Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6 (f87c8e80) · Commits · e / devices / android_kernel_oneplus_sm7250

Documentation/usb/acm.txt

+4 −0

Original line number	Diff line number	Diff line
		@@ -46,6 +46,10 @@ Abstract Control Model (USB CDC ACM) specification.

		3Com USR ISDN Pro TA

		Some cell phones also connect via USB. I know the following phones work:

		SonyEricsson K800i

		Unfortunately many modems and most ISDN TAs use proprietary interfaces and
		thus won't work with this drivers. Check for ACM compliance before buying.

drivers/usb/class/usblp.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -217,6 +217,7 @@ static const struct quirk_printer_struct quirk_printers[] = {
		{ 0x0409, 0xbef4, USBLP_QUIRK_BIDIR }, /* NEC Picty760 (HP OEM) */
		{ 0x0409, 0xf0be, USBLP_QUIRK_BIDIR }, /* NEC Picty920 (HP OEM) */
		{ 0x0409, 0xf1be, USBLP_QUIRK_BIDIR }, /* NEC Picty800 (HP OEM) */
		{ 0x0482, 0x0010, USBLP_QUIRK_BIDIR }, /* Kyocera Mita FS 820, by zut <kernel@zut.de> */
		{ 0, 0 }
		};

drivers/usb/core/endpoint.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -268,6 +268,7 @@ static void ep_device_release(struct device *dev)
		struct ep_device *ep_dev = to_ep_device(dev);

		dev_dbg(dev, "%s called for %s\n", __FUNCTION__, dev->bus_id);
		endpoint_free_minor(ep_dev);
		kfree(ep_dev);
		}

		@@ -349,7 +350,6 @@ void usb_remove_ep_files(struct usb_host_endpoint *endpoint)
		sprintf(name, "ep_%02x", endpoint->desc.bEndpointAddress);
		sysfs_remove_link(&ep_dev->dev.parent->kobj, name);
		sysfs_remove_group(&ep_dev->dev.kobj, &ep_dev_attr_grp);
		endpoint_free_minor(ep_dev);
		device_unregister(&ep_dev->dev);
		endpoint->ep_dev = NULL;
		destroy_endpoint_class();

drivers/usb/gadget/omap_udc.c

+192 −53

Original line number	Diff line number	Diff line
		@@ -42,6 +42,7 @@
		#include <linux/usb_gadget.h>
		#include <linux/usb/otg.h>
		#include <linux/dma-mapping.h>
		#include <linux/clk.h>

		#include <asm/byteorder.h>
		#include <asm/io.h>
		@@ -60,6 +61,11 @@
		/* bulk DMA seems to be behaving for both IN and OUT */
		#define USE_DMA

		/* FIXME: OMAP2 currently has some problem in DMA mode */
		#ifdef CONFIG_ARCH_OMAP2
		#undef USE_DMA
		#endif

		/* ISO too */
		#define USE_ISO

		@@ -99,7 +105,7 @@ static unsigned fifo_mode = 0;
		* boot parameter "omap_udc:fifo_mode=42"
		*/
		module_param (fifo_mode, uint, 0);
		MODULE_PARM_DESC (fifo_mode, "endpoint setup (0 == default)");
		MODULE_PARM_DESC (fifo_mode, "endpoint configuration");

		#ifdef USE_DMA
		static unsigned use_dma = 1;
		@@ -542,9 +548,9 @@ static inline dma_addr_t dma_csac(unsigned lch)
		/* omap 3.2/3.3 erratum: sometimes 0 is returned if CSAC/CDAC is
		* read before the DMA controller finished disabling the channel.
		*/
		csac = omap_readw(OMAP_DMA_CSAC(lch));
		csac = OMAP_DMA_CSAC_REG(lch);
		if (csac == 0)
		csac = omap_readw(OMAP_DMA_CSAC(lch));
		csac = OMAP_DMA_CSAC_REG(lch);
		return csac;
		}

