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usb: musb: drop a gigantic amount of ifdeferry

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the MUSB IP is always OTG, so there's no point
in adding so many ifdefs on the code. Drop those
and always compile the driver for OTG support.

This also allows us to drop the useless "driver
mode" choice. For doing that, we need to make
musb depend on both Host and Peripheral side.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Felipe Balbi 2011-06-22 17:28:09 +03:00 committed by Greg Kroah-Hartman
parent e4e5b136eb
commit 622859634a
14 changed files with 10 additions and 305 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

75
drivers/usb/musb/Kconfig
View File

@ -8,7 +8,7 @@ comment "Enable Host or Gadget support to see Inventra options"
# (M)HDRC = (Multipoint) Highspeed Dual-Role Controller
config USB_MUSB_HDRC
depends on (USB || USB_GADGET)
depends on USB && USB_GADGET
depends on (ARM || (BF54x && !BF544) || (BF52x && !BF522 && !BF523))
select NOP_USB_XCEIV if (ARCH_DAVINCI || MACH_OMAP3EVM || BLACKFIN)
select TWL4030_USB if MACH_OMAP_3430SDP
@ -67,79 +67,6 @@ config USB_MUSB_UX500
endchoice
choice
prompt "Driver Mode"
depends on USB_MUSB_HDRC
help
Dual-Role devices can support both host and peripheral roles,
as well as a the special "OTG Device" role which can switch
between both roles as needed.
# use USB_MUSB_HDRC_HCD not USB_MUSB_HOST to #ifdef host side support;
# OTG needs both roles, not just USB_MUSB_HOST.
config USB_MUSB_HOST
depends on USB
bool "USB Host"
help
Say Y here if your system supports the USB host role.
If it has a USB "A" (rectangular), "Mini-A" (uncommon),
or "Mini-AB" connector, it supports the host role.
(With a "Mini-AB" connector, you should enable USB OTG.)
# use USB_GADGET_MUSB_HDRC not USB_MUSB_PERIPHERAL to #ifdef peripheral
# side support ... OTG needs both roles
config USB_MUSB_PERIPHERAL
depends on USB_GADGET
bool "USB Peripheral (gadget stack)"
select USB_GADGET_MUSB_HDRC
help
Say Y here if your system supports the USB peripheral role.
If it has a USB "B" (squarish), "Mini-B", or "Mini-AB"
connector, it supports the peripheral role.
(With a "Mini-AB" connector, you should enable USB OTG.)
config USB_MUSB_OTG
depends on USB && USB_GADGET && PM && EXPERIMENTAL
bool "Both host and peripheral: USB OTG (On The Go) Device"
select USB_GADGET_MUSB_HDRC
select USB_OTG
help
The most notable feature of USB OTG is support for a
"Dual-Role" device, which can act as either a device
or a host. The initial role choice can be changed
later, when two dual-role devices talk to each other.
At this writing, the OTG support in this driver is incomplete,
omitting the mandatory HNP or SRP protocols. However, some
of the cable based role switching works. (That is, grounding
the ID pin switches the controller to host mode, while leaving
it floating leaves it in peripheral mode.)
Select this if your system has a Mini-AB connector, or
to simplify certain kinds of configuration.
To implement your OTG Targeted Peripherals List (TPL), enable
USB_OTG_WHITELIST and update "drivers/usb/core/otg_whitelist.h"
to match your requirements.
endchoice
# enable peripheral support (including with OTG)
config USB_GADGET_MUSB_HDRC
bool
depends on USB_MUSB_HDRC && (USB_MUSB_PERIPHERAL || USB_MUSB_OTG)
# default y
# select USB_GADGET_DUALSPEED
# select USB_GADGET_SELECTED
# enables host support (including with OTG)
config USB_MUSB_HDRC_HCD
bool
depends on USB_MUSB_HDRC && (USB_MUSB_HOST || USB_MUSB_OTG)
select USB_OTG if USB_GADGET_MUSB_HDRC
default y
config MUSB_PIO_ONLY
bool 'Disable DMA (always use PIO)'
depends on USB_MUSB_HDRC

4
drivers/usb/musb/Makefile
View File

@ -6,8 +6,8 @@ obj-$(CONFIG_USB_MUSB_HDRC) += musb_hdrc.o
musb_hdrc-y := musb_core.o
musb_hdrc-$(CONFIG_USB_GADGET_MUSB_HDRC) += musb_gadget_ep0.o musb_gadget.o
musb_hdrc-$(CONFIG_USB_MUSB_HDRC_HCD) += musb_virthub.o musb_host.o
musb_hdrc-y += musb_gadget_ep0.o musb_gadget.o
musb_hdrc-y += musb_virthub.o musb_host.o
musb_hdrc-$(CONFIG_DEBUG_FS) += musb_debugfs.o
# Hardware Glue Layer

