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* usb: print number of skipped OTG controllers when scanningAhmad Fatoum2024-02-291-0/+14
| | | | | | | | | | | | I often get confused by running usb and wondering why devices behind unconfigured OTG controllers are not enumerated. Improve the user experience by printing a message when doing a USB scan while some OTG controllers are not yet configured (i.e. the otg.mode device parameter hasn't been set to "peripheral" or "host"). Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20240228160518.1589193-6-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: core: replace calls to strerror with %pe format specifierAhmad Fatoum2024-02-201-3/+3
| | | | | | | | | | printf(), and by extension dev_err(), already has built-in support for formatting error codes, so make use of that instead of manual use of strerror(). Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20240219172108.3780861-1-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: make sure dma buffers are properly allocatedDenis Orlov2023-06-301-6/+10
| | | | | | | | | | | | | When we are doing dma_map/unmap we will end up clearing caches. As we can only do that with the granularity of a cache line, we must ensure that the corresponding buffers are properly aligned, as otherwise we may accidentally overwrite some data that happens to reside in the same cache line. This is exactly what dma_alloc() is for, so use that for buffers which we are going to map for dma. Signed-off-by: Denis Orlov <denorl2009@gmail.com> Link: https://lore.barebox.org/20230629195718.14416-3-denorl2009@gmail.com Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: move include files to place where Linux has themSascha Hauer2023-03-204-8/+8
| | | | | | | | | For easier patch merging and comparison with Linux move the usb gadget files to where Linux has them. For now do a plain git mv include/usb include/linux/usb, eventhough there might be some files which are purely barebox specific. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: misc: add support for new OF onboard hub bindingAhmad Fatoum2023-02-211-0/+2
| | | | | | | | | | | | The new binding allows describing hubs that lacks a control bus (e.g. I2C) in the DT and thus replaces the ugly hack of specifying USB hub resets as gpio-hogs. It's already in use for boards we support, like the STM32MP13/5 Discovery kits and will be useful for the i.MX8MP Debix board, so port over the driver from Linux. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20230217202620.2882141-1-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Rename struct driver_d to driverSascha Hauer2023-01-101-1/+1
| | | | | | | | | | | The '_d' suffix was originally meant to distinguish barebox struct names from Linux struct names. struct driver doesn't exist in Linux, so we can rename it and remove the meaningless suffix. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Marco Felsch <m.felsch@pengutronix.de> Link: https://lore.barebox.org/20221214123512.189688-4-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Rename struct device_d to deviceSascha Hauer2023-01-102-5/+5
| | | | | | | | | | | | | The '_d' suffix was originally introduced in case we want to import Linux struct device as a separate struct into barebox. Over time it became clear that this won't happen, instead barebox struct device_d is basically the same as Linux struct device. Rename the struct name accordingly to make porting Linux code easier. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Marco Felsch <m.felsch@pengutronix.de> Link: https://lore.barebox.org/20221214123512.189688-3-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: have usb_rescan return count of enumerated devicesAhmad Fatoum2022-10-041-1/+3
| | | | | | | | | | | | | Some USB mass storage devices can take a comparatively long time after vbus is applied until they can be enumerated. Board code can reissue usb_rescan() to retry enumeration at a later time. It's useful for board code to check whether any new devices have been detected by a usb_rescan() call. To facilitate this, have usb_rescan() return the number of devices found in addition to printing it to the log. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220929100502.895553-1-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* driver: Add functions to free devicesSascha Hauer2022-02-081-0/+1
