diff options
Diffstat (limited to 'drivers/platform/x86/thinkpad_acpi.c')
| -rw-r--r-- | drivers/platform/x86/thinkpad_acpi.c | 1189 |
1 files changed, 903 insertions, 286 deletions
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index a848c7e20aeb..448c8aeb166b 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -21,8 +21,8 @@ * 02110-1301, USA. */ -#define TPACPI_VERSION "0.23" -#define TPACPI_SYSFS_VERSION 0x020500 +#define TPACPI_VERSION "0.24" +#define TPACPI_SYSFS_VERSION 0x020700 /* * Changelog: @@ -61,6 +61,7 @@ #include <linux/nvram.h> #include <linux/proc_fs.h> +#include <linux/seq_file.h> #include <linux/sysfs.h> #include <linux/backlight.h> #include <linux/fb.h> @@ -76,6 +77,10 @@ #include <linux/jiffies.h> #include <linux/workqueue.h> +#include <sound/core.h> +#include <sound/control.h> +#include <sound/initval.h> + #include <acpi/acpi_drivers.h> #include <linux/pci_ids.h> @@ -231,6 +236,7 @@ enum tpacpi_hkey_event_t { #define TPACPI_DBG_HKEY 0x0008 #define TPACPI_DBG_FAN 0x0010 #define TPACPI_DBG_BRGHT 0x0020 +#define TPACPI_DBG_MIXER 0x0040 #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") @@ -256,7 +262,7 @@ struct tp_acpi_drv_struct { struct ibm_struct { char *name; - int (*read) (char *); + int (*read) (struct seq_file *); int (*write) (char *); void (*exit) (void); void (*resume) (void); @@ -298,6 +304,7 @@ static struct { u32 fan_ctrl_status_undef:1; u32 second_fan:1; u32 beep_needs_two_args:1; + u32 mixer_no_level_control:1; u32 input_device_registered:1; u32 platform_drv_registered:1; u32 platform_drv_attrs_registered:1; @@ -309,6 +316,7 @@ static struct { static struct { u16 hotkey_mask_ff:1; + u16 volume_ctrl_forbidden:1; } tp_warned; struct thinkpad_id_data { @@ -425,6 +433,12 @@ static void tpacpi_log_usertask(const char * const what) .ec = TPACPI_MATCH_ANY, \ .quirks = (__quirk) } +#define TPACPI_QEC_LNV(__id1, __id2, __quirk) \ + { .vendor = PCI_VENDOR_ID_LENOVO, \ + .bios = TPACPI_MATCH_ANY, \ + .ec = TPID(__id1, __id2), \ + .quirks = (__quirk) } + struct tpacpi_quirk { unsigned int vendor; u16 bios; @@ -776,36 +790,25 @@ static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) **************************************************************************** ****************************************************************************/ -static int dispatch_procfs_read(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int dispatch_proc_show(struct seq_file *m, void *v) { - struct ibm_struct *ibm = data; - int len; + struct ibm_struct *ibm = m->private; if (!ibm || !ibm->read) return -EINVAL; + return ibm->read(m); +} - len = ibm->read(page); - if (len < 0) - return len; - - if (len <= off + count) - *eof = 1; - *start = page + off; - len -= off; - if (len > count) - len = count; - if (len < 0) - len = 0; - - return len; +static int dispatch_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, dispatch_proc_show, PDE(inode)->data); } -static int dispatch_procfs_write(struct file *file, +static ssize_t dispatch_proc_write(struct file *file, const char __user *userbuf, - unsigned long count, void *data) + size_t count, loff_t *pos) { - struct ibm_struct *ibm = data; + struct ibm_struct *ibm = PDE(file->f_path.dentry->d_inode)->data; char *kernbuf; int ret; @@ -834,6 +837,15 @@ static int dispatch_procfs_write(struct file *file, return ret; } +static const struct file_operations dispatch_proc_fops = { + .owner = THIS_MODULE, + .open = dispatch_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .write = dispatch_proc_write, +}; + static char *next_cmd(char **cmds) { char *start = *cmds; @@ -1006,11 +1018,8 @@ static int parse_strtoul(const char *buf, { char *endp; - while (*buf && isspace(*buf)) - buf++; - *value = simple_strtoul(buf, &endp, 0); - while (*endp && isspace(*endp)) - endp++; + *value = simple_strtoul(skip_spaces(buf), &endp, 0); + endp = skip_spaces(endp); if (*endp || *value > max) return -EINVAL; @@ -1087,7 +1096,7 @@ static int __init tpacpi_check_std_acpi_brightness_support(void) */ status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, - tpacpi_acpi_walk_find_bcl, NULL, + tpacpi_acpi_walk_find_bcl, NULL, NULL, &bcl_ptr); if (ACPI_SUCCESS(status) && bcl_levels > 2) { @@ -1264,6 +1273,7 @@ static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, struct tpacpi_rfk *atp_rfk; int res; bool sw_state = false; + bool hw_state; int sw_status; BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]); @@ -1298,7 +1308,8 @@ static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, rfkill_init_sw_state(atp_rfk->rfkill, sw_state); } } - rfkill_set_hw_state(atp_rfk->rfkill, tpacpi_rfk_check_hwblock_state()); + hw_state = tpacpi_rfk_check_hwblock_state(); + rfkill_set_hw_state(atp_rfk->rfkill, hw_state); res = rfkill_register(atp_rfk->rfkill); if (res < 0) { @@ -1311,6 +1322,9 @@ static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, } tpacpi_rfkill_switches[id] = atp_rfk; + + printk(TPACPI_INFO "rfkill switch %s: radio is %sblocked\n", + name, (sw_state || hw_state) ? "" : "un"); return 0; } @@ -1383,12 +1397,10 @@ static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id, } /* procfs -------------------------------------------------------------- */ -static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, char *p) +static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m) { - int len = 0; - if (id >= TPACPI_RFK_SW_MAX) - len += sprintf(p + len, "status:\t\tnot supported\n"); + seq_printf(m, "status:\t\tnot supported\n"); else { int status; @@ -1402,13 +1414,13 @@ static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, char *p) return status; } - len += sprintf(p + len, "status:\t\t%s\n", + seq_printf(m, "status:\t\t%s\n", (status == TPACPI_RFK_RADIO_ON) ? "enabled" : "disabled"); - len += sprintf(p + len, "commands:\tenable, disable\n"); + seq_printf(m, "commands:\tenable, disable\n"); } - return len; + return 0; } static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf) @@ -1779,7 +1791,7 @@ static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { TPV_QL1('7', '9', 'E', '3', '5', '0'), /* T60/p */ TPV_QL1('7', 'C', 'D', '2', '2', '2'), /* R60, R60i */ - TPV_QL0('7', 'E', 'D', '0'), /* R60e, R60i */ + TPV_QL1('7', 'E', 'D', '0', '1', '5'), /* R60e, R60i */ /* BIOS FW BIOS VERS EC FW EC VERS */ TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'), /* R50e (1) */ @@ -1795,8 +1807,8 @@ static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { TPV_QI1('7', '4', '6', '4', '2', '7'), /* X41 (0) */ TPV_QI1('7', '5', '6', '0', '2', '0'), /* X41t (0) */ - TPV_QL0('7', 'B', 'D', '7'), /* X60/s */ - TPV_QL0('7', 'J', '3', '0'), /* X60t */ + TPV_QL1('7', 'B', 'D', '7', '4', '0'), /* X60/s */ + TPV_QL1('7', 'J', '3', '0', '1', '3'), /* X60t */ /* (0) - older versions lack DMI EC fw string and functionality */ /* (1) - older versions known to lack functionality */ @@ -1886,14 +1898,11 @@ static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) return 0; } -static int thinkpad_acpi_driver_read(char *p) +static int thinkpad_acpi_driver_read(struct seq_file *m) { - int len = 0; - - len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC); - len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION); - - return len; + seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC); + seq_printf(m, "version:\t%s\n", TPACPI_VERSION); + return 0; } static struct ibm_struct thinkpad_acpi_driver_data = { @@ -2189,7 +2198,8 @@ static int hotkey_mask_set(u32 mask) fwmask, hotkey_acpi_mask); } - hotkey_mask_warn_incomplete_mask(); + if (tpacpi_lifecycle != TPACPI_LIFE_EXITING) + hotkey_mask_warn_incomplete_mask(); return rc; } @@ -3185,6 +3195,8 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) int res, i; int status; int hkeyv; + bool radiosw_state = false; + bool tabletsw_state = false; unsigned long quirks; @@ -3290,6 +3302,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES if (dbg_wlswemul) { tp_features.hotkey_wlsw = 1; + radiosw_state = !!tpacpi_wlsw_emulstate; printk(TPACPI_INFO "radio switch emulation enabled\n"); } else @@ -3297,6 +3310,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) /* Not all thinkpads have a hardware radio switch */ if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { tp_features.hotkey_wlsw = 1; + radiosw_state = !!status; printk(TPACPI_INFO "radio switch found; radios are %s\n", enabled(status, 0)); @@ -3308,11 +3322,11 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) /* For X41t, X60t, X61t Tablets... */ if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { tp_features.hotkey_tablet = 1; + tabletsw_state = !!(status & TP_HOTKEY_TABLET_MASK); printk(TPACPI_INFO "possible tablet mode switch found; " "ThinkPad in %s mode\n", - (status & TP_HOTKEY_TABLET_MASK)? - "tablet" : "laptop"); + (tabletsw_state) ? "tablet" : "laptop"); res = add_to_attr_set(hotkey_dev_attributes, &dev_attr_hotkey_tablet_mode.attr); } @@ -3347,16 +3361,14 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) TPACPI_HOTKEY_MAP_SIZE); } - set_bit(EV_KEY, tpacpi_inputdev->evbit); - set_bit(EV_MSC, tpacpi_inputdev->evbit); - set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); + input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN); tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; tpacpi_inputdev->keycode = hotkey_keycode_map; for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { if (hotkey_keycode_map[i] != KEY_RESERVED) { - set_bit(hotkey_keycode_map[i], - tpacpi_inputdev->keybit); + input_set_capability(tpacpi_inputdev, EV_KEY, + hotkey_keycode_map[i]); } else { if (i < sizeof(hotkey_reserved_mask)*8) hotkey_reserved_mask |= 1 << i; @@ -3364,12 +3376,14 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) } if (tp_features.hotkey_wlsw) { - set_bit(EV_SW, tpacpi_inputdev->evbit); - set_bit(SW_RFKILL_ALL, tpacpi_inputdev->swbit); + input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL); + input_report_switch(tpacpi_inputdev, + SW_RFKILL_ALL, radiosw_state); } if (tp_features.hotkey_tablet) { - set_bit(EV_SW, tpacpi_inputdev->evbit); - set_bit(SW_TABLET_MODE, tpacpi_inputdev->swbit); + input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE); + input_report_switch(tpacpi_inputdev, + SW_TABLET_MODE, tabletsw_state); } /* Do not issue duplicate brightness change events to @@ -3436,8 +3450,6 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) tpacpi_inputdev->close = &hotkey_inputdev_close; hotkey_poll_setup_safe(true); - tpacpi_send_radiosw_update(); - tpacpi_input_send_tabletsw(); return 0; @@ -3545,49 +3557,57 @@ static bool hotkey_notify_usrevent(const u32 hkey, } } +static void thermal_dump_all_sensors(void); + static bool hotkey_notify_thermal(const u32 hkey, bool *send_acpi_ev, bool *ignore_acpi_ev) { + bool known = true; + /* 0x6000-0x6FFF: thermal alarms */ *send_acpi_ev = true; *ignore_acpi_ev = false; switch (hkey) { + case TP_HKEY_EV_THM_TABLE_CHANGED: + printk(TPACPI_INFO + "EC reports that Thermal Table has changed\n"); + /* recommended action: do nothing, we don't have + * Lenovo ATM information */ + return true; case TP_HKEY_EV_ALARM_BAT_HOT: printk(TPACPI_CRIT "THERMAL ALARM: battery is too hot!\n"); /* recommended action: warn user through gui */ - return true; + break; case TP_HKEY_EV_ALARM_BAT_XHOT: printk(TPACPI_ALERT "THERMAL EMERGENCY: battery is extremely hot!\n"); /* recommended action: immediate sleep/hibernate */ - return true; + break; case TP_HKEY_EV_ALARM_SENSOR_HOT: printk(TPACPI_CRIT "THERMAL ALARM: " "a sensor reports something is too hot!\n"); /* recommended action: warn user through gui, that */ /* some internal component is too hot */ - return true; + break; case TP_HKEY_EV_ALARM_SENSOR_XHOT: printk(TPACPI_ALERT "THERMAL EMERGENCY: " "a sensor reports something is extremely hot!