diff options
| -rw-r--r-- | Documentation/ABI/testing/debugfs-ideapad | 19 | ||||
| -rw-r--r-- | drivers/platform/x86/ideapad-laptop.c | 152 |
2 files changed, 171 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/debugfs-ideapad b/Documentation/ABI/testing/debugfs-ideapad new file mode 100644 index 00000000000..7079c0b2103 --- /dev/null +++ b/Documentation/ABI/testing/debugfs-ideapad @@ -0,0 +1,19 @@ +What: /sys/kernel/debug/ideapad/cfg +Date: Sep 2011 +KernelVersion: 3.2 +Contact: Ike Panhc <ike.pan@canonical.com> +Description: + +cfg shows the return value of _CFG method in VPC2004 device. It tells machine +capability and what graphic component within the machine. + + +What: /sys/kernel/debug/ideapad/status +Date: Sep 2011 +KernelVersion: 3.2 +Contact: Ike Panhc <ike.pan@canonical.com> +Description: + +status shows infos we can read and tells its meaning and value. + + diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index 39a72a8aeb8..1c8b5065f34 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -34,6 +34,8 @@ #include <linux/input/sparse-keymap.h> #include <linux/backlight.h> #include <linux/fb.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> #define IDEAPAD_RFKILL_DEV_NUM (3) @@ -71,10 +73,12 @@ struct ideapad_private { struct platform_device *platform_device; struct input_dev *inputdev; struct backlight_device *blightdev; + struct dentry *debug; unsigned long cfg; }; static acpi_handle ideapad_handle; +static struct ideapad_private *ideapad_priv; static bool no_bt_rfkill; module_param(no_bt_rfkill, bool, 0444); MODULE_PARM_DESC(no_bt_rfkill, "No rfkill for bluetooth."); @@ -188,6 +192,146 @@ static int write_ec_cmd(acpi_handle handle, int cmd, unsigned long data) } /* + * debugfs + */ +#define DEBUGFS_EVENT_LEN (4096) +static int debugfs_status_show(struct seq_file *s, void *data) +{ + unsigned long value; + + if (!read_ec_data(ideapad_handle, VPCCMD_R_BL_MAX, &value)) + seq_printf(s, "Backlight max:\t%lu\n", value); + if (!read_ec_data(ideapad_handle, VPCCMD_R_BL, &value)) + seq_printf(s, "Backlight now:\t%lu\n", value); + if (!read_ec_data(ideapad_handle, VPCCMD_R_BL_POWER, &value)) + seq_printf(s, "BL power value:\t%s\n", value ? "On" : "Off"); + seq_printf(s, "=====================\n"); + + if (!read_ec_data(ideapad_handle, VPCCMD_R_RF, &value)) + seq_printf(s, "Radio status:\t%s(%lu)\n", + value ? "On" : "Off", value); + if (!read_ec_data(ideapad_handle, VPCCMD_R_WIFI, &value)) + seq_printf(s, "Wifi status:\t%s(%lu)\n", + value ? "On" : "Off", value); + if (!read_ec_data(ideapad_handle, VPCCMD_R_BT, &value)) + seq_printf(s, "BT status:\t%s(%lu)\n", + value ? "On" : "Off", value); + if (!read_ec_data(ideapad_handle, VPCCMD_R_3G, &value)) + seq_printf(s, "3G status:\t%s(%lu)\n", + value ? "On" : "Off", value); + seq_printf(s, "=====================\n"); + + if (!read_ec_data(ideapad_handle, VPCCMD_R_TOUCHPAD, &value)) + seq_printf(s, "Touchpad status:%s(%lu)\n", + value ? "On" : "Off", value); + if (!read_ec_data(ideapad_handle, VPCCMD_R_CAMERA, &value)) + seq_printf(s, "Camera status:\t%s(%lu)\n", + value ? "On" : "Off", value); + + return 0; +} + +static int debugfs_status_open(struct inode *inode, struct file *file) +{ + return