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Elphel
linux-elphel
Commits
a31b83fc
Commit
a31b83fc
authored
May 04, 2016
by
Oleg Dzhimiev
Browse files
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Plain Diff
PCA9571 controlling
parent
1809d055
Changes
1
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1 changed file
with
62 additions
and
13 deletions
+62
-13
elphel393-pwr.c
src/drivers/elphel/elphel393-pwr.c
+62
-13
No files found.
src/drivers/elphel/elphel393-pwr.c
View file @
a31b83fc
...
...
@@ -39,10 +39,10 @@
#define SYSFS_WRITEONLY 0222
#define GPIO_CHIP1_ADDR 0x20
#define GPIO_CHIP2_ADDR 0x21
#define GPIO_CHIP1_ADDR
0x20
#define GPIO_CHIP2_ADDR
0x21
#define GPIO_10389_U4_ADDR 0x25
#define LTC3589_ADDR 0x34
#define LTC3589_ADDR
0x34
/* TODO: set resistors in device tree to accommodate different revisions ( elphel393_pwr,vp15_r1 = <357000>)*/
#define VP15_R1 357000
...
...
@@ -73,7 +73,7 @@ struct pwr_gpio_t {
struct
elphel393_pwr_data_t
{
int
chip_i2c_addr
[
4
];
struct
device
*
ltc3489_dev
;
struct
pwr_gpio_t
pwr_gpio
[
16
];
struct
pwr_gpio_t
pwr_gpio
[
24
];
int
simulate
;
/* do not perform actual i2c writes */
struct
mutex
lock
;
int
pgoot_timeout
;
...
...
@@ -204,7 +204,7 @@ static struct voltage_reg_t voltage_reg[]={
},
};
static
struct
pwr_gpio_t
pwr_gpio
[
16
]
=
{
static
struct
pwr_gpio_t
pwr_gpio
[
24
]
=
{
/* 0x20: */
{
"PWR_MGB1"
,
0
,
0
,
0
},
/* 1.8V margining magnitude (0 - 5%, 1 - 10%, float - 15%) */
{
"PWR_MG1"
,
1
,
0
,
0
},
/* 1.8V margining enable 0 - negative margining, 1 - positive margining, float - no margining */
...
...
@@ -262,9 +262,12 @@ static ssize_t pgood_show(struct device *dev, struct device_attribute *attr, cha
static
ssize_t
pbad_show
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
);
static
ssize_t
enable_por_show
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
);
static
ssize_t
enable_por_store
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
const
char
*
buf
,
size_t
count
);
static
ssize_t
gpio_10389_get
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
);
static
ssize_t
gpio_10389_set
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
,
size_t
count
);
static
ssize_t
gpio_poweroff
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
,
size_t
count
);
static
int
por_ctrl
(
struct
device
*
dev
,
int
disable_por
);
static
int
gpio_shutdown
(
struct
device
*
dev
);
static
int
por_ctrl
(
struct
device
*
dev
,
int
disable_por
);
static
int
get_and_disable_por
(
struct
device
*
dev
,
int
chn_bits
,
int
*
old_dis_por
);
static
int
reenable_por
(
struct
device
*
dev
);
static
int
wait_all_pgood
(
struct
device
*
dev
);
...
...
@@ -312,8 +315,8 @@ static DEVICE_ATTR(channels_dis, SYSFS_PERMISSIONS, channels
static
DEVICE_ATTR
(
power_good
,
SYSFS_PERMISSIONS
&
SYSFS_READONLY
,
pgood_show
,
NULL
);
static
DEVICE_ATTR
(
power_bad
,
SYSFS_PERMISSIONS
&
SYSFS_READONLY
,
pbad_show
,
NULL
);
static
DEVICE_ATTR
(
enable_por
,
SYSFS_PERMISSIONS
,
enable_por_show
,
enable_por_store
);
static
DEVICE_ATTR
(
power_off
,
SYSFS_PERMISSIONS
,
NULL
,
gpio_
shutdown
);
static
DEVICE_ATTR
(
power_off
,
SYSFS_PERMISSIONS
,
NULL
,
gpio_
poweroff
);
static
DEVICE_ATTR
(
gpio_10389
,
SYSFS_PERMISSIONS
,
gpio_10389_get
,
gpio_10389_set
);
static
struct
attribute
*
root_dev_attrs
[]
=
{
&
dev_attr_simulate
.
attr
,
...
