Added full RT-Linux POSIX interface to LinCAN driver, needs preparation of RT tests.

[lincan.git] / lincan / src / ioctl_rtl.c

diff --git a/lincan/src/ioctl_rtl.c b/lincan/src/ioctl_rtl.c
new file mode 100644 (file)
index 0000000..449b345
--- /dev/null
+++ b/lincan/src/ioctl_rtl.c
@@ -0,0 +1,108 @@
+/* ioctl.c
+ * Linux CAN-bus device driver.
+ * Written by Arnaud Westenberg email:arnaud@wanadoo.nl
+ * Rewritten for new CAN queues by Pavel Pisa - OCERA team member
+ * email:pisa@cmp.felk.cvut.cz
+ * This software is released under the GPL-License.
+ * Version lincan-0.2  9 Jul 2003
+ */
+
+#ifdef CAN_WITH_RTL
+
+#include "../include/can.h"
+#include "../include/can_sysdep.h"
+#include "../include/main.h"
+
+#include <rtl_posixio.h>
+#include "../include/can_iortl.h"
+
+
+int can_ioctl_rtl_posix(struct rtl_file *fptr, unsigned int cmd, unsigned long arg)
+{
+       struct canuser_t *canuser =
+               (struct canuser_t *)can_get_rtl_file_private_data(fptr);
+       int i=0;
+       unsigned short channel=0;
+       unsigned btr0=0, btr1=0;
+       struct msgobj_t *obj;
+       struct chip_t *chip;
+       struct canque_ends_t *qends;
+       
+       if(!canuser || (canuser->magic != CAN_USER_MAGIC)){
+               CANMSG("can_ioctl_: bad canuser magic\n");
+               return -ENODEV;
+       }
+       
+       obj = canuser->msgobj;
+       if (obj == NULL) {
+               CANMSG("Could not assign buffer structure\n");
+               return -1;
+       }
+
+       qends = canuser->qends;
+       chip = obj->hostchip;
+       if (chip == NULL) {
+               CANMSG("Device is not correctly configured.\n");
+               CANMSG("Please reload the driver.\n");
+               return -1;
+       }
+
+       switch (cmd) {
+               case STAT: {
+                       for (i=0x0; i<0x100; i++)
+                               CANMSG("0x%x is 0x%x\n",i,can_read_reg(chip,i));
+                       break;
+               }
+               case CMD_START: {
+                       if (chip->chipspecops->start_chip(chip))
+                               return -1;
+                       break;
+               }
+               case CMD_STOP: {
+                       if (chip->chipspecops->stop_chip(chip))
+                               return -1;
+                       break;
+               }
+               case CANQUE_FLUSH: {
+                       canque_flush(canuser->rx_edge0);
+                       break;
+               }
+               case CONF_FILTER: {
+                       if(canuser->rx_edge0){
+                               canque_set_filt(canuser->rx_edge0, arg, ~0, 0);
+                       }
+
+                       break;
+               }
+               
+               case CANQUE_FILTER: {
+                       struct canfilt_t canfilt;
+                       copy_from_user(&canfilt, (void*)arg, sizeof(struct canfilt_t));
+                       if(canuser->rx_edge0){
+                               canque_set_filt(canuser->rx_edge0, canfilt.id, canfilt.mask, canfilt.flags);
+                       }
+                       break;
+               }
+
+               case CONF_BAUD: {
+                       channel = arg & 0xff;
+                       btr0 = (arg >> 8) & 0xff;
+                       btr1 = (arg >> 16) & 0xff;
+
+                       if (chip->chipspecops->set_btregs(chip, btr0, btr1)) {
+                               CANMSG("Error setting bit timing registers\n");
+                               return -1;
+                       }
+                       break;
+               }
+               default: {
+                       CANMSG("Not a valid ioctl command\n");
+                       return -EINVAL;
+               }
+               
+       }
+
+       return 0;
+}
+
+#endif /*CAN_WITH_RTL*/