112bd3c8bSSascha Wildner /* $NetBSD: uchcom.c,v 1.1 2007/09/03 17:57:37 tshiozak Exp $ */
212bd3c8bSSascha Wildner
312bd3c8bSSascha Wildner /*-
412bd3c8bSSascha Wildner * Copyright (c) 2007, Takanori Watanabe
512bd3c8bSSascha Wildner * All rights reserved.
612bd3c8bSSascha Wildner *
712bd3c8bSSascha Wildner * Redistribution and use in source and binary forms, with or without
812bd3c8bSSascha Wildner * modification, are permitted provided that the following conditions
912bd3c8bSSascha Wildner * are met:
1012bd3c8bSSascha Wildner * 1. Redistributions of source code must retain the above copyright
1112bd3c8bSSascha Wildner * notice, this list of conditions and the following disclaimer.
1212bd3c8bSSascha Wildner * 2. Redistributions in binary form must reproduce the above copyright
1312bd3c8bSSascha Wildner * notice, this list of conditions and the following disclaimer in the
1412bd3c8bSSascha Wildner * documentation and/or other materials provided with the distribution.
1512bd3c8bSSascha Wildner *
1612bd3c8bSSascha Wildner * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1712bd3c8bSSascha Wildner * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1812bd3c8bSSascha Wildner * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1912bd3c8bSSascha Wildner * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
2012bd3c8bSSascha Wildner * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2112bd3c8bSSascha Wildner * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2212bd3c8bSSascha Wildner * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2312bd3c8bSSascha Wildner * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2412bd3c8bSSascha Wildner * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2512bd3c8bSSascha Wildner * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2612bd3c8bSSascha Wildner * SUCH DAMAGE.
2712bd3c8bSSascha Wildner */
2812bd3c8bSSascha Wildner
2912bd3c8bSSascha Wildner /*
3012bd3c8bSSascha Wildner * Copyright (c) 2007 The NetBSD Foundation, Inc.
3112bd3c8bSSascha Wildner * All rights reserved.
3212bd3c8bSSascha Wildner *
3312bd3c8bSSascha Wildner * This code is derived from software contributed to The NetBSD Foundation
3412bd3c8bSSascha Wildner * by Takuya SHIOZAKI (tshiozak@netbsd.org).
3512bd3c8bSSascha Wildner *
3612bd3c8bSSascha Wildner * Redistribution and use in source and binary forms, with or without
3712bd3c8bSSascha Wildner * modification, are permitted provided that the following conditions
3812bd3c8bSSascha Wildner * are met:
3912bd3c8bSSascha Wildner * 1. Redistributions of source code must retain the above copyright
4012bd3c8bSSascha Wildner * notice, this list of conditions and the following disclaimer.
4112bd3c8bSSascha Wildner * 2. Redistributions in binary form must reproduce the above copyright
4212bd3c8bSSascha Wildner * notice, this list of conditions and the following disclaimer in the
4312bd3c8bSSascha Wildner * documentation and/or other materials provided with the distribution.
4412bd3c8bSSascha Wildner *
4512bd3c8bSSascha Wildner * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
4612bd3c8bSSascha Wildner * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
4712bd3c8bSSascha Wildner * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
4812bd3c8bSSascha Wildner * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
4912bd3c8bSSascha Wildner * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
5012bd3c8bSSascha Wildner * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
5112bd3c8bSSascha Wildner * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
5212bd3c8bSSascha Wildner * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
5312bd3c8bSSascha Wildner * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
5412bd3c8bSSascha Wildner * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
5512bd3c8bSSascha Wildner * POSSIBILITY OF SUCH DAMAGE.
5612bd3c8bSSascha Wildner */
5712bd3c8bSSascha Wildner
5812bd3c8bSSascha Wildner /*
5912bd3c8bSSascha Wildner * Driver for WinChipHead CH341/340, the worst USB-serial chip in the
6012bd3c8bSSascha Wildner * world.
