diff options
| -rw-r--r-- | drivers/usb/dwc3/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/usb/dwc3/Makefile | 2 | ||||
| -rw-r--r-- | drivers/usb/dwc3/core.c | 39 | ||||
| -rw-r--r-- | drivers/usb/dwc3/core.h | 9 | ||||
| -rw-r--r-- | drivers/usb/dwc3/host.c | 116 |
5 files changed, 164 insertions, 3 deletions
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index 3c1d67d324fd..2c05ec9cf352 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -2,6 +2,7 @@ config USB_DWC3 tristate "DesignWare USB3 DRD Core Support" depends on (USB || USB_GADGET) select USB_OTG_UTILS + select USB_XHCI_PLATFORM help Say Y or M here if your system has a Dual Role SuperSpeed USB controller based on the DesignWare USB3 IP Core. diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile index 593d1dbc465b..0926e71142b9 100644 --- a/drivers/usb/dwc3/Makefile +++ b/drivers/usb/dwc3/Makefile @@ -4,11 +4,13 @@ ccflags-$(CONFIG_USB_DWC3_VERBOSE) += -DVERBOSE_DEBUG obj-$(CONFIG_USB_DWC3) += dwc3.o dwc3-y := core.o +dwc3-y += host.o ifneq ($(CONFIG_USB_GADGET_DWC3),) dwc3-y += gadget.o ep0.o endif + ifneq ($(CONFIG_DEBUG_FS),) dwc3-y += debugfs.o endif diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index df151992e49d..410835e28cf6 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -350,6 +350,8 @@ static int __devinit dwc3_probe(struct platform_device *pdev) goto err1; } + dwc->res = res; + res = request_mem_region(res->start, resource_size(res), dev_name(&pdev->dev)); if (!res) { @@ -401,7 +403,6 @@ static int __devinit dwc3_probe(struct platform_device *pdev) mode = DWC3_MODE(dwc->hwparams.hwparams0); switch (mode) { - case DWC3_MODE_DRD: case DWC3_MODE_DEVICE: ret = dwc3_gadget_init(dwc); if (ret) { @@ -409,6 +410,26 @@ static int __devinit dwc3_probe(struct platform_device *pdev) goto err4; } break; + case DWC3_MODE_HOST: + ret = dwc3_host_init(dwc); + if (ret) { + dev_err(&pdev->dev, "failed to initialize host\n"); + goto err4; + } + break; + case DWC3_MODE_DRD: + ret = dwc3_host_init(dwc); + if (ret) { + dev_err(&pdev->dev, "failed to initialize host\n"); + goto err4; + } + + ret = dwc3_gadget_init(dwc); + if (ret) { + dev_err(&pdev->dev, "failed to initialize gadget\n"); + goto err4; + } + break; default: dev_err(&pdev->dev, "Unsupported mode of operation %d\n", mode); goto err4; @@ -427,10 +448,16 @@ static int __devinit dwc3_probe(struct platform_device *pdev) err5: switch (mode) { - case DWC3_MODE_DRD: case DWC3_MODE_DEVICE: dwc3_gadget_exit(dwc); break; + case DWC3_MODE_HOST: + dwc3_host_exit(dwc); + break; + case DWC3_MODE_DRD: + dwc3_host_exit(dwc); + dwc3_gadget_exit(dwc); + break; default: /* do nothing */ break; @@ -465,10 +492,16 @@ static int __devexit dwc3_remove(struct platform_device *pdev) dwc3_debugfs_exit(dwc); switch (dwc->mode) { - case DWC3_MODE_DRD: case DWC3_MODE_DEVICE: dwc3_gadget_exit(dwc); break; + case DWC3_MODE_HOST: + dwc3_host_exit(dwc); + break; + case DWC3_MODE_DRD: + dwc3_host_exit(dwc); + dwc3_gadget_exit(dwc); + break; default: /* do nothing */ break; diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index a3ef8f34bf77..a77554373224 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -41,6 +41,7 @@ #include <linux/device.h> #include <linux/spinlock.h> +#include <linux/ioport.h> #include <linux/list.h> #include <linux/dma-mapping.h> #include <linux/mm.h> @@ -560,6 +561,7 @@ struct dwc3_hwparams { * @ep0_bounce_addr: dma address of ep0_bounce * @lock: for synchronizing * @dev: pointer to our struct device + * @xhci: pointer to our xHCI child * @event_buffer_list: a list of event buffers * @gadget: device side representation of the peripheral controller * @gadget_driver: pointer to the gadget driver @@ -598,6 +600,9 @@ struct dwc3 { spinlock_t lock; struct device *dev; + struct platform_device *xhci; + struct resource *res; + struct dwc3_event_buffer *ev_buffs[DWC3_EVENT_BUFFERS_MAX]; struct dwc3_ep *eps[DWC3_ENDPOINTS_NUM]; @@ -782,4 +787,8 @@ union dwc3_event { #define DWC3_HAS_XHCI BIT(1) #define DWC3_HAS_OTG BIT(3) +/* prototypes */ +int dwc3_host_init(struct dwc3 *dwc); +void dwc3_host_exit(struct dwc3 *dwc); + #endif /* __DRIVERS_USB_DWC3_CORE_H */ diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c new file mode 100644 index 000000000000..9b300a26fceb --- /dev/null +++ b/drivers/usb/dwc3/host.c @@ -0,0 +1,116 @@ +/** + * host.c - DesignWare USB3 DRD Controller Host Glue + * + * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com + * + * Authors: Felipe Balbi <balbi@ti.com>, + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The names of the above-listed copyright holders may not be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2, as published by the Free + * Software Foundation. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/spinlock.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/io.h> +#include <linux/list.h> +#include <linux/delay.h> +#include <linux/dma-mapping.h> + +#include "core.h" +#include "io.h" + +#include "debug.h" + +static struct resource generic_resources[] = { + { + .flags = IORESOURCE_IRQ, + }, + { + .flags = IORESOURCE_MEM, + }, +}; + +int dwc3_host_init(struct dwc3 *dwc) +{ + struct platform_device *xhci; + int ret; + + xhci = platform_device_alloc("xhci", -1); + if (!xhci) { + dev_err(dwc->dev, "couldn't allocate xHCI device\n"); + ret = -ENOMEM; + goto err0; + } + + dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask); + + xhci->dev.parent = dwc->dev; + xhci->dev.dma_mask = dwc->dev->dma_mask; + xhci->dev.dma_parms = dwc->dev->dma_parms; + + dwc->xhci = xhci; + + /* setup resources */ + generic_resources[0].start = dwc->irq; + + generic_resources[1].start = dwc->res->start; + generic_resources[1].end = dwc->res->start + 0x7fff; + + ret = platform_device_add_resources(xhci, generic_resources, + ARRAY_SIZE(generic_resources)); + if (ret) { + dev_err(dwc->dev, "couldn't add resources to xHCI device\n"); + goto err1; + } + + ret = platform_device_add(xhci); + if (ret) { + dev_err(dwc->dev, "failed to register xHCI device\n"); + goto err1; + } + + return 0; + +err1: + platform_device_put(xhci); + +err0: + return ret; +} + +void dwc3_host_exit(struct dwc3 *dwc) +{ + platform_device_unregister(dwc->xhci); +} |