From 1f0972f5b05a674d73e4eb314fa1b6c78e37aef1 Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Tue, 12 Mar 2013 13:24:19 +0200 Subject: usb: phy: nop: Add some parameters to platform data Add clk_rate parameter to platform data. If supplied, the NOP phy driver will program the clock to that rate during probe. Also add 2 flags, needs_vcc and needs_reset. If the flag is set and the regulator couldn't be found then the driver will bail out with -EPROBE_DEFER. Signed-off-by: Roger Quadros Acked-by: Felipe Balbi Signed-off-by: Felipe Balbi --- include/linux/usb/nop-usb-xceiv.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/usb/nop-usb-xceiv.h b/include/linux/usb/nop-usb-xceiv.h index 28884c717411..148d35171aac 100644 --- a/include/linux/usb/nop-usb-xceiv.h +++ b/include/linux/usb/nop-usb-xceiv.h @@ -5,6 +5,11 @@ struct nop_usb_xceiv_platform_data { enum usb_phy_type type; + unsigned long clk_rate; + + /* if set fails with -EPROBE_DEFER if can't get regulator */ + unsigned int needs_vcc:1; + unsigned int needs_reset:1; }; #if defined(CONFIG_NOP_USB_XCEIV) || (defined(CONFIG_NOP_USB_XCEIV_MODULE) && defined(MODULE)) -- cgit v1.2.2 From 4495afcf713adb5bdb16504052952bdd0d11f90a Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I Date: Tue, 26 Feb 2013 20:03:28 +0530 Subject: usb: dwc3: omap: remove platform data associated with dwc3-omap omap5 is not going to have support for non-dt boot making the platform data associated with dwc3 useless. Removed it here. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Felipe Balbi --- include/linux/platform_data/dwc3-omap.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include') diff --git a/include/linux/platform_data/dwc3-omap.h b/include/linux/platform_data/dwc3-omap.h index ada401244e0b..1d36ca874cc8 100644 --- a/include/linux/platform_data/dwc3-omap.h +++ b/include/linux/platform_data/dwc3-omap.h @@ -41,7 +41,3 @@ enum dwc3_omap_utmi_mode { DWC3_OMAP_UTMI_MODE_HW, DWC3_OMAP_UTMI_MODE_SW, }; - -struct dwc3_omap_data { - enum dwc3_omap_utmi_mode utmi_mode; -}; -- cgit v1.2.2 From f07bd56bbdaa2340ebf46af9a37e7b2d1b4578e3 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Thu, 24 Jan 2013 14:52:24 +0200 Subject: usb: gadget: udc-core: allow udc class register gadget device Currently all UDC drivers are calling device_register() before calling usb_add_gadget_udc(). In order to avoid code duplication, we can allow udc-core.c register that device. However that would become a really large patch, so to cope with the meanwhile and allow us to write bite-sized patches, we're adding a flag which will be set by UDC driver once it removes the code for registering the gadget device. Once all are converted, the new flag will be removed. Reviewed-by: Tomasz Figa Signed-off-by: Felipe Balbi --- include/linux/usb/gadget.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 2e297e80d59a..fcd9ef8d3f70 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -494,6 +494,9 @@ struct usb_gadget_ops { * only supports HNP on a different root port. * @b_hnp_enable: OTG device feature flag, indicating that the A-Host * enabled HNP support. + * @register_my_device: Flag telling udc-core that UDC driver didn't + * register the gadget device to the driver model. Temporary until + * all UDC drivers are fixed up properly. * @name: Identifies the controller hardware type. Used in diagnostics * and sometimes configuration. * @dev: Driver model state for this abstract device. @@ -531,6 +534,7 @@ struct usb_gadget { unsigned b_hnp_enable:1; unsigned a_hnp_support:1; unsigned a_alt_hnp_support:1; + unsigned register_my_device:1; const char *name; struct device dev; unsigned out_epnum; -- cgit v1.2.2 From 7bce401cc6db5508ef2517e45bd8caf7ce0a15ee Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Thu, 24 Jan 2013 17:41:00 +0200 Subject: usb: gadget: drop now unnecessary flag We don't need the ->register_my_device flag anymore because all UDC drivers have been properly converted. Let's remove every history of it. Signed-off-by: Felipe Balbi --- include/linux/usb/gadget.