4
drivers/usb/musb/am35x.c
View File

@ -124,11 +124,7 @@ static void am35x_musb_disable(struct musb *musb)
musb_writel(reg_base, USB_END_OF_INTR_REG, 0);
}
#ifdef CONFIG_USB_MUSB_HDRC_HCD
#define portstate(stmt) stmt
#else
#define portstate(stmt)
#endif
static void am35x_musb_set_vbus(struct musb *musb, int is_on)
{

2
drivers/usb/musb/blackfin.h
View File

@ -47,7 +47,7 @@
* So, need to either use silicon v0.2+ or disable DMA mode in MUSB.
*/
#if ANOMALY_05000380 && defined(CONFIG_BF52x) && \
defined(CONFIG_USB_MUSB_HDRC) && !defined(CONFIG_MUSB_PIO_ONLY)
!defined(CONFIG_MUSB_PIO_ONLY)
# error "Please use PIO mode in MUSB driver on bf52x chip v0.0 and v0.1"
#endif

12
drivers/usb/musb/da8xx.c
View File

@ -172,11 +172,7 @@ static void da8xx_musb_disable(struct musb *musb)
musb_writel(reg_base, DA8XX_USB_END_OF_INTR_REG, 0);
}
#ifdef CONFIG_USB_MUSB_HDRC_HCD
#define portstate(stmt) stmt
#else
#define portstate(stmt)
#endif
#define portstate(stmt) stmt
static void da8xx_musb_set_vbus(struct musb *musb, int is_on)
{
@ -397,21 +393,15 @@ static int da8xx_musb_set_mode(struct musb *musb, u8 musb_mode)
cfgchip2 &= ~CFGCHIP2_OTGMODE;
switch (musb_mode) {
#ifdef CONFIG_USB_MUSB_HDRC_HCD
case MUSB_HOST: /* Force VBUS valid, ID = 0 */
cfgchip2 |= CFGCHIP2_FORCE_HOST;
break;
#endif
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
case MUSB_PERIPHERAL: /* Force VBUS valid, ID = 1 */
cfgchip2 |= CFGCHIP2_FORCE_DEVICE;
break;
#endif
#ifdef CONFIG_USB_MUSB_OTG
case MUSB_OTG: /* Don't override the VBUS/ID comparators */
cfgchip2 |= CFGCHIP2_NO_OVERRIDE;
break;
#endif
default:
dev_dbg(musb->controller, "Trying to set unsupported mode %u\n", musb_mode);
}

5
drivers/usb/musb/davinci.c
View File

@ -143,12 +143,7 @@ static void davinci_musb_disable(struct musb *musb)
}
#ifdef CONFIG_USB_MUSB_HDRC_HCD
#define portstate(stmt) stmt
#else
#define portstate(stmt)
#endif
/*
* VBUS SWITCHING IS BOARD-SPECIFIC ... at least for the DM6446 EVM,

