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-rw-r--r--driver/hdm-usb/COPYING340
-rw-r--r--driver/hdm-usb/Makefile17
-rw-r--r--driver/hdm-usb/hdm_usb.c146
3 files changed, 445 insertions, 58 deletions
diff --git a/driver/hdm-usb/COPYING b/driver/hdm-usb/COPYING
new file mode 100644
index 0000000..6d45519
--- /dev/null
+++ b/driver/hdm-usb/COPYING
@@ -0,0 +1,340 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.) You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+ To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have. You must make sure that they, too, receive or can get the
+source code. And you must show them these terms so they know their
+rights.
+
+ We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+ Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software. If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
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+
+ Finally, any free program is threatened constantly by software
+patents. We wish to avoid the danger that redistributors of a free
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+program proprietary. To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ GNU GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License. The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language. (Hereinafter, translation is included without limitation in
+the term "modification".) Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope. The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+ 1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+ 2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+ a) You must cause the modified files to carry prominent notices
+ stating that you changed the files and the date of any change.
+
+ b) You must cause any work that you distribute or publish, that in
+ whole or in part contains or is derived from the Program or any
+ part thereof, to be licensed as a whole at no charge to all third
+ parties under the terms of this License.
+
+ c) If the modified program normally reads commands interactively
+ when run, you must cause it, when started running for such
+ interactive use in the most ordinary way, to print or display an
+ announcement including an appropriate copyright notice and a
+ notice that there is no warranty (or else, saying that you provide
+ a warranty) and that users may redistribute the program under
+ these conditions, and telling the user how to view a copy of this
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+
+These requirements apply to the modified work as a whole. If
+identifiable sections of that work are not derived from the Program,
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+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
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+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+ 3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+ a) Accompany it with the complete corresponding machine-readable
+ source code, which must be distributed under the terms of Sections
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+ years, to give any third party, for a charge no more than your
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+
+ 4. You may not copy, modify, sublicense, or distribute the Program
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+
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+
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+
+If any portion of this section is held invalid or unenforceable under
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+implemented by public license practices. Many people have made
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+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+ 8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
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+may add an explicit geographical distribution limitation excluding
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+
+ 9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation. If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+ 10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
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+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+ NO WARRANTY
+