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include') diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index fcd9ef8d3f70..2e297e80d59a 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -494,9 +494,6 @@ struct usb_gadget_ops { * only supports HNP on a different root port. * @b_hnp_enable: OTG device feature flag, indicating that the A-Host * enabled HNP support. - * @register_my_device: Flag telling udc-core that UDC driver didn't - * register the gadget device to the driver model. Temporary until - * all UDC drivers are fixed up properly. * @name: Identifies the controller hardware type. Used in diagnostics * and sometimes configuration. * @dev: Driver model state for this abstract device. @@ -534,7 +531,6 @@ struct usb_gadget { unsigned b_hnp_enable:1; unsigned a_hnp_support:1; unsigned a_alt_hnp_support:1; - unsigned register_my_device:1; const char *name; struct device dev; unsigned out_epnum; -- cgit v1.2.2 From d1e3d757f7aa91f15db347fc05ffd7ef7f413091 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Thu, 24 Jan 2013 22:29:48 +0200 Subject: usb: common: introduce usb_state_string() this function will receive enum usb_device_state and return a human-readable string from it or, case an unknown value is passed as argument, the string "UNKNOWN". Signed-off-by: Felipe Balbi --- include/linux/usb/ch9.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include') diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h index 9c210f2283df..27603bcbb9b9 100644 --- a/include/linux/usb/ch9.h +++ b/include/linux/usb/ch9.h @@ -43,4 +43,13 @@ */ extern const char *usb_speed_string(enum usb_device_speed speed); + +/** + * usb_state_string - Returns human readable name for the state. + * @state: The state to return a human-readable name for. If it's not + * any of the states devices in usb_device_state_string enum, + * the string UNKNOWN will be returned. + */ +extern const char *usb_state_string(enum usb_device_state state); + #endif /* __LINUX_USB_CH9_H */ -- cgit v1.2.2 From 49401f4169c0e5a1b38f1a676d6f12eecaf77485 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Mon, 19 Dec 2011 12:57:04 +0200 Subject: usb: gadget: introduce gadget state tracking that's useful information to expose to userland. Signed-off-by: Felipe Balbi --- include/linux/usb/gadget.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include') diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 2e297e80d59a..32b734d88d6b 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -482,6 +482,7 @@ struct usb_gadget_ops { * @speed: Speed of current connection to USB host. * @max_speed: Maximal speed the UDC can handle. UDC must support this * and all slower speeds. + * @state: the state we are now (attached, suspended, configured, etc) * @sg_supported: true if we can handle scatter-gather * @is_otg: True if the USB device port uses a Mini-AB jack, so that the * gadget driver must provide a USB OTG descriptor. @@ -525,6 +526,7 @@ struct usb_gadget { struct list_head ep_list; /* of usb_ep */ enum usb_device_speed speed; enum usb_device_speed max_speed; + enum usb_device_state state; unsigned sg_supported:1; unsigned is_otg:1; unsigned is_a_peripheral:1; @@ -959,6 +961,13 @@ extern void usb_gadget_unmap_request(struct usb_gadget *gadget, /*-------------------------------------------------------------------------*/ +/* utility to set gadget state properly */ + +extern void usb_gadget_set_state(struct usb_gadget *gadget, + enum usb_device_state state); + +/*-------------------------------------------------------------------------*/ + /* utility wrapping a simple endpoint selection policy */ extern struct usb_ep *usb_ep_autoconfig(struct usb_gadget *, -- cgit v1.2.2 From 792bfcf7a1cd7913fa5d55f2b3a40e3275e98f6f Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Tue, 26 Feb 2013 14:47:44 +0200 Subject: usb: gadget: udc-core: introduce usb_add_gadget_udc_release() not all UDC drivers need a proper release function, for those which don't need it, we udc-core will provide a no-op release method so we can remove "redefinition" of such methods in almost every UDC driver. Signed-off-by: Felipe Balbi --- include/linux/usb/gadget.