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thinkpad-acpi: convert to seq_file
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Alexey Dobriyan
Len Brown
parent
0d204c34e8
commit
887965e657
1 changed files with 134 additions and 155 deletions
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@ -61,6 +61,7 @@
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#include <linux/nvram.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/sysfs.h>
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#include <linux/backlight.h>
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#include <linux/fb.h>
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@ -261,7 +262,7 @@ struct tp_acpi_drv_struct {
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struct ibm_struct {
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char *name;
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int (*read) (char *);
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int (*read) (struct seq_file *);
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int (*write) (char *);
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void (*exit) (void);
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void (*resume) (void);
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@ -789,36 +790,25 @@ static int __init register_tpacpi_subdriver(struct ibm_struct *ibm)
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****************************************************************************
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****************************************************************************/
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static int dispatch_procfs_read(char *page, char **start, off_t off,
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int count, int *eof, void *data)
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static int dispatch_proc_show(struct seq_file *m, void *v)
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{
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struct ibm_struct *ibm = data;
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int len;
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struct ibm_struct *ibm = m->private;
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if (!ibm || !ibm->read)
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return -EINVAL;
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len = ibm->read(page);
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if (len < 0)
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return len;
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if (len <= off + count)
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*eof = 1;
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*start = page + off;
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len -= off;
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if (len > count)
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len = count;
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if (len < 0)
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len = 0;
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return len;
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return ibm->read(m);
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}
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static int dispatch_procfs_write(struct file *file,
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const char __user *userbuf,
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unsigned long count, void *data)
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static int dispatch_proc_open(struct inode *inode, struct file *file)
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{
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struct ibm_struct *ibm = data;
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return single_open(file, dispatch_proc_show, PDE(inode)->data);
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}
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static ssize_t dispatch_proc_write(struct file *file,
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const char __user *userbuf,
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size_t count, loff_t *pos)
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{
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struct ibm_struct *ibm = PDE(file->f_path.dentry->d_inode)->data;
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char *kernbuf;
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int ret;
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@ -847,6 +837,15 @@ static int dispatch_procfs_write(struct file *file,
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return ret;
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}
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static const struct file_operations dispatch_proc_fops = {
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.owner = THIS_MODULE,
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.open = dispatch_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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.write = dispatch_proc_write,
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};
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static char *next_cmd(char **cmds)
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{
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char *start = *cmds;
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@ -1401,12 +1400,10 @@ static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id,
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}
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/* procfs -------------------------------------------------------------- */
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static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, char *p)
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static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m)
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{
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int len = 0;
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if (id >= TPACPI_RFK_SW_MAX)
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len += sprintf(p + len, "status:\t\tnot supported\n");
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seq_printf(m, "status:\t\tnot supported\n");
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else {
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int status;
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@ -1420,13 +1417,13 @@ static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, char *p)
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return status;
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}
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len += sprintf(p + len, "status:\t\t%s\n",
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seq_printf(m, "status:\t\t%s\n",
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(status == TPACPI_RFK_RADIO_ON) ?
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"enabled" : "disabled");
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len += sprintf(p + len, "commands:\tenable, disable\n");
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seq_printf(m, "commands:\tenable, disable\n");
