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@@ -0,0 +1,1003 @@
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+/*
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+ * f_thor.c -- USB TIZEN THOR Downloader gadget function
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+ *
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+ * Copyright (C) 2013 Samsung Electronics
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+ * Lukasz Majewski <l.majewski@samsung.com>
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+ *
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+ * Based on code from:
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+ * git://review.tizen.org/kernel/u-boot
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+ *
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+ * Developed by:
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+ * Copyright (C) 2009 Samsung Electronics
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+ * Minkyu Kang <mk7.kang@samsung.com>
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+ * Sanghee Kim <sh0130.kim@samsung.com>
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+ *
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+ * SPDX-License-Identifier: GPL-2.0+
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+ */
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+
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+#include <errno.h>
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+#include <common.h>
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+#include <malloc.h>
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+#include <version.h>
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+#include <linux/usb/ch9.h>
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+#include <linux/usb/gadget.h>
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+#include <linux/usb/composite.h>
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+#include <linux/usb/cdc.h>
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+#include <g_dnl.h>
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+#include <dfu.h>
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+
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+#include "f_thor.h"
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+
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+static void thor_tx_data(unsigned char *data, int len);
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+static void thor_set_dma(void *addr, int len);
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+static int thor_rx_data(void);
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+
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+static struct f_thor *thor_func;
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+static inline struct f_thor *func_to_thor(struct usb_function *f)
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+{
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+ return container_of(f, struct f_thor, usb_function);
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+}
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+
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+DEFINE_CACHE_ALIGN_BUFFER(unsigned char, thor_tx_data_buf,
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+ sizeof(struct rsp_box));
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+DEFINE_CACHE_ALIGN_BUFFER(unsigned char, thor_rx_data_buf,
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+ sizeof(struct rqt_box));
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+
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+/* ********************************************************** */
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+/* THOR protocol - transmission handling */
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+/* ********************************************************** */
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+DEFINE_CACHE_ALIGN_BUFFER(char, f_name, F_NAME_BUF_SIZE);
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+static unsigned long long int thor_file_size;
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+static int alt_setting_num;
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+
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+static void send_rsp(const struct rsp_box *rsp)
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+{
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+ memcpy(thor_tx_data_buf, rsp, sizeof(struct rsp_box));
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+ thor_tx_data(thor_tx_data_buf, sizeof(struct rsp_box));
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+
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+ debug("-RSP: %d, %d\n", rsp->rsp, rsp->rsp_data);
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+}
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+
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+static void send_data_rsp(s32 ack, s32 count)
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+{
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+ ALLOC_CACHE_ALIGN_BUFFER(struct data_rsp_box, rsp,
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+ sizeof(struct data_rsp_box));
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+
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+ rsp->ack = ack;
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+ rsp->count = count;
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+
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+ memcpy(thor_tx_data_buf, rsp, sizeof(struct data_rsp_box));
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+ thor_tx_data(thor_tx_data_buf, sizeof(struct data_rsp_box));
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+
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+ debug("-DATA RSP: %d, %d\n", ack, count);
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+}
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+
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+static int process_rqt_info(const struct rqt_box *rqt)
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+{
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+ ALLOC_CACHE_ALIGN_BUFFER(struct rsp_box, rsp, sizeof(struct rsp_box));
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+ memset(rsp, 0, sizeof(struct rsp_box));
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+
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+ rsp->rsp = rqt->rqt;
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+ rsp->rsp_data = rqt->rqt_data;
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+
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+ switch (rqt->rqt_data) {
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+ case RQT_INFO_VER_PROTOCOL:
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+ rsp->int_data[0] = VER_PROTOCOL_MAJOR;
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+ rsp->int_data[1] = VER_PROTOCOL_MINOR;
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+ break;
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+ case RQT_INIT_VER_HW:
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+ snprintf(rsp->str_data[0], sizeof(rsp->str_data[0]),
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+ "%x", checkboard());
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+ break;
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+ case RQT_INIT_VER_BOOT:
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+ sprintf(rsp->str_data[0], "%s", U_BOOT_VERSION);
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+ break;
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+ case RQT_INIT_VER_KERNEL:
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+ sprintf(rsp->str_data[0], "%s", "k unknown");
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+ break;
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+ case RQT_INIT_VER_PLATFORM:
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+ sprintf(rsp->str_data[0], "%s", "p unknown");
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+ break;
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+ case RQT_INIT_VER_CSC:
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+ sprintf(rsp->str_data[0], "%s", "c unknown");
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+ break;
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+ default:
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+ return -EINVAL;
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+ }
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+
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+ send_rsp(rsp);
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+ return true;
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+}
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+
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+static int process_rqt_cmd(const struct rqt_box *rqt)
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+{
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+ ALLOC_CACHE_ALIGN_BUFFER(struct rsp_box, rsp, sizeof(struct rsp_box));
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+ memset(rsp, 0, sizeof(struct rsp_box));
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+
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+ rsp->rsp = rqt->rqt;
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+ rsp->rsp_data = rqt->rqt_data;
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+
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+ switch (rqt->rqt_data) {
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+ case RQT_CMD_REBOOT:
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+ debug("TARGET RESET\n");
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+ send_rsp(rsp);
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+ g_dnl_unregister();
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+ dfu_free_entities();
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+ run_command("reset", 0);
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+ break;
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+ case RQT_CMD_POWEROFF:
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+ case RQT_CMD_EFSCLEAR:
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+ send_rsp(rsp);
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+ default:
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+ printf("Command not supported -> cmd: %d\n", rqt->rqt_data);
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+ return -EINVAL;
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+ }
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+
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+ return true;
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+}
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+
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+static long long int download_head(unsigned long long total,
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+ unsigned int packet_size,
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+ long long int *left,
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+ int *cnt)
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+{
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+ long long int rcv_cnt = 0, left_to_rcv, ret_rcv;
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+ void *transfer_buffer = dfu_get_buf();
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+ void *buf = transfer_buffer;
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+ int usb_pkt_cnt = 0, ret;
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+
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+ /*
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+ * Files smaller than THOR_STORE_UNIT_SIZE (now 32 MiB) are stored on
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+ * the medium.