		@@ -555,9 +561,9 @@ static inline dma_addr_t dma_cdac(unsigned lch)
		/* omap 3.2/3.3 erratum: sometimes 0 is returned if CSAC/CDAC is
		* read before the DMA controller finished disabling the channel.
		*/
		cdac = omap_readw(OMAP_DMA_CDAC(lch));
		cdac = OMAP_DMA_CDAC_REG(lch);
		if (cdac == 0)
		cdac = omap_readw(OMAP_DMA_CDAC(lch));
		cdac = OMAP_DMA_CDAC_REG(lch);
		return cdac;
		}

		@@ -582,7 +588,7 @@ static u16 dma_src_len(struct omap_ep *ep, dma_addr_t start)
		}

		#define DMA_DEST_LAST(x) (cpu_is_omap15xx() \
		? omap_readw(OMAP_DMA_CSAC(x)) /* really: CPC */ \
		? OMAP_DMA_CSAC_REG(x) /* really: CPC */ \
		: dma_cdac(x))

		static u16 dma_dest_len(struct omap_ep *ep, dma_addr_t start)
		@@ -620,17 +626,19 @@ static void next_in_dma(struct omap_ep ep, struct omap_req req)
		\|\| (cpu_is_omap15xx() && length < ep->maxpacket)) {
		txdma_ctrl = UDC_TXN_EOT \| length;
		omap_set_dma_transfer_params(ep->lch, OMAP_DMA_DATA_TYPE_S8,
		length, 1, sync_mode);
		length, 1, sync_mode, 0, 0);
		} else {
		length = min(length / ep->maxpacket,
		(unsigned) UDC_TXN_TSC + 1);
		txdma_ctrl = length;
		omap_set_dma_transfer_params(ep->lch, OMAP_DMA_DATA_TYPE_S16,
		ep->ep.maxpacket >> 1, length, sync_mode);
		ep->ep.maxpacket >> 1, length, sync_mode,
		0, 0);
		length *= ep->maxpacket;
		}
		omap_set_dma_src_params(ep->lch, OMAP_DMA_PORT_EMIFF,
		OMAP_DMA_AMODE_POST_INC, req->req.dma + req->req.actual);
		OMAP_DMA_AMODE_POST_INC, req->req.dma + req->req.actual,
		0, 0);

		omap_start_dma(ep->lch);
		ep->dma_counter = dma_csac(ep->lch);
		@@ -675,9 +683,11 @@ static void next_out_dma(struct omap_ep ep, struct omap_req req)
		req->dma_bytes = packets * ep->ep.maxpacket;
		omap_set_dma_transfer_params(ep->lch, OMAP_DMA_DATA_TYPE_S16,
		ep->ep.maxpacket >> 1, packets,
		OMAP_DMA_SYNC_ELEMENT);
		OMAP_DMA_SYNC_ELEMENT,
		0, 0);
		omap_set_dma_dest_params(ep->lch, OMAP_DMA_PORT_EMIFF,
		OMAP_DMA_AMODE_POST_INC, req->req.dma + req->req.actual);
		OMAP_DMA_AMODE_POST_INC, req->req.dma + req->req.actual,
		0, 0);
		ep->dma_counter = DMA_DEST_LAST(ep->lch);

		UDC_RXDMA_REG(ep->dma_channel) = UDC_RXN_STOP \| (packets - 1);
		@@ -820,7 +830,8 @@ static void dma_channel_claim(struct omap_ep *ep, unsigned channel)
		omap_set_dma_dest_params(ep->lch,
		OMAP_DMA_PORT_TIPB,
		OMAP_DMA_AMODE_CONSTANT,
		(unsigned long) io_v2p((u32)&UDC_DATA_DMA_REG));
		(unsigned long) io_v2p((u32)&UDC_DATA_DMA_REG),
		0, 0);
		}
		} else {
		status = omap_request_dma(OMAP_DMA_USB_W2FC_RX0 - 1 + channel,
		@@ -831,7 +842,8 @@ static void dma_channel_claim(struct omap_ep *ep, unsigned channel)
		omap_set_dma_src_params(ep->lch,
		OMAP_DMA_PORT_TIPB,
		OMAP_DMA_AMODE_CONSTANT,
		(unsigned long) io_v2p((u32)&UDC_DATA_DMA_REG));
		(unsigned long) io_v2p((u32)&UDC_DATA_DMA_REG),
		0, 0);
		/* EMIFF */
		omap_set_dma_dest_burst_mode(ep->lch,
		OMAP_DMA_DATA_BURST_4);
		@@ -846,7 +858,7 @@ static void dma_channel_claim(struct omap_ep *ep, unsigned channel)