86
drivers/usb/musb/musb_core.c
View File

@ -328,8 +328,6 @@ void musb_load_testpacket(struct musb *musb)
/*-------------------------------------------------------------------------*/
#ifdef CONFIG_USB_MUSB_OTG
/*
* Handles OTG hnp timeouts, such as b_ase0_brst
*/
@ -401,8 +399,6 @@ void musb_hnp_stop(struct musb *musb)
musb->port1_status &= ~(USB_PORT_STAT_C_CONNECTION << 16);
}
#endif
/*
* Interrupt Service Routine to record USB "global" interrupts.
* Since these do not happen often and signify things of
@ -432,7 +428,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
dev_dbg(musb->controller, "RESUME (%s)\n", otg_state_string(musb->xceiv->state));
if (devctl & MUSB_DEVCTL_HM) {
#ifdef CONFIG_USB_MUSB_HDRC_HCD
void __iomem *mbase = musb->mregs;
switch (musb->xceiv->state) {
@ -472,17 +467,13 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
"host",
otg_state_string(musb->xceiv->state));
}
#endif
} else {
switch (musb->xceiv->state) {
#ifdef CONFIG_USB_MUSB_HDRC_HCD
case OTG_STATE_A_SUSPEND:
/* possibly DISCONNECT is upcoming */
musb->xceiv->state = OTG_STATE_A_HOST;
usb_hcd_resume_root_hub(musb_to_hcd(musb));
break;
#endif
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
case OTG_STATE_B_WAIT_ACON:
case OTG_STATE_B_PERIPHERAL:
/* disconnect while suspended? we may
@ -500,7 +491,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
case OTG_STATE_B_IDLE:
musb->int_usb &= ~MUSB_INTR_SUSPEND;
break;
#endif
default:
WARNING("bogus %s RESUME (%s)\n",
"peripheral",
@ -509,7 +499,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
}
}
#ifdef CONFIG_USB_MUSB_HDRC_HCD
/* see manual for the order of the tests */
if (int_usb & MUSB_INTR_SESSREQ) {
void __iomem *mbase = musb->mregs;
@ -609,14 +598,12 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
handled = IRQ_HANDLED;
}
#endif
if (int_usb & MUSB_INTR_SUSPEND) {
dev_dbg(musb->controller, "SUSPEND (%s) devctl %02x power %02x\n",
otg_state_string(musb->xceiv->state), devctl, power);
handled = IRQ_HANDLED;
switch (musb->xceiv->state) {
#ifdef CONFIG_USB_MUSB_OTG
case OTG_STATE_A_PERIPHERAL:
/* We also come here if the cable is removed, since
* this silicon doesn't report ID-no-longer-grounded.
@ -633,7 +620,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
? : OTG_TIME_A_WAIT_BCON));
break;
#endif
case OTG_STATE_B_IDLE:
if (!musb->is_active)
break;
@ -642,13 +628,11 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
musb->is_active = is_otg_enabled(musb)
&& musb->xceiv->gadget->b_hnp_enable;
if (musb->is_active) {
#ifdef CONFIG_USB_MUSB_OTG
musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
dev_dbg(musb->controller, "HNP: Setting timer for b_ase0_brst\n");
mod_timer(&musb->otg_timer, jiffies
+ msecs_to_jiffies(
OTG_TIME_B_ASE0_BRST));
#endif
}
break;
case OTG_STATE_A_WAIT_BCON:
@ -672,7 +656,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
}
}
#ifdef CONFIG_USB_MUSB_HDRC_HCD
if (int_usb & MUSB_INTR_CONNECT) {
struct usb_hcd *hcd = musb_to_hcd(musb);
@ -682,7 +665,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
musb->ep0_stage = MUSB_EP0_START;
#ifdef CONFIG_USB_MUSB_OTG
/* flush endpoints when transitioning from Device Mode */
if (is_peripheral_active(musb)) {
/* REVISIT HNP; just force disconnect */
@ -690,7 +672,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
musb_writew(musb->mregs, MUSB_INTRTXE, musb->epmask);
musb_writew(musb->mregs, MUSB_INTRRXE, musb->epmask & 0xfffe);
musb_writeb(musb->mregs, MUSB_INTRUSBE, 0xf7);
