/
atc260x-auxadc.c
executable file
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atc260x-auxadc.c
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/* UTF-8 encoded. */
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/err.h>
#include <linux/delay.h>
#include <linux/of.h>
#include <linux/mfd/core.h>
#include <linux/mfd/atc260x/atc260x.h>
#include "atc260x-core.h"
/* 为了兼容N颗IC, 这里使用了比较繁琐的数据结构. */
#define ATC260x_AUXADC_MAX_CHNL 20
struct atc260x_auxadc_chn_hwinfo;
typedef int (*atc260x_auxadc_getraw_func_t)(uint channel, const struct atc260x_auxadc_chn_hwinfo *ch_info, struct atc260x_dev *atc260x);
typedef int (*atc260x_auxadc_translate_func_t)(uint raw_val, const struct atc260x_auxadc_chn_hwinfo *ch_info, struct atc260x_dev *atc260x);
struct atc260x_auxadc_chn_hwinfo {
u16 dat_reg_addr;
u8 dat_bit_offs;
u8 dat_bit_cnt;
/* get raw value function, if the above setting is not useful. */
atc260x_auxadc_getraw_func_t getraw_func;
/* translate function, for complex transformation */
atc260x_auxadc_translate_func_t tran_func;
/* simple linear transformation, fall-back method. */
/* y = ax + b, a=tr_multiplier/(1<<tr_r_shift), b=tr_offset */
s32 tr_offset;
s32 tr_multiplier;
u8 tr_r_shift;
};
struct atc260x_auxadc_hwinfo {
uint channels;
const char *chn_names[ATC260x_AUXADC_MAX_CHNL];
const char *chn_unit_names[ATC260x_AUXADC_MAX_CHNL]; /* 度量单位. */
const struct atc260x_auxadc_chn_hwinfo *chn_hwinfos[ATC260x_AUXADC_MAX_CHNL];
};
/* for atc2603a ------------------------------------------------------------- */
/* no postfix means rev.D */
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603a_chn_hwinfos_batv = {
.dat_reg_addr = ATC2603A_PMU_BATVADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 375, /* raw * 2.9296875mv * 2 */
.tr_r_shift = 6,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603a_chn_hwinfos_bati = {
.dat_reg_addr = ATC2603A_PMU_BATIADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1500, /* raw * 1500 / 1024 */
.tr_r_shift = 10,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603a_chn_hwinfos_vbusv = {
.dat_reg_addr = ATC2603A_PMU_VBUSVADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1875, /* raw * 2.9296875mv * 2.5 */
.tr_r_shift = 8,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603a_chn_hwinfos_vbusi = {
.dat_reg_addr = ATC2603A_PMU_VBUSIADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1500, /* raw * 1500 / 1024 */
.tr_r_shift = 10,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603a_chn_hwinfos_syspwrv = {
.dat_reg_addr = ATC2603A_PMU_SYSPWRADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1875, /* raw * 2.9296875mv * 2.5 */
.tr_r_shift = 8,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603a_chn_hwinfos_wallv = {
.dat_reg_addr = ATC2603A_PMU_WALLVADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1875, /* raw * 2.9296875mv * 2.5 */
.tr_r_shift = 8,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603a_chn_hwinfos_walli = {
.dat_reg_addr = ATC2603A_PMU_WALLIADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1500, /* raw * 1500 / 1024 */
.tr_r_shift = 10,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603a_chn_hwinfos_chgi = {
.dat_reg_addr = ATC2603A_PMU_CHGIADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1500, /* raw * 1500 / 1024 */
.tr_r_shift = 10,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603a_chn_hwinfos_iref = {
.dat_reg_addr = ATC2603A_PMU_IREFADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 375, /* raw * 2.9296875mv */
