From: Lukasz Majewski <l.majewski@samsung.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 1/2] usb:gadget: Linux USB Gadget framework
Date: Tue, 05 Jul 2011 15:58:02 +0200 [thread overview]
Message-ID: <1309874283-4862-2-git-send-email-l.majewski@samsung.com> (raw)
In-Reply-To: <1309874283-4862-1-git-send-email-l.majewski@samsung.com>
Support for Linux USB Gadget framework. Due to this commit
Linux kernel's and U-boot's implementations are now alike.
This should facilitate using USB gadgets from Linux and U-boot
interchangeably.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
---
arch/arm/include/asm/arch-s5pc1xx/hs_otg.h | 32 +
arch/arm/include/asm/arch-s5pc1xx/regs-otg.h | 309 ++++++
board/samsung/goni/goni.c | 71 ++
drivers/usb/gadget/Makefile | 6 +-
drivers/usb/gadget/s3c_udc_otg.c | 878 ++++++++++++++++
drivers/usb/gadget/s3c_udc_otg_xfer_dma.c | 1406 ++++++++++++++++++++++++++
include/configs/s5p_goni.h | 3 +
include/usb/lin_gadget_compat.h | 69 ++
include/usb/s3c_udc.h | 160 +++
9 files changed, 2931 insertions(+), 3 deletions(-)
create mode 100644 arch/arm/include/asm/arch-s5pc1xx/hs_otg.h
create mode 100644 arch/arm/include/asm/arch-s5pc1xx/regs-otg.h
create mode 100644 drivers/usb/gadget/s3c_udc_otg.c
create mode 100644 drivers/usb/gadget/s3c_udc_otg_xfer_dma.c
create mode 100644 include/usb/lin_gadget_compat.h
create mode 100644 include/usb/s3c_udc.h
diff --git a/arch/arm/include/asm/arch-s5pc1xx/hs_otg.h b/arch/arm/include/asm/arch-s5pc1xx/hs_otg.h
new file mode 100644
index 0000000..d68db04
--- /dev/null
+++ b/arch/arm/include/asm/arch-s5pc1xx/hs_otg.h
@@ -0,0 +1,32 @@
+/*
+ * (C) Copyright 2009 SAMSUNG Electronics
+ * Minkyu Kang <mk7.kang@samsung.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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#ifndef __ASM_ARCH_HSOTG_H_
+#define __ASM_ARCH_HSOTG_H_
+
+#ifndef __ASSEMBLY__
+struct s3c_plat_otg_data {
+ int (*phy_control)(int on);
+ unsigned int regs_phy;
+ unsigned int regs_otg;
+};
+
+#endif /* __ASSEMBLY__ */
+#endif
diff --git a/arch/arm/include/asm/arch-s5pc1xx/regs-otg.h b/arch/arm/include/asm/arch-s5pc1xx/regs-otg.h
new file mode 100644
index 0000000..eed1393
--- /dev/null
+++ b/arch/arm/include/asm/arch-s5pc1xx/regs-otg.h
@@ -0,0 +1,309 @@
+/* linux/arch/arm/plat-s3c/include/plat/regs-otg.h
+ *
+ * Copyright (C) 2004 Herbert Poetzl <herbert@13thfloor.at>
+ *
+ * This include file 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; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+#ifndef __ASM_ARCH_REGS_USB_OTG_HS_H
+#define __ASM_ARCH_REGS_USB_OTG_HS_H
+
+/*
+ * USB2.0 HS OTG
+ */
+#define S5PC100_OTG_BASE 0xED200000
+#define S5PC100_PHY_BASE 0xED300000
+
+#define S5PC110_OTG_BASE 0xEC000000
+#define S5PC110_PHY_BASE 0xEC100000
+
+#define S5P_USB_PHY_CONTROL 0xE010E80C
+/* USB2.0 OTG Controller register */
+#define S3C_USBOTG_PHYREG(x) (((u32)regs_phy) + (x))
+#define S3C_USBOTG_PHYPWR S3C_USBOTG_PHYREG(0x0)
+#define S3C_USBOTG_PHYCLK S3C_USBOTG_PHYREG(0x4)
+#define S3C_USBOTG_RSTCON S3C_USBOTG_PHYREG(0x8)
+
+
+/* USB2.0 OTG Controller register */
+#define S3C_USBOTGREG(x) (((u32)regs_otg) + (x))
+/*========================================================================== */
+/* Core Global Registers */
+/* OTG Control & Status */
+#define S3C_UDC_OTG_GOTGCTL S3C_USBOTGREG(0x000)
+/* OTG Interrupt */
+#define S3C_UDC_OTG_GOTGINT S3C_USBOTGREG(0x004)
+/* Core AHB Configuration */
+#define S3C_UDC_OTG_GAHBCFG S3C_USBOTGREG(0x008)
+/* Core USB Configuration */
+#define S3C_UDC_OTG_GUSBCFG S3C_USBOTGREG(0x00C)
+/* Core Reset */
+#define S3C_UDC_OTG_GRSTCTL S3C_USBOTGREG(0x010)
+/* Core Interrupt */
+#define S3C_UDC_OTG_GINTSTS S3C_USBOTGREG(0x014)
+/* Core Interrupt Mask */
+#define S3C_UDC_OTG_GINTMSK S3C_USBOTGREG(0x018)
+/* Receive Status Debug Read/Status Read */
+#define S3C_UDC_OTG_GRXSTSR S3C_USBOTGREG(0x01C)
+/* Receive Status Debug Pop/Status Pop */
+#define S3C_UDC_OTG_GRXSTSP S3C_USBOTGREG(0x020)
+/* Receive FIFO Size */
+#define S3C_UDC_OTG_GRXFSIZ S3C_USBOTGREG(0x024)
+/* Non-Periodic Transmit FIFO Size */
+#define S3C_UDC_OTG_GNPTXFSIZ S3C_USBOTGREG(0x028)
+/* Non-Periodic Transmit FIFO/Queue Status */
+#define S3C_UDC_OTG_GNPTXSTS S3C_USBOTGREG(0x02C)
+/* Host Periodic Transmit FIFO Size */
+#define S3C_UDC_OTG_HPTXFSIZ S3C_USBOTGREG(0x100)
+/* Device IN EP Transmit FIFO Size Register */
+#define S3C_UDC_OTG_DIEPTXF(n) S3C_USBOTGREG(0x104 + ((n)-1)*0x4)
+
+/*=========================================================================== */
+/* Host Mode Registers */
+/*------------------------------------------------ */
+/* Host Global Registers */
+/* Host Configuration */
+#define S3C_UDC_OTG_HCFG S3C_USBOTGREG(0x400)
+/* Host Frame Interval */
+#define S3C_UDC_OTG_HFIR S3C_USBOTGREG(0x404)
+/* Host Frame Number/Frame Time Remaining */
+#define S3C_UDC_OTG_HFNUM S3C_USBOTGREG(0x408)
+/* Host Periodic Transmit FIFO/Queue Status */
+#define S3C_UDC_OTG_HPTXSTS S3C_USBOTGREG(0x410)
+/* Host All Channels Interrupt */
+#define S3C_UDC_OTG_HAINT S3C_USBOTGREG(0x414)
+/* Host All Channels Interrupt Mask */
+#define S3C_UDC_OTG_HAINTMSK S3C_USBOTGREG(0x418)
+
+/*------------------------------------------------ */
+/* Host Port Control & Status Registers */
+/* Host Port Control & Status */
+#define S3C_UDC_OTG_HPRT S3C_USBOTGREG(0x440)
+/*------------------------------------------------ */
+/* Host Channel-Specific Registers */
+/* Host Channel-0 Characteristics */
+#define S3C_UDC_OTG_HCCHAR0 S3C_USBOTGREG(0x500)
+/* Host Channel-0 Split Control */
+#define S3C_UDC_OTG_HCSPLT0 S3C_USBOTGREG(0x504)
+/* Host Channel-0 Interrupt */
+#define S3C_UDC_OTG_HCINT0 S3C_USBOTGREG(0x508)
+/* Host Channel-0 Interrupt Mask */
+#define S3C_UDC_OTG_HCINTMSK0 S3C_USBOTGREG(0x50C)
+/* Host Channel-0 Transfer Size */
+#define S3C_UDC_OTG_HCTSIZ0 S3C_USBOTGREG(0x510)
+/* Host Channel-0 DMA Address */
+#define S3C_UDC_OTG_HCDMA0 S3C_USBOTGREG(0x514)
+/*=========================================================================== */
+/* Device Mode Registers */
+/*------------------------------------------------ */
+/* Device Global Registers */
+/* Device Configuration */
+#define S3C_UDC_OTG_DCFG S3C_USBOTGREG(0x800)
+#define S3C_UDC_OTG_DCTL S3C_USBOTGREG(0x804) /* Device Control */
+#define S3C_UDC_OTG_DSTS S3C_USBOTGREG(0x808) /* Device Status */
+/* Device IN Endpoint Common Interrupt Mask */
+#define S3C_UDC_OTG_DIEPMSK S3C_USBOTGREG(0x810)
+/* Device OUT Endpoint Common Interrupt Mask */
+#define S3C_UDC_OTG_DOEPMSK S3C_USBOTGREG(0x814)
+/* Device All Endpoints Interrupt */
+#define S3C_UDC_OTG_DAINT S3C_USBOTGREG(0x818)
+/* Device All Endpoints Interrupt Mask */
+#define S3C_UDC_OTG_DAINTMSK S3C_USBOTGREG(0x81C)
+/* Device IN Token Sequence Learning Queue Read 1 */
+#define S3C_UDC_OTG_DTKNQR1 S3C_USBOTGREG(0x820)
+/* Device IN Token Sequence Learning Queue Read 2 */
+#define S3C_UDC_OTG_DTKNQR2 S3C_USBOTGREG(0x824)
+/* Device VBUS Discharge Time */
+#define S3C_UDC_OTG_DVBUSDIS S3C_USBOTGREG(0x828)
+/* Device VBUS Pulsing Time */
+#define S3C_UDC_OTG_DVBUSPULSE S3C_USBOTGREG(0x82C)
+/* Device IN Token Sequence Learning Queue Read 3 */
+#define S3C_UDC_OTG_DTKNQR3 S3C_USBOTGREG(0x830)
+/* Device IN Token Sequence Learning Queue Read 4 */
+#define S3C_UDC_OTG_DTKNQR4 S3C_USBOTGREG(0x834)
+
+
+/*------------------------------------------------ */
+/* Device Logical IN Endpoint-Specific Registers */
+/* Device IN Endpoint n Control */
+#define S3C_UDC_OTG_DIEPCTL(n) S3C_USBOTGREG(0x900 + n*0x20)
+/* Device IN Endpoint n Interrupt */
+#define S3C_UDC_OTG_DIEPINT(n) S3C_USBOTGREG(0x908 + n*0x20)
+/* Device IN Endpoint n Transfer Size */
+#define S3C_UDC_OTG_DIEPTSIZ(n) S3C_USBOTGREG(0x910 + n*0x20)
+/* Device IN Endpoint n DMA Address */
+#define S3C_UDC_OTG_DIEPDMA(n) S3C_USBOTGREG(0x914 + n*0x20)
+
+/*------------------------------------------------ */
+/* Device Logical OUT Endpoint-Specific Registers */
+/* Device OUT Endpoint n Control */
+#define S3C_UDC_OTG_DOEPCTL(n) S3C_USBOTGREG(0xB00 + n*0x20)
+/* Device OUT Endpoint n Interrupt */
+#define S3C_UDC_OTG_DOEPINT(n) S3C_USBOTGREG(0xB08 + n*0x20)
+/* Device OUT Endpoint n Transfer Size */
+#define S3C_UDC_OTG_DOEPTSIZ(n) S3C_USBOTGREG(0xB10 + n*0x20)
+/* Device OUT Endpoint n DMA Address */
+#define S3C_UDC_OTG_DOEPDMA(n) S3C_USBOTGREG(0xB14 + n*0x20)
+
+/*------------------------------------------------ */
+/* Endpoint FIFO address */
+#define S3C_UDC_OTG_EP0_FIFO S3C_USBOTGREG(0x1000)
+#define S3C_UDC_OTG_EP1_FIFO S3C_USBOTGREG(0x2000)
+#define S3C_UDC_OTG_EP2_FIFO S3C_USBOTGREG(0x3000)
+#define S3C_UDC_OTG_EP3_FIFO S3C_USBOTGREG(0x4000)
+#define S3C_UDC_OTG_EP4_FIFO S3C_USBOTGREG(0x5000)
+#define S3C_UDC_OTG_EP5_FIFO S3C_USBOTGREG(0x6000)
+#define S3C_UDC_OTG_EP6_FIFO S3C_USBOTGREG(0x7000)
+#define S3C_UDC_OTG_EP7_FIFO S3C_USBOTGREG(0x8000)
+#define S3C_UDC_OTG_EP8_FIFO S3C_USBOTGREG(0x9000)
+#define S3C_UDC_OTG_EP9_FIFO S3C_USBOTGREG(0xA000)
+#define S3C_UDC_OTG_EP10_FIFO S3C_USBOTGREG(0xB000)
+#define S3C_UDC_OTG_EP11_FIFO S3C_USBOTGREG(0xC000)
+#define S3C_UDC_OTG_EP12_FIFO S3C_USBOTGREG(0xD000)
