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Diffstat (limited to 'usr/src/uts/common/io/usb/usba/parser.c')
-rw-r--r--usr/src/uts/common/io/usb/usba/parser.c145
1 files changed, 47 insertions, 98 deletions
diff --git a/usr/src/uts/common/io/usb/usba/parser.c b/usr/src/uts/common/io/usb/usba/parser.c
index 965113374c..f81bcfdb39 100644
--- a/usr/src/uts/common/io/usb/usba/parser.c
+++ b/usr/src/uts/common/io/usb/usba/parser.c
@@ -23,6 +23,7 @@
* Use is subject to license terms.
*
* Copyright 2014 Garrett D'Amore <garrett@damore.org>
+ * Copyright 2019, Joyent, Inc.
*/
@@ -45,16 +46,13 @@ extern usba_cfg_pwr_descr_t default_cfg_power;
extern usba_if_pwr_descr_t default_if_power;
size_t
-usb_parse_data(char *format,
- uchar_t *data,
- size_t datalen,
- void *structure,
- size_t structlen)
+usb_parse_data(char *format, const uchar_t *data, size_t datalen,
+ void *structure, size_t structlen)
{
int fmt;
int counter = 1;
int multiplier = 0;
- uchar_t *dataend = data + datalen;
+ const uchar_t *dataend = data + datalen;
char *structstart = (char *)structure;
void *structend = (void *)((intptr_t)structstart + structlen);
@@ -170,11 +168,8 @@ usb_parse_data(char *format,
size_t
-usb_parse_CV_descr(char *format,
- uchar_t *data,
- size_t datalen,
- void *structure,
- size_t structlen)
+usb_parse_CV_descr(char *format, const uchar_t *data, size_t datalen,
+ void *structure, size_t structlen)
{
return (usb_parse_data(format, data, datalen, structure,
structlen));
@@ -186,16 +181,12 @@ usb_parse_CV_descr(char *format,
* type descr_type, unless the end of the buffer or a descriptor
* of type stop_descr_type1 or stop_descr_type2 is encountered first.
*/
-static uchar_t *
-usb_nth_descr(uchar_t *buf,
- size_t buflen,
- int descr_type,
- uint_t n,
- int stop_descr_type1,
- int stop_descr_type2)
+static const uchar_t *
+usb_nth_descr(const uchar_t *buf, size_t buflen, int descr_type, uint_t n,
+ int stop_descr_type1, int stop_descr_type2)
{
- uchar_t *bufstart = buf;
- uchar_t *bufend = buf + buflen;
+ const uchar_t *bufstart = buf;
+ const uchar_t *bufend = buf + buflen;
if (buf == NULL) {
@@ -229,10 +220,8 @@ usb_nth_descr(uchar_t *buf,
size_t
-usb_parse_dev_descr(uchar_t *buf, /* from GET_DESCRIPTOR(DEVICE) */
- size_t buflen,
- usb_dev_descr_t *ret_descr,
- size_t ret_buf_len)
+usb_parse_dev_descr(const uchar_t *buf, size_t buflen,
+ usb_dev_descr_t *ret_descr, size_t ret_buf_len)
{
if ((buf == NULL) || (ret_descr == NULL) ||
(buflen < 2) || (buf[1] != USB_DESCR_TYPE_DEV)) {
@@ -246,10 +235,8 @@ usb_parse_dev_descr(uchar_t *buf, /* from GET_DESCRIPTOR(DEVICE) */
size_t
-usb_parse_cfg_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */
- size_t buflen,
- usb_cfg_descr_t *ret_descr,
- size_t ret_buf_len)
+usb_parse_cfg_descr(const uchar_t *buf, size_t buflen,
+ usb_cfg_descr_t *ret_descr, size_t ret_buf_len)
{
if ((buf == NULL) || (ret_descr == NULL) ||
(buflen < 2) || (buf[1] != USB_DESCR_TYPE_CFG)) {
@@ -263,13 +250,10 @@ usb_parse_cfg_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */
size_t
-usba_parse_cfg_pwr_descr(
- uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */
- size_t buflen,
- usba_cfg_pwr_descr_t *ret_descr,
- size_t ret_buf_len)
+usba_parse_cfg_pwr_descr(const uchar_t *buf, size_t buflen,
+ usba_cfg_pwr_descr_t *ret_descr, size_t ret_buf_len)
{
- uchar_t *bufend = buf + buflen;
+ const uchar_t *bufend = buf + buflen;
if ((buf == NULL) || (ret_descr == NULL)) {
@@ -298,13 +282,10 @@ usba_parse_cfg_pwr_descr(
size_t
-usb_parse_ia_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */
- size_t buflen,
- size_t first_if,
- usb_ia_descr_t *ret_descr,
- size_t ret_buf_len)
+usb_parse_ia_descr(const uchar_t *buf, size_t buflen, size_t first_if,
+ usb_ia_descr_t *ret_descr, size_t ret_buf_len)
{
- uchar_t *bufend = buf + buflen;
+ const uchar_t *bufend = buf + buflen;
if ((buf == NULL) || (ret_descr == NULL)) {
@@ -332,14 +313,10 @@ usb_parse_ia_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */
size_t
-usb_parse_if_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */
- size_t buflen,
- uint_t if_number,
- uint_t alt_if_setting,