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+ * The packet response is sent on the purpose after successful data
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+ * chunk write. There is a room for improvement when asynchronous write
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+ * is performed.
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+ */
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+ while (total - rcv_cnt >= packet_size) {
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+ thor_set_dma(buf, packet_size);
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+ buf += packet_size;
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+ ret_rcv = thor_rx_data();
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+ if (ret_rcv < 0)
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+ return ret_rcv;
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+ rcv_cnt += ret_rcv;
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+ debug("%d: RCV data count: %llu cnt: %d\n", usb_pkt_cnt,
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+ rcv_cnt, *cnt);
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+
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+ if ((rcv_cnt % THOR_STORE_UNIT_SIZE) == 0) {
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+ ret = dfu_write(dfu_get_entity(alt_setting_num),
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+ transfer_buffer, THOR_STORE_UNIT_SIZE,
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+ (*cnt)++);
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+ if (ret) {
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+ error("DFU write failed [%d] cnt: %d",
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+ ret, *cnt);
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+ return ret;
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+ }
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+ buf = transfer_buffer;
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+ }
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+ send_data_rsp(0, ++usb_pkt_cnt);
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+ }
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+
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+ /* Calculate the amount of data to arrive from PC (in bytes) */
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+ left_to_rcv = total - rcv_cnt;
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+
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+ /*
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+ * Calculate number of data already received. but not yet stored
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+ * on the medium (they are smaller than THOR_STORE_UNIT_SIZE)
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+ */
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+ *left = left_to_rcv + buf - transfer_buffer;
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+ debug("%s: left: %llu left_to_rcv: %llu buf: 0x%p\n", __func__,
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+ *left, left_to_rcv, buf);
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+
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+ if (left_to_rcv) {
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+ thor_set_dma(buf, packet_size);
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+ ret_rcv = thor_rx_data();
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+ if (ret_rcv < 0)
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+ return ret_rcv;
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+ rcv_cnt += ret_rcv;
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+ send_data_rsp(0, ++usb_pkt_cnt);
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+ }
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+
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+ debug("%s: %llu total: %llu cnt: %d\n", __func__, rcv_cnt, total, *cnt);
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+
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+ return rcv_cnt;
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+}
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+
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+static int download_tail(long long int left, int cnt)
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+{
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+ void *transfer_buffer = dfu_get_buf();
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+ int ret;
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+
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+ debug("%s: left: %llu cnt: %d\n", __func__, left, cnt);
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+
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+ if (left) {
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+ ret = dfu_write(dfu_get_entity(alt_setting_num),
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+ transfer_buffer, left, cnt++);
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+ if (ret) {
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+ error("DFU write failed [%d]: left: %llu", ret, left);
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+ return ret;
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+ }
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+ }
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+
