cuda: convert to use the shared mos6522 device

Add the relevant hooks as required for the MacOS timer calibration and delayed
SR interrupt.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

hw/ppc/mac.h

@@ -30,6 +30,7 @@
 #include "hw/sysbus.h"
 #include "hw/ide/internal.h"
 #include "hw/input/adb.h"
+#include "hw/misc/mos6522.h"
 
 /* SMP is not enabled, for now */
 #define MAX_CPUS 1
@@ -44,59 +45,48 @@
 
 #define ESCC_CLOCK 3686400
 
+/* CUDA commands (2nd byte) */
+#define CUDA_WARM_START                0x0
+#define CUDA_AUTOPOLL                  0x1
+#define CUDA_GET_6805_ADDR             0x2
+#define CUDA_GET_TIME                  0x3
+#define CUDA_GET_PRAM                  0x7
+#define CUDA_SET_6805_ADDR             0x8
+#define CUDA_SET_TIME                  0x9
+#define CUDA_POWERDOWN                 0xa
+#define CUDA_POWERUP_TIME              0xb
+#define CUDA_SET_PRAM                  0xc
+#define CUDA_MS_RESET                  0xd
+#define CUDA_SEND_DFAC                 0xe
+#define CUDA_BATTERY_SWAP_SENSE        0x10
+#define CUDA_RESET_SYSTEM              0x11
+#define CUDA_SET_IPL                   0x12
+#define CUDA_FILE_SERVER_FLAG          0x13
+#define CUDA_SET_AUTO_RATE             0x14
+#define CUDA_GET_AUTO_RATE             0x16
+#define CUDA_SET_DEVICE_LIST           0x19
+#define CUDA_GET_DEVICE_LIST           0x1a
+#define CUDA_SET_ONE_SECOND_MODE       0x1b
+#define CUDA_SET_POWER_MESSAGES        0x21
+#define CUDA_GET_SET_IIC               0x22
+#define CUDA_WAKEUP                    0x23
+#define CUDA_TIMER_TICKLE              0x24
+#define CUDA_COMBINED_FORMAT_IIC       0x25
+
 /* Cuda */
 #define TYPE_CUDA "cuda"
 #define CUDA(obj) OBJECT_CHECK(CUDAState, (obj), TYPE_CUDA)
 
-/**
- * CUDATimer:
- * @counter_value: counter value at load time
- */
-typedef struct CUDATimer {
-    int index;
-    uint16_t latch;
-    uint16_t counter_value;
-    int64_t load_time;
-    int64_t next_irq_time;
-    uint64_t frequency;
-    QEMUTimer *timer;
-} CUDATimer;
+typedef struct MOS6522CUDAState MOS6522CUDAState;
 
-/**
- * CUDAState:
- * @b: B-side data
- * @a: A-side data
- * @dirb: B-side direction (1=output)
- * @dira: A-side direction (1=output)
- * @sr: Shift register
- * @acr: Auxiliary control register
- * @pcr: Peripheral control register
- * @ifr: Interrupt flag register
- * @ier: Interrupt enable register
- * @anh: A-side data, no handshake
- * @last_b: last value of B register
- * @last_acr: last value of ACR register
- */
 typedef struct CUDAState {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
-
     MemoryRegion mem;
-    /* cuda registers */
-    uint8_t b;
-    uint8_t a;
-    uint8_t dirb;
-    uint8_t dira;
-    uint8_t sr;
-    uint8_t acr;
-    uint8_t pcr;
-    uint8_t ifr;
-    uint8_t ier;
-    uint8_t anh;
 
     ADBBusState adb_bus;
-    CUDATimer timers[2];
+    MOS6522CUDAState *mos6522_cuda;
 
     uint32_t tick_offset;
     uint64_t tb_frequency;
@@ -105,6 +95,7 @@ typedef struct CUDAState {
     uint8_t last_acr;
 
     /* MacOS 9 is racy and requires a delay upon setting the SR_INT bit */
+    uint64_t sr_delay_ns;
     QEMUTimer *sr_delay_timer;
 
     int data_in_size;
@@ -120,6 +111,18 @@ typedef struct CUDAState {
     QEMUTimer *adb_poll_timer;
 } CUDAState;
 
+/* MOS6522 CUDA */
+typedef struct MOS6522CUDAState {
+    /*< private >*/
+    MOS6522State parent_obj;
+
+    CUDAState *cuda;
+} MOS6522CUDAState;
+
+#define TYPE_MOS6522_CUDA "mos6522-cuda"
+#define MOS6522_CUDA(obj) OBJECT_CHECK(MOS6522CUDAState, (obj), \
+                                       TYPE_MOS6522_CUDA)
+
 /* MacIO */
 #define TYPE_OLDWORLD_MACIO "macio-oldworld"
 #define TYPE_NEWWORLD_MACIO "macio-newworld"