		/* channel type P: hw synch (fifo) */
		if (!cpu_is_omap15xx())
		omap_writew(2, OMAP_DMA_LCH_CTRL(ep->lch));
		OMAP1_DMA_LCH_CTRL_REG(ep->lch) = 2;
		}

		just_restart:
		@@ -893,7 +905,7 @@ static void dma_channel_release(struct omap_ep *ep)
		else
		req = NULL;

		active = ((1 << 7) & omap_readl(OMAP_DMA_CCR(ep->lch))) != 0;
		active = ((1 << 7) & OMAP_DMA_CCR_REG(ep->lch)) != 0;

		DBG("%s release %s %cxdma%d %p\n", ep->ep.name,
		active ? "active" : "idle",
		@@ -1298,6 +1310,23 @@ static void pullup_disable(struct omap_udc *udc)
		UDC_SYSCON1_REG &= ~UDC_PULLUP_EN;
		}

		static struct omap_udc *udc;

		static void omap_udc_enable_clock(int enable)
		{
		if (udc == NULL \|\| udc->dc_clk == NULL \|\| udc->hhc_clk == NULL)
		return;

		if (enable) {
		clk_enable(udc->dc_clk);
		clk_enable(udc->hhc_clk);
		udelay(100);
		} else {
		clk_disable(udc->hhc_clk);
		clk_disable(udc->dc_clk);
		}
		}

		/*
		* Called by whatever detects VBUS sessions: external transceiver
		* driver, or maybe GPIO0 VBUS IRQ. May request 48 MHz clock.
		@@ -1318,10 +1347,22 @@ static int omap_vbus_session(struct usb_gadget *gadget, int is_active)
		else
		FUNC_MUX_CTRL_0_REG &= ~VBUS_CTRL_1510;
		}
		if (udc->dc_clk != NULL && is_active) {
		if (!udc->clk_requested) {
		omap_udc_enable_clock(1);
		udc->clk_requested = 1;
		}
		}
		if (can_pullup(udc))
		pullup_enable(udc);
		else
		pullup_disable(udc);
		if (udc->dc_clk != NULL && !is_active) {
		if (udc->clk_requested) {
		omap_udc_enable_clock(0);
		udc->clk_requested = 0;
		}
		}
		spin_unlock_irqrestore(&udc->lock, flags);
		return 0;
		}
		@@ -1866,7 +1907,7 @@ static void pio_out_timer(unsigned long _ep)

		spin_lock_irqsave(&ep->udc->lock, flags);
		if (!list_empty(&ep->queue) && ep->ackwait) {
		use_ep(ep, 0);
		use_ep(ep, UDC_EP_SEL);
		stat_flg = UDC_STAT_FLG_REG;

		if ((stat_flg & UDC_ACK) && (!(stat_flg & UDC_FIFO_EN)
		@@ -1876,12 +1917,12 @@ static void pio_out_timer(unsigned long _ep)
		VDBG("%s: lose, %04x\n", ep->ep.name, stat_flg);
		req = container_of(ep->queue.next,
		struct omap_req, queue);
		UDC_EP_NUM_REG = ep->bEndpointAddress \| UDC_EP_SEL;
		(void) read_fifo(ep, req);
		UDC_EP_NUM_REG = ep->bEndpointAddress;
		UDC_CTRL_REG = UDC_SET_FIFO_EN;
		ep->ackwait = 1 + ep->double_buf;
		}
		} else
		deselect_ep();
		}
		mod_timer(&ep->timer, PIO_OUT_TIMEOUT);
		spin_unlock_irqrestore(&ep->udc->lock, flags);
		@@ -2028,7 +2069,17 @@ static irqreturn_t omap_udc_iso_irq(int irq, void *_dev)