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 32b734d88d6b..c454a88abf2e 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -874,6 +874,8 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver); */ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver); +extern int usb_add_gadget_udc_release(struct device *parent, + struct usb_gadget *gadget, void (*release)(struct device *dev)); extern int usb_add_gadget_udc(struct device *parent, struct usb_gadget *gadget); extern void usb_del_gadget_udc(struct usb_gadget *gadget); extern int udc_attach_driver(const char *name, -- cgit v1.2.2 From 42c0bf1ce7c067bbc3e77d5626f102a16bc4fb6b Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Thu, 7 Mar 2013 10:39:57 +0200 Subject: usb: otg: prefix otg_state_string with usb_ all other functions under drivers/usb/ start with usb_, let's do the same thing. This patch is in preparation for moving otg_state_string to usb-common.c and deleting otg.c completely. Signed-off-by: Felipe Balbi --- include/linux/usb/otg.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h index e8a5fe87c6bd..9f9fb3927b0a 100644 --- a/include/linux/usb/otg.h +++ b/include/linux/usb/otg.h @@ -37,9 +37,9 @@ struct usb_otg { }; #ifdef CONFIG_USB_OTG_UTILS -extern const char *otg_state_string(enum usb_otg_state state); +extern const char *usb_otg_state_string(enum usb_otg_state state); #else -static inline const char *otg_state_string(enum usb_otg_state state) +static inline const char *usb_otg_state_string(enum usb_otg_state state) { return NULL; } -- cgit v1.2.2 From 7009bdd7f31ed6e769af0f76e2368bb6033be572 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Thu, 7 Mar 2013 10:45:56 +0200 Subject: usb: otg: move usb_otg_state_string to usb-common.c otg.c only had a single function definition which might make more sense to be placed in usb-common.c. While doing that, we also delete otg.c since it's now empty. Signed-off-by: Felipe Balbi --- include/linux/usb/otg.h | 7 ------- 1 file changed, 7 deletions(-) (limited to 'include') diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h index 9f9fb3927b0a..291e01ba32e5 100644 --- a/include/linux/usb/otg.h +++ b/include/linux/usb/otg.h @@ -36,14 +36,7 @@ struct usb_otg { }; -#ifdef CONFIG_USB_OTG_UTILS extern const char *usb_otg_state_string(enum usb_otg_state state); -#else -static inline const char *usb_otg_state_string(enum usb_otg_state state) -{ - return NULL; -} -#endif /* Context: can sleep */ static inline int -- cgit v1.2.2 From edc7cb2e955f222fe51cd44c1cf9c94d58017344 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Thu, 7 Mar 2013 11:13:43 +0200 Subject: usb: phy: make it a menuconfig We already have a considerable amount of USB PHY drivers, making it a menuconfig just prevents us from adding too much churn to USB's menuconfig. While at that, also select USB_OTG_UTILS from this new menuconfig just to keep backwards compatibility until we manage to remove that symbol. Signed-off-by: Felipe Balbi --- include/linux/usb/phy.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h index 15847cbdb512..b001dc3d6354 100644 --- a/include/linux/usb/phy.h +++ b/include/linux/usb/phy.h @@ -161,7 +161,7 @@ usb_phy_shutdown(struct usb_phy *x) } /* for usb host and peripheral controller drivers */ -#ifdef CONFIG_USB_OTG_UTILS +#if IS_ENABLED(CONFIG_USB_PHY) extern struct usb_phy *usb_get_phy(enum usb_phy_type type); extern struct usb_phy *devm_usb_get_phy(struct device *dev, enum usb_phy_type type); -- cgit v1.2.2 From b774212ea5f13911a5e0211a7088e42dad46b4c8 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Fri, 8 Mar 2013 13:22:58 +0200 Subject: usb: phy: introduce ->set_vbus() method this method will be used to enable or disable the charge pump. Whenever we have DRD devices, we need to be able to turn VBUS on or off whenever we want. Note that in the ideal case, this would be controlled by the ID-pin Interrupt, but not all devices have ID-pin properly routed since manufacturers can choose to save that trace if they're building a host-only product out of a DRD IP. This is also useful during debugging where we might not have the proper cable hanging around. Signed-off-by: Felipe Balbi --- include/linux/usb/phy.