOTSUPP;
}
static int hw1_sky_sink_passthru_msg_recv(struct skyloc_dev *dev,
struct sky_passthru_msg *msg)
{
return -EOPNOTSUPP;
}
static struct sky_hw_ops hw1_sky_ops = {
.get_hw_info = hw1_sky_get_hw_info,
.get_params = hw1_sky_get_params,
.set_params = hw1_sky_set_params,
.get_state = hw1_sky_get_state,
.reset = hw1_sky_reset,
.scan = hw1_sky_scan,
.get_sink_params = hw1_sky_get_sink_params,
.set_sink_params = hw1_sky_set_sink_params,
.get_sink_info = hw1_sky_get_sink_info,
.sink_start_charge = hw1_sky_sink_start_charge,
.sink_stop_charge = hw1_sky_sink_stop_charge,
.sink_flash_erase_page = hw1_sky_sink_flash_erase_page,
.sink_flash_write_chunk = hw1_sky_sink_flash_write_chunk,
.sink_flash_info = hw1_sky_sink_flash_info,
.sink_flash_set_start_addr = hw1_sky_sink_flash_set_start_addr,
.sink_passthru_msg_send = hw1_sky_sink_passthru_msg_send,
.sink_passthru_msg_recv = hw1_sky_sink_passthru_msg_recv,
};
/*
* HW2 specific operations
*/
static bool hw2_sky_is_valid_rsp_hdr(const uint8_t *rsp_buf, uint8_t len,
uint8_t cmd, bool only_magic, int *rc)
{
uint8_t type;
if (only_magic)
return (rsp_buf[0] == 0x42);
type = rsp_buf[3] & 0xf;
*rc = -skyerrno_to_errno(rsp_buf[3] >> 4);
/*
* A bit of compatibility: we don't care about the length at all
* TODO: the 3'rd byte is type of response, in future need to
* support events as well
*/
return (rsp_buf[0] == 0x42 && type == SKY_HW2_SYNC_RESPONSE_CMD);
}
static uint8_t hw2_sky_get_rsp_len(const uint8_t *rsp_buf)
{
return rsp_buf[2];
}
static void hw2_sky_fill_cmd_hdr(uint8_t *cmd_buf, uint8_t len, uint8_t cmd)
{
cmd_buf[0] = 0x42;
cmd_buf[2] = len;
cmd_buf[3] = cmd;
cmd_buf[1] = crc8(cmd_buf + 2, len + 4 - 2, 0);
}
static bool hw2_sky_check_crc(const uint8_t *rsp_buf)
{
uint8_t crc;
crc = crc8((uint8_t *)rsp_buf + 2, rsp_buf[2] + 2, 0);
return (crc == rsp_buf[1]);
}
struct skyserial_desc hw2_sky_serial = {
.req_hdr_len = 4,
.req_data_off = 4,
.rsp_hdr_len = 4,
.rsp_data_off = 4,
.fill_cmd_hdr = hw2_sky_fill_cmd_hdr,
.is_valid_rsp_hdr = hw2_sky_is_valid_rsp_hdr,
.get_rsp_len = hw2_sky_get_rsp_len,
.check_crc = hw2_sky_check_crc,
};
static int hw2_sky_get_hw_info(struct skyloc_dev *dev,
struct sky_hw_info *info)
{
return skycmd_serial_cmd(dev, &hw2_sky_serial,
SKY_HW2_GET_MUX_INFO_CMD,
0, 1,
sizeof(*info), info);
}
static int hw2_sky_get_params(struct skyloc_dev *dev,
struct sky_dev_params *params)
{
struct sky_hw2_mux_settings settings;
int p, rc;
memset(&settings, 0, sizeof(settings));
rc = skycmd_serial_cmd(dev, &hw2_sky_serial,
SKY_HW2_GET_MUX_SETTINGS_CMD,
0, 1,
sizeof(settings), &settings);
if (rc)
return rc;
for (p = 0; p < SKY_HW2_NUM_DEVPARAM; p++) {
if (!(params->dev_params_bits & (1<<p)))
continue;
switch (p) {
case SKY_HW2_IGNORE_INVAL_CHARGING_SETTINGS:
params->dev_params[p] =
settings.bool_settings & SKY_HW2_IGNORE_INVAL_CHARGING_SETTINGS_BIT;
break;
case SKY_HW2_IGNORE_LOW_BATT_VOLTAGE:
params->dev_params[p] =
settings.bool_settings & SKY_HW2_IGNORE_LOW_BATT_VOLTAGE_BIT;