.tr_r_shift = 7,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603a_chn_hwinfos_remcon = {
.dat_reg_addr = ATC2603A_PMU_REMCONADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1, /* raw value (0~1023) without BUG */
.tr_r_shift = 0,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603a_chn_hwinfos_ictemp = {
.dat_reg_addr = ATC2603A_PMU_ICTEMPADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 399155, /* (raw_val * 194.9) - 14899 - 30000 (mC) */
.tr_r_shift = 11,
.tr_offset = -14899 -30000,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603a_chn_hwinfos_bakbatv = {
.dat_reg_addr = ATC2603A_PMU_BAKBATADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 375, /* raw * 2.9296875mv */
.tr_r_shift = 7,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603a_chn_hwinfos_aux0 = {
.dat_reg_addr = ATC2603A_PMU_AUXADC0,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1, /* raw value (0~1023) without BUG */
.tr_r_shift = 0,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603a_chn_hwinfos_aux1 = {
.dat_reg_addr = ATC2603A_PMU_AUXADC1,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1, /* raw value (0~1023) without BUG */
.tr_r_shift = 0,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603a_chn_hwinfos_aux2 = {
.dat_reg_addr = ATC2603A_PMU_AUXADC2,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1, /* raw value (0~1023) without BUG */
.tr_r_shift = 0,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603a_chn_hwinfos_aux3 = {
.dat_reg_addr = ATC2603A_PMU_AUXADC3,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1, /* raw value (0~1023) without BUG */
.tr_r_shift = 0,
.tr_offset = 0,
};
static const struct atc260x_auxadc_hwinfo sc_atc2603a_auxadc_hwinfo = {
.channels = 16,
.chn_names = {
"BATV", "BATI", "VBUSV", "VBUSI", "SYSPWRV", "WALLV", "WALLI", "CHGI",
"IREF", "REMCON", "ICTEMP", "BAKBATV", "AUX0", "AUX1", "AUX2", "AUX3"
},
.chn_unit_names = {
"mV", "mA", "mV", "mA", "mV", "mV", "mA", "mA",
"mV", "/1024", "mCel", "mV", "/1024", "/1024", "/1024", "/1024"
},
.chn_hwinfos = {
&sc_atc2603a_chn_hwinfos_batv,
&sc_atc2603a_chn_hwinfos_bati,
&sc_atc2603a_chn_hwinfos_vbusv,
&sc_atc2603a_chn_hwinfos_vbusi,
&sc_atc2603a_chn_hwinfos_syspwrv,
&sc_atc2603a_chn_hwinfos_wallv,
&sc_atc2603a_chn_hwinfos_walli,
&sc_atc2603a_chn_hwinfos_chgi,
&sc_atc2603a_chn_hwinfos_iref,
&sc_atc2603a_chn_hwinfos_remcon,
&sc_atc2603a_chn_hwinfos_ictemp,
&sc_atc2603a_chn_hwinfos_bakbatv,
&sc_atc2603a_chn_hwinfos_aux0,
&sc_atc2603a_chn_hwinfos_aux1,
&sc_atc2603a_chn_hwinfos_aux2,
&sc_atc2603a_chn_hwinfos_aux3
}
};
/* for atc2603c ------------------------------------------------------------- */
/* no postfix means rev.A */
/* software fix for gl5307.
*
0. CHGI = ADC_DBG0 * 1546 / I_ref(max)
1. VBUSI = ADC_DBG1 *1509 / I_ref(max)
2. WALLI = ADC_DBG2 * 1527 / I_ref(max)
3. BATI = ADC_DBG3 * 1546 / I_ref(max)
4. REMCON = ADC_DBG4 * 1024 / 2*SVCC(max)
*/
struct atc260x_auxadc_udata_3c {
uint dbg_ref_valid;
uint adc_iref_max; /* for DBG channels */
uint adc_svcc_min; /* for DBG channels */
uint icm_res_10ohm; /* ICM sample resistor is 10mOhm */
};
static int _atc2603c_auxadc_getraw_icm_chn(
uint channel, const struct atc260x_auxadc_chn_hwinfo *ch_info,
struct atc260x_dev *atc260x)
{
uint reg_val;
int ret;
/* the channel is already enabled. */
while (1) {
ret = atc260x_reg_read(atc260x, ATC2603C_PMU_ICMADC);
if (ret < 0) {
return ret;
}
reg_val = ret;
if (reg_val & (1U << 11)) { /* CM_DATAOK ? */
break;
}
udelay(200);
}
return reg_val & ((1U << 11) -1U);