		/-------------------------------------------------------------------------/

		static struct omap_udc *udc;
		static inline int machine_needs_vbus_session(void)
		{
		return (machine_is_omap_innovator()
		\|\| machine_is_omap_osk()
		\|\| machine_is_omap_apollon()
		#ifndef CONFIG_MACH_OMAP_H4_OTG
		\|\| machine_is_omap_h4()
		#endif
		\|\| machine_is_sx1()
		);
		}

		int usb_gadget_register_driver (struct usb_gadget_driver *driver)
		{
		@@ -2070,6 +2121,9 @@ int usb_gadget_register_driver (struct usb_gadget_driver *driver)
		udc->gadget.dev.driver = &driver->driver;
		spin_unlock_irqrestore(&udc->lock, flags);

		if (udc->dc_clk != NULL)
		omap_udc_enable_clock(1);

		status = driver->bind (&udc->gadget);
		if (status) {
		DBG("bind to %s --> %d\n", driver->driver.name, status);
		@@ -2103,10 +2157,12 @@ int usb_gadget_register_driver (struct usb_gadget_driver *driver)
		/* boards that don't have VBUS sensing can't autogate 48MHz;
		* can't enter deep sleep while a gadget driver is active.
		*/
		if (machine_is_omap_innovator() \|\| machine_is_omap_osk())
		if (machine_needs_vbus_session())
		omap_vbus_session(&udc->gadget, 1);

		done:
		if (udc->dc_clk != NULL)
		omap_udc_enable_clock(0);
		return status;
		}
		EXPORT_SYMBOL(usb_gadget_register_driver);
		@@ -2121,7 +2177,10 @@ int usb_gadget_unregister_driver (struct usb_gadget_driver *driver)
		if (!driver \|\| driver != udc->driver \|\| !driver->unbind)
		return -EINVAL;

		if (machine_is_omap_innovator() \|\| machine_is_omap_osk())
		if (udc->dc_clk != NULL)
		omap_udc_enable_clock(1);

		if (machine_needs_vbus_session())
		omap_vbus_session(&udc->gadget, 0);

		if (udc->transceiver)
		@@ -2137,6 +2196,8 @@ int usb_gadget_unregister_driver (struct usb_gadget_driver *driver)
		udc->gadget.dev.driver = NULL;
		udc->driver = NULL;

		if (udc->dc_clk != NULL)
		omap_udc_enable_clock(0);
		DBG("unregistered driver '%s'\n", driver->driver.name);
		return status;
		}
		@@ -2228,11 +2289,18 @@ static int proc_otg_show(struct seq_file *s)
		{
		u32 tmp;
		u32 trans;
		char *ctrl_name;

		tmp = OTG_REV_REG;
		if (cpu_is_omap24xx()) {
		ctrl_name = "control_devconf";
		trans = CONTROL_DEVCONF_REG;
		} else {
		ctrl_name = "tranceiver_ctrl";
		trans = USB_TRANSCEIVER_CTRL_REG;
		seq_printf(s, "\nOTG rev %d.%d, transceiver_ctrl %05x\n",
		tmp >> 4, tmp & 0xf, trans);
		}
		seq_printf(s, "\nOTG rev %d.%d, %s %05x\n",
		tmp >> 4, tmp & 0xf, ctrl_name, trans);
		tmp = OTG_SYSCON_1_REG;
		seq_printf(s, "otg_syscon1 %08x usb2 %s, usb1 %s, usb0 %s,"
		FOURBITS "\n", tmp,
		@@ -2315,11 +2383,16 @@ static int proc_udc_show(struct seq_file s, void _)
		fifo_mode,
		udc->driver ? udc->driver->driver.name : "(none)",
		HMC,
		udc->transceiver ? udc->transceiver->label : "(none)");
		udc->transceiver
		? udc->transceiver->label
		: ((cpu_is_omap1710() \|\| cpu_is_omap24xx())
		? "external" : "(none)"));
		if (cpu_class_is_omap1()) {
		seq_printf(s, "ULPD control %04x req %04x status %04x\n",
		__REG16(ULPD_CLOCK_CTRL),
		__REG16(ULPD_SOFT_REQ),
		__REG16(ULPD_STATUS_REQ));
		}

