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Greg Kroah-Hartman
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Dec 15, 2010
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,2 +1,2 @@ | ||
| --- | ||
| refs/heads/master: e4a2b3565fc7ac2d70361a36337be57a59d783da | ||
| refs/heads/master: 5cdc5bd8b2b1190cb54548c03194b154b4892e2a |
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| Original file line number | Diff line number | Diff line change |
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| /* Copyright (c) 2010, Code Aurora Forum. All rights reserved. | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License version 2 and | ||
| * only version 2 as published by the Free Software Foundation. | ||
| * | ||
| * 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 Street, Fifth Floor, Boston, MA | ||
| * 02110-1301, USA. | ||
| * | ||
| */ | ||
|
|
||
| #include <linux/module.h> | ||
| #include <linux/platform_device.h> | ||
| #include <linux/pm_runtime.h> | ||
| #include <linux/usb/msm_hsusb_hw.h> | ||
| #include <linux/usb/ulpi.h> | ||
|
|
||
| #include "ci13xxx_udc.c" | ||
|
|
||
| #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; | ||
| int val; | ||
|
|
||
| switch (event) { | ||
| case CI13XXX_CONTROLLER_RESET_EVENT: | ||
| dev_dbg(dev, "CI13XXX_CONTROLLER_RESET_EVENT received\n"); | ||
| writel(0, USB_AHBBURST); | ||
| writel(0, USB_AHBMODE); | ||
| break; | ||
| case CI13XXX_CONTROLLER_STOPPED_EVENT: | ||
| dev_dbg(dev, "CI13XXX_CONTROLLER_STOPPED_EVENT received\n"); | ||
| /* | ||
| * Put the transceiver in non-driving mode. Otherwise host | ||
| * may not detect soft-disconnection. | ||
| */ | ||
| val = otg_io_read(udc->transceiver, ULPI_FUNC_CTRL); | ||
| val &= ~ULPI_FUNC_CTRL_OPMODE_MASK; | ||
| val |= ULPI_FUNC_CTRL_OPMODE_NONDRIVING; | ||
| otg_io_write(udc->transceiver, val, ULPI_FUNC_CTRL); | ||
| break; | ||
| default: | ||
| dev_dbg(dev, "unknown ci13xxx_udc event\n"); | ||
| break; | ||
| } | ||
| } | ||
|
|
||
| static struct ci13xxx_udc_driver ci13xxx_msm_udc_driver = { | ||
| .name = "ci13xxx_msm", | ||
| .flags = CI13XXX_REGS_SHARED | | ||
| CI13XXX_REQUIRE_TRANSCEIVER | | ||
| CI13XXX_PULLUP_ON_VBUS | | ||
| CI13XXX_DISABLE_STREAMING, | ||
|
|
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| .notify_event = ci13xxx_msm_notify_event, | ||
| }; | ||
|
|
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| static int ci13xxx_msm_probe(struct platform_device *pdev) | ||
| { | ||
| struct resource *res; | ||
| void __iomem *regs; | ||
| int irq; | ||
| 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"); | ||
| return -ENOMEM; | ||
| } | ||
|
|
||
| ret = udc_probe(&ci13xxx_msm_udc_driver, &pdev->dev, regs); | ||
| if (ret < 0) { | ||
| dev_err(&pdev->dev, "udc_probe failed\n"); | ||
| goto iounmap; | ||
| } | ||
|
|
||
| irq = platform_get_irq(pdev, 0); | ||
| if (irq < 0) { | ||
| dev_err(&pdev->dev, "IRQ not found\n"); | ||
| ret = -ENXIO; | ||
| goto udc_remove; | ||
| } | ||
|
|
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| 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; | ||
| } | ||
|
|
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| pm_runtime_no_callbacks(&pdev->dev); | ||
| pm_runtime_enable(&pdev->dev); | ||
|
|
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| return 0; | ||
|
|
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| udc_remove: | ||
| udc_remove(); | ||
| iounmap: | ||
| iounmap(regs); | ||
|
|
||
| return ret; | ||
| } | ||
|
|
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| static struct platform_driver ci13xxx_msm_driver = { | ||
| .probe = ci13xxx_msm_probe, | ||
| .driver = { .name = "msm_hsusb", }, | ||
| }; | ||
|
|
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| static int __init ci13xxx_msm_init(void) | ||
| { | ||
| return platform_driver_register(&ci13xxx_msm_driver); | ||
| } | ||
| module_init(ci13xxx_msm_init); |
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