Changeset 9cdac5a in mainline

Timestamp:

2011-01-06T22:15:55Z (13 years ago)

Author:

martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

d8d8bbd

Parents:

c2f3e0b

Message:

add CMD_PIO_WRITE_A_x commands which store values from scratch space to I/O space

Location:

kernel/generic

Files:

• include/ddi/irq.h (modified) (3 diffs)
• src/ipc/irq.c (modified) (1 diff)

kernel/generic/include/ddi/irq.h

@@ -54 +54 @@
         /** Read 4 bytes from the I/O space. */
         CMD_PIO_READ_32,
+        
         /** Write 1 byte to the I/O space. */
         CMD_PIO_WRITE_8,
@@ -62 +63 @@
         
         /**
-         * Perform a bit test on the source argument and store the result into
-         * the destination argument.
+         * Write 1 byte from the source argument
+         * to the I/O space.
+         */
+        CMD_PIO_WRITE_A_8,
+        /**
+         * Write 2 bytes from the source argument
+         * to the I/O space.
+         */
+        CMD_PIO_WRITE_A_16,
+        /**
+         * Write 4 bytes from the source argument
+         * to the I/O space.
+         */
+        CMD_PIO_WRITE_A_32,
+        
+        /**
+         * Perform a bit masking on the source argument
+         * and store the result into the destination argument.
          */
         CMD_BTEST,
         
         /**
-         * Predicate the execution of the following N commands by the boolean
-         * value of the source argument.
+         * Predicate the execution of the following
+         * N commands by the boolean value of the source
+         * argument.
          */
         CMD_PREDICATE,
@@ -75 +93 @@
         /** Accept the interrupt. */
         CMD_ACCEPT,
+        
         /** Decline the interrupt. */
         CMD_DECLINE,

kernel/generic/src/ipc/irq.c

@@ -404 +404 @@
                             (uint32_t) code->cmds[i].value);
                         break;
+                case CMD_PIO_WRITE_A_8:
+                        if (srcarg) {
+                                pio_write_8((ioport8_t *) code->cmds[i].addr,
+                                    (uint8_t) scratch[srcarg]);
+                        }
+                        break;
+                case CMD_PIO_WRITE_A_16:
+                        if (srcarg) {
+                                pio_write_16((ioport16_t *) code->cmds[i].addr,
+                                    (uint16_t) scratch[srcarg]);
+                        }
+                        break;
+                case CMD_PIO_WRITE_A_32:
+                        if (srcarg) {
+                                pio_write_32((ioport32_t *) code->cmds[i].addr,
+                                    (uint32_t) scratch[srcarg]);
+                        }
+                        break;
                 case CMD_BTEST:
                         if ((srcarg) && (dstarg)) {