- usb_if_descr_t *ret_descr,
- size_t ret_buf_len)
+usb_parse_if_descr(const uchar_t *buf, size_t buflen, uint_t if_number,
+ uint_t alt_if_setting, usb_if_descr_t *ret_descr, size_t ret_buf_len)
{
- uchar_t *bufend = buf + buflen;
+ const uchar_t *bufend = buf + buflen;
if ((buf == NULL) || (ret_descr == NULL)) {
@@ -367,14 +344,10 @@ usb_parse_if_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */
}
size_t
-usba_parse_if_pwr_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */
- size_t buflen,
- uint_t if_number,
- uint_t alt_if_setting,
- usba_if_pwr_descr_t *ret_descr,
- size_t ret_buf_len)
+usba_parse_if_pwr_descr(const uchar_t *buf, size_t buflen, uint_t if_number,
+ uint_t alt_if_setting, usba_if_pwr_descr_t *ret_descr, size_t ret_buf_len)
{
- uchar_t *bufend = buf + buflen;
+ const uchar_t *bufend = buf + buflen;
if ((buf == NULL) || (ret_descr == NULL)) {
@@ -422,15 +395,11 @@ usba_parse_if_pwr_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */
* the first endpoint
*/
size_t
-usb_parse_ep_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */
- size_t buflen,
- uint_t if_number,
- uint_t alt_if_setting,
- uint_t ep_index,
- usb_ep_descr_t *ret_descr,
- size_t ret_buf_len)
+usb_parse_ep_descr(const uchar_t *buf, size_t buflen, uint_t if_number,
+ uint_t alt_if_setting, uint_t ep_index, usb_ep_descr_t *ret_descr,
+ size_t ret_buf_len)
{
- uchar_t *bufend = buf + buflen;
+ const uchar_t *bufend = buf + buflen;
if ((buf == NULL) || (ret_descr == NULL)) {
@@ -473,14 +442,12 @@ usb_parse_ep_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */
*/
/*ARGSUSED*/
size_t
-usba_ascii_string_descr(uchar_t *buf, /* from GET_DESCRIPTOR(STRING) */
- size_t buflen,
- char *ret_descr,
- size_t ret_buf_len)
+usba_ascii_string_descr(const uchar_t *buf, size_t buflen, char *ret_descr,
+ size_t ret_buf_len)
{
- int i = 1;
- char *retstart = ret_descr;
- uchar_t *bufend = buf + buflen;
+ int i = 1;
+ char *retstart = ret_descr;
+ const uchar_t *bufend = buf + buflen;
if ((buf == NULL) || (ret_descr == NULL) ||
(ret_buf_len == 0) || (buflen < 2) ||
@@ -501,15 +468,10 @@ usba_ascii_string_descr(uchar_t *buf, /* from GET_DESCRIPTOR(STRING) */
size_t
-usb_parse_CV_cfg_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */
- size_t buflen,
- char *fmt,
- uint_t descr_type,
- uint_t descr_index,
- void *ret_descr,
- size_t ret_buf_len)
+usb_parse_CV_cfg_descr(const uchar_t *buf, size_t buflen, char *fmt,
+ uint_t descr_type, uint_t descr_index, void *ret_descr, size_t ret_buf_len)
{
- uchar_t *bufend = buf + buflen;
+ const uchar_t *bufend = buf + buflen;
if ((buf == NULL) || (ret_descr == NULL) || (fmt == NULL) ||
(buflen < 2) || ((buf = usb_nth_descr(buf, buflen, descr_type,
@@ -525,17 +487,11 @@ usb_parse_CV_cfg_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */
size_t
-usb_parse_CV_if_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */
- size_t buflen,
- char *fmt,
- uint_t if_number,
- uint_t alt_if_setting,
- uint_t descr_type,
- uint_t descr_index,
- void *ret_descr,
- size_t ret_buf_len)
+usb_parse_CV_if_descr(const uchar_t *buf, size_t buflen, char *fmt,
+ uint_t if_number, uint_t alt_if_setting, uint_t descr_type,
+ uint_t descr_index, void *ret_descr, size_t ret_buf_len)
{
- uchar_t *bufend = buf + buflen;
+ const uchar_t *bufend = buf + buflen;
if ((buf == NULL) || (ret_descr == NULL) || (fmt == NULL)) {
@@ -570,18 +526,11 @@ usb_parse_CV_if_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */
size_t
-usb_parse_CV_ep_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */
- size_t buflen,
- char *fmt,
- uint_t if_number,
- uint_t alt_if_setting,
- uint_t ep_index,
- uint_t descr_type,
- uint_t descr_index,
- void *ret_descr,
- size_t ret_buf_len)
+usb_parse_CV_ep_descr(const uchar_t *buf, size_t buflen, char *fmt,
+ uint_t if_number, uint_t alt_if_setting, uint_t ep_index, uint_t descr_type,
+ uint_t descr_index, void *ret_descr, size_t ret_buf_len)
{
- uchar_t *bufend = buf + buflen;
+ const uchar_t *bufend = buf + buflen;
if ((buf == NULL) || (ret_descr == NULL) || (fmt == NULL)) {
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-10 18:28:37 +0000