#endif
musb->port1_status &= ~(USB_PORT_STAT_LOW_SPEED
|USB_PORT_STAT_HIGH_SPEED
|USB_PORT_STAT_ENABLE
@ -739,7 +720,6 @@ b_host:
dev_dbg(musb->controller, "CONNECT (%s) devctl %02x\n",
otg_state_string(musb->xceiv->state), devctl);
}
#endif /* CONFIG_USB_MUSB_HDRC_HCD */
if ((int_usb & MUSB_INTR_DISCONNECT) && !musb->ignore_disconnect) {
dev_dbg(musb->controller, "DISCONNECT (%s) as %s, devctl %02x\n",
@ -748,7 +728,6 @@ b_host:
handled = IRQ_HANDLED;
switch (musb->xceiv->state) {
#ifdef CONFIG_USB_MUSB_HDRC_HCD
case OTG_STATE_A_HOST:
case OTG_STATE_A_SUSPEND:
usb_hcd_resume_root_hub(musb_to_hcd(musb));
@ -757,8 +736,6 @@ b_host:
musb_platform_try_idle(musb, jiffies
+ msecs_to_jiffies(musb->a_wait_bcon));
break;
#endif /* HOST */
#ifdef CONFIG_USB_MUSB_OTG
case OTG_STATE_B_HOST:
/* REVISIT this behaves for "real disconnect"
* cases; make sure the other transitions from
@ -777,13 +754,10 @@ b_host:
/* FALLTHROUGH */
case OTG_STATE_B_WAIT_ACON:
/* FALLTHROUGH */
#endif /* OTG */
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
case OTG_STATE_B_PERIPHERAL:
case OTG_STATE_B_IDLE:
musb_g_disconnect(musb);
break;
#endif /* GADGET */
default:
WARNING("unhandled DISCONNECT transition (%s)\n",
otg_state_string(musb->xceiv->state));
@ -814,7 +788,6 @@ b_host:
dev_dbg(musb->controller, "BUS RESET as %s\n",
otg_state_string(musb->xceiv->state));
switch (musb->xceiv->state) {
#ifdef CONFIG_USB_OTG
case OTG_STATE_A_SUSPEND:
/* We need to ignore disconnect on suspend
* otherwise tusb 2.0 won't reconnect after a
@ -842,7 +815,6 @@ b_host:
musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
musb_g_reset(musb);
break;
#endif
case OTG_STATE_B_IDLE:
musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
/* FALLTHROUGH */
@ -1191,14 +1163,12 @@ fifo_setup(struct musb *musb, struct musb_hw_ep *hw_ep,
/* configure the FIFO */
musb_writeb(mbase, MUSB_INDEX, hw_ep->epnum);
#ifdef CONFIG_USB_MUSB_HDRC_HCD
/* EP0 reserved endpoint for control, bidirectional;
* EP1 reserved for bulk, two unidirection halves.
*/
if (hw_ep->epnum == 1)
musb->bulk_ep = hw_ep;
/* REVISIT error check: be sure ep0 can both rx and tx ... */
#endif
switch (cfg->style) {
case FIFO_TX:
musb_write_txfifosz(mbase, c_size);
@ -1317,12 +1287,10 @@ done:
n + 1, musb->config->num_eps * 2 - 1,
offset, (1 << (musb->config->ram_bits + 2)));
#ifdef CONFIG_USB_MUSB_HDRC_HCD
if (!musb->bulk_ep) {
pr_debug("%s: missing bulk\n", musb_driver_name);
return -EINVAL;
}
#endif
return 0;
}
@ -1353,7 +1321,6 @@ static int __init ep_config_from_hw(struct musb *musb)
/* FIXME set up hw_ep->{rx,tx}_double_buffered */
#ifdef CONFIG_USB_MUSB_HDRC_HCD
/* pick an RX/TX endpoint for bulk */
if (hw_ep->max_packet_sz_tx < 512
|| hw_ep->max_packet_sz_rx < 512)
@ -1365,15 +1332,12 @@ static int __init ep_config_from_hw(struct musb *musb)
if (musb->bulk_ep)
continue;
musb->bulk_ep = hw_ep;
#endif
}
#ifdef CONFIG_USB_MUSB_HDRC_HCD
if (!musb->bulk_ep) {
pr_debug("%s: missing bulk\n", musb_driver_name);
return -EINVAL;
}
#endif
return 0;
}
@ -1429,12 +1393,10 @@ static int __init musb_core_init(u16 musb_type, struct musb *musb)
} else {
musb->is_multipoint = 0;
type = "";
#ifdef CONFIG_USB_MUSB_HDRC_HCD
#ifndef CONFIG_USB_OTG_BLACKLIST_HUB
printk(KERN_ERR
"%s: kernel must blacklist external hubs\n",
musb_driver_name);
#endif
#endif
}
@ -1479,11 +1441,9 @@ static int __init musb_core_init(u16 musb_type, struct musb *musb)
#endif
hw_ep->regs = MUSB_EP_OFFSET(i, 0) + mbase;
