*
*/
+#include "qemu/osdep.h"
#include "hw/hw.h"
#include "hw/isa/isa.h"
#include "ui/console.h"
/* #define DEBUG_SMC */
#define APPLESMC_DEFAULT_IOBASE 0x300
-/* data port used by Apple SMC */
-#define APPLESMC_DATA_PORT 0x0
-/* command/status port used by Apple SMC */
-#define APPLESMC_CMD_PORT 0x4
-#define APPLESMC_NR_PORTS 32
-#define APPLESMC_MAX_DATA_LENGTH 32
-
-#define APPLESMC_READ_CMD 0x10
-#define APPLESMC_WRITE_CMD 0x11
-#define APPLESMC_GET_KEY_BY_INDEX_CMD 0x12
-#define APPLESMC_GET_KEY_TYPE_CMD 0x13
+
+enum {
+ APPLESMC_DATA_PORT = 0x00,
+ APPLESMC_CMD_PORT = 0x04,
+ APPLESMC_ERR_PORT = 0x1e,
+ APPLESMC_NUM_PORTS = 0x20,
+};
+
+enum {
+ APPLESMC_READ_CMD = 0x10,
+ APPLESMC_WRITE_CMD = 0x11,
+ APPLESMC_GET_KEY_BY_INDEX_CMD = 0x12,
+ APPLESMC_GET_KEY_TYPE_CMD = 0x13,
+};
+
+enum {
+ APPLESMC_ST_CMD_DONE = 0x00,
+ APPLESMC_ST_DATA_READY = 0x01,
+ APPLESMC_ST_BUSY = 0x02,
+ APPLESMC_ST_ACK = 0x04,
+ APPLESMC_ST_NEW_CMD = 0x08,
+};
+
+enum {
+ APPLESMC_ST_1E_CMD_INTRUPTED = 0x80,
+ APPLESMC_ST_1E_STILL_BAD_CMD = 0x81,
+ APPLESMC_ST_1E_BAD_CMD = 0x82,
+ APPLESMC_ST_1E_NOEXIST = 0x84,
+ APPLESMC_ST_1E_WRITEONLY = 0x85,
+ APPLESMC_ST_1E_READONLY = 0x86,
+ APPLESMC_ST_1E_BAD_INDEX = 0xb8,
+};
#ifdef DEBUG_SMC
#define smc_debug(...) fprintf(stderr, "AppleSMC: " __VA_ARGS__)
#else
-#define smc_debug(...) do { } while(0)
+#define smc_debug(...) do { } while (0)
#endif
static char default_osk[64] = "This is a dummy key. Enter the real key "
QLIST_ENTRY(AppleSMCData) node;
};
-#define TYPE_APPLE_SMC "isa-applesmc"
#define APPLE_SMC(obj) OBJECT_CHECK(AppleSMCState, (obj), TYPE_APPLE_SMC)
typedef struct AppleSMCState AppleSMCState;
struct AppleSMCState {
ISADevice parent_obj;
+ MemoryRegion io_data;
+ MemoryRegion io_cmd;
+ MemoryRegion io_err;
uint32_t iobase;
uint8_t cmd;
uint8_t status;
- uint8_t key[4];
+ uint8_t status_1e;
+ uint8_t last_ret;
+ char key[4];
uint8_t read_pos;
uint8_t data_len;
uint8_t data_pos;
uint8_t data[255];
- uint8_t charactic[4];
char *osk;
QLIST_HEAD(, AppleSMCData) data_def;
};
-static void applesmc_io_cmd_writeb(void *opaque, uint32_t addr, uint32_t val)
+static void applesmc_io_cmd_write(void *opaque, hwaddr addr, uint64_t val,
+ unsigned size)
{
AppleSMCState *s = opaque;
-
- smc_debug("CMD Write B: %#x = %#x\n", addr, val);
- switch(val) {
- case APPLESMC_READ_CMD:
- s->status = 0x0c;
- break;
+ uint8_t status = s->status & 0x0f;
+
+ smc_debug("CMD received: 0x%02x\n", (uint8_t)val);
+ switch (val) {
+ case APPLESMC_READ_CMD:
+ /* did last command run through OK? */
+ if (status == APPLESMC_ST_CMD_DONE || status == APPLESMC_ST_NEW_CMD) {
+ s->cmd = val;
+ s->status = APPLESMC_ST_NEW_CMD | APPLESMC_ST_ACK;
+ } else {
+ smc_debug("ERROR: previous command interrupted!\n");
+ s->status = APPLESMC_ST_NEW_CMD;
+ s->status_1e = APPLESMC_ST_1E_CMD_INTRUPTED;
+ }
+ break;
+ default:
+ smc_debug("UNEXPECTED CMD 0x%02x\n", (uint8_t)val);
+ s->status = APPLESMC_ST_NEW_CMD;
+ s->status_1e = APPLESMC_ST_1E_BAD_CMD;
}
- s->cmd = val;
s->read_pos = 0;
s->data_pos = 0;
}
-static void applesmc_fill_data(AppleSMCState *s)
+static struct AppleSMCData *applesmc_find_key(AppleSMCState *s)
{
struct AppleSMCData *d;
QLIST_FOREACH(d, &s->data_def, node) {