+ 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+ 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+ Gnomovision version 69, Copyright (C) year name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/driver/hdm-usb/Makefile b/driver/hdm-usb/Makefile
new file mode 100644
index 0000000..0714f6b
--- /dev/null
+++ b/driver/hdm-usb/Makefile
@@ -0,0 +1,17 @@
+# Makefile
+#
+
+SRC := $(shell pwd)
+
+obj-m += hdm_usb.o
+CFLAGS_hdm_usb.o := -I$(src)/../../aim-network/files/ -I$(src)/../../mostcore/files
+
+all:
+ $(MAKE) -C $(KERNEL_SRC) M=$(SRC) modules
+
+modules_install:
+ $(MAKE) -C $(KERNEL_SRC) M=$(SRC) modules_install
+
+clean:
+ $(MAKE) -C $(KERNEL_SRC) M=$(SRC) clean
+
diff --git a/driver/hdm-usb/hdm_usb.c b/driver/hdm-usb/hdm_usb.c
index 8c88184..9ab744b 100644
--- a/driver/hdm-usb/hdm_usb.c
+++ b/driver/hdm-usb/hdm_usb.c
@@ -79,10 +79,12 @@ struct buf_anchor {
* struct most_dci_obj - Direct Communication Interface
* @kobj:position in sysfs
* @usb_device: pointer to the usb device
+ * @reg_addr: register address for arbitrary DCI access
*/
struct most_dci_obj {
struct kobject kobj;
struct usb_device *usb_device;
+ u16 reg_addr;
};
#define to_dci_obj(p) container_of(p, struct most_dci_obj, kobj)
@@ -324,10 +326,10 @@ static int hdm_poison_channel(struct most_interface *iface, int channel)
static int hdm_add_padding(struct most_dev *mdev, int channel, struct mbo *mbo)
{
struct most_channel_config *conf = &mdev->conf[channel];
- unsigned int j, num_frames, frame_size;
+ unsigned int frame_size = get_stream_frame_size(conf);
+ unsigned int j, num_frames;
u16 rd_addr, wr_addr;
- frame_size = get_stream_frame_size(conf);
if (!frame_size)
return -EIO;
num_frames = mbo->buffer_length / frame_size;
@@ -361,10 +363,10 @@ static int hdm_add_padding(struct most_dev *mdev, int channel, struct mbo *mbo)
static int hdm_remove_padding(struct most_dev *mdev, int channel,
struct mbo *mbo)
{
- unsigned int j, num_frames, frame_size;
struct most_channel_config *const conf = &mdev->conf[channel];
+ unsigned int frame_size = get_stream_frame_size(conf);
+ unsigned int j, num_frames;
- frame_size = get_stream_frame_size(conf);
if (!frame_size)
return -EIO;
num_frames = mbo->processed_length / USB_MTU;
@@ -801,17 +803,17 @@ static int hdm_update_netinfo(struct most_dev *mdev)
if (!is_valid_ether_addr(mdev->hw_addr)) {
if (drci_rd_reg(usb_device, DRCI_REG_HW_ADDR_HI, &hi) < 0) {
dev_err(dev, "Vendor request \"hw_addr_hi\" failed\n");
- return -1;
+ return -EFAULT;
}
if (drci_rd_reg(usb_device, DRCI_REG_HW_ADDR_MI, &mi) < 0) {
dev_err(dev, "Vendor request \"hw_addr_mid\" failed\n");
- return -1;
+ return -EFAULT;
}
if (drci_rd_reg(usb_device, DRCI_REG_HW_ADDR_LO, &lo) < 0) {
dev_err(dev, "Vendor request \"hw_addr_low\" failed\n");
- return -1;
+ return -EFAULT;
}
mutex_lock(&mdev->io_mutex);
@@ -826,7 +828,7 @@ static int hdm_update_netinfo(struct most_dev *mdev)
if (drci_rd_reg(usb_device, DRCI_REG_NI_STATE, &link) < 0) {
dev_err(dev, "Vendor request \"link status\" failed\n");
- return -1;
+ return -EFAULT;
}
mutex_lock(&mdev->io_mutex);
@@ -950,6 +952,10 @@ static struct usb_device_id usbid[] = {
struct most_dci_attribute most_dci_attr_##_name = \
__ATTR(_name, S_IRUGO | S_IWUSR, show_value, store_value)
+#define MOST_DCI_WO_ATTR(_name) \
+ struct most_dci_attribute most_dci_attr_##_name = \
+ __ATTR(_name, S_IWUSR, NULL, store_value)
+
/**
* struct most_dci_attribute - to access the attributes of a dci object
* @attr: attributes of a dci object
@@ -1026,45 +1032,68 @@ static void most_dci_release(struct kobject *kobj)
kfree(dci_obj);
}
+struct regs {
+ const char *name;
+ u16 reg;
+};
+
+const static struct regs ro_regs[] = {
+ { "ni_state", DRCI_REG_NI_STATE },
+ { "packet_bandwidth", DRCI_REG_PACKET_BW },
+ { "node_address", DRCI_REG_NODE_ADDR },
+ { "node_position", DRCI_REG_NODE_POS },
+};
+
+const static struct regs rw_regs[] = {
+ { "mep_filter", DRCI_REG_MEP_FILTER },
+ { "mep_hash0", DRCI_REG_HASH_TBL0 },
+ { "mep_hash1", DRCI_REG_HASH_TBL1 },
+ { "mep_hash2", DRCI_REG_HASH_TBL2 },
+ { "mep_hash3", DRCI_REG_HASH_TBL3 },
+ { "mep_eui48_hi", DRCI_REG_HW_ADDR_HI },
+ { "mep_eui48_mi", DRCI_REG_HW_ADDR_MI },
+ { "mep_eui48_lo", DRCI_REG_HW_ADDR_LO },
+};
+
+static int get_stat_reg_addr(const struct regs *regs, int size,
+ const char *name, u16 *reg_addr)
+{
+ int i;
+
+ for (i = 0; i < size; i++) {
+ if (!strcmp(name, regs[i].name)) {
+ *reg_addr = regs[i].reg;
+ return 0;
+ }
+ }
+ return -EFAULT;
+}
+
+#define get_static_reg_addr(regs, name, reg_addr) \