+#define S3C_UDC_OTG_EP13_FIFO S3C_USBOTGREG(0xE000)
+#define S3C_UDC_OTG_EP14_FIFO S3C_USBOTGREG(0xF000)
+#define S3C_UDC_OTG_EP15_FIFO S3C_USBOTGREG(0x10000)
+
+/*===================================================================== */
+/*definitions related to CSR setting */
+
+/* S3C_UDC_OTG_GOTGCTL */
+#define B_SESSION_VALID (0x1<<19)
+#define A_SESSION_VALID (0x1<<18)
+
+/* S3C_UDC_OTG_GAHBCFG */
+#define PTXFE_HALF (0<<8)
+#define PTXFE_ZERO (1<<8)
+#define NPTXFE_HALF (0<<7)
+#define NPTXFE_ZERO (1<<7)
+#define MODE_SLAVE (0<<5)
+#define MODE_DMA (1<<5)
+#define BURST_SINGLE (0<<1)
+#define BURST_INCR (1<<1)
+#define BURST_INCR4 (3<<1)
+#define BURST_INCR8 (5<<1)
+#define BURST_INCR16 (7<<1)
+#define GBL_INT_UNMASK (1<<0)
+#define GBL_INT_MASK (0<<0)
+
+/* S3C_UDC_OTG_GRSTCTL */
+#define AHB_MASTER_IDLE (1u<<31)
+#define CORE_SOFT_RESET (0x1<<0)
+
+/* S3C_UDC_OTG_GINTSTS/S3C_UDC_OTG_GINTMSK core interrupt register */
+#define INT_RESUME (1u<<31)
+#define INT_DISCONN (0x1<<29)
+#define INT_CONN_ID_STS_CNG (0x1<<28)
+#define INT_OUT_EP (0x1<<19)
+#define INT_IN_EP (0x1<<18)
+#define INT_ENUMDONE (0x1<<13)
+#define INT_RESET (0x1<<12)
+#define INT_SUSPEND (0x1<<11)
+#define INT_EARLY_SUSPEND (0x1<<10)
+#define INT_NP_TX_FIFO_EMPTY (0x1<<5)
+#define INT_RX_FIFO_NOT_EMPTY (0x1<<4)
+#define INT_SOF (0x1<<3)
+#define INT_DEV_MODE (0x0<<0)
+#define INT_HOST_MODE (0x1<<1)
+#define INT_GOUTNakEff (0x01<<7)
+#define INT_GINNakEff (0x01<<6)
+
+#define FULL_SPEED_CONTROL_PKT_SIZE 8
+#define FULL_SPEED_BULK_PKT_SIZE 64
+
+#define HIGH_SPEED_CONTROL_PKT_SIZE 64
+#define HIGH_SPEED_BULK_PKT_SIZE 512
+
+#define RX_FIFO_SIZE (1024*4)
+#define NPTX_FIFO_SIZE (1024*4)
+#define PTX_FIFO_SIZE (1536*1)
+
+#define DEPCTL_TXFNUM_0 (0x0<<22)
+#define DEPCTL_TXFNUM_1 (0x1<<22)
+#define DEPCTL_TXFNUM_2 (0x2<<22)
+#define DEPCTL_TXFNUM_3 (0x3<<22)
+#define DEPCTL_TXFNUM_4 (0x4<<22)
+
+/* Enumeration speed */
+#define USB_HIGH_30_60MHZ (0x0<<1)
+#define USB_FULL_30_60MHZ (0x1<<1)
+#define USB_LOW_6MHZ (0x2<<1)
+#define USB_FULL_48MHZ (0x3<<1)
+
+/* S3C_UDC_OTG_GRXSTSP STATUS */
+#define OUT_PKT_RECEIVED (0x2<<17)
+#define OUT_TRANSFER_COMPLELTED (0x3<<17)
+#define SETUP_TRANSACTION_COMPLETED (0x4<<17)
+#define SETUP_PKT_RECEIVED (0x6<<17)
+#define GLOBAL_OUT_NAK (0x1<<17)
+
+/* S3C_UDC_OTG_DCTL device control register */
+#define NORMAL_OPERATION (0x1<<0)
+#define SOFT_DISCONNECT (0x1<<1)
+#define TEST_CONTROL_MASK (0x7<<4)
+#define TEST_J_MODE (0x1<<4)
+#define TEST_K_MODE (0x2<<4)
+#define TEST_SE0_NAK_MODE (0x3<<4)
+#define TEST_PACKET_MODE (0x4<<4)
+#define TEST_FORCE_ENABLE_MODE (0x5<<4)
+
+/* S3C_UDC_OTG_DAINT device all endpoint interrupt register */
+#define DAINT_OUT_BIT (16)
+#define DAINT_MASK (0xFFFF)
+
+/* S3C_UDC_OTG_DIEPCTL0/DOEPCTL0 device
+ control IN/OUT endpoint 0 control register */
+#define DEPCTL_EPENA (0x1<<31)
+#define DEPCTL_EPDIS (0x1<<30)
+#define DEPCTL_SETD1PID (0x1<<29)
+#define DEPCTL_SETD0PID (0x1<<28)
+#define DEPCTL_SNAK (0x1<<27)
+#define DEPCTL_CNAK (0x1<<26)
+#define DEPCTL_STALL (0x1<<21)
+#define DEPCTL_TYPE_BIT (18)
+#define DEPCTL_TYPE_MASK (0x3<<18)
+#define DEPCTL_CTRL_TYPE (0x0<<18)
+#define DEPCTL_ISO_TYPE (0x1<<18)
+#define DEPCTL_BULK_TYPE (0x2<<18)
+#define DEPCTL_INTR_TYPE (0x3<<18)
+#define DEPCTL_USBACTEP (0x1<<15)
+#define DEPCTL_NEXT_EP_BIT (11)
+#define DEPCTL_MPS_BIT (0)
+#define DEPCTL_MPS_MASK (0x7FF)
+
+#define DEPCTL0_MPS_64 (0x0<<0)
+#define DEPCTL0_MPS_32 (0x1<<0)
+#define DEPCTL0_MPS_16 (0x2<<0)
+#define DEPCTL0_MPS_8 (0x3<<0)
+#define DEPCTL_MPS_BULK_512 (512<<0)
+#define DEPCTL_MPS_INT_MPS_16 (16<<0)
+
+#define DIEPCTL0_NEXT_EP_BIT (11)
+
+
+/* S3C_UDC_OTG_DIEPMSK/DOEPMSK device IN/OUT endpoint
+ common interrupt mask register */
+/* S3C_UDC_OTG_DIEPINTn/DOEPINTn device IN/OUT endpoint interrupt register */
+#define BACK2BACK_SETUP_RECEIVED (0x1<<6)
+#define INTKNEPMIS (0x1<<5)
+#define INTKN_TXFEMP (0x1<<4)
+#define NON_ISO_IN_EP_TIMEOUT (0x1<<3)
+#define CTRL_OUT_EP_SETUP_PHASE_DONE (0x1<<3)
+#define AHB_ERROR (0x1<<2)
+#define EPDISBLD (0x1<<1)
+#define TRANSFER_DONE (0x1<<0)
+
+/*DIEPTSIZ0 / DOEPTSIZ0 */
+
+/* DEPTSIZ common bit */
+#define DEPTSIZ_PKT_CNT_BIT (19)
+#define DEPTSIZ_XFER_SIZE_BIT (0)
+
+#define DEPTSIZ_SETUP_PKCNT_1 (1<<29)
+#define DEPTSIZ_SETUP_PKCNT_2 (2<<29)
+#define DEPTSIZ_SETUP_PKCNT_3 (3<<29)
+
+#endif
diff --git a/board/samsung/goni/goni.c b/board/samsung/goni/goni.c
index 8149ebf..b594bb2 100644
--- a/board/samsung/goni/goni.c
+++ b/board/samsung/goni/goni.c
@@ -27,6 +27,8 @@
#include <i2c.h>
#include <asm/arch/gpio.h>
#include <asm/arch/mmc.h>
+#include <asm/arch/hs_otg.h>
+#include <asm/arch/regs-otg.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -127,3 +129,72 @@ void i2c_init_board(void)
i2c_gpio_init(i2c_gpio, I2C_NUM, I2C_PMIC);
}
+
+#ifdef CONFIG_USB_GADGET
+
+static int max8998_probe(void)
+{
+ unsigned char addr = 0xCC >> 1;
+
+ i2c_set_bus_num(I2C_PMIC);
+
+ if (i2c_probe(addr)) {
+ puts("Can't found max8998\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+#define MAX8998_REG_ONOFF1 0x11
+#define MAX8998_REG_ONOFF2 0x12
+#define MAX8998_LDO3 (1 << 2)
+#define MAX8998_LDO8 (1 << 5)
+
+enum { LDO_OFF, LDO_ON };
+
+inline void max8998_set_ldo(unsigned int reg, unsigned char ldo, int on)
+{
+ unsigned char addr;
+ unsigned char val[2];
+
+ addr = 0xCC >> 1; /* max8998 */
+
+ i2c_read(addr, reg, 1, val, 1);
+ if (on)
+ val[0] |= ldo;
+ else
+ val[0] &= ~ldo;
+
+ i2c_write(addr, reg, 1, val, 1);
+ printf("MAX ONOFF1: val[0]:0x%x val[1]:0x%x\n", val[0], val[1]);
+}
+
+static int s5pc1xx_phy_control(int on)
+{
+ static int status;
+
+ if (max8998_probe())
+ return -1;
+
+ if (on && !status) {
+ max8998_set_ldo(MAX8998_REG_ONOFF1, MAX8998_LDO3, LDO_ON);
+ max8998_set_ldo(MAX8998_REG_ONOFF2, MAX8998_LDO8, LDO_ON);
+ status = 1;
+ } else if (!on && status) {
+ max8998_set_ldo(MAX8998_REG_ONOFF1, MAX8998_LDO3, LDO_OFF);
+ max8998_set_ldo(MAX8998_REG_ONOFF2, MAX8998_LDO8, LDO_OFF);
+ status = 0;
+ }
+ udelay(10000);
+
+ return 0;
+}
+
+
+struct s3c_plat_otg_data s5pc110_otg_data = {
+ .phy_control = s5pc1xx_phy_control,
+ .regs_phy = S5PC110_PHY_BASE,
+ .regs_otg = S5PC110_OTG_BASE,
+};
+#endif
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index 7d5b504..6717e4f 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -26,9 +26,9 @@ include $(TOPDIR)/config.mk
LIB := $(obj)libusb_gadget.o
# new USB gadget layer dependencies
-ifdef CONFIG_USB_ETHER
-COBJS-y += ether.o epautoconf.o config.o usbstring.o
-COBJS-$(CONFIG_USB_ETH_RNDIS) += rndis.o
+ifdef CONFIG_USB_GADGET
+COBJS-y += epautoconf.o config.o usbstring.o
+COBJS-$(CONFIG_USB_GADGET_S3C_UDC_OTG) += s3c_udc_otg.o
else
# Devices not related to the new gadget layer depend on CONFIG_USB_DEVICE
ifdef CONFIG_USB_DEVICE
diff --git a/drivers/usb/gadget/s3c_udc_otg.c b/drivers/usb/gadget/s3c_udc_otg.c
new file mode 100644
index 0000000..66f7311
--- /dev/null
+++ b/drivers/usb/gadget/s3c_udc_otg.c
@@ -0,0 +1,878 @@
+/*
+ * drivers/usb/gadget/s3c_udc_otg.c
+ * Samsung S3C on-chip full/high speed USB OTG 2.0 device controllers
+ *
+ * Copyright (C) 2008 for Samsung Electronics
+ *
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <common.h>
+#include <asm/errno.h>
+#include <linux/list.h>
+#include <malloc.h>
+
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+
+#include <asm/byteorder.h>
+#include <asm/io.h>
+
+#include <asm/mach-types.h>
+#include <asm/arch/gpio.h>
+
+#include <asm/arch/regs-otg.h>
+#include <asm/arch/hs_otg.h>
+#include <asm/arch/power.h>
+
+#include <usb/lin_gadget_compat.h>
+
+/***********************************************************/
+
+#define OTG_DMA_MODE 1
+
+#undef DEBUG_S3C_UDC_SETUP
+#undef DEBUG_S3C_UDC_EP0
+#undef DEBUG_S3C_UDC_ISR
+#undef DEBUG_S3C_UDC_OUT_EP
+#undef DEBUG_S3C_UDC_IN_EP
+#undef DEBUG_S3C_UDC
+
+/* #define DEBUG_S3C_UDC_SETUP */
+/* #define DEBUG_S3C_UDC_EP0 */
+/* #define DEBUG_S3C_UDC_ISR */
+/* #define DEBUG_S3C_UDC_OUT_EP */
+/* #define DEBUG_S3C_UDC_IN_EP */
+/* #define DEBUG_S3C_UDC */
+
+#include <usb/s3c_udc.h>
+
+#define EP0_CON 0
+#define EP_MASK 0xF
+
+#if defined(DEBUG_S3C_UDC_SETUP) || defined(DEBUG_S3C_UDC_ISR) \
+ || defined(DEBUG_S3C_UDC_OUT_EP)
+
+static char *state_names[] = {
+ "WAIT_FOR_SETUP",
+ "DATA_STATE_XMIT",
+ "DATA_STATE_NEED_ZLP",
+ "WAIT_FOR_OUT_STATUS",
+ "DATA_STATE_RECV",
+ "WAIT_FOR_COMPLETE",
+ "WAIT_FOR_OUT_COMPLETE",
+ "WAIT_FOR_IN_COMPLETE",
+ "WAIT_FOR_NULL_COMPLETE",
+};
+#endif
+
+#define DRIVER_DESC "S3C HS USB OTG Device Driver, (c) 2008-2009 Samsung Electronics"
+#define DRIVER_VERSION "15 March 2009"
+
+struct s3c_udc *the_controller;
+
+static const char driver_name[] = "s3c-udc";
+static const char driver_desc[] = DRIVER_DESC;
+static const char ep0name[] = "ep0-control";
+
+/* Max packet size*/
+static unsigned int ep0_fifo_size = 64;
+static unsigned int ep_fifo_size = 512;
+static unsigned int ep_fifo_size2 = 1024;
+static int reset_available = 1;
+
+extern void otg_phy_init(void);
+extern void otg_phy_off(void);
+static struct usb_ctrlrequest *usb_ctrl;
+static dma_addr_t usb_ctrl_dma_addr;
+
+/*
+ Local declarations.