}
static void _atc2603c_auxadc_usertran_prepare_dbg_refs(struct atc260x_dev *atc260x)
{
struct atc260x_auxadc_udata_3c *pud;
uint i, tmp, iref_max, svcc_min;
int ret;
pud = (struct atc260x_auxadc_udata_3c *)(atc260x->auxadc_udata);
if (! pud->dbg_ref_valid) {
/*get max current reference value for later current value adjusting.*/
iref_max = 0;
svcc_min = (typeof(svcc_min)) -1;
for (i = 0; i < 10; i++){
ret = atc260x_auxadc_get_raw(atc260x, 8); /* channel #8, IREF */
if (ret < 0)
goto label_err;
tmp = 0xFFFFU & ret;
if (tmp > iref_max)
iref_max = tmp;
ret = atc260x_auxadc_get_raw(atc260x, 16); /* channel #16, SVCC */
if (ret < 0)
goto label_err;
tmp = 0xFFFFU & ret;
if (tmp < svcc_min)
svcc_min = tmp;
msleep(1);
}
pud->adc_iref_max = iref_max;
pud->adc_svcc_min = svcc_min;
pud->dbg_ref_valid = 1;
}
return;
label_err:
dev_err(atc260x->dev,
"%s() failed to get raw value of ch-8 and ch-17\n", __func__);
}
static int _atc2603c_auxadc_usertran_dbg_i_mode(
uint raw_val, const struct atc260x_auxadc_chn_hwinfo *ch_info, struct atc260x_dev *atc260x)
{
struct atc260x_auxadc_udata_3c *pud;
uint adc_iref_max;
_atc2603c_auxadc_usertran_prepare_dbg_refs(atc260x);
pud = (struct atc260x_auxadc_udata_3c *)(atc260x->auxadc_udata);
adc_iref_max = pud->adc_iref_max;
if (adc_iref_max == 0)
adc_iref_max = 1;
return raw_val * ch_info->tr_multiplier / adc_iref_max;
}
static int _atc2603c_auxadc_usertran_dbg_rem_mode(
uint raw_val, const struct atc260x_auxadc_chn_hwinfo *ch_info, struct atc260x_dev *atc260x)
{
struct atc260x_auxadc_udata_3c *pud;
uint adc_svcc_min;
_atc2603c_auxadc_usertran_prepare_dbg_refs(atc260x);
/* remcon_uv = ADC_DBG4*(1024/2)*SVCCADC(小) , 单位是uV */
/* remcon_ratio = (remcon_uv * 1024) / svcc_uv
* remcon_ratio = (remcon_uv *1024) / (SVCCADC * 2929.6875 * 2 )
* remcon_ratio = ADC_DBG4*512*512 / 2929.6875
* remcon_ratio ~= (ADC_DBG4 * 46912496) >> 19 (SVCCADC??)
*/
pud = (struct atc260x_auxadc_udata_3c *)(atc260x->auxadc_udata);
adc_svcc_min = pud->adc_svcc_min;
if (adc_svcc_min == 0)
adc_svcc_min = 1;
return raw_val * 512U / adc_svcc_min;
}
static int _atc2603c_auxadc_usertran_icm(
uint raw_val, const struct atc260x_auxadc_chn_hwinfo *ch_info, struct atc260x_dev *atc260x)
{
struct atc260x_auxadc_udata_3c *pud;
int tmp;
pud = (struct atc260x_auxadc_udata_3c *)(atc260x->auxadc_udata);
tmp = raw_val & 0x3ffU;
if (pud->icm_res_10ohm == 0) {
tmp = (tmp * 9375U) >> 12; /*tmp = tmp * 2343.75U / 1024U; */
} else {
tmp = (tmp * 9375U) >> 11; /*tmp = tmp * 4687.5U / 1024U; */
}
if (raw_val & 0x400U) {
tmp = -tmp;
/*TODO: "+1step effect" in minus direction. */
}
return tmp;
}
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_chn_hwinfos_batv = {
.dat_reg_addr = ATC2603C_PMU_BATVADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 375, /* raw * 2.9296875mv * 2 */
.tr_r_shift = 6,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_ver_a_chn_hwinfos_bati = {
.dat_reg_addr = ATC2603C_PMU_ADC_DBG3,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1546,
.tran_func = _atc2603c_auxadc_usertran_dbg_i_mode,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_ver_b_chn_hwinfos_bati = {
.dat_reg_addr = ATC2603C_PMU_BATIADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1500,
.tr_r_shift = 10,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_chn_hwinfos_vbusv = {
.dat_reg_addr = ATC2603C_PMU_VBUSVADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1875, /* raw * 2.9296875mv * 2.5 */