+ get_stat_reg_addr(regs, ARRAY_SIZE(regs), name, reg_addr)
+
static ssize_t show_value(struct most_dci_obj *dci_obj,
struct most_dci_attribute *attr, char *buf)
{
- u16 tmp_val;
+ const char *name = attr->attr.name;
+ u16 val;
u16 reg_addr;
int err;
- if (!strcmp(attr->attr.name, "ni_state"))
- reg_addr = DRCI_REG_NI_STATE;
- else if (!strcmp(attr->attr.name, "packet_bandwidth"))
- reg_addr = DRCI_REG_PACKET_BW;
- else if (!strcmp(attr->attr.name, "node_address"))
- reg_addr = DRCI_REG_NODE_ADDR;
- else if (!strcmp(attr->attr.name, "node_position"))
- reg_addr = DRCI_REG_NODE_POS;
- else if (!strcmp(attr->attr.name, "mep_filter"))
- reg_addr = DRCI_REG_MEP_FILTER;
- else if (!strcmp(attr->attr.name, "mep_hash0"))
- reg_addr = DRCI_REG_HASH_TBL0;
- else if (!strcmp(attr->attr.name, "mep_hash1"))
- reg_addr = DRCI_REG_HASH_TBL1;
- else if (!strcmp(attr->attr.name, "mep_hash2"))
- reg_addr = DRCI_REG_HASH_TBL2;
- else if (!strcmp(attr->attr.name, "mep_hash3"))
- reg_addr = DRCI_REG_HASH_TBL3;
- else if (!strcmp(attr->attr.name, "mep_eui48_hi"))
- reg_addr = DRCI_REG_HW_ADDR_HI;
- else if (!strcmp(attr->attr.name, "mep_eui48_mi"))
- reg_addr = DRCI_REG_HW_ADDR_MI;
- else if (!strcmp(attr->attr.name, "mep_eui48_lo"))
- reg_addr = DRCI_REG_HW_ADDR_LO;
- else
- return -EIO;
+ if (!strcmp(name, "arb_address"))
+ return snprintf(buf, PAGE_SIZE, "%04x\n", dci_obj->reg_addr);
+
+ if (!strcmp(name, "arb_value"))
+ reg_addr = dci_obj->reg_addr;
+ else if (get_static_reg_addr(ro_regs, name, &reg_addr) &&
+ get_static_reg_addr(rw_regs, name, &reg_addr))
+ return -EFAULT;
- err = drci_rd_reg(dci_obj->usb_device, reg_addr, &tmp_val);
+ err = drci_rd_reg(dci_obj->usb_device, reg_addr, &val);
if (err < 0)
return err;
- return snprintf(buf, PAGE_SIZE, "%04x\n", tmp_val);
+ return snprintf(buf, PAGE_SIZE, "%04x\n", val);
}
static ssize_t store_value(struct most_dci_obj *dci_obj,
@@ -1073,31 +1102,26 @@ static ssize_t store_value(struct most_dci_obj *dci_obj,
{
u16 val;
u16 reg_addr;
- int err;
-
- if (!strcmp(attr->attr.name, "mep_filter"))
- reg_addr = DRCI_REG_MEP_FILTER;
- else if (!strcmp(attr->attr.name, "mep_hash0"))
- reg_addr = DRCI_REG_HASH_TBL0;
- else if (!strcmp(attr->attr.name, "mep_hash1"))
- reg_addr = DRCI_REG_HASH_TBL1;
- else if (!strcmp(attr->attr.name, "mep_hash2"))
- reg_addr = DRCI_REG_HASH_TBL2;
- else if (!strcmp(attr->attr.name, "mep_hash3"))
- reg_addr = DRCI_REG_HASH_TBL3;
- else if (!strcmp(attr->attr.name, "mep_eui48_hi"))
- reg_addr = DRCI_REG_HW_ADDR_HI;
- else if (!strcmp(attr->attr.name, "mep_eui48_mi"))
- reg_addr = DRCI_REG_HW_ADDR_MI;
- else if (!strcmp(attr->attr.name, "mep_eui48_lo"))
- reg_addr = DRCI_REG_HW_ADDR_LO;
- else
- return -EIO;
+ const char *name = attr->attr.name;
+ int err = kstrtou16(buf, 16, &val);
- err = kstrtou16(buf, 16, &val);
if (err)
return err;
+ if (!strcmp(name, "arb_address")) {
+ dci_obj->reg_addr = val;
+ return count;
+ }
+
+ if (!strcmp(name, "arb_value")) {
+ reg_addr = dci_obj->reg_addr;
+ } else if (!strcmp(name, "sync_ep")) {
+ reg_addr = DRCI_REG_BASE + DRCI_COMMAND + val * 16;
+ val = 1;
+ } else if (get_static_reg_addr(ro_regs, name, &reg_addr)) {
+ return -EFAULT;
+ }
+
err = drci_wr_reg(dci_obj->usb_device, reg_addr, val);
if (err < 0)
return err;
@@ -1109,6 +1133,7 @@ static MOST_DCI_RO_ATTR(ni_state);
static MOST_DCI_RO_ATTR(packet_bandwidth);
static MOST_DCI_RO_ATTR(node_address);
static MOST_DCI_RO_ATTR(node_position);
+static MOST_DCI_WO_ATTR(sync_ep);
static MOST_DCI_ATTR(mep_filter);
static MOST_DCI_ATTR(mep_hash0);
static MOST_DCI_ATTR(mep_hash1);
@@ -1117,6 +1142,8 @@ static MOST_DCI_ATTR(mep_hash3);
static MOST_DCI_ATTR(mep_eui48_hi);
static MOST_DCI_ATTR(mep_eui48_mi);
static MOST_DCI_ATTR(mep_eui48_lo);
+static MOST_DCI_ATTR(arb_address);
+static MOST_DCI_ATTR(arb_value);
/**
* most_dci_def_attrs - array of default attribute files of the dci object
@@ -1126,6 +1153,7 @@ static struct attribute *most_dci_def_attrs[] = {
&most_dci_attr_packet_bandwidth.attr,
&most_dci_attr_node_address.attr,
&most_dci_attr_node_position.attr,
+ &most_dci_attr_sync_ep.attr,
&most_dci_attr_mep_filter.attr,
&most_dci_attr_mep_hash0.attr,
&most_dci_attr_mep_hash1.attr,
@@ -1134,6 +1162,8 @@ static struct attribute *most_dci_def_attrs[] = {
&most_dci_attr_mep_eui48_hi.attr,
&most_dci_attr_mep_eui48_mi.attr,
&most_dci_attr_mep_eui48_lo.attr,
+ &most_dci_attr_arb_address.attr,
+ &most_dci_attr_arb_value.attr,
NULL,
};