break;
case SKY_HW2_KEEP_SILENCE:
params->dev_params[p] =
settings.bool_settings & SKY_HW2_KEEP_SILENCE_BIT;
break;
case SKY_HW2_USE_FIXED_V_I:
params->dev_params[p] =
settings.bool_settings & SKY_HW2_USE_FIXED_V_I_BIT;
break;
case SKY_HW2_IGNORE_VOLTAGE_ON_OUTPUT:
params->dev_params[p] =
settings.bool_settings & SKY_HW2_IGNORE_VOLTAGE_ON_OUTPUT_BIT;
break;
case SKY_HW2_PSU_TYPE:
params->dev_params[p] =
settings.psu_type;
break;
case SKY_HW2_DETECT_MODE:
params->dev_params[p] =
settings.detect_mode;
break;
case SKY_HW2_PSU_FIXED_VOLTAGE_MV:
params->dev_params[p] =
settings.psu_fixed_voltage_mV;
break;
case SKY_HW2_PSU_FIXED_CURRENT_MA:
params->dev_params[p] =
settings.psu_fixed_current_mA;
break;
case SKY_HW2_NR_BAD_HEARTBEATS:
params->dev_params[p] =
settings.nr_bad_heartbeats;
break;
case SKY_HW2_ERROR_INDICATION_TIMEOUT_SECS:
params->dev_params[p] =
settings.error_indication_timeout_secs;
break;
case SKY_HW2_MIN_SENSE_CURRENT_MA:
params->dev_params[p] =
settings.min_sense_current_mA;
break;
case SKY_HW2_REPEAT_CHARGE_AFTER_MINS:
params->dev_params[p] =
settings.repeat_charge_after_mins;
break;
case SKY_HW2_SENSE_VOLTAGE_CALIB_POINT1_MV:
params->dev_params[p] =
calib_point_to_uint32(settings.sense_calib.voltage_p1_mV.set,
settings.sense_calib.voltage_p1_mV.read);
break;
case SKY_HW2_SENSE_VOLTAGE_CALIB_POINT2_MV:
params->dev_params[p] =
calib_point_to_uint32(settings.sense_calib.voltage_p2_mV.set,
settings.sense_calib.voltage_p2_mV.read);
break;
case SKY_HW2_SENSE_CURRENT_CALIB_POINT1_MA:
params->dev_params[p] =
calib_point_to_uint32(settings.sense_calib.current_p1_mA.set,
settings.sense_calib.current_p1_mA.read);
break;
case SKY_HW2_SENSE_CURRENT_CALIB_POINT2_MA:
params->dev_params[p] =
calib_point_to_uint32(settings.sense_calib.current_p2_mA.set,
settings.sense_calib.current_p2_mA.read);
break;
case SKY_HW2_PSU_VOLTAGE_CALIB_POINT1_MV:
params->dev_params[p] =
calib_point_to_uint32(settings.psu_calib.voltage_p1_mV.set,
settings.psu_calib.voltage_p1_mV.read);
break;
case SKY_HW2_PSU_VOLTAGE_CALIB_POINT2_MV:
params->dev_params[p] =
calib_point_to_uint32(settings.psu_calib.voltage_p2_mV.set,
settings.psu_calib.voltage_p2_mV.read);
break;
case SKY_HW2_PSU_CURRENT_CALIB_POINT1_MA:
params->dev_params[p] =
calib_point_to_uint32(settings.psu_calib.current_p1_mA.set,
settings.psu_calib.current_p1_mA.read);
break;
case SKY_HW2_PSU_CURRENT_CALIB_POINT2_MA:
params->dev_params[p] =
calib_point_to_uint32(settings.psu_calib.current_p2_mA.set,
settings.psu_calib.current_p2_mA.read);
break;
}
}
return 0;
}
static int hw2_sky_set_params(struct skyloc_dev *dev,
const struct sky_dev_params *params)
{
struct sky_hw2_mux_settings settings;
enum sky_hw2_mux_settings_bits bit;
int p, rc;
/* First retreive settings */
memset(&settings, 0, sizeof(settings));
rc = skycmd_serial_cmd(dev, &hw2_sky_serial,
SKY_HW2_GET_MUX_SETTINGS_CMD,
0, 1,
sizeof(settings), &settings);
if (rc)
return rc;
for (p = 0; p < SKY_HW2_NUM_DEVPARAM; p++) {