.tr_r_shift = 8,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_ver_a_chn_hwinfos_vbusi = {
.dat_reg_addr = ATC2603C_PMU_ADC_DBG1,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1509,
.tran_func = _atc2603c_auxadc_usertran_dbg_i_mode,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_ver_b_chn_hwinfos_vbusi = {
.dat_reg_addr = ATC2603C_PMU_VBUSIADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1500,
.tr_r_shift = 10,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_chn_hwinfos_syspwrv = {
.dat_reg_addr = ATC2603C_PMU_SYSPWRADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1875, /* raw * 2.9296875mv * 2.5 */
.tr_r_shift = 8,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_chn_hwinfos_wallv = {
.dat_reg_addr = ATC2603C_PMU_WALLVADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1875, /* raw * 2.9296875mv * 2.5 */
.tr_r_shift = 8,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_ver_a_chn_hwinfos_walli = {
.dat_reg_addr = ATC2603C_PMU_WALLIADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1500,
.tr_r_shift = 10,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_ver_b_chn_hwinfos_walli = {
.dat_reg_addr = ATC2603C_PMU_ADC_DBG2,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1500,
.tr_r_shift = 10,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_ver_a_chn_hwinfos_chgi = {
.dat_reg_addr = ATC2603C_PMU_ADC_DBG0,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1546,
.tran_func = _atc2603c_auxadc_usertran_dbg_i_mode,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_ver_b_chn_hwinfos_chgi = {
.dat_reg_addr = ATC2603C_PMU_CHGIADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 2000,
.tr_r_shift = 10,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_chn_hwinfos_iref = {
.dat_reg_addr = ATC2603C_PMU_IREFADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 375, /* raw * 2.9296875mv */
.tr_r_shift = 7,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_chn_hwinfos_remcon = {
.dat_reg_addr = ATC2603C_PMU_ADC_DBG4,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tran_func = _atc2603c_auxadc_usertran_dbg_rem_mode, /* output raw value without BUG */
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_chn_hwinfos_ictemp = {
.dat_reg_addr = ATC2603C_PMU_ICTEMPADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 399155, /* (raw_val * 194.9) - 14899 - 30000 (mC) */
.tr_r_shift = 11,
.tr_offset = -14899 -30000,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_chn_hwinfos_bakbatv = {
.dat_reg_addr = ATC2603C_PMU_BAKBATADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 375, /* raw * 2.9296875mv */
.tr_r_shift = 7,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_chn_hwinfos_aux0 = {
.dat_reg_addr = ATC2603C_PMU_AUXADC0,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1, /* raw value (0~1023) without BUG */
.tr_r_shift = 0,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_chn_hwinfos_aux1 = {
.dat_reg_addr = ATC2603C_PMU_AUXADC1,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1, /* raw value (0~1023) without BUG */
.tr_r_shift = 0,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_chn_hwinfos_aux2 = {
.dat_reg_addr = ATC2603C_PMU_AUXADC2,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 1, /* raw value (0~1023) without BUG */
.tr_r_shift = 0,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_chn_hwinfos_icm = {
.dat_reg_addr = ATC2603C_PMU_ICMADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 11,
.getraw_func = _atc2603c_auxadc_getraw_icm_chn,