\n"); /* recommended action: immediate sleep/hibernate */ - return true; - case TP_HKEY_EV_THM_TABLE_CHANGED: - printk(TPACPI_INFO - "EC reports that Thermal Table has changed\n"); - /* recommended action: do nothing, we don't have - * Lenovo ATM information */ - return true; + break; default: printk(TPACPI_ALERT "THERMAL ALERT: unknown thermal alarm received\n"); - return false; + known = false; } + + thermal_dump_all_sensors(); + + return known; } static void hotkey_notify(struct ibm_struct *ibm, u32 event) @@ -3730,14 +3750,13 @@ static void hotkey_resume(void) } /* procfs -------------------------------------------------------------- */ -static int hotkey_read(char *p) +static int hotkey_read(struct seq_file *m) { int res, status; - int len = 0; if (!tp_features.hotkey) { - len += sprintf(p + len, "status:\t\tnot supported\n"); - return len; + seq_printf(m, "status:\t\tnot supported\n"); + return 0; } if (mutex_lock_killable(&hotkey_mutex)) @@ -3749,17 +3768,16 @@ static int hotkey_read(char *p) if (res) return res; - len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); + seq_printf(m, "status:\t\t%s\n", enabled(status, 0)); if (hotkey_all_mask) { - len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_user_mask); - len += sprintf(p + len, - "commands:\tenable, disable, reset, <mask>\n"); + seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask); + seq_printf(m, "commands:\tenable, disable, reset, <mask>\n"); } else { - len += sprintf(p + len, "mask:\t\tnot supported\n"); - len += sprintf(p + len, "commands:\tenable, disable, reset\n"); + seq_printf(m, "mask:\t\tnot supported\n"); + seq_printf(m, "commands:\tenable, disable, reset\n"); } - return len; + return 0; } static void hotkey_enabledisable_warn(bool enable) @@ -3866,15 +3884,6 @@ enum { #define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw" -static void bluetooth_suspend(pm_message_t state) -{ - /* Try to make sure radio will resume powered off */ - if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", - TP_ACPI_BLTH_PWR_OFF_ON_RESUME)) - vdbg_printk(TPACPI_DBG_RFKILL, - "bluetooth power down on resume request failed\n"); -} - static int bluetooth_get_status(void) { int status; @@ -3908,10 +3917,9 @@ static int bluetooth_set_status(enum tpacpi_rfkill_state state) #endif /* We make sure to keep TP_ACPI_BLUETOOTH_RESUMECTRL off */ + status = TP_ACPI_BLUETOOTH_RESUMECTRL; if (state == TPACPI_RFK_RADIO_ON) - status = TP_ACPI_BLUETOOTH_RADIOSSW; - else - status = 0; + status |= TP_ACPI_BLUETOOTH_RADIOSSW; if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) return -EIO; @@ -4035,9 +4043,9 @@ static int __init bluetooth_init(struct ibm_init_struct *iibm) } /* procfs -------------------------------------------------------------- */ -static int bluetooth_read(char *p) +static int bluetooth_read(struct seq_file *m) { - return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, p); + return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m); } static int bluetooth_write(char *buf) @@ -4050,7 +4058,6 @@ static struct ibm_struct bluetooth_driver_data = { .read = bluetooth_read, .write = bluetooth_write, .exit = bluetooth_exit, - .suspend = bluetooth_suspend, .shutdown = bluetooth_shutdown, }; @@ -4068,15 +4075,6 @@ enum { #define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw" -static void wan_suspend(pm_message_t state) -{ - /* Try to make sure radio will resume powered off */ - if (!acpi_evalf(NULL, NULL, "\\WGSV", "qvd", - TP_ACPI_WGSV_PWR_OFF_ON_RESUME)) - vdbg_printk(TPACPI_DBG_RFKILL, - "WWAN power down on resume request failed\n"); -} - static int wan_get_status(void) { int status; @@ -4109,11 +4107,10 @@ static int wan_set_status(enum tpacpi_rfkill_state state) } #endif - /* We make sure to keep TP_ACPI_WANCARD_RESUMECTRL off */ + /* We make sure to set TP_ACPI_WANCARD_RESUMECTRL */ + status = TP_ACPI_WANCARD_RESUMECTRL; if (state == TPACPI_RFK_RADIO_ON) - status = TP_ACPI_WANCARD_RADIOSSW; - else - status = 0; + status |= TP_ACPI_WANCARD_RADIOSSW; if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) return -EIO; @@ -4236,9 +4233,9 @@ static int __init wan_init(struct ibm_init_struct *iibm) } /* procfs -------------------------------------------------------------- */ -static int wan_read(char *p) +static int wan_read(struct seq_file *m) { - return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, p); + return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m); } static int wan_write(char *buf) @@ -4251,7 +4248,6 @@ static struct ibm_struct wan_driver_data = { .read = wan_read, .write = wan_write, .exit = wan_exit, - .suspend = wan_suspend, .shutdown = wan_shutdown, }; @@ -4614,14 +4610,13 @@ static int video_expand_toggle(void) /* not reached */ } -static int video_read(char *p) +static int video_read(struct seq_file *m) { int status, autosw; - int len = 0; if (video_supported == TPACPI_VIDEO_NONE) { - len += sprintf(p + len, "status:\t\tnot supported\n"); - return len; + seq_printf(m, "status:\t\tnot supported\n"); + return 0; } status = video_outputsw_get(); @@ -4632,20 +4627,20 @@ static int video_read(char *p) if (autosw < 0) return autosw; - len += sprintf(p + len, "status:\t\tsupported\n"); - len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); - len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); + seq_printf(m, "status:\t\tsupported\n"); + seq_printf(m, "lcd:\t\t%s\n", enabled(status, 0)); + seq_printf(m, "crt:\t\t%s\n", enabled(status, 1)); if (video_supported == TPACPI_VIDEO_NEW) - len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); - len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); - len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); - len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); + seq_printf(m, "dvi:\t\t%s\n", enabled(status, 3)); + seq_printf(m, "auto:\t\t%s\n", enabled(autosw, 0)); + seq_printf(m, "commands:\tlcd_enable, lcd_disable\n"); + seq_printf(m, "commands:\tcrt_enable, crt_disable\n"); if (video_supported == TPACPI_VIDEO_NEW) - len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); - len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); - len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); + seq_printf(m, "commands:\tdvi_enable, dvi_disable\n"); + seq_printf(m, "commands:\tauto_enable, auto_disable\n"); + seq_printf(m, "commands:\tvideo_switch, expand_toggle\n"); - return len; + return 0; } static int video_write(char *buf) @@ -4837,25 +4832,24 @@ static void light_exit(void) flush_workqueue(tpacpi_wq); } -static