+*/
+static int s3c_ep_enable(struct usb_ep *ep,
+ const struct usb_endpoint_descriptor *);
+static int s3c_ep_disable(struct usb_ep *ep);
+static struct usb_request *s3c_alloc_request(struct usb_ep *ep,
+ gfp_t gfp_flags);
+static void s3c_free_request(struct usb_ep *ep, struct usb_request *);
+
+static int s3c_queue(struct usb_ep *ep, struct usb_request *, gfp_t gfp_flags);
+static int s3c_dequeue(struct usb_ep *ep, struct usb_request *);
+static int s3c_fifo_status(struct usb_ep *ep);
+static void s3c_fifo_flush(struct usb_ep *ep);
+static void s3c_ep0_read(struct s3c_udc *dev);
+static void s3c_ep0_kick(struct s3c_udc *dev, struct s3c_ep *ep);
+static void s3c_handle_ep0(struct s3c_udc *dev);
+static int s3c_ep0_write(struct s3c_udc *dev);
+static int write_fifo_ep0(struct s3c_ep *ep, struct s3c_request *req);
+static void done(struct s3c_ep *ep, struct s3c_request *req, int status);
+static void stop_activity(struct s3c_udc *dev,
+ struct usb_gadget_driver *driver);
+static int udc_enable(struct s3c_udc *dev);
+static void udc_set_address(struct s3c_udc *dev, unsigned char address);
+static void reconfig_usbd(void);
+static void set_max_pktsize(struct s3c_udc *dev, enum usb_device_speed speed);
+static void nuke(struct s3c_ep *ep, int status);
+static int s3c_udc_set_halt(struct usb_ep *_ep, int value);
+static void s3c_udc_set_nak(struct s3c_ep *ep);
+
+static struct usb_ep_ops s3c_ep_ops = {
+ .enable = s3c_ep_enable,
+ .disable = s3c_ep_disable,
+
+ .alloc_request = s3c_alloc_request,
+ .free_request = s3c_free_request,
+
+ .queue = s3c_queue,
+ .dequeue = s3c_dequeue,
+
+ .set_halt = s3c_udc_set_halt,
+ .fifo_status = s3c_fifo_status,
+ .fifo_flush = s3c_fifo_flush,
+};
+
+#define create_proc_files() do {} while (0)
+#define remove_proc_files() do {} while (0)
+
+/***********************************************************/
+
+void __iomem *regs_otg;
+void __iomem *regs_phy;
+
+
+void otg_phy_init(void)
+{
+ the_controller->pdata->phy_control(1);
+
+ /*USB PHY0 Enable */
+ printf("USB PHY0 Enable\n");
+
+ /* Enable PHY */
+ writel(readl(S5P_USB_PHY_CONTROL)|(0x1<<0), S5P_USB_PHY_CONTROL);
+
+ writel((readl(S3C_USBOTG_PHYPWR)
+ &~(0x3<<3)&~(0x1<<0)), S3C_USBOTG_PHYPWR);
+
+ writel((readl(S3C_USBOTG_PHYCLK)
+ &~(0x5<<2))|(0x3<<0), S3C_USBOTG_PHYCLK); /* PLL 24Mhz */
+ writel((readl(S3C_USBOTG_RSTCON)
+ &~(0x3<<1))|(0x1<<0), S3C_USBOTG_RSTCON);
+ udelay(10);
+ writel(readl(S3C_USBOTG_RSTCON)
+ &~(0x7<<0), S3C_USBOTG_RSTCON);
+ udelay(10);
+}
+
+void otg_phy_off(void)
+{
+ /* reset controller just in case */
+ writel(0x1, S3C_USBOTG_RSTCON);
+ udelay(20);
+ writel(0x0, S3C_USBOTG_RSTCON);
+ udelay(20);
+
+ writel(readl(S3C_USBOTG_PHYPWR)|(0x3<<3)|(0x1), S3C_USBOTG_PHYPWR);
+ writel(readl(S5P_USB_PHY_CONTROL)&~(1<<0), S5P_USB_PHY_CONTROL);
+
+ writel((readl(S3C_USBOTG_PHYCLK) & ~(0x5 << 2)), S3C_USBOTG_PHYCLK);
+
+ udelay(10000);
+
+ the_controller->pdata->phy_control(0);
+}
+
+/***********************************************************/
+
+#include "s3c_udc_otg_xfer_dma.c"
+
+/*
+ * udc_disable - disable USB device controller
+ */
+static void udc_disable(struct s3c_udc *dev)
+{
+ DEBUG_SETUP("%s: %p\n", __func__, dev);
+
+ udc_set_address(dev, 0);
+
+ dev->ep0state = WAIT_FOR_SETUP;
+ dev->gadget.speed = USB_SPEED_UNKNOWN;
+ dev->usb_address = 0;
+
+ otg_phy_off();
+}
+
+/*
+ * udc_reinit - initialize software state
+ */
+static void udc_reinit(struct s3c_udc *dev)
+{
+ unsigned int i;
+
+ DEBUG_SETUP("%s: %p\n", __func__, dev);
+
+ /* device/ep0 records init */
+ INIT_LIST_HEAD(&dev->gadget.ep_list);
+ INIT_LIST_HEAD(&dev->gadget.ep0->ep_list);
+ dev->ep0state = WAIT_FOR_SETUP;
+
+ /* basic endpoint records init */
+ for (i = 0; i < S3C_MAX_ENDPOINTS; i++) {
+ struct s3c_ep *ep = &dev->ep[i];
+
+ if (i != 0)
+ list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list);
+
+ ep->desc = 0;
+ ep->stopped = 0;
+ INIT_LIST_HEAD(&ep->queue);
+ ep->pio_irqs = 0;
+ }
+
+ /* the rest was statically initialized, and is read-only */
+}
+
+#define BYTES2MAXP(x) (x / 8)
+#define MAXP2BYTES(x) (x * 8)
+
+/* until it's enabled, this UDC should be completely invisible
+ * to any USB host.
+ */
+static int udc_enable(struct s3c_udc *dev)
+{
+ DEBUG_SETUP("%s: %p\n", __func__, dev);
+
+ otg_phy_init();
+ reconfig_usbd();
+
+ DEBUG_SETUP("S3C USB 2.0 OTG Controller Core Initialized : 0x%x\n",
+ readl(S3C_UDC_OTG_GINTMSK));
+
+ dev->gadget.speed = USB_SPEED_UNKNOWN;
+
+ return 0;
+}
+
+/*
+ Register entry point for the peripheral controller driver.
+*/
+int usb_gadget_register_driver(struct usb_gadget_driver *driver)
+{
+ struct s3c_udc *dev = the_controller;
+ int retval = 0;
+ unsigned long flags;
+
+ DEBUG_SETUP("%s: %s\n", __func__, "no name");
+
+ if (!driver
+ || (driver->speed != USB_SPEED_FULL
+ && driver->speed != USB_SPEED_HIGH)
+ || !driver->bind || !driver->disconnect || !driver->setup)
+ return -EINVAL;
+ if (!dev)
+ return -ENODEV;
+ if (dev->driver)
+ return -EBUSY;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ /* first hook up the driver ... */
+ dev->driver = driver;
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ if (retval) { /* TODO */
+ printk("target device_add failed, error %d\n", retval);
+ return retval;
+ }
+
+ retval = driver->bind(&dev->gadget);
+ if (retval) {
+ DEBUG_SETUP("%s: bind to driver %s --> error %d\n",
+ dev->gadget.name,
+ driver->driver.name, retval);
+ dev->driver = 0;
+ return retval;
+ }
+
+ enable_irq(IRQ_OTG);
+
+ DEBUG_SETUP("Registered gadget driver %s\n", dev->gadget.name);
+ udc_enable(dev);
+
+ return 0;
+}
+EXPORT_SYMBOL(usb_gadget_register_driver);
+
+/*
+ Unregister entry point for the peripheral controller driver.
+*/
+int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
+{
+ struct s3c_udc *dev = the_controller;
+ unsigned long flags;
+
+ if (!dev)
+ return -ENODEV;
+ if (!driver || driver != dev->driver)
+ return -EINVAL;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ dev->driver = 0;
+ stop_activity(dev, driver);
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ driver->unbind(&dev->gadget);
+
+ disable_irq(IRQ_OTG);
+
+ DEBUG_SETUP("Unregistered gadget driver '%s'\n", driver->driver.name);
+
+ udc_disable(dev);
+ return 0;
+}
+EXPORT_SYMBOL(usb_gadget_unregister_driver);
+
+/*
+ * done - retire a request; caller blocked irqs
+ */
+static void done(struct s3c_ep *ep, struct s3c_request *req, int status)
+{
+ unsigned int stopped = ep->stopped;
+
+ DEBUG("%s: %s %p, req = %p, stopped = %d\n",
+ __func__, ep->ep.name, ep, &req->req, stopped);
+
+ list_del_init(&req->queue);
+
+ if (likely(req->req.status == -EINPROGRESS))
+ req->req.status = status;
+ else
+ status = req->req.status;
+
+ if (status && status != -ESHUTDOWN) {
+ DEBUG("complete %s req %p stat %d len %u/%u\n",
+ ep->ep.name, &req->req, status,
+ req->req.actual, req->req.length);
+ }
+
+ /* don't modify queue heads during completion callback */
+ ep->stopped = 1;
+
+#ifdef DEBUG_S3C_UDC
+ printf("calling complete callback\n");
+ {
+ int i, len = req->req.length;
+
+ printf("pkt[%d] = ", req->req.length);
+ if (len > 64)
+ len = 64;
+ for (i = 0; i < len; i++) {
+ printf("%02x", ((u8 *)req->req.buf)[i]);
+ if ((i & 7) == 7)
+ printf(" ");
+ }
+ printf("\n");
+ }
+#endif
+ spin_unlock(&ep->dev->lock);
+ req->req.complete(&ep->ep, &req->req);
+ spin_lock(&ep->dev->lock);
+
+ DEBUG("callback completed\n");
+
+ ep->stopped = stopped;
+}
+
+/*
+ * nuke - dequeue ALL requests
+ */
+static void nuke(struct s3c_ep *ep, int status)
+{
+ struct s3c_request *req;
+
+ DEBUG("%s: %s %p\n", __func__, ep->ep.name, ep);
+
+ /* called with irqs blocked */
+ while (!list_empty(&ep->queue)) {
+ req = list_entry(ep->queue.next, struct s3c_request, queue);
+ done(ep, req, status);
+ }
+}
+
+static void stop_activity(struct s3c_udc *dev,
+ struct usb_gadget_driver *driver)
+{
+ int i;
+
+ /* don't disconnect drivers more than once */
+ if (dev->gadget.speed == USB_SPEED_UNKNOWN)
+ driver = 0;
+ dev->gadget.speed = USB_SPEED_UNKNOWN;
+
+ /* prevent new request submissions, kill any outstanding requests */
+ for (i = 0; i < S3C_MAX_ENDPOINTS; i++) {
+ struct s3c_ep *ep = &dev->ep[i];
+ ep->stopped = 1;
+ nuke(ep, -ESHUTDOWN);
+ }
+
+ /* report disconnect; the driver is already quiesced */
+ if (driver) {
+ spin_unlock(&dev->lock);
+ driver->disconnect(&dev->gadget);
+ spin_lock(&dev->lock);
+ }
+
+ /* re-init driver-visible data structures */
+ udc_reinit(dev);
+}
+
+static void reconfig_usbd(void)
+{
+ /* 2. Soft-reset OTG Core and then unreset again. */
+ int i;
+ unsigned int uTemp = writel(CORE_SOFT_RESET, S3C_UDC_OTG_GRSTCTL);
+
+ DEBUG(2, "Reseting OTG controller\n");
+
+ writel(0<<15 /* PHY Low Power Clock sel*/
+ |1<<14 /* Non-Periodic TxFIFO Rewind Enable*/
+ |0x5<<10 /* Turnaround time*/
+ |0<<9 | 0<<8 /* [0:HNP disable,1:HNP enable][ 0:SRP disable*/
+ /* 1:SRP enable] H1= 1,1*/
+ |0<<7 /* Ulpi DDR sel*/
+ |0<<6 /* 0: high speed utmi+, 1: full speed serial*/
+ |0<<4 /* 0: utmi+, 1:ulpi*/
+ |1<<3 /* phy i/f 0:8bit, 1:16bit*/
+ |0x7<<0, /* HS/FS Timeout**/
+ S3C_UDC_OTG_GUSBCFG);
+
+ /* 3. Put the OTG device core in the disconnected state.*/
+ uTemp = readl(S3C_UDC_OTG_DCTL);
+ uTemp |= SOFT_DISCONNECT;
+ writel(uTemp, S3C_UDC_OTG_DCTL);
+
+ udelay(20);
+
+ /* 4. Make the OTG device core exit from the disconnected state.*/
+ uTemp = readl(S3C_UDC_OTG_DCTL);
+ uTemp = uTemp & ~SOFT_DISCONNECT;
+ writel(uTemp, S3C_UDC_OTG_DCTL);
+
+ /* 5. Configure OTG Core to initial settings of device mode.*/
+ /* [][1: full speed(30Mhz) 0:high speed]*/
+ writel(1<<18 | 0x0<<0, S3C_UDC_OTG_DCFG);
+
+ mdelay(1);
+
+ /* 6. Unmask the core interrupts*/
+ writel(GINTMSK_INIT, S3C_UDC_OTG_GINTMSK);
+
+ /* 7. Set NAK bit of EP0, EP1, EP2*/
+ writel(DEPCTL_EPDIS|DEPCTL_SNAK|(0<<0), S3C_UDC_OTG_DOEPCTL(EP0_CON));
+ writel(DEPCTL_EPDIS|DEPCTL_SNAK|(0<<0), S3C_UDC_OTG_DIEPCTL(EP0_CON));
+
+ for (i = 1; i < S3C_MAX_ENDPOINTS; i++) {
+ writel(DEPCTL_EPDIS|DEPCTL_SNAK, S3C_UDC_OTG_DOEPCTL(i));
+ writel(DEPCTL_EPDIS|DEPCTL_SNAK, S3C_UDC_OTG_DIEPCTL(i));
+ }
+
+ /* 8. Unmask EPO interrupts*/
+ writel(((1 << EP0_CON) << DAINT_OUT_BIT)
+ | (1 << EP0_CON), S3C_UDC_OTG_DAINTMSK);
+
+ /* 9. Unmask device OUT EP common interrupts*/
+ writel(DOEPMSK_INIT, S3C_UDC_OTG_DOEPMSK);
+
+ /* 10. Unmask device IN EP common interrupts*/
+ writel(DIEPMSK_INIT, S3C_UDC_OTG_DIEPMSK);
+
+ /* 11. Set Rx FIFO Size (in 32-bit words) */
+ writel(RX_FIFO_SIZE >> 2, S3C_UDC_OTG_GRXFSIZ);
+
+ /* 12. Set Non Periodic Tx FIFO Size*/
+ writel((NPTX_FIFO_SIZE >> 2) << 16 | ((RX_FIFO_SIZE >> 2)) << 0,
+ S3C_UDC_OTG_GNPTXFSIZ);
+
+ for (i = 1; i < S3C_MAX_HW_ENDPOINTS; i++)
+ writel((PTX_FIFO_SIZE >> 2) << 16 |
+ ((RX_FIFO_SIZE + NPTX_FIFO_SIZE +
+ PTX_FIFO_SIZE*(i-1)) >> 2) << 0,
+ S3C_UDC_OTG_DIEPTXF(i));
+
+ /* check if defined tx fifo sizes fits
+ in SPRAM (S5PC110 fifo has 7936 entries */
+#if (((RX_FIFO_SIZE + NPTX_FIFO_SIZE + PTX_FIFO_SIZE*(S3C_MAX_HW_ENDPOINTS-1)) >> 2) >= 7936)
+#error Too large tx fifo size defined!
