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-rw-r--r--drivers/usb/gadget/Kconfig28
-rw-r--r--drivers/usb/gadget/Makefile1
-rw-r--r--drivers/usb/gadget/gadget_chips.h8
-rw-r--r--drivers/usb/gadget/m66592-udc.c286
-rw-r--r--drivers/usb/gadget/m66592-udc.h90
-rw-r--r--drivers/usb/gadget/r8a66597-udc.c1689
-rw-r--r--drivers/usb/gadget/r8a66597-udc.h256
7 files changed, 2176 insertions, 182 deletions
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 7f8e83a954a..9f986b417c5 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -251,6 +251,24 @@ config USB_PXA25X_SMALL
default y if USB_ETH
default y if USB_G_SERIAL
+config USB_GADGET_R8A66597
+ boolean "Renesas R8A66597 USB Peripheral Controller"
+ select USB_GADGET_DUALSPEED
+ help
+ R8A66597 is a discrete USB host and peripheral controller chip that
+ supports both full and high speed USB 2.0 data transfers.
+ It has nine configurable endpoints, and endpoint zero.
+
+ Say "y" to link the driver statically, or "m" to build a
+ dynamically linked module called "r8a66597_udc" and force all
+ gadget drivers to also be dynamically linked.
+
+config USB_R8A66597
+ tristate
+ depends on USB_GADGET_R8A66597
+ default USB_GADGET
+ select USB_GADGET_SELECTED
+
config USB_GADGET_PXA27X
boolean "PXA 27x"
depends on ARCH_PXA && (PXA27x || PXA3xx)
@@ -360,16 +378,6 @@ config USB_M66592
default USB_GADGET
select USB_GADGET_SELECTED
-config SUPERH_BUILT_IN_M66592
- boolean "Enable SuperH built-in USB like the M66592"
- depends on USB_GADGET_M66592 && CPU_SUBTYPE_SH7722
- help
- SH7722 has USB like the M66592.
-
- The transfer rate is very slow when use "Ethernet Gadget".
- However, this problem is improved if change a value of
- NET_IP_ALIGN to 4.
-
#
# Controllers available only in discrete form (and all PCI controllers)
#
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index e6017e6bf6d..9d7b87c52e9 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -23,6 +23,7 @@ ifeq ($(CONFIG_ARCH_MXC),y)
fsl_usb2_udc-objs += fsl_mx3_udc.o
endif
obj-$(CONFIG_USB_M66592) += m66592-udc.o
+obj-$(CONFIG_USB_R8A66597) += r8a66597-udc.o
obj-$(CONFIG_USB_FSL_QE) += fsl_qe_udc.o
obj-$(CONFIG_USB_CI13XXX) += ci13xxx_udc.o
obj-$(CONFIG_USB_S3C_HSOTG) += s3c-hsotg.o
diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h
index 8e0e9a0b736..f2d270b202f 100644
--- a/drivers/usb/gadget/gadget_chips.h
+++ b/drivers/usb/gadget/gadget_chips.h
@@ -173,6 +173,12 @@
// CONFIG_USB_GADGET_AU1X00
// ...
+#ifdef CONFIG_USB_GADGET_R8A66597
+#define gadget_is_r8a66597(g) !strcmp("r8a66597_udc", (g)->name)
+#else
+#define gadget_is_r8a66597(g) 0
+#endif
+
/**
* usb_gadget_controller_number - support bcdDevice id convention
@@ -239,6 +245,8 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
return 0x23;
else if (gadget_is_langwell(gadget))
return 0x24;
+ else if (gadget_is_r8a66597(gadget))
+ return 0x25;
return -ENOENT;
}
diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c
index 43dcf9e1af6..a8c8543d1b0 100644
--- a/drivers/usb/gadget/m66592-udc.c
+++ b/drivers/usb/gadget/m66592-udc.c
@@ -25,44 +25,18 @@
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/platform_device.h>
-
+#include <linux/err.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include "m66592-udc.h"
-
MODULE_DESCRIPTION("M66592 USB gadget driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Yoshihiro Shimoda");
MODULE_ALIAS("platform:m66592_udc");
-#define DRIVER_VERSION "18 Oct 2007"
-
-/* module parameters */
-#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
-static unsigned short endian = M66592_LITTLE;
-module_param(endian, ushort, 0644);
-MODULE_PARM_DESC(endian, "data endian: big=0, little=0 (default=0)");
-#else
-static unsigned short clock = M66592_XTAL24;
-module_param(clock, ushort, 0644);
-MODULE_PARM_DESC(clock, "input clock: 48MHz=32768, 24MHz=16384, 12MHz=0 "
- "(default=16384)");
-
-static unsigned short vif = M66592_LDRV;
-module_param(vif, ushort, 0644);
-MODULE_PARM_DESC(vif, "input VIF: 3.3V=32768, 1.5V=0 (default=32768)");
-
-static unsigned short endian;
-module_param(endian, ushort, 0644);
-MODULE_PARM_DESC(endian, "data endian: big=256, little=0 (default=0)");
-
-static unsigned short irq_sense = M66592_INTL;
-module_param(irq_sense, ushort, 0644);
-MODULE_PARM_DESC(irq_sense, "IRQ sense: low level=2, falling edge=0 "
- "(default=2)");
-#endif
+#define DRIVER_VERSION "21 July 2009"
static const char udc_name[] = "m66592_udc";
static const char *m66592_ep_name[] = {
@@ -244,6 +218,7 @@ static inline int get_buffer_size(struct m66592 *m66592, u16 pipenum)
static inline void pipe_change(struct m66592 *m66592, u16 pipenum)
{
struct m66592_ep *ep = m66592->pipenum2ep[pipenum];
+ unsigned short mbw;
if (ep->use_dma)
return;
@@ -252,7 +227,12 @@ static inline void pipe_change(struct m66592 *m66592, u16 pipenum)
ndelay(450);
- m66592_bset(m66592, M66592_MBW, ep->fifosel);
+ if (m66592->pdata->on_chip)
+ mbw = M66592_MBW_32;
+ else
+ mbw = M66592_MBW_16;
+
+ m66592_bset(m66592, mbw, ep->fifosel);
}
static int pipe_buffer_setting(struct m66592 *m66592,
@@ -276,24 +256,27 @@ static int pipe_buffer_setting(struct m66592 *m66592,
buf_bsize = 0;
break;
case M66592_BULK:
- bufnum = m66592->bi_bufnum +
- (info->pipe - M66592_BASE_PIPENUM_BULK) * 16;
- m66592->bi_bufnum += 16;
+ /* isochronous pipes may be used as bulk pipes */
+ if (info->pipe > M66592_BASE_PIPENUM_BULK)
+ bufnum = info->pipe - M66592_BASE_PIPENUM_BULK;
+ else
+ bufnum = info->pipe - M66592_BASE_PIPENUM_ISOC;
+
+ bufnum = M66592_BASE_BUFNUM + (bufnum * 16);
buf_bsize = 7;
pipecfg |= M66592_DBLB;
if (!info->dir_in)
pipecfg |= M66592_SHTNAK;
break;
case M66592_ISO:
- bufnum = m66592->bi_bufnum +
+ bufnum = M66592_BASE_BUFNUM +
(info->pipe - M66592_BASE_PIPENUM_ISOC) * 16;
- m66592->bi_bufnum += 16;
buf_bsize = 7;
break;
}
- if (m66592->bi_bufnum > M66592_MAX_BUFNUM) {
- pr_err("m66592 pipe memory is insufficient(%d)\n",
- m66592->bi_bufnum);
+
+ if (buf_bsize && ((bufnum + 16) >= M66592_MAX_BUFNUM)) {
+ pr_err("m66592 pipe memory is insufficient\n");
return -ENOMEM;
}
@@ -313,17 +296,6 @@ static void pipe_buffer_release(struct m66592 *m66592,
if (info->pipe == 0)
return;
- switch (info->type) {
- case M66592_BULK:
- if (is_bulk_pipe(info->pipe))
- m66592->bi_bufnum -= 16;
- break;
- case M66592_ISO:
- if (is_isoc_pipe(info->pipe))
- m66592->bi_bufnum -= 16;
- break;
- }
-
if (is_bulk_pipe(info->pipe)) {
m66592->bulk--;
} else if (is_interrupt_pipe(info->pipe))
@@ -340,6 +312,7 @@ static void pipe_buffer_release(struct m66592 *m66592,
static void pipe_initialize(struct m66592_ep *ep)
{
struct m66592 *m66592 = ep->m66592;
+ unsigned short mbw;
m66592_mdfy(m66592, 0, M66592_CURPIPE, ep->fifosel);
@@ -351,7 +324,12 @@ static void pipe_initialize(struct m66592_ep *ep)
ndelay(450);
- m66592_bset(m66592, M66592_MBW, ep->fifosel);
+ if (m66592->pdata->on_chip)
+ mbw = M66592_MBW_32;
+ else
+ mbw = M66592_MBW_16;
+
+ m66592_bset(m66592, mbw, ep->fifosel);
}
}
@@ -367,15 +345,13 @@ static void m66592_ep_setting(struct m66592 *m66592, struct m66592_ep *ep,
ep->fifosel = M66592_D0FIFOSEL;
ep->fifoctr = M66592_D0FIFOCTR;
ep->fifotrn = M66592_D0FIFOTRN;
-#if !defined(CONFIG_SUPERH_BUILT_IN_M66592)
- } else if (m66592->num_dma == 1) {
+ } else if (!m66592->pdata->on_chip && m66592->num_dma == 1) {
m66592->num_dma++;
ep->use_dma = 1;
ep->fifoaddr = M66592_D1FIFO;
ep->fifosel = M66592_D1FIFOSEL;
ep->fifoctr = M66592_D1FIFOCTR;
ep->fifotrn = M66592_D1FIFOTRN;
-#endif
} else {
ep->use_dma = 0;
ep->fifoaddr = M66592_CFIFO;
@@ -620,76 +596,120 @@ static void start_ep0(struct m66592_ep *ep, struct m66592_request *req)
}
}
-#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
static void init_controller(struct m66592 *m66592)
{
- m66592_bset(m66592, M66592_HSE, M66592_SYSCFG); /* High spd */
- m66592_bclr(m66592, M66592_USBE, M66592_SYSCFG);
- m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG);
- m66592_bset(m66592, M66592_USBE, M66592_SYSCFG);
+ unsigned int endian;
- /* This is a workaound for SH7722 2nd cut */
- m66592_bset(m66592, 0x8000, M66592_DVSTCTR);
- m66592_bset(m66592, 0x1000, M66592_TESTMODE);
- m66592_bclr(m66592, 0x8000, M66592_DVSTCTR);
+ if (m66592->pdata->on_chip) {
+ if (m66592->pdata->endian)
+ endian = 0; /* big endian */
+ else
+ endian = M66592_LITTLE; /* little endian */
- m66592_bset(m66592, M66592_INTL, M66592_INTENB1);
+ m66592_bset(m66592, M66592_HSE, M66592_SYSCFG); /* High spd */
+ m66592_bclr(m66592, M66592_USBE, M66592_SYSCFG);
+ m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG);
+ m66592_bset(m66592, M66592_USBE, M66592_SYSCFG);
- m66592_write(m66592, 0, M66592_CFBCFG);
- m66592_write(m66592, 0, M66592_D0FBCFG);
- m66592_bset(m66592, endian, M66592_CFBCFG);