int light_read(char *p) +static int light_read(struct seq_file *m) { - int len = 0; int status; if (!tp_features.light) { - len += sprintf(p + len, "status:\t\tnot supported\n"); + seq_printf(m, "status:\t\tnot supported\n"); } else if (!tp_features.light_status) { - len += sprintf(p + len, "status:\t\tunknown\n"); - len += sprintf(p + len, "commands:\ton, off\n"); + seq_printf(m, "status:\t\tunknown\n"); + seq_printf(m, "commands:\ton, off\n"); } else { status = light_get_status(); if (status < 0) return status; - len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); - len += sprintf(p + len, "commands:\ton, off\n"); + seq_printf(m, "status:\t\t%s\n", onoff(status, 0)); + seq_printf(m, "commands:\ton, off\n"); } - return len; + return 0; } static int light_write(char *buf) @@ -4933,20 +4927,18 @@ static void cmos_exit(void) device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); } -static int cmos_read(char *p) +static int cmos_read(struct seq_file *m) { - int len = 0; - /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, R30, R31, T20-22, X20-21 */ if (!cmos_handle) - len += sprintf(p + len, "status:\t\tnot supported\n"); + seq_printf(m, "status:\t\tnot supported\n"); else { - len += sprintf(p + len, "status:\t\tsupported\n"); - len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); + seq_printf(m, "status:\t\tsupported\n"); + seq_printf(m, "commands:\t<cmd> (<cmd> is 0-21)\n"); } - return len; + return 0; } static int cmos_write(char *buf) @@ -5321,15 +5313,13 @@ static int __init led_init(struct ibm_init_struct *iibm) ((s) == TPACPI_LED_OFF ? "off" : \ ((s) == TPACPI_LED_ON ? "on" : "blinking")) -static int led_read(char *p) +static int led_read(struct seq_file *m) { - int len = 0; - if (!led_supported) { - len += sprintf(p + len, "status:\t\tnot supported\n"); - return len; + seq_printf(m, "status:\t\tnot supported\n"); + return 0; } - len += sprintf(p + len, "status:\t\tsupported\n"); + seq_printf(m, "status:\t\tsupported\n"); if (led_supported == TPACPI_LED_570) { /* 570 */ @@ -5338,15 +5328,15 @@ static int led_read(char *p) status = led_get_status(i); if (status < 0) return -EIO; - len += sprintf(p + len, "%d:\t\t%s\n", + seq_printf(m, "%d:\t\t%s\n", i, str_led_status(status)); } } - len += sprintf(p + len, "commands:\t" + seq_printf(m, "commands:\t" "<led> on, <led> off, <led> blink (<led> is 0-15)\n"); - return len; + return 0; } static int led_write(char *buf) @@ -5419,18 +5409,16 @@ static int __init beep_init(struct ibm_init_struct *iibm) return (beep_handle)? 0 : 1; } -static int beep_read(char *p) +static int beep_read(struct seq_file *m) { - int len = 0; - if (!beep_handle) - len += sprintf(p + len, "status:\t\tnot supported\n"); + seq_printf(m, "status:\t\tnot supported\n"); else { - len += sprintf(p + len, "status:\t\tsupported\n"); - len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); + seq_printf(m, "status:\t\tsupported\n"); + seq_printf(m, "commands:\t<cmd> (<cmd> is 0-17)\n"); } - return len; + return 0; } static int beep_write(char *buf) @@ -5483,8 +5471,11 @@ enum { /* TPACPI_THERMAL_TPEC_* */ TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ + + TPACPI_THERMAL_SENSOR_NA = -128000, /* Sensor not available */ }; + #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ struct ibm_thermal_sensors_struct { s32 temp[TPACPI_MAX_THERMAL_SENSORS]; @@ -5574,6 +5565,28 @@ static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) return n; } +static void thermal_dump_all_sensors(void) +{ + int n, i; + struct ibm_thermal_sensors_struct t; + + n = thermal_get_sensors(&t); + if (n <= 0) + return; + + printk(TPACPI_NOTICE + "temperatures (Celsius):"); + + for (i = 0; i < n; i++) { + if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA) + printk(KERN_CONT " %d", (int)(t.temp[i] / 1000)); + else + printk(KERN_CONT " N/A"); + } + + printk(KERN_CONT "\n"); +} + /* sysfs temp##_input -------------------------------------------------- */ static ssize_t thermal_temp_input_show(struct device *dev, @@ -5589,7 +5602,7 @@ static ssize_t thermal_temp_input_show(struct device *dev, res = thermal_get_sensor(idx, &value); if (res) return res; - if (value == TP_EC_THERMAL_TMP_NA * 1000) + if (value == TPACPI_THERMAL_SENSOR_NA) return -ENXIO; return snprintf(buf, PAGE_SIZE, "%d\n", value); @@ -5766,9 +5779,8 @@ static void thermal_exit(void) } } -static int thermal_read(char *p) +static int thermal_read(struct seq_file *m) { - int len = 0; int n, i; struct ibm_thermal_sensors_struct t; @@ -5776,16 +5788,16 @@ static int thermal_read(char *p) if (unlikely(n < 0)) return n; - len += sprintf(p + len, "temperatures:\t"); + seq_printf(m, "temperatures:\t"); if (n > 0) { for (i = 0; i < (n - 1); i++) - len += sprintf(p + len, "%d ", t.temp[i] / 1000); - len += sprintf(p + len, "%d\n", t.temp[i] / 1000); + seq_printf(m, "%d ", t.temp[i] / 1000); + seq_printf(m, "%d\n", t.temp[i] / 1000); } else - len += sprintf(p + len, "not supported\n"); + seq_printf(m, "not supported\n"); - return len; + return 0; } static struct ibm_struct thermal_driver_data = { @@ -5800,39 +5812,38 @@ static struct ibm_struct thermal_driver_data = { static u8 ecdump_regs[256]; -static int ecdump_read(char *p) +static int ecdump_read(struct seq_file *m) { - int len = 0; int i, j; u8 v; - len += sprintf(p + len, "EC " + seq_printf(m, "EC " " +00 +01 +02 +03 +04 +05 +06 +07" " +08 +09 +0a +0b +0c +0d +0e +0f\n"); for (i = 0; i < 256; i += 16) { - len += sprintf(p + len, "EC 0x%02x:", i); + seq_printf(m, "EC 0x%02x:", i); 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) @@ -6095,6 +6106,12 @@ static int brightness_get(struct backlight_device *bd) return status & TP_EC_BACKLIGHT_LVLMSK; } +static void tpacpi_brightness_notify_change(void) +{ + backlight_force_update(ibm_backlight_device, + BACKLIGHT_UPDATE_HOTKEY); +} + static struct backlight_ops ibm_backlight_data = { .get_brightness = brightness_get, .update_status = brightness_update_status, @@ -6123,8 +6140,8 @@ static const struct tpacpi_quirk brightness_quirk_table[] __initconst = { /* Models with Intel Extreme