#ifdef CONFIG_USB_MUSB_HDRC_HCD
hw_ep->target_regs = musb_read_target_reg_base(i, mbase);
hw_ep->rx_reinit = 1;
hw_ep->tx_reinit = 1;
#endif
if (hw_ep->max_packet_sz_tx) {
dev_dbg(musb->controller,
@ -1561,13 +1521,11 @@ irqreturn_t musb_interrupt(struct musb *musb)
(devctl & MUSB_DEVCTL_HM) ? "host" : "peripheral",
musb->int_usb, musb->int_tx, musb->int_rx);
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (is_otg_enabled(musb) || is_peripheral_enabled(musb))
if (!musb->gadget_driver) {
dev_dbg(musb->controller, "No gadget driver loaded\n");
return IRQ_HANDLED;
}
#endif
/* the core can interrupt us for multiple reasons; docs have
* a generic interrupt flowchart to follow
@ -1767,8 +1725,6 @@ musb_vbus_show(struct device *dev, struct device_attribute *attr, char *buf)
}
static DEVICE_ATTR(vbus, 0644, musb_vbus_show, musb_vbus_store);
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
/* Gadget drivers can't know that a host is connected so they might want
* to start SRP, but users can. This allows userspace to trigger SRP.
*/
@ -1792,14 +1748,10 @@ musb_srp_store(struct device *dev, struct device_attribute *attr,
}
static DEVICE_ATTR(srp, 0644, NULL, musb_srp_store);
#endif /* CONFIG_USB_GADGET_MUSB_HDRC */
static struct attribute *musb_attributes[] = {
&dev_attr_mode.attr,
&dev_attr_vbus.attr,
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
&dev_attr_srp.attr,
#endif
NULL
};
@ -1832,7 +1784,6 @@ allocate_instance(struct device *dev,
struct musb *musb;
struct musb_hw_ep *ep;
int epnum;
#ifdef CONFIG_USB_MUSB_HDRC_HCD
struct usb_hcd *hcd;
hcd = usb_create_hcd(&musb_hc_driver, dev, dev_name(dev));
@ -1850,12 +1801,6 @@ allocate_instance(struct device *dev,
musb->vbuserr_retry = VBUSERR_RETRY_COUNT;
musb->a_wait_bcon = OTG_TIME_A_WAIT_BCON;
#else
musb = kzalloc(sizeof *musb, GFP_KERNEL);
if (!musb)
return NULL;
#endif
dev_set_drvdata(dev, musb);
musb->mregs = mbase;
musb->ctrl_base = mbase;
@ -1885,9 +1830,7 @@ static void musb_free(struct musb *musb)
sysfs_remove_group(&musb->controller->kobj, &musb_attr_group);
#endif
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
musb_gadget_cleanup(musb);
#endif
if (musb->nIrq >= 0) {
if (musb->irq_wake)
@ -1901,11 +1844,7 @@ static void musb_free(struct musb *musb)
dma_controller_destroy(c);
}
#ifdef CONFIG_USB_MUSB_HDRC_HCD
usb_put_hcd(musb_to_hcd(musb));
#else
kfree(musb);
#endif
}
/*
@ -2000,9 +1939,7 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
if (status < 0)
goto fail3;
#ifdef CONFIG_USB_MUSB_OTG
setup_timer(&musb->otg_timer, musb_otg_timer_func, (unsigned long) musb);
#endif
/* Init IRQ workqueue before request_irq */
INIT_WORK(&musb->irq_work, musb_irq_work);
@ -2444,34 +2381,13 @@ static struct platform_driver musb_driver = {
static int __init musb_init(void)
{
#ifdef CONFIG_USB_MUSB_HDRC_HCD
if (usb_disabled())
return 0;
#endif
pr_info("%s: version " MUSB_VERSION ", "
#ifdef CONFIG_MUSB_PIO_ONLY
"pio"
#elif defined(CONFIG_USB_TI_CPPI_DMA)
"cppi-dma"
#elif defined(CONFIG_USB_INVENTRA_DMA)
"musb-dma"
#elif defined(CONFIG_USB_TUSB_OMAP_DMA)
"tusb-omap-dma"
#elif defined(CONFIG_USB_UX500_DMA)
"ux500-dma"
#else
"?dma?"
#endif
", "
#ifdef CONFIG_USB_MUSB_OTG
"otg (peripheral+host)"
#elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
"peripheral"
#elif defined(CONFIG_USB_MUSB_HDRC_HCD)
"host"
#endif
,
"otg (peripheral+host)",
musb_driver_name);
return platform_driver_probe(&musb_driver, musb_probe);
}

