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kodak605: Load media at attach time.

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This commit is contained in:
Solomon Peachy 2015-08-24 17:27:30 -04:00
parent 183bca83a1
commit 3da69ee55b
1 changed files with 45 additions and 42 deletions
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87
backend_kodak605.c
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@ -118,10 +118,42 @@ struct kodak605_ctx {
int type;
struct kodak605_hdr hdr;
struct kodak605_media_list *media;
uint8_t *databuf;
int datalen;
};
static int kodak605_get_media(struct kodak605_ctx *ctx, struct kodak605_media_list *media)
{
uint8_t cmdbuf[4];
int ret, num = 0;
/* Send Media Query */
cmdbuf[0] = 0x02;
cmdbuf[1] = 0x00;
cmdbuf[2] = 0x00;
cmdbuf[3] = 0x00;
if ((ret = send_data(ctx->dev, ctx->endp_down,
cmdbuf, sizeof(cmdbuf))))
return ret;
/* Read in the printer status */
ret = read_data(ctx->dev, ctx->endp_up,
(uint8_t*) media, MAX_MEDIA_LEN, &num);
if (ret < 0)
return ret;
if (num < (int)sizeof(*media)) {
ERROR("Short Read! (%d/%d)\n", num, (int)sizeof(*media));
return 4;
}
return 0;
}
static void *kodak605_init(void)
{
struct kodak605_ctx *ctx = malloc(sizeof(struct kodak605_ctx));
@ -131,6 +163,10 @@ static void *kodak605_init(void)
}
memset(ctx, 0, sizeof(struct kodak605_ctx));
ctx->media = malloc(MAX_MEDIA_LEN);
ctx->type = P_ANY;
return ctx;
}
@ -152,6 +188,11 @@ static void kodak605_attach(void *vctx, struct libusb_device_handle *dev,
ctx->type = lookup_printer_type(&kodak605_backend,
desc.idVendor, desc.idProduct);
/* Query media info */
if (kodak605_get_media(ctx, ctx->media)) {
ERROR("Can't query media\n");
}
}
static void kodak605_teardown(void *vctx) {
@ -256,43 +297,11 @@ static int kodak605_get_status(struct kodak605_ctx *ctx, struct kodak605_status
return 0;
}
static int kodak605_get_media(struct kodak605_ctx *ctx, struct kodak605_media_list *media)
{
uint8_t cmdbuf[4];
int ret, num = 0;
/* Send Media Query */
cmdbuf[0] = 0x02;
cmdbuf[1] = 0x00;
cmdbuf[2] = 0x00;
cmdbuf[3] = 0x00;
if ((ret = send_data(ctx->dev, ctx->endp_down,
cmdbuf, sizeof(cmdbuf))))
return ret;
/* Read in the printer status */
ret = read_data(ctx->dev, ctx->endp_up,
(uint8_t*) media, MAX_MEDIA_LEN, &num);
if (ret < 0)
return ret;
if (num < (int)sizeof(*media)) {
ERROR("Short Read! (%d/%d)\n", num, (int)sizeof(*media));
return 4;
}
return 0;
}
static int kodak605_main_loop(void *vctx, int copies) {
struct kodak605_ctx *ctx = vctx;
struct kodak605_status sts;
uint8_t mediabuf[MAX_MEDIA_LEN];
struct kodak605_media_list *media = (struct kodak605_media_list *)mediabuf;
int num, ret;
if (!ctx)
@ -304,19 +313,13 @@ static int kodak605_main_loop(void *vctx, int copies) {
if (ctx->hdr.copies < copies)
ctx->hdr.copies = copies;
/* Query loaded media */
INFO("Querying loaded media\n");
ret = kodak605_get_media(ctx, media);
if (ret < 0)
return CUPS_BACKEND_FAILED;
/* Validate against supported media list */
for (num = 0 ; num < media->count; num++) {
if (media->entries[num].rows == ctx->hdr.rows &&
media->entries[num].cols == ctx->hdr.columns)
for (num = 0 ; num < ctx->media->count; num++) {
if (ctx->media->entries[num].rows == ctx->hdr.rows &&
ctx->media->entries[num].cols == ctx->hdr.columns)
break;
}
if (num == media->count) {
if (num == ctx->media->count) {
ERROR("Print size unsupported by media!\n");
return CUPS_BACKEND_HOLD;
}