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'include') diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h index b001dc3d6354..b7c2217c585f 100644 --- a/include/linux/usb/phy.h +++ b/include/linux/usb/phy.h @@ -91,6 +91,9 @@ struct usb_phy { int (*init)(struct usb_phy *x); void (*shutdown)(struct usb_phy *x); + /* enable/disable VBUS */ + int (*set_vbus)(struct usb_phy *x, int on); + /* effective for B devices, ignored for A-peripheral */ int (*set_power)(struct usb_phy *x, unsigned mA); @@ -160,6 +163,24 @@ usb_phy_shutdown(struct usb_phy *x) x->shutdown(x); } +static inline int +usb_phy_vbus_on(struct usb_phy *x) +{ + if (!x->set_vbus) + return 0; + + return x->set_vbus(x, true); +} + +static inline int +usb_phy_vbus_off(struct usb_phy *x) +{ + if (!x->set_vbus) + return 0; + + return x->set_vbus(x, false); +} + /* for usb host and peripheral controller drivers */ #if IS_ENABLED(CONFIG_USB_PHY) extern struct usb_phy *usb_get_phy(enum usb_phy_type type); -- cgit v1.2.2 From 2ba7943af0f0cca5a069cd3aff807815bc76fff1 Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I Date: Thu, 7 Mar 2013 18:51:44 +0530 Subject: usb: dwc3: dwc3-omap: return -EPROBE_DEFER if probe has not yet executed return -EPROBE_DEFER from dwc3_omap_mailbox in dwc3-omap.c, if the probe of dwc3-omap has not yet been executed or failed. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Felipe Balbi --- include/linux/usb/dwc3-omap.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/usb/dwc3-omap.h b/include/linux/usb/dwc3-omap.h index 51eae14477f7..5615f4d82724 100644 --- a/include/linux/usb/dwc3-omap.h +++ b/include/linux/usb/dwc3-omap.h @@ -19,11 +19,11 @@ enum omap_dwc3_vbus_id_status { }; #if (defined(CONFIG_USB_DWC3) || defined(CONFIG_USB_DWC3_MODULE)) -extern void dwc3_omap_mailbox(enum omap_dwc3_vbus_id_status status); +extern int dwc3_omap_mailbox(enum omap_dwc3_vbus_id_status status); #else -static inline void dwc3_omap_mailbox(enum omap_dwc3_vbus_id_status status) +static inline int dwc3_omap_mailbox(enum omap_dwc3_vbus_id_status status) { - return; + return -ENODEV; } #endif -- cgit v1.2.2 From b7fa5c2aec5be083eb2719b405089703608e9bc6 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Thu, 14 Mar 2013 17:59:06 +0200 Subject: usb: phy: return -ENXIO when PHY layer isn't enabled in cases where PHY layer isn't enabled, we want to still return an error code (actually an error pointer) so that our users don't need to cope with either error pointer of NULL. This will simplify users as below: - return IS_ERR(phy) ? PTR_ERR(phy) : -ENODEV; + return PTR_ERR(phy); Acked-by: Kishon Vijay Abraham I Reported-by: Alan Stern Signed-off-by: Felipe Balbi --- include/linux/usb/phy.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h index b7c2217c585f..6b5978f57633 100644 --- a/include/linux/usb/phy.h +++ b/include/linux/usb/phy.h @@ -197,29 +197,29 @@ extern int usb_bind_phy(const char *dev_name, u8 index, #else static inline struct usb_phy *usb_get_phy(enum usb_phy_type type) { - return NULL; + return ERR_PTR(-ENXIO); } static inline struct usb_phy *devm_usb_get_phy(struct device *dev, enum usb_phy_type type) { - return NULL; + return ERR_PTR(-ENXIO); } static inline struct usb_phy *usb_get_phy_dev(struct device *dev, u8 index) { - return NULL; + return ERR_PTR(-ENXIO); } static inline struct usb_phy *devm_usb_get_phy_dev(struct device *dev, u8 index) { - return NULL; + return ERR_PTR(-ENXIO); } static inline struct usb_phy *devm_usb_get_phy_by_phandle(struct device *dev, const char *phandle, u8 index) { - return NULL; + return ERR_PTR(-ENXIO); } static inline void usb_put_phy(struct usb_phy *x) -- cgit v1.2.2 From af6882be363d3a7bf0f72dd17ac2a639c4da0059 Mon Sep 17 00:00:00 2001 From: Fabio Baltieri Date: Fri, 8 Mar 2013 10:27:09 +0800 Subject: usb: phy: ab8500-usb: update irq handling code Update irq handling code to notify all possible link status changes of AB8500 and AB8505 to the ux500-musb glue driver. The additional event codes will be used for pm-runtime implementation, and are defined in a separate ux500-specific header. This also modify the irq registration code to use devm_* helpers and drop all non necessary fail path code. Acked-by: Linus Walleij Signed-off-by: Fabio Baltieri Signed-off-by: Felipe Balbi --- include/linux/usb/musb-ux500.