Graphics 2 */ TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC), - TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_NOEC), - TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_NOEC), + TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), + TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), /* Models with Intel GMA900 */ TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */ @@ -6249,6 +6266,12 @@ static int __init brightness_init(struct ibm_init_struct *iibm) ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; backlight_update_status(ibm_backlight_device); + vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, + "brightness: registering brightness hotkeys " + "as change notification\n"); + tpacpi_hotkey_driver_mask_set(hotkey_driver_mask + | TP_ACPI_HKEY_BRGHTUP_MASK + | TP_ACPI_HKEY_BRGHTDWN_MASK);; return 0; } @@ -6273,23 +6296,22 @@ 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) @@ -6325,6 +6347,9 @@ static int brightness_write(char *buf) * Doing it this way makes the syscall restartable in case of EINTR */ rc = brightness_set(level); + if (!rc && ibm_backlight_device) + backlight_force_update(ibm_backlight_device, + BACKLIGHT_UPDATE_SYSFS); return (rc == -EINTR)? -ERESTARTSYS : rc; } @@ -6341,99 +6366,654 @@ static struct ibm_struct brightness_driver_data = { * Volume subdriver */ -static int volume_offset = 0x30; +/* + * IBM ThinkPads have a simple volume controller with MUTE gating. + * Very early Lenovo ThinkPads follow the IBM ThinkPad spec. + * + * Since the *61 series (and probably also the later *60 series), Lenovo + * ThinkPads only implement the MUTE gate. + * + * EC register 0x30 + * Bit 6: MUTE (1 mutes sound) + * Bit 3-0: Volume + * Other bits should be zero as far as we know. + * + * This is also stored in CMOS NVRAM, byte 0x60, bit 6 (MUTE), and + * bits 3-0 (volume). Other bits in NVRAM may have other functions, + * such as bit 7 which is used to detect repeated presses of MUTE, + * and we leave them unchanged. + */ + +#define TPACPI_ALSA_DRVNAME "ThinkPad EC" +#define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control" +#define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME + +static int alsa_index = SNDRV_DEFAULT_IDX1; +static char *alsa_id = "ThinkPadEC"; +static int alsa_enable = SNDRV_DEFAULT_ENABLE1; + +struct tpacpi_alsa_data { + struct snd_card *card; + struct snd_ctl_elem_id *ctl_mute_id; + struct snd_ctl_elem_id *ctl_vol_id; +}; + +static struct snd_card *alsa_card; + +enum { + TP_EC_AUDIO = 0x30, + + /* TP_EC_AUDIO bits */ + TP_EC_AUDIO_MUTESW = 6, + + /* TP_EC_AUDIO bitmasks */ + TP_EC_AUDIO_LVL_MSK = 0x0F, + TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW), + + /* Maximum volume */ + TP_EC_VOLUME_MAX = 14, +}; + +enum tpacpi_volume_access_mode { + TPACPI_VOL_MODE_AUTO = 0, /* Not implemented yet */ + TPACPI_VOL_MODE_EC, /* Pure EC control */ + TPACPI_VOL_MODE_UCMS_STEP, /* UCMS step-based control: N/A */ + TPACPI_VOL_MODE_ECNVRAM, /* EC control w/ NVRAM store */ + TPACPI_VOL_MODE_MAX +}; + +enum tpacpi_volume_capabilities { + TPACPI_VOL_CAP_AUTO = 0, /* Use white/blacklist */ + TPACPI_VOL_CAP_VOLMUTE, /* Output vol and mute */ + TPACPI_VOL_CAP_MUTEONLY, /* Output mute only */ + TPACPI_VOL_CAP_MAX +}; + +static enum tpacpi_volume_access_mode volume_mode = + TPACPI_VOL_MODE_MAX; + +static enum tpacpi_volume_capabilities volume_capabilities; +static int volume_control_allowed; -static int volume_read(char *p) +/* + * Used to syncronize writers to TP_EC_AUDIO and + * TP_NVRAM_ADDR_MIXER, as we need to do read-modify-write + */ +static struct mutex volume_mutex; + +static void tpacpi_volume_checkpoint_nvram(void) { - int len = 0; - u8 level; + u8 lec = 0; + u8 b_nvram; + u8 ec_mask; + + if (volume_mode != TPACPI_VOL_MODE_ECNVRAM) + return; + if (!volume_control_allowed) + return; + + vdbg_printk(TPACPI_DBG_MIXER, + "trying to checkpoint mixer state to NVRAM...\n"); - if (!acpi_ec_read(volume_offset, &level)) { - len += sprintf(p + len, "level:\t\tunreadable\n"); + if (tp_features.mixer_no_level_control) + ec_mask = TP_EC_AUDIO_MUTESW_MSK; + else + ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK; + + if (mutex_lock_killable(&volume_mutex) < 0) + return; + + if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec))) + goto unlock; + lec &= ec_mask; + b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER); + + if (lec != (b_nvram & ec_mask)) { + /* NVRAM needs update */ + b_nvram &= ~ec_mask; + b_nvram |= lec; + nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER); + dbg_printk(TPACPI_DBG_MIXER, + "updated NVRAM mixer status to 0x%02x (0x%02x)\n", + (unsigned int) lec, (unsigned int) b_nvram); } else { - len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); - len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); - len += sprintf(p + len, "commands:\tup, down, mute\n"); - len += sprintf(p + len, "commands:\tlevel <level>" - " (<level> is 0-15)\n"); + vdbg_printk(TPACPI_DBG_MIXER, + "NVRAM mixer status already is 0x%02x (0x%02x)\n", + (unsigned int) lec, (unsigned int) b_nvram); } - return len; +unlock: + mutex_unlock(&volume_mutex); } -static int volume_write(char *buf) +static int volume_get_status_ec(u8 *status) { - int cmos_cmd, inc, i; - u8 level, mute; - int new_level, new_mute; - char *cmd; + u8 s; - while ((cmd = next_cmd(&buf))) { - if (!acpi_ec_read(volume_offset, &level)) - return -EIO; - new_mute = mute = level & 0x40; - new_level = level = level & 0xf; + if (!acpi_ec_read(TP_EC_AUDIO, &s)) + return -EIO; - if (strlencmp(cmd, "up") == 0) { - if (mute) - new_mute = 0; - else - new_level = level == 15 ? 15 : level + 1; - } else if (strlencmp(cmd, "down") == 0) { - if (mute) - new_mute = 0; - else - new_level = level == 0 ? 0 : level - 1; - } else if (sscanf(cmd, "level %d", &new_level) == 1 && - new_level >= 0 && new_level <= 15) { - /* new_level set */ - } else if (strlencmp(cmd, "mute") == 0) { - new_mute = 0x40; - } else - return -EINVAL; + *status = s; - if (new_level != level) { - /* mute doesn't change */ + dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s); - cmos_cmd = (new_level > level) ? - TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; - inc = new_level > level ? 