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}
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return len;
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return 0;
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}
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static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf)
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@ -1904,14 +1901,11 @@ static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm)
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return 0;
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}
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static int thinkpad_acpi_driver_read(char *p)
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static int thinkpad_acpi_driver_read(struct seq_file *m)
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{
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int len = 0;
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len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC);
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len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION);
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return len;
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seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC);
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seq_printf(m, "version:\t%s\n", TPACPI_VERSION);
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return 0;
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}
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static struct ibm_struct thinkpad_acpi_driver_data = {
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@ -3759,14 +3753,13 @@ static void hotkey_resume(void)
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}
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/* procfs -------------------------------------------------------------- */
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static int hotkey_read(char *p)
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static int hotkey_read(struct seq_file *m)
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{
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int res, status;
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int len = 0;
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if (!tp_features.hotkey) {
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len += sprintf(p + len, "status:\t\tnot supported\n");
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return len;
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seq_printf(m, "status:\t\tnot supported\n");
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return 0;
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}
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if (mutex_lock_killable(&hotkey_mutex))
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@ -3778,17 +3771,16 @@ static int hotkey_read(char *p)
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if (res)
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return res;
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len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0));
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seq_printf(m, "status:\t\t%s\n", enabled(status, 0));
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if (hotkey_all_mask) {
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len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_user_mask);
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len += sprintf(p + len,
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"commands:\tenable, disable, reset, <mask>\n");
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seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask);
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seq_printf(m, "commands:\tenable, disable, reset, <mask>\n");
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} else {
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len += sprintf(p + len, "mask:\t\tnot supported\n");
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len += sprintf(p + len, "commands:\tenable, disable, reset\n");
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seq_printf(m, "mask:\t\tnot supported\n");
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seq_printf(m, "commands:\tenable, disable, reset\n");
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}
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return len;
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return 0;
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}
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static void hotkey_enabledisable_warn(bool enable)
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@ -4054,9 +4046,9 @@ static int __init bluetooth_init(struct ibm_init_struct *iibm)
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}
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/* procfs -------------------------------------------------------------- */
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static int bluetooth_read(char *p)
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static int bluetooth_read(struct seq_file *m)
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{
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return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, p);
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return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m);
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}
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static int bluetooth_write(char *buf)
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@ -4244,9 +4236,9 @@ static int __init wan_init(struct ibm_init_struct *iibm)
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}
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/* procfs -------------------------------------------------------------- */
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static int wan_read(char *p)
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static int wan_read(struct seq_file *m)
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{
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return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, p);
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return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m);
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}
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static int wan_write(char *buf)
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@ -4621,14 +4613,13 @@ static int video_expand_toggle(void)
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/* not reached */
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}
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static int video_read(char *p)
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static int video_read(struct seq_file *m)
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{
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int status, autosw;
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int len = 0;
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if (video_supported == TPACPI_VIDEO_NONE) {
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len += sprintf(p + len, "status:\t\tnot supported\n");