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 include/linux/usb/musb-ux500.h (limited to 'include') diff --git a/include/linux/usb/musb-ux500.h b/include/linux/usb/musb-ux500.h new file mode 100644 index 000000000000..1e2c7130f6e1 --- /dev/null +++ b/include/linux/usb/musb-ux500.h @@ -0,0 +1,31 @@ +/* + * Copyright (C) 2013 ST-Ericsson AB + * + * 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. + */ + +#ifndef __MUSB_UX500_H__ +#define __MUSB_UX500_H__ + +enum ux500_musb_vbus_id_status { + UX500_MUSB_NONE = 0, + UX500_MUSB_VBUS, + UX500_MUSB_ID, + UX500_MUSB_CHARGER, + UX500_MUSB_ENUMERATED, + UX500_MUSB_RIDA, + UX500_MUSB_RIDB, + UX500_MUSB_RIDC, + UX500_MUSB_PREPARE, + UX500_MUSB_CLEAN, +}; + +#endif /* __MUSB_UX500_H__ */ -- cgit v1.2.2 From ef096542642874de10909f02686447a96a66ad14 Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Mon, 25 Mar 2013 03:06:57 -0400 Subject: usb: mv_usb: remove clock name from pdata Using pdata to pass clock name is not correct. Directly get clock from usb drivers. Signed-off-by: Chao Xie Signed-off-by: Felipe Balbi --- include/linux/platform_data/mv_usb.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/linux/platform_data/mv_usb.h b/include/linux/platform_data/mv_usb.h index 944b01dd103e..98b7925f1a2d 100644 --- a/include/linux/platform_data/mv_usb.h +++ b/include/linux/platform_data/mv_usb.h @@ -34,8 +34,6 @@ struct mv_usb_addon_irq { }; struct mv_usb_platform_data { - unsigned int clknum; - char **clkname; struct mv_usb_addon_irq *id; /* Only valid for OTG. ID pin change*/ struct mv_usb_addon_irq *vbus; /* valid for OTG/UDC. VBUS change*/ -- cgit v1.2.2 From 225da3e3cb1f0db9e4cb7fa2a7dc3a360d1cf788 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Sun, 31 Mar 2013 18:34:43 -0700 Subject: usb: renesas_usbhs: fixup sparse errors for common.c This patch fixup below sparse errors CHECK ${RENESAS_USB}/common.c ${RENESAS_USB}/common.c:313:17: error: incompatible types in conditional expression (different base types) ${RENESAS_USB}/common.c:322:17: error: incompatible types in conditional expression (different base types) ${RENESAS_USB}/common.c:384:17: error: incompatible types in conditional expression (different base types) ${RENESAS_USB}/common.c:524:9: error: incompatible types in conditional expression (different base types) ${RENESAS_USB}/common.c:545:9: error: incompatible types in conditional expression (different base types) ${RENESAS_USB}/common.c:574:9: error: incompatible types in conditional expression (different base types) ${RENESAS_USB}/common.c:606:9: error: incompatible types in conditional expression (different base types) ${RENESAS_USB}/mod_gadget.c:233:28: warning: symbol 'req_clear_feature' was not declared. Should it be static? ${RENESAS_USB}/mod_gadget.c:274:28: warning: symbol 'req_set_feature' was not declared. Should it be static? ${RENESAS_USB}/mod_gadget.c:375:28: warning: symbol 'req_get_status' was not declared. Should it be static? [ balbi@ti.com : added three sparse fixes to mod_gadget.c ] Signed-off-by: Kuninori Morimoto Signed-off-by: Felipe Balbi --- include/linux/usb/renesas_usbhs.