.tran_func = _atc2603c_auxadc_usertran_icm,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2603c_chn_hwinfos_svccv = {
.dat_reg_addr = ATC2603C_PMU_SVCCADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 10,
.tr_multiplier = 375, /* raw * 2.9296875mv * 2 */
.tr_r_shift = 6,
.tr_offset = 0,
};
static const struct atc260x_auxadc_hwinfo sc_atc2603c_ver_a_auxadc_hwinfo = {
.channels = 17,
.chn_names = {
"BATV", "BATI", "VBUSV", "VBUSI", "SYSPWRV", "WALLV", "WALLI", "CHGI",
"IREF", "REMCON", "ICTEMP", "BAKBATV", "AUX0", "AUX1", "AUX2", "ICM",
"SVCC"
},
.chn_unit_names = {
"mV", "mA", "mV", "mA", "mV", "mV", "mA", "mA",
"mV", "/1024", "mCel", "/1024", "/1024", "/1024", "mV", "mA",
"mV"
},
.chn_hwinfos = {
&sc_atc2603c_chn_hwinfos_batv,
&sc_atc2603c_ver_a_chn_hwinfos_bati,
&sc_atc2603c_chn_hwinfos_vbusv,
&sc_atc2603c_ver_a_chn_hwinfos_vbusi,
&sc_atc2603c_chn_hwinfos_syspwrv,
&sc_atc2603c_chn_hwinfos_wallv,
&sc_atc2603c_ver_a_chn_hwinfos_walli,
&sc_atc2603c_ver_a_chn_hwinfos_chgi,
&sc_atc2603c_chn_hwinfos_iref,
&sc_atc2603c_chn_hwinfos_remcon,
&sc_atc2603c_chn_hwinfos_ictemp,
&sc_atc2603c_chn_hwinfos_bakbatv,
&sc_atc2603c_chn_hwinfos_aux0,
&sc_atc2603c_chn_hwinfos_aux1,
&sc_atc2603c_chn_hwinfos_aux2,
&sc_atc2603c_chn_hwinfos_icm,
&sc_atc2603c_chn_hwinfos_svccv
}
};
static const struct atc260x_auxadc_hwinfo sc_atc2603c_ver_b_auxadc_hwinfo = {
.channels = 17,
.chn_names = {
"BATV", "BATI", "VBUSV", "VBUSI", "SYSPWRV", "WALLV", "WALLI", "CHGI",
"IREF", "REMCON", "ICTEMP", "BAKBATV", "AUX0", "AUX1", "AUX2", "ICM",
"SVCC"
},
.chn_unit_names = {
"mV", "mA", "mV", "mA", "mV", "mV", "mA", "mA",
"mV", "/1024", "mCel", "/1024", "/1024", "/1024", "mV", "mA",
"mV"
},
.chn_hwinfos = {
&sc_atc2603c_chn_hwinfos_batv,
&sc_atc2603c_ver_b_chn_hwinfos_bati,
&sc_atc2603c_chn_hwinfos_vbusv,
&sc_atc2603c_ver_b_chn_hwinfos_vbusi,
&sc_atc2603c_chn_hwinfos_syspwrv,
&sc_atc2603c_chn_hwinfos_wallv,
&sc_atc2603c_ver_b_chn_hwinfos_walli,
&sc_atc2603c_ver_b_chn_hwinfos_chgi,
&sc_atc2603c_chn_hwinfos_iref,
&sc_atc2603c_chn_hwinfos_remcon,
&sc_atc2603c_chn_hwinfos_ictemp,
&sc_atc2603c_chn_hwinfos_bakbatv,
&sc_atc2603c_chn_hwinfos_aux0,
&sc_atc2603c_chn_hwinfos_aux1,
&sc_atc2603c_chn_hwinfos_aux2,
&sc_atc2603c_chn_hwinfos_icm,
&sc_atc2603c_chn_hwinfos_svccv
}
};
/* for atc2609a ------------------------------------------------------------- */
/* no postfix means rev.D */
struct atc260x_auxadc_udata_9a {
int adc_ictemp_adj;
};
static int _atc2609a_auxadc_usertran_ictemp_adj(
uint raw_val, const struct atc260x_auxadc_chn_hwinfo *ch_info, struct atc260x_dev *atc260x)
{
struct atc260x_auxadc_udata_9a *pud;
pud = (struct atc260x_auxadc_udata_9a *)(atc260x->auxadc_udata);
return 51 * ((int)raw_val + pud->adc_ictemp_adj - 1333);
}
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_iref = {
.dat_reg_addr = ATC2609A_PMU_IREFADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tr_multiplier = 375, /* raw * 0.732421875mv */
.tr_r_shift = 9,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_chgi = {
.dat_reg_addr = ATC2609A_PMU_CHGIADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tr_multiplier = 4000, /* raw * 4000 / 4096 */
.tr_r_shift = 12,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_vbusi = {
.dat_reg_addr = ATC2609A_PMU_VBUSIADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tr_multiplier = 4000, /* raw * 4000 / 4096 */
.tr_r_shift = 12,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_walli = {
.dat_reg_addr = ATC2609A_PMU_WALLIADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tr_multiplier = 4000, /* raw * 4000 / 4096 */
