len0rd/rockbox
1
0
Fork 1
mirror of https://github.com/Rockbox/rockbox.git synced 2025-11-09 21:22:39 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

imx233/fuze+: implement power management(battery charger), add powermgmt debug info, add power debug info, move target specific powermgmt code to its own files, remove auto-slow setup which was forgotten for debugging

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31424 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Amaury Pouly 2011-12-24 19:20:12 +00:00
parent a1d3ed2534
commit f7f1f7023f
8 changed files with 432 additions and 40 deletions
Download patch file Download diff file Expand all files Collapse all files

123
firmware/target/arm/imx233/power-imx233.c
View file

@ -26,6 +26,43 @@
#include "system-target.h"
#include "usb-target.h"
struct current_step_bit_t
{
unsigned current;
uint32_t bit;
};
/* in decreasing order */
static struct current_step_bit_t g_charger_current_bits[] =
{
{ 400, HW_POWER_CHARGE__BATTCHRG_I__400mA },
{ 200, HW_POWER_CHARGE__BATTCHRG_I__200mA },
{ 100, HW_POWER_CHARGE__BATTCHRG_I__100mA },
{ 50, HW_POWER_CHARGE__BATTCHRG_I__50mA },
{ 20, HW_POWER_CHARGE__BATTCHRG_I__20mA },
{ 10, HW_POWER_CHARGE__BATTCHRG_I__10mA }
};
/* in decreasing order */
static struct current_step_bit_t g_charger_stop_current_bits[] =
{
{ 100, HW_POWER_CHARGE__STOP_ILIMIT__100mA },
{ 50, HW_POWER_CHARGE__STOP_ILIMIT__50mA },
{ 20, HW_POWER_CHARGE__STOP_ILIMIT__20mA },
{ 10, HW_POWER_CHARGE__STOP_ILIMIT__10mA }
};
/* in decreasing order */
static struct current_step_bit_t g_4p2_charge_limit_bits[] =
{
{ 400, HW_POWER_5VCTRL__CHARGE_4P2_ILIMIT__400mA },
{ 200, HW_POWER_5VCTRL__CHARGE_4P2_ILIMIT__200mA },
{ 100, HW_POWER_5VCTRL__CHARGE_4P2_ILIMIT__100mA },
{ 50, HW_POWER_5VCTRL__CHARGE_4P2_ILIMIT__50mA },
{ 20, HW_POWER_5VCTRL__CHARGE_4P2_ILIMIT__20mA },
{ 10, HW_POWER_5VCTRL__CHARGE_4P2_ILIMIT__10mA }
};
void INT_VDD5V(void)
{
if(HW_POWER_CTRL & HW_POWER_CTRL__VBUSVALID_IRQ)
@ -43,6 +80,12 @@ void INT_VDD5V(void)
void power_init(void)
{
/* setup vbusvalid parameters: set threshold to 4v and power up comparators */
__REG_CLR(HW_POWER_5VCTRL) = HW_POWER_5VCTRL__VBUSVALID_TRSH_BM;
__REG_SET(HW_POWER_5VCTRL) = HW_POWER_5VCTRL__VBUSVALID_TRSH_4V |
HW_POWER_5VCTRL__PWRUP_VBUS_CMPS;
/* enable vbusvalid detection method for the dcdc (improves efficiency) */
__REG_SET(HW_POWER_5VCTRL) = HW_POWER_5VCTRL__VBUSVALID_5VDETECT;
/* clear vbusvalid irq and set correct polarity */
__REG_CLR(HW_POWER_CTRL) = HW_POWER_CTRL__VBUSVALID_IRQ;
if(HW_POWER_STS & HW_POWER_STS__VBUSVALID)
@ -51,6 +94,11 @@ void power_init(void)
__REG_SET(HW_POWER_CTRL) = HW_POWER_CTRL__POLARITY_VBUSVALID;
__REG_SET(HW_POWER_CTRL) = HW_POWER_CTRL__ENIRQ_VBUS_VALID;
imx233_enable_interrupt(INT_SRC_VDD5V, true);
/* setup linear regulator offsets to 25 mV below to prevent contention between
* linear regulators and DCDC */
__FIELD_SET(HW_POWER_VDDDCTRL, LINREG_OFFSET, 2);
__FIELD_SET(HW_POWER_VDDACTRL, LINREG_OFFSET, 2);
__FIELD_SET(HW_POWER_VDDIOCTRL, LINREG_OFFSET, 2);
}
void power_off(void)
@ -64,12 +112,42 @@ void power_off(void)
unsigned int power_input_status(void)
{
return POWER_INPUT_NONE;
return usb_plugged() ? POWER_INPUT_MAIN_CHARGER : POWER_INPUT_NONE;
}
bool charging_state(void)
{
return false;
return HW_POWER_STS & HW_POWER_STS__CHRGSTS;
}
void imx233_power_set_charge_current(unsigned current)
{
__REG_CLR(HW_POWER_CHARGE) = HW_POWER_CHARGE__BATTCHRG_I_BM;
/* find closest current LOWER THAN OR EQUAL TO the expected current */
for(unsigned i = 0; i < ARRAYLEN(g_charger_current_bits); i++)
if(current >= g_charger_current_bits[i].current)
