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authorPatrick Georgi <pgeorgi@google.com>2015-06-18 00:15:00 +0200
committerPatrick Georgi <pgeorgi@google.com>2015-06-23 08:20:45 +0200
commitf4227c4b01840c092b5431cbe6d92de282fe5628 (patch)
tree633273d321aa2cef3666f93fd39fe27ee11e671c /payloads/libpayload/include
parent68f42be887fa0d98400babf30c1738e580d05f67 (diff)
libpayload udc: add interface to add string descriptors
They're ASCII only, with only one language at a time, but they should be good enough to report device names and serial numbers. BUG=none BRANCH=none TEST=with depthcharge CL, check dmesg on the host device Change-Id: If888e05b2f372f7f0f43fadb108ca7ef4ed3b7c1 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: f0bc4242057d3edc4f4796ebeed2d98d89d60a1d Original-Change-Id: Ibe42f1b49f412e5482cebb7ebe20f6034352fd12 Original-Signed-off-by: Patrick Georgi <pgeorgi@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/278300 Original-Tested-by: Patrick Georgi <pgeorgi@chromium.org> Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org> Original-Commit-Queue: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/10626 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'payloads/libpayload/include')
-rw-r--r--payloads/libpayload/include/udc/udc.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/payloads/libpayload/include/udc/udc.h b/payloads/libpayload/include/udc/udc.h
index 7987c51286..99cbb1b7eb 100644
--- a/payloads/libpayload/include/udc/udc.h
+++ b/payloads/libpayload/include/udc/udc.h
@@ -103,6 +103,22 @@ struct usbdev_ctrl {
struct usbdev_configuration *config);
/**
+ * Add a set of strings to use for string descriptors.
+ *
+ * 's' must point to an array of strings of which the first
+ * element is unused, with at most 255 elements.
+ *
+ * 'm' is the size of 'strings' (ie. the index of the last entry).
+ *
+ * 'l' is the USB language code, of which some are defined below,
+ * eg. LANG_EN_US.
+ *
+ * For now, only one language is ever exposed: Calling add_strings overwrites
+ * older configuration.
+ */
+ void (*add_strings)(unsigned short l, unsigned char m, const char **s);
+
+ /**
* Add packet to process by the controller.
* zlp: zero length packet, if such a termination is necessary
* autofree: free data after use
@@ -136,8 +152,13 @@ struct usbdev_ctrl {
void (*free_data)(void *);
};
+#define LANG_DE_DE 0x0407
+#define LANG_EN_US 0x0409
+
void udc_add_gadget(struct usbdev_ctrl *this,
struct usbdev_configuration *config);
+void udc_add_strings(unsigned short id, unsigned char count,
+ const char *strings[]);
void udc_handle_setup(struct usbdev_ctrl *this, int ep, dev_req_t *dr);
#endif