- m66592_bset(m66592, endian, M66592_D0FBCFG);
-}
-#else /* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
-static void init_controller(struct m66592 *m66592)
-{
- m66592_bset(m66592, (vif & M66592_LDRV) | (endian & M66592_BIGEND),
- M66592_PINCFG);
- m66592_bset(m66592, M66592_HSE, M66592_SYSCFG); /* High spd */
- m66592_mdfy(m66592, clock & M66592_XTAL, M66592_XTAL, M66592_SYSCFG);
+ /* This is a workaound for SH7722 2nd cut */
+ m66592_bset(m66592, 0x8000, M66592_DVSTCTR);
+ m66592_bset(m66592, 0x1000, M66592_TESTMODE);
+ m66592_bclr(m66592, 0x8000, M66592_DVSTCTR);
- m66592_bclr(m66592, M66592_USBE, M66592_SYSCFG);
- m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG);
- m66592_bset(m66592, M66592_USBE, M66592_SYSCFG);
+ m66592_bset(m66592, M66592_INTL, M66592_INTENB1);
+
+ m66592_write(m66592, 0, M66592_CFBCFG);
+ m66592_write(m66592, 0, M66592_D0FBCFG);
+ m66592_bset(m66592, endian, M66592_CFBCFG);
+ m66592_bset(m66592, endian, M66592_D0FBCFG);
+ } else {
+ unsigned int clock, vif, irq_sense;
+
+ if (m66592->pdata->endian)
+ endian = M66592_BIGEND; /* big endian */
+ else
+ endian = 0; /* little endian */
+
+ if (m66592->pdata->vif)
+ vif = M66592_LDRV; /* 3.3v */
+ else
+ vif = 0; /* 1.5v */
+
+ switch (m66592->pdata->xtal) {
+ case M66592_PLATDATA_XTAL_12MHZ:
+ clock = M66592_XTAL12;
+ break;
+ case M66592_PLATDATA_XTAL_24MHZ:
+ clock = M66592_XTAL24;
+ break;
+ case M66592_PLATDATA_XTAL_48MHZ:
+ clock = M66592_XTAL48;
+ break;
+ default:
+ pr_warning("m66592-udc: xtal configuration error\n");
+ clock = 0;
+ }
+
+ switch (m66592->irq_trigger) {
+ case IRQF_TRIGGER_LOW:
+ irq_sense = M66592_INTL;
+ break;
+ case IRQF_TRIGGER_FALLING:
+ irq_sense = 0;
+ break;
+ default:
+ pr_warning("m66592-udc: irq trigger config error\n");
+ irq_sense = 0;
+ }
- m66592_bset(m66592, M66592_XCKE, M66592_SYSCFG);
+ m66592_bset(m66592,
+ (vif & M66592_LDRV) | (endian & M66592_BIGEND),
+ M66592_PINCFG);
+ m66592_bset(m66592, M66592_HSE, M66592_SYSCFG); /* High spd */
+ m66592_mdfy(m66592, clock & M66592_XTAL, M66592_XTAL,
+ M66592_SYSCFG);
+ m66592_bclr(m66592, M66592_USBE, M66592_SYSCFG);
+ m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG);
+ m66592_bset(m66592, M66592_USBE, M66592_SYSCFG);
+
+ m66592_bset(m66592, M66592_XCKE, M66592_SYSCFG);
- msleep(3);
+ msleep(3);
- m66592_bset(m66592, M66592_RCKE | M66592_PLLC, M66592_SYSCFG);
+ m66592_bset(m66592, M66592_RCKE | M66592_PLLC, M66592_SYSCFG);
- msleep(1);
+ msleep(1);
- m66592_bset(m66592, M66592_SCKE, M66592_SYSCFG);
+ m66592_bset(m66592, M66592_SCKE, M66592_SYSCFG);
- m66592_bset(m66592, irq_sense & M66592_INTL, M66592_INTENB1);
- m66592_write(m66592, M66592_BURST | M66592_CPU_ADR_RD_WR,
- M66592_DMA0CFG);
+ m66592_bset(m66592, irq_sense & M66592_INTL, M66592_INTENB1);
+ m66592_write(m66592, M66592_BURST | M66592_CPU_ADR_RD_WR,
+ M66592_DMA0CFG);
+ }
}
-#endif /* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
static void disable_controller(struct m66592 *m66592)
{
-#if !defined(CONFIG_SUPERH_BUILT_IN_M66592)
- m66592_bclr(m66592, M66592_SCKE, M66592_SYSCFG);
- udelay(1);
- m66592_bclr(m66592, M66592_PLLC, M66592_SYSCFG);
- udelay(1);
- m66592_bclr(m66592, M66592_RCKE, M66592_SYSCFG);
- udelay(1);
- m66592_bclr(m66592, M66592_XCKE, M66592_SYSCFG);
-#endif
+ if (!m66592->pdata->on_chip) {
+ m66592_bclr(m66592, M66592_SCKE, M66592_SYSCFG);
+ udelay(1);
+ m66592_bclr(m66592, M66592_PLLC, M66592_SYSCFG);
+ udelay(1);
+ m66592_bclr(m66592, M66592_RCKE, M66592_SYSCFG);
+ udelay(1);
+ m66592_bclr(m66592, M66592_XCKE, M66592_SYSCFG);
+ }
}
static void m66592_start_xclock(struct m66592 *m66592)
{
-#if !defined(CONFIG_SUPERH_BUILT_IN_M66592)
u16 tmp;
- tmp = m66592_read(m66592, M66592_SYSCFG);
- if (!(tmp & M66592_XCKE))
- m66592_bset(m66592, M66592_XCKE, M66592_SYSCFG);
-#endif
+ if (!m66592->pdata->on_chip) {
+ tmp = m66592_read(m66592, M66592_SYSCFG);
+ if (!(tmp & M66592_XCKE))
+ m66592_bset(m66592, M66592_XCKE, M66592_SYSCFG);
+ }
}
/*-------------------------------------------------------------------------*/
@@ -1177,8 +1197,7 @@ static irqreturn_t m66592_irq(int irq, void *_m66592)
intsts0 = m66592_read(m66592, M66592_INTSTS0);
intenb0 = m66592_read(m66592, M66592_INTENB0);
-#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
- if (!intsts0 && !intenb0) {
+ if (m66592->pdata->on_chip && !intsts0 && !intenb0) {
/*
* When USB clock stops, it cannot read register. Even if a
* clock stops, the interrupt occurs. So this driver turn on
@@ -1188,7 +1207,6 @@ static irqreturn_t m66592_irq(int irq, void *_m66592)
intsts0 = m66592_read(m66592, M66592_INTSTS0);
intenb0 = m66592_read(m66592, M66592_INTENB0);
}
-#endif
savepipe = m66592_read(m66592, M66592_CFIFOSEL);
@@ -1534,9 +1552,11 @@ static int __exit m66592_remove(struct platform_device *pdev)
iounmap(m66592->reg);
free_irq(platform_get_irq(pdev, 0), m66592);
m66592_free_request(&m66592->ep[0].ep, m66592->ep0_req);
-#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
- clk_disable(m66592->clk);
- clk_put(m66592->clk);
+#ifdef CONFIG_HAVE_CLK
+ if (m66592->pdata->on_chip) {
+ clk_disable(m66592->clk);
+ clk_put(m66592->clk);
+ }
#endif
kfree(m66592);
return 0;
@@ -1548,11 +1568,10 @@ static void nop_completion(struct usb_ep *ep, struct usb_request *r)
static int __init m66592_probe(struct platform_device *pdev)
{
- struct resource *res;
- int irq;
+ struct resource *res, *ires;
void __iomem *reg = NULL;
struct m66592 *m66592 = NULL;
-#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
+#ifdef CONFIG_HAVE_CLK
char clk_name[8];
#endif
int ret = 0;
@@ -1565,10 +1584,11 @@ static int __init m66592_probe(struct platform_device *pdev)
goto clean_up;
}
- irq = platform_get_irq(pdev, 0);
- if (irq < 0) {
+ ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!ires) {
ret = -ENODEV;
- pr_err("platform_get_irq error.\n");
+ dev_err(&pdev->dev,
+ "platform_get_resource IORESOURCE_IRQ error.\n");
goto clean_up;
}
@@ -1579,6 +1599,12 @@ static int __init m66592_probe(struct platform_device *pdev)
goto clean_up;
}
+ if (pdev->dev.platform_data == NULL) {
+ dev_err(&pdev->dev, "no platform data\n");
+ ret = -ENODEV;
+ goto clean_up;
+ }
+
/* initialize ucd */
m66592 = kzalloc(sizeof(struct m66592), GFP_KERNEL);
if (m66592 == NULL) {
@@ -1586,6 +1612,9 @@ static int __init m66592_probe(struct platform_device *pdev)
goto clean_up;
}
+ m66592->pdata = pdev->dev.platform_data;
+ m66592->irq_trigger = ires->flags & IRQF_TRIGGER_MASK;
+
spin_lock_init(&m66592->lock);
dev_set_drvdata(&pdev->dev, m66592);
@@ -1603,24 +1632,25 @@ static int __init m66592_probe(struct platform_device *pdev)
m66592->timer.data = (unsigned long)m66592;
m66592->reg = reg;
- m66592->bi_bufnum = M66592_BASE_BUFNUM;
-
- ret = request_irq(irq, m66592_irq, IRQF_DISABLED | IRQF_SHARED,
+ ret = request_irq(ires->start, m66592_irq, IRQF_DISABLED | IRQF_SHARED,
udc_name, m66592);
if (ret < 0) {
pr_err("request_irq error (%d)\n", ret);
goto clean_up;
}
-#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
- snprintf(clk_name, sizeof(clk_name), "usbf%d", pdev->id);
- m66592->clk = clk_get(&pdev->dev, clk_name);
- if (IS_ERR(m66592->clk)) {
- dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name);
- ret = PTR_ERR(m66592->clk);
- goto clean_up2;
+#ifdef CONFIG_HAVE_CLK
+ if (m66592->pdata->on_chip) {
+ snprintf(clk_name, sizeof(clk_name), "usbf%d", pdev->id);
+ m66592->clk = clk_get(&pdev->dev, clk_name);
+ if (IS_ERR(m66592->clk)) {
+ dev_err(&pdev->dev, "cannot get clock \"%s\"\n",
+ clk_name);
+ ret = PTR_ERR(m66592->clk);
+ goto clean_up2;
+ }
+ clk_enable(m66592->clk);
}
- clk_enable(m66592->clk);
#endif
INIT_LIST_HEAD(&m66592->gadget.ep_list);
m66592->gadget.ep0 = &m66592->ep[0].ep;
@@ -1662,12 +1692,14 @@ static int __init m66592_probe(struct platform_device *pdev)
return 0;
clean_up3:
-#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
- clk_disable(m66592->clk);
- clk_put(m66592->clk);
+#ifdef CONFIG_HAVE_CLK
+ if (m66592->pdata->on_chip) {
+ clk_disable(m66592->clk);
+ clk_put(m66592->clk);
+ }
clean_up2:
#endif
- free_irq(irq, m66592);
+ free_irq(ires->start, m66592);
clean_up:
if (m66592) {
if (m66592->ep0_req)
diff --git a/drivers/usb/gadget/m66592-udc.h b/drivers/usb/gadget/m66592-udc.h
index 286ce07e796..8b960deed68 100644
--- a/drivers/usb/gadget/m66592-udc.h
+++ b/drivers/usb/gadget/m66592-udc.h
@@ -23,10 +23,12 @@
#ifndef __M66592_UDC_H__
#define __M66592_UDC_H__
-#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
+#ifdef CONFIG_HAVE_CLK
#include <linux/clk.h>
#endif
+#include <linux/usb/m66592.h>
+
#define M66592_SYSCFG 0x00
#define M66592_XTAL 0xC000 /* b15-14: Crystal selection */
#define M66592_XTAL48 0x8000 /* 48MHz */
@@ -76,11 +78,11 @@
#define M66592_P_TST_J 0x0001 /* PERI TEST J */
