diff options
| -rw-r--r-- | drivers/usb/gadget/Kconfig | 18 | ||||
| -rw-r--r-- | drivers/usb/gadget/Makefile | 1 | ||||
| -rw-r--r-- | drivers/usb/gadget/ci13xxx_msm.c | 58 | ||||
| -rw-r--r-- | drivers/usb/gadget/ci13xxx_pci.c | 124 | ||||
| -rw-r--r-- | drivers/usb/gadget/ci13xxx_udc.c | 78 | ||||
| -rw-r--r-- | drivers/usb/gadget/ci13xxx_udc.h | 3 |
6 files changed, 180 insertions, 102 deletions
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 55aad9278f77..47e086a0b7f2 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -378,16 +378,28 @@ config USB_FSL_QE Set CONFIG_USB_GADGET to "m" to build this driver as a dynamically linked module called "fsl_qe_udc". +config USB_CHIPIDEA_UDC + tristate "ChipIdea UDC driver" + select USB_GADGET_DUALSPEED + help + This module contains the ChipIdea USB device controller driver; + you will also need platform driver like ci13xxx_pci or ci13xxx_msm + to use it. + + Say "y" to link the driver statically, or "m" to build a + dynamically linked module called "ci13xxx_udc", which will serve + as a driver for ChipIdea udc on different platforms. + config USB_CI13XXX_PCI tristate "MIPS USB CI13xxx PCI UDC" - depends on PCI + depends on PCI && USB_CHIPIDEA_UDC select USB_GADGET_DUALSPEED help MIPS USB IP core family device controller Currently it only supports IP part number CI13412 Say "y" to link the driver statically, or "m" to build a - dynamically linked module called "ci13xxx_udc" and force all + dynamically linked module called "ci13xxx_pci" and force all gadget drivers to also be dynamically linked. config USB_NET2272 @@ -484,7 +496,7 @@ config USB_EG20T config USB_CI13XXX_MSM tristate "MIPS USB CI13xxx for MSM" - depends on ARCH_MSM + depends on ARCH_MSM && USB_CHIPIDEA_UDC select USB_GADGET_DUALSPEED select USB_MSM_OTG help diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index 1565253bfdd2..3786c7cdd807 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -22,6 +22,7 @@ fsl_usb2_udc-$(CONFIG_ARCH_MXC) += fsl_mxc_udc.o obj-$(CONFIG_USB_M66592) += m66592-udc.o obj-$(CONFIG_USB_R8A66597) += r8a66597-udc.o obj-$(CONFIG_USB_FSL_QE) += fsl_qe_udc.o +obj-$(CONFIG_USB_CHIPIDEA_UDC) += ci13xxx_udc.o obj-$(CONFIG_USB_CI13XXX_PCI) += ci13xxx_pci.o obj-$(CONFIG_USB_S3C_HSOTG) += s3c-hsotg.o obj-$(CONFIG_USB_S3C_HSUDC) += s3c-hsudc.o diff --git a/drivers/usb/gadget/ci13xxx_msm.c b/drivers/usb/gadget/ci13xxx_msm.c index 6e77446ef52a..418de0e61c5a 100644 --- a/drivers/usb/gadget/ci13xxx_msm.c +++ b/drivers/usb/gadget/ci13xxx_msm.c @@ -10,16 +10,12 @@ #include <linux/pm_runtime.h> #include <linux/usb/msm_hsusb_hw.h> #include <linux/usb/ulpi.h> +#include <linux/usb/gadget.h> -#include "ci13xxx_udc.c" +#include "ci13xxx_udc.h" #define MSM_USB_BASE (udc->regs) -static irqreturn_t msm_udc_irq(int irq, void *data) -{ - return udc_irq(); -} - static void ci13xxx_msm_notify_event(struct ci13xxx *udc, unsigned event) { struct device *dev = udc->gadget.dev.parent; @@ -60,54 +56,40 @@ static struct ci13xxx_udc_driver ci13xxx_msm_udc_driver = { static int ci13xxx_msm_probe(struct platform_device *pdev) { - struct resource *res; - void __iomem *regs; - int irq; + struct platform_device *plat_ci; int ret; dev_dbg(&pdev->dev, "ci13xxx_msm_probe\n"); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "failed to get platform resource mem\n"); - return -ENXIO; - } - - regs = ioremap(res->start, resource_size(res)); - if (!regs) { - dev_err(&pdev->dev, "ioremap failed\n"); + plat_ci = platform_device_alloc("ci_udc", -1); + if (!plat_ci) { + dev_err(&pdev->dev, "can't allocate ci_udc platform device\n"); return -ENOMEM; } - ret = udc_probe(&ci13xxx_msm_udc_driver, &pdev->dev, regs, - DEF_CAPOFFSET); - if (ret < 0) { - dev_err(&pdev->dev, "udc_probe failed\n"); - goto iounmap; + ret = platform_device_add_resources(plat_ci, pdev->resource, + pdev->num_resources); + if (ret) { + dev_err(&pdev->dev, "can't add resources to platform device\n"); + goto put_platform; } - irq = platform_get_irq(pdev, 0); - if (irq < 0) { - dev_err(&pdev->dev, "IRQ not found\n"); - ret = -ENXIO; - goto udc_remove; - } + ret = platform_device_add_data(plat_ci, &ci13xxx_msm_udc_driver, + sizeof(ci13xxx_msm_udc_driver)); + if (ret) + goto put_platform; - ret = request_irq(irq, msm_udc_irq, IRQF_SHARED, pdev->name, pdev); - if (ret < 0) { - dev_err(&pdev->dev, "request_irq failed\n"); - goto udc_remove; - } + ret = platform_device_add(plat_ci); + if (ret) + goto put_platform; pm_runtime_no_callbacks(&pdev->dev); pm_runtime_enable(&pdev->dev); return 0; -udc_remove: - udc_remove(); -iounmap: - iounmap(regs); +put_platform: + platform_device_put(plat_ci); return ret; } diff --git a/drivers/usb/gadget/ci13xxx_pci.c b/drivers/usb/gadget/ci13xxx_pci.c index ef5da49eb809..ea03fabd4d97 100644 --- a/drivers/usb/gadget/ci13xxx_pci.c +++ b/drivers/usb/gadget/ci13xxx_pci.c @@ -10,10 +10,13 @@ * published by the Free Software Foundation. */ +#include <linux/platform_device.h> #include <linux/module.h> #include <linux/pci.h> +#include <linux/interrupt.h> +#include <linux/usb/gadget.h> -#include "ci13xxx_udc.c" +#include "ci13xxx_udc.h" /* driver name */ #define UDC_DRIVER_NAME "ci13xxx_pci" @@ -21,25 +24,14 @@ /****************************************************************************** * PCI block *****************************************************************************/ -/** - * ci13xxx_pci_irq: interrut handler - * @irq: irq number - * @pdev: USB Device Controller interrupt source - * - * This function returns IRQ_HANDLED if the IRQ has been handled - * This is an ISR don't trace, use attribute interface instead - */ -static irqreturn_t ci13xxx_pci_irq(int irq, void *pdev) -{ - if (irq == 0) { - dev_err(&((struct pci_dev *)pdev)->dev, "Invalid IRQ0 usage!"); - return IRQ_HANDLED; - } - return udc_irq(); -} +struct ci13xxx_udc_driver pci_driver = { + .name = UDC_DRIVER_NAME, + .capoffset = DEF_CAPOFFSET, +}; -static struct ci13xxx_udc_driver ci13xxx_pci_udc_driver = { +struct ci13xxx_udc_driver langwell_pci_driver = { .name = UDC_DRIVER_NAME, + .capoffset = 0, }; /** @@ -54,9 +46,10 @@ static struct ci13xxx_udc_driver ci13xxx_pci_udc_driver = { static int __devinit ci13xxx_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { - void __iomem *regs = NULL; - uintptr_t capoffset = DEF_CAPOFFSET; - int retval = 0; + struct ci13xxx_udc_driver *driver = (void *)id->driver_data; + struct platform_device *plat_ci; + struct resource res[3]; + int retval = 0, nres = 2; if (id == NULL) return -EINVAL; @@ -71,45 +64,50 @@ static int __devinit ci13xxx_pci_probe(struct pci_dev *pdev, goto disable_device; } - retval = pci_request_regions(pdev, UDC_DRIVER_NAME); - if (retval) - goto disable_device; - - /* BAR 0 holds all the registers */ - regs = pci_iomap(pdev, 0, 0); - if (!regs) { - dev_err(&pdev->dev, "Error mapping memory!"); - retval = -EFAULT; - goto release_regions; - } - pci_set_drvdata(pdev, (__force void *)regs); - + pci_set_power_state(pdev, PCI_D0); pci_set_master(pdev); pci_try_set_mwi(pdev); - if (pdev->vendor == PCI_VENDOR_ID_INTEL) - capoffset = 0; + plat_ci = platform_device_alloc("ci_udc", -1); + if (!plat_ci) { + dev_err(&pdev->dev, "can't allocate ci_udc platform device\n"); + retval = -ENOMEM; + goto disable_device; + } - retval = udc_probe(&ci13xxx_pci_udc_driver, &pdev->dev, regs, - capoffset); + memset(res, 0, sizeof(res)); + res[0].start = pci_resource_start(pdev, 0); + res[0].end = pci_resource_end(pdev, 0); + res[0].flags = IORESOURCE_MEM; + res[1].start = pdev->irq; + res[1].flags = IORESOURCE_IRQ; + + retval = platform_device_add_resources(plat_ci, res, nres); + if (retval) { + dev_err(&pdev->dev, "can't add resources to platform device\n"); + goto put_platform; + } + + retval = platform_device_add_data(plat_ci, driver, sizeof(*driver)); if (retval) - goto iounmap; + goto put_platform; - /* our device does not have MSI capability */ + dma_set_coherent_mask(&plat_ci->dev, pdev->dev.coherent_dma_mask); + plat_ci->dev.dma_mask = pdev->dev.dma_mask; + plat_ci->dev.dma_parms = pdev->dev.dma_parms; + plat_ci->dev.parent = &pdev->dev; - retval = request_irq(pdev->irq, ci13xxx_pci_irq, IRQF_SHARED, - UDC_DRIVER_NAME, pdev); + pci_set_drvdata(pdev, plat_ci); + + retval = platform_device_add(plat_ci); if (retval) - goto gadget_remove; + goto put_platform; return 0; - gadget_remove: - udc_remove(); - iounmap: - pci_iounmap(pdev, regs); - release_regions: - pci_release_regions(pdev); + put_platform: + pci_set_drvdata(pdev, NULL); + platform_device_put(plat_ci); disable_device: pci_disable_device(pdev); done: @@ -126,10 +124,10 @@ static int __devinit ci13xxx_pci_probe(struct pci_dev *pdev, */ static void __devexit ci13xxx_pci_remove(struct pci_dev *pdev) { - free_irq(pdev->irq, pdev); - udc_remove(); - pci_iounmap(pdev, (__force void __iomem *)pci_get_drvdata(pdev)); - pci_release_regions(pdev); + struct platform_device *plat_ci = pci_get_drvdata(pdev); + + platform_device_unregister(plat_ci); + pci_set_drvdata(pdev, NULL); pci_disable_device(pdev); } @@ -140,10 +138,22 @@ static void __devexit ci13xxx_pci_remove(struct pci_dev *pdev) * Check "pci.h" for details */ static DEFINE_PCI_DEVICE_TABLE(ci13xxx_pci_id_table) = { - { PCI_DEVICE(0x153F, 0x1004) }, - { PCI_DEVICE(0x153F, 0x1006) }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811) }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829) }, + { + PCI_DEVICE(0x153F, 0x1004), + .driver_data = (kernel_ulong_t)&pci_driver, + }, + { + PCI_DEVICE(0x153F, 0x1006), + .driver_data = (kernel_ulong_t)&pci_driver, + }, + { + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811), + .driver_data = (kernel_ulong_t)&langwell_pci_driver, + }, + { + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829), + .driver_data = (kernel_ulong_t)&langwell_pci_driver, + }, { 0, 0, 0, 0, 0, 0, 0 /* end: all zeroes */ } }; MODULE_DEVICE_TABLE(pci, ci13xxx_pci_id_table); diff --git a/drivers/usb/gadget/ci13xxx_udc.c b/drivers/usb/gadget/ci13xxx_udc.c index 3b47ca1b64ee..009a3cd5895d 100644 --- a/drivers/usb/gadget/ci13xxx_udc.c +++ b/drivers/usb/gadget/ci13xxx_udc.c @@ -55,6 +55,8 @@ #include <linux/dmapool.h> #include <linux/dma-mapping.h> #include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/module.