summaryrefslogtreecommitdiff
path: root/drivers/staging/ti-st/st_kim.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/staging/ti-st/st_kim.c')
-rw-r--r--drivers/staging/ti-st/st_kim.c89
1 files changed, 41 insertions, 48 deletions
diff --git a/drivers/staging/ti-st/st_kim.c b/drivers/staging/ti-st/st_kim.c
index 98cbabba3844..d015ad3c4600 100644
--- a/drivers/staging/ti-st/st_kim.c
+++ b/drivers/staging/ti-st/st_kim.c
@@ -55,14 +55,14 @@ static struct platform_driver kim_platform_driver = {
},
};
-#ifndef LEGACY_RFKILL_SUPPORT
static ssize_t show_pid(struct device *dev, struct device_attribute
- *attr, char *buf);
+ *attr, char *buf);
static ssize_t store_pid(struct device *dev, struct device_attribute
- *devattr, char *buf, size_t count);
+ *devattr, char *buf, size_t count);
static ssize_t show_list(struct device *dev, struct device_attribute
- *attr, char *buf);
-
+ *attr, char *buf);
+static ssize_t show_version(struct device *dev, struct device_attribute
+ *attr, char *buf);
/* structures specific for sysfs entries */
static struct kobj_attribute pid_attr =
__ATTR(pid, 0644, (void *)show_pid, (void *)store_pid);
@@ -70,22 +70,25 @@ __ATTR(pid, 0644, (void *)show_pid, (void *)store_pid);
static struct kobj_attribute list_protocols =
__ATTR(protocols, 0444, (void *)show_list, NULL);
+static struct kobj_attribute chip_version =
+__ATTR(version, 0444, (void *)show_version, NULL);
+
static struct attribute *uim_attrs[] = {
&pid_attr.attr,
/* add more debug sysfs entries */
&list_protocols.attr,
+ &chip_version.attr,
NULL,
};
static struct attribute_group uim_attr_grp = {
.attrs = uim_attrs,
};
-#else
+
static int kim_toggle_radio(void*, bool);
static const struct rfkill_ops kim_rfkill_ops = {
.set_block = kim_toggle_radio,
};
-#endif /* LEGACY_RFKILL_SUPPORT */
/* strings to be used for rfkill entries and by
* ST Core to be used for sysfs debug entry
@@ -253,7 +256,8 @@ static long read_local_version(char *bts_scr_name)
}
version =
- MAKEWORD(kim_gdata->resp_buffer[13], kim_gdata->resp_buffer[14]);
+ MAKEWORD(kim_gdata->resp_buffer[13],
+ kim_gdata->resp_buffer[14]);
chip = (version & 0x7C00) >> 10;
min_ver = (version & 0x007F);
maj_ver = (version & 0x0380) >> 7;
@@ -262,6 +266,13 @@ static long read_local_version(char *bts_scr_name)
maj_ver |= 0x0008;
sprintf(bts_scr_name, "TIInit_%d.%d.%d.bts", chip, maj_ver, min_ver);
+
+ /* to be accessed later via sysfs entry */
+ kim_gdata->version.full = version;
+ kim_gdata->version.chip = chip;
+ kim_gdata->version.maj_ver = maj_ver;
+ kim_gdata->version.min_ver = min_ver;
+
pr_info("%s", bts_scr_name);
return ST_SUCCESS;
}
@@ -436,13 +447,11 @@ long st_kim_start(void)
pr_info(" %s", __func__);
do {
-#ifdef LEGACY_RFKILL_SUPPORT
/* TODO: this is only because rfkill sub-system
* doesn't send events to user-space if the state
* isn't changed
*/
rfkill_set_hw_state(kim_gdata->rfkill[ST_BT], 1);
-#endif
/* Configure BT nShutdown to HIGH state */
gpio_set_value(kim_gdata->gpios[ST_BT], GPIO_LOW);
mdelay(5); /* FIXME: a proper toggle */
@@ -450,7 +459,7 @@ long st_kim_start(void)
mdelay(100);
/* re-initialize the completion */
INIT_COMPLETION(kim_gdata->ldisc_installed);
-#ifndef LEGACY_RFKILL_SUPPORT
+#if 0 /* older way of signalling user-space UIM */
/* send signal to UIM */
err = kill_pid(find_get_pid(kim_gdata->uim_pid), SIGUSR2, 0);
if (err != 0) {
@@ -458,10 +467,9 @@ long st_kim_start(void)
err = ST_ERR_FAILURE;
continue;
}
-#else
+#endif
/* unblock and send event to UIM via /dev/rfkill */
rfkill_set_hw_state(kim_gdata->rfkill[ST_BT], 0);
-#endif
/* wait for ldisc to be installed */
err = wait_for_completion_timeout(&kim_gdata->ldisc_installed,
msecs_to_jiffies(LDISC_TIME));
@@ -491,17 +499,16 @@ long st_kim_stop(void)
long err = ST_SUCCESS;
INIT_COMPLETION(kim_gdata->ldisc_installed);
-#ifndef LEGACY_RFKILL_SUPPORT
+#if 0 /* older way of signalling user-space UIM */
/* send signal to UIM */
err = kill_pid(find_get_pid(kim_gdata->uim_pid), SIGUSR2, 1);
if (err != 0) {
pr_err("sending SIGUSR2 to uim failed %ld", err);
return ST_ERR_FAILURE;
}
-#else
+#endif
/* set BT rfkill to be blocked */
err = rfkill_set_hw_state(kim_gdata->rfkill[ST_BT], 1);
-#endif
/* wait for ldisc to be un-installed */
err = wait_for_completion_timeout(&kim_gdata->ldisc_installed,
@@ -522,8 +529,17 @@ long st_kim_stop(void)
/**********************************************************************/
/* functions called from subsystems */
+/* called when sysfs entry is read from */
+
+static ssize_t show_version(struct device *dev, struct device_attribute
+ *attr, char *buf)
+{
+ sprintf(buf, "%04X %d.%d.%d", kim_gdata->version.full,
+ kim_gdata->version.chip, kim_gdata->version.maj_ver,
+ kim_gdata->version.min_ver);
+ return strlen(buf);
+}
-#ifndef LEGACY_RFKILL_SUPPORT
/* called when sysfs entry is written to */
static ssize_t store_pid(struct device *dev, struct device_attribute
*devattr, char *buf, size_t count)
@@ -551,8 +567,6 @@ static ssize_t show_list(struct device *dev, struct device_attribute
return strlen(buf);
}
-#else /* LEGACY_RFKILL_SUPPORT */
-
/* function called from rfkill subsystem, when someone from
* user space would write 0/1 on the sysfs entry
* /sys/class/rfkill/rfkill0,1,3/state
@@ -580,8 +594,6 @@ static int kim_toggle_radio(void *data, bool blocked)
return ST_SUCCESS;
}
-#endif /* LEGACY_RFKILL_SUPPORT */
-
void st_kim_ref(struct st_data_s **core_data)
{
*core_data = kim_gdata->core_data;
@@ -639,30 +651,12 @@ static int kim_probe(struct platform_device *pdev)
return status;
}
}
-#ifndef LEGACY_RFKILL_SUPPORT
- /* pdev to contain BT, FM and GPS enable/N-Shutdown GPIOs
- * execute request_gpio, set output direction
- */
- kim_gdata->kim_kobj = kobject_create_and_add("uim", NULL);
- /* create the sysfs entry for UIM to put in pid */
- if (sysfs_create_group(kim_gdata->kim_kobj, &uim_attr_grp)) {
- pr_err(" sysfs entry creation failed");
- kobject_put(kim_gdata->kim_kobj);
- /* free requested GPIOs and fail probe */
- for (proto = ST_BT; proto < ST_MAX; proto++) {
- if (gpios[proto] != -1)
- gpio_free(gpios[proto]);
- }
- return -1; /* fail insmod */
- }
- pr_info(" sysfs entry created ");
-#endif
/* get reference of pdev for request_firmware
*/
kim_gdata->kim_pdev = pdev;
init_completion(&kim_gdata->kim_rcvd);
init_completion(&kim_gdata->ldisc_installed);
-#ifdef LEGACY_RFKILL_SUPPORT
+
for (proto = 0; (proto < ST_MAX) && (gpios[proto] != -1); proto++) {
/* TODO: should all types be rfkill_type_bt ? */
kim_gdata->rf_protos[proto] = proto;
@@ -685,7 +679,12 @@ static int kim_probe(struct platform_device *pdev)
}
pr_info("rfkill entry created for %ld", gpios[proto]);
}
-#endif
+
+ if (sysfs_create_group(&pdev->dev.kobj, &uim_attr_grp)) {
+ pr_err(" sysfs entry creation failed");
+ return -1;
+ }
+ pr_info(" sysfs entries created ");
return ST_SUCCESS;
}
@@ -701,18 +700,12 @@ static int kim_remove(struct platform_device *pdev)
* nShutdown gpio from the system
*/
gpio_free(gpios[proto]);
-#ifdef LEGACY_RFKILL_SUPPORT
rfkill_unregister(kim_gdata->rfkill[proto]);
rfkill_destroy(kim_gdata->rfkill[proto]);
kim_gdata->rfkill[proto] = NULL;
-#endif
}
pr_info("kim: GPIO Freed");
-#ifndef LEGACY_RFKILL_SUPPORT
- /* delete the sysfs entries */
- sysfs_remove_group(kim_gdata->kim_kobj, &uim_attr_grp);
- kobject_put(kim_gdata->kim_kobj);
-#endif
+ sysfs_remove_group(&pdev->dev.kobj, &uim_attr_grp);
kim_gdata->kim_pdev = NULL;
st_core_exit(kim_gdata->core_data);
return ST_SUCCESS;
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-01 04:28:41 +0000