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+ /*
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+ * To store last "packet" DFU storage backend requires dfu_write with
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+ * size parameter equal to 0
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+ *
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+ * This also frees memory malloc'ed by dfu_get_buf(), so no explicit
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+ * need fo call dfu_free_buf() is needed.
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+ */
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+ ret = dfu_write(dfu_get_entity(alt_setting_num),
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+ transfer_buffer, 0, cnt);
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+ if (ret)
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+ error("DFU write failed [%d] cnt: %d", ret, cnt);
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+
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+ return ret;
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+}
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+
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+static long long int process_rqt_download(const struct rqt_box *rqt)
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+{
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+ ALLOC_CACHE_ALIGN_BUFFER(struct rsp_box, rsp, sizeof(struct rsp_box));
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+ static long long int left, ret_head;
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+ int file_type, ret = 0;
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+ static int cnt;
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+
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+ memset(rsp, 0, sizeof(struct rsp_box));
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+ rsp->rsp = rqt->rqt;
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+ rsp->rsp_data = rqt->rqt_data;
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+
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+ switch (rqt->rqt_data) {
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+ case RQT_DL_INIT:
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+ thor_file_size = rqt->int_data[0];
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+ debug("INIT: total %d bytes\n", rqt->int_data[0]);
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+ break;
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+ case RQT_DL_FILE_INFO:
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+ file_type = rqt->int_data[0];
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+ if (file_type == FILE_TYPE_PIT) {
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+ puts("PIT table file - not supported\n");
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+ rsp->ack = -ENOTSUPP;
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+ ret = rsp->ack;
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+ break;
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+ }
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+
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+ thor_file_size = rqt->int_data[1];
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+ memcpy(f_name, rqt->str_data[0], F_NAME_BUF_SIZE);
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+
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+ debug("INFO: name(%s, %d), size(%llu), type(%d)\n",
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+ f_name, 0, thor_file_size, file_type);
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+
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+ rsp->int_data[0] = THOR_PACKET_SIZE;
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+
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+ alt_setting_num = dfu_get_alt(f_name);
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+ if (alt_setting_num < 0) {
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+ error("Alt setting [%d] to write not found!",
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+ alt_setting_num);
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+ rsp->ack = -ENODEV;
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+ ret = rsp->ack;
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+ }
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+ break;
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+ case RQT_DL_FILE_START:
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+ send_rsp(rsp);
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+ ret_head = download_head(thor_file_size, THOR_PACKET_SIZE,
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+ &left, &cnt);
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+ if (ret_head < 0) {
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+ left = 0;
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+ cnt = 0;
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+ }
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+ return ret_head;
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+ case RQT_DL_FILE_END:
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+ debug("DL FILE_END\n");
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+ rsp->ack = download_tail(left, cnt);
