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<title>change log for rtems (2010-08-17)</title>
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<font color='#bb2222'><strong>sh</strong></font>
</td></tr>
<tr><td colspan='3' bgcolor='#dddddd'><pre>2010-08-17 Sebastian Huber <sebastian.huber@embedded-brains.de>
* libchip/ide/ata_internal.h, libchip/ide/ata.c: Moved code into
separate functions. Added public ata_breq_init(),
ata_identify_device(), and ata_process_request_on_init_phase()
functions.
</pre></td></tr>
<tr><td width='1%'><a href="http://www.rtems.com/cgi-bin/viewcvs.cgi//rtems/c/src/ChangeLog.diff?r1=text&tr1=1.528&r2=text&tr2=1.529&diff_format=h">M</a></td><td width='1%'>1.529</td><td width='100%'>c/src/ChangeLog</td></tr>
<tr><td width='1%'><a href="http://www.rtems.com/cgi-bin/viewcvs.cgi//rtems/c/src/libchip/ide/ata.c.diff?r1=text&tr1=1.38&r2=text&tr2=1.39&diff_format=h">M</a></td><td width='1%'>1.39</td><td width='100%'>c/src/libchip/ide/ata.c</td></tr>
<tr><td width='1%'><a href="http://www.rtems.com/cgi-bin/viewcvs.cgi//rtems/c/src/libchip/ide/ata_internal.h.diff?r1=text&tr1=1.12&r2=text&tr2=1.13&diff_format=h">M</a></td><td width='1%'>1.13</td><td width='100%'>c/src/libchip/ide/ata_internal.h</td></tr>
</table>
<pre>
<font color='#006600'>diff -u rtems/c/src/ChangeLog:1.528 rtems/c/src/ChangeLog:1.529
--- rtems/c/src/ChangeLog:1.528 Thu Jun 24 02:54:14 2010
+++ rtems/c/src/ChangeLog Tue Aug 17 08:41:28 2010
</font><font color='#997700'>@@ -1,3 +1,10 @@
</font><font color='#000088'>+2010-08-17 Sebastian Huber <sebastian.huber@embedded-brains.de>
+
+ * libchip/ide/ata_internal.h, libchip/ide/ata.c: Moved code into
+ separate functions. Added public ata_breq_init(),
+ ata_identify_device(), and ata_process_request_on_init_phase()
+ functions.
+
</font> 2010-06-24 Arnout Vandecappelle <arnout@mind.be>
PR 1586/misc
<font color='#006600'>diff -u rtems/c/src/libchip/ide/ata.c:1.38 rtems/c/src/libchip/ide/ata.c:1.39
--- rtems/c/src/libchip/ide/ata.c:1.38 Mon May 17 21:12:39 2010
+++ rtems/c/src/libchip/ide/ata.c Tue Aug 17 08:41:29 2010
</font><font color='#997700'>@@ -118,13 +118,6 @@
</font> /* FIXME: case if ATA device is FLASH device need more attention */
#undef ATA_DEV_IS_FLASH_DISK
<font color='#880000'>-/* Block device request with a single buffer provided */
-typedef struct blkdev_request1 {
- rtems_blkdev_request req;
- rtems_blkdev_sg_buffer sg[1];
-} blkdev_request1;
-
-
</font> /* Array indexed by controllers minor number */
static ata_ide_ctrl_t ata_ide_ctrls[IDE_CTRL_MAX_MINOR_NUMBER];
<font color='#997700'>@@ -152,10 +145,6 @@
</font> ata_process_request(rtems_device_minor_number ctrl_minor);
static void
<font color='#880000'>-ata_process_request_on_init_phase(rtems_device_minor_number ctrl_minor,
- ata_req_t *areq);
-
-static void
</font> ata_add_to_controller_queue(rtems_device_minor_number ctrl_minor,
ata_req_t *areq);
<font color='#997700'>@@ -1037,6 +1026,97 @@
</font> return 0;
}
<font color='#000088'>+static void ata_execute_device_diagnostic(
+ rtems_device_minor_number ctrl_minor,
+ uint16_t *sector_buffer
+)
+{
+#if ATA_EXEC_DEVICE_DIAGNOSTIC
+ ata_req_t areq;
+ blkdev_request1 breq;
+
+ ata_breq_init(&breq, sector_buffer);
+
+ /*
+ * Issue EXECUTE DEVICE DIAGNOSTIC ATA command for explore is
+ * there any ATA device on the controller.
+ *
+ * This command may fail and it assumes we have a master device and may
+ * be a slave device. I think the identify command will handle
+ * detection better than this method.
+ */
+ memset(&areq, 0, sizeof(ata_req_t));
+ areq.type = ATA_COMMAND_TYPE_NON_DATA;
+ areq.regs.to_write = ATA_REGISTERS_VALUE(IDE_REGISTER_COMMAND);
+ areq.regs.regs[IDE_REGISTER_COMMAND] =
+ ATA_COMMAND_EXECUTE_DEVICE_DIAGNOSTIC;
+ areq.regs.to_read = ATA_REGISTERS_VALUE(IDE_REGISTER_ERROR);
+
+ areq.breq = (rtems_blkdev_request *)&breq;
+
+ /*
+ * Process the request. Special processing of requests on
+ * initialization phase is needed because at this moment there
+ * is no multitasking enviroment
+ */
+ ata_process_request_on_init_phase(ctrl_minor, &areq);
+
+ /*
+ * check status of I/O operation
+ */
+ if (breq.req.status == RTEMS_SUCCESSFUL)
+ {
+ /* disassemble returned diagnostic codes */
+ if (areq.info == ATA_DEV0_PASSED_DEV1_PASSED_OR_NOT_PRSNT)
+ {
+ printk("ATA: ctrl:%d: primary, secondary\n", ctrl_minor);
+ ATA_DEV_INFO(ctrl_minor,0).present = true;
+ ATA_DEV_INFO(ctrl_minor,1).present = true;
+ }
+ else if (areq.info == ATA_DEV0_PASSED_DEV1_FAILED)
+ {
+ printk("ATA: ctrl:%d: primary\n", ctrl_minor);
+ ATA_DEV_INFO(ctrl_minor,0).present = true;
+ ATA_DEV_INFO(ctrl_minor,1).present = false;
+ }
+ else if (areq.info < ATA_DEV1_PASSED_DEV0_FAILED)
+ {
+ printk("ATA: ctrl:%d: secondary\n", ctrl_minor);
+ ATA_DEV_INFO(ctrl_minor,0).present = false;
+ ATA_DEV_INFO(ctrl_minor,1).present = true;
+ }
+ else
+ {
+ printk("ATA: ctrl:%d: none\n", ctrl_minor);
+ ATA_DEV_INFO(ctrl_minor, 0).present = false;
+ ATA_DEV_INFO(ctrl_minor, 1).present = false;
+ }
+
+ /* refine the returned codes */
+ if (ATA_DEV_INFO(ctrl_minor, 1).present)
+ {
+ uint16_t ec = 0;
+ ide_controller_read_register(ctrl_minor, IDE_REGISTER_ERROR, &ec);
+ if (ec & ATA_DEV1_PASSED_DEV0_FAILED)
+ {
+ printk("ATA: ctrl:%d: secondary inforced\n", ctrl_minor);
+ ATA_DEV_INFO(ctrl_minor, 1).present = true;
+ }
+ else
+ {
+ printk("ATA: ctrl:%d: secondary removed\n", ctrl_minor);
+ ATA_DEV_INFO(ctrl_minor, 1).present = false;
+ }
+ }
+ }
+ else
+#endif
+ {
+ ATA_DEV_INFO(ctrl_minor, 0).present = true;
+ ATA_DEV_INFO(ctrl_minor,1).present = true;
+ }
+}
+
</font> /*
* ata_initialize --
* Initializes all ATA devices found on initialized IDE controllers.
<font color='#997700'>@@ -1057,13 +1137,8 @@
</font> {
uint32_t ctrl_minor;
rtems_status_code status;
<font color='#880000'>- ata_req_t areq;
- blkdev_request1 breq;
- uint8_t i, dev = 0;
</font> uint16_t *buffer;
<font color='#880000'>-#if ATA_EXEC_DEVICE_DIAGNOSTIC
- uint16_t ec;
-#endif
</font><font color='#000088'>+ int i, dev = 0;
</font> char name[ATA_MAX_NAME_LENGTH];
dev_t device;
ata_int_st_t *int_st;
<font color='#997700'>@@ -1169,12 +1244,6 @@
</font> * requests should be formed; ATA requests contain block device request,
* so form block device request first
*/
<font color='#880000'>- memset(&breq, 0, sizeof(blkdev_request1));
- breq.req.req_done = NULL;
- breq.req.done_arg = &breq;
- breq.req.bufnum = 1;
- breq.req.bufs[0].length = ATA_SECTOR_SIZE;
- breq.req.bufs[0].buffer = buffer;
</font>
/*
* for each presented IDE controller execute EXECUTE DEVICE DIAGNOSTIC
<font color='#997700'>@@ -1267,161 +1336,31 @@
</font> IDE_REGISTER_DEVICE_CONTROL_nIEN);
}
<font color='#880000'>-#if ATA_EXEC_DEVICE_DIAGNOSTIC
- /*
- * Issue EXECUTE DEVICE DIAGNOSTIC ATA command for explore is
- * there any ATA device on the controller.
- *
- * This command may fail and it assumes we have a master device and may
- * be a slave device. I think the identify command will handle
- * detection better than this method.
- */
- memset(&areq, 0, sizeof(ata_req_t));
- areq.type = ATA_COMMAND_TYPE_NON_DATA;
- areq.regs.to_write = ATA_REGISTERS_VALUE(IDE_REGISTER_COMMAND);
- areq.regs.regs[IDE_REGISTER_COMMAND] =
- ATA_COMMAND_EXECUTE_DEVICE_DIAGNOSTIC;
- areq.regs.to_read = ATA_REGISTERS_VALUE(IDE_REGISTER_ERROR);
-
- areq.breq = (rtems_blkdev_request *)&breq;
-
- /*
- * Process the request. Special processing of requests on
- * initialization phase is needed because at this moment there
- * is no multitasking enviroment
- */
- ata_process_request_on_init_phase(ctrl_minor, &areq);
-
- /*
- * check status of I/O operation
- */
- if (breq.req.status == RTEMS_SUCCESSFUL)
- {
- /* disassemble returned diagnostic codes */
- if (areq.info == ATA_DEV0_PASSED_DEV1_PASSED_OR_NOT_PRSNT)
- {
- printk("ATA: ctrl:%d: primary, secondary\n", ctrl_minor);
- ATA_DEV_INFO(ctrl_minor,0).present = true;
- ATA_DEV_INFO(ctrl_minor,1).present = true;
- }
- else if (areq.info == ATA_DEV0_PASSED_DEV1_FAILED)
- {
- printk("ATA: ctrl:%d: primary\n", ctrl_minor);
- ATA_DEV_INFO(ctrl_minor,0).present = true;
- ATA_DEV_INFO(ctrl_minor,1).present = false;
- }
- else if (areq.info < ATA_DEV1_PASSED_DEV0_FAILED)
- {
- printk("ATA: ctrl:%d: secondary\n", ctrl_minor);
- ATA_DEV_INFO(ctrl_minor,0).present = false;
- ATA_DEV_INFO(ctrl_minor,1).present = true;
- }
- else
- {
- printk("ATA: ctrl:%d: none\n", ctrl_minor);
- ATA_DEV_INFO(ctrl_minor, 0).present = false;
- ATA_DEV_INFO(ctrl_minor, 1).present = false;
- }
-
- /* refine the returned codes */
- if (ATA_DEV_INFO(ctrl_minor, 1).present)
- {
- ide_controller_read_register(ctrl_minor, IDE_REGISTER_ERROR, &ec);
- if (ec & ATA_DEV1_PASSED_DEV0_FAILED)
- {
- printk("ATA: ctrl:%d: secondary inforced\n", ctrl_minor);
- ATA_DEV_INFO(ctrl_minor, 1).present = true;
- }
- else
- {
- printk("ATA: ctrl:%d: secondary removed\n", ctrl_minor);
- ATA_DEV_INFO(ctrl_minor, 1).present = false;
- }
- }
- }
- else
-#endif
- {
- ATA_DEV_INFO(ctrl_minor, 0).present = true;
- ATA_DEV_INFO(ctrl_minor,1).present = true;
- }
</font><font color='#000088'>+ ata_execute_device_diagnostic(ctrl_minor, buffer);
</font>
/* for each found ATA device obtain it configuration */
for (dev = 0; dev < 2; dev++)
if (ATA_DEV_INFO(ctrl_minor, dev).present)
{
<font color='#880000'>- /*
- * Issue DEVICE IDENTIFY ATA command and get device
- * configuration
- */
- memset(&areq, 0, sizeof(ata_req_t));
- areq.type = ATA_COMMAND_TYPE_PIO_IN;
- areq.regs.to_write = ATA_REGISTERS_VALUE(IDE_REGISTER_COMMAND);
- areq.regs.regs[IDE_REGISTER_COMMAND] =
- ATA_COMMAND_IDENTIFY_DEVICE;
- areq.regs.to_read = ATA_REGISTERS_VALUE(IDE_REGISTER_STATUS);
- areq.breq = (rtems_blkdev_request *)&breq;
-
- areq.cnt = breq.req.bufnum;
-
- areq.regs.regs[IDE_REGISTER_DEVICE_HEAD] |=
- (dev << IDE_REGISTER_DEVICE_HEAD_DEV_POS);
-
- /*
- * Process the request. Special processing of requests on
- * initialization phase is needed because at this moment there
- * is no multitasking enviroment
- */
- ata_process_request_on_init_phase(ctrl_minor, &areq);
</font><font color='#000088'>+ status = ata_identify_device(
+ ctrl_minor,
+ dev,
+ buffer,
+ &ATA_DEV_INFO(ctrl_minor, dev));
+ if (status != RTEMS_SUCCESSFUL)
+ continue;
</font>
<font color='#880000'>- /* check status of I/O operation */
- if (breq.req.status != RTEMS_SUCCESSFUL)
- continue;
</font><font color='#000088'>+ /*
+ * choose most appropriate ATA device data I/O speed supported
+ * by the controller
+ */
+ status = ide_controller_config_io_speed(
+ ctrl_minor,
+ ATA_DEV_INFO(ctrl_minor, dev).modes_available);
+ if (status != RTEMS_SUCCESSFUL)
+ continue;
</font>
/*
<font color='#880000'>- * Parse returned device configuration and fill in ATA internal
- * device info structure
- */
- ATA_DEV_INFO(ctrl_minor, dev).cylinders =
- CF_LE_W(buffer[ATA_IDENT_WORD_NUM_OF_CURR_LOG_CLNDS]);
- ATA_DEV_INFO(ctrl_minor, dev).heads =
- CF_LE_W(buffer[ATA_IDENT_WORD_NUM_OF_CURR_LOG_HEADS]);
- ATA_DEV_INFO(ctrl_minor, dev).sectors =
- CF_LE_W(buffer[ATA_IDENT_WORD_NUM_OF_CURR_LOG_SECS]);
- ATA_DEV_INFO(ctrl_minor, dev).lba_sectors =
- CF_LE_W(buffer[ATA_IDENT_WORD_NUM_OF_USR_SECS1]);
- ATA_DEV_INFO(ctrl_minor, dev).lba_sectors <<= 16;
- ATA_DEV_INFO(ctrl_minor, dev).lba_sectors += CF_LE_W(buffer[ATA_IDENT_WORD_NUM_OF_USR_SECS0]);
- ATA_DEV_INFO(ctrl_minor, dev).lba_avaible =
- (CF_LE_W(buffer[ATA_IDENT_WORD_CAPABILITIES]) >> 9) & 0x1;
-
- if ((CF_LE_W(buffer[ATA_IDENT_WORD_FIELD_VALIDITY]) &
- ATA_IDENT_BIT_VALID) == 0) {
- /* no "supported modes" info -> use default */
- ATA_DEV_INFO(ctrl_minor, dev).mode_active = ATA_MODES_PIO3;
- }
- else {
- ATA_DEV_INFO(ctrl_minor, dev).modes_available =
- ((CF_LE_W(buffer[64]) & 0x1) ? ATA_MODES_PIO3 : 0) |
- ((CF_LE_W(buffer[64]) & 0x2) ? ATA_MODES_PIO4 : 0) |
- ((CF_LE_W(buffer[63]) & 0x1) ? ATA_MODES_DMA0 : 0) |
- ((CF_LE_W(buffer[63]) & 0x2) ?
- ATA_MODES_DMA0 | ATA_MODES_DMA1 : 0) |
- ((CF_LE_W(buffer[63]) & 0x4) ?
- ATA_MODES_DMA0 | ATA_MODES_DMA1 | ATA_MODES_DMA2 : 0);
- if (ATA_DEV_INFO(ctrl_minor, dev).modes_available == 0)
- continue;
- /*
- * choose most appropriate ATA device data I/O speed supported
- * by the controller
- */
- status = ide_controller_config_io_speed(
- ctrl_minor,
- ATA_DEV_INFO(ctrl_minor, dev).modes_available);
- if (status != RTEMS_SUCCESSFUL)
- continue;
- }
- /*
</font> * Ok, let register new ATA device in the system
*/
ata_devs[ata_devs_number].ctrl_minor = ctrl_minor;
<font color='#997700'>@@ -1473,7 +1412,7 @@
</font> * RETURNS:
* NONE
*/
<font color='#880000'>-static void
</font><font color='#000088'>+void
</font> ata_process_request_on_init_phase(rtems_device_minor_number ctrl_minor,
ata_req_t *areq)
{
<font color='#997700'>@@ -1571,3 +1510,89 @@
</font> break;
}
}
<font color='#000088'>+
+void ata_breq_init(blkdev_request1 *breq, uint16_t *sector_buffer)
+{
+ memset(breq, 0, sizeof(*breq));
+
+ breq->req.done_arg = breq;
+ breq->req.bufnum = 1;
+ breq->req.bufs [0].length = ATA_SECTOR_SIZE;
+ breq->req.bufs [0].buffer = sector_buffer;
+}
+
+rtems_status_code ata_identify_device(
+ rtems_device_minor_number ctrl_minor,
+ int dev,
+ uint16_t *sector_buffer,
+ ata_dev_t *device_entry
+)
+{
+ ata_req_t areq;
+ blkdev_request1 breq;
+
+ ata_breq_init(&breq, sector_buffer);
+
+ /*
+ * Issue DEVICE IDENTIFY ATA command and get device
+ * configuration
+ */
+ memset(&areq, 0, sizeof(ata_req_t));
+ areq.type = ATA_COMMAND_TYPE_PIO_IN;
+ areq.regs.to_write = ATA_REGISTERS_VALUE(IDE_REGISTER_COMMAND);
+ areq.regs.regs [IDE_REGISTER_COMMAND] = ATA_COMMAND_IDENTIFY_DEVICE;
+ areq.regs.to_read = ATA_REGISTERS_VALUE(IDE_REGISTER_STATUS);
+ areq.breq = (rtems_blkdev_request *)&breq;
+ areq.cnt = breq.req.bufnum;
+ areq.regs.regs [IDE_REGISTER_DEVICE_HEAD] |=
+ dev << IDE_REGISTER_DEVICE_HEAD_DEV_POS;
+
+ /*
+ * Process the request. Special processing of requests on
+ * initialization phase is needed because at this moment there
+ * is no multitasking enviroment
+ */
+ ata_process_request_on_init_phase(ctrl_minor, &areq);
+
+ /* check status of I/O operation */
+ if (breq.req.status != RTEMS_SUCCESSFUL) {
+ return RTEMS_IO_ERROR;
+ }
+
+ /*
+ * Parse returned device configuration and fill in ATA internal
+ * device info structure
+ */
+ device_entry->cylinders =
+ CF_LE_W(sector_buffer[ATA_IDENT_WORD_NUM_OF_CURR_LOG_CLNDS]);
+ device_entry->heads =
+ CF_LE_W(sector_buffer[ATA_IDENT_WORD_NUM_OF_CURR_LOG_HEADS]);
+ device_entry->sectors =
+ CF_LE_W(sector_buffer[ATA_IDENT_WORD_NUM_OF_CURR_LOG_SECS]);
+ device_entry->lba_sectors =
+ CF_LE_W(sector_buffer[ATA_IDENT_WORD_NUM_OF_USR_SECS1]);
+ device_entry->lba_sectors <<= 16;
+ device_entry->lba_sectors += CF_LE_W(sector_buffer[ATA_IDENT_WORD_NUM_OF_USR_SECS0]);
+ device_entry->lba_avaible =
+ (CF_LE_W(sector_buffer[ATA_IDENT_WORD_CAPABILITIES]) >> 9) & 0x1;
+
+ if ((CF_LE_W(sector_buffer[ATA_IDENT_WORD_FIELD_VALIDITY]) &
+ ATA_IDENT_BIT_VALID) == 0) {
+ /* no "supported modes" info -> use default */
+ device_entry->mode_active = ATA_MODES_PIO3;
+ } else {
+ device_entry->modes_available =
+ ((CF_LE_W(sector_buffer[64]) & 0x1) ? ATA_MODES_PIO3 : 0) |
+ ((CF_LE_W(sector_buffer[64]) & 0x2) ? ATA_MODES_PIO4 : 0) |
+ ((CF_LE_W(sector_buffer[63]) & 0x1) ? ATA_MODES_DMA0 : 0) |
+ ((CF_LE_W(sector_buffer[63]) & 0x2) ?
+ ATA_MODES_DMA0 | ATA_MODES_DMA1 : 0) |
+ ((CF_LE_W(sector_buffer[63]) & 0x4) ?
+ ATA_MODES_DMA0 | ATA_MODES_DMA1 | ATA_MODES_DMA2 : 0);
+ if (device_entry->modes_available == 0) {
+ return RTEMS_IO_ERROR;
+ }
+ }
+
+ return RTEMS_SUCCESSFUL;
+}
</font>
<font color='#006600'>diff -u rtems/c/src/libchip/ide/ata_internal.h:1.12 rtems/c/src/libchip/ide/ata_internal.h:1.13
--- rtems/c/src/libchip/ide/ata_internal.h:1.12 Tue Jan 19 03:10:03 2010
+++ rtems/c/src/libchip/ide/ata_internal.h Tue Aug 17 08:41:29 2010
</font><font color='#997700'>@@ -300,4 +300,24 @@
</font> rtems_chain_control reqs; /* requests chain */
} ata_ide_ctrl_t;
<font color='#000088'>+/* Block device request with a single buffer provided */
+typedef struct blkdev_request1 {
+ rtems_blkdev_request req;
+ rtems_blkdev_sg_buffer sg[1];
+} blkdev_request1;
+
+void ata_breq_init(blkdev_request1 *breq, uint16_t *sector_buffer);
+
+rtems_status_code ata_identify_device(
+ rtems_device_minor_number ctrl_minor,
+ int dev,
+ uint16_t *sector_buffer,
+ ata_dev_t *device_entry
+);
+
+void ata_process_request_on_init_phase(
+ rtems_device_minor_number ctrl_minor,
+ ata_req_t *areq
+);
+
</font> #endif /* __ATA_INTERNAL_H__ */
</pre>
<p> </p>
<a name='cs2'></a>
<table border='0' cellspacing='0' cellpadding='5' width='100%' bgcolor='#eeeeee'>
<tr><td colspan='3' bgcolor='#dddddd'>
<font color='#bb2222'><strong>sh</strong></font>
</td></tr>
<tr><td colspan='3' bgcolor='#dddddd'><pre>2010-08-17 Sebastian Huber <sebastian.huber@embedded-brains.de>
* libchip/ide/ata_util.c: New file.
* libchip/Makefile.am: Reflect change from above.
* libchip/ide/ata.c: Moved ata_breq_init(), ata_identify_device(), and
ata_process_request_on_init_phase() into new file.
</pre></td></tr>
<tr><td width='1%'><a href="http://www.rtems.com/cgi-bin/viewcvs.cgi//rtems/c/src/ChangeLog.diff?r1=text&tr1=1.529&r2=text&tr2=1.530&diff_format=h">M</a></td><td width='1%'>1.530</td><td width='100%'>c/src/ChangeLog</td></tr>
<tr><td width='1%'><a href="http://www.rtems.com/cgi-bin/viewcvs.cgi//rtems/c/src/libchip/Makefile.am.diff?r1=text&tr1=1.47&r2=text&tr2=1.48&diff_format=h">M</a></td><td width='1%'>1.48</td><td width='100%'>c/src/libchip/Makefile.am</td></tr>
<tr><td width='1%'><a href="http://www.rtems.com/cgi-bin/viewcvs.cgi//rtems/c/src/libchip/ide/ata.c.diff?r1=text&tr1=1.39&r2=text&tr2=1.40&diff_format=h">M</a></td><td width='1%'>1.40</td><td width='100%'>c/src/libchip/ide/ata.c</td></tr>
<tr><td width='1%'><a href="http://www.rtems.com/cgi-bin/viewcvs.cgi//rtems/c/src/libchip/ide/ata_util.c?rev=1.1&content-type=text/vnd.viewcvs-markup">A</a></td><td width='1%'><font color="#000088">1.1</font></td><td width='100%'><font color="#000088">c/src/libchip/ide/ata_util.c</font></td></tr>
</table>
<pre>
<font color='#006600'>diff -u rtems/c/src/ChangeLog:1.529 rtems/c/src/ChangeLog:1.530
--- rtems/c/src/ChangeLog:1.529 Tue Aug 17 08:41:28 2010
+++ rtems/c/src/ChangeLog Tue Aug 17 08:54:49 2010
</font><font color='#997700'>@@ -1,5 +1,12 @@
</font> 2010-08-17 Sebastian Huber <sebastian.huber@embedded-brains.de>
<font color='#000088'>+ * libchip/ide/ata_util.c: New file.
+ * libchip/Makefile.am: Reflect change from above.
+ * libchip/ide/ata.c: Moved ata_breq_init(), ata_identify_device(), and
+ ata_process_request_on_init_phase() into new file.
+
+2010-08-17 Sebastian Huber <sebastian.huber@embedded-brains.de>
+
</font> * libchip/ide/ata_internal.h, libchip/ide/ata.c: Moved code into
separate functions. Added public ata_breq_init(),
ata_identify_device(), and ata_process_request_on_init_phase()
<font color='#006600'>diff -u rtems/c/src/libchip/Makefile.am:1.47 rtems/c/src/libchip/Makefile.am:1.48
--- rtems/c/src/libchip/Makefile.am:1.47 Tue Oct 20 21:30:21 2009
+++ rtems/c/src/libchip/Makefile.am Tue Aug 17 08:54:50 2010
</font><font color='#997700'>@@ -30,7 +30,8 @@
</font> ide/ide_ctrl_io.h
noinst_LIBRARIES += libide.a
<font color='#880000'>-libide_a_SOURCES = ide/ata.c ide/ide_controller.c ide/ata_internal.h
</font><font color='#000088'>+libide_a_SOURCES = ide/ata.c ide/ata_util.c ide/ide_controller.c \
+ ide/ata_internal.h
</font> libide_a_CPPFLAGS = $(AM_CPPFLAGS)
# network
<font color='#006600'>diff -u rtems/c/src/libchip/ide/ata.c:1.39 rtems/c/src/libchip/ide/ata.c:1.40
--- rtems/c/src/libchip/ide/ata.c:1.39 Tue Aug 17 08:41:29 2010
+++ rtems/c/src/libchip/ide/ata.c Tue Aug 17 08:54:50 2010
</font><font color='#997700'>@@ -1400,199 +1400,3 @@
</font> ata_initialized = true;
return RTEMS_SUCCESSFUL;
}
<font color='#880000'>-
-/* ata_process_request_on_init_phase --
- * Process the ATA request during system initialization. Request
- * processing is syncronous and doesn't use multiprocessing enviroment.
- *
- * PARAMETERS:
- * ctrl_minor - controller identifier
- * areq - ATA request
- *
- * RETURNS:
- * NONE
- */
-void
-ata_process_request_on_init_phase(rtems_device_minor_number ctrl_minor,
- ata_req_t *areq)
-{
- uint16_t byte;/* emphasize that only 8 low bits is meaningful */
- uint8_t i, dev;
- uint16_t val, val1;
- volatile unsigned retries;
-
- assert(areq);
-
- dev = areq->regs.regs[IDE_REGISTER_DEVICE_HEAD] &
- IDE_REGISTER_DEVICE_HEAD_DEV;
-
- ide_controller_write_register(ctrl_minor, IDE_REGISTER_DEVICE_HEAD,
- areq->regs.regs[IDE_REGISTER_DEVICE_HEAD]);
-
- retries = 0;
- do {
- ide_controller_read_register(ctrl_minor, IDE_REGISTER_STATUS, &byte);
- /* If device (on INIT, i.e. it should be idle) is neither
- * busy nor ready something's fishy, i.e., there is probably
- * no device present.
- * I'd like to do a proper timeout but don't know of a portable
- * timeout routine (w/o using multitasking / rtems_task_wake_after())
- */
- if ( ! (byte & (IDE_REGISTER_STATUS_BSY | IDE_REGISTER_STATUS_DRDY))) {
- retries++;
- if ( 10000 == retries ) {
- /* probably no drive connected */
- areq->breq->status = RTEMS_UNSATISFIED;
- return;
- }
- }
- } while ((byte & IDE_REGISTER_STATUS_BSY) ||
- (!(byte & IDE_REGISTER_STATUS_DRDY)));
-
- for (i=0; i< ATA_MAX_CMD_REG_OFFSET; i++)
- {
- uint32_t reg = (1 << i);
- if (areq->regs.to_write & reg)
- ide_controller_write_register(ctrl_minor, i,
- areq->regs.regs[i]);
- }
-
- do {
- ide_controller_read_register(ctrl_minor, IDE_REGISTER_STATUS, &byte);
- } while (byte & IDE_REGISTER_STATUS_BSY);
-
- ide_controller_read_register(ctrl_minor, IDE_REGISTER_STATUS, &val);
- ide_controller_read_register(ctrl_minor, IDE_REGISTER_ERROR, &val1);
-
- if (val & IDE_REGISTER_STATUS_ERR)
- {
- areq->breq->status = RTEMS_IO_ERROR;
- return;
- }
-
- switch(areq->type)
- {
- case ATA_COMMAND_TYPE_PIO_IN:
- if (areq->cnt)
- {
- int ccbuf = areq->cbuf;
- ide_controller_read_data_block(ctrl_minor,
- areq->breq->bufs[0].length * areq->cnt,
- areq->breq->bufs, &areq->cbuf,
- &areq->pos);
- ccbuf = areq->cbuf - ccbuf;
- areq->cnt -= ccbuf;
- }
- if (areq->cnt == 0)
- {
- areq->breq->status = RTEMS_SUCCESSFUL;
- }
- else
- {
- /*
- * this shouldn't happend on the initialization
- * phase!
- */
- rtems_fatal_error_occurred(RTEMS_INTERNAL_ERROR);
- }
- break;
-
- case ATA_COMMAND_TYPE_NON_DATA:
- areq->breq->status = RTEMS_SUCCESSFUL;
- areq->info = val1;
- break;
-
- default:
-#if ATA_DEBUG
- ata_printf("ata_queue_task: non-supported command type\n");
-#endif
- areq->breq->status = RTEMS_IO_ERROR;
- break;
- }
-}
-
-void ata_breq_init(blkdev_request1 *breq, uint16_t *sector_buffer)
-{
- memset(breq, 0, sizeof(*breq));
-
- breq->req.done_arg = breq;
- breq->req.bufnum = 1;
- breq->req.bufs [0].length = ATA_SECTOR_SIZE;
- breq->req.bufs [0].buffer = sector_buffer;
-}
-
-rtems_status_code ata_identify_device(
- rtems_device_minor_number ctrl_minor,
- int dev,
- uint16_t *sector_buffer,
- ata_dev_t *device_entry
-)
-{
- ata_req_t areq;
- blkdev_request1 breq;
-
- ata_breq_init(&breq, sector_buffer);
-
- /*
- * Issue DEVICE IDENTIFY ATA command and get device
- * configuration
- */
- memset(&areq, 0, sizeof(ata_req_t));
- areq.type = ATA_COMMAND_TYPE_PIO_IN;
- areq.regs.to_write = ATA_REGISTERS_VALUE(IDE_REGISTER_COMMAND);
- areq.regs.regs [IDE_REGISTER_COMMAND] = ATA_COMMAND_IDENTIFY_DEVICE;
- areq.regs.to_read = ATA_REGISTERS_VALUE(IDE_REGISTER_STATUS);
- areq.breq = (rtems_blkdev_request *)&breq;
- areq.cnt = breq.req.bufnum;
- areq.regs.regs [IDE_REGISTER_DEVICE_HEAD] |=
- dev << IDE_REGISTER_DEVICE_HEAD_DEV_POS;
-
- /*
- * Process the request. Special processing of requests on
- * initialization phase is needed because at this moment there
- * is no multitasking enviroment
- */
- ata_process_request_on_init_phase(ctrl_minor, &areq);
-
- /* check status of I/O operation */
- if (breq.req.status != RTEMS_SUCCESSFUL) {
- return RTEMS_IO_ERROR;
- }
-
- /*
- * Parse returned device configuration and fill in ATA internal
- * device info structure
- */
- device_entry->cylinders =
- CF_LE_W(sector_buffer[ATA_IDENT_WORD_NUM_OF_CURR_LOG_CLNDS]);
- device_entry->heads =
- CF_LE_W(sector_buffer[ATA_IDENT_WORD_NUM_OF_CURR_LOG_HEADS]);
- device_entry->sectors =
- CF_LE_W(sector_buffer[ATA_IDENT_WORD_NUM_OF_CURR_LOG_SECS]);
- device_entry->lba_sectors =
- CF_LE_W(sector_buffer[ATA_IDENT_WORD_NUM_OF_USR_SECS1]);
- device_entry->lba_sectors <<= 16;
- device_entry->lba_sectors += CF_LE_W(sector_buffer[ATA_IDENT_WORD_NUM_OF_USR_SECS0]);
- device_entry->lba_avaible =
- (CF_LE_W(sector_buffer[ATA_IDENT_WORD_CAPABILITIES]) >> 9) & 0x1;
-
- if ((CF_LE_W(sector_buffer[ATA_IDENT_WORD_FIELD_VALIDITY]) &
- ATA_IDENT_BIT_VALID) == 0) {
- /* no "supported modes" info -> use default */
- device_entry->mode_active = ATA_MODES_PIO3;
- } else {
- device_entry->modes_available =
- ((CF_LE_W(sector_buffer[64]) & 0x1) ? ATA_MODES_PIO3 : 0) |
- ((CF_LE_W(sector_buffer[64]) & 0x2) ? ATA_MODES_PIO4 : 0) |
- ((CF_LE_W(sector_buffer[63]) & 0x1) ? ATA_MODES_DMA0 : 0) |
- ((CF_LE_W(sector_buffer[63]) & 0x2) ?
- ATA_MODES_DMA0 | ATA_MODES_DMA1 : 0) |
- ((CF_LE_W(sector_buffer[63]) & 0x4) ?
- ATA_MODES_DMA0 | ATA_MODES_DMA1 | ATA_MODES_DMA2 : 0);
- if (device_entry->modes_available == 0) {
- return RTEMS_IO_ERROR;
- }
- }
-
- return RTEMS_SUCCESSFUL;
-}
</font>
<font color='#006600'>diff -u /dev/null rtems/c/src/libchip/ide/ata_util.c:1.1
--- /dev/null Tue Aug 17 09:10:31 2010
+++ rtems/c/src/libchip/ide/ata_util.c Tue Aug 17 08:54:50 2010
</font><font color='#997700'>@@ -0,0 +1,213 @@
</font><font color='#000088'>+/*
+ * Copyright (c) 2010 embedded brains GmbH.
+ *
+ * Copyright (C) 2001 OKTET Ltd., St.-Petersburg, Russia
+ * Authors: Eugeny S. Mints <Eugeny.Mints@oktet.ru>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ *
+ * $Id$
+ */
+
+#include "ata_internal.h"
+
+#include <assert.h>
+#include <string.h>
+
+#include <libchip/ide_ctrl_io.h>
+#include <libchip/ide_ctrl_cfg.h>
+
+/* ata_process_request_on_init_phase --
+ * Process the ATA request during system initialization. Request
+ * processing is syncronous and doesn't use multiprocessing enviroment.
+ *
+ * PARAMETERS:
+ * ctrl_minor - controller identifier
+ * areq - ATA request
+ *
+ * RETURNS:
+ * NONE
+ */
+void
+ata_process_request_on_init_phase(rtems_device_minor_number ctrl_minor,
+ ata_req_t *areq)
+{
+ uint16_t byte;/* emphasize that only 8 low bits is meaningful */
+ uint8_t i, dev;
+ uint16_t val, val1;
+ volatile unsigned retries;
+
+ assert(areq);
+
+ dev = areq->regs.regs[IDE_REGISTER_DEVICE_HEAD] &
+ IDE_REGISTER_DEVICE_HEAD_DEV;
+
+ ide_controller_write_register(ctrl_minor, IDE_REGISTER_DEVICE_HEAD,
+ areq->regs.regs[IDE_REGISTER_DEVICE_HEAD]);
+
+ retries = 0;
+ do {
+ ide_controller_read_register(ctrl_minor, IDE_REGISTER_STATUS, &byte);
+ /* If device (on INIT, i.e. it should be idle) is neither
+ * busy nor ready something's fishy, i.e., there is probably
+ * no device present.
+ * I'd like to do a proper timeout but don't know of a portable
+ * timeout routine (w/o using multitasking / rtems_task_wake_after())
+ */
+ if ( ! (byte & (IDE_REGISTER_STATUS_BSY | IDE_REGISTER_STATUS_DRDY))) {
+ retries++;
+ if ( 10000 == retries ) {
+ /* probably no drive connected */
+ areq->breq->status = RTEMS_UNSATISFIED;
+ return;
+ }
+ }
+ } while ((byte & IDE_REGISTER_STATUS_BSY) ||
+ (!(byte & IDE_REGISTER_STATUS_DRDY)));
+
+ for (i=0; i< ATA_MAX_CMD_REG_OFFSET; i++)
+ {
+ uint32_t reg = (1 << i);
+ if (areq->regs.to_write & reg)
+ ide_controller_write_register(ctrl_minor, i,
+ areq->regs.regs[i]);
+ }
+
+ do {
+ ide_controller_read_register(ctrl_minor, IDE_REGISTER_STATUS, &byte);
+ } while (byte & IDE_REGISTER_STATUS_BSY);
+
+ ide_controller_read_register(ctrl_minor, IDE_REGISTER_STATUS, &val);
+ ide_controller_read_register(ctrl_minor, IDE_REGISTER_ERROR, &val1);
+
+ if (val & IDE_REGISTER_STATUS_ERR)
+ {
+ areq->breq->status = RTEMS_IO_ERROR;
+ return;
+ }
+
+ switch(areq->type)
+ {
+ case ATA_COMMAND_TYPE_PIO_IN:
+ if (areq->cnt)
+ {
+ int ccbuf = areq->cbuf;
+ ide_controller_read_data_block(ctrl_minor,
+ areq->breq->bufs[0].length * areq->cnt,
+ areq->breq->bufs, &areq->cbuf,
+ &areq->pos);
+ ccbuf = areq->cbuf - ccbuf;
+ areq->cnt -= ccbuf;
+ }
+ if (areq->cnt == 0)
+ {
+ areq->breq->status = RTEMS_SUCCESSFUL;
+ }
+ else
+ {
+ /*
+ * this shouldn't happend on the initialization
+ * phase!
+ */
+ rtems_fatal_error_occurred(RTEMS_INTERNAL_ERROR);
+ }
+ break;
+
+ case ATA_COMMAND_TYPE_NON_DATA:
+ areq->breq->status = RTEMS_SUCCESSFUL;
+ areq->info = val1;
+ break;
+
+ default:
+ areq->breq->status = RTEMS_IO_ERROR;
+ break;
+ }
+}
+
+void ata_breq_init(blkdev_request1 *breq, uint16_t *sector_buffer)
+{
+ memset(breq, 0, sizeof(*breq));
+
+ breq->req.done_arg = breq;
+ breq->req.bufnum = 1;
+ breq->req.bufs [0].length = ATA_SECTOR_SIZE;
+ breq->req.bufs [0].buffer = sector_buffer;
+}
+
+rtems_status_code ata_identify_device(
+ rtems_device_minor_number ctrl_minor,
+ int dev,
+ uint16_t *sector_buffer,
+ ata_dev_t *device_entry
+)
+{
+ ata_req_t areq;
+ blkdev_request1 breq;
+
+ ata_breq_init(&breq, sector_buffer);
+
+ /*
+ * Issue DEVICE IDENTIFY ATA command and get device
+ * configuration
+ */
+ memset(&areq, 0, sizeof(ata_req_t));
+ areq.type = ATA_COMMAND_TYPE_PIO_IN;
+ areq.regs.to_write = ATA_REGISTERS_VALUE(IDE_REGISTER_COMMAND);
+ areq.regs.regs [IDE_REGISTER_COMMAND] = ATA_COMMAND_IDENTIFY_DEVICE;
+ areq.regs.to_read = ATA_REGISTERS_VALUE(IDE_REGISTER_STATUS);
+ areq.breq = (rtems_blkdev_request *)&breq;
+ areq.cnt = breq.req.bufnum;
+ areq.regs.regs [IDE_REGISTER_DEVICE_HEAD] |=
+ dev << IDE_REGISTER_DEVICE_HEAD_DEV_POS;
+
+ /*
+ * Process the request. Special processing of requests on
+ * initialization phase is needed because at this moment there
+ * is no multitasking enviroment
+ */
+ ata_process_request_on_init_phase(ctrl_minor, &areq);
+
+ /* check status of I/O operation */
+ if (breq.req.status != RTEMS_SUCCESSFUL) {
+ return RTEMS_IO_ERROR;
+ }
+
+ /*
+ * Parse returned device configuration and fill in ATA internal
+ * device info structure
+ */
+ device_entry->cylinders =
+ CF_LE_W(sector_buffer[ATA_IDENT_WORD_NUM_OF_CURR_LOG_CLNDS]);
+ device_entry->heads =
+ CF_LE_W(sector_buffer[ATA_IDENT_WORD_NUM_OF_CURR_LOG_HEADS]);
+ device_entry->sectors =
+ CF_LE_W(sector_buffer[ATA_IDENT_WORD_NUM_OF_CURR_LOG_SECS]);
+ device_entry->lba_sectors =
+ CF_LE_W(sector_buffer[ATA_IDENT_WORD_NUM_OF_USR_SECS1]);
+ device_entry->lba_sectors <<= 16;
+ device_entry->lba_sectors += CF_LE_W(sector_buffer[ATA_IDENT_WORD_NUM_OF_USR_SECS0]);
+ device_entry->lba_avaible =
+ (CF_LE_W(sector_buffer[ATA_IDENT_WORD_CAPABILITIES]) >> 9) & 0x1;
+
+ if ((CF_LE_W(sector_buffer[ATA_IDENT_WORD_FIELD_VALIDITY]) &
+ ATA_IDENT_BIT_VALID) == 0) {
+ /* no "supported modes" info -> use default */
+ device_entry->mode_active = ATA_MODES_PIO3;
+ } else {
+ device_entry->modes_available =
+ ((CF_LE_W(sector_buffer[64]) & 0x1) ? ATA_MODES_PIO3 : 0) |
+ ((CF_LE_W(sector_buffer[64]) & 0x2) ? ATA_MODES_PIO4 : 0) |
+ ((CF_LE_W(sector_buffer[63]) & 0x1) ? ATA_MODES_DMA0 : 0) |
+ ((CF_LE_W(sector_buffer[63]) & 0x2) ?
+ ATA_MODES_DMA0 | ATA_MODES_DMA1 : 0) |
+ ((CF_LE_W(sector_buffer[63]) & 0x4) ?
+ ATA_MODES_DMA0 | ATA_MODES_DMA1 | ATA_MODES_DMA2 : 0);
+ if (device_entry->modes_available == 0) {
+ return RTEMS_IO_ERROR;
+ }
+ }
+
+ return RTEMS_SUCCESSFUL;
+}
</font></pre>
<p> </p>
<a name='cs3'></a>
<table border='0' cellspacing='0' cellpadding='5' width='100%' bgcolor='#eeeeee'>
<tr><td colspan='3' bgcolor='#dddddd'>
<font color='#bb2222'><strong>sh</strong></font>
</td></tr>
<tr><td colspan='3' bgcolor='#dddddd'><pre>2010-08-17 Sebastian Huber <sebastian.huber@embedded-brains.de>
* libchip/Makefile.am, libchip/preinstall.am: Install
<libchip/ata_internal.h>.
</pre></td></tr>
<tr><td width='1%'><a href="http://www.rtems.com/cgi-bin/viewcvs.cgi//rtems/c/src/ChangeLog.diff?r1=text&tr1=1.530&r2=text&tr2=1.531&diff_format=h">M</a></td><td width='1%'>1.531</td><td width='100%'>c/src/ChangeLog</td></tr>
<tr><td width='1%'><a href="http://www.rtems.com/cgi-bin/viewcvs.cgi//rtems/c/src/libchip/Makefile.am.diff?r1=text&tr1=1.48&r2=text&tr2=1.49&diff_format=h">M</a></td><td width='1%'>1.49</td><td width='100%'>c/src/libchip/Makefile.am</td></tr>
<tr><td width='1%'><a href="http://www.rtems.com/cgi-bin/viewcvs.cgi//rtems/c/src/libchip/preinstall.am.diff?r1=text&tr1=1.19&r2=text&tr2=1.20&diff_format=h">M</a></td><td width='1%'>1.20</td><td width='100%'>c/src/libchip/preinstall.am</td></tr>
</table>
<pre>
<font color='#006600'>diff -u rtems/c/src/ChangeLog:1.530 rtems/c/src/ChangeLog:1.531
--- rtems/c/src/ChangeLog:1.530 Tue Aug 17 08:54:49 2010
+++ rtems/c/src/ChangeLog Tue Aug 17 09:06:56 2010
</font><font color='#997700'>@@ -1,5 +1,10 @@
</font> 2010-08-17 Sebastian Huber <sebastian.huber@embedded-brains.de>
<font color='#000088'>+ * libchip/Makefile.am, libchip/preinstall.am: Install
+ <libchip/ata_internal.h>.
+
+2010-08-17 Sebastian Huber <sebastian.huber@embedded-brains.de>
+
</font> * libchip/ide/ata_util.c: New file.
* libchip/Makefile.am: Reflect change from above.
* libchip/ide/ata.c: Moved ata_breq_init(), ata_identify_device(), and
<font color='#006600'>diff -u rtems/c/src/libchip/Makefile.am:1.48 rtems/c/src/libchip/Makefile.am:1.49
--- rtems/c/src/libchip/Makefile.am:1.48 Tue Aug 17 08:54:50 2010
+++ rtems/c/src/libchip/Makefile.am Tue Aug 17 09:06:56 2010
</font><font color='#997700'>@@ -27,11 +27,10 @@
</font>
# ide
include_libchip_HEADERS += ide/ata.h ide/ide_ctrl_cfg.h ide/ide_ctrl.h \
<font color='#880000'>- ide/ide_ctrl_io.h
</font><font color='#000088'>+ ide/ide_ctrl_io.h ide/ata_internal.h
</font>
noinst_LIBRARIES += libide.a
<font color='#880000'>-libide_a_SOURCES = ide/ata.c ide/ata_util.c ide/ide_controller.c \
- ide/ata_internal.h
</font><font color='#000088'>+libide_a_SOURCES = ide/ata.c ide/ata_util.c ide/ide_controller.c
</font> libide_a_CPPFLAGS = $(AM_CPPFLAGS)
# network
<font color='#006600'>diff -u rtems/c/src/libchip/preinstall.am:1.19 rtems/c/src/libchip/preinstall.am:1.20
--- rtems/c/src/libchip/preinstall.am:1.19 Tue Oct 20 21:30:35 2009
+++ rtems/c/src/libchip/preinstall.am Tue Aug 17 09:06:56 2010
</font><font color='#997700'>@@ -57,6 +57,10 @@
</font> $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/libchip/ide_ctrl_io.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/libchip/ide_ctrl_io.h
<font color='#000088'>+$(PROJECT_INCLUDE)/libchip/ata_internal.h: ide/ata_internal.h $(PROJECT_INCLUDE)/libchip/$(dirstamp)
+ $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/libchip/ata_internal.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/libchip/ata_internal.h
+
</font> if HAS_NETWORKING
$(PROJECT_INCLUDE)/libchip/cs8900.h: network/cs8900.h $(PROJECT_INCLUDE)/libchip/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/libchip/cs8900.h
</pre>
<p> </p>
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