+#endif
+
+ /* Flush the RX FIFO */
+ writel(0x10, S3C_UDC_OTG_GRSTCTL);
+ while (readl(S3C_UDC_OTG_GRSTCTL) & 0x10)
+ DEBUG("%s: waiting for S3C_UDC_OTG_GRSTCTL\n", __func__);
+
+ /* Flush all the Tx FIFO's */
+ writel(0x10<<6, S3C_UDC_OTG_GRSTCTL);
+ writel((0x10<<6)|0x20, S3C_UDC_OTG_GRSTCTL);
+ while (readl(S3C_UDC_OTG_GRSTCTL) & 0x20)
+ DEBUG("%s: waiting for S3C_UDC_OTG_GRSTCTL\n", __func__);
+
+ /* 13. Clear NAK bit of EP0, EP1, EP2*/
+ /* For Slave mode*/
+ /* EP0: Control OUT */
+ writel(DEPCTL_EPDIS | DEPCTL_CNAK|(0<<0), S3C_UDC_OTG_DOEPCTL(EP0_CON));
+
+ /* 14. Initialize OTG Link Core.*/
+ writel(GAHBCFG_INIT, S3C_UDC_OTG_GAHBCFG);
+}
+
+static void set_max_pktsize(struct s3c_udc *dev, enum usb_device_speed speed)
+{
+ unsigned int ep_ctrl;
+ int i;
+
+ if (speed == USB_SPEED_HIGH) {
+ ep0_fifo_size = 64;
+ ep_fifo_size = 512;
+ ep_fifo_size2 = 1024;
+ dev->gadget.speed = USB_SPEED_HIGH;
+ } else {
+ ep0_fifo_size = 64;
+ ep_fifo_size = 64;
+ ep_fifo_size2 = 64;
+ dev->gadget.speed = USB_SPEED_FULL;
+ }
+
+ dev->ep[0].ep.maxpacket = ep0_fifo_size;
+ for (i = 1; i < S3C_MAX_ENDPOINTS; i++)
+ dev->ep[i].ep.maxpacket = ep_fifo_size;
+
+ /* EP0 - Control IN (64 bytes)*/
+ ep_ctrl = readl(S3C_UDC_OTG_DIEPCTL(EP0_CON));
+ writel(ep_ctrl|(0<<0), S3C_UDC_OTG_DIEPCTL(EP0_CON));
+
+ /* EP0 - Control OUT (64 bytes)*/
+ ep_ctrl = readl(S3C_UDC_OTG_DOEPCTL(EP0_CON));
+ writel(ep_ctrl|(0<<0), S3C_UDC_OTG_DOEPCTL(EP0_CON));
+}
+
+static int s3c_ep_enable(struct usb_ep *_ep,
+ const struct usb_endpoint_descriptor *desc)
+{
+ struct s3c_ep *ep;
+ struct s3c_udc *dev;
+ unsigned long flags;
+
+ DEBUG("%s: %p\n", __func__, _ep);
+
+ ep = container_of(_ep, struct s3c_ep, ep);
+ if (!_ep || !desc || ep->desc || _ep->name == ep0name
+ || desc->bDescriptorType != USB_DT_ENDPOINT
+ || ep->bEndpointAddress != desc->bEndpointAddress
+ || ep_maxpacket(ep) < le16_to_cpu(desc->wMaxPacketSize)) {
+
+ DEBUG("%s: bad ep or descriptor\n", __func__);
+ return -EINVAL;
+ }
+
+ /* xfer types must match, except that interrupt ~= bulk */
+ if (ep->bmAttributes != desc->bmAttributes
+ && ep->bmAttributes != USB_ENDPOINT_XFER_BULK
+ && desc->bmAttributes != USB_ENDPOINT_XFER_INT) {
+
+ DEBUG("%s: %s type mismatch\n", __func__, _ep->name);
+ return -EINVAL;
+ }
+
+ /* hardware _could_ do smaller, but driver doesn't */
+ if ((desc->bmAttributes == USB_ENDPOINT_XFER_BULK
+ && le16_to_cpu(desc->wMaxPacketSize) != ep_maxpacket(ep))
+ || !desc->wMaxPacketSize) {
+
+ DEBUG("%s: bad %s maxpacket\n", __func__, _ep->name);
+ return -ERANGE;
+ }
+
+ dev = ep->dev;
+ if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN) {
+
+ DEBUG("%s: bogus device state\n", __func__);
+ return -ESHUTDOWN;
+ }
+
+ ep->stopped = 0;
+ ep->desc = desc;
+ ep->pio_irqs = 0;
+ ep->ep.maxpacket = le16_to_cpu(desc->wMaxPacketSize);
+
+ /* Reset halt state */
+ s3c_udc_set_nak(ep);
+ s3c_udc_set_halt(_ep, 0);
+
+ spin_lock_irqsave(&ep->dev->lock, flags);
+ s3c_udc_ep_activate(ep);
+ spin_unlock_irqrestore(&ep->dev->lock, flags);
+
+ DEBUG("%s: enabled %s, stopped = %d, maxpacket = %d\n",
+ __func__, _ep->name, ep->stopped, ep->ep.maxpacket);
+ return 0;
+}
+
+/** Disable EP
+ */
+static int s3c_ep_disable(struct usb_ep *_ep)
+{
+ struct s3c_ep *ep;
+ unsigned long flags;
+
+ DEBUG("%s: %p\n", __func__, _ep);
+
+ ep = container_of(_ep, struct s3c_ep, ep);
+ if (!_ep || !ep->desc) {
+ DEBUG("%s: %s not enabled\n", __func__,
+ _ep ? ep->ep.name : NULL);
+ return -EINVAL;
+ }
+
+ spin_lock_irqsave(&ep->dev->lock, flags);
+
+ /* Nuke all pending requests */
+ nuke(ep, -ESHUTDOWN);
+
+ ep->desc = 0;
+ ep->stopped = 1;
+
+ spin_unlock_irqrestore(&ep->dev->lock, flags);
+
+ DEBUG("%s: disabled %s\n", __func__, _ep->name);
+ return 0;
+}
+
+static struct usb_request *s3c_alloc_request(struct usb_ep *ep,
+ gfp_t gfp_flags)
+{
+ struct s3c_request *req;
+
+ DEBUG("%s: %s %p\n", __func__, ep->name, ep);
+
+ req = kmalloc(sizeof *req, gfp_flags);
+ if (!req)
+ return 0;
+
+ memset(req, 0, sizeof *req);
+ INIT_LIST_HEAD(&req->queue);
+
+ return &req->req;
+}
+
+static void s3c_free_request(struct usb_ep *ep, struct usb_request *_req)
+{
+ struct s3c_request *req;
+
+ DEBUG("%s: %p\n", __func__, ep);
+
+ req = container_of(_req, struct s3c_request, req);
+ WARN_ON(!list_empty(&req->queue));
+ kfree(req);
+}
+
+/* dequeue JUST ONE request */
+static int s3c_dequeue(struct usb_ep *_ep, struct usb_request *_req)
+{
+ struct s3c_ep *ep;
+ struct s3c_request *req;
+ unsigned long flags;
+
+ DEBUG("%s: %p\n", __func__, _ep);
+
+ ep = container_of(_ep, struct s3c_ep, ep);
+ if (!_ep || ep->ep.name == ep0name)
+ return -EINVAL;
+
+ spin_lock_irqsave(&ep->dev->lock, flags);
+
+ /* make sure it's actually queued on this endpoint */
+ list_for_each_entry(req, &ep->queue, queue) {
+ if (&req->req == _req)
+ break;
+ }
+ if (&req->req != _req) {
+ spin_unlock_irqrestore(&ep->dev->lock, flags);
+ return -EINVAL;
+ }
+
+ done(ep, req, -ECONNRESET);
+
+ spin_unlock_irqrestore(&ep->dev->lock, flags);
+ return 0;
+}
+
+/** Return bytes in EP FIFO
+ */
+static int s3c_fifo_status(struct usb_ep *_ep)
+{
+ int count = 0;
+ struct s3c_ep *ep;
+
+ ep = container_of(_ep, struct s3c_ep, ep);
+ if (!_ep) {
+ DEBUG("%s: bad ep\n", __func__);
+ return -ENODEV;
+ }
+
+ DEBUG("%s: %d\n", __func__, ep_index(ep));
+
+ /* LPD can't report unclaimed bytes from IN fifos */
+ if (ep_is_in(ep))
+ return -EOPNOTSUPP;
+
+ return count;
+}
+
+/** Flush EP FIFO
+ */
+static void s3c_fifo_flush(struct usb_ep *_ep)
+{
+ struct s3c_ep *ep;
+
+ ep = container_of(_ep, struct s3c_ep, ep);
+ if (unlikely(!_ep || (!ep->desc && ep->ep.name != ep0name))) {
+ DEBUG("%s: bad ep\n", __func__);
+ return;
+ }
+
+ DEBUG("%s: %d\n", __func__, ep_index(ep));
+}
+
+static const struct usb_gadget_ops s3c_udc_ops = {
+ /* current versions must always be self-powered */
+};
+
+static struct s3c_udc memory = {
+ .usb_address = 0,
+ .gadget = {
+ .ops = &s3c_udc_ops,
+ .ep0 = &memory.ep[0].ep,
+ .name = driver_name,
+ },
+
+ /* control endpoint */
+ .ep[0] = {
+ .ep = {
+ .name = ep0name,
+ .ops = &s3c_ep_ops,
+ .maxpacket = EP0_FIFO_SIZE,
+ },
+ .dev = &memory,
+
+ .bEndpointAddress = 0,
+ .bmAttributes = 0,
+
+ .ep_type = ep_control,
+ },
+
+ /* first group of endpoints */
+ .ep[1] = {
+ .ep = {
+ .name = "ep1in-bulk",
+ .ops = &s3c_ep_ops,
+ .maxpacket = EP_FIFO_SIZE,
+ },
+ .dev = &memory,
+
+ .bEndpointAddress = USB_DIR_IN | 1,
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+
+ .ep_type = ep_bulk_out,
+ .fifo_num = 1,
+ },
+
+ .ep[2] = {
+ .ep = {
+ .name = "ep2out-bulk",
+ .ops = &s3c_ep_ops,
+ .maxpacket = EP_FIFO_SIZE,
+ },
+ .dev = &memory,
+
+ .bEndpointAddress = USB_DIR_OUT | 2,
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+
+ .ep_type = ep_bulk_in,
+ .fifo_num = 2,
+ },
+
+ .ep[3] = {
+ .ep = {
+ .name = "ep3in-int",
+ .ops = &s3c_ep_ops,
+ .maxpacket = EP_FIFO_SIZE,
+ },
+ .dev = &memory,
+
+ .bEndpointAddress = USB_DIR_IN | 3,
+ .bmAttributes = USB_ENDPOINT_XFER_INT,
+
+ .ep_type = ep_interrupt,
+ .fifo_num = 3,
+ },
+};
+
+/*
+ * probe - binds to the platform device
+ */
+
+int s3c_udc_probe(struct s3c_plat_otg_data *pdata)
+{
+ struct s3c_udc *dev = &memory;
+ int retval = 0, i;
+
+ DEBUG("%s: %p\n", __func__, pdata);
+
+ dev->pdata = pdata;
+
+ regs_phy = (void *)pdata->regs_phy;
+ regs_otg = (void *)pdata->regs_otg;
+
+ dev->gadget.is_dualspeed = 1; /* Hack only*/
+ dev->gadget.is_otg = 0;
+ dev->gadget.is_a_peripheral = 0;
+ dev->gadget.b_hnp_enable = 0;
+ dev->gadget.a_hnp_support = 0;
+ dev->gadget.a_alt_hnp_support = 0;
+
+ the_controller = dev;
+
+ for (i = 0; i < S3C_MAX_ENDPOINTS+1; i++) {
+ dev->dma_buf[i] = kmalloc(DMA_BUFFER_SIZE, GFP_KERNEL);
+ dev->dma_addr[i] = (dma_addr_t) dev->dma_buf[i];
+ }
+ usb_ctrl = dev->dma_buf[0];
+ usb_ctrl_dma_addr = dev->dma_addr[0];
+
+ udc_reinit(dev);
+
+ return retval;
+}
+
+int usb_gadget_handle_interrupts()
+{
+ u32 intr_status = readl(S3C_UDC_OTG_GINTSTS);
+ u32 gintmsk = readl(S3C_UDC_OTG_GINTMSK);
+
+ if (intr_status & gintmsk)
+ return s3c_udc_irq(1, (void *)the_controller);
+ return 0;
+}
diff --git a/drivers/usb/gadget/s3c_udc_otg_xfer_dma.c b/drivers/usb/gadget/s3c_udc_otg_xfer_dma.c
new file mode 100644
index 0000000..779f6f6
--- /dev/null
+++ b/drivers/usb/gadget/s3c_udc_otg_xfer_dma.c
@@ -0,0 +1,1406 @@
+/*
+ * drivers/usb/gadget/s3c_udc_otg_xfer_dma.c
+ * Samsung S3C on-chip full/high speed USB OTG 2.0 device controllers
+ *
+ * Copyright (C) 2009 for Samsung Electronics
+ *
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#define GINTMSK_INIT (INT_OUT_EP | INT_IN_EP | INT_RESUME | INT_ENUMDONE\
+ | INT_RESET | INT_SUSPEND)
+#define DOEPMSK_INIT (CTRL_OUT_EP_SETUP_PHASE_DONE | AHB_ERROR|TRANSFER_DONE)
+#define DIEPMSK_INIT (NON_ISO_IN_EP_TIMEOUT|AHB_ERROR|TRANSFER_DONE)
+#define GAHBCFG_INIT (PTXFE_HALF | NPTXFE_HALF | MODE_DMA | BURST_INCR4\
+ | GBL_INT_UNMASK)
+
+static u8 clear_feature_num;
+int clear_feature_flag;
+
+/* Bulk-Only Mass Storage Reset (class-specific request) */
+#define GET_MAX_LUN_REQUEST 0xFE
+#define BOT_RESET_REQUEST 0xFF
+
+void s3c_udc_ep_set_stall(struct s3c_ep *ep);
+
+static inline void s3c_udc_ep0_zlp(struct s3c_udc *dev)
+{
+ u32 ep_ctrl;
+
+ writel(usb_ctrl_dma_addr, S3C_UDC_OTG_DIEPDMA(EP0_CON));
+ writel((1<<19 | 0<<0), S3C_UDC_OTG_DIEPTSIZ(EP0_CON));
+
+ ep_ctrl = readl(S3C_UDC_OTG_DIEPCTL(EP0_CON));
+ writel(ep_ctrl|DEPCTL_EPENA|DEPCTL_CNAK, S3C_UDC_OTG_DIEPCTL(EP0_CON));
+
+ DEBUG_EP0("%s:EP0 ZLP DIEPCTL0 = 0x%x\n",
+ __func__, readl(S3C_UDC_OTG_DIEPCTL(EP0_CON)));
+ dev->ep0state = WAIT_FOR_IN_COMPLETE;
+}
+
+static inline void s3c_udc_pre_setup(void)
+{
+ u32 ep_ctrl;
+
+ DEBUG_IN_EP("%s : Prepare Setup packets.\n", __func__);
+