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/irq.h> @@ -67,7 +69,6 @@ #include "ci13xxx_udc.h" - /****************************************************************************** * DEFINE *****************************************************************************/ @@ -2806,7 +2807,7 @@ static int ci13xxx_stop(struct usb_gadget_driver *driver) * This function returns IRQ_HANDLED if the IRQ has been handled * It locks access to registers */ -static irqreturn_t udc_irq(void) +static irqreturn_t udc_irq(int irq, void *data) { struct ci13xxx *udc = _udc; irqreturn_t retval; @@ -2901,7 +2902,7 @@ static void udc_release(struct device *dev) * Kernel assumes 32-bit DMA operations by default, no need to dma_set_mask */ static int udc_probe(struct ci13xxx_udc_driver *driver, struct device *dev, - void __iomem *regs, uintptr_t capoffset) + void __iomem *regs) { struct ci13xxx *udc; int retval = 0; @@ -2935,7 +2936,7 @@ static int udc_probe(struct ci13xxx_udc_driver *driver, struct device *dev, udc->gadget.dev.parent = dev; udc->gadget.dev.release = udc_release; - retval = hw_device_init(udc, regs, capoffset); + retval = hw_device_init(udc, regs, driver->capoffset); if (retval < 0) goto free_udc; @@ -3033,3 +3034,72 @@ static void udc_remove(void) kfree(udc); _udc = NULL; } + +static int __devinit ci_udc_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct ci13xxx_udc_driver *driver = dev->platform_data; + struct resource *res; + void __iomem *base; + int ret; + + if (!driver) { + dev_err(dev, "platform data missing\n"); + return -ENODEV; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(dev, "missing resource\n"); + return -ENODEV; + } + + base = devm_request_and_ioremap(dev, res); + if (!res) { + dev_err(dev, "can't request and ioremap resource\n"); + return -ENOMEM; + } + + ret = udc_probe(driver, dev, base); + if (ret) + return ret; + + _udc->irq = platform_get_irq(pdev, 0); + if (_udc->irq < 0) { + dev_err(dev, "missing IRQ\n"); + ret = -ENODEV; + goto out; + } + + ret = request_irq(_udc->irq, udc_irq, IRQF_SHARED, driver->name, _udc); + +out: + if (ret) + udc_remove(); + + return ret; +} + +static int __devexit ci_udc_remove(struct platform_device *pdev) +{ + free_irq(_udc->irq, _udc); + udc_remove(); + + return 0; +} + +static struct platform_driver ci_udc_driver = { + .probe = ci_udc_probe, + .remove = __devexit_p(ci_udc_remove), + .driver = { + .name = "ci_udc", + }, +}; + +module_platform_driver(ci_udc_driver); + +MODULE_ALIAS("platform:ci_udc"); +MODULE_ALIAS("platform:ci13xxx"); +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("David Lopo <dlopo@chipidea.mips.com>"); +MODULE_DESCRIPTION("ChipIdea UDC Driver"); diff --git a/drivers/usb/gadget/ci13xxx_udc.h b/drivers/usb/gadget/ci13xxx_udc.h index f17ffecc36c2..f605090777ce 100644 --- a/drivers/usb/gadget/ci13xxx_udc.h +++ b/drivers/usb/gadget/ci13xxx_udc.h @@ -103,6 +103,8 @@ struct ci13xxx_ep { struct ci13xxx; struct ci13xxx_udc_driver { const char *name; + /* offset of the capability registers */ + uintptr_t capoffset; unsigned long flags; #define CI13XXX_REGS_SHARED BIT(0) #define CI13XXX_REQUIRE_TRANSCEIVER BIT(1) @@ -144,6 +146,7 @@ struct ci13xxx { u8 test_mode; /* the selected test mode */ struct hw_bank hw_bank; + int irq; struct usb_gadget_driver *driver; /* 3rd party gadget driver */ struct ci13xxx_udc_driver *udc_driver; /* device controller driver */ int vbus_active; /* is VBUS active */ |