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Add smart battery functions read ascii info

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Signed-off-by: Rong Chang <rongchang@chromium.org>

BUG=chrome-os-partner:8321
TEST=manual:
   type 'battery' in EC serial console, check following fields:
     Manufacturer
     Device name
     Device chemistry
CQ-DEPEND:I0ad3ad45b796d9ec03d8fbc1d643aa6a92d6343f

Change-Id: Iad4d63c996272568b5a661a6716790ef151b29c5
This commit is contained in:
Rong Chang
2012-03-05 21:58:11 +08:00
parent a81f0cd547
commit 526db244e4
2 changed files with 35 additions and 0 deletions
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13
common/smart_battery.c
View File

@@ -113,6 +113,7 @@ static int command_battery(int argc, char **argv)
int rv;
int d;
int hour, minute;
char text[32];
const char *unit;
uart_puts("Reading battery...\n");
@@ -123,6 +124,18 @@ static int command_battery(int argc, char **argv)
uart_printf(" Temperature: 0x%04x = %d x 0.1K (%d C)\n",
d, d, (d-2731)/10);
uart_printf(" Manufacturer: %s\n",
battery_manufacturer_name(text, sizeof(text)) == EC_SUCCESS ?
text : "(error)");
uart_printf(" Device: %s\n",
battery_device_name(text, sizeof(text)) == EC_SUCCESS ?
text : "(error)");
uart_printf(" Chemistry: %s\n",
battery_device_chemistry(text, sizeof(text)) == EC_SUCCESS ?
text : "(error)");
battery_serial_number(&d);
uart_printf(" Serial number: 0x%04x\n", d);

22
include/smart_battery.h
View File

@@ -225,6 +225,28 @@ static inline int battery_design_voltage(int *voltage)
static inline int battery_serial_number(int *serial)
{ return sb_read(SB_SERIAL_NUMBER, serial); }
/* Read manufacturer name */
static inline int battery_manufacturer_name(char *manufacturer_name,
int buf_size)
{
return i2c_read_string(I2C_PORT_BATTERY, BATTERY_ADDR,
SB_MANUFACTURER_NAME, manufacturer_name, buf_size);
}
/* Read device name */
static inline int battery_device_name(char *device_name, int buf_size)
{
return i2c_read_string(I2C_PORT_BATTERY, BATTERY_ADDR,
SB_DEVICE_NAME, device_name, buf_size);
}
/* Read battery type/chemistry */
static inline int battery_device_chemistry(char *device_chemistry, int buf_size)
{
return i2c_read_string(I2C_PORT_BATTERY, BATTERY_ADDR,
SB_DEVICE_CHEMISTRY, device_chemistry, buf_size);
}
/* Read battery discharging current
* unit: mA
* negative value: charging