#define M66592_P_TST_NORMAL 0x0000 /* PERI Normal Mode */
-#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
+/* built-in registers */
#define M66592_CFBCFG 0x0A
#define M66592_D0FBCFG 0x0C
#define M66592_LITTLE 0x0100 /* b8: Little endian mode */
-#else
+/* external chip case */
#define M66592_PINCFG 0x0A
#define M66592_LDRV 0x8000 /* b15: Drive Current Adjust */
#define M66592_BIGEND 0x0100 /* b8: Big endian mode */
@@ -100,8 +102,8 @@
#define M66592_PKTM 0x0020 /* b5: Packet mode */
#define M66592_DENDE 0x0010 /* b4: Dend enable */
#define M66592_OBUS 0x0004 /* b2: OUTbus mode */
-#endif /* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
+/* common case */
#define M66592_CFIFO 0x10
#define M66592_D0FIFO 0x14
#define M66592_D1FIFO 0x18
@@ -113,13 +115,9 @@
#define M66592_REW 0x4000 /* b14: Buffer rewind */
#define M66592_DCLRM 0x2000 /* b13: DMA buffer clear mode */
#define M66592_DREQE 0x1000 /* b12: DREQ output enable */
-#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
-#define M66592_MBW 0x0800 /* b11: Maximum bit width for FIFO */
-#else
-#define M66592_MBW 0x0400 /* b10: Maximum bit width for FIFO */
-#define M66592_MBW_8 0x0000 /* 8bit */
-#define M66592_MBW_16 0x0400 /* 16bit */
-#endif /* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
+#define M66592_MBW_8 0x0000 /* 8bit */
+#define M66592_MBW_16 0x0400 /* 16bit */
+#define M66592_MBW_32 0x0800 /* 32bit */
#define M66592_TRENB 0x0200 /* b9: Transaction counter enable */
#define M66592_TRCLR 0x0100 /* b8: Transaction counter clear */
#define M66592_DEZPM 0x0080 /* b7: Zero-length packet mode */
@@ -480,9 +478,11 @@ struct m66592_ep {
struct m66592 {
spinlock_t lock;
void __iomem *reg;
-#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
+#ifdef CONFIG_HAVE_CLK
struct clk *clk;
#endif
+ struct m66592_platdata *pdata;
+ unsigned long irq_trigger;
struct usb_gadget gadget;
struct usb_gadget_driver *driver;
@@ -506,7 +506,6 @@ struct m66592 {
int interrupt;
int isochronous;
int num_dma;
- int bi_bufnum; /* bulk and isochronous's bufnum */
};
#define gadget_to_m66592(_gadget) container_of(_gadget, struct m66592, gadget)
@@ -547,13 +546,13 @@ static inline void m66592_read_fifo(struct m66592 *m66592,
{
unsigned long fifoaddr = (unsigned long)m66592->reg + offset;
-#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
- len = (len + 3) / 4;
- insl(fifoaddr, buf, len);
-#else
- len = (len + 1) / 2;
- insw(fifoaddr, buf, len);
-#endif
+ if (m66592->pdata->on_chip) {
+ len = (len + 3) / 4;
+ insl(fifoaddr, buf, len);
+ } else {
+ len = (len + 1) / 2;
+ insw(fifoaddr, buf, len);
+ }
}
static inline void m66592_write(struct m66592 *m66592, u16 val,
@@ -567,33 +566,34 @@ static inline void m66592_write_fifo(struct m66592 *m66592,
void *buf, unsigned long len)
{
unsigned long fifoaddr = (unsigned long)m66592->reg + offset;
-#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
- unsigned long count;
- unsigned char *pb;
- int i;
-
- count = len / 4;
- outsl(fifoaddr, buf, count);
-
- if (len & 0x00000003) {
- pb = buf + count * 4;
- for (i = 0; i < (len & 0x00000003); i++) {
- if (m66592_read(m66592, M66592_CFBCFG)) /* little */
- outb(pb[i], fifoaddr + (3 - i));
- else
- outb(pb[i], fifoaddr + i);
+
+ if (m66592->pdata->on_chip) {
+ unsigned long count;
+ unsigned char *pb;
+ int i;
+
+ count = len / 4;
+ outsl(fifoaddr, buf, count);
+
+ if (len & 0x00000003) {
+ pb = buf + count * 4;
+ for (i = 0; i < (len & 0x00000003); i++) {
+ if (m66592_read(m66592, M66592_CFBCFG)) /* le */
+ outb(pb[i], fifoaddr + (3 - i));
+ else
+ outb(pb[i], fifoaddr + i);
+ }
+ }
+ } else {
+ unsigned long odd = len & 0x0001;
+
+ len = len / 2;
+ outsw(fifoaddr, buf, len);
+ if (odd) {
+ unsigned char *p = buf + len*2;
+ outb(*p, fifoaddr);
}
}
-#else
- unsigned long odd = len & 0x0001;
-
- len = len / 2;
- outsw(fifoaddr, buf, len);
- if (odd) {
- unsigned char *p = buf + len*2;
- outb(*p, fifoaddr);
- }
-#endif /* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
}
static inline void m66592_mdfy(struct m66592 *m66592, u16 val, u16 pat,
diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c
new file mode 100644
index 00000000000..e220fb8091a
--- /dev/null
+++ b/drivers/usb/gadget/r8a66597-udc.c
@@ -0,0 +1,1689 @@
+/*
+ * R8A66597 UDC (USB gadget)
+ *
+ * Copyright (C) 2006-2009 Renesas Solutions Corp.
+ *
+ * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * 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 St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+
+#include "r8a66597-udc.h"
+
+#define DRIVER_VERSION "2009-08-18"
+
+static const char udc_name[] = "r8a66597_udc";
+static const char *r8a66597_ep_name[] = {
+ "ep0", "ep1", "ep2", "ep3", "ep4", "ep5", "ep6", "ep7",
+ "ep8", "ep9",
+};
+
+static void disable_controller(struct r8a66597 *r8a66597);
+static void irq_ep0_write(struct r8a66597_ep *ep, struct r8a66597_request *req);
+static void irq_packet_write(struct r8a66597_ep *ep,
+ struct r8a66597_request *req);
+static int r8a66597_queue(struct usb_ep *_ep, struct usb_request *_req,
+ gfp_t gfp_flags);
+
+static void transfer_complete(struct r8a66597_ep *ep,
+ struct r8a66597_request *req, int status);
+
+/*-------------------------------------------------------------------------*/
+static inline u16 get_usb_speed(struct r8a66597 *r8a66597)
+{
+ return r8a66597_read(r8a66597, DVSTCTR0) & RHST;
+}
+
+static void enable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum,
+ unsigned long reg)
+{
+ u16 tmp;
+
+ tmp = r8a66597_read(r8a66597, INTENB0);
+ r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE,
+ INTENB0);
+ r8a66597_bset(r8a66597, (1 << pipenum), reg);
+ r8a66597_write(r8a66597, tmp, INTENB0);
+}
+
+static void disable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum,
+ unsigned long reg)
+{
+ u16 tmp;
+
+ tmp = r8a66597_read(r8a66597, INTENB0);
+ r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE,
+ INTENB0);
+ r8a66597_bclr(r8a66597, (1 << pipenum), reg);
+ r8a66597_write(r8a66597, tmp, INTENB0);
+}
+
+static void r8a66597_usb_connect(struct r8a66597 *r8a66597)
+{
+ r8a66597_bset(r8a66597, CTRE, INTENB0);
+ r8a66597_bset(r8a66597, BEMPE | BRDYE, INTENB0);
+
+ r8a66597_bset(r8a66597, DPRPU, SYSCFG0);
+}
+
+static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597)
+__releases(r8a66597->lock)
+__acquires(r8a66597->lock)
+{
+ r8a66597_bclr(r8a66597, CTRE, INTENB0);
+ r8a66597_bclr(r8a66597, BEMPE | BRDYE, INTENB0);
+ r8a66597_bclr(r8a66597, DPRPU, SYSCFG0);
+
+ r8a66597->gadget.speed = USB_SPEED_UNKNOWN;
+ spin_unlock(&r8a66597->lock);
+ r8a66597->driver->disconnect(&r8a66597->gadget);
+ spin_lock(&r8a66597->lock);
+
+ disable_controller(r8a66597);
+ INIT_LIST_HEAD(&r8a66597->ep[0].queue);
+}
+
+static inline u16 control_reg_get_pid(struct r8a66597 *r8a66597, u16 pipenum)
+{
+ u16 pid = 0;
+ unsigned long offset;
+
+ if (pipenum == 0)
+ pid = r8a66597_read(r8a66597, DCPCTR) & PID;
+ else if (pipenum < R8A66597_MAX_NUM_PIPE) {
+ offset = get_pipectr_addr(pipenum);
+ pid = r8a66597_read(r8a66597, offset) & PID;
+ } else
+ printk(KERN_ERR "unexpect pipe num (%d)\n", pipenum);
+
+ return pid;
+}
+
+static inline void control_reg_set_pid(struct r8a66597 *r8a66597, u16 pipenum,
+ u16 pid)
+{
+ unsigned long offset;
+
+ if (pipenum == 0)
+ r8a66597_mdfy(r8a66597, pid, PID, DCPCTR);
+ else if (pipenum < R8A66597_MAX_NUM_PIPE) {
+ offset = get_pipectr_addr(pipenum);
+ r8a66597_mdfy(r8a66597, pid, PID, offset);
+ } else
+ printk(KERN_ERR "unexpect pipe num (%d)\n", pipenum);
+}
+
+static inline void pipe_start(struct r8a66597 *r8a66597, u16 pipenum)
+{
+ control_reg_set_pid(r8a66597, pipenum, PID_BUF);
+}
+
+static inline void pipe_stop(struct r8a66597 *r8a66597, u16 pipenum)
+{
+ control_reg_set_pid(r8a66597, pipenum, PID_NAK);
+}
+
+static inline void pipe_stall(struct r8a66597 *r8a66597, u16 pipenum)
+{
+ control_reg_set_pid(r8a66597, pipenum, PID_STALL);
+}
+
+static inline u16 control_reg_get(struct r8a66597 *r8a66597, u16 pipenum)
+{
+ u16 ret = 0;
+ unsigned long offset;
+
+ if (pipenum == 0)
+ ret = r8a66597_read(r8a66597, DCPCTR);
+ else if (pipenum < R8A66597_MAX_NUM_PIPE) {
+ offset = get_pipectr_addr(pipenum);
+ ret = r8a66597_read(r8a66597, offset);
+ } else
+ printk(KERN_ERR "unexpect pipe num (%d)\n", pipenum);
+
+ return ret;
+}
+
+static inline void control_reg_sqclr(struct r8a66597 *r8a66597, u16 pipenum)
+{
+ unsigned long offset;
+
+ pipe_stop(r8a66597, pipenum);
+
+ if (pipenum == 0)
+ r8a66597_bset(r8a66597, SQCLR, DCPCTR);
+ else if (pipenum < R8A66597_MAX_NUM_PIPE) {
+ offset = get_pipectr_addr(pipenum);
+ r8a66597_bset(r8a66597, SQCLR, offset);
+ } else
+ printk(KERN_ERR "unexpect pipe num(%d)\n", pipenum);
+}
+
+static inline int get_buffer_size(struct r8a66597 *r8a66597, u16 pipenum)