| | | | | | | | | | | | | | | | | struct device_d has some dynamically allocated members, namely .name and .unique_name. These are normally not freed when a device is freed. Add two functions to free these resources. free_device_res() only frees the allocated members, but not the device itself. This is suitable for cases where the device is embedded in another struct. free_device() frees the allocated members along with the device itself. This can be called when the device itself has been directly allocated. Some users which should use these functions are also fixed in this patch. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Link: https://lore.barebox.org/20220207094953.949868-5-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* drivers: migrate "GPL-2.0" license identifiers to SPDX 2.0Roland Hieber2021-11-225-5/+5
| | | | | | | | | | "GPL-2.0-only" was introduced in SPDX 2.0, and the old identifier "GPL-2.0" is now considered deprecated; see <https://spdx.org/licenses>. Fixes: 28f4a6a4df76f0f1581d (2021-10-30, "drivers: add missing SPDX-License-Identifier") Signed-off-by: Roland Hieber <rhi@pengutronix.de> Link: https://lore.barebox.org/20211117113851.2022669-2-rhi@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* drivers: add missing SPDX-License-IdentifierAhmad Fatoum2021-11-016-31/+6
| | | | | | | | | | | | | | | | | | | | This adds the suitable SPDX-License-Identifier to all files in drivers/ that previously lacked one. To aid manual inspection, following heuristics can be used: * No changes outside of comments/whitespace: git show -U0 HEAD | rg -v '^(@@|diff|index)|[-+]([-+]|//|#|[\s/]\*)' * -or-later come in pairs: git show --inter-hunk-context=19 HEAD | \ perl -0777 -F'/^@/gm' -ne 'for (@F) { @m = /later/g; print if @m & 1 }' Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20211030175632.2276077-4-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: add fallback ->detect method for USB host driversAhmad Fatoum2021-02-011-0/+14
| | | | | | | | | | We already maintain a list of USB host controllers, so we can use that to implement a generic detect callback. Currently, all drivers define their own, which uses driver-specific means to arrive at the struct usb_host and then call usb_host_detect(). Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: Fix initial max packet sizeSascha Hauer2020-10-271-3/+5
| | | | | | | | | In case the USB device is a full speed device we have to set dev->epmaxpacketin[0] and dev->epmaxpacketout[0] before doing a get_descriptor_len() because otherwise it's unset during that call. Fixes: 6d1d95a386 ("usb: factor out a usb_setup_descriptor() function") Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: Add a slice to usb host controllersSascha Hauer2020-08-191-5/+7
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* treewide: remove references to CREDITSUwe Kleine-König2020-04-273-9/+0
| | | | | | | | The CREDITS file was removed from barebox in 2015 by commit 6570288f2d97 ("Remove the CREDITS file"). Remove references to it from several files. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: hub: When no connection came up remove from scanning listSascha Hauer2020-03-261-6/+3
| | | | | | | | When after a timeout no connection came up then we have not only bail out, but also remove the device from the scanning list. Otherwise it can happen that the list never becomes empty and we probe forever. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: Add super speed supportSascha Hauer2020-03-262-17/+58
| | | | | | | This adds the missing bits and pieces to add super speed support to the USB stack. It is based on the corresponding U-Boot code. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: hub: Translate USB 3.0 hub port status into old versionSascha Hauer2020-03-261-1/+20
| | | | | | | | | | | | | | | | | | | | | | Adoption of U-Boot commit: | 1commit 74ffc7cbb1d2d1f218b1bd67d1bd3cc1cba8aa79 | Author: Bin Meng <bmeng.cn@gmail.com> | Date: Wed Jul 19 21:51:12 2017 +0800 | | usb: hub: Translate USB 3.0 hub port status into old version | | USB 3.0 hub port status field has different bit positions from 2.0 | hubs. Since U-Boot only understands the old version, translate the | new one into the old one. | | Since we are going to add USB 3.0 hub support, this feature is only | available with driver model USB. | | Signed-off-by: Bin Meng <bmeng.cn@gmail.com> | Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: factor out a usb_setup_descriptor() functionSascha Hauer2020-03-261-52/+103
| | | | | | | | | | | | | | | | | | | | This factors out a usb_setup_descriptor() function with the goal to make the code better comparable to the corresponding U-Boot code. This also incorporates this U-Boot commit: | commit 2b338ef41127351089254b748de5cefd95c3e800 | Author: Hans de Goede <hdegoede@redhat.com> | Date: Tue May 5 23:56:04 2015 +0200 | | usb: Fix maxpacketsize for first descriptor read for low-speed usb devs | | This fixes descriptor reading of lowspeed devices through ohci not working. | | Signed-off-by: Hans de Goede <hdegoede@redhat.com> | Acked-by: Marek Vasut <marex@denx.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: remove unnecessary variableSascha Hauer2020-03-201-5/+3
