Changes in uspace/lib/block/libblock.c [867e2555:7a72ce1a] in mainline

File:

• uspace/lib/block/libblock.c (modified) (38 diffs)

uspace/lib/block/libblock.c

@@ -39 +39 @@
 #include "libblock.h"
 #include "../../srv/vfs/vfs.h"
-#include <ipc/devmap.h>
+#include <ipc/loc.h>
 #include <ipc/bd.h>
 #include <ipc/services.h>
@@ -78 +78 @@
 typedef struct {
         link_t link;
-        devmap_handle_t devmap_handle;
+        service_id_t service_id;
         async_sess_t *sess;
         fibril_mutex_t comm_area_lock;
@@ -93 +93 @@
 static int get_block_size(async_sess_t *, size_t *);
 static int get_num_blocks(async_sess_t *, aoff64_t *);
+static int read_toc(async_sess_t *, uint8_t);
 static aoff64_t ba_ltop(devcon_t *, aoff64_t);
 
-static devcon_t *devcon_search(devmap_handle_t devmap_handle)
+static devcon_t *devcon_search(service_id_t service_id)
 {
         fibril_mutex_lock(&dcl_lock);
@@ -101 +102 @@
         list_foreach(dcl, cur) {
                 devcon_t *devcon = list_get_instance(cur, devcon_t, link);
-                if (devcon->devmap_handle == devmap_handle) {
+                if (devcon->service_id == service_id) {
                         fibril_mutex_unlock(&dcl_lock);
                         return devcon;
@@ -111 +112 @@
 }
 
-static int devcon_add(devmap_handle_t devmap_handle, async_sess_t *sess,
+static int devcon_add(service_id_t service_id, async_sess_t *sess,
     size_t bsize, void *comm_area, size_t comm_size)
 {
@@ -124 +125 @@
         
         link_initialize(&devcon->link);
-        devcon->devmap_handle = devmap_handle;
+        devcon->service_id = service_id;
         devcon->sess = sess;
         fibril_mutex_initialize(&devcon->comm_area_lock);
@@ -137 +138 @@
         list_foreach(dcl, cur) {
                 devcon_t *d = list_get_instance(cur, devcon_t, link);
-                if (d->devmap_handle == devmap_handle) {
+                if (d->service_id == service_id) {
                         fibril_mutex_unlock(&dcl_lock);
                         free(devcon);
@@ -155 +156 @@
 }
 
-int block_init(exch_mgmt_t mgmt, devmap_handle_t devmap_handle,
+int block_init(exch_mgmt_t mgmt, service_id_t service_id,
     size_t comm_size)
 {
@@ -163 +164 @@
                 return ENOMEM;
         
-        async_sess_t *sess = devmap_device_connect(mgmt, devmap_handle,
+        async_sess_t *sess = loc_service_connect(mgmt, service_id,
             IPC_FLAG_BLOCKING);
         if (!sess) {
@@ -190 +191 @@
         }
         
-        rc = devcon_add(devmap_handle, sess, bsize, comm_area, comm_size);
+        rc = devcon_add(service_id, sess, bsize, comm_area, comm_size);
         if (rc != EOK) {
                 munmap(comm_area, comm_size);
@@ -200 +201 @@
 }
 
-void block_fini(devmap_handle_t devmap_handle)
-{
-        devcon_t *devcon = devcon_search(devmap_handle);
+void block_fini(service_id_t service_id)
+{
+        devcon_t *devcon = devcon_search(service_id);
         assert(devcon);
         
         if (devcon->cache)
-                (void) block_cache_fini(devmap_handle);
+                (void) block_cache_fini(service_id);
         
         devcon_remove(devcon);
@@ -219 +220 @@
 }
 
-int block_bb_read(devmap_handle_t devmap_handle, aoff64_t ba)
+int block_bb_read(service_id_t service_id, aoff64_t ba)
 {
         void *bb_buf;
         int rc;
 
-        devcon_t *devcon = devcon_search(devmap_handle);
+        devcon_t *devcon = devcon_search(service_id);
         if (!devcon)
                 return ENOENT;
@@ -249 +250 @@
 }
 
-void *block_bb_get(devmap_handle_t devmap_handle)
-{
-        devcon_t *devcon = devcon_search(devmap_handle);
+void *block_bb_get(service_id_t service_id)
+{
+        devcon_t *devcon = devcon_search(service_id);
         assert(devcon);
         return devcon->bb_buf;
@@ -277 +278 @@
 };
 
