#define BUF_SIZE 256
typedef struct {
- CharDriverState *chr;
+ Chardev parent;
brlapi_handle_t *brlapi;
int brlapi_fd;
uint8_t out_buf_used, out_buf_ptr;
QEMUTimer *cellCount_timer;
-} BaumDriverState;
+} BaumChardev;
+
+#define TYPE_CHARDEV_BRAILLE "chardev-braille"
+#define BAUM_CHARDEV(obj) OBJECT_CHECK(BaumChardev, (obj), TYPE_CHARDEV_BRAILLE)
/* Let's assume NABCC by default */
enum way {
};
/* The guest OS has started discussing with us, finish initializing BrlAPI */
-static int baum_deferred_init(BaumDriverState *baum)
+static int baum_deferred_init(BaumChardev *baum)
{
int tty = BRLAPI_TTY_DEFAULT;
QemuConsole *con;
}
/* The serial port can receive more of our data */
-static void baum_accept_input(struct CharDriverState *chr)
+static void baum_chr_accept_input(struct Chardev *chr)
{
- BaumDriverState *baum = chr->opaque;
+ BaumChardev *baum = BAUM_CHARDEV(chr);
int room, first;
if (!baum->out_buf_used)
}
/* We want to send a packet */
-static void baum_write_packet(BaumDriverState *baum, const uint8_t *buf, int len)
+static void baum_write_packet(BaumChardev *baum, const uint8_t *buf, int len)
{
+ Chardev *chr = CHARDEV(baum);
uint8_t io_buf[1 + 2 * len], *cur = io_buf;
int room;
*cur++ = ESC;
while (len--)
if ((*cur++ = *buf++) == ESC)
*cur++ = ESC;
- room = qemu_chr_be_can_write(baum->chr);
+ room = qemu_chr_be_can_write(chr);
len = cur - io_buf;
if (len <= room) {
/* Fits */
- qemu_chr_be_write(baum->chr, io_buf, len);
+ qemu_chr_be_write(chr, io_buf, len);
} else {
int first;
uint8_t out;
/* Can't fit all, send what can be, and store the rest. */
- qemu_chr_be_write(baum->chr, io_buf, room);
+ qemu_chr_be_write(chr, io_buf, room);
len -= room;
cur = io_buf + room;
if (len > BUF_SIZE - baum->out_buf_used) {
/* Called when the other end seems to have a wrong idea of our display size */
static void baum_cellCount_timer_cb(void *opaque)
{
- BaumDriverState *baum = opaque;
+ BaumChardev *baum = BAUM_CHARDEV(opaque);
uint8_t cell_count[] = { BAUM_RSP_CellCount, baum->x * baum->y };
DPRINTF("Timeout waiting for DisplayData, sending cell count\n");
baum_write_packet(baum, cell_count, sizeof(cell_count));
}
/* Try to interpret a whole incoming packet */
-static int baum_eat_packet(BaumDriverState *baum, const uint8_t *buf, int len)
+static int baum_eat_packet(BaumChardev *baum, const uint8_t *buf, int len)
{
const uint8_t *cur = buf;
uint8_t req = 0;
}
/* The other end is writing some data. Store it and try to interpret */
-static int baum_write(CharDriverState *chr, const uint8_t *buf, int len)
+static int baum_chr_write(Chardev *chr, const uint8_t *buf, int len)
{
- BaumDriverState *baum = chr->opaque;
+ BaumChardev *baum = BAUM_CHARDEV(chr);
int tocopy, cur, eaten, orig_len = len;
if (!len)
}
/* Send the key code to the other end */
-static void baum_send_key(BaumDriverState *baum, uint8_t type, uint8_t value) {
+static void baum_send_key(BaumChardev *baum, uint8_t type, uint8_t value)
+{
uint8_t packet[] = { type, value };
DPRINTF("writing key %x %x\n", type, value);
baum_write_packet(baum, packet, sizeof(packet));
}
-static void baum_send_key2(BaumDriverState *baum, uint8_t type, uint8_t value,
- uint8_t value2) {
+static void baum_send_key2(BaumChardev *baum, uint8_t type, uint8_t value,
+ uint8_t value2)
+{
uint8_t packet[] = { type, value, value2 };
DPRINTF("writing key %x %x\n", type, value);
baum_write_packet(baum, packet, sizeof(packet));
/* We got some data on the BrlAPI socket */
static void baum_chr_read(void *opaque)
{
- BaumDriverState *baum = opaque;
+ BaumChardev *baum = BAUM_CHARDEV(opaque);
brlapi_keyCode_t code;
int ret;
if (!baum->brlapi)
}
}
-static void baum_free(struct CharDriverState *chr)
+static void baum_chr_free(Chardev *chr)
{
- BaumDriverState *baum = chr->opaque;
+ BaumChardev *baum = BAUM_CHARDEV(chr);
timer_free(baum->cellCount_timer);
if (baum->brlapi) {
brlapi__closeConnection(baum->brlapi);
g_free(baum->brlapi);
}
- g_free(baum);
}
-static CharDriverState *chr_baum_init(const char *id,
- ChardevBackend *backend,
- ChardevReturn *ret,
- bool *be_opened,
- Error **errp)
+static void baum_chr_open(Chardev *chr,
+ ChardevBackend *backend,
+ bool *be_opened,
+ Error **errp)
{
- ChardevCommon *common = backend->u.braille.data;
- BaumDriverState *baum;
- CharDriverState *chr;
+ BaumChardev *baum = BAUM_CHARDEV(chr);
brlapi_handle_t *handle;
- chr = qemu_chr_alloc(common, errp);
- if (!chr) {
- return NULL;
- }
- baum = g_malloc0(sizeof(BaumDriverState));
- baum->chr = chr;
-
- chr->opaque = baum;
- chr->chr_write = baum_write;
- chr->chr_accept_input = baum_accept_input;
- chr->chr_free = baum_free;
-
handle = g_malloc0(brlapi_getHandleSize());
baum->brlapi = handle;
if (baum->brlapi_fd == -1) {
error_setg(errp, "brlapi__openConnection: %s",
brlapi_strerror(brlapi_error_location()));
- goto fail_handle;
+ g_free(handle);
+ return;
}
baum->deferred_init = 0;
baum->cellCount_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, baum_cellCount_timer_cb, baum);
qemu_set_fd_handler(baum->brlapi_fd, baum_chr_read, NULL, baum);
+}
- return chr;
+static void char_braille_class_init(ObjectClass *oc, void *data)
+{
+ ChardevClass *cc = CHARDEV_CLASS(oc);
-fail_handle:
- g_free(handle);
- g_free(chr);
- g_free(baum);
- return NULL;
+ cc->open = baum_chr_open;
+ cc->chr_write = baum_chr_write;
+ cc->chr_accept_input = baum_chr_accept_input;
+ cc->chr_free = baum_chr_free;
}
+static const TypeInfo char_braille_type_info = {
+ .name = TYPE_CHARDEV_BRAILLE,
+ .parent = TYPE_CHARDEV,
+ .instance_size = sizeof(BaumChardev),
+ .class_init = char_braille_class_init,
+};
+
static void register_types(void)
{
- register_char_driver("braille", CHARDEV_BACKEND_KIND_BRAILLE, NULL,
- chr_baum_init);
+ static const CharDriver driver = {
+ .kind = CHARDEV_BACKEND_KIND_BRAILLE,
+ };
+
+ register_char_driver(&driver);
+ type_register_static(&char_braille_type_info);
}
type_init(register_types);
projects / mirror_qemu.git / blobdiff