+{
+ u16 tmp;
+ int size;
+
+ if (pipenum == 0) {
+ tmp = r8a66597_read(r8a66597, DCPCFG);
+ if ((tmp & R8A66597_CNTMD) != 0)
+ size = 256;
+ else {
+ tmp = r8a66597_read(r8a66597, DCPMAXP);
+ size = tmp & MAXP;
+ }
+ } else {
+ r8a66597_write(r8a66597, pipenum, PIPESEL);
+ tmp = r8a66597_read(r8a66597, PIPECFG);
+ if ((tmp & R8A66597_CNTMD) != 0) {
+ tmp = r8a66597_read(r8a66597, PIPEBUF);
+ size = ((tmp >> 10) + 1) * 64;
+ } else {
+ tmp = r8a66597_read(r8a66597, PIPEMAXP);
+ size = tmp & MXPS;
+ }
+ }
+
+ return size;
+}
+
+static inline unsigned short mbw_value(struct r8a66597 *r8a66597)
+{
+ if (r8a66597->pdata->on_chip)
+ return MBW_32;
+ else
+ return MBW_16;
+}
+
+static inline void pipe_change(struct r8a66597 *r8a66597, u16 pipenum)
+{
+ struct r8a66597_ep *ep = r8a66597->pipenum2ep[pipenum];
+
+ if (ep->use_dma)
+ return;
+
+ r8a66597_mdfy(r8a66597, pipenum, CURPIPE, ep->fifosel);
+
+ ndelay(450);
+
+ r8a66597_bset(r8a66597, mbw_value(r8a66597), ep->fifosel);
+}
+
+static int pipe_buffer_setting(struct r8a66597 *r8a66597,
+ struct r8a66597_pipe_info *info)
+{
+ u16 bufnum = 0, buf_bsize = 0;
+ u16 pipecfg = 0;
+
+ if (info->pipe == 0)
+ return -EINVAL;
+
+ r8a66597_write(r8a66597, info->pipe, PIPESEL);
+
+ if (info->dir_in)
+ pipecfg |= R8A66597_DIR;
+ pipecfg |= info->type;
+ pipecfg |= info->epnum;
+ switch (info->type) {
+ case R8A66597_INT:
+ bufnum = 4 + (info->pipe - R8A66597_BASE_PIPENUM_INT);
+ buf_bsize = 0;
+ break;
+ case R8A66597_BULK:
+ /* isochronous pipes may be used as bulk pipes */
+ if (info->pipe > R8A66597_BASE_PIPENUM_BULK)
+ bufnum = info->pipe - R8A66597_BASE_PIPENUM_BULK;
+ else
+ bufnum = info->pipe - R8A66597_BASE_PIPENUM_ISOC;
+
+ bufnum = R8A66597_BASE_BUFNUM + (bufnum * 16);
+ buf_bsize = 7;
+ pipecfg |= R8A66597_DBLB;
+ if (!info->dir_in)
+ pipecfg |= R8A66597_SHTNAK;
+ break;
+ case R8A66597_ISO:
+ bufnum = R8A66597_BASE_BUFNUM +
+ (info->pipe - R8A66597_BASE_PIPENUM_ISOC) * 16;
+ buf_bsize = 7;
+ break;
+ }
+
+ if (buf_bsize && ((bufnum + 16) >= R8A66597_MAX_BUFNUM)) {
+ pr_err(KERN_ERR "r8a66597 pipe memory is insufficient\n");
+ return -ENOMEM;
+ }
+
+ r8a66597_write(r8a66597, pipecfg, PIPECFG);
+ r8a66597_write(r8a66597, (buf_bsize << 10) | (bufnum), PIPEBUF);
+ r8a66597_write(r8a66597, info->maxpacket, PIPEMAXP);
+ if (info->interval)
+ info->interval--;
+ r8a66597_write(r8a66597, info->interval, PIPEPERI);
+
+ return 0;
+}
+
+static void pipe_buffer_release(struct r8a66597 *r8a66597,
+ struct r8a66597_pipe_info *info)
+{
+ if (info->pipe == 0)
+ return;
+
+ if (is_bulk_pipe(info->pipe))
+ r8a66597->bulk--;
+ else if (is_interrupt_pipe(info->pipe))
+ r8a66597->interrupt--;
+ else if (is_isoc_pipe(info->pipe)) {
+ r8a66597->isochronous--;
+ if (info->type == R8A66597_BULK)
+ r8a66597->bulk--;
+ } else
+ printk(KERN_ERR "ep_release: unexpect pipenum (%d)\n",
+ info->pipe);
+}
+
+static void pipe_initialize(struct r8a66597_ep *ep)
+{
+ struct r8a66597 *r8a66597 = ep->r8a66597;
+
+ r8a66597_mdfy(r8a66597, 0, CURPIPE, ep->fifosel);
+
+ r8a66597_write(r8a66597, ACLRM, ep->pipectr);
+ r8a66597_write(r8a66597, 0, ep->pipectr);
+ r8a66597_write(r8a66597, SQCLR, ep->pipectr);
+ if (ep->use_dma) {
+ r8a66597_mdfy(r8a66597, ep->pipenum, CURPIPE, ep->fifosel);
+
+ ndelay(450);
+
+ r8a66597_bset(r8a66597, mbw_value(r8a66597), ep->fifosel);
+ }
+}
+
+static void r8a66597_ep_setting(struct r8a66597 *r8a66597,
+ struct r8a66597_ep *ep,
+ const struct usb_endpoint_descriptor *desc,
+ u16 pipenum, int dma)
+{
+ ep->use_dma = 0;
+ ep->fifoaddr = CFIFO;
+ ep->fifosel = CFIFOSEL;
+ ep->fifoctr = CFIFOCTR;
+ ep->fifotrn = 0;
+
+ ep->pipectr = get_pipectr_addr(pipenum);
+ ep->pipenum = pipenum;
+ ep->ep.maxpacket = le16_to_cpu(desc->wMaxPacketSize);
+ r8a66597->pipenum2ep[pipenum] = ep;
+ r8a66597->epaddr2ep[desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK]
+ = ep;
+ INIT_LIST_HEAD(&ep->queue);
+}
+
+static void r8a66597_ep_release(struct r8a66597_ep *ep)
+{
+ struct r8a66597 *r8a66597 = ep->r8a66597;
+ u16 pipenum = ep->pipenum;
+
+ if (pipenum == 0)
+ return;
+
+ if (ep->use_dma)
+ r8a66597->num_dma--;
+ ep->pipenum = 0;
+ ep->busy = 0;
+ ep->use_dma = 0;
+}
+
+static int alloc_pipe_config(struct r8a66597_ep *ep,
+ const struct usb_endpoint_descriptor *desc)
+{
+ struct r8a66597 *r8a66597 = ep->r8a66597;
+ struct r8a66597_pipe_info info;
+ int dma = 0;
+ unsigned char *counter;
+ int ret;
+
+ ep->desc = desc;
+
+ if (ep->pipenum) /* already allocated pipe */
+ return 0;
+
+ switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
+ case USB_ENDPOINT_XFER_BULK:
+ if (r8a66597->bulk >= R8A66597_MAX_NUM_BULK) {
+ if (r8a66597->isochronous >= R8A66597_MAX_NUM_ISOC) {
+ printk(KERN_ERR "bulk pipe is insufficient\n");
+ return -ENODEV;
+ } else {
+ info.pipe = R8A66597_BASE_PIPENUM_ISOC
+ + r8a66597->isochronous;
+ counter = &r8a66597->isochronous;
+ }
+ } else {
+ info.pipe = R8A66597_BASE_PIPENUM_BULK + r8a66597->bulk;
+ counter = &r8a66597->bulk;
+ }
+ info.type = R8A66597_BULK;
+ dma = 1;
+ break;
+ case USB_ENDPOINT_XFER_INT:
+ if (r8a66597->interrupt >= R8A66597_MAX_NUM_INT) {
+ printk(KERN_ERR "interrupt pipe is insufficient\n");
+ return -ENODEV;
+ }
+ info.pipe = R8A66597_BASE_PIPENUM_INT + r8a66597->interrupt;
+ info.type = R8A66597_INT;
+ counter = &r8a66597->interrupt;
+ break;
+ case USB_ENDPOINT_XFER_ISOC:
+ if (r8a66597->isochronous >= R8A66597_MAX_NUM_ISOC) {
+ printk(KERN_ERR "isochronous pipe is insufficient\n");
+ return -ENODEV;
+ }
+ info.pipe = R8A66597_BASE_PIPENUM_ISOC + r8a66597->isochronous;
+ info.type = R8A66597_ISO;
+ counter = &r8a66597->isochronous;
+ break;
+ default:
+ printk(KERN_ERR "unexpect xfer type\n");
+ return -EINVAL;
+ }
+ ep->type = info.type;
+
+ info.epnum = desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+ info.maxpacket = le16_to_cpu(desc->wMaxPacketSize);
+ info.interval = desc->bInterval;
+ if (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
+ info.dir_in = 1;
+ else
+ info.dir_in = 0;
+
+ ret = pipe_buffer_setting(r8a66597, &info);
+ if (ret < 0) {
+ printk(KERN_ERR "pipe_buffer_setting fail\n");
+ return ret;
+ }
+
+ (*counter)++;
+ if ((counter == &r8a66597->isochronous) && info.type == R8A66597_BULK)
+ r8a66597->bulk++;
+
+ r8a66597_ep_setting(r8a66597, ep, desc, info.pipe, dma);
+ pipe_initialize(ep);
+
+ return 0;
+}
+
+static int free_pipe_config(struct r8a66597_ep *ep)
+{
+ struct r8a66597 *r8a66597 = ep->r8a66597;
+ struct r8a66597_pipe_info info;
+
+ info.pipe = ep->pipenum;
+ info.type = ep->type;
+ pipe_buffer_release(r8a66597, &info);
+ r8a66597_ep_release(ep);
+
+ return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+static void pipe_irq_enable(struct r8a66597 *r8a66597, u16 pipenum)
+{
+ enable_irq_ready(r8a66597, pipenum);
+ enable_irq_nrdy(r8a66597, pipenum);
+}
+
+static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum)
+{
+ disable_irq_ready(r8a66597, pipenum);
+ disable_irq_nrdy(r8a66597, pipenum);
+}
+
+/* if complete is true, gadget driver complete function is not call */
+static void control_end(struct r8a66597 *r8a66597, unsigned ccpl)
+{
+ r8a66597->ep[0].internal_ccpl = ccpl;
+ pipe_start(r8a66597, 0);
+ r8a66597_bset(r8a66597, CCPL, DCPCTR);
+}
+
+static void start_ep0_write(struct r8a66597_ep *ep,
+ struct r8a66597_request *req)
+{
+ struct r8a66597 *r8a66597 = ep->r8a66597;
+
+ pipe_change(r8a66597, ep->pipenum);
+ r8a66597_mdfy(r8a66597, ISEL, (ISEL | CURPIPE), CFIFOSEL);
+ r8a66597_write(r8a66597, BCLR, ep->fifoctr);
+ if (req->req.length == 0) {
+ r8a66597_bset(r8a66597, BVAL, ep->fifoctr);
+ pipe_start(r8a66597, 0);
+ transfer_complete(ep, req, 0);
+ } else {
+ r8a66597_write(r8a66597, ~BEMP0, BEMPSTS);
+ irq_ep0_write(ep, req);
+ }
+}
+
+static void start_packet_write(struct r8a66597_ep *ep,
+ struct r8a66597_request *req)
+{
+ struct r8a66597 *r8a66597 = ep->r8a66597;
+ u16 tmp;
+
+ pipe_change(r8a66597, ep->pipenum);
+ disable_irq_empty(r8a66597, ep->pipenum);
+ pipe_start(r8a66597, ep->pipenum);
+
+ tmp = r8a66597_read(r8a66597, ep->fifoctr);
+ if (unlikely((tmp & FRDY) == 0))
+ pipe_irq_enable(r8a66597, ep->pipenum);
+ else
+ irq_packet_write(ep, req);
+}
+
+static void start_packet_read(struct r8a66597_ep *ep,
+ struct r8a66597_request *req)
+{
+ struct r8a66597 *r8a66597 = ep->r8a66597;
+ u16 pipenum = ep->pipenum;
+
+ if (ep->pipenum == 0) {
+ r8a66597_mdfy(r8a66597, 0, (ISEL | CURPIPE), CFIFOSEL);
+ r8a66597_write(r8a66597, BCLR, ep->fifoctr);
+ pipe_start(r8a66597, pipenum);
+ pipe_irq_enable(r8a66597, pipenum);
+ } else {
+ if (ep->use_dma) {
+ r8a66597_bset(r8a66597, TRCLR, ep->fifosel);
+ pipe_change(r8a66597, pipenum);
+ r8a66597_bset(r8a66597, TRENB, ep->fifosel);
+ r8a66597_write(r8a66597,
+ (req->req.length + ep->ep.maxpacket - 1)