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+ ret = rsp->ack;
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+ left = 0;
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+ cnt = 0;
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+ break;
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+ case RQT_DL_EXIT:
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+ debug("DL EXIT\n");
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+ break;
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+ default:
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+ error("Operation not supported: %d", rqt->rqt_data);
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+ ret = -ENOTSUPP;
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+ }
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+
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+ send_rsp(rsp);
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+ return ret;
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+}
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+
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+static int process_data(void)
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+{
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+ ALLOC_CACHE_ALIGN_BUFFER(struct rqt_box, rqt, sizeof(struct rqt_box));
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+ int ret = -EINVAL;
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+
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+ memset(rqt, 0, sizeof(rqt));
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+ memcpy(rqt, thor_rx_data_buf, sizeof(struct rqt_box));
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+
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+ debug("+RQT: %d, %d\n", rqt->rqt, rqt->rqt_data);
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+
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+ switch (rqt->rqt) {
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+ case RQT_INFO:
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+ ret = process_rqt_info(rqt);
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+ break;
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+ case RQT_CMD:
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+ ret = process_rqt_cmd(rqt);
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+ break;
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+ case RQT_DL:
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+ ret = (int) process_rqt_download(rqt);
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+ break;
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+ case RQT_UL:
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+ puts("RQT: UPLOAD not supported!\n");
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+ break;
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+ default:
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+ error("unknown request (%d)", rqt->rqt);
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+ }
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+
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+ return ret;
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+}
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+
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+/* ********************************************************** */
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+/* THOR USB Function */
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+/* ********************************************************** */
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+
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+static inline struct usb_endpoint_descriptor *
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+ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *hs,
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+ struct usb_endpoint_descriptor *fs)
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+{
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+ if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
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+ return hs;
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+ return fs;
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+}
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+
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+static struct usb_interface_descriptor thor_downloader_intf_data = {
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+ .bLength = sizeof(thor_downloader_intf_data),
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+ .bDescriptorType = USB_DT_INTERFACE,
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+
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+ .bNumEndpoints = 2,
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+ .bInterfaceClass = USB_CLASS_CDC_DATA,
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+};
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+
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+static struct usb_endpoint_descriptor fs_in_desc = {
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+ .bLength = USB_DT_ENDPOINT_SIZE,
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+ .bDescriptorType = USB_DT_ENDPOINT,
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+
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+ .bEndpointAddress = USB_DIR_IN,
