4  * Copyright (c) 2003-2008 Fabrice Bellard
8  * in the Software without restriction, including without limitation the rights
13  * The above copyright notice and this permission notice shall be included in
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
47 #include "chardev/char-fd.h"
48 #include "chardev/char-parallel.h"
63     if (s->mode != mode) {  in pp_hw_mode()
65         if (ioctl(s->fd, PPSETMODE, &m) < 0) {  in pp_hw_mode()
68         s->mode = mode;  in pp_hw_mode()
76     int fd = drv->fd;  in pp_ioctl()
82             return -ENOTSUP;  in pp_ioctl()
89             return -ENOTSUP;  in pp_ioctl()
94             return -ENOTSUP;  in pp_ioctl()
104             return -ENOTSUP;  in pp_ioctl()
109             return -ENOTSUP;  in pp_ioctl()
115             return -ENOTSUP;  in pp_ioctl()
121             int n = read(fd, parg->buffer, parg->count);  in pp_ioctl()
122             if (n != parg->count) {  in pp_ioctl()
123                 return -EIO;  in pp_ioctl()
130             int n = read(fd, parg->buffer, parg->count);  in pp_ioctl()
131             if (n != parg->count) {  in pp_ioctl()
132                 return -EIO;  in pp_ioctl()
139             int n = write(fd, parg->buffer, parg->count);  in pp_ioctl()
140             if (n != parg->count) {  in pp_ioctl()
141                 return -EIO;  in pp_ioctl()
148             int n = write(fd, parg->buffer, parg->count);  in pp_ioctl()
149             if (n != parg->count) {  in pp_ioctl()
150                 return -EIO;  in pp_ioctl()
155         return -ENOTSUP;  in pp_ioctl()
167     drv->fd = fd;  in qemu_chr_open_pp_fd()
170         error_setg_errno(errp, errno, "not a parallel port");  in qemu_chr_open_pp_fd()
174     drv->mode = IEEE1284_MODE_COMPAT;  in qemu_chr_open_pp_fd()
195         if (ioctl(drv->fd, PPIGDATA, &b) < 0) {  in pp_ioctl()
196             return -ENOTSUP;  in pp_ioctl()
202         if (ioctl(drv->fd, PPISDATA, &b) < 0) {  in pp_ioctl()
203             return -ENOTSUP;  in pp_ioctl()
207         if (ioctl(drv->fd, PPIGCTRL, &b) < 0) {  in pp_ioctl()
208             return -ENOTSUP;  in pp_ioctl()
214         if (ioctl(drv->fd, PPISCTRL, &b) < 0) {  in pp_ioctl()
215             return -ENOTSUP;  in pp_ioctl()
219         if (ioctl(drv->fd, PPIGSTATUS, &b) < 0) {  in pp_ioctl()
220             return -ENOTSUP;  in pp_ioctl()
225         return -ENOTSUP;  in pp_ioctl()
236     drv->fd = fd;  in qemu_chr_open_pp_fd()
247     ChardevHostdev *parallel = backend->u.parallel.data;  in qmp_chardev_open_parallel()  local
250     fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);  in qmp_chardev_open_parallel()
261     ChardevHostdev *parallel;  in qemu_chr_parse_parallel()  local
264         error_setg(errp, "chardev: parallel: no device path given");  in qemu_chr_parse_parallel()
267     backend->type = CHARDEV_BACKEND_KIND_PARALLEL;  in qemu_chr_parse_parallel()
268     parallel = backend->u.parallel.data = g_new0(ChardevHostdev, 1);  in qemu_chr_parse_parallel()
269     qemu_chr_parse_common(opts, qapi_ChardevHostdev_base(parallel));  in qemu_chr_parse_parallel()
270     parallel->device = g_strdup(device);  in qemu_chr_parse_parallel()
277     cc->parse = qemu_chr_parse_parallel;  in char_parallel_class_init()
278     cc->open = qmp_chardev_open_parallel;  in char_parallel_class_init()
279     cc->chr_ioctl = pp_ioctl;  in char_parallel_class_init()
286     int fd = drv->fd;  in char_parallel_finalize()