6112bd3c8bSSascha Wildner */
6212bd3c8bSSascha Wildner
6312bd3c8bSSascha Wildner #include <sys/stdint.h>
6412bd3c8bSSascha Wildner #include <sys/param.h>
6512bd3c8bSSascha Wildner #include <sys/queue.h>
6612bd3c8bSSascha Wildner #include <sys/types.h>
6712bd3c8bSSascha Wildner #include <sys/systm.h>
6812bd3c8bSSascha Wildner #include <sys/kernel.h>
6912bd3c8bSSascha Wildner #include <sys/bus.h>
7012bd3c8bSSascha Wildner #include <sys/module.h>
7112bd3c8bSSascha Wildner #include <sys/lock.h>
7212bd3c8bSSascha Wildner #include <sys/condvar.h>
7312bd3c8bSSascha Wildner #include <sys/sysctl.h>
7412bd3c8bSSascha Wildner #include <sys/unistd.h>
7512bd3c8bSSascha Wildner #include <sys/callout.h>
7612bd3c8bSSascha Wildner #include <sys/malloc.h>
77*2b3f93eaSMatthew Dillon #include <sys/caps.h>
7812bd3c8bSSascha Wildner
79a81829f2SSascha Wildner #include <bus/u4b/usb.h>
80a81829f2SSascha Wildner #include <bus/u4b/usbdi.h>
81a81829f2SSascha Wildner #include <bus/u4b/usbdi_util.h>
8259f64dacSMarkus Pfeiffer
8359f64dacSMarkus Pfeiffer #include "usbdevs.h"
8412bd3c8bSSascha Wildner
8512bd3c8bSSascha Wildner #define USB_DEBUG_VAR uchcom_debug
86a81829f2SSascha Wildner #include <bus/u4b/usb_debug.h>
87a81829f2SSascha Wildner #include <bus/u4b/usb_process.h>
8812bd3c8bSSascha Wildner
89a81829f2SSascha Wildner #include <bus/u4b/serial/usb_serial.h>
9012bd3c8bSSascha Wildner
9112bd3c8bSSascha Wildner #ifdef USB_DEBUG
9212bd3c8bSSascha Wildner static int uchcom_debug = 0;
9312bd3c8bSSascha Wildner
9412bd3c8bSSascha Wildner static SYSCTL_NODE(_hw_usb, OID_AUTO, uchcom, CTLFLAG_RW, 0, "USB uchcom");
95a9b765b7SSascha Wildner SYSCTL_INT(_hw_usb_uchcom, OID_AUTO, debug, CTLFLAG_RW,
9612bd3c8bSSascha Wildner &uchcom_debug, 0, "uchcom debug level");
9712bd3c8bSSascha Wildner #endif
9812bd3c8bSSascha Wildner
9912bd3c8bSSascha Wildner #define UCHCOM_IFACE_INDEX 0
10012bd3c8bSSascha Wildner #define UCHCOM_CONFIG_INDEX 0
10112bd3c8bSSascha Wildner
10212bd3c8bSSascha Wildner #define UCHCOM_REV_CH340 0x0250
10312bd3c8bSSascha Wildner #define UCHCOM_INPUT_BUF_SIZE 8
10412bd3c8bSSascha Wildner
10512bd3c8bSSascha Wildner #define UCHCOM_REQ_GET_VERSION 0x5F
10612bd3c8bSSascha Wildner #define UCHCOM_REQ_READ_REG 0x95
10712bd3c8bSSascha Wildner #define UCHCOM_REQ_WRITE_REG 0x9A
10812bd3c8bSSascha Wildner #define UCHCOM_REQ_RESET 0xA1
10912bd3c8bSSascha Wildner #define UCHCOM_REQ_SET_DTRRTS 0xA4
11012bd3c8bSSascha Wildner
11112bd3c8bSSascha Wildner #define UCHCOM_REG_STAT1 0x06
11212bd3c8bSSascha Wildner #define UCHCOM_REG_STAT2 0x07
11312bd3c8bSSascha Wildner #define UCHCOM_REG_BPS_PRE 0x12
11412bd3c8bSSascha Wildner #define UCHCOM_REG_BPS_DIV 0x13
11512bd3c8bSSascha Wildner #define UCHCOM_REG_BPS_MOD 0x14
11612bd3c8bSSascha Wildner #define UCHCOM_REG_BPS_PAD 0x0F
11712bd3c8bSSascha Wildner #define UCHCOM_REG_BREAK1 0x05
11812bd3c8bSSascha Wildner #define UCHCOM_REG_BREAK2 0x18
11912bd3c8bSSascha Wildner #define UCHCOM_REG_LCR1 0x18
12012bd3c8bSSascha Wildner #define UCHCOM_REG_LCR2 0x25
12112bd3c8bSSascha Wildner
12212bd3c8bSSascha Wildner #define UCHCOM_VER_20 0x20
12312bd3c8bSSascha Wildner
12412bd3c8bSSascha Wildner #define UCHCOM_BASE_UNKNOWN 0
12512bd3c8bSSascha Wildner #define UCHCOM_BPS_MOD_BASE 20000000
12612bd3c8bSSascha Wildner #define UCHCOM_BPS_MOD_BASE_OFS 1100
12712bd3c8bSSascha Wildner
12812bd3c8bSSascha Wildner #define UCHCOM_DTR_MASK 0x20
12912bd3c8bSSascha Wildner #define UCHCOM_RTS_MASK 0x40
13012bd3c8bSSascha Wildner
13112bd3c8bSSascha Wildner #define UCHCOM_BRK1_MASK 0x01