{
current -= g_charger_current_bits[i].current;
__REG_SET(HW_POWER_CHARGE) = g_charger_current_bits[i].bit;
}
}
void imx233_power_set_stop_current(unsigned current)
{
__REG_CLR(HW_POWER_CHARGE) = HW_POWER_CHARGE__STOP_ILIMIT_BM;
/* find closest current GREATHER THAN OR EQUAL TO the expected current */
unsigned sum = 0;
for(unsigned i = 0; i < ARRAYLEN(g_charger_stop_current_bits); i++)
sum += g_charger_stop_current_bits[i].current;
for(unsigned i = 0; i < ARRAYLEN(g_charger_stop_current_bits); i++)
{
sum -= g_charger_stop_current_bits[i].current;
if(current > sum)
{
current -= g_charger_stop_current_bits[i].current;
__REG_SET(HW_POWER_CHARGE) = g_charger_stop_current_bits[i].bit;
}
}
}
struct imx233_power_info_t imx233_power_get_info(unsigned flags)
@ -91,14 +169,22 @@ struct imx233_power_info_t imx233_power_get_info(unsigned flags)
{
s.vddd = HW_POWER_VDDDCTRL__TRG_MIN + HW_POWER_VDDDCTRL__TRG_STEP * __XTRACT(HW_POWER_VDDDCTRL, TRG);
s.vddd_linreg = HW_POWER_VDDDCTRL & HW_POWER_VDDDCTRL__ENABLE_LINREG;
s.vddd_linreg_offset = __XTRACT(HW_POWER_VDDDCTRL, LINREG_OFFSET) == 0 ? 0 :
__XTRACT(HW_POWER_VDDDCTRL, LINREG_OFFSET) == 1 ? 25 : -25;
}
if(flags & POWER_INFO_VDDA)
{
s.vdda = HW_POWER_VDDACTRL__TRG_MIN + HW_POWER_VDDACTRL__TRG_STEP * __XTRACT(HW_POWER_VDDACTRL, TRG);
s.vdda_linreg = HW_POWER_VDDACTRL & HW_POWER_VDDACTRL__ENABLE_LINREG;
s.vdda_linreg_offset = __XTRACT(HW_POWER_VDDACTRL, LINREG_OFFSET) == 0 ? 0 :
__XTRACT(HW_POWER_VDDACTRL, LINREG_OFFSET) == 1 ? 25 : -25;
}
if(flags & POWER_INFO_VDDIO)
{
s.vddio = HW_POWER_VDDIOCTRL__TRG_MIN + HW_POWER_VDDIOCTRL__TRG_STEP * __XTRACT(HW_POWER_VDDIOCTRL, TRG);
s.vddio_linreg_offset = __XTRACT(HW_POWER_VDDIOCTRL, LINREG_OFFSET) == 0 ? 0 :
__XTRACT(HW_POWER_VDDIOCTRL, LINREG_OFFSET) == 1 ? 25 : -25;
}
if(flags & POWER_INFO_VDDMEM)
{
s.vddmem = HW_POWER_VDDMEMCTRL__TRG_MIN + HW_POWER_VDDMEMCTRL__TRG_STEP * __XTRACT(HW_POWER_VDDMEMCTRL, TRG);
@ -109,5 +195,38 @@ struct imx233_power_info_t imx233_power_get_info(unsigned flags)
s.dcdc_sel_pllclk = HW_POWER_MISC & HW_POWER_MISC__SEL_PLLCLK;
s.dcdc_freqsel = dcdc_freqsel[__XTRACT(HW_POWER_MISC, FREQSEL)];
}
if(flags & POWER_INFO_CHARGE)
{
for(unsigned i = 0; i < ARRAYLEN(g_charger_current_bits); i++)
if(HW_POWER_CHARGE & g_charger_current_bits[i].bit)
s.charge_current += g_charger_current_bits[i].current;
for(unsigned i = 0; i < ARRAYLEN(g_charger_stop_current_bits); i++)
if(HW_POWER_CHARGE & g_charger_stop_current_bits[i].bit)
s.stop_current += g_charger_stop_current_bits[i].current;
s.charging = HW_POWER_STS & HW_POWER_STS__CHRGSTS;
s.batt_adj = HW_POWER_BATTMONITOR & HW_POWER_BATTMONITOR__ENBATADJ;
}
if(flags & POWER_INFO_4P2)
{
s._4p2_enable = HW_POWER_DCDC4P2 & HW_POWER_DCDC4P2__ENABLE_4P2;
s._4p2_dcdc = HW_POWER_DCDC4P2 & HW_POWER_DCDC4P2__ENABLE_DCDC;
s._4p2_cmptrip = __XTRACT(HW_POWER_DCDC4P2, CMPTRIP);
s._4p2_dropout = __XTRACT(HW_POWER_DCDC4P2, DROPOUT_CTRL);
}
if(flags & POWER_INFO_5V)
{
s._5v_pwd_charge_4p2 = HW_POWER_5VCTRL & HW_POWER_5VCTRL__PWD_CHARGE_4P2;
s._5v_dcdc_xfer = HW_POWER_5VCTRL & HW_POWER_5VCTRL__DCDC_XFER;
s._5v_enable_dcdc = HW_POWER_5VCTRL & HW_POWER_5VCTRL__ENABLE_DCDC;
for(unsigned i = 0; i < ARRAYLEN(g_4p2_charge_limit_bits); i++)
if(HW_POWER_5VCTRL & g_4p2_charge_limit_bits[i].bit)
s._5v_charge_4p2_limit += g_4p2_charge_limit_bits[i].current;
s._5v_vbusvalid_detect = HW_POWER_5VCTRL & HW_POWER_5VCTRL__VBUSVALID_5VDETECT;
s._5v_vbus_cmps = HW_POWER_5VCTRL & HW_POWER_5VCTRL__PWRUP_VBUS_CMPS;
s._5v_vbusvalid_thr =
__XTRACT(HW_POWER_5VCTRL, VBUSVALID_TRSH) == 0 ?
2900
: 3900 + __XTRACT(HW_POWER_5VCTRL, VBUSVALID_TRSH) * 100;
}
return s;
}