-int block_cache_init(devmap_handle_t devmap_handle, size_t size, unsigned blocks,
+int block_cache_init(service_id_t service_id, size_t size, unsigned blocks,
     enum cache_mode mode)
 {
-        devcon_t *devcon = devcon_search(devmap_handle);
+        devcon_t *devcon = devcon_search(service_id);
         cache_t *cache;
         if (!devcon)
@@ -315 +316 @@
 }
 
-int block_cache_fini(devmap_handle_t devmap_handle)
-{
-        devcon_t *devcon = devcon_search(devmap_handle);
+int block_cache_fini(service_id_t service_id)
+{
+        devcon_t *devcon = devcon_search(service_id);
         cache_t *cache;
         int rc;
@@ -387 +388 @@
  * @param block                 Pointer to where the function will store the
  *                              block pointer on success.
- * @param devmap_handle         Device handle of the block device.
+ * @param service_id            Service ID of the block device.
  * @param ba                    Block address (logical).
  * @param flags                 If BLOCK_FLAGS_NOREAD is specified, block_get()
@@ -395 +396 @@
  * @return                      EOK on success or a negative error code.
  */
-int block_get(block_t **block, devmap_handle_t devmap_handle, aoff64_t ba, int flags)
+int block_get(block_t **block, service_id_t service_id, aoff64_t ba, int flags)
 {
         devcon_t *devcon;
@@ -408 +409 @@
         int rc;
         
-        devcon = devcon_search(devmap_handle);
+        devcon = devcon_search(service_id);
 
         assert(devcon);
@@ -536 +537 @@
 
                 block_initialize(b);
-                b->devmap_handle = devmap_handle;
+                b->service_id = service_id;
                 b->size = cache->lblock_size;
                 b->lba = ba;
@@ -586 +587 @@
 int block_put(block_t *block)
 {
-        devcon_t *devcon = devcon_search(block->devmap_handle);
+        devcon_t *devcon = devcon_search(block->service_id);
         cache_t *cache;
         unsigned blocks_cached;
@@ -687 +688 @@
 /** Read sequential data from a block device.
  *
- * @param devmap_handle Device handle of the block device.
+ * @param service_id    Service ID of the block device.
  * @param bufpos        Pointer to the first unread valid offset within the
  *                      communication buffer.
@@ -699 +700 @@
  * @return              EOK on success or a negative return code on failure.
  */
-int block_seqread(devmap_handle_t devmap_handle, size_t *bufpos, size_t *buflen,
+int block_seqread(service_id_t service_id, size_t *bufpos, size_t *buflen,
     aoff64_t *pos, void *dst, size_t size)
 {
@@ -707 +708 @@
         devcon_t *devcon;
 
-        devcon = devcon_search(devmap_handle);
+        devcon = devcon_search(service_id);
         assert(devcon);
         block_size = devcon->pblock_size;
@@ -753 +754 @@
 /** Read blocks directly from device (bypass cache).
  *
- * @param devmap_handle Device handle of the block device.
+ * @param service_id    Service ID of the block device.
  * @param ba            Address of first block (physical).
  * @param cnt           Number of blocks.
@@ -760 +761 @@
  * @return              EOK on success or negative error code on failure.
  */
-int block_read_direct(devmap_handle_t devmap_handle, aoff64_t ba, size_t cnt, void *buf)
+int block_read_direct(service_id_t service_id, aoff64_t ba, size_t cnt, void *buf)
 {
         devcon_t *devcon;
         int rc;
 
-        devcon = devcon_search(devmap_handle);
+        devcon = devcon_search(service_id);
         assert(devcon);
         
@@ -781 +782 @@
 /** Write blocks directly to device (bypass cache).
  *
- * @param devmap_handle Device handle of the block device.
+ * @param service_id    Service ID of the block device.
  * @param ba            Address of first block (physical).
  * @param cnt           Number of blocks.
@@ -788 +789 @@
  * @return              EOK on success or negative error code on failure.
  */
-int block_write_direct(devmap_handle_t devmap_handle, aoff64_t ba, size_t cnt,
+int block_write_direct(service_id_t service_id, aoff64_t ba, size_t cnt,
     const void *data)
 {
@@ -794 +795 @@
         int rc;
 
-        devcon = devcon_search(devmap_handle);
+        devcon = devcon_search(service_id);
         assert(devcon);
         
