Changeset 215 for trunk/hal/x86_64/drivers

Timestamp:

Jul 17, 2017, 1:41:13 PM (7 years ago)

Author:

max@…

Message:

rename the ATA driver

Location:

trunk/hal/x86_64/drivers

Files:

• ioc_ata.c (moved) (moved from trunk/hal/x86_64/drivers/soclib_bdv.c) (5 diffs)
• ioc_ata.h (moved) (moved from trunk/hal/x86_64/drivers/soclib_bdv.h) (2 diffs)

trunk/hal/x86_64/drivers/ioc_ata.c

@@ -1 +1 @@
 /*
- * soclib_bdv.c - soclib simple block device driver implementation.
- *
- * Author     Alain Greiner (2016)
- *
- * Copyright (c) UPMC Sorbonne Universites
+ * ioc_ata.c - ATA driver implementation
+ *
+ * Copyright (c) 2017 Maxime Villard
  *
  * This file is part of ALMOS-MKH.
  *
- * ALMOS-MKH.is free software; you can redistribute it and/or modify it
+ * ALMOS-MKH is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by
  * the Free Software Foundation; version 2.0 of the License.
  *
- * ALMOS-MKH.is distributed in the hope that it will be useful, but
+ * ALMOS-MKH is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
@@ -18 +16 @@
  *
  * You should have received a copy of the GNU General Public License
- * along with ALMOS-MKH.; if not, write to the Free Software Foundation,
+ * along with ALMOS-MKH; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
@@ -24 +22 @@
 #include <chdev.h>
 #include <dev_ioc.h>
-#include <soclib_bdv.h>
+#include <hal_drivers.h>
 #include <thread.h>
 #include <spinlock.h>
@@ -176 +174 @@
 /* -------------------------------------------------------------------------- */
 
-void soclib_bdv_init(chdev_t *chdev)
-{
-        chdev->cmd = &soclib_bdv_cmd;
-        chdev->isr = &soclib_bdv_isr;
+static void ioc_ata_cmd(xptr_t th_xp);
+static void ioc_ata_isr(chdev_t *chdev);
+
+void ioc_ata_init(chdev_t *chdev)
+{
+        chdev->cmd = &ioc_ata_cmd;
+        chdev->isr = &ioc_ata_isr;
         ata_init();
 }
 
-void __attribute__ ((noinline)) soclib_bdv_cmd( xptr_t th_xp )
+static void ioc_ata_cmd(xptr_t th_xp)
 {
         uint32_t   cmd_type;     // IOC_READ / IOC_WRITE / IOC_SYNC_READ
@@ -216 +217 @@
 }
 
-void __attribute__ ((noinline)) soclib_bdv_isr( chdev_t * chdev )
+static void ioc_ata_isr(chdev_t *chdev)
 {
         x86_panic((char *)__func__);

trunk/hal/x86_64/drivers/ioc_ata.h

@@ -1 +1 @@
 /*
- * soclib_bdv.h - SOCLIB_BDV (simple block device) driver definition.
+ * ioc_ata.c - ATA driver definitions
  *
- * Author    Alain Greiner
- *
- * Copyright (c) UPMC Sorbonne Universites
+ * Copyright (c) 2017 Maxime Villard
  *
  * This file is part of ALMOS-MKH.
@@ -22 +20 @@
  */
 
-#ifndef _SOCLIB_BDV_H_
-#define _SOCLIB_BDV_H_
+#ifndef _IOC_ATA_H_
+#define _IOC_ATA_H_
 
 #include <chdev.h>
 #include <hal_types.h>
 
-/********************************************************************************************
- * This driver supports the SocLib VciBlockDevice component, that is a simgle channel,
- * block oriented, external storage controler, supporting only one I/O transaction,
- * at a given time.
- *******************************************************************************************/
+void ioc_ata_init(chdev_t *chdev);
 
-/********************************************************************************************
- *       SOCLIB_BDV registers offset 
- *******************************************************************************************/
-
-enum SoclibBlockDeviceRegisters
-{
-    BDV_BUFFER_REG     = 0,
-    BDV_LBA_REG        = 1,
-    BDV_COUNT_REG      = 2,
-    BDV_OP_REG         = 3,
-    BDV_STATUS_REG         = 4,
-    BDV_IRQ_ENABLE_REG = 5,
-    BDV_SIZE_REG       = 6,
-    BDV_BLOCK_SIZE_REG = 7,
-    BDV_BUFFER_EXT_REG = 8,
-};
-
-/********************************************************************************************
- *       SOCLIB_BDV status values
- *******************************************************************************************/
-
-#define BDV_IDLE                0
-#define BDV_BUSY                1
-#define BDV_READ_SUCCESS        2
-#define BDV_WRITE_SUCCESS       3
-#define BDV_READ_ERROR      4
-#define BDV_WRITE_ERROR     5
-#define BDV_ERROR               6
-
-/********************************************************************************************
- *        SOCLIB_BDV operations 
- *******************************************************************************************/
-
-#define BDV_OP_NOP          0
-#define BDV_OP_READ         1
-#define BDV_OP_WRITE        2
-
-/********************************************************************************************
- * This function access the SOCLIB_BDV hardware registers to get the block size and the
- * number of blocks, and initialises the "extension" field of the IOC device descriptor.
- ********************************************************************************************
- * @ chdev     : local pointer on the generic IOC chdev descriptor.
- *******************************************************************************************/
-extern void soclib_bdv_init( chdev_t * chdev );
-
-/********************************************************************************************
- * This function is called by the server thread associated to the IOC device.
- * It decode the IOC device command embedded in the calling thread descriptor,
- * (format defined in the dev_ioc.h file) and starts execution of this generic command, 
- * accessing the relevant SOCLIB_BDV hardware registers.
- * Then it blocks on the THREAD_BLOCKED_DEV_ISR and deschedule, because the SOCLIB_BDV 
- * device cannot register several commands. It is re-activated by the ISR signaling the
- * I/O operation completion.
- ********************************************************************************************
- * @ thread_xp  : extended pointer on the client thread.
- *******************************************************************************************/
-extern void soclib_bdv_cmd( xptr_t thread_xp );
-
-/********************************************************************************************
- * This Interrupt Service Routine is executed when the IRQ signaling the completion of 
- * an IOC command is received by a core. It acknowledge the IRQ by accessing the proper
- * SOCLIB_BDV register, unblock the client thread, and unblock the server thread that
- * can starts execution of a new command if the waiting queue is not emppty.
- ********************************************************************************************
- * @ chdev     : local pointer on the generic IOC device descriptor.
- *******************************************************************************************/
-extern void soclib_bdv_isr( chdev_t * chdev );
-
-
-#endif /* _BLOCK_H_ */
+#endif /* _IOC_ATA_ */