1 : -1; + return 0; +} - if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || - !acpi_ec_write(volume_offset, level))) - return -EIO; +static int volume_get_status(u8 *status) +{ + return volume_get_status_ec(status); +} - for (i = level; i != new_level; i += inc) - if (issue_thinkpad_cmos_command(cmos_cmd) || - !acpi_ec_write(volume_offset, i + inc)) - return -EIO; +static int volume_set_status_ec(const u8 status) +{ + if (!acpi_ec_write(TP_EC_AUDIO, status)) + return -EIO; - if (mute && - (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || - !acpi_ec_write(volume_offset, new_level + mute))) { - return -EIO; - } + dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status); + + return 0; +} + +static int volume_set_status(const u8 status) +{ + return volume_set_status_ec(status); +} + +static int volume_set_mute_ec(const bool mute) +{ + int rc; + u8 s, n; + + if (mutex_lock_killable(&volume_mutex) < 0) + return -EINTR; + + rc = volume_get_status_ec(&s); + if (rc) + goto unlock; + + n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK : + s & ~TP_EC_AUDIO_MUTESW_MSK; + + if (n != s) + rc = volume_set_status_ec(n); + +unlock: + mutex_unlock(&volume_mutex); + return rc; +} + +static int volume_set_mute(const bool mute) +{ + dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n", + (mute) ? "" : "un"); + return volume_set_mute_ec(mute); +} + +static int volume_set_volume_ec(const u8 vol) +{ + int rc; + u8 s, n; + + if (vol > TP_EC_VOLUME_MAX) + return -EINVAL; + + if (mutex_lock_killable(&volume_mutex) < 0) + return -EINTR; + + rc = volume_get_status_ec(&s); + if (rc) + goto unlock; + + n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol; + + if (n != s) + rc = volume_set_status_ec(n); + +unlock: + mutex_unlock(&volume_mutex); + return rc; +} + +static int volume_set_volume(const u8 vol) +{ + dbg_printk(TPACPI_DBG_MIXER, + "trying to set volume level to %hu\n", vol); + return volume_set_volume_ec(vol); +} + +static void volume_alsa_notify_change(void) +{ + struct tpacpi_alsa_data *d; + + if (alsa_card && alsa_card->private_data) { + d = alsa_card->private_data; + if (d->ctl_mute_id) + snd_ctl_notify(alsa_card, + SNDRV_CTL_EVENT_MASK_VALUE, + d->ctl_mute_id); + if (d->ctl_vol_id) + snd_ctl_notify(alsa_card, + SNDRV_CTL_EVENT_MASK_VALUE, + d->ctl_vol_id); + } +} + +static int volume_alsa_vol_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = TP_EC_VOLUME_MAX; + return 0; +} + +static int volume_alsa_vol_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u8 s; + int rc; + + rc = volume_get_status(&s); + if (rc < 0) + return rc; + + ucontrol->value.integer.value[0] = s & TP_EC_AUDIO_LVL_MSK; + return 0; +} + +static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + return volume_set_volume(ucontrol->value.integer.value[0]); +} + +#define volume_alsa_mute_info snd_ctl_boolean_mono_info + +static int volume_alsa_mute_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u8 s; + int rc; + + rc = volume_get_status(&s); + if (rc < 0) + return rc; + + ucontrol->value.integer.value[0] = + (s & TP_EC_AUDIO_MUTESW_MSK) ? 0 : 1; + return 0; +} + +static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + return volume_set_mute(!ucontrol->value.integer.value[0]); +} + +static struct snd_kcontrol_new volume_alsa_control_vol __devinitdata = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Console Playback Volume", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .info = volume_alsa_vol_info, + .get = volume_alsa_vol_get, +}; + +static struct snd_kcontrol_new volume_alsa_control_mute __devinitdata = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Console Playback Switch", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .info = volume_alsa_mute_info, + .get = volume_alsa_mute_get, +}; + +static void volume_suspend(pm_message_t state) +{ + tpacpi_volume_checkpoint_nvram(); +} + +static void volume_resume(void) +{ + volume_alsa_notify_change(); +} + +static void volume_shutdown(void) +{ + tpacpi_volume_checkpoint_nvram(); +} + +static void volume_exit(void) +{ + if (alsa_card) { + snd_card_free(alsa_card); + alsa_card = NULL; + } + + tpacpi_volume_checkpoint_nvram(); +} + +static int __init volume_create_alsa_mixer(void) +{ + struct snd_card *card; + struct tpacpi_alsa_data *data; + struct snd_kcontrol *ctl_vol; + struct snd_kcontrol *ctl_mute; + int rc; + + rc = snd_card_create(alsa_index, alsa_id, THIS_MODULE, + sizeof(struct tpacpi_alsa_data), &card); + if (rc < 0) + return rc; + if (!card) + return -ENOMEM; + + BUG_ON(!card->private_data); + data = card->private_data; + data->card = card; + + strlcpy(card->driver, TPACPI_ALSA_DRVNAME, + sizeof(card->driver)); + strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME, + sizeof(card->shortname)); + snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s", + (thinkpad_id.ec_version_str) ? + thinkpad_id.ec_version_str : "(unknown)"); + snprintf(card->longname, sizeof(card->longname), + "%s at EC reg 0x%02x, fw %s", card->shortname, TP_EC_AUDIO, + (thinkpad_id.ec_version_str) ? + thinkpad_id.ec_version_str : "unknown"); + + if (volume_control_allowed) { + volume_alsa_control_vol.put = volume_alsa_vol_put; + volume_alsa_control_vol.access = + SNDRV_CTL_ELEM_ACCESS_READWRITE; + + volume_alsa_control_mute.put = volume_alsa_mute_put; + volume_alsa_control_mute.access = + SNDRV_CTL_ELEM_ACCESS_READWRITE; + } + + if (!tp_features.mixer_no_level_control) { + ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL); + rc = snd_ctl_add(card, ctl_vol); + if (rc < 0) { + printk(TPACPI_ERR + "Failed to create ALSA volume control\n"); + goto err_out; } + data->ctl_vol_id = &ctl_vol->id; + } - if (new_mute != mute) { - /* level doesn't change */ + ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL); + rc = snd_ctl_add(card, ctl_mute); + if (rc < 0) { + printk(TPACPI_ERR "Failed to create ALSA mute control\n"); + goto err_out; + } + data->ctl_mute_id = &ctl_mute->id; - cmos_cmd = (new_mute) ? - TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; + snd_card_set_dev(card, &tpacpi_pdev->dev); + rc = snd_card_register(card); - if (issue_thinkpad_cmos_command(cmos_cmd) || - !acpi_ec_write(volume_offset, level + new_mute)) - return -EIO; +err_out: + if (rc < 0) { + snd_card_free(card); + card = NULL; + } + + alsa_card = card; + return rc; +} + +#define TPACPI_VOL_Q_MUTEONLY 0x0001 /* Mute-only control available */ +#define TPACPI_VOL_Q_LEVEL 0x0002 /* Volume control available */ + +static const struct tpacpi_quirk volume_quirk_table[] __initconst = { + /* Whitelist volume level on all IBM by default */ + { .vendor = PCI_VENDOR_ID_IBM, + .bios = TPACPI_MATCH_ANY, + .ec = TPACPI_MATCH_ANY, + .quirks = TPACPI_VOL_Q_LEVEL }, + + /* Lenovo models with volume control (needs confirmation) */ + TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL), /* R60/i */ + TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL), /* R60e/i */ + TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL), /* T60/p */ + TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL), /* X60/s */ + TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL), /* X60t */ + TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL), /* Z60 */ + TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL), /* Z61 */ + + /* Whitelist mute-only on all Lenovo by default */ + { .vendor = PCI_VENDOR_ID_LENOVO, + .bios = TPACPI_MATCH_ANY, + .ec = TPACPI_MATCH_ANY, + .quirks = TPACPI_VOL_Q_MUTEONLY } +}; + +static int __init volume_init(struct ibm_init_struct *iibm) +{ + unsigned long quirks; + int rc; + + vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n"); + + mutex_init(&volume_mutex); + + /* + * Check for module parameter bogosity, note that we + * init volume_mode to TPACPI_VOL_MODE_MAX in order to be + * able to detect "unspecified" + */ + if (volume_mode > TPACPI_VOL_MODE_MAX) + return -EINVAL; + + if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) { + printk(TPACPI_ERR + "UCMS step volume mode not implemented, " + "please contact %s\n", TPACPI_MAIL); + return 1; + } + + if (volume_capabilities >= TPACPI_VOL_CAP_MAX) + return -EINVAL; + + /* + * The ALSA mixer is our primary interface. + * When disabled, don't install the subdriver at all + */ + if (!alsa_enable) { + vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, + "ALSA mixer disabled by parameter, " + "not loading volume subdriver...\n"); + return 1; + } + + quirks = tpacpi_check_quirks(volume_quirk_table, + ARRAY_SIZE(volume_quirk_table)); + + switch (volume_capabilities) { + case TPACPI_VOL_CAP_AUTO: + if (quirks & TPACPI_VOL_Q_MUTEONLY) + tp_features.mixer_no_level_control = 1; + else if (quirks & TPACPI_VOL_Q_LEVEL) + tp_features.mixer_no_level_control = 0; + else + return 1; /* no mixer */ + break; + case TPACPI_VOL_CAP_VOLMUTE: + tp_features.mixer_no_level_control = 0; + break; + case TPACPI_VOL_CAP_MUTEONLY: + tp_features.mixer_no_level_control = 1; + break; + default: + return 1; + } + + if (volume_capabilities != TPACPI_VOL_CAP_AUTO) + dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, + "using user-supplied volume_capabilities=%d\n", + volume_capabilities); + + if (volume_mode == TPACPI_VOL_MODE_AUTO || + volume_mode == TPACPI_VOL_MODE_MAX) { + volume_mode = TPACPI_VOL_MODE_ECNVRAM; + + dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, + "driver auto-selected volume_mode=%d\n", + volume_mode); + } else { + dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, + "using user-supplied volume_mode=%d\n", + volume_mode); + } + + vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, + "mute is supported, volume control is %s\n", + str_supported(!tp_features.mixer_no_level_control)); + + rc = volume_create_alsa_mixer(); + if (rc) { + printk(TPACPI_ERR + "Could not create the ALSA mixer interface\n"); + return rc; + } + + printk(TPACPI_INFO + "Console audio control enabled, mode: %s\n", + (volume_control_allowed) ? + "override (read/write)" : + "monitor (read only)"); + + vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, + "registering volume hotkeys as change notification\n"); + tpacpi_hotkey_driver_mask_set(hotkey_driver_mask + | TP_ACPI_HKEY_VOLUP_MASK + | TP_ACPI_HKEY_VOLDWN_MASK + | TP_ACPI_HKEY_MUTE_MASK); + + return 0; +} + +static int volume_read(struct seq_file *m) +{ + u8 status; + + if (volume_get_status(&status) < 0) { + seq_printf(m, "level:\t\tunreadable\n"); + } else { + if (tp_features.mixer_no_level_control) + seq_printf(m, "level:\t\tunsupported\n"); + else + seq_printf(m, "level:\t\t%d\n", + status & TP_EC_AUDIO_LVL_MSK); + + seq_printf(m, "mute:\t\t%s\n", + onoff(status, TP_EC_AUDIO_MUTESW)); + + if (volume_control_allowed) { + seq_printf(m, "commands:\tunmute, mute\n"); + if (!tp_features.mixer_no_level_control) { + seq_printf(m, + "commands:\tup, down\n"); + seq_printf(m, + "commands:\tlevel <level>" + " (<level> is 0-%d)\n", + TP_EC_VOLUME_MAX); + } } } return 0; } +static int volume_write(char *buf) +{ + u8 s; + u8 new_level, new_mute; + int l; + char *cmd; + int rc; + + /* + * We do allow volume control at driver startup, so that the + * user can set initial state through the volume=... parameter hack. + */ + if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) { + if (unlikely(!tp_warned.volume_ctrl_forbidden)) { + tp_warned.volume_ctrl_forbidden = 1; + printk(TPACPI_NOTICE + "Console audio control in monitor mode, " + "changes are not allowed.