@@ -809 +810 @@
 /** Get device block size.
  *
- * @param devmap_handle Device handle of the block device.
+ * @param service_id    Service ID of the block device.
  * @param bsize         Output block size.
  *
  * @return              EOK on success or negative error code on failure.
  */
-int block_get_bsize(devmap_handle_t devmap_handle, size_t *bsize)
+int block_get_bsize(service_id_t service_id, size_t *bsize)
 {
         devcon_t *devcon;
 
-        devcon = devcon_search(devmap_handle);
+        devcon = devcon_search(service_id);
         assert(devcon);
         
@@ -826 +827 @@
 /** Get number of blocks on device.
  *
- * @param devmap_handle Device handle of the block device.
+ * @param service_id    Service ID of the block device.
  * @param nblocks       Output number of blocks.
  *
  * @return              EOK on success or negative error code on failure.
  */
-int block_get_nblocks(devmap_handle_t devmap_handle, aoff64_t *nblocks)
-{
-        devcon_t *devcon = devcon_search(devmap_handle);
+int block_get_nblocks(service_id_t service_id, aoff64_t *nblocks)
+{
+        devcon_t *devcon = devcon_search(service_id);
         assert(devcon);
         
@@ -841 +842 @@
 /** Read bytes directly from the device (bypass cache)
  * 
- * @param devmap_handle Device handle of the block device.
+ * @param service_id    Service ID of the block device.
  * @param abs_offset    Absolute offset in bytes where to start reading
  * @param bytes                 Number of bytes to read
@@ -848 +849 @@
  * @return              EOK on success or negative error code on failure.
  */
-int block_read_bytes_direct(devmap_handle_t devmap_handle, aoff64_t abs_offset,
+int block_read_bytes_direct(service_id_t service_id, aoff64_t abs_offset,
     size_t bytes, void *data)
 {
@@ -860 +861 @@
         size_t offset;
         
-        rc = block_get_bsize(devmap_handle, &phys_block_size);
+        rc = block_get_bsize(service_id, &phys_block_size);
         if (rc != EOK) {
                 return rc;
@@ -878 +879 @@
         }
         
-        rc = block_read_direct(devmap_handle, first_block, blocks, buffer);
+        rc = block_read_direct(service_id, first_block, blocks, buffer);
         if (rc != EOK) {
                 free(buffer);
@@ -889 +890 @@
         
         return EOK;
+}
+
+/** Get TOC from device.
+ *
+ * @param service_id Service ID of the block device.
+ * @param session    Starting session.
+ * @param data       Buffer to read TOC into.
+ *
+ * @return EOK on success.
+ * @return Error code on failure.
+ *
+ */
+int block_get_toc(service_id_t service_id, uint8_t session, void *data)
+{
+        devcon_t *devcon = devcon_search(service_id);
+        assert(devcon);
+        
+        fibril_mutex_lock(&devcon->comm_area_lock);
+        
+        int rc = read_toc(devcon->sess, session);
+        if (rc == EOK)
+                memcpy(data, devcon->comm_area, devcon->pblock_size);
+        
+        fibril_mutex_unlock(&devcon->comm_area_lock);
+        
+        return rc;
 }
 
@@ -912 +939 @@
                 printf("Error %d reading %zu blocks starting at block %" PRIuOFF64
                     " from device handle %" PRIun "\n", rc, cnt, ba,
-                    devcon->devmap_handle);
+                    devcon->service_id);
 #ifndef NDEBUG
                 stacktrace_print();
@@ -941 +968 @@
         if (rc != EOK) {
                 printf("Error %d writing %zu blocks starting at block %" PRIuOFF64
-                    " to device handle %" PRIun "\n", rc, cnt, ba, devcon->devmap_handle);
+                    " to device handle %" PRIun "\n", rc, cnt, ba, devcon->service_id);
 #ifndef NDEBUG
                 stacktrace_print();
@@ -981 +1008 @@
 }
 
+/** Get TOC from block device. */
+static int read_toc(async_sess_t *sess, uint8_t session)
+{
+        async_exch_t *exch = async_exchange_begin(sess);
+        int rc = async_req_1_0(exch, BD_READ_TOC, session);
+        async_exchange_end(exch);
+
+        return rc;
+}
+
 /** Convert logical block address to physical block address. */
 static aoff64_t ba_ltop(devcon_t *devcon, aoff64_t lba)