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utils/hwstub: completely rework the protocol, drop unused features

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The protocol has evolved a lot during the 2.x.y lifetime, bringing more
features which later got unused. This commit removes all the unused stuff
and simplifies everything:
- drop the feature mask: everything is mandatory or stalled on error
- remove the info request and put all static information in standard USB
  descriptors which are part of the configuration descriptor (and can be
  retrieved using the standard GetDescriptor request).
- remove the USB interface, we had only one anyway
- remove all endpoint descriptors
- remove the exit/atexit stuff, it never worked as intended anyway
- update the hwstub library and make it able to handle any device
- update the tools (mostly renaming and removing of code)

Change-Id: I1872bba7f4177fc3891180e8f944aab88f5bde31
This commit is contained in:
Amaury Pouly 2014-02-04 00:10:41 +01:00
parent 6d64111b3c
commit c17d30f204
10 changed files with 279 additions and 653 deletions
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23
utils/hwstub/lib/hwstub.h
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@ -34,22 +34,15 @@ extern "C" {
*
*/
struct hwstub_device_t
{
libusb_device_handle *handle;
int intf;
int bulk_in;
int bulk_out;
int int_in;
};
struct hwstub_device_t;
/* Requires then ->handle field only. Returns 0 on success */
int hwstub_probe(struct hwstub_device_t *dev);
/* Returns 0 on success */
/* Returns NULL on error */
struct hwstub_device_t *hwstub_open(libusb_device_handle *handle);
/* Returns 0 on success. Does *NOT* close the usb handle */
int hwstub_release(struct hwstub_device_t *dev);
/* Returns number of bytes filled */
int hwstub_get_info(struct hwstub_device_t *dev, uint16_t idx, void *info, size_t sz);
int hwstub_get_desc(struct hwstub_device_t *dev, uint16_t desc, void *info, size_t sz);
/* Returns number of bytes filled */
int hwstub_get_log(struct hwstub_device_t *dev, void *buf, size_t sz);
/* Returns number of bytes written/read or <0 on error */
@ -57,12 +50,6 @@ int hwstub_rw_mem(struct hwstub_device_t *dev, int read, uint32_t addr, void *bu
/* Returns <0 on error */
int hwstub_call(struct hwstub_device_t *dev, uint32_t addr);
int hwstub_jump(struct hwstub_device_t *dev, uint32_t addr);
/* Returns <0 on error */
int hwstub_atexit(struct hwstub_device_t *dev, int action);
int hwstub_exit(struct hwstub_device_t *dev);
const char *hwstub_get_product_string(struct usb_resp_info_stmp_t *stmp);
const char *hwstub_get_rev_string(struct usb_resp_info_stmp_t *stmp);
#ifdef __cplusplus
} // extern "C"