68
drivers/usb/musb/musb_core.h
View File

@ -72,10 +72,6 @@ struct musb_ep;
#include <linux/usb/hcd.h>
#include "musb_host.h"
#ifdef CONFIG_USB_MUSB_OTG
#define is_peripheral_enabled(musb) ((musb)->board_mode != MUSB_HOST)
#define is_host_enabled(musb) ((musb)->board_mode != MUSB_PERIPHERAL)
#define is_otg_enabled(musb) ((musb)->board_mode == MUSB_OTG)
@ -86,24 +82,6 @@ struct musb_ep;
#define is_peripheral_active(m) (!(m)->is_host)
#define is_host_active(m) ((m)->is_host)
#else
#define is_peripheral_enabled(musb) is_peripheral_capable()
#define is_host_enabled(musb) is_host_capable()
#define is_otg_enabled(musb) 0
#define is_peripheral_active(musb) is_peripheral_capable()
#define is_host_active(musb) is_host_capable()
#endif
#if defined(CONFIG_USB_MUSB_OTG) || defined(CONFIG_USB_MUSB_PERIPHERAL)
/* for some reason, the "select USB_GADGET_MUSB_HDRC" doesn't always
* override that choice selection (often USB_GADGET_DUMMY_HCD).
*/
#ifndef CONFIG_USB_GADGET_MUSB_HDRC
#error bogus Kconfig output ... select CONFIG_USB_GADGET_MUSB_HDRC
#endif
#endif /* need MUSB gadget selection */
#ifndef CONFIG_HAVE_CLK
/* Dummy stub for clk framework */
#define clk_get(dev, id) NULL
@ -119,8 +97,6 @@ struct musb_ep;
/****************************** PERIPHERAL ROLE *****************************/
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
#define is_peripheral_capable() (1)
extern irqreturn_t musb_g_ep0_irq(struct musb *);
@ -132,40 +108,14 @@ extern void musb_g_resume(struct musb *);
extern void musb_g_wakeup(struct musb *);
extern void musb_g_disconnect(struct musb *);
#else
#define is_peripheral_capable() (0)
static inline irqreturn_t musb_g_ep0_irq(struct musb *m) { return IRQ_NONE; }
static inline void musb_g_reset(struct musb *m) {}
static inline void musb_g_suspend(struct musb *m) {}
static inline void musb_g_resume(struct musb *m) {}
static inline void musb_g_wakeup(struct musb *m) {}
static inline void musb_g_disconnect(struct musb *m) {}
#endif
/****************************** HOST ROLE ***********************************/
#ifdef CONFIG_USB_MUSB_HDRC_HCD
#define is_host_capable() (1)
extern irqreturn_t musb_h_ep0_irq(struct musb *);
extern void musb_host_tx(struct musb *, u8);
extern void musb_host_rx(struct musb *, u8);
#else
#define is_host_capable() (0)
static inline irqreturn_t musb_h_ep0_irq(struct musb *m) { return IRQ_NONE; }
static inline void musb_host_tx(struct musb *m, u8 e) {}
static inline void musb_host_rx(struct musb *m, u8 e) {}
#endif
/****************************** CONSTANTS ********************************/
#ifndef MUSB_C_NUM_EPS
@ -315,7 +265,6 @@ struct musb_hw_ep {
void __iomem *fifo_sync_va;
#endif
#ifdef CONFIG_USB_MUSB_HDRC_HCD
void __iomem *target_regs;
/* currently scheduled peripheral endpoint */
@ -324,31 +273,20 @@ struct musb_hw_ep {
u8 rx_reinit;
u8 tx_reinit;
#endif
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
/* peripheral side */
struct musb_ep ep_in; /* TX */
struct musb_ep ep_out; /* RX */
#endif
};
static inline struct musb_request *next_in_request(struct musb_hw_ep *hw_ep)
{
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
return next_request(&hw_ep->ep_in);
#else
return NULL;
#endif
}
static inline struct musb_request *next_out_request(struct musb_hw_ep *hw_ep)
{
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
return next_request(&hw_ep->ep_out);
#else
return NULL;
#endif
}
struct musb_csr_regs {
@ -393,7 +331,6 @@ struct musb {
u32 port1_status;
#ifdef CONFIG_USB_MUSB_HDRC_HCD
unsigned long rh_timer;
enum musb_h_ep0_state ep0_stage;
@ -411,7 +348,6 @@ struct musb {
struct list_head out_bulk; /* of musb_qh */
struct timer_list otg_timer;
#endif
struct notifier_block nb;
struct dma_controller *dma_controller;
@ -472,7 +408,6 @@ struct musb {
#define can_bulk_combine(musb,type) \
(((type) == USB_ENDPOINT_XFER_BULK) && (musb)->bulk_combine)
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
/* is_suspended means USB B_PERIPHERAL suspend */
unsigned is_suspended:1;
@ -496,7 +431,6 @@ struct musb {
enum musb_g_ep0_state ep0_state;
struct usb_gadget g; /* the gadget */
struct usb_gadget_driver *gadget_driver; /* its driver */
#endif
/*
* FIXME: Remove this flag.
@ -518,12 +452,10 @@ struct musb {
#endif
};
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
static inline struct musb *gadget_to_musb(struct usb_gadget *g)
{
return container_of(g, struct musb, g);
}
#endif
#ifdef CONFIG_BLACKFIN
static inline int musb_read_fifosize(struct musb *musb,

4
drivers/usb/musb/musb_gadget.c
View File

@ -2048,9 +2048,7 @@ static int musb_gadget_stop(struct usb_gadget_driver *driver)
spin_lock_irqsave(&musb->lock, flags);
#ifdef CONFIG_USB_MUSB_OTG
musb_hnp_stop(musb);
#endif
(void) musb_gadget_vbus_draw(&musb->g, 0);
@ -2171,7 +2169,6 @@ void musb_g_disconnect(struct musb *musb)
switch (musb->xceiv->state) {
default:
#ifdef CONFIG_USB_MUSB_OTG
dev_dbg(musb->controller, "Unhandled disconnect %s, setting a_idle\n",
otg_state_string(musb->xceiv->state));
musb->xceiv->state = OTG_STATE_A_IDLE;
@ -2183,7 +2180,6 @@ void musb_g_disconnect(struct musb *musb)
break;
case OTG_STATE_B_WAIT_ACON:
case OTG_STATE_B_HOST:
#endif
case OTG_STATE_B_PERIPHERAL:
case OTG_STATE_B_IDLE:
musb->xceiv->state = OTG_STATE_B_IDLE;