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+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
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+};
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+
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+static struct usb_endpoint_descriptor fs_out_desc = {
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+ .bLength = USB_DT_ENDPOINT_SIZE,
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+ .bDescriptorType = USB_DT_ENDPOINT,
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+
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+ .bEndpointAddress = USB_DIR_OUT,
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+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
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+};
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+
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+/* CDC configuration */
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+static struct usb_interface_descriptor thor_downloader_intf_int = {
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+ .bLength = sizeof(thor_downloader_intf_int),
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+ .bDescriptorType = USB_DT_INTERFACE,
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+
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+ .bNumEndpoints = 1,
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+ .bInterfaceClass = USB_CLASS_COMM,
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+ /* 0x02 Abstract Line Control Model */
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+ .bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
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+ /* 0x01 Common AT commands */
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+ .bInterfaceProtocol = USB_CDC_ACM_PROTO_AT_V25TER,
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+};
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+
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+static struct usb_cdc_header_desc thor_downloader_cdc_header = {
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+ .bLength = sizeof(thor_downloader_cdc_header),
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+ .bDescriptorType = 0x24, /* CS_INTERFACE */
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+ .bDescriptorSubType = 0x00,
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+ .bcdCDC = 0x0110,
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+};
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+
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+static struct usb_cdc_call_mgmt_descriptor thor_downloader_cdc_call = {
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+ .bLength = sizeof(thor_downloader_cdc_call),
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+ .bDescriptorType = 0x24, /* CS_INTERFACE */
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+ .bDescriptorSubType = 0x01,
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|
|
+ .bmCapabilities = 0x00,
|
|
|
+ .bDataInterface = 0x01,
|
|
|
+};
|
|
|
+
|
|
|
+static struct usb_cdc_acm_descriptor thor_downloader_cdc_abstract = {
|
|
|
+ .bLength = sizeof(thor_downloader_cdc_abstract),
|
|
|
+ .bDescriptorType = 0x24, /* CS_INTERFACE */
|
|
|
+ .bDescriptorSubType = 0x02,
|
|
|
+ .bmCapabilities = 0x00,
|
|
|
+};
|
|
|
+
|
|
|
+static struct usb_cdc_union_desc thor_downloader_cdc_union = {
|
|
|
+ .bLength = sizeof(thor_downloader_cdc_union),
|
|
|
+ .bDescriptorType = 0x24, /* CS_INTERFACE */
|
|
|
+ .bDescriptorSubType = USB_CDC_UNION_TYPE,
|
|
|
+};
|
|
|
+
|
|
|
+static struct usb_endpoint_descriptor fs_int_desc = {
|
|
|
+ .bLength = USB_DT_ENDPOINT_SIZE,
|
|
|
+ .bDescriptorType = USB_DT_ENDPOINT,
|
|
|
+
|
|
|
+ .bEndpointAddress = 3 | USB_DIR_IN,
|
|
|
+ .bmAttributes = USB_ENDPOINT_XFER_INT,
|
|
|
+ .wMaxPacketSize = __constant_cpu_to_le16(16),
|
|
|
+
|
|
|
+ .bInterval = 0x9,
|
|
|
+};
|
|
|
+
|
|
|
+static struct usb_interface_assoc_descriptor
|
|
|
+thor_iad_descriptor = {
|
|
|
+ .bLength = sizeof(thor_iad_descriptor),
|
|
|
+ .bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
|
|
|
+
|
|
|
+ .bFirstInterface = 0,
|
|
|
+ .bInterfaceCount = 2, /* control + data */
|
|
|
+ .bFunctionClass = USB_CLASS_COMM,
|
|
|
+ .bFunctionSubClass = USB_CDC_SUBCLASS_ACM,
|
|
|
+ .bFunctionProtocol = USB_CDC_PROTO_NONE,
|
|
|
+};
|
|
|
+
|
|
|
+static struct usb_endpoint_descriptor hs_in_desc = {
|
|
|
+ .bLength = USB_DT_ENDPOINT_SIZE,
|
|
|
+ .bDescriptorType = USB_DT_ENDPOINT,
|
|
|
+
|
|
|
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
|
|
|
+ .wMaxPacketSize = __constant_cpu_to_le16(512),
|
|
|
+};
|
|
|
+
|
|
|
+static struct usb_endpoint_descriptor hs_out_desc = {
|
|
|
+ .bLength = USB_DT_ENDPOINT_SIZE,
|
|
|
+ .bDescriptorType = USB_DT_ENDPOINT,
|
|
|
+
|
|
|
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
|
|
|
+ .wMaxPacketSize = __constant_cpu_to_le16(512),
|
|
|
+};
|
|
|
+
|
|
|
+static struct usb_endpoint_descriptor hs_int_desc = {
|
|
|
+ .bLength = USB_DT_ENDPOINT_SIZE,
|
|
|
+ .bDescriptorType = USB_DT_ENDPOINT,
|
|
|
+
|
|
|
+ .bmAttributes = USB_ENDPOINT_XFER_INT,
|
|
|
+ .wMaxPacketSize = __constant_cpu_to_le16(16),
|
|
|
+
|
|
|
+ .bInterval = 0x9,
|
|
|
+};
|
|
|
+
|
|
|
+static struct usb_qualifier_descriptor dev_qualifier = {
|
|
|