+ writel((1 << 19) | sizeof(struct usb_ctrlrequest),
+ S3C_UDC_OTG_DOEPTSIZ(EP0_CON));
+ writel(usb_ctrl_dma_addr, S3C_UDC_OTG_DOEPDMA(EP0_CON));
+
+ ep_ctrl = readl(S3C_UDC_OTG_DOEPCTL(EP0_CON));
+ writel(ep_ctrl|DEPCTL_EPENA, S3C_UDC_OTG_DOEPCTL(EP0_CON));
+
+ DEBUG_EP0("%s:EP0 ZLP DIEPCTL0 = 0x%x\n",
+ __func__, readl(S3C_UDC_OTG_DIEPCTL(EP0_CON)));
+ DEBUG_EP0("%s:EP0 ZLP DOEPCTL0 = 0x%x\n",
+ __func__, readl(S3C_UDC_OTG_DOEPCTL(EP0_CON)));
+
+}
+
+static inline void s3c_ep0_complete_out(void)
+{
+ u32 ep_ctrl;
+
+ DEBUG_EP0("%s:EP0 ZLP DIEPCTL0 = 0x%x\n",
+ __func__, readl(S3C_UDC_OTG_DIEPCTL(EP0_CON)));
+ DEBUG_EP0("%s:EP0 ZLP DOEPCTL0 = 0x%x\n",
+ __func__, readl(S3C_UDC_OTG_DOEPCTL(EP0_CON)));
+
+ DEBUG_IN_EP("%s : Prepare Complete Out packet.\n", __func__);
+
+ writel((1 << 19) | sizeof(struct usb_ctrlrequest),
+ S3C_UDC_OTG_DOEPTSIZ(EP0_CON));
+ writel(usb_ctrl_dma_addr, S3C_UDC_OTG_DOEPDMA(EP0_CON));
+
+ ep_ctrl = readl(S3C_UDC_OTG_DOEPCTL(EP0_CON));
+ writel(ep_ctrl|DEPCTL_EPENA|DEPCTL_CNAK, S3C_UDC_OTG_DOEPCTL(EP0_CON));
+
+ DEBUG_EP0("%s:EP0 ZLP DIEPCTL0 = 0x%x\n",
+ __func__, readl(S3C_UDC_OTG_DIEPCTL(EP0_CON)));
+ DEBUG_EP0("%s:EP0 ZLP DOEPCTL0 = 0x%x\n",
+ __func__, readl(S3C_UDC_OTG_DOEPCTL(EP0_CON)));
+
+}
+
+
+static int setdma_rx(struct s3c_ep *ep, struct s3c_request *req)
+{
+ u32 *buf, ctrl;
+ u32 length, pktcnt;
+ u32 ep_num = ep_index(ep);
+
+ buf = req->req.buf + req->req.actual;
+
+ length = min(req->req.length - req->req.actual, (int)ep->ep.maxpacket);
+
+ ep->len = length;
+ ep->dma_buf = buf;
+
+ if (length == 0)
+ pktcnt = 1;
+ else
+ pktcnt = (length - 1)/(ep->ep.maxpacket) + 1;
+
+ pktcnt = 1;
+ ctrl = readl(S3C_UDC_OTG_DOEPCTL(ep_num));
+
+ writel(the_controller->dma_addr[ep_index(ep)+1],
+ S3C_UDC_OTG_DOEPDMA(ep_num));
+ writel((pktcnt<<19)|(length<<0), S3C_UDC_OTG_DOEPTSIZ(ep_num));
+ writel(DEPCTL_EPENA|DEPCTL_CNAK|ctrl, S3C_UDC_OTG_DOEPCTL(ep_num));
+
+ DEBUG_OUT_EP("%s: EP%d RX DMA start : DOEPDMA = 0x%x,"
+ "DOEPTSIZ = 0x%x, DOEPCTL = 0x%x\n"
+ "\tbuf = 0x%p, pktcnt = %d, xfersize = %d\n",
+ __func__, ep_num,
+ readl(S3C_UDC_OTG_DOEPDMA(ep_num)),
+ readl(S3C_UDC_OTG_DOEPTSIZ(ep_num)),
+ readl(S3C_UDC_OTG_DOEPCTL(ep_num)),
+ buf, pktcnt, length);
+ return 0;
+
+}
+
+static int setdma_tx(struct s3c_ep *ep, struct s3c_request *req)
+{
+ u32 *buf, ctrl = 0;
+ u32 length, pktcnt;
+ u32 ep_num = ep_index(ep);
+ u32 *p = the_controller->dma_buf[ep_index(ep)+1];
+
+ buf = req->req.buf + req->req.actual;
+ length = req->req.length - req->req.actual;
+
+ if (ep_num == EP0_CON)
+ length = min(length, (u32)ep_maxpacket(ep));
+
+ ep->len = length;
+ ep->dma_buf = buf;
+ memcpy(p, ep->dma_buf, length);
+
+ if (length == 0)
+ pktcnt = 1;
+ else
+ pktcnt = (length - 1)/(ep->ep.maxpacket) + 1;
+
+ /* Flush the endpoint's Tx FIFO */
+ writel(ep->fifo_num<<6, S3C_UDC_OTG_GRSTCTL);
+ writel((ep->fifo_num<<6)|0x20, S3C_UDC_OTG_GRSTCTL);
+ while (readl(S3C_UDC_OTG_GRSTCTL) & 0x20)
+ ;
+
+ writel(the_controller->dma_addr[ep_index(ep)+1],
+ S3C_UDC_OTG_DIEPDMA(ep_num));
+ writel((pktcnt<<19)|(length<<0), S3C_UDC_OTG_DIEPTSIZ(ep_num));
+
+ ctrl = readl(S3C_UDC_OTG_DIEPCTL(ep_num));
+
+ /* Write the FIFO number to be used for this endpoint */
+ ctrl &= ~(0xF << 22);
+ ctrl |= (ep->fifo_num << 22);
+
+ /* Clear reserved (Next EP) bits */
+ ctrl = (ctrl&~(EP_MASK<<DEPCTL_NEXT_EP_BIT));
+
+ writel(DEPCTL_EPENA|DEPCTL_CNAK|ctrl, S3C_UDC_OTG_DIEPCTL(ep_num));
+
+ DEBUG_IN_EP("%s:EP%d TX DMA start : DIEPDMA0 = 0x%x,"
+ "DIEPTSIZ0 = 0x%x, DIEPCTL0 = 0x%x\n"
+ "\tbuf = 0x%p, pktcnt = %d, xfersize = %d\n",
+ __func__, ep_num,
+ readl(S3C_UDC_OTG_DIEPDMA(ep_num)),
+ readl(S3C_UDC_OTG_DIEPTSIZ(ep_num)),
+ readl(S3C_UDC_OTG_DIEPCTL(ep_num)),
+ buf, pktcnt, length);
+
+ return length;
+}
+
+static void complete_rx(struct s3c_udc *dev, u8 ep_num)
+{
+ struct s3c_ep *ep = &dev->ep[ep_num];
+ struct s3c_request *req = NULL;
+ u32 ep_tsr = 0, xfer_size = 0, is_short = 0;
+ u32 *p = the_controller->dma_buf[ep_index(ep)+1];
+
+ if (list_empty(&ep->queue)) {
+ DEBUG_OUT_EP("%s: RX DMA done : NULL REQ on OUT EP-%d\n",
+ __func__, ep_num);
+ return;
+
+ }
+
+ req = list_entry(ep->queue.next, struct s3c_request, queue);
+ ep_tsr = readl(S3C_UDC_OTG_DOEPTSIZ(ep_num));
+
+ if (ep_num == EP0_CON)
+ xfer_size = (ep_tsr & 0x7f);
+ else
+ xfer_size = (ep_tsr & 0x7fff);
+
+ xfer_size = ep->len - xfer_size;
+ memcpy(ep->dma_buf, p, ep->len);
+
+ req->req.actual += min(xfer_size, req->req.length - req->req.actual);
+ is_short = (xfer_size < ep->ep.maxpacket);
+
+ DEBUG_OUT_EP("%s: RX DMA done : ep = %d, rx bytes = %d/%d, "
+ "is_short = %d, DOEPTSIZ = 0x%x, remained bytes = %d\n",
+ __func__, ep_num, req->req.actual, req->req.length,
+ is_short, ep_tsr, xfer_size);
+
+ if (is_short || req->req.actual == req->req.length) {
+ if (ep_num == EP0_CON && dev->ep0state == DATA_STATE_RECV) {
+ DEBUG_OUT_EP(" => Send ZLP\n");
+ s3c_udc_ep0_zlp(dev);
+ /* packet will be completed in complete_tx() */
+ dev->ep0state = WAIT_FOR_IN_COMPLETE;
+ } else {
+ done(ep, req, 0);
+
+ if (!list_empty(&ep->queue)) {
+ req = list_entry(ep->queue.next,
+ struct s3c_request, queue);
+ DEBUG_OUT_EP("%s: Next Rx request start...\n",
+ __func__);
+ setdma_rx(ep, req);
+ }
+ }
+ } else
+ setdma_rx(ep, req);
+}
+
+static void complete_tx(struct s3c_udc *dev, u8 ep_num)
+{
+ struct s3c_ep *ep = &dev->ep[ep_num];
+ struct s3c_request *req;
+ u32 ep_tsr = 0, xfer_size = 0, is_short = 0;
+ u32 last;
+
+ if (dev->ep0state == WAIT_FOR_NULL_COMPLETE) {
+ dev->ep0state = WAIT_FOR_OUT_COMPLETE;
+ s3c_ep0_complete_out();
+ return;
+ }
+
+ if (list_empty(&ep->queue)) {
+ DEBUG_IN_EP("%s: TX DMA done : NULL REQ on IN EP-%d\n",
+ __func__, ep_num);
+ return;
+
+ }
+
+ req = list_entry(ep->queue.next, struct s3c_request, queue);
+
+ ep_tsr = readl(S3C_UDC_OTG_DIEPTSIZ(ep_num));
+
+ xfer_size = ep->len;
+ is_short = (xfer_size < ep->ep.maxpacket);
+ req->req.actual += min(xfer_size, req->req.length - req->req.actual);
+
+ DEBUG_IN_EP("%s: TX DMA done : ep = %d, tx bytes = %d/%d, "
+ "is_short = %d, DIEPTSIZ = 0x%x, remained bytes = %d\n",
+ __func__, ep_num, req->req.actual, req->req.length,
+ is_short, ep_tsr, xfer_size);
+
+ if (ep_num == 0) {
+ if (dev->ep0state == DATA_STATE_XMIT) {
+ DEBUG_IN_EP("%s: ep_num = %d, ep0stat =="
+ "DATA_STATE_XMIT\n",
+ __func__, ep_num);
+ last = write_fifo_ep0(ep, req);
+ if (last)
+ dev->ep0state = WAIT_FOR_COMPLETE;
+ } else if (dev->ep0state == WAIT_FOR_IN_COMPLETE) {
+ DEBUG_IN_EP("%s: ep_num = %d, completing request\n",
+ __func__, ep_num);
+ done(ep, req, 0);
+ dev->ep0state = WAIT_FOR_SETUP;
+ } else if (dev->ep0state == WAIT_FOR_COMPLETE) {
+ DEBUG_IN_EP("%s: ep_num = %d, completing request\n",
+ __func__, ep_num);
+ done(ep, req, 0);
+ dev->ep0state = WAIT_FOR_OUT_COMPLETE;
+ s3c_ep0_complete_out();
+ } else {
+ DEBUG_IN_EP("%s: ep_num = %d, invalid ep state\n",
+ __func__, ep_num);
+ }
+ return;
+ }
+
+ if (req->req.actual == req->req.length)
+ done(ep, req, 0);
+
+ if (!list_empty(&ep->queue)) {
+ req = list_entry(ep->queue.next, struct s3c_request, queue);
+ DEBUG_IN_EP("%s: Next Tx request start...\n", __func__);
+ setdma_tx(ep, req);
+ }
+}
+
+static inline void s3c_udc_check_tx_queue(struct s3c_udc *dev, u8 ep_num)
+{
+ struct s3c_ep *ep = &dev->ep[ep_num];
+ struct s3c_request *req;
+
+ DEBUG_IN_EP("%s: Check queue, ep_num = %d\n", __func__, ep_num);
+
+ if (!list_empty(&ep->queue)) {
+ req = list_entry(ep->queue.next, struct s3c_request, queue);
+ DEBUG_IN_EP("%s: Next Tx request(0x%p) start...\n",
+ __func__, req);
+
+ if (ep_is_in(ep))
+ setdma_tx(ep, req);
+ else
+ setdma_rx(ep, req);
+ } else {
+ DEBUG_IN_EP("%s: NULL REQ on IN EP-%d\n", __func__, ep_num);
+
+ return;
+ }
+
+}
+
+static void process_ep_in_intr(struct s3c_udc *dev)
+{
+ u32 ep_intr, ep_intr_status;
+ u8 ep_num = 0;
+
+ ep_intr = readl(S3C_UDC_OTG_DAINT);
+ DEBUG_IN_EP("*** %s: EP In interrupt : DAINT = 0x%x\n",
+ __func__, ep_intr);
+
+ ep_intr &= DAINT_MASK;
+
+ while (ep_intr) {
+ if (ep_intr & 0x1) {
+ ep_intr_status = readl(S3C_UDC_OTG_DIEPINT(ep_num));
+ DEBUG_IN_EP("\tEP%d-IN : DIEPINT = 0x%x\n",
+ ep_num, ep_intr_status);
+
+ /* Interrupt Clear */
+ writel(ep_intr_status, S3C_UDC_OTG_DIEPINT(ep_num));
+
+ if (ep_intr_status & TRANSFER_DONE) {
+ complete_tx(dev, ep_num);
+
+ if (ep_num == 0) {
+ if (dev->ep0state ==
+ WAIT_FOR_IN_COMPLETE)
+ dev->ep0state = WAIT_FOR_SETUP;
+
+ if (dev->ep0state == WAIT_FOR_SETUP)
+ s3c_udc_pre_setup();
+
+ /* continue transfer after
+ set_clear_halt for DMA mode */
+ if (clear_feature_flag == 1) {
+ s3c_udc_check_tx_queue(dev,
+ clear_feature_num);
+ clear_feature_flag = 0;
+ }
+ }
+ }
+ }
+ ep_num++;
+ ep_intr >>= 1;
+ }
+}
+
+static void process_ep_out_intr(struct s3c_udc *dev)
+{
+ u32 ep_intr, ep_intr_status;
+ u8 ep_num = 0;
+
+ ep_intr = readl(S3C_UDC_OTG_DAINT);
+ DEBUG_OUT_EP("*** %s: EP OUT interrupt : DAINT = 0x%x\n",
+ __func__, ep_intr);
+
+ ep_intr = (ep_intr >> DAINT_OUT_BIT) & DAINT_MASK;
+
+ while (ep_intr) {
+ if (ep_intr & 0x1) {
+ ep_intr_status = readl(S3C_UDC_OTG_DOEPINT(ep_num));
+ DEBUG_OUT_EP("\tEP%d-OUT : DOEPINT = 0x%x\n",
+ ep_num, ep_intr_status);
+
+ /* Interrupt Clear */
+ writel(ep_intr_status, S3C_UDC_OTG_DOEPINT(ep_num));
+
+ if (ep_num == 0) {
+ if (ep_intr_status & TRANSFER_DONE) {
+ if (dev->ep0state !=
+ WAIT_FOR_OUT_COMPLETE)
+ complete_rx(dev, ep_num);
+ else {
+ dev->ep0state = WAIT_FOR_SETUP;
+ s3c_udc_pre_setup();
+ }
+ }
+
+ if (ep_intr_status &
+ CTRL_OUT_EP_SETUP_PHASE_DONE) {
+ DEBUG_OUT_EP("\tSETUP packet(transaction) arrived\n");
+ s3c_handle_ep0(dev);
+ }
+ } else {
+ if (ep_intr_status & TRANSFER_DONE)
+ complete_rx(dev, ep_num);
+ }
+ }
+ ep_num++;
+ ep_intr >>= 1;
+ }
+}
+
+/*
+ * usb client interrupt handler.
+ */
+static irqreturn_t s3c_udc_irq(int irq, void *_dev)
+{
+ struct s3c_udc *dev = _dev;
+ u32 intr_status;
+ u32 usb_status, gintmsk;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->lock, flags);
+
+ intr_status = readl(S3C_UDC_OTG_GINTSTS);
+ gintmsk = readl(S3C_UDC_OTG_GINTMSK);
+
+ DEBUG_ISR("\n*** %s : GINTSTS=0x%x(on state %s), GINTMSK : 0x%x,"
+ "DAINT : 0x%x, DAINTMSK : 0x%x\n",
+ __func__, intr_status, state_names[dev->ep0state], gintmsk,
+ readl(S3C_UDC_OTG_DAINT), readl(S3C_UDC_OTG_DAINTMSK));
+
+ if (!intr_status) {
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return IRQ_HANDLED;
+ }
+
+ if (intr_status & INT_ENUMDONE) {
+ DEBUG_ISR("\tSpeed Detection interrupt\n");
+
+ writel(INT_ENUMDONE, S3C_UDC_OTG_GINTSTS);
+ usb_status = (readl(S3C_UDC_OTG_DSTS) & 0x6);
+
+ if (usb_status & (USB_FULL_30_60MHZ | USB_FULL_48MHZ)) {
+ DEBUG_ISR("\t\tFull Speed Detection\n");
+ set_max_pktsize(dev, USB_SPEED_FULL);
+
+ } else {
+ DEBUG_ISR("\t\tHigh Speed Detection : 0x%x\n",
+ usb_status);
+ set_max_pktsize(dev, USB_SPEED_HIGH);
+ }
+ }
+
+ if (intr_status & INT_EARLY_SUSPEND) {
+ DEBUG_ISR("\tEarly suspend interrupt\n");
+ writel(INT_EARLY_SUSPEND, S3C_UDC_OTG_GINTSTS);
+ }
+
+ if (intr_status & INT_SUSPEND) {
+ usb_status = readl(S3C_UDC_OTG_DSTS);
+ DEBUG_ISR("\tSuspend interrupt :(DSTS):0x%x\n", usb_status);
+ writel(INT_SUSPEND, S3C_UDC_OTG_GINTSTS);
+
+ if (dev->gadget.speed != USB_SPEED_UNKNOWN
+ && dev->driver) {
+ if (dev->driver->suspend)
+ dev->driver->suspend(&dev->gadget);
+
+ /* HACK to let gadget detect disconnected state */
+ if (dev->driver->disconnect) {
+ spin_unlock_irqrestore(&dev->lock, flags);
+ dev->driver->disconnect(&dev->gadget);
+ spin_lock_irqsave(&dev->lock, flags);
+ }
+ }
+ }
+
+ if (intr_status & INT_RESUME) {
+ DEBUG_ISR("\tResume interrupt\n");
+ writel(INT_RESUME, S3C_UDC_OTG_GINTSTS);
+
+ if (dev->gadget.speed != USB_SPEED_UNKNOWN
+ && dev->driver
+ && dev->driver->resume) {
+
+ dev->driver->resume(&dev->gadget);
+ }
+ }
+
+ if (intr_status & INT_RESET) {
+ usb_status = readl(S3C_UDC_OTG_GOTGCTL);
+ DEBUG_ISR("\tReset interrupt - (GOTGCTL):0x%x\n", usb_status);
+ writel(INT_RESET, S3C_UDC_OTG_GINTSTS);
+
+ if ((usb_status & 0xc0000) == (0x3 << 18)) {
+ if (reset_available) {
+ DEBUG_ISR("\t\tOTG core got reset (%d)!!\n",
+ reset_available);
+ reconfig_usbd();
+ dev->ep0state = WAIT_FOR_SETUP;
+ reset_available = 0;
+ s3c_udc_pre_setup();
+ } else
+ reset_available = 1;
+
+ } else {
+ reset_available = 1;
+ DEBUG_ISR("\t\tRESET handling skipped\n");
+ }
+ }
+
+ if (intr_status & INT_IN_EP)
+ process_ep_in_intr(dev);
+
+ if (intr_status & INT_OUT_EP)
+ process_ep_out_intr(dev);
+
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ return IRQ_HANDLED;
+}
+
+/** Queue one request
+ * Kickstart transfer if needed
+ */
+static int s3c_queue(struct usb_ep *_ep, struct usb_request *_req,
+ gfp_t gfp_flags)
+{
+ struct s3c_request *req;
+ struct s3c_ep *ep;
+ struct s3c_udc *dev;
+ unsigned long flags;
+ u32 ep_num, gintsts;
+
+ req = container_of(_req, struct s3c_request, req);
+ if (unlikely(!_req || !_req->complete || !_req->buf
+ || !list_empty(&req->queue))) {
+
+ DEBUG("%s: bad params\n", __func__);
+ return -EINVAL;
+ }
+
+ ep = container_of(_ep, struct s3c_ep, ep);
+
+ if (unlikely(!_ep || (!ep->desc && ep->ep.name != ep0name))) {
+
+ DEBUG("%s: bad ep: %s, %d, %x\n", __func__,
+ ep->ep.name, !ep->desc, _ep);
+ return -EINVAL;
+ }
+
+ ep_num = ep_index(ep);
+ dev = ep->dev;
+ if (unlikely(!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN)) {
+
+ DEBUG("%s: bogus device state %p\n", __func__, dev->driver);
+ return -ESHUTDOWN;
+ }
+
+ spin_lock_irqsave(&dev->lock, flags);
+
+ _req->status = -EINPROGRESS;
+ _req->actual = 0;
+
+ /* kickstart this i/o queue? */
+ DEBUG("\n*** %s: %s-%s req = %p, len = %d, buf = %p"
+ "Q empty = %d, stopped = %d\n",
+ __func__, _ep->name, ep_is_in(ep) ? "in" : "out",
+ _req, _req->length, _req->buf,
+ list_empty(&ep->queue), ep->stopped);
+
+#ifdef DEBUG_S3C_UDC
+ {
+ int i, len = _req->length;
+
+ printf("pkt = ");
+ if (len > 64)
+ len = 64;
+ for (i = 0; i < len; i++) {
+ printf("%02x", ((u8 *)_req->buf)[i]);
+ if ((i & 7) == 7)
+ printf(" ");
+ }
+ printf("\n");
+ }
+#endif
+
+ if (list_empty(&ep->queue) && !ep->stopped) {
+
+ if (ep_num == 0) {
+ /* EP0 */
+ list_add_tail(&req->queue, &ep->queue);
+ s3c_ep0_kick(dev, ep);
+ req = 0;
+
+ } else if (ep_is_in(ep)) {
+ gintsts = readl(S3C_UDC_OTG_GINTSTS);
+ DEBUG_IN_EP("%s: ep_is_in, S3C_UDC_OTG_GINTSTS=0x%x\n",
+ __func__, gintsts);
+
+ setdma_tx(ep, req);
+ } else {
+ gintsts = readl(S3C_UDC_OTG_GINTSTS);
+ DEBUG_OUT_EP("%s:ep_is_out, S3C_UDC_OTG_GINTSTS=0x%x\n",
+ __func__, gintsts);
+
+ setdma_rx(ep, req);
+ }
+ }
+
+ /* pio or dma irq handler advances the queue. */
+ if (likely(req != 0))
+ list_add_tail(&req->queue, &ep->queue);
+
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ return 0;
+}
+
+/****************************************************************/
+/* End Point 0 related functions */
+/****************************************************************/
+
+/* return: 0 = still running, 1 = completed, negative = errno */
+static int write_fifo_ep0(struct s3c_ep *ep, struct s3c_request *req)
+{
+ u32 max;
+ unsigned count;
+ int is_last;
+
+ max = ep_maxpacket(ep);
+
+ DEBUG_EP0("%s: max = %d\n", __func__, max);
+
+ count = setdma_tx(ep, req);
+
+ /* last packet is usually short (or a zlp) */
+ if (likely(count != max))
+ is_last = 1;
+ else {
+ if (likely(req->req.length != req->req.actual + count)
+ || req->req.zero)
+ is_last = 0;
+ else
+ is_last = 1;
+ }
+
+ DEBUG_EP0("%s: wrote %s %d bytes%s %d left %p\n", __func__,
+ ep->ep.name, count,
+ is_last ? "/L" : "",
+ req->req.length - req->req.actual - count, req);
+
+ /* requests complete when all IN data is in the FIFO */
+ if (is_last) {
+ ep->dev->ep0state = WAIT_FOR_SETUP;
+ return 1;
+ }
+
+ return 0;
+}
+
+static inline int s3c_fifo_read(struct s3c_ep *ep, u32 *cp, int max)
+{
+ u32 bytes;
+
+ bytes = sizeof(struct usb_ctrlrequest);
+ DEBUG_EP0("%s: bytes=%d, ep_index=%d\n", __func__,
+ bytes, ep_index(ep));
+
+ return bytes;
+}
+
+/**
+ * udc_set_address - set the USB address for this device
+ * @address:
+ *
+ * Called from control endpoint function
+ * after it decodes a set address setup packet.
+ */
+static void udc_set_address(struct s3c_udc *dev, unsigned char address)
+{
+ u32 ctrl = readl(S3C_UDC_OTG_DCFG);
+ writel(address << 4 | ctrl, S3C_UDC_OTG_DCFG);
+
+ s3c_udc_ep0_zlp(dev);
+
+ DEBUG_EP0("%s: USB OTG 2.0 Device address=%d, DCFG=0x%x\n",
+ __func__, address, readl(S3C_UDC_OTG_DCFG));
+
+ dev->usb_address = address;
+}
+
+static inline void s3c_udc_ep0_set_stall(struct s3c_ep *ep)
+{
+ struct s3c_udc *dev;
+ u32 ep_ctrl = 0;
+
+ dev = ep->dev;
+ ep_ctrl = readl(S3C_UDC_OTG_DIEPCTL(EP0_CON));
+
+ /* set the disable and stall bits */
+ if (ep_ctrl & DEPCTL_EPENA)
+ ep_ctrl |= DEPCTL_EPDIS;
+
+ ep_ctrl |= DEPCTL_STALL;
+
+ writel(ep_ctrl, S3C_UDC_OTG_DIEPCTL(EP0_CON));
+
+ DEBUG_EP0("%s: set ep%d stall, DIEPCTL0 = 0x%x\n",
+ __func__, ep_index(ep), readl(S3C_UDC_OTG_DIEPCTL(EP0_CON)));
+ /*
+ * The application can only set this bit, and the core clears it,
+ * when a SETUP token is received for this endpoint
+ */
+ dev->ep0state = WAIT_FOR_SETUP;
+
+ s3c_udc_pre_setup();
+}
+
+static void s3c_ep0_read(struct s3c_udc *dev)
+{
+ struct s3c_request *req;
+ struct s3c_ep *ep = &dev->ep[0];
+ int ret;
+
+ if (!list_empty(&ep->queue)) {
+ req = list_entry(ep->queue.next, struct s3c_request, queue);
+
+ } else {
+ DEBUG("%s: ---> BUG\n", __func__);
+ BUG();
+ return;
+ }
+
+ DEBUG_EP0("%s: req = %p, req.length = 0x%x, req.actual = 0x%x\n",
+ __func__, req, req->req.length, req->req.actual);
+
+ if (req->req.length == 0) {
+ /* zlp for Set_configuration, Set_interface,
+ * or Bulk-Only mass storge reset */
+
+ ep->len = 0;
+ s3c_udc_ep0_zlp(dev);
+
+ DEBUG_EP0("%s: req.length = 0, bRequest = %d\n",
+ __func__, usb_ctrl->bRequest);
+ return;
+ }
+
+ ret = setdma_rx(ep, req);
+}
+
+/*
+ * DATA_STATE_XMIT
+ */
+static int s3c_ep0_write(struct s3c_udc *dev)
+{
+ struct s3c_request *req;
+ struct s3c_ep *ep = &dev->ep[0];
+ int ret, need_zlp = 0;
+
+ if (list_empty(&ep->queue))
+ req = 0;
+ else
+ req = list_entry(ep->queue.next, struct s3c_request, queue);
+
+ if (!req) {
+ DEBUG_EP0("%s: NULL REQ\n", __func__);
+ return 0;
+ }
+
+ DEBUG_EP0("%s: req = %p, req.length = 0x%x, req.actual = 0x%x\n",
+ __func__, req, req->req.length, req->req.actual);
+
+ if (req->req.length - req->req.actual == ep0_fifo_size) {
+ /* Next write will end with the packet size, */
+ /* so we need Zero-length-packet */
+ need_zlp = 1;
+ }
+
+ ret = write_fifo_ep0(ep, req);
+
+ if ((ret == 1) && !need_zlp) {
+ /* Last packet */
+ dev->ep0state = WAIT_FOR_COMPLETE;
+ DEBUG_EP0("%s: finished, waiting for status\n", __func__);
+
+ } else {
+ dev->ep0state = DATA_STATE_XMIT;
+ DEBUG_EP0("%s: not finished\n", __func__);
+ }
+
+ return 1;
+}
+
+u16 g_status;
+
+static int s3c_udc_get_status(struct s3c_udc *dev,
+ struct usb_ctrlrequest *crq)
+{
+ u8 ep_num = crq->wIndex & 0x7F;
+ u32 ep_ctrl;
+ u32 *p = the_controller->dma_buf[1];
+
+
+ DEBUG_SETUP("%s: *** USB_REQ_GET_STATUS\n", __func__);
+
+ switch (crq->bRequestType & USB_RECIP_MASK) {
+ case USB_RECIP_INTERFACE:
+ g_status = 0;
+ DEBUG_SETUP("\tGET_STATUS:USB_RECIP_INTERFACE, g_stauts = %d\n",
+ g_status);
+ break;
+
+ case USB_RECIP_DEVICE:
+ g_status = 0x1; /* Self powered */
+ DEBUG_SETUP("\tGET_STATUS: USB_RECIP_DEVICE, g_stauts = %d\n",
+ g_status);
+ break;
+
+ case USB_RECIP_ENDPOINT:
+ if (crq->wLength > 2) {
+ DEBUG_SETUP("\tGET_STATUS:Not support EP or wLength\n");
+ return 1;
+ }
+
+ g_status = dev->ep[ep_num].stopped;
+ DEBUG_SETUP("\tGET_STATUS: USB_RECIP_ENDPOINT, g_stauts = %d\n",
+ g_status);
+
+ break;
+
+ default:
+ return 1;
+ }
+
+ memcpy(p, &g_status, sizeof(g_status));
+
+ writel(the_controller->dma_addr[1], S3C_UDC_OTG_DIEPDMA(EP0_CON));
+ writel((1<<19)|(2<<0), S3C_UDC_OTG_DIEPTSIZ(EP0_CON));
+
+ ep_ctrl = readl(S3C_UDC_OTG_DIEPCTL(EP0_CON));
+ writel(ep_ctrl|DEPCTL_EPENA|DEPCTL_CNAK, S3C_UDC_OTG_DIEPCTL(EP0_CON));
+ dev->ep0state = WAIT_FOR_NULL_COMPLETE;
+
+ return 0;
+}
+
+static void s3c_udc_set_nak(struct s3c_ep *ep)
+{
+ u8 ep_num;
+ u32 ep_ctrl = 0;
+
+ ep_num = ep_index(ep);
+ DEBUG("%s: ep_num = %d, ep_type = %d\n", __func__, ep_num, ep->ep_type);
+
+ if (ep_is_in(ep)) {
+ ep_ctrl = readl(S3C_UDC_OTG_DIEPCTL(ep_num));
+ ep_ctrl |= DEPCTL_SNAK;
+ writel(ep_ctrl, S3C_UDC_OTG_DIEPCTL(ep_num));
+ DEBUG("%s: set NAK, DIEPCTL%d = 0x%x\n",
+ __func__, ep_num, readl(S3C_UDC_OTG_DIEPCTL(ep_num)));
+ } else {
+ ep_ctrl = readl(S3C_UDC_OTG_DOEPCTL(ep_num));
+ ep_ctrl |= DEPCTL_SNAK;
+ writel(ep_ctrl, S3C_UDC_OTG_DOEPCTL(ep_num));
+ DEBUG("%s: set NAK, DOEPCTL%d = 0x%x\n",
+ __func__, ep_num, readl(S3C_UDC_OTG_DOEPCTL(ep_num)));
+ }
+
+ return;
+}
+
+
+void s3c_udc_ep_set_stall(struct s3c_ep *ep)
+{
+ u8 ep_num;
+ u32 ep_ctrl = 0;
+
+ ep_num = ep_index(ep);
+ DEBUG("%s: ep_num = %d, ep_type = %d\n", __func__, ep_num, ep->ep_type);
+
+ if (ep_is_in(ep)) {
+ ep_ctrl = readl(S3C_UDC_OTG_DIEPCTL(ep_num));
+
+ /* set the disable and stall bits */
+ if (ep_ctrl & DEPCTL_EPENA)
+ ep_ctrl |= DEPCTL_EPDIS;
+
+ ep_ctrl |= DEPCTL_STALL;
+
+ writel(ep_ctrl, S3C_UDC_OTG_DIEPCTL(ep_num));
+ DEBUG("%s: set stall, DIEPCTL%d = 0x%x\n",
+ __func__, ep_num, readl(S3C_UDC_OTG_DIEPCTL(ep_num)));
+
+ } else {
+ ep_ctrl = readl(S3C_UDC_OTG_DOEPCTL(ep_num));
+
+ /* set the stall bit */
+ ep_ctrl |= DEPCTL_STALL;
+
+ writel(ep_ctrl, S3C_UDC_OTG_DOEPCTL(ep_num));
+ DEBUG("%s: set stall, DOEPCTL%d = 0x%x\n",
+ __func__, ep_num, readl(S3C_UDC_OTG_DOEPCTL(ep_num)));
+ }
+
+ return;
+}
+
+void s3c_udc_ep_clear_stall(struct s3c_ep *ep)
+{
+ u8 ep_num;
+ u32 ep_ctrl = 0;
+
+ ep_num = ep_index(ep);
+ DEBUG("%s: ep_num = %d, ep_type = %d\n", __func__, ep_num, ep->ep_type);
+
+ if (ep_is_in(ep)) {
+ ep_ctrl = readl(S3C_UDC_OTG_DIEPCTL(ep_num));
+
+ /* clear stall bit */
+ ep_ctrl &= ~DEPCTL_STALL;
+
+ /*
+ * USB Spec 9.4.5: For endpoints using data toggle, regardless
+ * of whether an endpoint has the Halt feature set, a
+ * ClearFeature(ENDPOINT_HALT) request always results in the
+ * data toggle being reinitialized to DATA0.
+ */
+ if (ep->bmAttributes == USB_ENDPOINT_XFER_INT
+ || ep->bmAttributes == USB_ENDPOINT_XFER_BULK) {
+ ep_ctrl |= DEPCTL_SETD0PID; /* DATA0 */
+ }
+
+ writel(ep_ctrl, S3C_UDC_OTG_DIEPCTL(ep_num));
+ DEBUG("%s: cleared stall, DIEPCTL%d = 0x%x\n",
+ __func__, ep_num, readl(S3C_UDC_OTG_DIEPCTL(ep_num)));
+
+ } else {
+ ep_ctrl = readl(S3C_UDC_OTG_DOEPCTL(ep_num));
+
+ /* clear stall bit */
+ ep_ctrl &= ~DEPCTL_STALL;
+
+ if (ep->bmAttributes == USB_ENDPOINT_XFER_INT
+ || ep->bmAttributes == USB_ENDPOINT_XFER_BULK) {
+ ep_ctrl |= DEPCTL_SETD0PID; /* DATA0 */
+ }
+
+ writel(ep_ctrl, S3C_UDC_OTG_DOEPCTL(ep_num));
+ DEBUG("%s: cleared stall, DOEPCTL%d = 0x%x\n",
+ __func__, ep_num, readl(S3C_UDC_OTG_DOEPCTL(ep_num)));
+ }
+
+ return;
+}
+
+static int s3c_udc_set_halt(struct usb_ep *_ep, int value)
+{
+ struct s3c_ep *ep;
+ struct s3c_udc *dev;
+ unsigned long flags;
+ u8 ep_num;
+
+ ep = container_of(_ep, struct s3c_ep, ep);
+ ep_num = ep_index(ep);
+
+ if (unlikely (!_ep || !ep->desc || ep_num == EP0_CON ||
+ ep->desc->bmAttributes == USB_ENDPOINT_XFER_ISOC)) {
+ DEBUG("%s: %s bad ep or descriptor\n", __func__, ep->ep.name);
+ return -EINVAL;
+ }
+
+ /* Attempt to halt IN ep will fail if any transfer requests
+ * are still queue */
+ if (value && ep_is_in(ep) && !list_empty(&ep->queue)) {
+ DEBUG("%s: %s queue not empty, req = %p\n",
+ __func__, ep->ep.name,
+ list_entry(ep->queue.next, struct s3c_request, queue));
+
+ return -EAGAIN;
+ }
+
+ dev = ep->dev;
+ DEBUG("%s: ep_num = %d, value = %d\n", __func__, ep_num, value);
+
+ spin_lock_irqsave(&dev->lock, flags);
+
+ if (value == 0) {
+ ep->stopped = 0;
+ s3c_udc_ep_clear_stall(ep);
+ } else {
+ if (ep_num == 0)
+ dev->ep0state = WAIT_FOR_SETUP;
+
+ ep->stopped = 1;
+ s3c_udc_ep_set_stall(ep);
+ }
+
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ return 0;
+}
+
+void s3c_udc_ep_activate(struct s3c_ep *ep)
+{
+ u8 ep_num;
+ u32 ep_ctrl = 0, daintmsk = 0;
+
+ ep_num = ep_index(ep);
+
+ /* Read DEPCTLn register */
+ if (ep_is_in(ep)) {
+ ep_ctrl = readl(S3C_UDC_OTG_DIEPCTL(ep_num));
+ daintmsk = 1 << ep_num;
+ } else {
+ ep_ctrl = readl(S3C_UDC_OTG_DOEPCTL(ep_num));
+ daintmsk = (1 << ep_num) << DAINT_OUT_BIT;
+ }
+
+ DEBUG("%s: EPCTRL%d = 0x%x, ep_is_in = %d\n",
+ __func__, ep_num, ep_ctrl, ep_is_in(ep));
+
+ /* If the EP is already active don't change the EP Control
+ * register. */
+ if (!(ep_ctrl & DEPCTL_USBACTEP)) {
+ ep_ctrl = (ep_ctrl & ~DEPCTL_TYPE_MASK) |
+ (ep->bmAttributes << DEPCTL_TYPE_BIT);
+ ep_ctrl = (ep_ctrl & ~DEPCTL_MPS_MASK) |
+ (ep->ep.maxpacket << DEPCTL_MPS_BIT);
+ ep_ctrl |= (DEPCTL_SETD0PID | DEPCTL_USBACTEP | DEPCTL_SNAK);
+
+ if (ep_is_in(ep)) {
+ writel(ep_ctrl, S3C_UDC_OTG_DIEPCTL(ep_num));
+ DEBUG("%s: USB Ative EP%d, DIEPCTRL%d = 0x%x\n",
+ __func__, ep_num, ep_num,
+ readl(S3C_UDC_OTG_DIEPCTL(ep_num)));
+ } else {
+ writel(ep_ctrl, S3C_UDC_OTG_DOEPCTL(ep_num));
+ DEBUG("%s: USB Ative EP%d, DOEPCTRL%d = 0x%x\n",
+ __func__, ep_num, ep_num,
+ readl(S3C_UDC_OTG_DOEPCTL(ep_num)));
+ }
+ }
+
+ /* Unmask EP Interrtupt */
+ writel(readl(S3C_UDC_OTG_DAINTMSK)|daintmsk, S3C_UDC_OTG_DAINTMSK);
+ DEBUG("%s: DAINTMSK = 0x%x\n", __func__, readl(S3C_UDC_OTG_DAINTMSK));
+
+}
+
+static int s3c_udc_clear_feature(struct usb_ep *_ep)
+{
+ struct s3c_udc *dev;
+ struct s3c_ep *ep;
+ u8 ep_num;
+
+ ep = container_of(_ep, struct s3c_ep, ep);
+ ep_num = ep_index(ep);
+
+ dev = ep->dev;
+ DEBUG_SETUP("%s: ep_num = %d, is_in = %d, clear_feature_flag = %d\n",
+ __func__, ep_num, ep_is_in(ep), clear_feature_flag);
+
+ if (usb_ctrl->wLength != 0) {
+ DEBUG_SETUP("\tCLEAR_FEATURE: wLength is not zero.....\n");
+ return 1;
+ }
+
+ switch (usb_ctrl->bRequestType & USB_RECIP_MASK) {
+ case USB_RECIP_DEVICE:
+ switch (usb_ctrl->wValue) {
+ case USB_DEVICE_REMOTE_WAKEUP:
+ DEBUG_SETUP("\tCLEAR_FEATURE:USB_DEVICE_REMOTE_WAKEUP\n");
+ break;
+
+ case USB_DEVICE_TEST_MODE:
+ DEBUG_SETUP("\tCLEAR_FEATURE: USB_DEVICE_TEST_MODE\n");
+ /** @todo Add CLEAR_FEATURE for TEST modes. */
+ break;
+ }
+
+ s3c_udc_ep0_zlp(dev);
+ break;
+
+ case USB_RECIP_ENDPOINT:
+ DEBUG_SETUP("\tCLEAR_FEATURE:USB_RECIP_ENDPOINT, wValue = %d\n",
+ usb_ctrl->wValue);
+
+ if (usb_ctrl->wValue == USB_ENDPOINT_HALT) {
+ if (ep_num == 0) {
+ s3c_udc_ep0_set_stall(ep);
+ return 0;
+ }
+
+ s3c_udc_ep0_zlp(dev);
+
+ s3c_udc_ep_clear_stall(ep);
+ s3c_udc_ep_activate(ep);
+ ep->stopped = 0;
+
+ clear_feature_num = ep_num;
+ clear_feature_flag = 1;
+ }
+ break;
+ }
+
+ return 0;
+}
+
+static int s3c_udc_set_feature(struct usb_ep *_ep)
+{
+ struct s3c_udc *dev;
+ struct s3c_ep *ep;
+ u8 ep_num;
+
+ ep = container_of(_ep, struct s3c_ep, ep);
+ ep_num = ep_index(ep);
+ dev = ep->dev;
+
+ DEBUG_SETUP("%s: *** USB_REQ_SET_FEATURE , ep_num = %d\n",
+ __func__, ep_num);
+
+ if (usb_ctrl->wLength != 0) {
+ DEBUG_SETUP("\tSET_FEATURE: wLength is not zero.....\n");
+ return 1;
+ }
+
+ switch (usb_ctrl->bRequestType & USB_RECIP_MASK) {
+ case USB_RECIP_DEVICE:
+ switch (usb_ctrl->wValue) {
+ case USB_DEVICE_REMOTE_WAKEUP:
+ DEBUG_SETUP("\tSET_FEATURE:USB_DEVICE_REMOTE_WAKEUP\n");
+ break;
+ case USB_DEVICE_B_HNP_ENABLE:
+ DEBUG_SETUP("\tSET_FEATURE: USB_DEVICE_B_HNP_ENABLE\n");
+ break;
+
+ case USB_DEVICE_A_HNP_SUPPORT:
+ /* RH port supports HNP */
+ DEBUG_SETUP("\tSET_FEATURE:USB_DEVICE_A_HNP_SUPPORT\n");
+ break;
+
+ case USB_DEVICE_A_ALT_HNP_SUPPORT:
+ /* other RH port does */
+ DEBUG_SETUP("\tSET_FEATURE:USB_DEVICE_A_ALT_HNP_SUPPORT\n");
+ break;
+ }
+
+ s3c_udc_ep0_zlp(dev);
+ return 0;
+
+ case USB_RECIP_INTERFACE:
+ DEBUG_SETUP("\tSET_FEATURE: USB_RECIP_INTERFACE\n");
+ break;
+
+ case USB_RECIP_ENDPOINT:
+ DEBUG_SETUP("\tSET_FEATURE: USB_RECIP_ENDPOINT\n");
+ if (usb_ctrl->wValue == USB_ENDPOINT_HALT) {
+ if (ep_num == 0) {
+ s3c_udc_ep0_set_stall(ep);
+ return 0;
+ }
+ ep->stopped = 1;
+ s3c_udc_ep_set_stall(ep);
+ }
+
+ s3c_udc_ep0_zlp(dev);
+ return 0;
+ }
+
+ return 1;
+}
+
+/*
+ * WAIT_FOR_SETUP (OUT_PKT_RDY)
+ */
+static void s3c_ep0_setup(struct s3c_udc *dev)
+{
+ struct s3c_ep *ep = &dev->ep[0];
+ int i, bytes, is_in;
+ u8 ep_num;
+
+ /* Nuke all previous transfers */
+ nuke(ep, -EPROTO);
+
+ /* read control req from fifo (8 bytes) */
+ bytes = s3c_fifo_read(ep, (u32 *)usb_ctrl, 8);
+
+ DEBUG_SETUP("%s: bRequestType = 0x%x(%s), bRequest = 0x%x"
+ "\twLength = 0x%x, wValue = 0x%x, wIndex= 0x%x\n",
+ __func__, usb_ctrl->bRequestType,
+ (usb_ctrl->bRequestType & USB_DIR_IN) ? "IN" : "OUT",
+ usb_ctrl->bRequest,
+ usb_ctrl->wLength, usb_ctrl->wValue, usb_ctrl->wIndex);
+
+#ifdef DEBUG_S3C_UDC
+ {
+ int i, len = sizeof(*usb_ctrl);
+ char *p = usb_ctrl;
+
+ printf("pkt = ");
+ for (i = 0; i < len; i++) {
+ printf("%02x", ((u8 *)p)[i]);
+ if ((i & 7) == 7)
+ printf(" ");
+ }
+ printf("\n");
+ }
+#endif
+
+
+ if (usb_ctrl->bRequest == GET_MAX_LUN_REQUEST &&
+ usb_ctrl->wLength != 1) {
+ DEBUG_SETUP("\t%s:GET_MAX_LUN_REQUEST:invalid wLength = %d, setup returned\n",
+ __func__, usb_ctrl->wLength);
+
+ s3c_udc_ep0_set_stall(ep);
+ dev->ep0state = WAIT_FOR_SETUP;
+
+ return;
+ } else if (usb_ctrl->bRequest == BOT_RESET_REQUEST &&
+ usb_ctrl->wLength != 0) {
+ /* Bulk-Only *mass storge reset of class-specific request */
+ DEBUG_SETUP("\t%s:BOT Rest:invalid wLength = %d, setup returned\n",
+ __func__, usb_ctrl->wLength);
+
+ s3c_udc_ep0_set_stall(ep);
+ dev->ep0state = WAIT_FOR_SETUP;
+
+ return;
+ }
+
+ /* Set direction of EP0 */
+ if (likely(usb_ctrl->bRequestType & USB_DIR_IN)) {
+ ep->bEndpointAddress |= USB_DIR_IN;
+ is_in = 1;
+
+ } else {
+ ep->bEndpointAddress &= ~USB_DIR_IN;
+ is_in = 0;
+ }
+ /* cope with automagic for some standard requests. */
+ dev->req_std = (usb_ctrl->bRequestType & USB_TYPE_MASK)
+ == USB_TYPE_STANDARD;
+ dev->req_config = 0;
+ dev->req_pending = 1;
+
+ /* Handle some SETUP packets ourselves */
+ if (dev->req_std) {
+ switch (usb_ctrl->bRequest) {
+ case USB_REQ_SET_ADDRESS:
+ DEBUG_SETUP("%s: *** USB_REQ_SET_ADDRESS (%d)\n",
+ __func__, usb_ctrl->wValue);
+
+ if (usb_ctrl->bRequestType
+ != (USB_TYPE_STANDARD | USB_RECIP_DEVICE))
+ break;
+
+ udc_set_address(dev, usb_ctrl->wValue);
+ return;
+
+ case USB_REQ_SET_CONFIGURATION:
+ DEBUG_SETUP("=====================================\n");
+ DEBUG_SETUP("%s: USB_REQ_SET_CONFIGURATION (%d)\n",
+ __func__, usb_ctrl->wValue);
+
+ if (usb_ctrl->bRequestType == USB_RECIP_DEVICE) {
+ reset_available = 1;
+ dev->req_config = 1;
+ }
+ break;
+
+ case USB_REQ_GET_DESCRIPTOR:
+ DEBUG_SETUP("%s: *** USB_REQ_GET_DESCRIPTOR\n",
+ __func__);
+ break;
+
+ case USB_REQ_SET_INTERFACE:
+ DEBUG_SETUP("%s: *** USB_REQ_SET_INTERFACE (%d)\n",
+ __func__, usb_ctrl->wValue);
+
+ if (usb_ctrl->bRequestType == USB_RECIP_INTERFACE) {
+ reset_available = 1;
+ dev->req_config = 1;
+ }
+ break;
+
+ case USB_REQ_GET_CONFIGURATION:
+ DEBUG_SETUP("%s: *** USB_REQ_GET_CONFIGURATION\n",
+ __func__);
+ break;
+
+ case USB_REQ_GET_STATUS:
+ if (!s3c_udc_get_status(dev, usb_ctrl))
+ return;
+
+ break;
+
+ case USB_REQ_CLEAR_FEATURE:
+ ep_num = usb_ctrl->wIndex & 0x7f;
+
+ if (!s3c_udc_clear_feature(&dev->ep[ep_num].ep))
+ return;
+
+ break;
+
+ case USB_REQ_SET_FEATURE:
+ ep_num = usb_ctrl->wIndex & 0x7f;
+
+ if (!s3c_udc_set_feature(&dev->ep[ep_num].ep))
+ return;
+
+ break;
+
+ default:
+ DEBUG_SETUP("%s: *** Default of usb_ctrl->bRequest=0x%x"
+ "happened.\n", __func__, usb_ctrl->bRequest);
+ break;
+ }
+ }
+
+ if (likely(dev->driver)) {
+ /* device-2-host (IN) or no data setup command,
+ * process immediately */
+ DEBUG_SETUP("%s:usb_ctrlreq will be passed to fsg_setup()\n",
+ __func__);
+
+ spin_unlock(&dev->lock);
+ i = dev->driver->setup(&dev->gadget, usb_ctrl);
+ spin_lock(&dev->lock);
+
+ if (i < 0) {
+ if (dev->req_config) {
+ DEBUG_SETUP("\tconfig change 0x%02x fail %d?\n",
+ (u32)usb_ctrl->bRequest, i);
+ return;
+ }
+
+ /* setup processing failed, force stall */
+ s3c_udc_ep0_set_stall(ep);
+ dev->ep0state = WAIT_FOR_SETUP;
+
+ DEBUG_SETUP("\tdev->driver->setup failed (%d),"
+ " bRequest = %d\n",
+ i, usb_ctrl->bRequest);
+
+
+ } else if (dev->req_pending) {
+ dev->req_pending = 0;
+ DEBUG_SETUP("\tdev->req_pending...\n");
+ }
+
+ DEBUG_SETUP("\tep0state = %s\n", state_names[dev->ep0state]);
+
+ }
+}
+
+/*
+ * handle ep0 interrupt
+ */
+static void s3c_handle_ep0(struct s3c_udc *dev)
+{
+ if (dev->ep0state == WAIT_FOR_SETUP) {
+ DEBUG_OUT_EP("%s: WAIT_FOR_SETUP\n", __func__);
+ s3c_ep0_setup(dev);
+
+ } else {
+ DEBUG_OUT_EP("%s: strange state!!(state = %s)\n",
+ __func__, state_names[dev->ep0state]);
+ }
+}
+
+static void s3c_ep0_kick(struct s3c_udc *dev, struct s3c_ep *ep)
+{
+ DEBUG_EP0("%s: ep_is_in = %d\n", __func__, ep_is_in(ep));
+ if (ep_is_in(ep)) {
+ dev->ep0state = DATA_STATE_XMIT;
+ s3c_ep0_write(dev);
+
+ } else {
+ dev->ep0state = DATA_STATE_RECV;
+ s3c_ep0_read(dev);
+ }
+}
diff --git a/include/configs/s5p_goni.h b/include/configs/s5p_goni.h
index 50726f7..f7d300c 100644
--- a/include/configs/s5p_goni.h
+++ b/include/configs/s5p_goni.h
@@ -229,4 +229,7 @@
#define CONFIG_SYS_I2C_SPEED 50000
#define CONFIG_I2C_MULTI_BUS
#define CONFIG_SYS_MAX_I2C_BUS 7
+#define CONFIG_USB_GADGET 1
+#define CONFIG_USB_GADGET_S3C_UDC_OTG 1
+#define CONFIG_USB_GADGET_DUALSPEED 1
#endif /* __CONFIG_H */
diff --git a/include/usb/lin_gadget_compat.h b/include/usb/lin_gadget_compat.h
new file mode 100644
index 0000000..abea804
--- /dev/null
+++ b/include/usb/lin_gadget_compat.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2011 Samsung Electronics
+ * Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * This is a Linux kernel compatibility layer for USB Gadget
+ *
+ * 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; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __LIN_COMPAT_H__
+#define __LIN_COMPAT_H__
+
+/* common */
+typedef int spinlock_t;
+typedef int wait_queue_head_t;
+typedef int irqreturn_t;
+#define spin_lock_init(...)
+#define spin_lock(...)
+#define spin_lock_irqsave(lock, flags) do {flags = 1; } while (0)
+#define spin_unlock(...)
+#define spin_unlock_irqrestore(lock, flags) do {flags = 0; } while (0)
+#define disable_irq(...)
+#define enable_irq(...)
+
+#define mutex_init(...)
+#define mutex_lock(...)
+#define mutex_unlock(...)
+
+#define WARN_ON(x) if (x) {printf("WARNING in %s line %d\n" \
+ , __FILE__, __LINE__); }
+
+#define printk printf
+
+#define KERN_WARNING
+#define KERN_ERR
+#define KERN_NOTICE
+#define KERN_DEBUG
+
+#define GFP_KERNEL 0
+
+#define IRQ_HANDLED 1
+
+#define ENOTSUPP 524 /* Operation is not supported */
+
+#define EXPORT_SYMBOL(x)
+
+#define dma_cache_maint(addr, size, mode) cache_flush()
+void cache_flush(void);
+
+#define kmalloc(size, type) malloc(size)
+#define kfree(addr) free(addr)
+#define mdelay(n) ({unsigned long msec = (n); while (msec--) udelay(1000); })
+
+#define __iomem
+
+#endif /* __LIN_COMPAT_H__ */
diff --git a/include/usb/s3c_udc.h b/include/usb/s3c_udc.h
new file mode 100644
index 0000000..8d74bf2
--- /dev/null
+++ b/include/usb/s3c_udc.h
@@ -0,0 +1,160 @@
+/*
+ * drivers/usb/gadget/s3c_udc.h
+ * Samsung S3C on-chip full/high speed USB device controllers
+ * Copyright (C) 2005 for Samsung Electronics
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#ifndef __S3C_USB_GADGET
+#define __S3C_USB_GADGET
+
+
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+#include <linux/list.h>
+#include <usb/lin_gadget_compat.h>
+
+/*-------------------------------------------------------------------------*/
+/* DMA bounce buffer size, 16K is enough even for mass storage */
+#define DMA_BUFFER_SIZE (4096*4)
+
+#define EP0_FIFO_SIZE 64
+#define EP_FIFO_SIZE 512
+#define EP_FIFO_SIZE2 1024
+/* ep0-control, ep1in-bulk, ep2out-bulk, ep3in-int */
+#define S3C_MAX_ENDPOINTS 4
+#define S3C_MAX_HW_ENDPOINTS 16
+
+#define WAIT_FOR_SETUP 0
+#define DATA_STATE_XMIT 1
+#define DATA_STATE_NEED_ZLP 2
+#define WAIT_FOR_OUT_STATUS 3
+#define DATA_STATE_RECV 4
+#define WAIT_FOR_COMPLETE 5
+#define WAIT_FOR_OUT_COMPLETE 6
+#define WAIT_FOR_IN_COMPLETE 7
+#define WAIT_FOR_NULL_COMPLETE 8
+
+#define TEST_J_SEL 0x1
+#define TEST_K_SEL 0x2
+#define TEST_SE0_NAK_SEL 0x3
+#define TEST_PACKET_SEL 0x4
+#define TEST_FORCE_ENABLE_SEL 0x5
+
+/* ************************************************************************* */
+/* IO
+ */
+
+typedef enum ep_type {
+ ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt
+} ep_type_t;
+
+struct s3c_ep {
+ struct usb_ep ep;
+ struct s3c_udc *dev;
+
+ const struct usb_endpoint_descriptor *desc;
+ struct list_head queue;
+ unsigned long pio_irqs;
+ int len;
+ void *dma_buf;
+
+ u8 stopped;
+ u8 bEndpointAddress;
+ u8 bmAttributes;
+
+ ep_type_t ep_type;
+ int fifo_num;
+};
+
+struct s3c_request {
+ struct usb_request req;
+ struct list_head queue;
+};
+
+struct s3c_udc {
+ struct usb_gadget gadget;
+ struct usb_gadget_driver *driver;
+
+ struct s3c_plat_otg_data *pdata;
+ spinlock_t lock;
+ void *dma_buf[S3C_MAX_ENDPOINTS+1];
+ dma_addr_t dma_addr[S3C_MAX_ENDPOINTS+1];
+
+ int ep0state;
+ struct s3c_ep ep[S3C_MAX_ENDPOINTS];
+
+ unsigned char usb_address;
+
+ unsigned req_pending:1, req_std:1, req_config:1;
+};
+
+extern struct s3c_udc *the_controller;
+
+#define ep_is_in(EP) (((EP)->bEndpointAddress&USB_DIR_IN) == USB_DIR_IN)
+#define ep_index(EP) ((EP)->bEndpointAddress&0xF)
+#define ep_maxpacket(EP) ((EP)->ep.maxpacket)
+
+/*-------------------------------------------------------------------------*/
+/* #define DEBUG_UDC */
+#ifdef DEBUG_UDC
+#define DBG(stuff...) printf("udc: " stuff)
+#else
+#define DBG(stuff...) do {} while (0)
+#endif
+
+#ifdef DEBUG_S3C_UDC_SETUP
+#define DEBUG_SETUP(fmt, args...) printk(fmt, ##args)
+#else
+#define DEBUG_SETUP(fmt, args...) do {} while (0)
+#endif
+
+#ifdef DEBUG_S3C_UDC_EP0
+#define DEBUG_EP0(fmt, args...) printk(fmt, ##args)
+#else
+#define DEBUG_EP0(fmt, args...) do {} while (0)
+#endif
+
+#ifdef DEBUG_S3C_UDC
+#define DEBUG(fmt, args...) printk(fmt, ##args)
+#else
+#define DEBUG(fmt, args...) do {} while (0)
+#endif
+
+#ifdef DEBUG_S3C_UDC_ISR
+#define DEBUG_ISR(fmt, args...) printk(fmt, ##args)
+#else
+#define DEBUG_ISR(fmt, args...) do {} while (0)
+#endif
+
+#ifdef DEBUG_S3C_UDC_OUT_EP
+#define DEBUG_OUT_EP(fmt, args...) printk(fmt, ##args)
+#else
+#define DEBUG_OUT_EP(fmt, args...) do {} while (0)
+#endif
+
+#ifdef DEBUG_S3C_UDC_IN_EP
+#define DEBUG_IN_EP(fmt, args...) printk(fmt, ##args)
+#else
+#define DEBUG_IN_EP(fmt, args...) do {} while (0)
+#endif
+
+#define ERR(stuff...) printf("ERR udc: " stuff)
+#define WARN(stuff...) printf("WARNING udc: " stuff)
+#define INFO(stuff...) printf("INFO udc: " stuff)
+
+#endif
--
1.7.2.3
next prev parent reply other threads:[~2011-07-05 13:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-05 13:58 [U-Boot] [PATCH 0/2] usb:gadget: Linux USB Gadget framework Lukasz Majewski
2011-07-05 13:58 ` Lukasz Majewski [this message]
2011-07-05 14:03 ` Wolfgang Denk
-- strict thread matches above, loose matches on Subject: below --
2011-07-05 12:53 Lukasz Majewski
2011-07-05 12:53 ` [U-Boot] [PATCH 1/2] " Lukasz Majewski
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