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| author | Paul Kocialkowski <contact@paulk.fr> | 2014-08-06 12:37:31 +0200 |
|---|---|---|
| committer | Paul Kocialkowski <contact@paulk.fr> | 2014-08-06 12:37:31 +0200 |
| commit | ffda67f121bc99de57031344d75ee1445bc9dd6f (patch) | |
| tree | 48f570cf7e1fc11a0380241419794e02d2c33d69 /samsung-ipc | |
| parent | 6f0dca4789a86efba377b34a7c780c68cf74671b (diff) | |
| download | external_libsamsung-ipc-ffda67f121bc99de57031344d75ee1445bc9dd6f.zip external_libsamsung-ipc-ffda67f121bc99de57031344d75ee1445bc9dd6f.tar.gz external_libsamsung-ipc-ffda67f121bc99de57031344d75ee1445bc9dd6f.tar.bz2 | |
xmm626: Check modem status on read and write
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Diffstat (limited to 'samsung-ipc')
| -rw-r--r-- | samsung-ipc/devices/xmm626/xmm626_sec_modem.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/samsung-ipc/devices/xmm626/xmm626_sec_modem.c b/samsung-ipc/devices/xmm626/xmm626_sec_modem.c index ffe46a5..33b115d 100644 --- a/samsung-ipc/devices/xmm626/xmm626_sec_modem.c +++ b/samsung-ipc/devices/xmm626/xmm626_sec_modem.c @@ -436,11 +436,16 @@ int xmm626_sec_modem_close(int fd) int xmm626_sec_modem_read(int fd, void *buffer, size_t length) { + int status; int rc; if (fd < 0 || buffer == NULL || length <= 0) return -1; + status = ioctl(fd, IOCTL_MODEM_STATUS, 0); + if (status != STATE_ONLINE && status != STATE_BOOTING) + return -1; + rc = read(fd, buffer, length); return rc; @@ -448,11 +453,16 @@ int xmm626_sec_modem_read(int fd, void *buffer, size_t length) int xmm626_sec_modem_write(int fd, const void *buffer, size_t length) { + int status; int rc; if (fd < 0 || buffer == NULL || length <= 0) return -1; + status = ioctl(fd, IOCTL_MODEM_STATUS, 0); + if (status != STATE_ONLINE && status != STATE_BOOTING) + return -1; + rc = write(fd, buffer, length); return rc; @@ -460,9 +470,9 @@ int xmm626_sec_modem_write(int fd, const void *buffer, size_t length) int xmm626_sec_modem_poll(int fd, struct timeval *timeout) { + int status; fd_set fds; int rc; - int status; if (fd < 0) return -1; @@ -474,7 +484,7 @@ int xmm626_sec_modem_poll(int fd, struct timeval *timeout) if (FD_ISSET(fd, &fds)) { status = ioctl(fd, IOCTL_MODEM_STATUS, 0); if (status != STATE_ONLINE && status != STATE_BOOTING) - return 0; + return -1; } return rc; |