+ .bLength = sizeof(dev_qualifier),
|
|
|
+ .bDescriptorType = USB_DT_DEVICE_QUALIFIER,
|
|
|
+
|
|
|
+ .bcdUSB = __constant_cpu_to_le16(0x0200),
|
|
|
+ .bDeviceClass = USB_CLASS_VENDOR_SPEC,
|
|
|
+
|
|
|
+ .bNumConfigurations = 2,
|
|
|
+};
|
|
|
+
|
|
|
+/*
|
|
|
+ * This attribute vendor descriptor is necessary for correct operation with
|
|
|
+ * Windows version of THOR download program
|
|
|
+ *
|
|
|
+ * It prevents windows driver from sending zero lenght packet (ZLP) after
|
|
|
+ * each THOR_PACKET_SIZE. This assures consistent behaviour with libusb
|
|
|
+ */
|
|
|
+static struct usb_cdc_attribute_vendor_descriptor thor_downloader_cdc_av = {
|
|
|
+ .bLength = sizeof(thor_downloader_cdc_av),
|
|
|
+ .bDescriptorType = 0x24,
|
|
|
+ .bDescriptorSubType = 0x80,
|
|
|
+ .DAUType = 0x0002,
|
|
|
+ .DAULength = 0x0001,
|
|
|
+ .DAUValue = 0x00,
|
|
|
+};
|
|
|
+
|
|
|
+static const struct usb_descriptor_header *hs_thor_downloader_function[] = {
|
|
|
+ (struct usb_descriptor_header *)&thor_iad_descriptor,
|
|
|
+
|
|
|
+ (struct usb_descriptor_header *)&thor_downloader_intf_int,
|
|
|
+ (struct usb_descriptor_header *)&thor_downloader_cdc_header,
|
|
|
+ (struct usb_descriptor_header *)&thor_downloader_cdc_call,
|
|
|
+ (struct usb_descriptor_header *)&thor_downloader_cdc_abstract,
|
|
|
+ (struct usb_descriptor_header *)&thor_downloader_cdc_union,
|
|
|
+ (struct usb_descriptor_header *)&hs_int_desc,
|
|
|
+
|
|
|
+ (struct usb_descriptor_header *)&thor_downloader_intf_data,
|
|
|
+ (struct usb_descriptor_header *)&thor_downloader_cdc_av,
|
|
|
+ (struct usb_descriptor_header *)&hs_in_desc,
|
|
|
+ (struct usb_descriptor_header *)&hs_out_desc,
|
|
|
+ NULL,
|
|
|
+};
|
|
|
+
|
|
|
+/*-------------------------------------------------------------------------*/
|
|
|
+static struct usb_request *alloc_ep_req(struct usb_ep *ep, unsigned length)
|
|
|
+{
|
|
|
+ struct usb_request *req;
|
|
|
+
|
|
|
+ req = usb_ep_alloc_request(ep, 0);
|
|
|
+ if (!req)
|
|
|
+ return req;
|
|
|
+
|
|
|
+ req->length = length;
|
|
|
+ req->buf = memalign(CONFIG_SYS_CACHELINE_SIZE, length);
|
|
|
+ if (!req->buf) {
|
|
|
+ usb_ep_free_request(ep, req);
|
|
|
+ req = NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ return req;
|
|
|
+}
|
|
|
+
|
|
|
+static int thor_rx_data(void)
|
|
|
+{
|
|
|
+ struct thor_dev *dev = thor_func->dev;
|
|
|
+ int data_to_rx, tmp, status;
|
|
|
+
|
|
|
+ data_to_rx = dev->out_req->length;
|
|
|
+ tmp = data_to_rx;
|
|
|
+ do {
|
|
|
+ dev->out_req->length = data_to_rx;
|
|
|
+ debug("dev->out_req->length:%d dev->rxdata:%d\n",
|
|
|
+ dev->out_req->length, dev->rxdata);
|
|
|
+
|
|
|
+ status = usb_ep_queue(dev->out_ep, dev->out_req, 0);
|
|
|
+ if (status) {
|
|
|
+ error("kill %s: resubmit %d bytes --> %d",
|
|
|
+ dev->out_ep->name, dev->out_req->length, status);
|
|
|
+ usb_ep_set_halt(dev->out_ep);
|
|
|
+ return -EAGAIN;
|
|
|
+ }
|
|
|
+
|
|
|
+ while (!dev->rxdata) {
|
|
|
+ usb_gadget_handle_interrupts();
|
|
|
+ if (ctrlc())
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+ dev->rxdata = 0;
|
|
|
+ data_to_rx -= dev->out_req->actual;
|
|
|
+ } while (data_to_rx);
|
|
|
+
|
|
|
+ return tmp;
|
|
|
+}
|
|
|
+
|
|
|
+static void thor_tx_data(unsigned char *data, int len)
|
|
|
+{
|
|
|
+ struct thor_dev *dev = thor_func->dev;
|
|
|
+ unsigned char *ptr = dev->in_req->buf;
|
|
|
+ int status;
|
|
|
+
|
|
|
+ memset(ptr, 0, len);
|
|
|
+ memcpy(ptr, data, len);
|
|
|
+
|
|
|
+ dev->in_req->length = len;
|
|
|
+
|
|
|
+ debug("%s: dev->in_req->length:%d to_cpy:%d\n", __func__,
|
|
|
+ dev->in_req->length, sizeof(data));
|
|
|
+
|
|
|
+ status = usb_ep_queue(dev->in_ep, dev->in_req, 0);
|
|
|
+ if (status) {
|
|
|
+ error("kill %s: resubmit %d bytes --> %d",
|
|
|
+ dev->in_ep->name, dev->in_req->length, status);
|
|
|
+ usb_ep_set_halt(dev->in_ep);
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Wait until tx interrupt received */
|
|
|
+ while (!dev->txdata)
|
|
|
+ usb_gadget_handle_interrupts();
|
|
|
+
|
|
|
+ dev->txdata = 0;
|
|
|
+}
|
|
|
+
|
|
|
+static void thor_rx_tx_complete(struct usb_ep *ep, struct usb_request *req)
|
|
|
+{
|
|
|
+ struct thor_dev *dev = thor_func->dev;
|
|
|
+ int status = req->status;
|
|
|
+
|
|
|
+ debug("%s: ep_ptr:%p, req_ptr:%p\n", __func__, ep, req);
|
|
|
+ switch (status) {
|
|
|
+ case 0:
|
|
|
+ if (ep == dev->out_ep)
|
|
|
+ dev->rxdata = 1;
|
|
|
+ else
|
|
|
+ dev->txdata = 1;
|
|
|
+
|
|
|
+ break;
|
|
|
+
|
|
|
+ /* this endpoint is normally active while we're configured */
|
|
|
+ case -ECONNABORTED: /* hardware forced ep reset */
|
|
|
+ case -ECONNRESET: /* request dequeued */
|
|
|
+ case -ESHUTDOWN: /* disconnect from host */
|
|
|
+ case -EREMOTEIO: /* short read */
|
|
|
+ case -EOVERFLOW:
|
|
|
+ error("ERROR:%d", status);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ debug("%s complete --> %d, %d/%d\n", ep->name,
|
|
|
+ status, req->actual, req->length);
|
|
|
+}
|
|
|
+
|
|
|
+static struct usb_request *thor_start_ep(struct usb_ep *ep)
|
|
|
+{
|
|
|
+ struct usb_request *req;
|
|
|
+
|
|
|
+ req = alloc_ep_req(ep, ep->maxpacket);
|
|
|
+ debug("%s: ep:%p req:%p\n", __func__, ep, req);
|
|
|
+
|
|
|
+ if (!req)
|
|
|
+ return NULL;
|
|
|
+
|
|
|
+ memset(req->buf, 0, req->length);
|
|
|
+ req->complete = thor_rx_tx_complete;
|
|
|
+
|
|
|
+ memset(req->buf, 0x55, req->length);
|
|
|
+
|
|
|
+ return req;
|
|
|
+}
|
|
|
+
|