...
@@ -325,6 +328,7 @@ static struct attribute *root_dev_attrs[] = {
&
dev_attr_power_bad
.
attr
,
&
dev_attr_enable_por
.
attr
,
&
dev_attr_power_off
.
attr
,
&
dev_attr_gpio_10389
.
attr
,
NULL
};
static
const
struct
attribute_group
dev_attr_root_group
=
{
...
...
@@ -589,6 +593,54 @@ static ssize_t enable_por_store(struct device *dev, struct device_attribute *att
return
count
;
}
int
gpio_10389_ctrl
(
struct
device
*
dev
,
int
value
){
int
i
,
res
;
int
val
=
0
;
//lock here
for
(
i
=
16
;
i
<
20
;
i
++
){
if
((
value
>>
(
i
-
8
))
&
0x1
){
val
=
(
value
>>
(
i
-
16
))
&
0x1
;
res
=
gpio_conf_by_index
(
dev
,
i
,
1
,
~
val
);
if
(
res
<
0
)
return
res
;
res
=
gpio_conf_by_index
(
dev
,
i
,
1
,
val
);
if
(
res
<
0
)
return
res
;
}
}
//unlock somewhere here
return
0
;
}
static
ssize_t
gpio_10389_set
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
,
size_t
count
)
{
int
result
;
int
value
;
sscanf
(
buf
,
"%x"
,
&
value
);
result
=
gpio_10389_ctrl
(
dev
,
value
);
if
(
result
<
0
)
return
result
;
return
count
;
}
static
ssize_t
gpio_10389_get
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
)
{
int
i
;
unsigned
int
res
=
0
;
struct
elphel393_pwr_data_t
*
clientdata
=
platform_get_drvdata
(
to_platform_device
(
dev
));
// just 4 of them
for
(
i
=
16
;
i
<
20
;
i
++
){
if
(
pwr_gpio
[
i
].
label
){
res
+=
((
clientdata
->
pwr_gpio
[
i
].
out_val
)
?
1
:
0
)
<<
(
i
-
16
);
}
}
return
sprintf
(
buf
,
"%02x
\n
"
,
res
);
}
static
ssize_t
gpio_poweroff
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
,
size_t
count
)
{
int
rc
=
gpio_shutdown
(
dev
);
if
(
rc
<
0
)
return
rc
;
return
count
;
}
int
gpio_shutdown
(
struct
device
*
dev
)
{
int
gpio_shutdown_index
=
get_gpio_index_by_name
(
"NSHUTDOWN"
);
...
...
@@ -1157,11 +1209,8 @@ static int elphel393_pwr_probe(struct platform_device *pdev)
for
(
i
=
0
;
i
<
ARRAY_SIZE
(
pwr_gpio
);
i
++
)
if
(
pwr_gpio
[
i
].
label
){
clientdata
->
pwr_gpio
[
i
].
label
=
pwr_gpio
[
i
].
label
;
clientdata
->
pwr_gpio
[
i
].
pin
=
base
[
i
>>
3
]
+
(
i
&
7
);
if
(
i
<
16
)
{
clientdata
->
pwr_gpio
[
i
].
dir
=
0
;
/* input */
}
else
{
clientdata
->
pwr_gpio
[
i
].
dir
=
1
;
/* output */
}
if
(
i
<
16
)
clientdata
->
pwr_gpio
[
i
].
dir
=
0
;
/* input */
else
clientdata
->
pwr_gpio
[
i
].
dir
=
1
;
/* output */
clientdata
->
pwr_gpio
[
i
].
out_val
=
0
;
rc
=
gpio_request
(
clientdata
->
pwr_gpio
[
i
].
pin
,
clientdata
->
pwr_gpio
[
i
].
label
);
if
(
rc
<
0
){
...
...
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