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return len;
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seq_printf(m, "status:\t\tnot supported\n");
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return 0;
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}
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status = video_outputsw_get();
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@ -4639,20 +4630,20 @@ static int video_read(char *p)
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if (autosw < 0)
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return autosw;
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len += sprintf(p + len, "status:\t\tsupported\n");
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len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0));
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len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1));
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seq_printf(m, "status:\t\tsupported\n");
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seq_printf(m, "lcd:\t\t%s\n", enabled(status, 0));
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seq_printf(m, "crt:\t\t%s\n", enabled(status, 1));
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if (video_supported == TPACPI_VIDEO_NEW)
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len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3));
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len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0));
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len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n");
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len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n");
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seq_printf(m, "dvi:\t\t%s\n", enabled(status, 3));
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seq_printf(m, "auto:\t\t%s\n", enabled(autosw, 0));
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seq_printf(m, "commands:\tlcd_enable, lcd_disable\n");
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seq_printf(m, "commands:\tcrt_enable, crt_disable\n");
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if (video_supported == TPACPI_VIDEO_NEW)
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len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n");
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len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n");
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len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n");
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seq_printf(m, "commands:\tdvi_enable, dvi_disable\n");
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seq_printf(m, "commands:\tauto_enable, auto_disable\n");
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seq_printf(m, "commands:\tvideo_switch, expand_toggle\n");
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return len;
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return 0;
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}
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static int video_write(char *buf)
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@ -4844,25 +4835,24 @@ static void light_exit(void)
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flush_workqueue(tpacpi_wq);
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}
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static int light_read(char *p)
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static int light_read(struct seq_file *m)
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{
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int len = 0;
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int status;
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if (!tp_features.light) {
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len += sprintf(p + len, "status:\t\tnot supported\n");
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seq_printf(m, "status:\t\tnot supported\n");
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} else if (!tp_features.light_status) {
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len += sprintf(p + len, "status:\t\tunknown\n");
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len += sprintf(p + len, "commands:\ton, off\n");
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seq_printf(m, "status:\t\tunknown\n");
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seq_printf(m, "commands:\ton, off\n");
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} else {
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status = light_get_status();
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if (status < 0)
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return status;
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len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0));
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len += sprintf(p + len, "commands:\ton, off\n");
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seq_printf(m, "status:\t\t%s\n", onoff(status, 0));
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seq_printf(m, "commands:\ton, off\n");
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}
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return len;
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return 0;
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}
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static int light_write(char *buf)
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@ -4940,20 +4930,18 @@ static void cmos_exit(void)
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device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command);
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}
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static int cmos_read(char *p)
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static int cmos_read(struct seq_file *m)
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{
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int len = 0;
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/* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
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R30, R31, T20-22, X20-21 */
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if (!cmos_handle)
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len += sprintf(p + len, "status:\t\tnot supported\n");
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seq_printf(m, "status:\t\tnot supported\n");
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else {
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len += sprintf(p + len, "status:\t\tsupported\n");
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len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n");
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seq_printf(m, "status:\t\tsupported\n");
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seq_printf(m, "commands:\t<cmd> (<cmd> is 0-21)\n");
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}
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return len;
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return 0;
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}