if (!memcmp(d->key, s->key, 4)) {
- smc_debug("Key matched (%s Len=%d Data=%s)\n", d->key,
- d->len, d->data);
- memcpy(s->data, d->data, d->len);
- return;
+ return d;
}
}
+ return NULL;
}
-static void applesmc_io_data_writeb(void *opaque, uint32_t addr, uint32_t val)
+static void applesmc_io_data_write(void *opaque, hwaddr addr, uint64_t val,
+ unsigned size)
{
AppleSMCState *s = opaque;
+ struct AppleSMCData *d;
- smc_debug("DATA Write B: %#x = %#x\n", addr, val);
- switch(s->cmd) {
- case APPLESMC_READ_CMD:
- if(s->read_pos < 4) {
- s->key[s->read_pos] = val;
- s->status = 0x04;
- } else if(s->read_pos == 4) {
- s->data_len = val;
- s->status = 0x05;
+ smc_debug("DATA received: 0x%02x\n", (uint8_t)val);
+ switch (s->cmd) {
+ case APPLESMC_READ_CMD:
+ if ((s->status & 0x0f) == APPLESMC_ST_CMD_DONE) {
+ break;
+ }
+ if (s->read_pos < 4) {
+ s->key[s->read_pos] = val;
+ s->status = APPLESMC_ST_ACK;
+ } else if (s->read_pos == 4) {
+ d = applesmc_find_key(s);
+ if (d != NULL) {
+ memcpy(s->data, d->data, d->len);
+ s->data_len = d->len;
s->data_pos = 0;
- smc_debug("Key = %c%c%c%c Len = %d\n", s->key[0],
- s->key[1], s->key[2], s->key[3], val);
- applesmc_fill_data(s);
+ s->status = APPLESMC_ST_ACK | APPLESMC_ST_DATA_READY;
+ s->status_1e = APPLESMC_ST_CMD_DONE; /* clear on valid key */
+ } else {
+ smc_debug("READ_CMD: key '%c%c%c%c' not found!\n",
+ s->key[0], s->key[1], s->key[2], s->key[3]);
+ s->status = APPLESMC_ST_CMD_DONE;
+ s->status_1e = APPLESMC_ST_1E_NOEXIST;
}
- s->read_pos++;
- break;
+ }
+ s->read_pos++;
+ break;
+ default:
+ s->status = APPLESMC_ST_CMD_DONE;
+ s->status_1e = APPLESMC_ST_1E_STILL_BAD_CMD;
}
}
-static uint32_t applesmc_io_data_readb(void *opaque, uint32_t addr1)
+static void applesmc_io_err_write(void *opaque, hwaddr addr, uint64_t val,
+ unsigned size)
+{
+ smc_debug("ERR_CODE received: 0x%02x, ignoring!\n", (uint8_t)val);
+ /* NOTE: writing to the error port not supported! */
+}
+
+static uint64_t applesmc_io_data_read(void *opaque, hwaddr addr, unsigned size)
{
AppleSMCState *s = opaque;
- uint8_t retval = 0;
-
- switch(s->cmd) {
- case APPLESMC_READ_CMD:
- if(s->data_pos < s->data_len) {
- retval = s->data[s->data_pos];
- smc_debug("READ_DATA[%d] = %#hhx\n", s->data_pos,
- retval);
- s->data_pos++;
- if(s->data_pos == s->data_len) {
- s->status = 0x00;
- smc_debug("EOF\n");
- } else
- s->status = 0x05;
+
+ switch (s->cmd) {
+ case APPLESMC_READ_CMD:
+ if (!(s->status & APPLESMC_ST_DATA_READY)) {
+ break;
+ }
+ if (s->data_pos < s->data_len) {
+ s->last_ret = s->data[s->data_pos];
+ smc_debug("READ '%c%c%c%c'[%d] = %02x\n",
+ s->key[0], s->key[1], s->key[2], s->key[3],
+ s->data_pos, s->last_ret);
+ s->data_pos++;
+ if (s->data_pos == s->data_len) {
+ s->status = APPLESMC_ST_CMD_DONE;
+ smc_debug("READ '%c%c%c%c' Len=%d complete!\n",
+ s->key[0], s->key[1], s->key[2], s->key[3],
+ s->data_len);
+ } else {
+ s->status = APPLESMC_ST_ACK | APPLESMC_ST_DATA_READY;
}
+ }
+ break;
+ default:
+ s->status = APPLESMC_ST_CMD_DONE;
+ s->status_1e = APPLESMC_ST_1E_STILL_BAD_CMD;
}
- smc_debug("DATA Read b: %#x = %#x\n", addr1, retval);
+ smc_debug("DATA sent: 0x%02x\n", s->last_ret);
- return retval;
+ return s->last_ret;
}
-static uint32_t applesmc_io_cmd_readb(void *opaque, uint32_t addr1)