| | | | | | | | "tmp" is only used to store the size of the descriptor. The name is not very meaningful and "tmp" is not even used everywhere it could be used. Just replace by using sizeof() directly where needed. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: Assign dev_index onceSascha Hauer2020-03-201-10/+4
| | | | | | | | | dev->devnum is set once in usb_alloc_new_device(), set to 0 again later in usb_new_device() and then set back to the original value. This seems unnecessary, just set devnum once right before calling usb_set_address() on the device. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: support set hub depth request for USB 3.0 hubsSascha Hauer2020-03-202-1/+48
| | | | | | | | | | | | | | | | | | | | | | | This is an adoption of U-Boot commit bbc6f06c0031249bf1983b875e54cb7549bafe60: | commit bbc6f06c0031249bf1983b875e54cb7549bafe60 | Author: Bin Meng <bmeng.cn@gmail.com> | Date: Wed Jul 19 21:51:13 2017 +0800 | | usb: hub: Support 'set hub depth' request for USB 3.0 hubs | | USB 3.0 hub uses a hub depth value multiplied by four as an offset | into the 'route string' to locate the bits it uses to determine the | downstream port number. We shall set the hub depth value of a USB | 3.0 hub after it is configured. | | Signed-off-by: Bin Meng <bmeng.cn@gmail.com> | Reviewed-by: Simon Glass <sjg@chromium.org> In this patch we also support recording the depth of a hub in struct usb_device. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: host: make init hook optionalSascha Hauer2020-03-201-3/+5
| | | | | | | For controllers which do everything relevant during probe time make the init hook optional. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: hub: Parse and save TT details from device descriptorSascha Hauer2020-03-201-1/+51
| | | | | | | | | | | | | | | | | | | | | | Adoption of U-Boot commit 5624dfd5aa91c244519ec60b40b4a42b4d9a43ca: | commit 5624dfd5aa91c244519ec60b40b4a42b4d9a43ca | Author: Bin Meng <bmeng.cn@gmail.com> | Date: Wed Jul 19 21:51:16 2017 +0800 | | usb: hub: Parse and save TT details from device descriptor | | A high speed hub has a special responsibility to handle full speed/ | low speed devices connected on downstream ports. In this case, the | hub must isolate the high speed signaling environment from the full | speed/low speed signaling environment with the help of Transaction | Translator (TT). TT details are provided by hub descriptors and we | parse and save it to hub uclass_priv for later use. | | Signed-off-by: Bin Meng <bmeng.cn@gmail.com> | Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: Use dev_*Sascha Hauer2020-03-201-25/+25
| | | | | | | Give the USB messages some context by using dev_* functions rather than printf()/debug(). Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: Set new USB device name earlierSascha Hauer2020-03-201-9/+8
| | | | | | | in usb_new_device() set the device name as early as possible to let dev_* functions print a meaningful name. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: hub: Do not power-cycle usb devices on initSascha Hauer2020-03-201-11/+0
| | | | | | | This is an adoption of U-Boot commit 0834bb2fb0 ("usb: Do not power-cycle usb devices on init") Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: Pass portstatus/portchange to usb_hub_port_connect_change()Sascha Hauer2020-03-201-15/+3
| | | | | | | | portstatus/portchange have just been read in usb_scan_port(), there shouldn't be any need to read them again in usb_hub_port_connect_change(). Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: Remove hack from the early daysSascha Hauer2020-03-201-12/+0
| | | | | | | The weird hack about "bad shielded USB devices" goes back to the initial U-Boot git commmit. Let's be bold and remove it 18 years later. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: hub: let usb_scan_port() return voidSascha Hauer2020-03-201-16/+9
| | | | | | | usb_scan_port() never returns anything else but 0, so let it return void. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: hub: do not reset devices twiceSascha Hauer2020-03-203-20/+2
| | | | | | | U-Boot has this since 3ed9eb93c2 ("usb: Don't reset the USB hub a 2nd time"), so do the same for barebox. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: hub: Make debugging output more consistentSascha Hauer2020-03-201-28/+31
| | | | | | | | Some of the messages print the port they belong to, others don't. Print the port consistently in all debugging messages. Also remove some stray '\' in the messages. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: Add extra delay for device scanChristian Eggers2020-03-111-0/+3