|
|
+static void thor_setup_complete(struct usb_ep *ep, struct usb_request *req)
|
|
|
+{
|
|
|
+ if (req->status || req->actual != req->length)
|
|
|
+ debug("setup complete --> %d, %d/%d\n",
|
|
|
+ req->status, req->actual, req->length);
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+thor_func_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
|
|
|
+{
|
|
|
+ struct thor_dev *dev = thor_func->dev;
|
|
|
+ struct usb_request *req = dev->req;
|
|
|
+ struct usb_gadget *gadget = dev->gadget;
|
|
|
+ int value = 0;
|
|
|
+
|
|
|
+ u16 len = le16_to_cpu(ctrl->wLength);
|
|
|
+
|
|
|
+ debug("Req_Type: 0x%x Req: 0x%x wValue: 0x%x wIndex: 0x%x wLen: 0x%x\n",
|
|
|
+ ctrl->bRequestType, ctrl->bRequest, ctrl->wValue, ctrl->wIndex,
|
|
|
+ ctrl->wLength);
|
|
|
+
|
|
|
+ switch (ctrl->bRequest) {
|
|
|
+ case USB_CDC_REQ_SET_CONTROL_LINE_STATE:
|
|
|
+ value = 0;
|
|
|
+ break;
|
|
|
+ case USB_CDC_REQ_SET_LINE_CODING:
|
|
|
+ value = len;
|
|
|
+ /* Line Coding set done = configuration done */
|
|
|
+ thor_func->dev->configuration_done = 1;
|
|
|
+ break;
|
|
|
+
|
|
|
+ default:
|
|
|
+ error("thor_setup: unknown request: %d", ctrl->bRequest);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (value >= 0) {
|
|
|
+ req->length = value;
|
|
|
+ req->zero = value < len;
|
|
|
+ value = usb_ep_queue(gadget->ep0, req, 0);
|
|
|
+ if (value < 0) {
|
|
|
+ debug("%s: ep_queue: %d\n", __func__, value);
|
|
|
+ req->status = 0;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return value;
|
|
|
+}
|
|
|
+
|
|
|
+/* Specific to the THOR protocol */
|
|
|
+static void thor_set_dma(void *addr, int len)
|
|
|
+{
|
|
|
+ struct thor_dev *dev = thor_func->dev;
|
|
|
+
|
|
|
+ debug("in_req:%p, out_req:%p\n", dev->in_req, dev->out_req);
|
|
|
+ debug("addr:%p, len:%d\n", addr, len);
|
|
|
+
|
|
|
+ dev->out_req->buf = addr;
|
|
|
+ dev->out_req->length = len;
|
|
|
+}
|
|
|
+
|
|
|
+int thor_init(void)
|
|
|
+{
|
|
|
+ struct thor_dev *dev = thor_func->dev;
|
|
|
+
|
|
|
+ /* Wait for a device enumeration and configuration settings */
|
|
|
+ debug("THOR enumeration/configuration setting....\n");
|
|
|
+ while (!dev->configuration_done)
|
|
|
+ usb_gadget_handle_interrupts();
|
|
|
+
|
|
|
+ thor_set_dma(thor_rx_data_buf, strlen("THOR"));
|
|
|
+ /* detect the download request from Host PC */
|
|
|
+ if (thor_rx_data() < 0) {
|
|
|
+ printf("%s: Data not received!\n", __func__);
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!strncmp((char *)thor_rx_data_buf, "THOR", strlen("THOR"))) {
|
|
|
+ puts("Download request from the Host PC\n");
|
|
|
+ udelay(30 * 1000); /* 30 ms */
|
|
|
+
|
|
|
+ strcpy((char *)thor_tx_data_buf, "ROHT");
|
|
|
+ thor_tx_data(thor_tx_data_buf, strlen("ROHT"));
|
|
|
+ } else {
|
|
|
+ puts("Wrong reply information\n");
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+int thor_handle(void)
|
|
|
+{
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ /* receive the data from Host PC */
|
|
|
+ while (1) {
|
|
|
+ thor_set_dma(thor_rx_data_buf, sizeof(struct rqt_box));
|
|
|
+ ret = thor_rx_data();
|
|
|
+
|
|
|
+ if (ret > 0) {
|
|
|
+ ret = process_data();
|
|
|
+ if (ret < 0)
|
|
|
+ return ret;
|
|
|
+ } else {
|
|
|
+ printf("%s: No data received!\n", __func__);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int thor_func_bind(struct usb_configuration *c, struct usb_function *f)
|
|
|
+{
|
|
|
+ struct usb_gadget *gadget = c->cdev->gadget;
|
|
|
+ struct f_thor *f_thor = func_to_thor(f);
|
|
|
+ struct thor_dev *dev;
|
|
|
+ struct usb_ep *ep;
|
|
|
+ int status;
|
|
|
+
|
|
|
+ thor_func = f_thor;
|
|
|
+ dev = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(*dev));
|
|
|
+ if (!dev)
|
|
|
+ return -ENOMEM;
|
|
|
+
|
|
|
+ memset(dev, 0, sizeof(*dev));
|
|
|
+ dev->gadget = gadget;
|
|
|
+ f_thor->dev = dev;
|
|
|
+
|
|
|
+ debug("%s: usb_configuration: 0x%p usb_function: 0x%p\n",
|
|
|
+ __func__, c, f);
|
|
|
+ debug("f_thor: 0x%p thor: 0x%p\n", f_thor, dev);
|
|
|
+
|
|
|
+ /* EP0 */
|
|
|
+ /* preallocate control response and buffer */
|
|
|
+ dev->req = usb_ep_alloc_request(gadget->ep0, 0);
|
|
|
+ if (!dev->req) {
|
|
|
+ status = -ENOMEM;
|
|
|
+ goto fail;
|
|
|
+ }
|
|
|
+ dev->req->buf = memalign(CONFIG_SYS_CACHELINE_SIZE,
|
|
|
+ gadget->ep0->maxpacket);
|
|
|
+ if (!dev->req->buf) {
|
|
|
+ status = -ENOMEM;
|
|
|
+ goto fail;
|
|
|
+ }
|
|
|
+
|
|
|
+ dev->req->complete = thor_setup_complete;
|
|
|
+
|
|
|
+ /* DYNAMIC interface numbers assignments */
|
|
|
+ status = usb_interface_id(c, f);
|
|
|
+
|
|
|
+ if (status < 0)
|
|
|
+ goto fail;
|
|
|
+
|
|
|
+ thor_downloader_intf_int.bInterfaceNumber = status;
|
|
|
+ thor_downloader_cdc_union.bMasterInterface0 = status;
|
|
|
+
|
|
|
+ status = usb_interface_id(c, f);
|
|
|
+
|
|
|
+ if (status < 0)
|
|
|
+ goto fail;
|
|
|
+
|
|
|
+ thor_downloader_intf_data.bInterfaceNumber = status;
|
|
|
+ thor_downloader_cdc_union.bSlaveInterface0 = status;
|
|
|
+
|
|
|
+ /* allocate instance-specific endpoints */
|
|
|
+ ep = usb_ep_autoconfig(gadget, &fs_in_desc);
|
|
|
+ if (!ep) {
|
|
|
+ status = -ENODEV;
|
|
|
+ goto fail;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (gadget_is_dualspeed(gadget)) {
|
|
|
+ hs_in_desc.bEndpointAddress =
|
|
|
+ fs_in_desc.bEndpointAddress;
|
|
|
+ }
|
|
|
+
|
|
|
+ dev->in_ep = ep; /* Store IN EP for enabling @ setup */
|
|
|
+
|
|
|
+ ep = usb_ep_autoconfig(gadget, &fs_out_desc);
