From ef343491db1770a3af5010ba007167c348cdbe1a Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Sat, 26 Feb 2011 10:20:39 +0100 Subject: asus-wmi: allow debugfs interface to call arbitrary method Also add some # format flags to debugfs output. Signed-off-by: Corentin Chary Signed-off-by: Matthew Garrett --- drivers/platform/x86/asus-wmi.c | 47 +++++++++++++++++++++++++++++++++++++++-- 1 file changed, 45 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 88596ea0f74e..9095c28340cd 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -112,11 +112,14 @@ struct bios_args { * / - debugfs root directory * dev_id - current dev_id * ctrl_param - current ctrl_param + * method_id - current method_id * devs - call DEVS(dev_id, ctrl_param) and print result * dsts - call DSTS(dev_id) and print result + * call - call method_id(dev_id, ctrl_param) and print result */ struct asus_wmi_debug { struct dentry *root; + u32 method_id; u32 dev_id; u32 ctrl_param; }; @@ -1138,7 +1141,7 @@ static int show_dsts(struct seq_file *m, void *data) if (err < 0) return err; - seq_printf(m, "DSTS(%x) = %x\n", asus->debug.dev_id, retval); + seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval); return 0; } @@ -1155,15 +1158,50 @@ static int show_devs(struct seq_file *m, void *data) if (err < 0) return err; - seq_printf(m, "DEVS(%x, %x) = %x\n", asus->debug.dev_id, + seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id, asus->debug.ctrl_param, retval); return 0; } +static int show_call(struct seq_file *m, void *data) +{ + struct asus_wmi *asus = m->private; + struct bios_args args = { + .arg0 = asus->debug.dev_id, + .arg1 = asus->debug.ctrl_param, + }; + struct acpi_buffer input = { (acpi_size) sizeof(args), &args }; + struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; + union acpi_object *obj; + acpi_status status; + + status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, + 1, asus->debug.method_id, + &input, &output); + + if (ACPI_FAILURE(status)) + return -EIO; + + obj = (union acpi_object *)output.pointer; + if (obj && obj->type == ACPI_TYPE_INTEGER) + seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id, + asus->debug.dev_id, asus->debug.ctrl_param, + (u32) obj->integer.value); + else + seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id, + asus->debug.dev_id, asus->debug.ctrl_param, + obj->type); + + kfree(obj); + + return 0; +} + static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = { {NULL, "devs", show_devs}, {NULL, "dsts", show_dsts}, + {NULL, "call", show_call}, }; static int asus_wmi_debugfs_open(struct inode *inode, struct file *file) @@ -1197,6 +1235,11 @@ static int asus_wmi_debugfs_init(struct asus_wmi *asus) goto error_debugfs; } + dent = debugfs_create_x32("method_id", S_IRUGO | S_IWUSR, + asus->debug.root, &asus->debug.method_id); + if (!dent) + goto error_debugfs; + dent = debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR, asus->debug.root, &asus->debug.dev_id); if (!dent) -- cgit v1.2.3