Support for THOR download protocol. Those files are necessary for
proper f_usbd_thor function proper work.

Signed-off-by: Lukasz Majewski <l.majew...@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.p...@samsung.com>
Cc: Marek Vasut <ma...@denx.de>
---
 drivers/usb/gadget/prot_thor.c |  247 ++++++++++++++++++++++++++++++++++++++++
 drivers/usb/gadget/prot_thor.h |  112 ++++++++++++++++++
 include/usbd_thor.h            |  108 +++++++++++++++++
 3 files changed, 467 insertions(+), 0 deletions(-)
 create mode 100644 drivers/usb/gadget/prot_thor.c
 create mode 100644 drivers/usb/gadget/prot_thor.h
 create mode 100644 include/usbd_thor.h

diff --git a/drivers/usb/gadget/prot_thor.c b/drivers/usb/gadget/prot_thor.c
new file mode 100644
index 0000000..9b2610d
--- /dev/null
+++ b/drivers/usb/gadget/prot_thor.c
@@ -0,0 +1,247 @@
+/*
+ * prot_thor.c -- USB THOR Downloader protocol
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ * Lukasz Majewski <l.majew...@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
+ *
+ */
+#undef DEBUG
+#include <common.h>
+#include <errno.h>
+#include <g_dnl.h>
+#include "prot_thor.h"
+
+static void send_rsp(const rsp_box *rsp)
+{
+       /* should be copy on dma duffer */
+       memcpy(usbd_tx_data_buf, rsp, sizeof(rsp_box));
+       pkt_upload(usbd_tx_data_buf, sizeof(rsp_box));
+
+       debug("-RSP: %d, %d\n", rsp->rsp, rsp->rsp_data);
+}
+
+static void send_data_rsp(s32 ack, s32 count)
+{
+       data_rsp_box rsp;
+
+       rsp.ack = ack;
+       rsp.count = count;
+
+       /* should be copy on dma duffer */
+       memcpy(usbd_tx_data_buf, &rsp, sizeof(data_rsp_box));
+       pkt_upload(usbd_tx_data_buf, sizeof(data_rsp_box));
+
+       debug("-DATA RSP: %d, %d\n", ack, count);
+}
+
+static int process_rqt_info(const rqt_box *rqt)
+{
+       rsp_box rsp = {0, };
+
+       rsp.rsp = rqt->rqt;
+       rsp.rsp_data = rqt->rqt_data;
+
+       switch (rqt->rqt_data) {
+       case RQT_INFO_VER_PROTOCOL:
+               rsp.int_data[0] = VER_PROTOCOL_MAJOR;
+               rsp.int_data[1] = VER_PROTOCOL_MINOR;
+               break;
+       case RQT_INIT_VER_HW:
+               sprintf(rsp.str_data[0], "%x", checkboard());
+               break;
+       case RQT_INIT_VER_BOOT:
+               sprintf(rsp.str_data[0], "%s", getenv("ver"));
+               break;
+       case RQT_INIT_VER_KERNEL:
+               sprintf(rsp.str_data[0], "%s", "k unknown");
+               break;
+       case RQT_INIT_VER_PLATFORM:
+               sprintf(rsp.str_data[0], "%s", "p unknown");
+               break;
+       case RQT_INIT_VER_CSC:
+               sprintf(rsp.str_data[0], "%s", "c unknown");
+               break;
+       default:
+               return 0;
+       }
+
+       send_rsp(&rsp);
+       return 1;
+}
+
+static int process_rqt_cmd(const rqt_box *rqt)
+{
+       rsp_box rsp = {0, };
+
+       rsp.rsp = rqt->rqt;
+       rsp.rsp_data = rqt->rqt_data;
+
+       switch (rqt->rqt_data) {
+       case RQT_CMD_REBOOT:
+               debug("TARGET RESET\n");
+               send_rsp(&rsp);
+               run_command("reset", 0);
+               break;
+       case RQT_CMD_POWEROFF:
+       case RQT_CMD_EFSCLEAR:
+               send_rsp(&rsp);
+       default:
+               printf("Command not supported -> cmd: %d\n", rqt->rqt_data);
+               return -1;
+       }
+
+       return 0;
+}
+
+static unsigned long download(unsigned int total, unsigned int packet_size,
+                             struct g_dnl *dnl)
+{
+       int count = 0;
+       unsigned int rcv_cnt;
+       static int sect_start = 92160; /* Hardcoded -> will be fixed -> */