		/* OTG controller registers */
		if (!cpu_is_omap15xx())
		@@ -2504,9 +2577,10 @@ omap_ep_setup(char *name, u8 addr, u8 type,
		dbuf = 1;
		} else {
		/* double-buffering "not supported" on 15xx,
		* and ignored for PIO-IN on 16xx
		* and ignored for PIO-IN on newer chips
		* (for more reliable behavior)
		*/
		if (!use_dma \|\| cpu_is_omap15xx())
		if (!use_dma \|\| cpu_is_omap15xx() \|\| cpu_is_omap24xx())
		dbuf = 0;

		switch (maxp) {
		@@ -2709,6 +2783,8 @@ static int __init omap_udc_probe(struct platform_device *pdev)
		struct otg_transceiver *xceiv = NULL;
		const char *type = NULL;
		struct omap_usb_config *config = pdev->dev.platform_data;
		struct clk *dc_clk;
		struct clk *hhc_clk;

		/* NOTE: "knows" the order of the resources! */
		if (!request_mem_region(pdev->resource[0].start,
		@@ -2718,6 +2794,26 @@ static int __init omap_udc_probe(struct platform_device *pdev)
		return -EBUSY;
		}

		if (cpu_is_omap16xx()) {
		dc_clk = clk_get(&pdev->dev, "usb_dc_ck");
		hhc_clk = clk_get(&pdev->dev, "usb_hhc_ck");
		BUG_ON(IS_ERR(dc_clk) \|\| IS_ERR(hhc_clk));
		/* can't use omap_udc_enable_clock yet */
		clk_enable(dc_clk);
		clk_enable(hhc_clk);
		udelay(100);
		}

		if (cpu_is_omap24xx()) {
		dc_clk = clk_get(&pdev->dev, "usb_fck");
		hhc_clk = clk_get(&pdev->dev, "usb_l4_ick");
		BUG_ON(IS_ERR(dc_clk) \|\| IS_ERR(hhc_clk));
		/* can't use omap_udc_enable_clock yet */
		clk_enable(dc_clk);
		clk_enable(hhc_clk);
		udelay(100);
		}

		INFO("OMAP UDC rev %d.%d%s\n",
		UDC_REV_REG >> 4, UDC_REV_REG & 0xf,
		config->otg ? ", Mini-AB" : "");
		@@ -2727,7 +2823,7 @@ static int __init omap_udc_probe(struct platform_device *pdev)
		hmc = HMC_1510;
		type = "(unknown)";

		if (machine_is_omap_innovator()) {
		if (machine_is_omap_innovator() \|\| machine_is_sx1()) {
		/* just set up software VBUS detect, and then
		* later rig it so we always report VBUS.
		* FIXME without really sensing VBUS, we can't
		@@ -2756,6 +2852,15 @@ static int __init omap_udc_probe(struct platform_device *pdev)
		}

		hmc = HMC_1610;

		if (cpu_is_omap24xx()) {
		/* this could be transceiverless in one of the
		* "we don't need to know" modes.
		*/
		type = "external";
		goto known;
		}

		switch (hmc) {
		case 0: /* POWERUP DEFAULT == 0 */
		case 4:
		@@ -2794,6 +2899,7 @@ static int __init omap_udc_probe(struct platform_device *pdev)
		goto cleanup0;
		}
		}
		known:
		INFO("hmc mode %d, %s transceiver\n", hmc, type);