4
drivers/usb/musb/musb_gadget_ep0.c
View File

@ -88,7 +88,6 @@ static int service_tx_status_request(
case USB_RECIP_DEVICE:
result[0] = musb->is_self_powered << USB_DEVICE_SELF_POWERED;
result[0] |= musb->may_wakeup << USB_DEVICE_REMOTE_WAKEUP;
#ifdef CONFIG_USB_MUSB_OTG
if (musb->g.is_otg) {
result[0] |= musb->g.b_hnp_enable
<< USB_DEVICE_B_HNP_ENABLE;
@ -97,7 +96,6 @@ static int service_tx_status_request(
result[0] |= musb->g.a_hnp_support
<< USB_DEVICE_A_HNP_SUPPORT;
}
#endif
break;
case USB_RECIP_INTERFACE:
@ -392,7 +390,6 @@ __acquires(musb->lock)
if (handled > 0)
musb->test_mode = true;
break;
#ifdef CONFIG_USB_MUSB_OTG
case USB_DEVICE_B_HNP_ENABLE:
if (!musb->g.is_otg)
goto stall;
@ -409,7 +406,6 @@ __acquires(musb->lock)
goto stall;
musb->g.a_alt_hnp_support = 1;
break;
#endif
case USB_DEVICE_DEBUG_MODE:
handled = 0;
break;

4
drivers/usb/musb/musb_host.h
View File

@ -95,7 +95,6 @@ extern const struct hc_driver musb_hc_driver;
static inline struct urb *next_urb(struct musb_qh *qh)
{
#ifdef CONFIG_USB_MUSB_HDRC_HCD
struct list_head *queue;
if (!qh)
@ -104,9 +103,6 @@ static inline struct urb *next_urb(struct musb_qh *qh)
if (list_empty(queue))
return NULL;
return list_entry(queue->next, struct urb, urb_list);
#else
return NULL;
#endif
}
#endif /* _MUSB_HOST_H */

6
drivers/usb/musb/musb_virthub.c
View File

@ -88,14 +88,12 @@ static void musb_port_suspend(struct musb *musb, bool do_suspend)
OTG_TIME_A_AIDL_BDIS));
musb_platform_try_idle(musb, 0);
break;
#ifdef CONFIG_USB_MUSB_OTG
case OTG_STATE_B_HOST:
musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
musb->is_active = is_otg_enabled(musb)
&& musb->xceiv->host->b_hnp_enable;
musb_platform_try_idle(musb, 0);
break;
#endif
default:
dev_dbg(musb->controller, "bogus rh suspend? %s\n",
otg_state_string(musb->xceiv->state));
@ -118,13 +116,11 @@ static void musb_port_reset(struct musb *musb, bool do_reset)
u8 power;
void __iomem *mbase = musb->mregs;
#ifdef CONFIG_USB_MUSB_OTG
if (musb->xceiv->state == OTG_STATE_B_IDLE) {
dev_dbg(musb->controller, "HNP: Returning from HNP; no hub reset from b_idle\n");
musb->port1_status &= ~USB_PORT_STAT_RESET;
return;
}
#endif
if (!is_host_active(musb))
return;
@ -191,14 +187,12 @@ void musb_root_disconnect(struct musb *musb)
switch (musb->xceiv->state) {
case OTG_STATE_A_SUSPEND:
#ifdef CONFIG_USB_MUSB_OTG
if (is_otg_enabled(musb)
&& musb->xceiv->host->b_hnp_enable) {
musb->xceiv->state = OTG_STATE_A_PERIPHERAL;
musb->g.is_a_peripheral = 1;
break;
}
#endif
/* FALLTHROUGH */
case OTG_STATE_A_HOST:
musb->xceiv->state = OTG_STATE_A_WAIT_BCON;

15
drivers/usb/musb/omap2430.c
View File

@ -51,9 +51,7 @@ static void musb_do_idle(unsigned long _musb)
{
struct musb *musb = (void *)_musb;
unsigned long flags;
#ifdef CONFIG_USB_MUSB_HDRC_HCD
u8 power;
#endif
u8 devctl;
spin_lock_irqsave(&musb->lock, flags);
@ -70,7 +68,6 @@ static void musb_do_idle(unsigned long _musb)
MUSB_HST_MODE(musb);
}
break;
#ifdef CONFIG_USB_MUSB_HDRC_HCD
case OTG_STATE_A_SUSPEND:
/* finish RESUME signaling? */
if (musb->port1_status & MUSB_PORT_STAT_RESUME) {
@ -87,15 +84,12 @@ static void musb_do_idle(unsigned long _musb)
musb->xceiv->state = OTG_STATE_A_HOST;
}
break;
#endif
#ifdef CONFIG_USB_MUSB_HDRC_HCD
case OTG_STATE_A_HOST:
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
if (devctl & MUSB_DEVCTL_BDEVICE)
musb->xceiv->state = OTG_STATE_B_IDLE;
else
musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
#endif
default:
break;
}
@ -243,13 +237,11 @@ static int musb_otg_notifications(struct notifier_block *nb,
dev_dbg(musb->controller, "ID GND\n");
if (is_otg_enabled(musb)) {
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (musb->gadget_driver) {
pm_runtime_get_sync(musb->controller);
otg_init(musb->xceiv);
omap2430_musb_set_vbus(musb, 1);
}
#endif
} else {
pm_runtime_get_sync(musb->controller);
otg_init(musb->xceiv);
@ -260,21 +252,16 @@ static int musb_otg_notifications(struct notifier_block *nb,
case USB_EVENT_VBUS:
dev_dbg(musb->controller, "VBUS Connect\n");
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (musb->gadget_driver)
pm_runtime_get_sync(musb->controller);
#endif
otg_init(musb->xceiv);
break;
case USB_EVENT_NONE:
dev_dbg(musb->controller, "VBUS Disconnect\n");
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (is_otg_enabled(musb) || is_peripheral_enabled(musb))
if (musb->gadget_driver)
#endif
{
if (musb->gadget_driver) {
pm_runtime_mark_last_busy(musb->controller);
pm_runtime_put_autosuspend(musb->controller);
}