+       unsigned int dma_buffer_address = CONFIG_SYS_DOWN_ADDR;
+
+       do {
+               if (packet_size == PKT_DOWNLOAD_SIZE)
+                       dma_buffer_address =
+                               CONFIG_SYS_DOWN_ADDR + (count * packet_size);
+
+               usbd_set_dma((char *) dma_buffer_address,
+                            packet_size);
+
+               rcv_cnt += usbd_rx_data();
+               debug("RCV data count: %u\n", rcv_cnt);
+
+               /* Store data after receiving a "chunk" packet */
+               if (packet_size == PKT_DOWNLOAD_CHUNK_SIZE &&
+                   (rcv_cnt % PKT_DOWNLOAD_CHUNK_SIZE) == 0) {
+                       dnl->p = (sect_start + count *
+                                 (PKT_DOWNLOAD_CHUNK_SIZE >> 9));
+                       debug("DNL STORE dnl->p: %d\n", dnl->p);
+                       dnl->store(dnl, dnl->medium);
+               }
+               send_data_rsp(0, ++count);
+       } while (rcv_cnt < total);
+
+       debug("rcv: %d dnl: %d\n", rcv_cnt, total);
+
+       return rcv_cnt;
+}
+
+static int process_rqt_download(const rqt_box *rqt, struct g_dnl *dnl)
+{
+       static unsigned long download_total_size, cnt;
+       static char f_name[F_NAME_BUF_SIZE];
+       rsp_box rsp = {0, };
+       int file_type;
+       int ret = 1;
+
+       rsp.rsp = rqt->rqt;
+       rsp.rsp_data = rqt->rqt_data;
+
+       switch (rqt->rqt_data) {
+       case RQT_DL_INIT:
+               download_total_size = rqt->int_data[0];
+
+               debug("INIT: total %d bytes\n", rqt->int_data[0]);
+               break;
+       case RQT_DL_FILE_INFO:
+               file_type = rqt->int_data[0];
+               if (file_type == FILE_TYPE_PIT) {
+                       puts("PIT table file - not supported\n");
+                       return -1;
+               }
+
+               dnl->file_size = rqt->int_data[1];
+               memcpy(f_name, rqt->str_data[0], sizeof(f_name));
+
+               debug("INFO: name(%s, %d), size(%d), type(%d)\n",
+                      f_name, 0, dnl->file_size, file_type);
+
+               if (dnl->file_size > PKT_DOWNLOAD_CHUNK_SIZE)
+                       dnl->packet_size = PKT_DOWNLOAD_CHUNK_SIZE;
+               else
+                       dnl->packet_size = PKT_DOWNLOAD_SIZE;
+
+               printf("%s: dnl->file_size: %d dnl->packet_size: %d\n",
+                      __func__, dnl->file_size, dnl->packet_size);
+
+               rsp.int_data[0] = dnl->packet_size;
+
+               dnl->file_name = f_name;
+               ret = 0;
+
+               break;
+       case RQT_DL_FILE_START:
+               send_rsp(&rsp);
+
+               cnt = download(download_total_size, dnl->packet_size, dnl);
+
+               dnl->store(dnl, dnl->medium);
+
+               return cnt;
+       case RQT_DL_FILE_END:
+               debug("DL FILE_END\n");
+               break;
+       case RQT_DL_EXIT:
+               debug("DL EXIT\n");
+               ret = 0;
+
+               break;
+       default:
+               printf("Operation not supported: %d\n", rqt->rqt_data);
+               return -1;
+       }
+
+       send_rsp(&rsp);
+       return ret;
+}
+
+int process_data(struct g_dnl *dnl)
+{
+       rqt_box rqt;
+       int ret = 1;
+
+       memset(&rqt, 0, sizeof(rqt));
+       memcpy(&rqt, usbd_rx_data_buf, sizeof(rqt));
+
+       debug("+RQT: %d, %d\n", rqt.rqt, rqt.rqt_data);
+
+       switch (rqt.rqt) {
+       case RQT_INFO:
+               ret = process_rqt_info(&rqt);
+               break;
+       case RQT_CMD:
+               ret = process_rqt_cmd(&rqt);
+               break;
+       case RQT_DL:
+               ret = process_rqt_download(&rqt, dnl);
+               break;
+       case RQT_UL:
+               puts("RQT: UPLOAD not supported!\n");
+               break;
+       default:
+               printf("unknown request (%d)\n", rqt.rqt);
+               ret = 0;
+       }
+
+       /* exit code: */
+       /* 0 - success */
+       /* < 0 - Error code */
+
+       return ret;
+}
diff --git a/drivers/usb/gadget/prot_thor.h b/drivers/usb/gadget/prot_thor.h
new file mode 100644
index 0000000..6e72c75
--- /dev/null
+++ b/drivers/usb/gadget/prot_thor.h
@@ -0,0 +1,112 @@
+/*
+ * THOR protocol internals
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ * Lukasz Majewski <l.majew...@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 __PROT_THOR_H_
+#define __PROT_THOR_H_
+
+#include <common.h>
+#include <linux/usb/f_usbd_thor.h>
+
+#define VER_PROTOCOL_MAJOR     4
+#define VER_PROTOCOL_MINOR     0
+
+enum rqt {
+       RQT_INFO = 200,
+       RQT_CMD,
+       RQT_DL,
+       RQT_UL,
+};
+
+enum rqt_data {
+       /* RQT_INFO */
+       RQT_INFO_VER_PROTOCOL = 1,
+       RQT_INIT_VER_HW,
+       RQT_INIT_VER_BOOT,
+       RQT_INIT_VER_KERNEL,
+       RQT_INIT_VER_PLATFORM,
+       RQT_INIT_VER_CSC,
+
+       /* RQT_CMD */
+       RQT_CMD_REBOOT = 1,
+       RQT_CMD_POWEROFF,
+       RQT_CMD_EFSCLEAR,
+
+       /* RQT_DL */
+       RQT_DL_INIT = 1,
+       RQT_DL_FILE_INFO,
+       RQT_DL_FILE_START,
+       RQT_DL_FILE_END,
+       RQT_DL_EXIT,
+
+       /* RQT_UL */
+       RQT_UL_INIT = 1,
+       RQT_UL_START,
+       RQT_UL_END,
+       RQT_UL_EXIT,
+};
+
+typedef struct _rqt_box {      /* total: 256B */
+       s32 rqt;                /* request id */
+       s32 rqt_data;           /* request data id */
+       s32 int_data[14];       /* int data */
+       char str_data[5][32];   /* string data */
+       char md5[32];           /* md5 checksum */
+} __attribute__((packed)) rqt_box;
+
+typedef struct _rsp_box {      /* total: 128B */
+       s32 rsp;                /* response id (= request id) */
+       s32 rsp_data;           /* response data id */
+       s32 ack;                /* ack */
+       s32 int_data[5];        /* int data */
+       char str_data[3][32];   /* string data */
+} __attribute__((packed)) rsp_box;
+
+typedef struct _data_rsp_box { /* total: 8B */
+       s32 ack;                /* response id (= request id) */
+       s32 count;              /* response data id */
+} __attribute__((packed)) data_rsp_box;
+
+enum {
+       FILE_TYPE_NORMAL,
+       FILE_TYPE_PIT,
+};
+
+#define F_NAME_BUF_SIZE 32
+
+/* download packet size */
+#define PKT_DOWNLOAD_SIZE (1 << 20) /* 1 MiB */
+#define PKT_DOWNLOAD_CHUNK_SIZE (32 << 20) /* 32 MiB */
+
+int process_data(struct g_dnl *dnl);
+
+static inline int pkt_download(void *dest, const int size)
+{
+       usbd_set_dma((char *)dest, size);
+       return usbd_rx_data();
+}
+
+static inline void pkt_upload(void *src, const int size)
+{
+       usbd_tx_data((char *)src, size);
+}
+
+#endif /*  __PROT_THOR_H__ */
diff --git a/include/usbd_thor.h b/include/usbd_thor.h
new file mode 100644
index 0000000..d31bb35
--- /dev/null
+++ b/include/usbd_thor.h
@@ -0,0 +1,108 @@
+/*
+ * USB Downloader for SLP
+ *
+ * Copyright (C) 2011-2012 Samsung Electronics
+ * Minkyu Kang <mk7.k...@samsung.com>
+ * Sanghee Kim <sh0130....@samsung.com>
+ * Lukasz Majewski  <l.majew...@samsung.com>
+ *
+ */
+
+#ifndef _USBD_H_
+#define _USBD_H_
+
+#define msleep(a)      udelay(a * 1000)
+
+/*
+ * updateflag is consist of below bit.