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static int cmos_write(char *buf)
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@ -5328,15 +5316,13 @@ static int __init led_init(struct ibm_init_struct *iibm)
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((s) == TPACPI_LED_OFF ? "off" : \
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((s) == TPACPI_LED_ON ? "on" : "blinking"))
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static int led_read(char *p)
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static int led_read(struct seq_file *m)
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{
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int len = 0;
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if (!led_supported) {
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len += sprintf(p + len, "status:\t\tnot supported\n");
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return len;
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seq_printf(m, "status:\t\tnot supported\n");
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return 0;
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}
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len += sprintf(p + len, "status:\t\tsupported\n");
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seq_printf(m, "status:\t\tsupported\n");
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if (led_supported == TPACPI_LED_570) {
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/* 570 */
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@ -5345,15 +5331,15 @@ static int led_read(char *p)
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status = led_get_status(i);
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if (status < 0)
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return -EIO;
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len += sprintf(p + len, "%d:\t\t%s\n",
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seq_printf(m, "%d:\t\t%s\n",
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i, str_led_status(status));
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}
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}
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len += sprintf(p + len, "commands:\t"
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seq_printf(m, "commands:\t"
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"<led> on, <led> off, <led> blink (<led> is 0-15)\n");
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return len;
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return 0;
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}
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static int led_write(char *buf)
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@ -5426,18 +5412,16 @@ static int __init beep_init(struct ibm_init_struct *iibm)
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return (beep_handle)? 0 : 1;
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}
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static int beep_read(char *p)
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static int beep_read(struct seq_file *m)
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{
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int len = 0;
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if (!beep_handle)
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len += sprintf(p + len, "status:\t\tnot supported\n");
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seq_printf(m, "status:\t\tnot supported\n");
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else {
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len += sprintf(p + len, "status:\t\tsupported\n");
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len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n");
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seq_printf(m, "status:\t\tsupported\n");
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seq_printf(m, "commands:\t<cmd> (<cmd> is 0-17)\n");
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}
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return len;
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return 0;
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}
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static int beep_write(char *buf)
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@ -5798,9 +5782,8 @@ static void thermal_exit(void)
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}
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}
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static int thermal_read(char *p)
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static int thermal_read(struct seq_file *m)
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{
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int len = 0;
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int n, i;
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struct ibm_thermal_sensors_struct t;
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@ -5808,16 +5791,16 @@ static int thermal_read(char *p)
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if (unlikely(n < 0))
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return n;
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len += sprintf(p + len, "temperatures:\t");
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seq_printf(m, "temperatures:\t");
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if (n > 0) {
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for (i = 0; i < (n - 1); i++)
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len += sprintf(p + len, "%d ", t.temp[i] / 1000);
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len += sprintf(p + len, "%d\n", t.temp[i] / 1000);
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seq_printf(m, "%d ", t.temp[i] / 1000);
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seq_printf(m, "%d\n", t.temp[i] / 1000);
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} else
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len += sprintf(p + len, "not supported\n");
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seq_printf(m, "not supported\n");
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return len;
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return 0;
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}
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static struct ibm_struct thermal_driver_data = {
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@ -5832,39 +5815,38 @@ static struct ibm_struct thermal_driver_data = {
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static u8 ecdump_regs[256];
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static int ecdump_read(char *p)
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static int ecdump_read(struct seq_file *m)
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{
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int len = 0;
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int i, j;
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u8 v;
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len += sprintf(p + len, "EC "
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seq_printf(m, "EC "
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" +00 +01 +02 +03 +04 +05 +06 +07"