single_open(file, debugfs_status_show, NULL); +} + +static const struct file_operations debugfs_status_fops = { + .owner = THIS_MODULE, + .open = debugfs_status_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int debugfs_cfg_show(struct seq_file *s, void *data) +{ + if (!ideapad_priv) { + seq_printf(s, "cfg: N/A\n"); + } else { + seq_printf(s, "cfg: 0x%.8lX\n\nCapability: ", + ideapad_priv->cfg); + if (test_bit(CFG_BT_BIT, &ideapad_priv->cfg)) + seq_printf(s, "Bluetooth "); + if (test_bit(CFG_3G_BIT, &ideapad_priv->cfg)) + seq_printf(s, "3G "); + if (test_bit(CFG_WIFI_BIT, &ideapad_priv->cfg)) + seq_printf(s, "Wireless "); + if (test_bit(CFG_CAMERA_BIT, &ideapad_priv->cfg)) + seq_printf(s, "Camera "); + seq_printf(s, "\nGraphic: "); + switch ((ideapad_priv->cfg)&0x700) { + case 0x100: + seq_printf(s, "Intel"); + break; + case 0x200: + seq_printf(s, "ATI"); + break; + case 0x300: + seq_printf(s, "Nvidia"); + break; + case 0x400: + seq_printf(s, "Intel and ATI"); + break; + case 0x500: + seq_printf(s, "Intel and Nvidia"); + break; + } + seq_printf(s, "\n"); + } + return 0; +} + +static int debugfs_cfg_open(struct inode *inode, struct file *file) +{ + return single_open(file, debugfs_cfg_show, NULL); +} + +static const struct file_operations debugfs_cfg_fops = { + .owner = THIS_MODULE, + .open = debugfs_cfg_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int __devinit ideapad_debugfs_init(struct ideapad_private *priv) +{ + struct dentry *node; + + priv->debug = debugfs_create_dir("ideapad", NULL); + if (priv->debug == NULL) { + pr_err("failed to create debugfs directory"); + goto errout; + } + + node = debugfs_create_file("cfg", S_IRUGO, priv->debug, NULL, + &debugfs_cfg_fops); + if (!node) { + pr_err("failed to create cfg in debugfs"); + goto errout; + } + + node = debugfs_create_file("status", S_IRUGO, priv->debug, NULL, + &debugfs_status_fops); + if (!node) { + pr_err("failed to create event in debugfs"); + goto errout; + } + + return 0; + +errout: + return -ENOMEM; +} + +static void ideapad_debugfs_exit(struct ideapad_private *priv) +{ + debugfs_remove_recursive(priv->debug); + priv->debug = NULL; +} + +/* * sysfs */ static ssize_t show_ideapad_cam(struct device *dev, @@ -573,6 +717,7 @@ static int __devinit ideapad_acpi_add(struct acpi_device *adevice) if (!priv) return -ENOMEM; dev_set_drvdata(&adevice->dev, priv); + ideapad_priv = priv; ideapad_handle = adevice->handle; priv->cfg = cfg; @@ -580,6 +725,10 @@ static int __devinit ideapad_acpi_add(struct acpi_device *adevice) if (ret) goto platform_failed; + ret = ideapad_debugfs_init(priv); + if (ret) + goto debugfs_failed; + ret = ideapad_input_init(priv); if (ret) goto input_failed; @@ -605,6 +754,8 @@ backlight_failed: ideapad_unregister_rfkill(adevice, i); ideapad_input_exit(priv); input_failed: + ideapad_debugfs_exit(priv); +debugfs_failed: ideapad_platform_exit(priv); platform_failed: kfree(priv); @@ -620,6 +771,7 @@ static int __devexit ideapad_acpi_remove(struct acpi_device *adevice, int type) for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) ideapad_unregister_rfkill(adevice, i); ideapad_input_exit(priv); + ideapad_debugfs_exit(priv); ideapad_platform_exit(priv); dev_set_drvdata(&adevice->dev, NULL); kfree(priv); |