.tr_r_shift = 12,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_bati = {
.dat_reg_addr = ATC2609A_PMU_BATIADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tr_multiplier = 4000, /* raw * 4000 / 4096 */
.tr_r_shift = 12,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_remcon = {
.dat_reg_addr = ATC2609A_PMU_REMCONADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tr_multiplier = 1, /* raw value (0~4095) without BUG */
.tr_r_shift = 0,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_ictemp = {
.dat_reg_addr = ATC2609A_PMU_ICTEMPADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tran_func = _atc2609a_auxadc_usertran_ictemp_adj,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_svccv = {
.dat_reg_addr = ATC2609A_PMU_SVCCADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tr_multiplier = 375, /* raw * 0.732421875mv * 2 */
.tr_r_shift = 8,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_bakbatv = {
.dat_reg_addr = ATC2609A_PMU_BAKBATADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tr_multiplier = 375, /* raw * 0.732421875mv * 2 */
.tr_r_shift = 8,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_syspwrv = {
.dat_reg_addr = ATC2609A_PMU_SYSPWRADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tr_multiplier = 1875, /* raw * 0.732421875mv * 2.5 */
.tr_r_shift = 10,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_wallv = {
.dat_reg_addr = ATC2609A_PMU_WALLVADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tr_multiplier = 1875, /* raw * 0.732421875mv * 2.5 */
.tr_r_shift = 10,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_vbusv = {
.dat_reg_addr = ATC2609A_PMU_VBUSVADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tr_multiplier = 1875, /* raw * 0.732421875mv * 2.5 */
.tr_r_shift = 10,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_aux3 = {
.dat_reg_addr = ATC2609A_PMU_AUXADC3,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tr_multiplier = 1, /* raw value (0~4095) without BUG */
.tr_r_shift = 0,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_aux2 = {
.dat_reg_addr = ATC2609A_PMU_AUXADC2,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tr_multiplier = 1, /* raw value (0~4095) without BUG */
.tr_r_shift = 0,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_aux1 = {
.dat_reg_addr = ATC2609A_PMU_AUXADC1,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tr_multiplier = 1, /* raw value (0~4095) without BUG */
.tr_r_shift = 0,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_aux0 = {
.dat_reg_addr = ATC2609A_PMU_AUXADC0,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tr_multiplier = 1, /* raw value (0~4095) without BUG */
.tr_r_shift = 0,
.tr_offset = 0,
};
static const struct atc260x_auxadc_chn_hwinfo sc_atc2609a_chn_hwinfos_batv = {
.dat_reg_addr = ATC2609A_PMU_BATVADC,
.dat_bit_offs = 0,
.dat_bit_cnt = 12,
.tr_multiplier = 375, /* raw * 0.732421875mv * 2 */
.tr_r_shift = 8,
.tr_offset = 0,
};
static const struct atc260x_auxadc_hwinfo sc_atc2609a_auxadc_hwinfo = {
.channels = 17,
.chn_names = {
"IREF", "CHGI", "VBUSI", "WALLI", "BATI", "REMCON", "ICTEMP", "SVCC",
"BAKBATV", "SYSPWRV", "WALLV", "VBUSV", "AUX3", "AUX2", "AUX1", "AUX0",
"BATV"
},
.chn_unit_names = {
"mV", "mA", "mA", "mA", "mA", "/4096", "mCel", "mV",
"mV", "mV", "mV", "mv", "/4096", "/4096", "/4096", "/4096",
"mV"
},
.chn_hwinfos = {
&sc_atc2609a_chn_hwinfos_iref,
&sc_atc2609a_chn_hwinfos_chgi,
&sc_atc2609a_chn_hwinfos_vbusi,