|
|
|
+ if (!ep) {
|
|
|
+ status = -ENODEV;
|
|
|
+ goto fail;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (gadget_is_dualspeed(gadget))
|
|
|
+ hs_out_desc.bEndpointAddress =
|
|
|
+ fs_out_desc.bEndpointAddress;
|
|
|
+
|
|
|
+ dev->out_ep = ep; /* Store OUT EP for enabling @ setup */
|
|
|
+
|
|
|
+ ep = usb_ep_autoconfig(gadget, &fs_int_desc);
|
|
|
+ if (!ep) {
|
|
|
+ status = -ENODEV;
|
|
|
+ goto fail;
|
|
|
+ }
|
|
|
+
|
|
|
+ dev->int_ep = ep;
|
|
|
+
|
|
|
+ if (gadget_is_dualspeed(gadget)) {
|
|
|
+ hs_int_desc.bEndpointAddress =
|
|
|
+ fs_int_desc.bEndpointAddress;
|
|
|
+
|
|
|
+ f->hs_descriptors = (struct usb_descriptor_header **)
|
|
|
+ &hs_thor_downloader_function;
|
|
|
+
|
|
|
+ if (!f->hs_descriptors)
|
|
|
+ goto fail;
|
|
|
+ }
|
|
|
+
|
|
|
+ debug("%s: out_ep:%p out_req:%p\n", __func__,
|
|
|
+ dev->out_ep, dev->out_req);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ fail:
|
|
|
+ free(dev);
|
|
|
+ return status;
|
|
|
+}
|
|
|
+
|
|
|
+static void free_ep_req(struct usb_ep *ep, struct usb_request *req)
|
|
|
+{
|
|
|
+ free(req->buf);
|
|
|
+ usb_ep_free_request(ep, req);
|
|
|
+}
|
|
|
+
|
|
|
+static void thor_unbind(struct usb_configuration *c, struct usb_function *f)
|
|
|
+{
|
|
|
+ struct f_thor *f_thor = func_to_thor(f);
|
|
|
+ struct thor_dev *dev = f_thor->dev;
|
|
|
+
|
|
|
+ free(dev);
|
|
|
+ memset(thor_func, 0, sizeof(*thor_func));
|
|
|
+ thor_func = NULL;
|
|
|
+}
|
|
|
+
|
|
|
+static void thor_func_disable(struct usb_function *f)
|
|
|
+{
|
|
|
+ struct f_thor *f_thor = func_to_thor(f);
|
|
|
+ struct thor_dev *dev = f_thor->dev;
|
|
|
+
|
|
|
+ debug("%s:\n", __func__);
|
|
|
+
|
|
|
+ /* Avoid freeing memory when ep is still claimed */
|
|
|
+ if (dev->in_ep->driver_data) {
|
|
|
+ free_ep_req(dev->in_ep, dev->in_req);
|
|
|
+ usb_ep_disable(dev->in_ep);
|
|
|
+ dev->in_ep->driver_data = NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (dev->out_ep->driver_data) {
|
|
|
+ dev->out_req->buf = NULL;
|
|
|
+ usb_ep_free_request(dev->out_ep, dev->out_req);
|
|
|
+ usb_ep_disable(dev->out_ep);
|
|
|
+ dev->out_ep->driver_data = NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (dev->int_ep->driver_data) {
|
|
|
+ usb_ep_disable(dev->int_ep);
|
|
|
+ dev->int_ep->driver_data = NULL;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static int thor_eps_setup(struct usb_function *f)
|
|
|
+{
|
|
|
+ struct usb_composite_dev *cdev = f->config->cdev;
|
|
|
+ struct usb_gadget *gadget = cdev->gadget;
|
|
|
+ struct thor_dev *dev = thor_func->dev;
|
|
|
+ struct usb_endpoint_descriptor *d;
|
|
|
+ struct usb_request *req;
|
|
|
+ struct usb_ep *ep;
|
|
|
+ int result;
|
|
|
+
|
|
|
+ ep = dev->in_ep;
|
|
|
+ d = ep_desc(gadget, &hs_in_desc, &fs_in_desc);
|
|
|
+ debug("(d)bEndpointAddress: 0x%x\n", d->bEndpointAddress);
|
|
|
+
|
|
|
+ result = usb_ep_enable(ep, d);
|
|
|
+ if (result)
|
|
|
+ goto exit;
|
|
|
+
|
|
|
+ ep->driver_data = cdev; /* claim */
|
|
|
+ req = thor_start_ep(ep);
|
|
|
+ if (!req) {
|
|
|
+ usb_ep_disable(ep);
|
|
|
+ result = -EIO;
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ dev->in_req = req;
|
|
|
+ ep = dev->out_ep;
|
|
|
+ d = ep_desc(gadget, &hs_out_desc, &fs_out_desc);
|
|
|
+ debug("(d)bEndpointAddress: 0x%x\n", d->bEndpointAddress);
|
|
|
+
|
|
|
+ result = usb_ep_enable(ep, d);
|
|
|
+ if (result)
|
|
|
+ goto exit;
|
|
|
+
|
|
|
+ ep->driver_data = cdev; /* claim */
|
|
|
+ req = thor_start_ep(ep);
|
|
|
+ if (!req) {
|
|
|
+ usb_ep_disable(ep);
|
|
|
+ result = -EIO;
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ dev->out_req = req;
|
|
|
+ /* ACM control EP */
|
|
|
+ ep = dev->int_ep;
|
|
|
+ ep->driver_data = cdev; /* claim */
|
|
|
+
|
|
|
+ exit:
|
|
|
+ return result;
|
|
|
+}
|
|
|
+
|
|
|
+static int thor_func_set_alt(struct usb_function *f,
|
|
|
+ unsigned intf, unsigned alt)
|
|
|
+{
|
|
|
+ struct thor_dev *dev = thor_func->dev;
|
|
|
+ int result;
|
|
|
+
|
|
|
+ debug("%s: func: %s intf: %d alt: %d\n",
|
|
|
+ __func__, f->name, intf, alt);
|
|
|
+
|
|
|
+ switch (intf) {
|
|
|
+ case 0:
|
|
|
+ debug("ACM INTR interface\n");
|
|
|
+ break;
|
|
|
+ case 1:
|
|
|
+ debug("Communication Data interface\n");
|
|
|
+ result = thor_eps_setup(f);
|
|
|
+ if (result)
|
|
|
+ error("%s: EPs setup failed!", __func__);
|
|
|
+ dev->configuration_done = 1;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int thor_func_init(struct usb_configuration *c)
|
|
|
+{
|
|
|
+ struct f_thor *f_thor;
|
|
|
+ int status;
|
|
|
+
|
|
|
+ debug("%s: cdev: 0x%p\n", __func__, c->cdev);
|
|
|
+
|
|
|
+ f_thor = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(*f_thor));
|
|
|
+ if (!f_thor)
|
|
|
+ return -ENOMEM;
|
|
|
+
|
|
|
+ memset(f_thor, 0, sizeof(*f_thor));
|
|
|
+
|
|
|
+ f_thor->usb_function.name = "f_thor";
|
|
|
+ f_thor->usb_function.bind = thor_func_bind;
|
|
|
+ f_thor->usb_function.unbind = thor_unbind;
|
|
|
+ f_thor->usb_function.setup = thor_func_setup;
|
|
|
+ f_thor->usb_function.set_alt = thor_func_set_alt;
|
|
|
+ f_thor->usb_function.disable = thor_func_disable;
|
|
|
+
|
|
|
+ status = usb_add_function(c, &f_thor->usb_function);
|
|
|
+ if (status)
|
|
|
+ free(f_thor);
|
|
|
+
|
|
|
+ return status;
|
|
|
+}
|
|
|
+
|
|
|
+int thor_add(struct usb_configuration *c)
|
|
|
+{
|
|
|
+ debug("%s:\n", __func__);
|
|
|
+ return thor_func_init(c);
|
|
|
+}
|