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FMC ADC 100M 14b 4cha
Commit dc407374 authored by Federico Vaga's avatar Federico Vaga
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fa-zio-drv.c: add termination support 

Signed-off-by: 's avatarFederico Vaga <federico.vaga@gmail.com>
parent 26019af0
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Showing with 33 additions and 4 deletions
kernel/fa-zio-drv.c
View file @ dc407374
......@@ -68,25 +68,29 @@ const struct zio_field_desc zfad_regs[] = {
/* Sample counter */
[ZFAT_CNT] = {FA_ADC_MEM_OFF + 0x28, 0xFFFFFFFF, 0},
/* Channel 1 */
[ZFA_CH1_CTL_RANGE] = {FA_ADC_MEM_OFF + 0x2C, 0x007F, 0},
[ZFA_CH1_CTL_RANGE] = {FA_ADC_MEM_OFF + 0x2C, 0x0073, 0},
[ZFA_CH1_STA] = {FA_ADC_MEM_OFF + 0x30, 0xFFFF, 0},
[ZFA_CH1_GAIN] = {FA_ADC_MEM_OFF + 0x34, 0xFFFF, 0},
[ZFA_CH1_OFFSET] = {FA_ADC_MEM_OFF + 0x38, 0xFFFF, 0},
[ZFA_CH1_CTL_TERM] = {FA_ADC_MEM_OFF + 0x2C, 0x0001, 3},
/* Channel 2 */
[ZFA_CH2_CTL_RANGE] = {FA_ADC_MEM_OFF + 0x3C, 0x007F, 0},
[ZFA_CH2_CTL_RANGE] = {FA_ADC_MEM_OFF + 0x3C, 0x0073, 0},
[ZFA_CH2_STA] = {FA_ADC_MEM_OFF + 0x40, 0xFFFF, 0},
[ZFA_CH2_GAIN] = {FA_ADC_MEM_OFF + 0x44, 0xFFFF, 0},
[ZFA_CH2_OFFSET] = {FA_ADC_MEM_OFF + 0x48, 0xFFFF, 0},
[ZFA_CH2_CTL_TERM] = {FA_ADC_MEM_OFF + 0x3C, 0x0001, 3},
/* Channel 3 */
[ZFA_CH3_CTL_RANGE] = {FA_ADC_MEM_OFF + 0x4C, 0x007F, 0},
[ZFA_CH3_CTL_RANGE] = {FA_ADC_MEM_OFF + 0x4C, 0x0073, 0},
[ZFA_CH3_STA] = {FA_ADC_MEM_OFF + 0x50, 0xFFFF, 0},
[ZFA_CH3_GAIN] = {FA_ADC_MEM_OFF + 0x54, 0xFFFF, 0},
[ZFA_CH3_OFFSET] = {FA_ADC_MEM_OFF + 0x58, 0xFFFF, 0},
[ZFA_CH3_CTL_TERM] = {FA_ADC_MEM_OFF + 0x4C, 0x0001, 3},
/* Channel 4 */
[ZFA_CH4_CTL_RANGE] = {FA_ADC_MEM_OFF + 0x5C, 0x007F, 0},
[ZFA_CH4_CTL_RANGE] = {FA_ADC_MEM_OFF + 0x5C, 0x0073, 0},
[ZFA_CH4_STA] = {FA_ADC_MEM_OFF + 0x60, 0xFFFF, 0},
[ZFA_CH4_GAIN] = {FA_ADC_MEM_OFF + 0x64, 0xFFFF, 0},
[ZFA_CH4_OFFSET] = {FA_ADC_MEM_OFF + 0x68, 0xFFFF, 0},
[ZFA_CH4_CTL_TERM] = {FA_ADC_MEM_OFF + 0x5C, 0x0001, 3},
/* DMA */
[ZFA_DMA_CTL_SWP] = {FA_DMA_MEM_OFF + 0x00, 0x0003, 2},
[ZFA_DMA_CTL_ABORT] = {FA_DMA_MEM_OFF + 0x00, 0x0001, 1},
......@@ -198,6 +202,11 @@ static struct zio_attribute zfad_cset_ext_zattr[] = {
ZIO_ATTR_EXT("ch1-vref", ZIO_RW_PERM, ZFA_CH2_CTL_RANGE, 0),