		/* a "gadget" abstracts/virtualizes the controller */
		@@ -2818,8 +2924,8 @@ static int __init omap_udc_probe(struct platform_device *pdev)
		status = request_irq(pdev->resource[1].start, omap_udc_irq,
		IRQF_SAMPLE_RANDOM, driver_name, udc);
		if (status != 0) {
		ERR( "can't get irq %ld, err %d\n",
		pdev->resource[1].start, status);
		ERR("can't get irq %d, err %d\n",
		(int) pdev->resource[1].start, status);
		goto cleanup1;
		}

		@@ -2827,24 +2933,41 @@ static int __init omap_udc_probe(struct platform_device *pdev)
		status = request_irq(pdev->resource[2].start, omap_udc_pio_irq,
		IRQF_SAMPLE_RANDOM, "omap_udc pio", udc);
		if (status != 0) {
		ERR( "can't get irq %ld, err %d\n",
		pdev->resource[2].start, status);
		ERR("can't get irq %d, err %d\n",
		(int) pdev->resource[2].start, status);
		goto cleanup2;
		}
		#ifdef USE_ISO
		status = request_irq(pdev->resource[3].start, omap_udc_iso_irq,
		IRQF_DISABLED, "omap_udc iso", udc);
		if (status != 0) {
		ERR("can't get irq %ld, err %d\n",
		pdev->resource[3].start, status);
		ERR("can't get irq %d, err %d\n",
		(int) pdev->resource[3].start, status);
		goto cleanup3;
		}
		#endif
		if (cpu_is_omap16xx()) {
		udc->dc_clk = dc_clk;
		udc->hhc_clk = hhc_clk;
		clk_disable(hhc_clk);
		clk_disable(dc_clk);
		}

		if (cpu_is_omap24xx()) {
		udc->dc_clk = dc_clk;
		udc->hhc_clk = hhc_clk;
		/* FIXME OMAP2 don't release hhc & dc clock */
		#if 0
		clk_disable(hhc_clk);
		clk_disable(dc_clk);
		#endif
		}

		create_proc_file();
		device_add(&udc->gadget.dev);
		return 0;

		status = device_add(&udc->gadget.dev);
		if (!status)
		return status;
		/* If fail, fall through */
		#ifdef USE_ISO
		cleanup3:
		free_irq(pdev->resource[2].start, udc);
		@@ -2860,8 +2983,17 @@ static int __init omap_udc_probe(struct platform_device *pdev)
		cleanup0:
		if (xceiv)
		put_device(xceiv->dev);

		if (cpu_is_omap16xx() \|\| cpu_is_omap24xx()) {
		clk_disable(hhc_clk);
		clk_disable(dc_clk);
		clk_put(hhc_clk);
		clk_put(dc_clk);
		}

		release_mem_region(pdev->resource[0].start,
		pdev->resource[0].end - pdev->resource[0].start + 1);

		return status;
		}

		@@ -2891,6 +3023,13 @@ static int __exit omap_udc_remove(struct platform_device *pdev)
		free_irq(pdev->resource[2].start, udc);
		free_irq(pdev->resource[1].start, udc);

		if (udc->dc_clk) {
		if (udc->clk_requested)
		omap_udc_enable_clock(0);
		clk_put(udc->hhc_clk);
		clk_put(udc->dc_clk);
		}

		release_mem_region(pdev->resource[0].start,
		pdev->resource[0].end - pdev->resource[0].start + 1);

drivers/usb/gadget/omap_udc.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -175,6 +175,9 @@ struct omap_udc {
		unsigned ep0_reset_config:1;
		unsigned ep0_setup:1;
		struct completion *done;
		struct clk *dc_clk;
		struct clk *hhc_clk;
		unsigned clk_requested:1;
		};

		/-------------------------------------------------------------------------/