Changeset 8300c72 in mainline for uspace/lib/device/src/devman.c

Timestamp:

2025-03-03T22:58:05Z (13 hours 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.

File:

• uspace/lib/device/src/devman.c (modified) (3 diffs)

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)