\n"); + printk(TPACPI_NOTICE + "Use the volume_control=1 module parameter " + "to enable volume control\n"); + } + return -EPERM; + } + + rc = volume_get_status(&s); + if (rc < 0) + return rc; + + new_level = s & TP_EC_AUDIO_LVL_MSK; + new_mute = s & TP_EC_AUDIO_MUTESW_MSK; + + while ((cmd = next_cmd(&buf))) { + if (!tp_features.mixer_no_level_control) { + if (strlencmp(cmd, "up") == 0) { + if (new_mute) + new_mute = 0; + else if (new_level < TP_EC_VOLUME_MAX) + new_level++; + continue; + } else if (strlencmp(cmd, "down") == 0) { + if (new_mute) + new_mute = 0; + else if (new_level > 0) + new_level--; + continue; + } else if (sscanf(cmd, "level %u", &l) == 1 && + l >= 0 && l <= TP_EC_VOLUME_MAX) { + new_level = l; + continue; + } + } + if (strlencmp(cmd, "mute") == 0) + new_mute = TP_EC_AUDIO_MUTESW_MSK; + else if (strlencmp(cmd, "unmute") == 0) + new_mute = 0; + else + return -EINVAL; + } + + if (tp_features.mixer_no_level_control) { + tpacpi_disclose_usertask("procfs volume", "%smute\n", + new_mute ? "" : "un"); + rc = volume_set_mute(!!new_mute); + } else { + tpacpi_disclose_usertask("procfs volume", + "%smute and set level to %d\n", + new_mute ? "" : "un", new_level); + rc = volume_set_status(new_mute | new_level); + } + volume_alsa_notify_change(); + + return (rc == -EINTR) ? -ERESTARTSYS : rc; +} + static struct ibm_struct volume_driver_data = { .name = "volume", .read = volume_read, .write = volume_write, + .exit = volume_exit, + .suspend = volume_suspend, + .resume = volume_resume, + .shutdown = volume_shutdown, }; /************************************************************************* @@ -6545,7 +7125,7 @@ static struct ibm_struct volume_driver_data = { * The speeds are stored on handles * (FANA:FAN9), (FANC:FANB), (FANE:FAND). * - * There are three default speed sets, acessible as handles: + * There are three default speed sets, accessible as handles: * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H * * ACPI DSDT switches which set is in use depending on various @@ -7510,9 +8090,8 @@ 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; @@ -7524,7 +8103,7 @@ 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; @@ -7535,54 +8114,54 @@ 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) @@ -7724,10 +8303,23 @@ static struct ibm_struct fan_driver_data = { */ static void tpacpi_driver_event(const unsigned int hkey_event) { + if (ibm_backlight_device) { + switch (hkey_event) { + case TP_HKEY_EV_BRGHT_UP: + case TP_HKEY_EV_BRGHT_DOWN: + tpacpi_brightness_notify_change(); + } + } + if (alsa_card) { + switch (hkey_event) { + case TP_HKEY_EV_VOL_UP: + case TP_HKEY_EV_VOL_DOWN: + case TP_HKEY_EV_VOL_MUTE: + volume_alsa_notify_change(); + } + } } - - static void hotkey_driver_event(const unsigned int scancode) { tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode); @@ -7856,19 +8448,19 @@ 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; } @@ -8080,6 +8672,7 @@ static struct ibm_init_struct ibms_init[] __initdata = { .data = &brightness_driver_data, }, { + .init = volume_init, .data = &volume_driver_data, }, { @@ -8115,36 +8708,59 @@ static int __init set_ibm_param(const char *val, struct kernel_param *kp) return -EINVAL; } -module_param(experimental, int, 0); +module_param(experimental, int, 0444); MODULE_PARM_DESC(experimental, "Enables experimental features when non-zero"); module_param_named(debug, dbg_level, uint, 0); MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); -module_param(force_load, bool, 0); +module_param(force_load, bool, 0444); MODULE_PARM_DESC(force_load, "Attempts to load the driver even on a " "mis-identified ThinkPad when true"); -module_param_named(fan_control, fan_control_allowed, bool, 0); +module_param_named(fan_control, fan_control_allowed, bool, 0444); MODULE_PARM_DESC(fan_control, "Enables setting fan parameters features when true"); -module_param_named(brightness_mode, brightness_mode, uint, 0); +module_param_named(brightness_mode, brightness_mode, uint, 0444); MODULE_PARM_DESC(brightness_mode, "Selects brightness control strategy: " "0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM"); -module_param(brightness_enable, uint, 0); +module_param(brightness_enable, uint, 0444); MODULE_PARM_DESC(brightness_enable, "Enables backlight control when 1, disables when 0"); -module_param(hotkey_report_mode, uint, 0); +module_param(hotkey_report_mode, uint, 0444); MODULE_PARM_DESC(hotkey_report_mode, "used for backwards compatibility with userspace, " "see documentation"); +module_param_named(volume_mode, volume_mode, uint, 0444); +MODULE_PARM_DESC(volume_mode, + "Selects volume control strategy: " + "0=auto, 1=EC, 2=N/A, 3=EC+NVRAM"); + +module_param_named(volume_capabilities, volume_capabilities, uint, 0444); +MODULE_PARM_DESC(volume_capabilities, + "Selects the mixer capabilites: " + "0=auto, 1=volume and mute, 2=mute only"); + +module_param_named(volume_control, volume_control_allowed, bool, 0444); +MODULE_PARM_DESC(volume_control, + "Enables software override for the console audio " + "control when true"); + +/* ALSA module API parameters */ +module_param_named(index, alsa_index, int, 0444); +MODULE_PARM_DESC(index, "ALSA index for the ACPI EC Mixer"); +module_param_named(id, alsa_id, charp, 0444); +MODULE_PARM_DESC(id, "ALSA id for the ACPI EC Mixer"); +module_param_named(enable, alsa_enable, bool, 0444); +MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer"); + #define TPACPI_PARAM(feature) \ module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ @@ -8163,25 +8779,25 @@ TPACPI_PARAM(volume); TPACPI_PARAM(fan); #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES -module_param(dbg_wlswemul, uint, 0); +module_param(dbg_wlswemul, uint, 0444); MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); MODULE_PARM_DESC(wlsw_state, "Initial state of the emulated WLSW switch"); -module_param(dbg_bluetoothemul, uint, 0); +module_param(dbg_bluetoothemul, uint, 0444); MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); MODULE_PARM_DESC(bluetooth_state, "Initial state of the emulated bluetooth switch"); -module_param(dbg_wwanemul, uint, 0); +module_param(dbg_wwanemul, uint, 0444); MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); MODULE_PARM_DESC(wwan_state, "Initial state of the emulated WWAN switch"); -module_param(dbg_uwbemul, uint, 0); +module_param(dbg_uwbemul, uint, 0444); MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); MODULE_PARM_DESC(uwb_state, @@ -8374,6 +8990,7 @@ static int __init thinkpad_acpi_module_init(void) PCI_VENDOR_ID_IBM; tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; + tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev; } for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { ret = ibm_init(&ibms_init[i]); |