&sc_atc2609a_chn_hwinfos_walli,
&sc_atc2609a_chn_hwinfos_bati,
&sc_atc2609a_chn_hwinfos_remcon,
&sc_atc2609a_chn_hwinfos_ictemp,
&sc_atc2609a_chn_hwinfos_svccv,
&sc_atc2609a_chn_hwinfos_bakbatv,
&sc_atc2609a_chn_hwinfos_syspwrv,
&sc_atc2609a_chn_hwinfos_wallv,
&sc_atc2609a_chn_hwinfos_vbusv,
&sc_atc2609a_chn_hwinfos_aux3,
&sc_atc2609a_chn_hwinfos_aux2,
&sc_atc2609a_chn_hwinfos_aux1,
&sc_atc2609a_chn_hwinfos_aux0,
&sc_atc2609a_chn_hwinfos_batv,
},
};
int atc260x_auxadc_find_chan(struct atc260x_dev *atc260x, const char *channel_name)
{
uint i;
ATC260X_ASSERT_VALID_DEV(atc260x);
if (!channel_name) {
return -EINVAL;
}
for (i = 0; i < atc260x->auxadc_hwinfo->channels; i++) {
if (0 == strcmp(channel_name, atc260x->auxadc_hwinfo->chn_names[i])) {
return i;
}
}
return -ENXIO;
}
EXPORT_SYMBOL_GPL(atc260x_auxadc_find_chan);
const char *atc260x_auxadc_channel_name(struct atc260x_dev *atc260x, uint channel)
{
ATC260X_ASSERT_VALID_DEV(atc260x);
if (channel >= atc260x->auxadc_hwinfo->channels)
return NULL;
return atc260x->auxadc_hwinfo->chn_names[channel];
}
EXPORT_SYMBOL_GPL(atc260x_auxadc_channel_name);
const char *atc260x_auxadc_channel_unit_name(struct atc260x_dev *atc260x, uint channel)
{
ATC260X_ASSERT_VALID_DEV(atc260x);
if (channel >= atc260x->auxadc_hwinfo->channels)
return NULL;
return atc260x->auxadc_hwinfo->chn_unit_names[channel];
}
EXPORT_SYMBOL_GPL(atc260x_auxadc_channel_unit_name);
static int _atc260x_auxadc_get_raw_inner(struct atc260x_dev *atc260x, uint channel,
const struct atc260x_auxadc_chn_hwinfo *ch_info)
{
uint raw_value;
int ret;
/* get raw value */
if (unlikely(ch_info->getraw_func)) {
/* only this branch needs lock. */
mutex_lock(&atc260x->auxadc_read_mutex);
ret = (ch_info->getraw_func)(channel, ch_info, atc260x);
mutex_unlock(&atc260x->auxadc_read_mutex);
if (ret < 0) {
dev_err(atc260x->dev,
"%s() getraw_func failed, auxadc #%u\n", __func__, channel);
return -EIO;
}
raw_value = ret;
} else {
ret = atc260x_reg_read(atc260x, ch_info->dat_reg_addr);
if (ret < 0) {
dev_err(atc260x->dev,
"%s() can not read auxadc reg 0x%x\n",
__func__, ch_info->dat_reg_addr);
return -EIO;
}
raw_value = ((uint)ret >> ch_info->dat_bit_offs) & ((1U << ch_info->dat_bit_cnt) -1U);
}
return raw_value;
}
int atc260x_auxadc_get_raw(struct atc260x_dev *atc260x, uint channel)
{
const struct atc260x_auxadc_chn_hwinfo *ch_info;
ATC260X_ASSERT_VALID_DEV(atc260x);
if (channel >= atc260x->auxadc_hwinfo->channels) {
dev_err(atc260x->dev,
"%s() no such channel: %u\n", __func__, channel);
return -ENXIO;
}
ch_info = atc260x->auxadc_hwinfo->chn_hwinfos[channel];
return _atc260x_auxadc_get_raw_inner(atc260x, channel, ch_info);
}
EXPORT_SYMBOL_GPL(atc260x_auxadc_get_raw);
int atc260x_auxadc_get_translated(struct atc260x_dev *atc260x, uint channel, s32 *p_tr_value)
{
const struct atc260x_auxadc_chn_hwinfo *ch_info;
int ret, tr_value;
ATC260X_ASSERT_VALID_DEV(atc260x);
if (channel >= atc260x->auxadc_hwinfo->channels) {
dev_err(atc260x->dev,
"%s() no such channel: %u\n", __func__, channel);
return -EINVAL;
}
ch_info = atc260x->auxadc_hwinfo->chn_hwinfos[channel];
ret = _atc260x_auxadc_get_raw_inner(atc260x, channel, ch_info);
if (ret < 0) {
dev_err(atc260x->dev,
"%s() can not get raw value from auxadc #%u, ret=%d\n",
__func__, channel, ret);
return ret;
}
dev_dbg(atc260x->dev, "%s() channel #%u raw = %d\n", __func__, channel, ret);
if (ch_info->tran_func) {
tr_value = (ch_info->tran_func)(ret, ch_info, atc260x);
dev_dbg(atc260x->dev, "%s() channel #%u call 0x%lx for translate, result=%d\n",