+static uint64_t applesmc_io_cmd_read(void *opaque, hwaddr addr, unsigned size)
{
AppleSMCState *s = opaque;
- smc_debug("CMD Read B: %#x\n", addr1);
+ smc_debug("CMD sent: 0x%02x\n", s->status);
return s->status;
}
+static uint64_t applesmc_io_err_read(void *opaque, hwaddr addr, unsigned size)
+{
+ AppleSMCState *s = opaque;
+
+ /* NOTE: read does not clear the 1e status */
+ smc_debug("ERR_CODE sent: 0x%02x\n", s->status_1e);
+ return s->status_1e;
+}
+
static void applesmc_add_key(AppleSMCState *s, const char *key,
int len, const char *data)
{
QLIST_FOREACH_SAFE(d, &s->data_def, node, next) {
QLIST_REMOVE(d, node);
}
+ s->status = 0x00;
+ s->status_1e = 0x00;
+ s->last_ret = 0x00;
applesmc_add_key(s, "REV ", 6, "\x01\x13\x0f\x00\x00\x03");
applesmc_add_key(s, "OSK0", 32, s->osk);
applesmc_add_key(s, "MSSD", 1, "\0x3");
}
+static const MemoryRegionOps applesmc_data_io_ops = {
+ .write = applesmc_io_data_write,
+ .read = applesmc_io_data_read,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .impl = {
+ .min_access_size = 1,
+ .max_access_size = 1,
+ },
+};
+
+static const MemoryRegionOps applesmc_cmd_io_ops = {
+ .write = applesmc_io_cmd_write,
+ .read = applesmc_io_cmd_read,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .impl = {
+ .min_access_size = 1,
+ .max_access_size = 1,
+ },
+};
+
+static const MemoryRegionOps applesmc_err_io_ops = {
+ .write = applesmc_io_err_write,
+ .read = applesmc_io_err_read,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .impl = {
+ .min_access_size = 1,
+ .max_access_size = 1,
+ },
+};
+
static void applesmc_isa_realize(DeviceState *dev, Error **errp)
{
AppleSMCState *s = APPLE_SMC(dev);
- register_ioport_read(s->iobase + APPLESMC_DATA_PORT, 4, 1,
- applesmc_io_data_readb, s);
- register_ioport_read(s->iobase + APPLESMC_CMD_PORT, 4, 1,
- applesmc_io_cmd_readb, s);
- register_ioport_write(s->iobase + APPLESMC_DATA_PORT, 4, 1,
- applesmc_io_data_writeb, s);
- register_ioport_write(s->iobase + APPLESMC_CMD_PORT, 4, 1,
- applesmc_io_cmd_writeb, s);
+ memory_region_init_io(&s->io_data, OBJECT(s), &applesmc_data_io_ops, s,
+ "applesmc-data", 1);
+ isa_register_ioport(&s->parent_obj, &s->io_data,
+ s->iobase + APPLESMC_DATA_PORT);
+
+ memory_region_init_io(&s->io_cmd, OBJECT(s), &applesmc_cmd_io_ops, s,
+ "applesmc-cmd", 1);
+ isa_register_ioport(&s->parent_obj, &s->io_cmd,
+ s->iobase + APPLESMC_CMD_PORT);
+
+ memory_region_init_io(&s->io_err, OBJECT(s), &applesmc_err_io_ops, s,
+ "applesmc-err", 1);
+ isa_register_ioport(&s->parent_obj, &s->io_err,
+ s->iobase + APPLESMC_ERR_PORT);
if (!s->osk || (strlen(s->osk) != 64)) {
fprintf(stderr, "WARNING: Using AppleSMC with invalid key\n");
}
static Property applesmc_isa_properties[] = {
- DEFINE_PROP_HEX32("iobase", AppleSMCState, iobase,
- APPLESMC_DEFAULT_IOBASE),
+ DEFINE_PROP_UINT32(APPLESMC_PROP_IO_BASE, AppleSMCState, iobase,
+ APPLESMC_DEFAULT_IOBASE),
DEFINE_PROP_STRING("osk", AppleSMCState, osk),
DEFINE_PROP_END_OF_LIST(),
};
dc->realize = applesmc_isa_realize;
dc->reset = qdev_applesmc_isa_reset;
dc->props = applesmc_isa_properties;
+ set_bit(DEVICE_CATEGORY_MISC, dc->categories);
}
static const TypeInfo applesmc_isa_info = {
projects / qemu.git / blobdiff