+ * 7: RESERVED.
+ * 6: RESERVED.
+ * 5: RESERVED.
+ * 4: SLP_MMC_RESIZE_REQUIRED
+ * 3: SLP_ROOTFS_NEW
+ * 2: SLP_KERNEL_NEW
+ * 1: SLP_SBL_NEW
+ * 0: SLP_PBL_NEW
+ */
+enum {
+       SLP_PBL_NEW = 0,
+       SLP_SBL_NEW,
+       SLP_KERNEL_NEW,
+       SLP_ROOTFS_NEW,
+       SLP_MMC_RESIZE_REQUIRED
+};
+
+/* status definition */
+enum {
+       STATUS_DONE = 0,
+       STATUS_RETRY,
+       STATUS_ERROR,
+};
+
+/* download mode definition */
+enum {
+       MODE_NORMAL = 0,
+       MODE_FORCE,
+};
+
+/* end mode */
+enum {
+       END_BOOT = 0,
+       END_RETRY,
+       END_FAIL,
+       END_NORMAL,
+};
+/*
+ * USB Downloader Operations
+ * All functions and valuable are mandatory
+ *
+ * usb_init    : initialize the USB Controller and check the connection
+ * usb_stop    : stop and release USB
+ * send_data   : send the data (BULK ONLY!!)
+ * recv_data   : receive the data and returns received size (BULK ONLY!!)
+ * recv_setup  : setup download address, length and DMA setting for receive
+ * tx_data     : send data address
+ * rx_data     : receive data address
+ * tx_len      : size of send data
+ * rx_len      : size of receive data
+ * ram_addr    : address of will be stored data on RAM
+ *
+ * mmc_dev     : device number of mmc
+ * mmc_max     : number of max blocks
+ * mmc_blk     : mmc block size
+ * mmc_total   : mmc total blocks
+ */
+struct usbd_ops {
+       int (*usb_init)(void);
+       void (*usb_stop)(void);
+       void (*send_data)(char *, int);
+       int (*recv_data)(void);
+       void (*recv_setup)(char *, int);
+#ifdef CONFIG_USB_S5PC_DMA
+       void (*prepare_dma)(void * , u32 , uchar);
+       void (*dma_done)(int);
+#endif
+       char *tx_data;
+       char *rx_data;
+       ulong tx_len;
+       ulong rx_len;
+       ulong ram_addr;
+
+       /* mmc device info */
+       uint mmc_dev;
+       uint mmc_max;
+       uint mmc_blk;
+       uint mmc_total;
+
+       void (*set_logo)(char *, int);
+       void (*set_progress)(int);
+       void (*cpu_reset)(void);
+       void (*down_start)(void);
+       void (*down_cancel)(int);
+};
+
+/* This function is interfaced between USB Device Controller and USB Downloader
+ * Must Implementation this function at USB Controller!! */
+struct usbd_ops *usbd_set_interface(struct usbd_ops *);
+
+#endif /* _USBD_H_ */
-- 
1.7.2.3

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