if (!(params->dev_params_bits & (1<<p)))
continue;
switch (p) {
case SKY_HW2_IGNORE_INVAL_CHARGING_SETTINGS:
bit = SKY_HW2_IGNORE_INVAL_CHARGING_SETTINGS_BIT;
if (params->dev_params[p])
settings.bool_settings |= bit;
else
settings.bool_settings &= ~bit;
break;
case SKY_HW2_IGNORE_LOW_BATT_VOLTAGE:
bit = SKY_HW2_IGNORE_LOW_BATT_VOLTAGE_BIT;
if (params->dev_params[p])
settings.bool_settings |= bit;
else
settings.bool_settings &= ~bit;
break;
case SKY_HW2_KEEP_SILENCE:
bit = SKY_HW2_KEEP_SILENCE_BIT;
if (params->dev_params[p])
settings.bool_settings |= bit;
else
settings.bool_settings &= ~bit;
break;
case SKY_HW2_USE_FIXED_V_I:
bit = SKY_HW2_USE_FIXED_V_I_BIT;
if (params->dev_params[p])
settings.bool_settings |= bit;
else
settings.bool_settings &= ~bit;
break;
case SKY_HW2_IGNORE_VOLTAGE_ON_OUTPUT:
bit = SKY_HW2_IGNORE_VOLTAGE_ON_OUTPUT_BIT;
if (params->dev_params[p])
settings.bool_settings |= bit;
else
settings.bool_settings &= ~bit;
break;
case SKY_HW2_PSU_TYPE:
settings.psu_type =
params->dev_params[p];
break;
case SKY_HW2_DETECT_MODE:
settings.detect_mode =
params->dev_params[p];
break;
case SKY_HW2_PSU_FIXED_VOLTAGE_MV:
settings.psu_fixed_voltage_mV =
params->dev_params[p];
break;
case SKY_HW2_PSU_FIXED_CURRENT_MA:
settings.psu_fixed_current_mA =
params->dev_params[p];
break;
case SKY_HW2_NR_BAD_HEARTBEATS:
settings.nr_bad_heartbeats =
params->dev_params[p];
break;
case SKY_HW2_ERROR_INDICATION_TIMEOUT_SECS:
settings.error_indication_timeout_secs =
params->dev_params[p];
break;
case SKY_HW2_MIN_SENSE_CURRENT_MA:
settings.min_sense_current_mA =
params->dev_params[p];
break;
case SKY_HW2_REPEAT_CHARGE_AFTER_MINS:
settings.repeat_charge_after_mins =
params->dev_params[p];
break;
case SKY_HW2_SENSE_VOLTAGE_CALIB_POINT1_MV:
uint32_to_calib_point(params->dev_params[p],
&settings.sense_calib.voltage_p1_mV.set,
&settings.sense_calib.voltage_p1_mV.read);
break;
case SKY_HW2_SENSE_VOLTAGE_CALIB_POINT2_MV:
uint32_to_calib_point(params->dev_params[p],
&settings.sense_calib.voltage_p2_mV.set,
&settings.sense_calib.voltage_p2_mV.read);
break;
case SKY_HW2_SENSE_CURRENT_CALIB_POINT1_MA:
uint32_to_calib_point(params->dev_params[p],
&settings.sense_calib.current_p1_mA.set,
&settings.sense_calib.current_p1_mA.read);
break;
case SKY_HW2_SENSE_CURRENT_CALIB_POINT2_MA:
uint32_to_calib_point(params->dev_params[p],
&settings.sense_calib.current_p2_mA.set,
&settings.sense_calib.current_p2_mA.read);
break;
case SKY_HW2_PSU_VOLTAGE_CALIB_POINT1_MV:
uint32_to_calib_point(params->dev_params[p],
&settings.psu_calib.voltage_p1_mV.set,
&settings.psu_calib.voltage_p1_mV.read);
break;
case SKY_HW2_PSU_VOLTAGE_CALIB_POINT2_MV:
uint32_to_calib_point(params->dev_params[p],
&settings.psu_calib.voltage_p2_mV.set,
&settings.psu_calib.voltage_p2_mV.read);
break;
case SKY_HW2_PSU_CURRENT_CALIB_POINT1_MA:
uint32_to_calib_point(params->dev_params[p],
&settings.psu_calib.current_p1_mA.set,
&settings.psu_calib.current_p1_mA.read);
break;
case SKY_HW2_PSU_CURRENT_CALIB_POINT2_MA: