input: synaptics: Add debugfs entry for dump info
Add a debugfs entry to display information about
controller to the user.
Change-Id: Ib358cad4bb2c81aa0194b41bc5159dffda393eeb
Signed-off-by: Amy Maloche <amaloche@codeaurora.org>
diff --git a/drivers/input/touchscreen/synaptics_fw_update.c b/drivers/input/touchscreen/synaptics_fw_update.c
index 5843445..c01ab0e 100644
--- a/drivers/input/touchscreen/synaptics_fw_update.c
+++ b/drivers/input/touchscreen/synaptics_fw_update.c
@@ -52,6 +52,14 @@
#define BLOCK_NUMBER_OFFSET 0
#define BLOCK_DATA_OFFSET 2
+#define RMI4_INFO_MAX_LEN 200
+
+#define RMI4_STORE_TS_INFO(buf, id, rev, fw_ver) \
+ snprintf(buf, RMI4_INFO_MAX_LEN, \
+ "controller\t= synaptics\n" \
+ "model\t\t= %d rev %d\n" \
+ "fw_ver\t\t= %d\n", id, rev, fw_ver)
+
enum falsh_config_area {
UI_CONFIG_AREA = 0x00,
PERM_CONFIG_AREA = 0x01,
@@ -244,6 +252,7 @@
struct workqueue_struct *fwu_workqueue;
struct delayed_work fwu_work;
char firmware_name[NAME_BUFFER_SIZE];
+ char *ts_info;
};
static struct synaptics_rmi4_fwu_handle *fwu;
@@ -266,6 +275,26 @@
(unsigned int)ptr[0] * 0x1000000;
}
+static void synaptics_rmi4_update_debug_info(void)
+{
+ unsigned char pkg_id[4];
+ unsigned int build_id;
+ struct synaptics_rmi4_device_info *rmi;
+ /* read device package id */
+ fwu->fn_ptr->read(fwu->rmi4_data,
+ fwu->f01_fd.query_base_addr + 17,
+ pkg_id,
+ sizeof(pkg_id));
+ rmi = &(fwu->rmi4_data->rmi4_mod_info);
+
+ build_id = (unsigned int)rmi->build_id[0] +
+ (unsigned int)rmi->build_id[1] * 0x100 +
+ (unsigned int)rmi->build_id[2] * 0x10000;
+
+ RMI4_STORE_TS_INFO(fwu->ts_info, pkg_id[1] << 8 | pkg_id[0],
+ pkg_id[3] << 8 | pkg_id[2], build_id);
+}
+
static void parse_header(struct image_header *header,
const unsigned char *fw_image)
{
@@ -1360,6 +1389,8 @@
retval = fwu_start_reflash();
fwu->rmi4_data->fw_updating = false;
+ synaptics_rmi4_update_debug_info();
+
return retval;
}
EXPORT_SYMBOL(synaptics_fw_updater);
@@ -1659,6 +1690,26 @@
(pkg_id[3] << 8) | pkg_id[2]);
}
+static int synaptics_rmi4_debug_dump_info(struct seq_file *m, void *v)
+{
+ seq_printf(m, "%s\n", fwu->ts_info);
+
+ return 0;
+}
+
+static int debugfs_dump_info_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, synaptics_rmi4_debug_dump_info,
+ inode->i_private);
+}
+
+static const struct file_operations debug_dump_info_fops = {
+ .owner = THIS_MODULE,
+ .open = debugfs_dump_info_open,
+ .read = seq_read,
+ .release = single_release,
+};
+
static void synaptics_rmi4_fwu_attn(struct synaptics_rmi4_data *rmi4_data,
unsigned char intr_mask)
{
@@ -1737,6 +1788,7 @@
int retval;
unsigned char attr_count;
struct pdt_properties pdt_props;
+ struct dentry *temp;
fwu = kzalloc(sizeof(*fwu), GFP_KERNEL);
if (!fwu) {
@@ -1821,6 +1873,25 @@
}
}
+ temp = debugfs_create_file("dump_info", S_IRUSR | S_IWUSR,
+ fwu->rmi4_data->dir, fwu->rmi4_data,
+ &debug_dump_info_fops);
+ if (temp == NULL || IS_ERR(temp)) {
+ dev_err(&rmi4_data->i2c_client->dev,
+ "%s: Failed to create debugfs dump info file\n",
+ __func__);
+ retval = PTR_ERR(temp);
+ goto exit_remove_attrs;
+ }
+
+ fwu->ts_info = kzalloc(RMI4_INFO_MAX_LEN, GFP_KERNEL);
+ if (!fwu->ts_info) {
+ dev_err(&rmi4_data->i2c_client->dev, "Not enough memory\n");
+ goto exit_free_ts_info;
+ }
+
+ synaptics_rmi4_update_debug_info();
+
#ifdef INSIDE_FIRMWARE_UPDATE
fwu->fwu_workqueue = create_singlethread_workqueue("fwu_workqueue");
INIT_DELAYED_WORK(&fwu->fwu_work, synaptics_rmi4_fwu_work);
@@ -1832,7 +1903,8 @@
init_completion(&remove_complete);
return 0;
-
+exit_free_ts_info:
+ debugfs_remove(temp);
exit_remove_attrs:
for (attr_count--; attr_count >= 0; attr_count--) {
sysfs_remove_file(&rmi4_data->input_dev->dev.kobj,