ZIO_ATTR_EXT("ch2-vref", ZIO_RW_PERM, ZFA_CH3_CTL_RANGE, 0),
ZIO_ATTR_EXT("ch3-vref", ZIO_RW_PERM, ZFA_CH4_CTL_RANGE, 0),
ZIO_ATTR_EXT("ch0-50ohm-term", ZIO_RW_PERM, ZFA_CH1_CTL_TERM, 0),
ZIO_ATTR_EXT("ch1-50ohm-term", ZIO_RW_PERM, ZFA_CH2_CTL_TERM, 0),
ZIO_ATTR_EXT("ch2-50ohm-term", ZIO_RW_PERM, ZFA_CH3_CTL_TERM, 0),
ZIO_ATTR_EXT("ch3-50ohm-term", ZIO_RW_PERM, ZFA_CH4_CTL_TERM, 0),
};
/* FIXME Unused until TLV control will be available */
......@@ -215,6 +224,7 @@ static ZIO_ATTR_DEFINE_STD(ZIO_DEV, zfad_chan_std_zattr) = {
};
static struct zio_attribute zfad_chan_ext_zattr[] = {
/*ZIO_ATTR(zdev, "50ohm-termination", ZIO_RW_PERM, ZFA_CHx_CTL_TERM, 0x11),*/
ZIO_PARAM_EXT("current-value", ZIO_RO_PERM, ZFA_CHx_STA, 0),
};
......@@ -452,6 +462,19 @@ static int zfad_conf_set(struct device *dev, struct zio_attribute *zattr,
}
break;
/* FIXME temporary until TLV control */
case ZFA_CH1_CTL_TERM:
case ZFA_CH2_CTL_TERM:
case ZFA_CH3_CTL_TERM:
case ZFA_CH4_CTL_TERM:
case ZFA_CHx_CTL_TERM:
if (usr_val != 0 && usr_val != 1) {
dev_err(dev, "50 Ohm termination can be activated (1) "
"or deactivated (0)\n");
return -EINVAL;
}
break;
/* FIXME temporary until TLV control */
case ZFA_CH1_CTL_RANGE:
i--;
case ZFA_CH2_CTL_RANGE:
......@@ -505,6 +528,7 @@ static int zfad_info_get(struct device *dev, struct zio_attribute *zattr,
*usr_val = fa_read_temp(fa, 0);
*usr_val = ((*usr_val) / 16) + (((*usr_val) & 0xf) * 1000 / 16);
return 0;
case ZFA_CHx_CTL_TERM:
case ZFA_CHx_CTL_RANGE:
case ZFA_CHx_STA:
reg_index = zfad_get_chx_index(zattr->id, to_zio_chan(dev));
......
kernel/fmc-adc.h
View file @ dc407374
......@@ -173,26 +173,31 @@ enum zfadc_dregs_enum {
ZFA_CH1_STA,
ZFA_CH1_GAIN,
ZFA_CH1_OFFSET,
ZFA_CH1_CTL_TERM,
/* Channel 2 */
ZFA_CH2_CTL_RANGE,
ZFA_CH2_STA,
ZFA_CH2_GAIN,
ZFA_CH2_OFFSET,
ZFA_CH2_CTL_TERM,
/* Channel 3 */
ZFA_CH3_CTL_RANGE,
ZFA_CH3_STA,
ZFA_CH3_GAIN,
ZFA_CH3_OFFSET,
ZFA_CH3_CTL_TERM,
/* Channel 4 */
ZFA_CH4_CTL_RANGE,
ZFA_CH4_STA,
ZFA_CH4_GAIN,
ZFA_CH4_OFFSET,
ZFA_CH4_CTL_TERM,
/* Other*/
ZFA_CHx_CTL_RANGE,
ZFA_CHx_STA,
ZFA_CHx_GAIN,
ZFA_CHx_OFFSET,
ZFA_CHx_CTL_TERM,
/* DMA */
ZFA_DMA_CTL_SWP,
ZFA_DMA_CTL_ABORT,
......
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