__func__, channel, (ulong)(ch_info->tran_func), tr_value);
} else {
tr_value = (s32)(((s64)ret * ch_info->tr_multiplier) >> ch_info->tr_r_shift) +
ch_info->tr_offset;
dev_dbg(atc260x->dev, "%s() channel #%u linear translate, "
"multiplier=%d r_shift=%u offset=%d result=%d\n",
__func__, channel, ch_info->tr_multiplier, ch_info->tr_r_shift,
ch_info->tr_offset, tr_value);
}
if (p_tr_value) {
*p_tr_value = tr_value;
}
return 0;
}
EXPORT_SYMBOL_GPL(atc260x_auxadc_get_translated);
/* init --------------------------------------------------------------------- */
static int _atc2603a_auxadc_dev_init(struct atc260x_dev *atc260x)
{
atc260x->auxadc_hwinfo = &sc_atc2603a_auxadc_hwinfo;
atc260x->auxadc_udata = NULL;
/* open all channels (+ ~1uA) */
atc260x_reg_write(atc260x, ATC2603A_PMU_AUXADC_CTL0, 0xffffU);
return 0;
}
static void _atc2603a_auxadc_dev_exit(struct atc260x_dev *atc260x)
{
}
static int _atc2603c_auxadc_dev_init(struct atc260x_dev *atc260x)
{
struct atc260x_auxadc_udata_3c *usrdata;
int icm_ohm, ret = 0;
uint dat;
int ic_ver;
ic_ver = atc260x_get_ic_ver(atc260x);
if(ic_ver == 0) {
atc260x->auxadc_hwinfo = &sc_atc2603c_ver_a_auxadc_hwinfo;
}
else{
atc260x->auxadc_hwinfo = &sc_atc2603c_ver_b_auxadc_hwinfo;
}
usrdata = devm_kzalloc(atc260x->dev, sizeof(*usrdata), GFP_KERNEL);
if (!usrdata) {
return -ENOMEM;
}
atc260x->auxadc_udata = usrdata;
/*enable adc data output.*/
ret = atc260x_reg_read(atc260x, ATC2603C_PMU_AUXADC_CTL1);
if (ret < 0){
goto label_io_err;
}
dat = ret & 0xFFFF;
/*version B don't set bit3 0 */
if(ic_ver == 0){
if (dat & (1U << 3)) {
/* disable COMP OFFSET TRIMMING */
atc260x_reg_write(atc260x, ATC2603C_PMU_AUXADC_CTL1, dat & ~(1<<3));
}
}
/* open all channels (+ ~1uA) */
atc260x_reg_write(atc260x, ATC2603C_PMU_AUXADC_CTL0, 0xffffU);
icm_ohm = 20;
ret = of_property_read_u32(atc260x->dev->of_node, "icm_ohm", &icm_ohm);
if (ret){
dev_err(atc260x->dev, "icm_ohm not config, use default value\n");
}
dev_info(atc260x->dev, "auxadc icm_ohm = %u\n", icm_ohm);
usrdata->icm_res_10ohm = (icm_ohm == 10);
/*setup value between CMN and CMP according to the resistor on board.*/
ret = atc260x_reg_setbits(atc260x, ATC2603C_PMU_AUXADC_CTL1,
(1U << 4), (((icm_ohm == 10) ? 1 : 0) << 4));
if (ret) {
goto label_io_err;
}
return 0;
label_io_err:
dev_err(atc260x->dev, "%s() fialed to read/write register\n", __func__);
return -EIO;
}
static void _atc2603c_auxadc_dev_exit(struct atc260x_dev *atc260x)
{
/* no need to do anything. */
}
static int _atc2609a_auxadc_dev_init(struct atc260x_dev *atc260x)
{
struct atc260x_auxadc_udata_9a *usrdata;
uint ictemp_adj;
int ret;
atc260x->auxadc_hwinfo = &sc_atc2609a_auxadc_hwinfo;
usrdata = devm_kzalloc(atc260x->dev, sizeof(*usrdata), GFP_KERNEL);
if (!usrdata) {
return -ENOMEM;
}
atc260x->auxadc_udata = usrdata;
/* open all channels (+ ~1uA) */
atc260x_reg_write(atc260x, ATC2609A_PMU_AUXADC_CTL0, 0xffffU);
/* IC_TEMP ADJ */
/*TODO */
ictemp_adj = 0;
ret = atc260x_reg_write(atc260x, ATC2609A_PMU_ICTEMPADC_ADJ, ictemp_adj);
if (ret) {
dev_err(atc260x->dev, "%s() failed to set ic_temp adjuest value\n", __func__);
}
usrdata->adc_ictemp_adj = ictemp_adj;
return 0;
}
static void _atc2609a_auxadc_dev_exit(struct atc260x_dev *atc260x)
{
}
typedef int (*atc260x_auxadc_init_func_t)(struct atc260x_dev *atc260x);
typedef void (*atc260x_auxadc_exit_func_t)(struct atc260x_dev *atc260x);
static const atc260x_auxadc_init_func_t sc_init_func_tbl[ATC260X_ICTYPE_CNT] = {
[ATC260X_ICTYPE_2603A] = _atc2603a_auxadc_dev_init,