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" +08 +09 +0a +0b +0c +0d +0e +0f\n");
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for (i = 0; i < 256; i += 16) {
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len += sprintf(p + len, "EC 0x%02x:", i);
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seq_printf(m, "EC 0x%02x:", i);
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for (j = 0; j < 16; j++) {
|
||||
if (!acpi_ec_read(i + j, &v))
|
||||
break;
|
||||
if (v != ecdump_regs[i + j])
|
||||
len += sprintf(p + len, " *%02x", v);
|
||||
seq_printf(m, " *%02x", v);
|
||||
else
|
||||
len += sprintf(p + len, " %02x", v);
|
||||
seq_printf(m, " %02x", v);
|
||||
ecdump_regs[i + j] = v;
|
||||
}
|
||||
len += sprintf(p + len, "\n");
|
||||
seq_putc(m, '\n');
|
||||
if (j != 16)
|
||||
break;
|
||||
}
|
||||
|
||||
/* These are way too dangerous to advertise openly... */
|
||||
#if 0
|
||||
len += sprintf(p + len, "commands:\t0x<offset> 0x<value>"
|
||||
seq_printf(m, "commands:\t0x<offset> 0x<value>"
|
||||
" (<offset> is 00-ff, <value> is 00-ff)\n");
|
||||
len += sprintf(p + len, "commands:\t0x<offset> <value> "
|
||||
seq_printf(m, "commands:\t0x<offset> <value> "
|
||||
" (<offset> is 00-ff, <value> is 0-255)\n");
|
||||
#endif
|
||||
return len;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ecdump_write(char *buf)
|
||||
|
|
@ -6317,23 +6299,22 @@ static void brightness_exit(void)
|
|||
tpacpi_brightness_checkpoint_nvram();
|
||||
}
|
||||
|
||||
static int brightness_read(char *p)
|
||||
static int brightness_read(struct seq_file *m)
|
||||
{
|
||||
int len = 0;
|
||||
int level;
|
||||
|
||||
level = brightness_get(NULL);
|
||||
if (level < 0) {
|
||||
len += sprintf(p + len, "level:\t\tunreadable\n");
|
||||
seq_printf(m, "level:\t\tunreadable\n");
|
||||
} else {
|
||||
len += sprintf(p + len, "level:\t\t%d\n", level);
|
||||
len += sprintf(p + len, "commands:\tup, down\n");
|
||||
len += sprintf(p + len, "commands:\tlevel <level>"
|
||||
seq_printf(m, "level:\t\t%d\n", level);
|
||||
seq_printf(m, "commands:\tup, down\n");
|
||||
seq_printf(m, "commands:\tlevel <level>"
|
||||
" (<level> is 0-%d)\n",
|
||||
(tp_features.bright_16levels) ? 15 : 7);
|
||||
}
|
||||
|
||||
return len;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int brightness_write(char *buf)
|
||||
|
|
@ -6921,29 +6902,28 @@ static int __init volume_init(struct ibm_init_struct *iibm)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int volume_read(char *p)
|
||||
static int volume_read(struct seq_file *m)
|
||||
{
|
||||
int len = 0;
|
||||
u8 status;
|
||||
|
||||
if (volume_get_status(&status) < 0) {
|
||||
len += sprintf(p + len, "level:\t\tunreadable\n");
|
||||
seq_printf(m, "level:\t\tunreadable\n");
|
||||
} else {
|
||||
if (tp_features.mixer_no_level_control)
|
||||
len += sprintf(p + len, "level:\t\tunsupported\n");
|
||||
seq_printf(m, "level:\t\tunsupported\n");
|
||||
else
|
||||
len += sprintf(p + len, "level:\t\t%d\n",
|
||||
seq_printf(m, "level:\t\t%d\n",
|
||||
status & TP_EC_AUDIO_LVL_MSK);
|
||||
|
||||
len += sprintf(p + len, "mute:\t\t%s\n",
|
||||
seq_printf(m, "mute:\t\t%s\n",
|
||||
onoff(status, TP_EC_AUDIO_MUTESW));
|
||||
|
||||
if (volume_control_allowed) {
|
||||
len += sprintf(p + len, "commands:\tunmute, mute\n");
|
||||
seq_printf(m, "commands:\tunmute, mute\n");
|
||||
if (!tp_features.mixer_no_level_control) {
|
||||
len += sprintf(p + len,
|
||||
seq_printf(m,
|
||||
"commands:\tup, down\n");
|
||||
len += sprintf(p + len,
|
||||
seq_printf(m,
|
||||
"commands:\tlevel <level>"
|
||||
" (<level> is 0-%d)\n",
|
||||
TP_EC_VOLUME_MAX);
|
||||
|
|
@ -6951,7 +6931,7 @@ static int volume_read(char *p)
|
|||
}
|
||||
}
|
||||
|
||||
return len;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int volume_write(char *buf)
|
||||
|
|
@ -8113,9 +8093,8 @@ static void fan_resume(void)
|
|||
}
|
||||
}
|
||||
|
||||
static int fan_read(char *p)
|
||||
static int fan_read(struct seq_file *m)
|
||||
{
|
||||
int len = 0;
|
||||
int rc;
|
||||
u8 status;
|
||||
unsigned int speed = 0;
|
||||
|
|
@ -8127,7 +8106,7 @@ static int fan_read(char *p)
|
|||
if (rc < 0)
|
||||
return rc;
|
||||
|
||||
len += sprintf(p + len, "status:\t\t%s\n"
|
||||
seq_printf(m, "status:\t\t%s\n"
|
||||
"level:\t\t%d\n",
|
||||
(status != 0) ? "enabled" : "disabled", status);
|
||||
break;
|
||||
|
|
@ -8138,54 +8117,54 @@ static int fan_read(char *p)
|
|||
if (rc < 0)
|
||||
return rc;
|
||||
|
||||
len += sprintf(p + len, "status:\t\t%s\n",
|
||||
seq_printf(m, "status:\t\t%s\n",
|
||||
(status != 0) ? "enabled" : "disabled");
|
||||
|
||||
rc = fan_get_speed(&speed);
|
||||
if (rc < 0)
|
||||
return rc;
|
||||
|
||||
len += sprintf(p + len, "speed:\t\t%d\n", speed);
|
||||
seq_printf(m, "speed:\t\t%d\n", speed);
|
||||
|
||||
if (status & TP_EC_FAN_FULLSPEED)
|
||||
/* Disengaged mode takes precedence */
|
||||
len += sprintf(p + len, "level:\t\tdisengaged\n");
|
||||
seq_printf(m, "level:\t\tdisengaged\n");
|
||||
else if (status & TP_EC_FAN_AUTO)
|
||||
len += sprintf(p + len, "level:\t\tauto\n");
|
||||
seq_printf(m, "level:\t\tauto\n");
|
||||
else
|
||||
len += sprintf(p + len, "level:\t\t%d\n", status);
|
||||
seq_printf(m, "level:\t\t%d\n", status);
|
||||
break;
|
||||
|
||||
case TPACPI_FAN_NONE:
|
||||
default:
|
||||
len += sprintf(p + len, "status:\t\tnot supported\n");
|
||||
seq_printf(m, "status:\t\tnot supported\n");
|
||||
}
|
||||
|
||||
if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) {
|
||||
len += sprintf(p + len, "commands:\tlevel <level>");
|
||||
seq_printf(m, "commands:\tlevel <level>");
|
||||
|
||||
switch (fan_control_access_mode) {
|
||||
case TPACPI_FAN_WR_ACPI_SFAN:
|
||||
len += sprintf(p + len, " (<level> is 0-7)\n");
|
||||
seq_printf(m, " (<level> is 0-7)\n");
|
||||
break;
|
||||
|
||||
default:
|
||||
len += sprintf(p + len, " (<level> is 0-7, "
|
||||
seq_printf(m, " (<level> is 0-7, "
|
||||
"auto, disengaged, full-speed)\n");
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (fan_control_commands & TPACPI_FAN_CMD_ENABLE)
|
||||
len += sprintf(p + len, "commands:\tenable, disable\n"
|
||||
seq_printf(m, "commands:\tenable, disable\n"
|
||||
"commands:\twatchdog <timeout> (<timeout> "
|
||||
"is 0 (off), 1-120 (seconds))\n");
|
||||
|
||||
if (fan_control_commands & TPACPI_FAN_CMD_SPEED)
|
||||
len += sprintf(p + len, "commands:\tspeed <speed>"
|
||||
seq_printf(m, "commands:\tspeed <speed>"
|
||||
" (<speed> is 0-65535)\n");
|
||||
|
||||
return len;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int fan_write_cmd_level(const char *cmd, int *rc)
|
||||
|
|
@ -8472,19 +8451,19 @@ static int __init ibm_init(struct ibm_init_struct *iibm)
|
|||
"%s installed\n", ibm->name);
|
||||
|
||||
if (ibm->read) {
|
||||
entry = create_proc_entry(ibm->name,
|
||||
S_IFREG | S_IRUGO | S_IWUSR,
|
||||
proc_dir);
|
||||
mode_t mode;
|
||||
|
||||
mode = S_IRUGO;
|
||||
if (ibm->write)
|
||||
mode |= S_IWUSR;
|
||||
entry = proc_create_data(ibm->name, mode, proc_dir,
|
||||
&dispatch_proc_fops, ibm);
|
||||
if (!entry) {
|
||||
printk(TPACPI_ERR "unable to create proc entry %s\n",
|
||||
ibm->name);
|
||||
ret = -ENODEV;
|
||||
goto err_out;
|
||||
}
|
||||
entry->data = ibm;
|
||||
entry->read_proc = &dispatch_procfs_read;
|
||||
if (ibm->write)
|
||||
entry->write_proc = &dispatch_procfs_write;
|
||||
ibm->flags.proc_created = 1;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue