Changeset 48704cde in rtems

Timestamp:

06/20/16 21:17:57 (7 years ago)

Author:

Mudit Jain <spark1729@…>

Branches:

5, master

Children:

68565b0

Parents:

aa30e2c

git-author:

Mudit Jain <spark1729@…> (06/20/16 21:17:57)

git-committer:

Pavel Pisa <pisa@…> (06/28/16 13:44:58)

Message:

arm/raspberrypi: Adding functionalities to Mailbox RPi

Added functions for retrieving firmware revision,
board model and board revision.

Location:

c/src/lib/libbsp/arm/raspberrypi

Files:

• include/vc.h (modified) (1 diff)
• misc/vc.c (modified) (1 diff)
• misc/vc_defines.h (modified) (1 diff)

c/src/lib/libbsp/arm/raspberrypi/include/vc.h

@@ -136 +136 @@
 int
 bcm2835_mailbox_get_vc_memory(bcm2835_get_vc_memory_entries* _entries);
+
+typedef struct
+{
+  uint32_t fw_rev;
+} bcm2835_mailbox_get_fw_rev_entries;
+
+int
+bcm2835_mailbox_get_firmware_revision(bcm2835_mailbox_get_fw_rev_entries* _entries);
+
+typedef struct
+{
+  uint32_t spec;
+} bcm2835_get_board_spec_entries;
+
+int
+bcm2835_mailbox_get_board_model(bcm2835_get_board_spec_entries* _entries);
+
+int
+bcm2835_mailbox_get_board_revision(bcm2835_get_board_spec_entries* _entries);
 /** @} */
 

c/src/lib/libbsp/arm/raspberrypi/misc/vc.c

@@ -291 +291 @@
   return 0;
 }
+
+int
+bcm2835_mailbox_get_firmware_revision(bcm2835_mailbox_get_fw_rev_entries* _entries)
+{
+  struct{
+    bcm2835_mbox_buf_hdr hdr;
+    bcm2835_mbox_tag_get_fw_rev get_fw_rev;
+    uint32_t end_tag;
+  }buffer BCM2835_MBOX_BUF_ALIGN_ATTRIBUTE;
+  BCM2835_MBOX_INIT_BUF(&buffer);
+  BCM2835_MBOX_INIT_TAG_NO_REQ(&buffer.get_fw_rev,
+    BCM2835_MAILBOX_TAG_FIRMWARE_REVISION);
+  bcm2835_mailbox_buffer_flush_and_invalidate(&buffer, sizeof(&buffer));
+  if (bcm2835_mailbox_send_read_buffer(&buffer))
+    return -1;
+  _entries->fw_rev = buffer.get_fw_rev.body.resp.rev;
+  if( !bcm2835_mailbox_buffer_suceeded(&buffer.hdr) )
+    return -2;
+  return 0;
+}
+
+int
+bcm2835_mailbox_get_board_model(bcm2835_get_board_spec_entries* _entries)
+{
+  struct{
+    bcm2835_mbox_buf_hdr hdr;
+    bcm2835_mbox_tag_get_board_spec get_board_model;
+    uint32_t end_tag;
+  }buffer BCM2835_MBOX_BUF_ALIGN_ATTRIBUTE;
+  BCM2835_MBOX_INIT_BUF(&buffer);
+  BCM2835_MBOX_INIT_TAG_NO_REQ(&buffer.get_board_model,
+    BCM2835_MAILBOX_TAG_GET_BOARD_MODEL);
+  bcm2835_mailbox_buffer_flush_and_invalidate(&buffer, sizeof(&buffer));
+  if (bcm2835_mailbox_send_read_buffer(&buffer))
+    return -1;
+  _entries->spec = buffer.get_board_model.body.resp.spec;
+  if( !bcm2835_mailbox_buffer_suceeded(&buffer.hdr) )
+    return -2;
+  return 0;
+}
+
+int
+bcm2835_mailbox_get_board_revision(bcm2835_get_board_spec_entries* _entries)
+{
+  struct{
+    bcm2835_mbox_buf_hdr hdr;
+    bcm2835_mbox_tag_get_board_spec get_board_revision;
+    uint32_t end_tag;
+  }buffer BCM2835_MBOX_BUF_ALIGN_ATTRIBUTE;
+  BCM2835_MBOX_INIT_BUF(&buffer);
+  BCM2835_MBOX_INIT_TAG_NO_REQ(&buffer.get_board_revision,
+    BCM2835_MAILBOX_TAG_GET_BOARD_VERSION);
+  bcm2835_mailbox_buffer_flush_and_invalidate(&buffer, sizeof(&buffer));
+  if (bcm2835_mailbox_send_read_buffer(&buffer))
+    return -1;
+  _entries->spec = buffer.get_board_revision.body.resp.spec;
+  if( !bcm2835_mailbox_buffer_suceeded(&buffer.hdr) )
+    return -2;
+  return 0;
+}

c/src/lib/libbsp/arm/raspberrypi/misc/vc_defines.h

@@ -136 +136 @@
 /* Video Core */
 #define BCM2835_MAILBOX_TAG_FIRMWARE_REVISION   0x00000001
+typedef struct {
+  bcm2835_mbox_tag_hdr tag_hdr;
+  union {
+    struct {
+    } req;
+    struct {
+      uint32_t rev;
+    } resp;
+  } body;
+} bcm2835_mbox_tag_get_fw_rev;
 
 /* Hardware */
 #define BCM2835_MAILBOX_TAG_GET_BOARD_MODEL     0x00010001
 #define BCM2835_MAILBOX_TAG_GET_BOARD_VERSION   0x00010002
+typedef struct {
+  bcm2835_mbox_tag_hdr tag_hdr;
+  union {
+    struct {
+    } req;
+    struct {
+      uint32_t spec;
+    } resp;
+  } body;
+} bcm2835_mbox_tag_get_board_spec;
 
 #if (BSP_IS_RPI2 == 1)