+ / ep->ep.maxpacket,
+ ep->fifotrn);
+ }
+ pipe_start(r8a66597, pipenum); /* trigger once */
+ pipe_irq_enable(r8a66597, pipenum);
+ }
+}
+
+static void start_packet(struct r8a66597_ep *ep, struct r8a66597_request *req)
+{
+ if (ep->desc->bEndpointAddress & USB_DIR_IN)
+ start_packet_write(ep, req);
+ else
+ start_packet_read(ep, req);
+}
+
+static void start_ep0(struct r8a66597_ep *ep, struct r8a66597_request *req)
+{
+ u16 ctsq;
+
+ ctsq = r8a66597_read(ep->r8a66597, INTSTS0) & CTSQ;
+
+ switch (ctsq) {
+ case CS_RDDS:
+ start_ep0_write(ep, req);
+ break;
+ case CS_WRDS:
+ start_packet_read(ep, req);
+ break;
+
+ case CS_WRND:
+ control_end(ep->r8a66597, 0);
+ break;
+ default:
+ printk(KERN_ERR "start_ep0: unexpect ctsq(%x)\n", ctsq);
+ break;
+ }
+}
+
+static void init_controller(struct r8a66597 *r8a66597)
+{
+ u16 vif = r8a66597->pdata->vif ? LDRV : 0;
+ u16 irq_sense = r8a66597->irq_sense_low ? INTL : 0;
+ u16 endian = r8a66597->pdata->endian ? BIGEND : 0;
+
+ if (r8a66597->pdata->on_chip) {
+ r8a66597_bset(r8a66597, 0x04, SYSCFG1);
+ r8a66597_bset(r8a66597, HSE, SYSCFG0);
+
+ r8a66597_bclr(r8a66597, USBE, SYSCFG0);
+ r8a66597_bclr(r8a66597, DPRPU, SYSCFG0);
+ r8a66597_bset(r8a66597, USBE, SYSCFG0);
+
+ r8a66597_bset(r8a66597, SCKE, SYSCFG0);
+
+ r8a66597_bset(r8a66597, irq_sense, INTENB1);
+ r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR,
+ DMA0CFG);
+ } else {
+ r8a66597_bset(r8a66597, vif | endian, PINCFG);
+ r8a66597_bset(r8a66597, HSE, SYSCFG0); /* High spd */
+ r8a66597_mdfy(r8a66597, get_xtal_from_pdata(r8a66597->pdata),
+ XTAL, SYSCFG0);
+
+ r8a66597_bclr(r8a66597, USBE, SYSCFG0);
+ r8a66597_bclr(r8a66597, DPRPU, SYSCFG0);
+ r8a66597_bset(r8a66597, USBE, SYSCFG0);
+
+ r8a66597_bset(r8a66597, XCKE, SYSCFG0);
+
+ msleep(3);
+
+ r8a66597_bset(r8a66597, PLLC, SYSCFG0);
+
+ msleep(1);
+
+ r8a66597_bset(r8a66597, SCKE, SYSCFG0);
+
+ r8a66597_bset(r8a66597, irq_sense, INTENB1);
+ r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR,
+ DMA0CFG);
+ }
+}
+
+static void disable_controller(struct r8a66597 *r8a66597)
+{
+ if (r8a66597->pdata->on_chip) {
+ r8a66597_bset(r8a66597, SCKE, SYSCFG0);
+
+ /* disable interrupts */
+ r8a66597_write(r8a66597, 0, INTENB0);
+ r8a66597_write(r8a66597, 0, INTENB1);
+ r8a66597_write(r8a66597, 0, BRDYENB);
+ r8a66597_write(r8a66597, 0, BEMPENB);
+ r8a66597_write(r8a66597, 0, NRDYENB);
+
+ /* clear status */
+ r8a66597_write(r8a66597, 0, BRDYSTS);
+ r8a66597_write(r8a66597, 0, NRDYSTS);
+ r8a66597_write(r8a66597, 0, BEMPSTS);
+
+ r8a66597_bclr(r8a66597, USBE, SYSCFG0);
+ r8a66597_bclr(r8a66597, SCKE, SYSCFG0);
+
+ } else {
+ r8a66597_bclr(r8a66597, SCKE, SYSCFG0);
+ udelay(1);
+ r8a66597_bclr(r8a66597, PLLC, SYSCFG0);
+ udelay(1);
+ udelay(1);
+ r8a66597_bclr(r8a66597, XCKE, SYSCFG0);
+ }
+}
+
+static void r8a66597_start_xclock(struct r8a66597 *r8a66597)
+{
+ u16 tmp;
+
+ if (!r8a66597->pdata->on_chip) {
+ tmp = r8a66597_read(r8a66597, SYSCFG0);
+ if (!(tmp & XCKE))
+ r8a66597_bset(r8a66597, XCKE, SYSCFG0);
+ }
+}
+
+static struct r8a66597_request *get_request_from_ep(struct r8a66597_ep *ep)
+{
+ return list_entry(ep->queue.next, struct r8a66597_request, queue);
+}
+
+/*-------------------------------------------------------------------------*/
+static void transfer_complete(struct r8a66597_ep *ep,
+ struct r8a66597_request *req, int status)
+__releases(r8a66597->lock)
+__acquires(r8a66597->lock)
+{
+ int restart = 0;
+
+ if (unlikely(ep->pipenum == 0)) {
+ if (ep->internal_ccpl) {
+ ep->internal_ccpl = 0;
+ return;
+ }
+ }
+
+ list_del_init(&req->queue);
+ if (ep->r8a66597->gadget.speed == USB_SPEED_UNKNOWN)
+ req->req.status = -ESHUTDOWN;
+ else
+ req->req.status = status;
+
+ if (!list_empty(&ep->queue))
+ restart = 1;
+
+ spin_unlock(&ep->r8a66597->lock);
+ req->req.complete(&ep->ep, &req->req);
+ spin_lock(&ep->r8a66597->lock);
+
+ if (restart) {
+ req = get_request_from_ep(ep);
+ if (ep->desc)
+ start_packet(ep, req);
+ }
+}
+
+static void irq_ep0_write(struct r8a66597_ep *ep, struct r8a66597_request *req)
+{
+ int i;
+ u16 tmp;
+ unsigned bufsize;
+ size_t size;
+ void *buf;
+ u16 pipenum = ep->pipenum;
+ struct r8a66597 *r8a66597 = ep->r8a66597;
+
+ pipe_change(r8a66597, pipenum);
+ r8a66597_bset(r8a66597, ISEL, ep->fifosel);
+
+ i = 0;
+ do {
+ tmp = r8a66597_read(r8a66597, ep->fifoctr);
+ if (i++ > 100000) {
+ printk(KERN_ERR "pipe0 is busy. maybe cpu i/o bus"
+ "conflict. please power off this controller.");
+ return;
+ }
+ ndelay(1);
+ } while ((tmp & FRDY) == 0);
+
+ /* prepare parameters */
+ bufsize = get_buffer_size(r8a66597, pipenum);
+ buf = req->req.buf + req->req.actual;
+ size = min(bufsize, req->req.length - req->req.actual);
+
+ /* write fifo */
+ if (req->req.buf) {
+ if (size > 0)
+ r8a66597_write_fifo(r8a66597, ep->fifoaddr, buf, size);
+ if ((size == 0) || ((size % ep->ep.maxpacket) != 0))
+ r8a66597_bset(r8a66597, BVAL, ep->fifoctr);
+ }
+
+ /* update parameters */
+ req->req.actual += size;
+
+ /* check transfer finish */
+ if ((!req->req.zero && (req->req.actual == req->req.length))
+ || (size % ep->ep.maxpacket)
+ || (size == 0)) {
+ disable_irq_ready(r8a66597, pipenum);
+ disable_irq_empty(r8a66597, pipenum);
+ } else {
+ disable_irq_ready(r8a66597, pipenum);
+ enable_irq_empty(r8a66597, pipenum);
+ }
+ pipe_start(r8a66597, pipenum);
+}
+
+static void irq_packet_write(struct r8a66597_ep *ep,
+ struct r8a66597_request *req)
+{
+ u16 tmp;
+ unsigned bufsize;
+ size_t size;
+ void *buf;
+ u16 pipenum = ep->pipenum;
+ struct r8a66597 *r8a66597 = ep->r8a66597;
+
+ pipe_change(r8a66597, pipenum);
+ tmp = r8a66597_read(r8a66597, ep->fifoctr);
+ if (unlikely((tmp & FRDY) == 0)) {
+ pipe_stop(r8a66597, pipenum);
+ pipe_irq_disable(r8a66597, pipenum);
+ printk(KERN_ERR "write fifo not ready. pipnum=%d\n", pipenum);
+ return;
+ }
+
+ /* prepare parameters */
+ bufsize = get_buffer_size(r8a66597, pipenum);
+ buf = req->req.buf + req->req.actual;
+ size = min(bufsize, req->req.length - req->req.actual);
+
+ /* write fifo */
+ if (req->req.buf) {
+ r8a66597_write_fifo(r8a66597, ep->fifoaddr, buf, size);
+ if ((size == 0)
+ || ((size % ep->ep.maxpacket) != 0)
+ || ((bufsize != ep->ep.maxpacket)
+ && (bufsize > size)))
+ r8a66597_bset(r8a66597, BVAL, ep->fifoctr);
+ }
+
+ /* update parameters */
+ req->req.actual += size;
+ /* check transfer finish */
+ if ((!req->req.zero && (req->req.actual == req->req.length))
+ || (size % ep->ep.maxpacket)
+ || (size == 0)) {
+ disable_irq_ready(r8a66597, pipenum);
+ enable_irq_empty(r8a66597, pipenum);
+ } else {
+ disable_irq_empty(r8a66597, pipenum);
+ pipe_irq_enable(r8a66597, pipenum);
+ }
+}
+
+static void irq_packet_read(struct r8a66597_ep *ep,
+ struct r8a66597_request *req)
+{
+ u16 tmp;
+ int rcv_len, bufsize, req_len;
+ int size;
+ void *buf;
+ u16 pipenum = ep->pipenum;
+ struct r8a66597 *r8a66597 = ep->r8a66597;
+ int finish = 0;
+
+ pipe_change(r8a66597, pipenum);
+ tmp = r8a66597_read(r8a66597, ep->fifoctr);
+ if (unlikely((tmp & FRDY) == 0)) {
+ req->req.status = -EPIPE;
+ pipe_stop(r8a66597, pipenum);
+ pipe_irq_disable(r8a66597, pipenum);
+ printk(KERN_ERR "read fifo not ready");
+ return;
+ }
+
+ /* prepare parameters */
+ rcv_len = tmp & DTLN;
+ bufsize = get_buffer_size(r8a66597, pipenum);
+
+ buf = req->req.buf + req->req.actual;
+ req_len = req->req.length - req->req.actual;
+ if (rcv_len < bufsize)
+ size = min(rcv_len, req_len);
+ else
+ size = min(bufsize, req_len);
+
+ /* update parameters */
+ req->req.actual += size;
+
+ /* check transfer finish */
+ if ((!req->req.zero && (req->req.actual == req->req.length))
+ || (size % ep->ep.maxpacket)
+ || (size == 0)) {
+ pipe_stop(r8a66597, pipenum);
+ pipe_irq_disable(r8a66597, pipenum);
+ finish = 1;
+ }
+
+ /* read fifo */
+ if (req->req.buf) {
+ if (size == 0)
+ r8a66597_write(r8a66597, BCLR, ep->fifoctr);
+ else
+ r8a66597_read_fifo(r8a66597, ep->fifoaddr, buf, size);
+
+ }
+
+ if ((ep->pipenum != 0) && finish)
+ transfer_complete(ep, req, 0);
+}
+
+static void irq_pipe_ready(struct r8a66597 *r8a66597, u16 status, u16 enb)
+{
+ u16 check;
+ u16 pipenum;
+ struct r8a66597_ep *ep;
+ struct r8a66597_request *req;
+
+ if ((status & BRDY0) && (enb & BRDY0)) {
+ r8a66597_write(r8a66597, ~BRDY0, BRDYSTS);
+ r8a66597_mdfy(r8a66597, 0, CURPIPE, CFIFOSEL);
+
+ ep = &r8a66597->ep[0];
+ req = get_request_from_ep(ep);
+ irq_packet_read(ep, req);
+ } else {
+ for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
+ check = 1 << pipenum;
+ if ((status & check) && (enb & check)) {
+ r8a66597_write(r8a66597, ~check, BRDYSTS);
+ ep = r8a66597->pipenum2ep[pipenum];
+ req = get_request_from_ep(ep);
+ if (ep->desc->bEndpointAddress & USB_DIR_IN)
+ irq_packet_write(ep, req);
+ else
+ irq_packet_read(ep, req);
