Changeset 8300c72 in mainline for uspace/lib/device

Timestamp:

2025-03-03T22:58:05Z (8 months ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

master

Children:

77a0119

Parents:

f35749e

Message:

Quiesce devices before proceeding with shutdown.

Only implemented for e1k, uhci and xhci.

Location:

uspace/lib/device

Files:

• include/devman.h (modified) (2 diffs)
• include/ipc/devman.h (modified) (3 diffs)
• src/devman.c (modified) (3 diffs)

uspace/lib/device/include/devman.h

@@ -52 +52 @@
 extern errno_t devman_drv_fun_online(devman_handle_t);
 extern errno_t devman_drv_fun_offline(devman_handle_t);
+extern errno_t devman_drv_fun_quiesce(devman_handle_t);
 extern errno_t devman_drv_fun_wait_stable(devman_handle_t);
 
@@ -71 +72 @@
 extern errno_t devman_fun_online(devman_handle_t);
 extern errno_t devman_fun_offline(devman_handle_t);
+extern errno_t devman_fun_quiesce(devman_handle_t);
 
 extern errno_t devman_add_device_to_category(devman_handle_t, const char *);
 extern errno_t devman_fun_sid_to_handle(service_id_t, devman_handle_t *);
+extern errno_t devman_quiesce_devices(const char *);
 extern errno_t devman_get_drivers(devman_handle_t **, size_t *);
 extern errno_t devman_driver_get_devices(devman_handle_t, devman_handle_t **,

uspace/lib/device/include/ipc/devman.h

@@ -148 +148 @@
         DEVMAN_DRV_FUN_ONLINE,
         DEVMAN_DRV_FUN_OFFLINE,
+        DEVMAN_DRV_FUN_QUIESCE,
         DEVMAN_DRV_FUN_WAIT_STABLE,
         DEVMAN_REMOVE_FUNCTION
@@ -156 +157 @@
         DRIVER_DEV_REMOVE,
         DRIVER_DEV_GONE,
+        DRIVER_DEV_QUIESCE,
         DRIVER_FUN_ONLINE,
         DRIVER_FUN_OFFLINE,
@@ -171 +173 @@
         DEVMAN_FUN_ONLINE,
         DEVMAN_FUN_OFFLINE,
+        DEVMAN_FUN_QUIESCE,
         DEVMAN_FUN_GET_PATH,
         DEVMAN_FUN_SID_TO_HANDLE,

uspace/lib/device/src/devman.c

@@ -343 +343 @@
 }
 
+errno_t devman_drv_fun_quiesce(devman_handle_t funh)
+{
+        async_exch_t *exch = devman_exchange_begin(INTERFACE_DDF_DRIVER);
+        if (exch == NULL)
+                return ENOMEM;
+
+        errno_t retval = async_req_1_0(exch, DEVMAN_DRV_FUN_QUIESCE, funh);
+
+        devman_exchange_end(exch);
+        return retval;
+}
+
 errno_t devman_drv_fun_wait_stable(devman_handle_t funh)
 {
@@ -506 +518 @@
 }
 
+errno_t devman_fun_quiesce(devman_handle_t funh)
+{
+        async_exch_t *exch = devman_exchange_begin(INTERFACE_DDF_CLIENT);
+        if (exch == NULL)
+                return ENOMEM;
+
+        errno_t retval = async_req_1_0(exch, DEVMAN_FUN_QUIESCE, funh);
+
+        devman_exchange_end(exch);
+        return retval;
+}
+
 static errno_t devman_get_handles_once(sysarg_t method, sysarg_t arg1,
     devman_handle_t *handle_buf, size_t buf_size, size_t *act_size)
@@ -632 +656 @@
 }
 
+errno_t devman_quiesce_devices(const char *path)
+{
+        devman_handle_t funh;
+        errno_t rc;
+
+        funh = 0;
+        rc = devman_fun_get_handle(path, &funh, 0);
+        if (rc != EOK)
+                return rc;
+
+        return devman_fun_quiesce(funh);
+}
+
 errno_t devman_get_drivers(devman_handle_t **drvs,
     size_t *count)