[PATCH kvmtool 05/21] hw/i8042: Clean up data types

[Andre Przywara]

The i8042 is clearly an 8-bit era device, so there is little room for
32-bit registers.
Clean up the data types used.

Signed-off-by: Andre Przywara <andre.przywara at arm.com>
---
 hw/i8042.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/hw/i8042.c b/hw/i8042.c
index 37a99a2d..36ee183f 100644
--- a/hw/i8042.c
+++ b/hw/i8042.c
@@ -64,11 +64,11 @@
 struct kbd_state {
 	struct kvm		*kvm;
 
-	char			kq[QUEUE_SIZE];	/* Keyboard queue */
+	u8			kq[QUEUE_SIZE];	/* Keyboard queue */
 	int			kread, kwrite;	/* Indexes into the queue */
 	int			kcount;		/* number of elements in queue */
 
-	char			mq[QUEUE_SIZE];
+	u8			mq[QUEUE_SIZE];
 	int			mread, mwrite;
 	int			mcount;
 
@@ -173,9 +173,9 @@ static void kbd_write_command(struct kvm *kvm, u8 val)
 /*
  * Called when the OS reads from port 0x60 (PS/2 data)
  */
-static u32 kbd_read_data(void)
+static u8 kbd_read_data(void)
 {
-	u32 ret;
+	u8 ret;
 	int i;
 
 	if (state.kcount != 0) {
@@ -202,9 +202,9 @@ static u32 kbd_read_data(void)
 /*
  * Called when the OS read from port 0x64, the command port
  */
-static u32 kbd_read_status(void)
+static u8 kbd_read_status(void)
 {
-	return (u32)state.status;
+	return state.status;
 }
 
 /*
@@ -212,7 +212,7 @@ static u32 kbd_read_status(void)
  * Things written here are generally arguments to commands previously
  * written to port 0x64 and stored in state.write_cmd
  */
-static void kbd_write_data(u32 val)
+static void kbd_write_data(u8 val)
 {
 	switch (state.write_cmd) {
 	case I8042_CMD_CTL_WCTR:
@@ -304,8 +304,8 @@ static bool kbd_in(struct ioport *ioport, struct kvm_cpu *vcpu, u16 port, void *
 		break;
 	}
 	case I8042_DATA_REG: {
-		u32 value = kbd_read_data();
-		ioport__write32(data, value);
+		u8 value = kbd_read_data();
+		ioport__write8(data, value);
 		break;
 	}
 	case I8042_PORT_B_REG: {
@@ -328,7 +328,7 @@ static bool kbd_out(struct ioport *ioport, struct kvm_cpu *vcpu, u16 port, void
 		break;
 	}
 	case I8042_DATA_REG: {
-		u32 value = ioport__read32(data);
+		u8 value = ioport__read8(data);
 		kbd_write_data(value);
 		break;
 	}
-- 
2.17.1