26
drivers/usb/musb/tusb6010.c
View File

@ -269,8 +269,6 @@ void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *buf)
static struct musb *the_musb;
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
/* This is used by gadget drivers, and OTG transceiver logic, allowing
* at most mA current to be drawn from VBUS during a Default-B session
* (that is, while VBUS exceeds 4.4V). In Default-A (including pure host
@ -310,10 +308,6 @@ static int tusb_draw_power(struct otg_transceiver *x, unsigned mA)
return 0;
}
#else
#define tusb_draw_power NULL
#endif
/* workaround for issue 13: change clock during chip idle
* (to be fixed in rev3 silicon) ... symptoms include disconnect
* or looping suspend/resume cycles
@ -440,19 +434,15 @@ static void musb_do_idle(unsigned long _musb)
if (is_host_active(musb) && (musb->port1_status >> 16))
goto done;
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (is_peripheral_enabled(musb) && !musb->gadget_driver)
if (is_peripheral_enabled(musb) && !musb->gadget_driver) {
wakeups = 0;
else {
} else {
wakeups = TUSB_PRCM_WHOSTDISCON
| TUSB_PRCM_WBUS
| TUSB_PRCM_WBUS
| TUSB_PRCM_WVBUS;
if (is_otg_enabled(musb))
wakeups |= TUSB_PRCM_WID;
}
#else
wakeups = TUSB_PRCM_WHOSTDISCON | TUSB_PRCM_WBUS;
#endif
tusb_allow_idle(musb, wakeups);
}
done:
@ -610,30 +600,22 @@ static int tusb_musb_set_mode(struct musb *musb, u8 musb_mode)
switch (musb_mode) {
#ifdef CONFIG_USB_MUSB_HDRC_HCD
case MUSB_HOST: /* Disable PHY ID detect, ground ID */
phy_otg_ctrl &= ~TUSB_PHY_OTG_CTRL_OTG_ID_PULLUP;
phy_otg_ena |= TUSB_PHY_OTG_CTRL_OTG_ID_PULLUP;
dev_conf |= TUSB_DEV_CONF_ID_SEL;
dev_conf &= ~TUSB_DEV_CONF_SOFT_ID;
break;
#endif
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
case MUSB_PERIPHERAL: /* Disable PHY ID detect, keep ID pull-up on */
phy_otg_ctrl |= TUSB_PHY_OTG_CTRL_OTG_ID_PULLUP;
phy_otg_ena |= TUSB_PHY_OTG_CTRL_OTG_ID_PULLUP;
dev_conf |= (TUSB_DEV_CONF_ID_SEL | TUSB_DEV_CONF_SOFT_ID);
break;
#endif
#ifdef CONFIG_USB_MUSB_OTG
case MUSB_OTG: /* Use PHY ID detection */
phy_otg_ctrl |= TUSB_PHY_OTG_CTRL_OTG_ID_PULLUP;
phy_otg_ena |= TUSB_PHY_OTG_CTRL_OTG_ID_PULLUP;
dev_conf &= ~(TUSB_DEV_CONF_ID_SEL | TUSB_DEV_CONF_SOFT_ID);
break;
#endif
default:
dev_dbg(musb->controller, "Trying to set mode %i\n", musb_mode);
@ -684,7 +666,6 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
/* B-dev state machine: no vbus ~= disconnect */
if ((is_otg_enabled(musb) && !musb->xceiv->default_a)
|| !is_host_enabled(musb)) {
#ifdef CONFIG_USB_MUSB_HDRC_HCD
/* ? musb_root_disconnect(musb); */
musb->port1_status &=
~(USB_PORT_STAT_CONNECTION
@ -693,7 +674,6 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
| USB_PORT_STAT_HIGH_SPEED
| USB_PORT_STAT_TEST
);
#endif
if (otg_stat & TUSB_DEV_OTG_STAT_SESS_END) {
dev_dbg(musb->controller, "Forcing disconnect (no interrupt)\n");