+ }
+ }
+ }
+}
+
+static void irq_pipe_empty(struct r8a66597 *r8a66597, u16 status, u16 enb)
+{
+ u16 tmp;
+ u16 check;
+ u16 pipenum;
+ struct r8a66597_ep *ep;
+ struct r8a66597_request *req;
+
+ if ((status & BEMP0) && (enb & BEMP0)) {
+ r8a66597_write(r8a66597, ~BEMP0, BEMPSTS);
+
+ ep = &r8a66597->ep[0];
+ req = get_request_from_ep(ep);
+ irq_ep0_write(ep, req);
+ } else {
+ for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
+ check = 1 << pipenum;
+ if ((status & check) && (enb & check)) {
+ r8a66597_write(r8a66597, ~check, BEMPSTS);
+ tmp = control_reg_get(r8a66597, pipenum);
+ if ((tmp & INBUFM) == 0) {
+ disable_irq_empty(r8a66597, pipenum);
+ pipe_irq_disable(r8a66597, pipenum);
+ pipe_stop(r8a66597, pipenum);
+ ep = r8a66597->pipenum2ep[pipenum];
+ req = get_request_from_ep(ep);
+ if (!list_empty(&ep->queue))
+ transfer_complete(ep, req, 0);
+ }
+ }
+ }
+ }
+}
+
+static void get_status(struct r8a66597 *r8a66597, struct usb_ctrlrequest *ctrl)
+__releases(r8a66597->lock)
+__acquires(r8a66597->lock)
+{
+ struct r8a66597_ep *ep;
+ u16 pid;
+ u16 status = 0;
+ u16 w_index = le16_to_cpu(ctrl->wIndex);
+
+ switch (ctrl->bRequestType & USB_RECIP_MASK) {
+ case USB_RECIP_DEVICE:
+ status = 1 << USB_DEVICE_SELF_POWERED;
+ break;
+ case USB_RECIP_INTERFACE:
+ status = 0;
+ break;
+ case USB_RECIP_ENDPOINT:
+ ep = r8a66597->epaddr2ep[w_index & USB_ENDPOINT_NUMBER_MASK];
+ pid = control_reg_get_pid(r8a66597, ep->pipenum);
+ if (pid == PID_STALL)
+ status = 1 << USB_ENDPOINT_HALT;
+ else
+ status = 0;
+ break;
+ default:
+ pipe_stall(r8a66597, 0);
+ return; /* exit */
+ }
+
+ r8a66597->ep0_data = cpu_to_le16(status);
+ r8a66597->ep0_req->buf = &r8a66597->ep0_data;
+ r8a66597->ep0_req->length = 2;
+ /* AV: what happens if we get called again before that gets through? */
+ spin_unlock(&r8a66597->lock);
+ r8a66597_queue(r8a66597->gadget.ep0, r8a66597->ep0_req, GFP_KERNEL);
+ spin_lock(&r8a66597->lock);
+}
+
+static void clear_feature(struct r8a66597 *r8a66597,
+ struct usb_ctrlrequest *ctrl)
+{
+ switch (ctrl->bRequestType & USB_RECIP_MASK) {
+ case USB_RECIP_DEVICE:
+ control_end(r8a66597, 1);
+ break;
+ case USB_RECIP_INTERFACE:
+ control_end(r8a66597, 1);
+ break;
+ case USB_RECIP_ENDPOINT: {
+ struct r8a66597_ep *ep;
+ struct r8a66597_request *req;
+ u16 w_index = le16_to_cpu(ctrl->wIndex);
+
+ ep = r8a66597->epaddr2ep[w_index & USB_ENDPOINT_NUMBER_MASK];
+ if (!ep->wedge) {
+ pipe_stop(r8a66597, ep->pipenum);
+ control_reg_sqclr(r8a66597, ep->pipenum);
+ spin_unlock(&r8a66597->lock);
+ usb_ep_clear_halt(&ep->ep);
+ spin_lock(&r8a66597->lock);
+ }
+
+ control_end(r8a66597, 1);
+
+ req = get_request_from_ep(ep);
+ if (ep->busy) {
+ ep->busy = 0;
+ if (list_empty(&ep->queue))
+ break;
+ start_packet(ep, req);
+ } else if (!list_empty(&ep->queue))
+ pipe_start(r8a66597, ep->pipenum);
+ }
+ break;
+ default:
+ pipe_stall(r8a66597, 0);
+ break;
+ }
+}
+
+static void set_feature(struct r8a66597 *r8a66597, struct usb_ctrlrequest *ctrl)
+{
+
+ switch (ctrl->bRequestType & USB_RECIP_MASK) {
+ case USB_RECIP_DEVICE:
+ control_end(r8a66597, 1);
+ break;
+ case USB_RECIP_INTERFACE:
+ control_end(r8a66597, 1);
+ break;
+ case USB_RECIP_ENDPOINT: {
+ struct r8a66597_ep *ep;
+ u16 w_index = le16_to_cpu(ctrl->wIndex);
+
+ ep = r8a66597->epaddr2ep[w_index & USB_ENDPOINT_NUMBER_MASK];
+ pipe_stall(r8a66597, ep->pipenum);
+
+ control_end(r8a66597, 1);
+ }
+ break;
+ default:
+ pipe_stall(r8a66597, 0);
+ break;
+ }
+}
+
+/* if return value is true, call class driver's setup() */
+static int setup_packet(struct r8a66597 *r8a66597, struct usb_ctrlrequest *ctrl)
+{
+ u16 *p = (u16 *)ctrl;
+ unsigned long offset = USBREQ;
+ int i, ret = 0;
+
+ /* read fifo */
+ r8a66597_write(r8a66597, ~VALID, INTSTS0);
+
+ for (i = 0; i < 4; i++)
+ p[i] = r8a66597_read(r8a66597, offset + i*2);
+
+ /* check request */
+ if ((ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) {
+ switch (ctrl->bRequest) {
+ case USB_REQ_GET_STATUS:
+ get_status(r8a66597, ctrl);
+ break;
+ case USB_REQ_CLEAR_FEATURE:
+ clear_feature(r8a66597, ctrl);
+ break;
+ case USB_REQ_SET_FEATURE:
+ set_feature(r8a66597, ctrl);
+ break;
+ default:
+ ret = 1;
+ break;
+ }
+ } else
+ ret = 1;
+ return ret;
+}
+
+static void r8a66597_update_usb_speed(struct r8a66597 *r8a66597)
+{
+ u16 speed = get_usb_speed(r8a66597);
+
+ switch (speed) {
+ case HSMODE:
+ r8a66597->gadget.speed = USB_SPEED_HIGH;
+ break;
+ case FSMODE:
+ r8a66597->gadget.speed = USB_SPEED_FULL;
+ break;
+ default:
+ r8a66597->gadget.speed = USB_SPEED_UNKNOWN;
+ printk(KERN_ERR "USB speed unknown\n");
+ }
+}
+
+static void irq_device_state(struct r8a66597 *r8a66597)
+{
+ u16 dvsq;
+
+ dvsq = r8a66597_read(r8a66597, INTSTS0) & DVSQ;
+ r8a66597_write(r8a66597, ~DVST, INTSTS0);
+
+ if (dvsq == DS_DFLT) {
+ /* bus reset */
+ r8a66597->driver->disconnect(&r8a66597->gadget);
+ r8a66597_update_usb_speed(r8a66597);
+ }
+ if (r8a66597->old_dvsq == DS_CNFG && dvsq != DS_CNFG)
+ r8a66597_update_usb_speed(r8a66597);
+ if ((dvsq == DS_CNFG || dvsq == DS_ADDS)
+ && r8a66597->gadget.speed == USB_SPEED_UNKNOWN)
+ r8a66597_update_usb_speed(r8a66597);
+
+ r8a66597->old_dvsq = dvsq;
+}
+
+static void irq_control_stage(struct r8a66597 *r8a66597)
+__releases(r8a66597->lock)
+__acquires(r8a66597->lock)
+{
+ struct usb_ctrlrequest ctrl;
+ u16 ctsq;
+
+ ctsq = r8a66597_read(r8a66597, INTSTS0) & CTSQ;
+ r8a66597_write(r8a66597, ~CTRT, INTSTS0);
+
+ switch (ctsq) {
+ case CS_IDST: {
+ struct r8a66597_ep *ep;
+ struct r8a66597_request *req;
+ ep = &r8a66597->ep[0];
+ req = get_request_from_ep(ep);
+ transfer_complete(ep, req, 0);
+ }
+ break;
+
+ case CS_RDDS:
+ case CS_WRDS:
+ case CS_WRND:
+ if (setup_packet(r8a66597, &ctrl)) {
+ spin_unlock(&r8a66597->lock);
+ if (r8a66597->driver->setup(&r8a66597->gadget, &ctrl)
+ < 0)
+ pipe_stall(r8a66597, 0);
+ spin_lock(&r8a66597->lock);
+ }
+ break;
+ case CS_RDSS:
+ case CS_WRSS:
+ control_end(r8a66597, 0);
+ break;
+ default:
+ printk(KERN_ERR "ctrl_stage: unexpect ctsq(%x)\n", ctsq);
+ break;
+ }
+}
+
+static irqreturn_t r8a66597_irq(int irq, void *_r8a66597)
+{
+ struct r8a66597 *r8a66597 = _r8a66597;
+ u16 intsts0;
+ u16 intenb0;
+ u16 brdysts, nrdysts, bempsts;
+ u16 brdyenb, nrdyenb, bempenb;
+ u16 savepipe;
+ u16 mask0;
+
+ spin_lock(&r8a66597->lock);
+
+ intsts0 = r8a66597_read(r8a66597, INTSTS0);
+ intenb0 = r8a66597_read(r8a66597, INTENB0);
+
+ savepipe = r8a66597_read(r8a66597, CFIFOSEL);
+
+ mask0 = intsts0 & intenb0;
+ if (mask0) {
+ brdysts = r8a66597_read(r8a66597, BRDYSTS);
+ nrdysts = r8a66597_read(r8a66597, NRDYSTS);
+ bempsts = r8a66597_read(r8a66597, BEMPSTS);
+ brdyenb = r8a66597_read(r8a66597, BRDYENB);
+ nrdyenb = r8a66597_read(r8a66597, NRDYENB);
+ bempenb = r8a66597_read(r8a66597, BEMPENB);
+
+ if (mask0 & VBINT) {
+ r8a66597_write(r8a66597, 0xffff & ~VBINT,
+ INTSTS0);
+ r8a66597_start_xclock(r8a66597);
+
+ /* start vbus sampling */
+ r8a66597->old_vbus = r8a66597_read(r8a66597, INTSTS0)
+ & VBSTS;
+ r8a66597->scount = R8A66597_MAX_SAMPLING;
+
+ mod_timer(&r8a66597->timer,
+ jiffies + msecs_to_jiffies(50));
+ }
+ if (intsts0 & DVSQ)
+ irq_device_state(r8a66597);
+
+ if ((intsts0 & BRDY) && (intenb0 & BRDYE)
+ && (brdysts & brdyenb))
+ irq_pipe_ready(r8a66597, brdysts, brdyenb);
+ if ((intsts0 & BEMP) && (intenb0 & BEMPE)
+ && (bempsts & bempenb))
+ irq_pipe_empty(r8a66597, bempsts, bempenb);
+
+ if (intsts0 & CTRT)
+ irq_control_stage(r8a66597);
+ }
+
+ r8a66597_write(r8a66597, savepipe, CFIFOSEL);
+
+ spin_unlock(&r8a66597->lock);
+ return IRQ_HANDLED;
+}
+
+static void r8a66597_timer(unsigned long _r8a66597)
+{
+ struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
+ unsigned long flags;
+ u16 tmp;
+
+ spin_lock_irqsave(&r8a66597->lock, flags);
+ tmp = r8a66597_read(r8a66597, SYSCFG0);
+ if (r8a66597->scount > 0) {
+ tmp = r8a66597_read(r8a66597, INTSTS0) & VBSTS;
+ if (tmp == r8a66597->old_vbus) {
+ r8a66597->scount--;
+ if (r8a66597->scount == 0) {
+ if (tmp == VBSTS)
+ r8a66597_usb_connect(r8a66597);
+ else
+ r8a66597_usb_disconnect(r8a66597);
+ } else {
+ mod_timer(&r8a66597->timer,
+ jiffies + msecs_to_jiffies(50));
+ }
+ } else {
+ r8a66597->scount = R8A66597_MAX_SAMPLING;
+ r8a66597->old_vbus = tmp;
+ mod_timer(&r8a66597->timer,
+ jiffies + msecs_to_jiffies(50));
+ }
+ }
+ spin_unlock_irqrestore(&r8a66597->lock, flags);
+}
+
+/*-------------------------------------------------------------------------*/
+static int r8a66597_enable(struct usb_ep *_ep,
+ const struct usb_endpoint_descriptor *desc)
+{
+ struct r8a66597_ep *ep;
+
+ ep = container_of(_ep, struct r8a66597_ep, ep);
+ return alloc_pipe_config(ep, desc);
+}
+
+static int r8a66597_disable(struct usb_ep *_ep)
+{
+ struct r8a66597_ep *ep;
+ struct r8a66597_request *req;
+ unsigned long flags;
+
+ ep = container_of(_ep, struct r8a66597_ep, ep);
+ BUG_ON(!ep);
+
+ while (!list_empty(&ep->queue)) {
+ req = get_request_from_ep(ep);
+ spin_lock_irqsave(&ep->r8a66597->lock, flags);
+ transfer_complete(ep, req, -ECONNRESET);
+ spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
+ }
+
+ pipe_irq_disable(ep->r8a66597, ep->pipenum);
+ return free_pipe_config(ep);
+}
+
+static struct usb_request *r8a66597_alloc_request(struct usb_ep *_ep,
+ gfp_t gfp_flags)
+{
+ struct r8a66597_request *req;
+
+ req = kzalloc(sizeof(struct r8a66597_request), gfp_flags);
+ if (!req)
+ return NULL;
+
+ INIT_LIST_HEAD(&req->queue);
+
+ return &req->req;
+}
+
+static void r8a66597_free_request(struct usb_ep *_ep, struct usb_request *_req)
+{
+ struct r8a66597_request *req;
+
+ req = container_of(_req, struct r8a66597_request, req);
+ kfree(req);
+}
+
+static int r8a66597_queue(struct usb_ep *_ep, struct usb_request *_req,
+ gfp_t gfp_flags)
+{
+ struct r8a66597_ep *ep;
+ struct r8a66597_request *req;
+ unsigned long flags;
+ int request = 0;
+
+ ep = container_of(_ep, struct r8a66597_ep, ep);
+ req = container_of(_req, struct r8a66597_request, req);
+
+ if (ep->r8a66597->gadget.speed == USB_SPEED_UNKNOWN)
+ return -ESHUTDOWN;
+
+ spin_lock_irqsave(&ep->r8a66597->lock, flags);
+
+ if (list_empty(&ep->queue))
+ request = 1;
+
+ list_add_tail(&req->queue, &ep->queue);
+ req->req.actual = 0;
+ req->req.status = -EINPROGRESS;
+
+ if (ep->desc == NULL) /* control */
+ start_ep0(ep, req);
+ else {
+ if (request && !ep->busy)
+ start_packet(ep, req);
+ }
+
+ spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
+
+ return 0;
+}
+
+static int r8a66597_dequeue(struct usb_ep *_ep, struct usb_request *_req)
+{
+ struct r8a66597_ep *ep;
+ struct r8a66597_request *req;
+ unsigned long flags;
+
+ ep = container_of(_ep, struct r8a66597_ep, ep);
+ req = container_of(_req, struct r8a66597_request, req);
+
+ spin_lock_irqsave(&ep->r8a66597->lock, flags);
+ if (!list_empty(&ep->queue))
+ transfer_complete(ep, req, -ECONNRESET);
+ spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
+
+ return 0;
+}
+
+static int r8a66597_set_halt(struct usb_ep *_ep, int value)
+{
+ struct r8a66597_ep *ep;
+ struct r8a66597_request *req;
+ unsigned long flags;
+ int ret = 0;
+
+ ep = container_of(_ep, struct r8a66597_ep, ep);
+ req = get_request_from_ep(ep);
+
+ spin_lock_irqsave(&ep->r8a66597->lock, flags);
+ if (!list_empty(&ep->queue)) {
+ ret = -EAGAIN;
+ goto out;
+ }
+ if (value) {
+ ep->busy = 1;
+ pipe_stall(ep->r8a66597, ep->pipenum);
+ } else {
+ ep->busy = 0;
+ ep->wedge = 0;
+ pipe_stop(ep->r8a66597, ep->pipenum);
+ }
+
+out:
+ spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
+ return ret;
+}
+
+static int r8a66597_set_wedge(struct usb_ep *_ep)
+{
+ struct r8a66597_ep *ep;
+ unsigned long flags;
+
+ ep = container_of(_ep, struct r8a66597_ep, ep);
+
+ if (!ep || !ep->desc)
+ return -EINVAL;
+
+ spin_lock_irqsave(&ep->r8a66597->lock, flags);
+ ep->wedge = 1;
+ spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
+
+ return usb_ep_set_halt(_ep);
+}
+
+static void r8a66597_fifo_flush(struct usb_ep *_ep)
+{
+ struct r8a66597_ep *ep;
+ unsigned long flags;
+
+ ep = container_of(_ep, struct r8a66597_ep, ep);
+ spin_lock_irqsave(&ep->r8a66597->lock, flags);
+ if (list_empty(&ep->queue) && !ep->busy) {
+ pipe_stop(ep->r8a66597, ep->pipenum);
+ r8a66597_bclr(ep->r8a66597, BCLR, ep->fifoctr);
+ }
+ spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
+}
+
+static struct usb_ep_ops r8a66597_ep_ops = {
+ .enable = r8a66597_enable,
+ .disable = r8a66597_disable,
+
+ .alloc_request = r8a66597_alloc_request,
+ .free_request = r8a66597_free_request,
+
+ .queue = r8a66597_queue,
+ .dequeue = r8a66597_dequeue,
+
+ .set_halt = r8a66597_set_halt,
+ .set_wedge = r8a66597_set_wedge,
+ .fifo_flush = r8a66597_fifo_flush,
+};
+
+/*-------------------------------------------------------------------------*/
+static struct r8a66597 *the_controller;
+
+int usb_gadget_register_driver(struct usb_gadget_driver *driver)
+{
+ struct r8a66597 *r8a66597 = the_controller;
+ int retval;
+
+ if (!driver
+ || driver->speed != USB_SPEED_HIGH
+ || !driver->bind
+ || !driver->setup)
+ return -EINVAL;
+ if (!r8a66597)
+ return -ENODEV;
+ if (r8a66597->driver)
+ return -EBUSY;
+
+ /* hook up the driver */
+ driver->driver.bus = NULL;
+ r8a66597->driver = driver;
+ r8a66597->gadget.dev.driver = &driver->driver;
+
+ retval = device_add(&r8a66597->gadget.dev);
+ if (retval) {
+ printk(KERN_ERR "device_add error (%d)\n", retval);
+ goto error;
+ }
+
+ retval = driver->bind(&r8a66597->gadget);
+ if (retval) {
+ printk(KERN_ERR "bind to driver error (%d)\n", retval);
+ device_del(&r8a66597->gadget.dev);
+ goto error;
+ }
+
+ r8a66597_bset(r8a66597, VBSE, INTENB0);
+ if (r8a66597_read(r8a66597, INTSTS0) & VBSTS) {
+ r8a66597_start_xclock(r8a66597);
+ /* start vbus sampling */
+ r8a66597->old_vbus = r8a66597_read(r8a66597,
+ INTSTS0) & VBSTS;
+ r8a66597->scount = R8A66597_MAX_SAMPLING;
+ mod_timer(&r8a66597->timer, jiffies + msecs_to_jiffies(50));
+ }
+
+ return 0;
+
+error:
+ r8a66597->driver = NULL;
+ r8a66597->gadget.dev.driver = NULL;
+
+ return retval;
+}
+EXPORT_SYMBOL(usb_gadget_register_driver);
+
+int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
+{
+ struct r8a66597 *r8a66597 = the_controller;
+ unsigned long flags;
+
+ if (driver != r8a66597->driver || !driver->unbind)
+ return -EINVAL;
+
+ spin_lock_irqsave(&r8a66597->lock, flags);
+ if (r8a66597->gadget.speed != USB_SPEED_UNKNOWN)
+ r8a66597_usb_disconnect(r8a66597);
+ spin_unlock_irqrestore(&r8a66597->lock, flags);
+
+ r8a66597_bclr(r8a66597, VBSE, INTENB0);
+
+ driver->unbind(&r8a66597->gadget);
+
+ init_controller(r8a66597);
+ disable_controller(r8a66597);
+
+ device_del(&r8a66597->gadget.dev);
+ r8a66597->driver = NULL;
+ return 0;
+}
+EXPORT_SYMBOL(usb_gadget_unregister_driver);
+
+/*-------------------------------------------------------------------------*/
+static int r8a66597_get_frame(struct usb_gadget *_gadget)
+{
+ struct r8a66597 *r8a66597 = gadget_to_r8a66597(_gadget);
+ return r8a66597_read(r8a66597, FRMNUM) & 0x03FF;
+}
+
+static struct usb_gadget_ops r8a66597_gadget_ops = {
+ .get_frame = r8a66597_get_frame,
+};
+
+static int __exit r8a66597_remove(struct platform_device *pdev)
+{
+ struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev);
+
+ del_timer_sync(&r8a66597->timer);
+ iounmap((void *)r8a66597->reg);
+ free_irq(platform_get_irq(pdev, 0), r8a66597);
+ r8a66597_free_request(&r8a66597->ep[0].ep, r8a66597->ep0_req);
+#ifdef CONFIG_HAVE_CLK
+ if (r8a66597->pdata->on_chip) {
+ clk_disable(r8a66597->clk);
+ clk_put(r8a66597->clk);
+ }
+#endif
+ kfree(r8a66597);
+ return 0;
+}
+
+static void nop_completion(struct usb_ep *ep, struct usb_request *r)
+{
+}
+
+static int __init r8a66597_probe(struct platform_device *pdev)
+{
+#ifdef CONFIG_HAVE_CLK
+ char clk_name[8];
+#endif
+ struct resource *res, *ires;
+ int irq;
+ void __iomem *reg = NULL;
+ struct r8a66597 *r8a66597 = NULL;
+ int ret = 0;
+ int i;
+ unsigned long irq_trigger;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ ret = -ENODEV;
+ printk(KERN_ERR "platform_get_resource error.\n");
+ goto clean_up;
+ }
+
+ ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ irq = ires->start;
+ irq_trigger = ires->flags & IRQF_TRIGGER_MASK;
+
+ if (irq < 0) {
+ ret = -ENODEV;
+ printk(KERN_ERR "platform_get_irq error.\n");
+ goto clean_up;
+ }
+
+ reg = ioremap(res->start, resource_size(res));
+ if (reg == NULL) {
+ ret = -ENOMEM;
+ printk(KERN_ERR "ioremap error.\n");
+ goto clean_up;
+ }
+
+ /* initialize ucd */
+ r8a66597 = kzalloc(sizeof(struct r8a66597), GFP_KERNEL);
+ if (r8a66597 == NULL) {
+ printk(KERN_ERR "kzalloc error\n");
+ goto clean_up;
+ }
+
+ spin_lock_init(&r8a66597->lock);
+ dev_set_drvdata(&pdev->dev, r8a66597);
+ r8a66597->pdata = pdev->dev.platform_data;
+ r8a66597->irq_sense_low = irq_trigger == IRQF_TRIGGER_LOW;
+
+ r8a66597->gadget.ops = &r8a66597_gadget_ops;
+ device_initialize(&r8a66597->gadget.dev);
+ dev_set_name(&r8a66597->gadget.dev, "gadget");
+ r8a66597->gadget.is_dualspeed = 1;
+ r8a66597->gadget.dev.parent = &pdev->dev;
+ r8a66597->gadget.dev.dma_mask = pdev->dev.dma_mask;
+ r8a66597->gadget.dev.release = pdev->dev.release;
+ r8a66597->gadget.name = udc_name;
+
+ init_timer(&r8a66597->timer);
+ r8a66597->timer.function = r8a66597_timer;
+ r8a66597->timer.data = (unsigned long)r8a66597;
+ r8a66597->reg = (unsigned long)reg;
+
+#ifdef CONFIG_HAVE_CLK
+ if (r8a66597->pdata->on_chip) {
+ snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id);
+ r8a66597->clk = clk_get(&pdev->dev, clk_name);
+ if (IS_ERR(r8a66597->clk)) {
+ dev_err(&pdev->dev, "cannot get clock \"%s\"\n",