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h index c5d36c65c33b..e452ba6ec6bd 100644 --- a/include/linux/usb/renesas_usbhs.h +++ b/include/linux/usb/renesas_usbhs.h @@ -62,14 +62,14 @@ struct renesas_usbhs_platform_callback { * Hardware exit function for platform. * it is called when driver was removed */ - void (*hardware_exit)(struct platform_device *pdev); + int (*hardware_exit)(struct platform_device *pdev); /* * option: * * for board specific clock control */ - void (*power_ctrl)(struct platform_device *pdev, + int (*power_ctrl)(struct platform_device *pdev, void __iomem *base, int enable); /* @@ -77,7 +77,7 @@ struct renesas_usbhs_platform_callback { * * Phy reset for platform */ - void (*phy_reset)(struct platform_device *pdev); + int (*phy_reset)(struct platform_device *pdev); /* * get USB ID function -- cgit v1.2.2 From 88af8bbe4ef781031ad3370847553f3b42ba0076 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Sun, 23 Dec 2012 21:10:24 +0100 Subject: usb: gadget: the start of the configfs interface MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit |# modprobe dummy_hcd num=2 |# modprobe libcomposite |# lsmod |Module Size Used by |libcomposite 31648 0 |dummy_hcd 19871 0 |# mkdir /sys/kernel/config/usb_gadget/oha |# cd /sys/kernel/config/usb_gadget/oha |# mkdir configs/def.1 |# mkdir configs/def.2 |# mkdir functions/acm.ttyS1 |# mkdir strings/0x1 |mkdir: cannot create directory `strings/0x1': Invalid argument |# mkdir strings/0x409 |# mkdir strings/1033 |mkdir: cannot create directory `strings/1033': File exists |# mkdir strings/1032 |# mkdir configs/def.1/strings/0x409 |# mkdir configs/def.2/strings/0x409 |#find . -ls | 975 0 drwxr-xr-x 5 root root 0 Dec 23 17:40 . | 978 0 drwxr-xr-x 4 root root 0 Dec 23 17:43 ./strings | 4100 0 drwxr-xr-x 2 root root 0 Dec 23 17:43 ./strings/1032 | 995 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./strings/1032/serialnumber | 996 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./strings/1032/product | 997 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./strings/1032/manufacturer | 2002 0 drwxr-xr-x 2 root root 0 Dec 23 17:41 ./strings/0x409 | 998 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./strings/0x409/serialnumber | 999 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./strings/0x409/product | 1000 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./strings/0x409/manufacturer | 977 0 drwxr-xr-x 4 root root 0 Dec 23 17:41 ./configs | 4081 0 drwxr-xr-x 3 root root 0 Dec 23 17:41 ./configs/def.2 | 4082 0 drwxr-xr-x 3 root root 0 Dec 23 17:42 ./configs/def.2/strings | 2016 0 drwxr-xr-x 2 root root 0 Dec 23 17:42 ./configs/def.2/strings/0x409 | 1001 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./configs/def.2/strings/0x409/configuration | 1002 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./configs/def.2/bmAttributes | 1003 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./configs/def.2/MaxPower | 979 0 drwxr-xr-x 3 root root 0 Dec 23 17:42 ./configs/def.1 | 980 0 drwxr-xr-x 3 root root 0 Dec 23 17:42 ./configs/def.1/strings | 5122 0 drwxr-xr-x 2 root root 0 Dec 23 17:42 ./configs/def.1/strings/0x409 | 1004 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./configs/def.1/strings/0x409/configuration | 1005 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./configs/def.1/bmAttributes | 1006 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./configs/def.1/MaxPower | 976 0 drwxr-xr-x 3 root root 0 Dec 23 17:41 ./functions | 981 0 drwxr-xr-x 2 root root 0 Dec 23 17:41 ./functions/acm.ttyS1 | 1007 0 -r--r--r-- 1 root root 4096 Dec 23 17:43 ./functions/acm.ttyS1/port_num | 1008 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./UDC | 1009 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./bcdUSB | 1010 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./bcdDevice | 1011 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./idProduct | 1012 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./idVendor | 1013 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./bMaxPacketSize0 | 1014 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./bDeviceProtocol | 1015 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./bDeviceSubClass | 1016 0 -rw-r--r-- 1 root root 4096 Dec 23 17:43 ./bDeviceClass |# cat functions/acm.ttyS1/port_num |0 |# ls -lah /dev/ttyGS* |crw-rw---T 1 root dialout 252, 0 Dec 23 17:41 /dev/ttyGS0 | |# echo 0x1234 > idProduct |# echo 0xabcd > idVendor |# echo 1122 > strings/0x409/serialnumber |# echo "The manufacturer" > strings/0x409/manufacturer |# echo 1 > strings/1032/manufacturer |# echo 1sa > strings/1032/product |# echo tada > strings/1032/serialnumber |echo "Primary configuration" > configs/def.1/strings/0x409/configuration |# echo "Secondary configuration" > configs/def.2/strings/0x409/configuration |# ln -s functions/acm.ttyS1 configs/def.1/ |# ln -s functions/acm.ttyS1 configs/def.2/ |find configs/def.1/ -ls | 979 0 drwxr-xr-x 3 root root 0 Dec 23 17:49 configs/def.1/ | 6264 0 lrwxrwxrwx 1 root root 0 Dec 23 17:48 configs/def.1/acm.ttyS1 -> ../../../../usb_gadget/oha/functions/acm.ttyS1 | 980 0 drwxr-xr-x 3 root root 0 Dec 23 17:42 configs/def.1/strings | 5122 0 drwxr-xr-x 2 root root 0 Dec 23 17:49 configs/def.1/strings/0x409 | 6284 0 -rw-r--r-- 1 root root 4096 Dec 23 17:47 configs/def.1/strings/0x409/configuration | 6285 0 -rw-r--r-- 1 root root 4096 Dec 23 17:49 configs/def.1/bmAttributes | 6286 0 -rw-r--r-- 1 root root 4096 Dec 23 17:49 configs/def.1/MaxPower | |echo 120 > configs/def.1/MaxPower | |# ls -lh /sys/class/udc/ |total 0 |lrwxrwxrwx 1 root root 0 Dec 23 17:50 dummy_udc.0 -> ../../devices/platform/dummy_udc.0/udc/dummy_udc.0 |lrwxrwxrwx 1 root root 0 Dec 23 17:50 dummy_udc.1 -> ../../devices/platform/dummy_udc.1/udc/dummy_udc.1 |# echo dummy_udc.0 > UDC |# lsusb |Bus 001 Device 002: ID abcd:1234 Unknown | |lsusb -d abcd:1234 -v |Device Descriptor: … | idVendor 0xabcd Unknown | idProduct 0x1234 | bcdDevice 3.06 | iManufacturer 1 The manufacturer | iProduct 2 | iSerial 3 1122 | bNumConfigurations 2 … |echo "" > UDC v5…v6 - wired up strings with usb_gstrings_attach() - add UDC attribe. Write "udc-name" will bind the gadget. Write an empty string (it should contain \n since 0 bytes write get optimzed away) will unbind the UDC from the gadget. The name of available UDCs can be obtained from /sys/class/udc/ v4…v5 - string rework. This will add a strings folder incl. language code like strings/409/manufacturer as suggested by Alan. - rebased ontop reworked functions.c which has usb_function_instance which is used prior after "mkdir acm.instance" and can be directly used for configuration via configfs. v3…v4 - moved functions from the root folde down to the gadget as suggested by Michał - configs have now their own configs folder as suggested by Michał. The folder is still name.bConfigurationValue where name becomes the sConfiguration. Is this usefull should we just stilc configs/bConfigurationValue/ ? - added configfs support to the ACM function. The port_num attribute is exported by f_acm. An argument has been added to the USB alloc function to distinguish between "old" (use facm_configure() to configure and configfs interface (expose a config_node). The port_num is currently a dumb counter. It will require some function re-work to make it work. scheduled for v5: - sym linking function into config. v2…v3 - replaced one ifndef by ifdef as suggested by Micahał - strstr()/strchr() function_make as suggested by Micahł - replace [iSerialNumber|iProduct|iManufacturer] with [sSerialNumber|sProduct|sManufacturer] as suggested by Alan - added creation of config descriptors v1…v2 - moved gadgets from configfs' root directory into /udcs/ within our "usb_gadget" folder. Requested by Andrzej & Michał - use a dot as a delimiter between function's name and its instance's name as suggested by Michał - renamed all config_item_type, configfs_group_operations, make_group, drop_item as suggested by suggested by Andrzej to remain consisten within this file and within other configfs users - Since configfs.c and functions.c are now part of the udc-core module, the module itself is now called udc. Also added a tiny ifdef around init code becuase udc-core is subsys init and this is too early for configfs in the built-in case. In the module case, we can only have one init function. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Felipe Balbi --- include/linux/usb/composite.h | 3 + include/linux/usb/gadget_configfs.h | 110 ++++++++++++++++++++++++++++++++++++ 2 files changed, 113 insertions(+) create mode 100644 include/linux/usb/gadget_configfs.h (limited to 'include') diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h index 8860594d6364..5e61589fc166 100644 --- a/include/linux/usb/composite.h +++ b/include/linux/usb/composite.h @@ -39,6 +39,7 @@ #include #include #include +#include /* * USB function drivers should return USB_GADGET_DELAYED_STATUS if they @@ -464,6 +465,8 @@ struct usb_function_driver { }; struct usb_function_instance { + struct config_group group; + struct list_head cfs_list; struct usb_function_driver *fd; void (*free_func_inst)(struct usb_function_instance *inst); }; diff --git a/include/linux/usb/gadget_configfs.h b/include/linux/usb/gadget_configfs.h new file mode 100644 index 000000000000..d74c0ae989d5 --- /dev/null +++ b/include/linux/usb/gadget_configfs.h @@ -0,0 +1,110 @@ +#ifndef __GADGET_CONFIGFS__ +#define __GADGET_CONFIGFS__ + +#include + +int check_user_usb_string(const char *name, + struct usb_gadget_strings *stringtab_dev); + +#define GS_STRINGS_W(__struct, __name) \ + static ssize_t __struct##_##__name##_store(struct __struct *gs, \ + const char *page, size_t len) \ +{ \ + int ret; \ + \ + ret = usb_string_copy(page, &gs->__name); \ + if (ret) \ + return ret; \ + return len; \ +} + +#define GS_STRINGS_R(__struct, __name) \ + static ssize_t __struct##_##__name##_show(struct __struct *gs, \ + char *page) \ +{ \ + return sprintf(page, "%s\n", gs->__name ?: ""); \ +} + +#define GS_STRING_ITEM_ATTR(struct_name, name) \ + static struct struct_name##_attribute struct_name##_##name = \ + __CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR, \ + struct_name##_##name##_show, \ + struct_name##_##name##_store) + +#define GS_STRINGS_RW(struct_name, _name) \ + GS_STRINGS_R(struct_name, _name) \ + GS_STRINGS_W(struct_name, _name) \ + GS_STRING_ITEM_ATTR(struct_name, _name) + +#define USB_CONFIG_STRING_RW_OPS(struct_in) \ + CONFIGFS_ATTR_OPS(struct_in); \ + \ +static struct configfs_item_operations struct_in##_langid_item_ops = { \ + .release = struct_in##_attr_release, \ + .show_attribute = struct_in##_attr_show, \ + .store_attribute = struct_in##_attr_store, \ +}; \ + \ +static struct config_item_type struct_in##_langid_type = { \ + .ct_item_ops = &struct_in##_langid_item_ops, \ + .ct_attrs = struct_in##_langid_attrs, \ + .ct_owner = THIS_MODULE, \ +} + +#define USB_CONFIG_STRINGS_LANG(struct_in, struct_member) \ + static struct config_group *struct_in##_strings_make( \ + struct config_group *group, \ + const char *name) \ + { \ + struct struct_member *gi; \ + struct struct_in *gs; \ + struct struct_in *new; \ + int langs = 0; \ + int ret; \ + \ + new = kzalloc(sizeof(*new), GFP_KERNEL); \ + if (!new) \ + return ERR_PTR(-ENOMEM); \ + \ + ret = check_user_usb_string(name, &new->stringtab_dev); \ + if (ret) \ + goto err; \ + config_group_init_type_name(&new->group, name, \ + &struct_in##_langid_type); \ + \ + gi = container_of(group, struct struct_member, strings_group); \ + ret = -EEXIST; \ + list_for_each_entry(gs, &gi->string_list, list) { \ + if (gs->stringtab_dev.language == new->stringtab_dev.language) \ + goto err; \ + langs++; \ + } \ + ret = -EOVERFLOW; \ + if (langs >= MAX_USB_STRING_LANGS) \ + goto err; \ + \ + list_add_tail(&new->list, &gi->string_list); \ + return &new->group; \ +err: \ + kfree(new); \ + return ERR_PTR(ret); \ +} \ + \ +static void struct_in##_strings_drop( \ + struct config_group *group, \ + struct config_item *item) \ +{ \ + config_item_put(item); \ +} \ + \ +static struct configfs_group_operations struct_in##_strings_ops = { \ + .make_group = &struct_in##_strings_make, \ + .drop_item = &struct_in##_strings_drop, \ +}; \ + \ +static struct config_item_type struct_in##_strings_type = { \ + .ct_group_ops = &struct_in##_strings_ops, \ + .ct_owner = THIS_MODULE, \ +} + +#endif -- cgit v1.2.2