| | | | | | | | | | | | | | | | Since b1d9837182, detection of various USB flash drives stopped working. While the changes itself look correct, probably the HUB requires some "recovery time" between the GET_STATUS commands in order to be able to detect devices. Our configuration: i.MX6ULL (USB-OTG) with only one port on the root HUB. This port is connected to a Microchip USB4916 hub (permanently attached). The USB4916 is configured with it's power on defaults which means that bPwrOn2PwrGood is set to the maximum (0xFF = 510 ms). Fixes: b1d9837182 ("usb: Change power-on / scanning timeout handling") Signed-off-by: Christian Eggers <ceggers@arri.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: Forward error code from usb_set_configurationSascha Hauer2019-12-201-4/+6
| | | | | | | Instead of returning -1 forward the error code and take the opportunity to print the error string. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: Make timeout unit clearSascha Hauer2019-12-201-4/+4
| | | | | | | The usb_*_msg() functions take a timeout parameter. Make clear which unit is expected by adding a _ms suffix to the variable name. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: Change power-on / scanning timeout handlingPrimoz Fiser2019-10-021-19/+152
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change USB port scanning procedure and timeout handling in the following ways: 1) The power-on delay in usb_hub_power_on() is now reduced to a value of max(100ms, "hub->desc.bPwrOn2PwrGood * 2"). The code does not wait using mdelay, instead usb_hub_power_on() will wait before querying the device in the scanning loop later. The total connection timeout for this hub, which is (1 second + hub->desc.bPwrOn2PwrGood * 2) is calculated and will be used in the following per-port scanning loop as the timeout to detect active USB devices on this hub. 2) Don't delay the minimum delay (for power to stabilize) in usb_hub_power_on(). Instead skip querying these devices in the scanning loop usb_scan_port() until the delay time is reached. 3) The ports are now scanned in a quasi parallel way. The current code did wait for each (unconnected) port to reach its timeout and only then continue with the next port. This patch now changes this to scan all ports of all USB hubs quasi simultaneously. For this, all ports are added to a scanning list in usb_hub_configure_ports(). The list is later scanned in usb_device_list_scan() until all ports are ready by either a) reaching the connection timeout (calculated earlier), or by b) detecting a USB device. This results in a faster USB scan time as the recursive scanning of USB hubs connected to the hub that's currently being scanned will start earlier. 4) Ports with overcurrent detection will get scanned multiple times if OC condition is detected (PORT_OVERCURRENT_MAX_SCAN_COUNT). Without patch: $ time usb usb: USB: scanning bus for devices... usb: 17 USB Device(s) found time: 10344ms With patch: $ time usb usb: USB: scanning bus for devices... usb: 17 USB Device(s) found time: 4529ms Delta: ~6 seconds Signed-off-by: Primoz Fiser <primoz.fiser@norik.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: usb_hub_port_connect_change(): Remove unnecessary delaysPrimoz Fiser2019-10-021-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | Remove two mdelay(200) calls from usb_hub_port_connect_change() before and after calling hub_port_reset(). These delays don't seem to be necessary since hub_port_reset() already incorporates delays on its own. Without patch: $ time usb usb: USB: scanning bus for devices... usb: 17 USB Device(s) found time: 16355ms With patch: $ time usb usb: USB: scanning bus for devices... usb: 17 USB Device(s) found time: 10344ms Delta: ~6 seconds Signed-off-by: Primoz Fiser <primoz.fiser@norik.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: hub_port_reset(): Speedup hub reset handlingPrimoz Fiser2019-10-021-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Start with a short USB hub reset delay of 20ms. This can be enough for some configurations. Switch to longer reset delay only if the short delay hasn't been long enough. This USB hub reset handling strategy is also used in the Linux kernel USB hub driver, function hub_port_reset(). Without patch: $ time usb usb: USB: scanning bus for devices... usb: 17 USB Device(s) found time: 21750ms With patch: $ time usb usb: USB: scanning bus for devices... usb: 17 USB Device(s) found time: 16355ms Delta: ~5.5 seconds Signed-off-by: Primoz Fiser <primoz.fiser@norik.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: Drop usb_disable_asynch()Andrey Smirnov2019-03-111-21/+3
| | | | | | | | | | There are no users of usb_control_msg() in the codebase that pass timeout of 0, so it doesn't look like usb_disable_asynch() has any effect on USB operation. Drop that function and remove all of its uses to simplify things. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: hub: Do not include <scsi.h>Andrey Smirnov2019-03-111-1/+0
