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Omnimaga => Our Projects => Ndless => Topic started by: gudenau on September 16, 2013, 08:16:02 pm

Title: [Solved] Crashing and I Do Not Know Why
Post by: gudenau on September 16, 2013, 08:16:02 pm

Edit{
Forgot nl_set_resident();
}

So, I am trying to get a hang of the drivers, so I am making a simple one. When I plug the 360 controller in, it crashes my calculator, I thick it is in attach, don't know for sure.

main.c:

Code: [Select]

#include <os.h>
#include <usbdi.h>
#include <usb.h>
#include <nspireio2.h>

int main(void) {
assert_ndless_rev(750);

register360();

nl_no_scr_redraw();
nio_grid_puts(0, 0, 12, 1, "360 drivers installed!", is_cx ? NIO_COLOR_BLACK : NIO_COLOR_WHITE, is_cx ? NIO_COLOR_WHITE : NIO_COLOR_BLACK);

return 0;
}

main.h

Code: [Select]

#include <os.h>
#include <nspireio2.h>

/* handler.c */
void register360(void);
handler.c

Code: [Select]

#include <os.h>
#include <usbdi.h>
#include <usb.h>
#include <nspireio2.h>
#include "main.h"

static int match(device_t self) {
struct usb_attach_arg *uaa = device_get_ivars(self);

if (!uaa->iface){
return UMATCH_NONE;
}

usb_interface_descriptor_t *id = usbd_get_interface_descriptor(uaa->iface);

if (!id){
return UMATCH_NONE;
}

if (id->bInterfaceClass == UICLASS_VENDOR &&
id->bInterfaceSubClass == UISUBCLASS_XBOX360_CONTROLLER &&
id->bInterfaceProtocol == UIPROTO_XBOX360_GAMEPAD){
return UMATCH_IFACECLASS;
}else{
return UMATCH_NONE;
}
}

struct softc_360 {
// Standered
device_t sc_dev;
usbd_interface_handle sc_iface;
usbd_pipe_handle sc_intrpipe;
int sc_ep_addr;
struct s_usb_pipe_buf sc_ibuf;
int sc_isize;
int sc_enabled;

// Device specific
int16_t buttons;
signed char lTrigger;
signed char rTrigger;
int16_t leftX;
int16_t leftY;
int16_t rightX;
int16_t rightY;
};

struct report_360 {
char unused[2];
int16_t buttons;
signed char lTrigger;
signed char rTrigger;
int16_t leftX;
int16_t leftY;
int16_t rightX;
int16_t rightY;
char unused2[6];
};

static void intr_360(usbd_xfer_handle __attribute__((unused)) xfer, usbd_private_handle addr, usbd_status status){
struct softc_360 *sc = addr;
struct report_360 *ibuf = (struct report_360 *)sc->sc_ibuf.buf;

if(status != USBD_NORMAL_COMPLETION){
return;
}

sc->buttons = ibuf->buttons;
sc->lTrigger = ibuf->lTrigger;
sc->rTrigger = ibuf->rTrigger;
sc->leftX = ibuf->leftX;
sc->leftY = ibuf->leftY;
sc->rightX = ibuf->rightX;
sc->rightY = ibuf->rightY;
}

static int attach(device_t self){
struct softc_360 *sc = device_get_softc(self);
struct usb_attach_arg *uaa = device_get_ivars(self);
usbd_status err;

if(sc == NULL){
return ENXIO;
}

sc->sc_iface = uaa->iface;
sc->sc_dev = self;
usb_endpoint_descriptor_t *ed = usbd_interface2endpoint_descriptor(sc->sc_iface, 0);
sc->sc_ep_addr = ed->bEndpointAddress;
sc->sc_isize = sizeof(struct softc_360);

usbd_set_protocol(sc->sc_iface, 0);
usbd_set_idle(sc->sc_iface, 0, 0);

sc->sc_ibuf.dummy1 = 0;
sc->sc_ibuf.dummy2 = 0;
sc->sc_ibuf.buf = malloc(sc->sc_isize);

if(!sc->sc_ibuf.buf){
return ENXIO;
}

err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ep_addr, USBD_SHORT_XFER_OK, &sc->sc_intrpipe, sc, &sc->sc_ibuf, sc->sc_isize, intr_360, USBD_DEFAULT_INTERVAL);

if(err){
free(sc->sc_ibuf.buf);
return ENXIO;
}

sc->sc_enabled = 1;
return 0;
}

static int detach(device_t self){
struct softc_360 *sc = device_get_softc(self);

if(sc->sc_enabled){
usbd_abort_pipe(sc->sc_intrpipe);
usbd_close_pipe(sc->sc_intrpipe);
free(sc->sc_ibuf.buf);
sc->sc_enabled = 0;
}

return 0;
}

static int (*methods[])(device_t) = {match, attach, detach, NULL};

void register360(void){
nl_relocdata((unsigned*)methods, sizeof(methods) / sizeof(methods[0]) - 1);
usb_register_driver(2, methods, "c360", 0, sizeof(struct softc_360));
}
Any help?

Title: Re: Crashing and I Do Not Know Why
Post by: ExtendeD on September 17, 2013, 03:03:41 am

Nice to see a new third party USB driver for the TI-Nspire :)
Does it crash when plugging in an other USB device?
To pinpoint the issue you should either use nspireio or the on-calc debugger ODB if you are familiar with ARM assembly: http://ndlessly.wordpress.com/2012/04/09/introducing-ocd-the-ti-nspire-on-calc-debugger/ (untested on CX, it should probably be recompiled with the latest nspireio).

Title: Re: Crashing and I Do Not Know Why
Post by: gudenau on September 18, 2013, 02:11:29 pm

Let me check, forgot about that!

Edit:
Yep, still crashes. :-/

Title: Re: Crashing and I Do Not Know Why
Post by: gudenau on September 19, 2013, 01:56:04 pm

Crashes with and without hidn by the way.

Title: Re: Crashing and I Do Not Know Why
Post by: Legimet on September 19, 2013, 06:37:18 pm

As ExtendeD said, either use printf debugging with nspireio or use the OCD debugger (http://ndlessly.wordpress.com/2012/04/09/introducing-ocd-the-ti-nspire-on-calc-debugger/) to find where it crashes.

And instead of double posting, click the modify button to edit your post. :)

Title: Re: Crashing and I Do Not Know Why
Post by: gudenau on September 20, 2013, 08:52:26 pm

It had been a while. I am trying to get a good thing going for serial.

Edit:
Forgot nl_set_resident();