+ clk_name);
+ ret = PTR_ERR(r8a66597->clk);
+ goto clean_up;
+ }
+ clk_enable(r8a66597->clk);
+ }
+#endif
+
+ disable_controller(r8a66597); /* make sure controller is disabled */
+
+ ret = request_irq(irq, r8a66597_irq, IRQF_DISABLED | IRQF_SHARED,
+ udc_name, r8a66597);
+ if (ret < 0) {
+ printk(KERN_ERR "request_irq error (%d)\n", ret);
+ goto clean_up2;
+ }
+
+ INIT_LIST_HEAD(&r8a66597->gadget.ep_list);
+ r8a66597->gadget.ep0 = &r8a66597->ep[0].ep;
+ INIT_LIST_HEAD(&r8a66597->gadget.ep0->ep_list);
+ for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) {
+ struct r8a66597_ep *ep = &r8a66597->ep[i];
+
+ if (i != 0) {
+ INIT_LIST_HEAD(&r8a66597->ep[i].ep.ep_list);
+ list_add_tail(&r8a66597->ep[i].ep.ep_list,
+ &r8a66597->gadget.ep_list);
+ }
+ ep->r8a66597 = r8a66597;
+ INIT_LIST_HEAD(&ep->queue);
+ ep->ep.name = r8a66597_ep_name[i];
+ ep->ep.ops = &r8a66597_ep_ops;
+ ep->ep.maxpacket = 512;
+ }
+ r8a66597->ep[0].ep.maxpacket = 64;
+ r8a66597->ep[0].pipenum = 0;
+ r8a66597->ep[0].fifoaddr = CFIFO;
+ r8a66597->ep[0].fifosel = CFIFOSEL;
+ r8a66597->ep[0].fifoctr = CFIFOCTR;
+ r8a66597->ep[0].fifotrn = 0;
+ r8a66597->ep[0].pipectr = get_pipectr_addr(0);
+ r8a66597->pipenum2ep[0] = &r8a66597->ep[0];
+ r8a66597->epaddr2ep[0] = &r8a66597->ep[0];
+
+ the_controller = r8a66597;
+
+ r8a66597->ep0_req = r8a66597_alloc_request(&r8a66597->ep[0].ep,
+ GFP_KERNEL);
+ if (r8a66597->ep0_req == NULL)
+ goto clean_up3;
+ r8a66597->ep0_req->complete = nop_completion;
+
+ init_controller(r8a66597);
+
+ dev_info(&pdev->dev, "version %s\n", DRIVER_VERSION);
+ return 0;
+
+clean_up3:
+ free_irq(irq, r8a66597);
+clean_up2:
+#ifdef CONFIG_HAVE_CLK
+ if (r8a66597->pdata->on_chip) {
+ clk_disable(r8a66597->clk);
+ clk_put(r8a66597->clk);
+ }
+#endif
+clean_up:
+ if (r8a66597) {
+ if (r8a66597->ep0_req)
+ r8a66597_free_request(&r8a66597->ep[0].ep,
+ r8a66597->ep0_req);
+ kfree(r8a66597);
+ }
+ if (reg)
+ iounmap(reg);
+
+ return ret;
+}
+
+/*-------------------------------------------------------------------------*/
+static struct platform_driver r8a66597_driver = {
+ .remove = __exit_p(r8a66597_remove),
+ .driver = {
+ .name = (char *) udc_name,
+ },
+};
+
+static int __init r8a66597_udc_init(void)
+{
+ return platform_driver_probe(&r8a66597_driver, r8a66597_probe);
+}
+module_init(r8a66597_udc_init);
+
+static void __exit r8a66597_udc_cleanup(void)
+{
+ platform_driver_unregister(&r8a66597_driver);
+}
+module_exit(r8a66597_udc_cleanup);
+
+MODULE_DESCRIPTION("R8A66597 USB gadget driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Yoshihiro Shimoda");
+
diff --git a/drivers/usb/gadget/r8a66597-udc.h b/drivers/usb/gadget/r8a66597-udc.h
new file mode 100644
index 00000000000..03087e7b919
--- /dev/null
+++ b/drivers/usb/gadget/r8a66597-udc.h
@@ -0,0 +1,256 @@
+/*
+ * R8A66597 UDC
+ *
+ * Copyright (C) 2007-2009 Renesas Solutions Corp.
+ *
+ * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * 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 St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifndef __R8A66597_H__
+#define __R8A66597_H__
+
+#ifdef CONFIG_HAVE_CLK
+#include <linux/clk.h>
+#endif
+
+#include <linux/usb/r8a66597.h>
+
+#define R8A66597_MAX_SAMPLING 10
+
+#define R8A66597_MAX_NUM_PIPE 8
+#define R8A66597_MAX_NUM_BULK 3
+#define R8A66597_MAX_NUM_ISOC 2
+#define R8A66597_MAX_NUM_INT 2
+
+#define R8A66597_BASE_PIPENUM_BULK 3
+#define R8A66597_BASE_PIPENUM_ISOC 1
+#define R8A66597_BASE_PIPENUM_INT 6
+
+#define R8A66597_BASE_BUFNUM 6
+#define R8A66597_MAX_BUFNUM 0x4F
+
+#define is_bulk_pipe(pipenum) \
+ ((pipenum >= R8A66597_BASE_PIPENUM_BULK) && \
+ (pipenum < (R8A66597_BASE_PIPENUM_BULK + R8A66597_MAX_NUM_BULK)))
+#define is_interrupt_pipe(pipenum) \
+ ((pipenum >= R8A66597_BASE_PIPENUM_INT) && \
+ (pipenum < (R8A66597_BASE_PIPENUM_INT + R8A66597_MAX_NUM_INT)))
+#define is_isoc_pipe(pipenum) \
+ ((pipenum >= R8A66597_BASE_PIPENUM_ISOC) && \
+ (pipenum < (R8A66597_BASE_PIPENUM_ISOC + R8A66597_MAX_NUM_ISOC)))
+
+struct r8a66597_pipe_info {
+ u16 pipe;
+ u16 epnum;
+ u16 maxpacket;
+ u16 type;
+ u16 interval;
+ u16 dir_in;
+};
+
+struct r8a66597_request {
+ struct usb_request req;
+ struct list_head queue;
+};
+
+struct r8a66597_ep {
+ struct usb_ep ep;
+ struct r8a66597 *r8a66597;
+
+ struct list_head queue;
+ unsigned busy:1;
+ unsigned wedge:1;
+ unsigned internal_ccpl:1; /* use only control */
+
+ /* this member can able to after r8a66597_enable */
+ unsigned use_dma:1;
+ u16 pipenum;
+ u16 type;
+ const struct usb_endpoint_descriptor *desc;
+ /* register address */
+ unsigned char fifoaddr;
+ unsigned char fifosel;
+ unsigned char fifoctr;
+ unsigned char fifotrn;
+ unsigned char pipectr;
+};
+
+struct r8a66597 {
+ spinlock_t lock;
+ unsigned long reg;
+
+#ifdef CONFIG_HAVE_CLK
+ struct clk *clk;
+#endif
+ struct r8a66597_platdata *pdata;
+
+ struct usb_gadget gadget;
+ struct usb_gadget_driver *driver;
+
+ struct r8a66597_ep ep[R8A66597_MAX_NUM_PIPE];
+ struct r8a66597_ep *pipenum2ep[R8A66597_MAX_NUM_PIPE];
+ struct r8a66597_ep *epaddr2ep[16];
+
+ struct timer_list timer;
+ struct usb_request *ep0_req; /* for internal request */
+ u16 ep0_data; /* for internal request */
+ u16 old_vbus;
+ u16 scount;
+ u16 old_dvsq;
+
+ /* pipe config */
+ unsigned char bulk;
+ unsigned char interrupt;
+ unsigned char isochronous;
+ unsigned char num_dma;
+
+ unsigned irq_sense_low:1;
+};
+
+#define gadget_to_r8a66597(_gadget) \
+ container_of(_gadget, struct r8a66597, gadget)
+#define r8a66597_to_gadget(r8a66597) (&r8a66597->gadget)
+
+static inline u16 r8a66597_read(struct r8a66597 *r8a66597, unsigned long offset)
+{
+ return inw(r8a66597->reg + offset);
+}
+
+static inline void r8a66597_read_fifo(struct r8a66597 *r8a66597,
+ unsigned long offset, u16 *buf,
+ int len)
+{
+ if (r8a66597->pdata->on_chip) {
+ unsigned long fifoaddr = r8a66597->reg + offset;
+ unsigned long count;
+ union {
+ unsigned long dword;
+ unsigned char byte[4];
+ } data;
+ unsigned char *pb;
+ int i;
+
+ count = len / 4;
+ insl(fifoaddr, buf, count);
+
+ if (len & 0x00000003) {
+ data.dword = inl(fifoaddr);
+ pb = (unsigned char *)buf + count * 4;
+ for (i = 0; i < (len & 0x00000003); i++)
+ pb[i] = data.byte[i];
+ }
+ } else {
+ len = (len + 1) / 2;
+ insw(r8a66597->reg + offset, buf, len);
+ }
+}
+
+static inline void r8a66597_write(struct r8a66597 *r8a66597, u16 val,
+ unsigned long offset)
+{
+ outw(val, r8a66597->reg + offset);
+}
+
+static inline void r8a66597_write_fifo(struct r8a66597 *r8a66597,
+ unsigned long offset, u16 *buf,
+ int len)
+{
+ unsigned long fifoaddr = r8a66597->reg + offset;
+
+ if (r8a66597->pdata->on_chip) {
+ unsigned long count;
+ unsigned char *pb;
+ int i;
+
+ count = len / 4;
+ outsl(fifoaddr, buf, count);
+
+ if (len & 0x00000003) {
+ pb = (unsigned char *)buf + count * 4;
+ for (i = 0; i < (len & 0x00000003); i++) {
+ if (r8a66597_read(r8a66597, CFIFOSEL) & BIGEND)
+ outb(pb[i], fifoaddr + i);
+ else
+ outb(pb[i], fifoaddr + 3 - i);
+ }
+ }
+ } else {
+ int odd = len & 0x0001;
+
+ len = len / 2;
+ outsw(fifoaddr, buf, len);
+ if (unlikely(odd)) {
+ buf = &buf[len];
+ outb((unsigned char)*buf, fifoaddr);
+ }
+ }
+}
+
+static inline void r8a66597_mdfy(struct r8a66597 *r8a66597,
+ u16 val, u16 pat, unsigned long offset)
+{
+ u16 tmp;
+ tmp = r8a66597_read(r8a66597, offset);
+ tmp = tmp & (~pat);
+ tmp = tmp | val;
+ r8a66597_write(r8a66597, tmp, offset);
+}
+
+static inline u16 get_xtal_from_pdata(struct r8a66597_platdata *pdata)
+{
+ u16 clock = 0;
+
+ switch (pdata->xtal) {
+ case R8A66597_PLATDATA_XTAL_12MHZ:
+ clock = XTAL12;
+ break;
+ case R8A66597_PLATDATA_XTAL_24MHZ:
+ clock = XTAL24;
+ break;
+ case R8A66597_PLATDATA_XTAL_48MHZ:
+ clock = XTAL48;
+ break;
+ default:
+ printk(KERN_ERR "r8a66597: platdata clock is wrong.\n");
+ break;
+ }
+
+ return clock;
+}
+
+#define r8a66597_bclr(r8a66597, val, offset) \
+ r8a66597_mdfy(r8a66597, 0, val, offset)
+#define r8a66597_bset(r8a66597, val, offset) \
+ r8a66597_mdfy(r8a66597, val, 0, offset)
+
+#define get_pipectr_addr(pipenum) (PIPE1CTR + (pipenum - 1) * 2)
+
+#define enable_irq_ready(r8a66597, pipenum) \
+ enable_pipe_irq(r8a66597, pipenum, BRDYENB)
+#define disable_irq_ready(r8a66597, pipenum) \
+ disable_pipe_irq(r8a66597, pipenum, BRDYENB)
+#define enable_irq_empty(r8a66597, pipenum) \
+ enable_pipe_irq(r8a66597, pipenum, BEMPENB)
+#define disable_irq_empty(r8a66597, pipenum) \
+ disable_pipe_irq(r8a66597, pipenum, BEMPENB)
+#define enable_irq_nrdy(r8a66597, pipenum) \
+ enable_pipe_irq(r8a66597, pipenum, NRDYENB)
+#define disable_irq_nrdy(r8a66597, pipenum) \
+ disable_pipe_irq(r8a66597, pipenum, NRDYENB)
+
+#endif /* __R8A66597_H__ */
+
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-22 03:27:52 +0000