| | | | | | | No symbols found in <scsi.h> are used in this file. Drop it. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/usb'Sascha Hauer2018-11-091-0/+5
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| * usb: Add usb_unregister_host()Sascha Hauer2018-10-261-0/+5
| | | | | | | | | | | | | | | | We have usb_register_host() which puts a new host on the list of hosts we should also have the opposite which removes the host from the list again. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | drivers: Introduce dev_set_name()Andrey Smirnov2018-10-181-2/+3
|/ | | | | | | | Introduce dev_set_name() in order to hide implementation details of setting device's name so it'd be easier to change it. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* USB: host: hub: Adjust device speed after every port resetAndrey Smirnov2018-08-293-20/+19
| | | | | | | | | | | | | | | | | | | | | To account for the possibility of a device coming out of second reset operating at different speed compared to first, move the code that stores device speed to be a part of hub_port_reset(). This way any speed change happening as a result of port reset could be accounted for. The above behaviour was observed on i.MX51 ZII RDU1, on USBH2 port connected to SMSC2660 USB Hub/SD card reader. For reasons unclear, first reset would put it into Full Speed mode whereas second would result in switch to High Speed. Artifically disabling second reset would result in the device operating at Full Speed. Not doing second speed adjustement on that board result would result in un-processed control transfer and failure to execute usb_set_address(). Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* USB: host: hub: rename function argumentSascha Hauer2018-08-292-12/+12
| | | | | | | | Rename struct usb_device *dev function argument to usb_port_reset() to "hub" as the next patch will add another struct usb_device * argument to that function. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* USB: host: hub: Make sure to remove dangling pointersAndrey Smirnov2018-08-291-0/+1
| | | | | | | | | | | | | When the call to usb_new_device() in usb_hub_port_connect_change() fails and corresponding USB device is freed with usb_free_device(), we need to make sure that the pointer to it stored in dev->children[port] is removed as well, lest we risk usage-after-free. This issue was observed when working with a device for which usb_set_address() would fail and trying to do "usb" right afterwards. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: imx: implement support for limiting host to full speedNikita Yushchenko2018-06-262-0/+36
| | | | | | | | | | | | | | | | | | This is needed when host is known to not work properly in high speed mode. In linux, chipidea driver supports 'maximum-speed' device tree property. When that is set to "full-speed", driver sets PFSC bit in PORTSC register, which disallows use of high speed mode. This patch implements same support for barebox. Important technical detail is that PFSC bit is cleared by port reset, thus setting it has to be done in ehci->init() callback which is called after ehci_reset(). Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* param: make parameter functions more consistentSascha Hauer2017-04-111-8/+8
| | | | | | | | | | | | | | | | | | | | | | This patch creates a consitent set of device parameter functions. With this we have: dev_add_param_<type><access> "type" is one of: int32, uint32, int64, uint64, string, mac, ipv4, enum, bitmask The improvement here is that we now can exactly specify the width of the int type parameters and also correctly distinguish between signed and unsigned variables which means that a variable no longer ends up with INT_MAX when it's assigned -1. "access" can be empty for regular read/write parameter, "_ro" for readonly parameters which get their value from a variable pointer in the background or "_fixed" for parameters which are set to a fixed value (without a pointer in the background). Some more exotic types are not (yet) implemented, like dev_add_param_ip_ro. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: Add usb phy to usb hostSascha Hauer2016-09-291-0/+8
| | | | | | | | Add a struct usb_phy * member to struct usb_host. Also, call usb_phy_notify_connect() / usb_phy_notify_disconnect() when there are connection changes on the root hub. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usb: Use standard debug macroSascha Hauer2016-09-281-27/+25
| | | | | | Use standard pr_debug instead of homebrew USB_PRINTF Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-26 02:37:29 +0000