13212bd3c8bSSascha Wildner #define UCHCOM_BRK2_MASK 0x40
13312bd3c8bSSascha Wildner
13412bd3c8bSSascha Wildner #define UCHCOM_LCR1_MASK 0xAF
13512bd3c8bSSascha Wildner #define UCHCOM_LCR2_MASK 0x07
13612bd3c8bSSascha Wildner #define UCHCOM_LCR1_PARENB 0x80
13712bd3c8bSSascha Wildner #define UCHCOM_LCR2_PAREVEN 0x07
13812bd3c8bSSascha Wildner #define UCHCOM_LCR2_PARODD 0x06
13912bd3c8bSSascha Wildner #define UCHCOM_LCR2_PARMARK 0x05
14012bd3c8bSSascha Wildner #define UCHCOM_LCR2_PARSPACE 0x04
14112bd3c8bSSascha Wildner
14212bd3c8bSSascha Wildner #define UCHCOM_INTR_STAT1 0x02
14312bd3c8bSSascha Wildner #define UCHCOM_INTR_STAT2 0x03
14412bd3c8bSSascha Wildner #define UCHCOM_INTR_LEAST 4
14512bd3c8bSSascha Wildner
14612bd3c8bSSascha Wildner #define UCHCOM_BULK_BUF_SIZE 1024 /* bytes */
14712bd3c8bSSascha Wildner
14812bd3c8bSSascha Wildner enum {
14912bd3c8bSSascha Wildner UCHCOM_BULK_DT_WR,
15012bd3c8bSSascha Wildner UCHCOM_BULK_DT_RD,
15112bd3c8bSSascha Wildner UCHCOM_INTR_DT_RD,
15212bd3c8bSSascha Wildner UCHCOM_N_TRANSFER,
15312bd3c8bSSascha Wildner };
15412bd3c8bSSascha Wildner
15512bd3c8bSSascha Wildner struct uchcom_softc {
15612bd3c8bSSascha Wildner struct ucom_super_softc sc_super_ucom;
15712bd3c8bSSascha Wildner struct ucom_softc sc_ucom;
15812bd3c8bSSascha Wildner
15912bd3c8bSSascha Wildner struct usb_xfer *sc_xfer[UCHCOM_N_TRANSFER];
16012bd3c8bSSascha Wildner struct usb_device *sc_udev;
161a81829f2SSascha Wildner struct lock sc_lock;
16212bd3c8bSSascha Wildner
16312bd3c8bSSascha Wildner uint8_t sc_dtr; /* local copy */
16412bd3c8bSSascha Wildner uint8_t sc_rts; /* local copy */
16512bd3c8bSSascha Wildner uint8_t sc_version;
16612bd3c8bSSascha Wildner uint8_t sc_msr;
16712bd3c8bSSascha Wildner uint8_t sc_lsr; /* local status register */
16812bd3c8bSSascha Wildner };
16912bd3c8bSSascha Wildner
17012bd3c8bSSascha Wildner struct uchcom_divider {
17112bd3c8bSSascha Wildner uint8_t dv_prescaler;
17212bd3c8bSSascha Wildner uint8_t dv_div;
17312bd3c8bSSascha Wildner uint8_t dv_mod;
17412bd3c8bSSascha Wildner };
17512bd3c8bSSascha Wildner
17612bd3c8bSSascha Wildner struct uchcom_divider_record {
17712bd3c8bSSascha Wildner uint32_t dvr_high;
17812bd3c8bSSascha Wildner uint32_t dvr_low;
17912bd3c8bSSascha Wildner uint32_t dvr_base_clock;
18012bd3c8bSSascha Wildner struct uchcom_divider dvr_divider;
18112bd3c8bSSascha Wildner };
18212bd3c8bSSascha Wildner
18312bd3c8bSSascha Wildner static const struct uchcom_divider_record dividers[] =
18412bd3c8bSSascha Wildner {
18512bd3c8bSSascha Wildner {307200, 307200, UCHCOM_BASE_UNKNOWN, {7, 0xD9, 0}},
18612bd3c8bSSascha Wildner {921600, 921600, UCHCOM_BASE_UNKNOWN, {7, 0xF3, 0}},
18712bd3c8bSSascha Wildner {2999999, 23530, 6000000, {3, 0, 0}},
18812bd3c8bSSascha Wildner {23529, 2942, 750000, {2, 0, 0}},
18912bd3c8bSSascha Wildner {2941, 368, 93750, {1, 0, 0}},
19012bd3c8bSSascha Wildner {367, 1, 11719, {0, 0, 0}},
19112bd3c8bSSascha Wildner };
19212bd3c8bSSascha Wildner
19312bd3c8bSSascha Wildner static const STRUCT_USB_HOST_ID uchcom_devs[] = {
19412bd3c8bSSascha Wildner {USB_VPI(USB_VENDOR_WCH, USB_PRODUCT_WCH_CH341SER, 0)},
19512bd3c8bSSascha Wildner {USB_VPI(USB_VENDOR_WCH2, USB_PRODUCT_WCH2_CH341SER, 0)},
19612bd3c8bSSascha Wildner };
19712bd3c8bSSascha Wildner
19812bd3c8bSSascha Wildner /* protypes */
19912bd3c8bSSascha Wildner
20012bd3c8bSSascha Wildner static int uchcom_pre_param(struct ucom_softc *, struct termios *);
20112bd3c8bSSascha Wildner static void uchcom_cfg_get_status(struct ucom_softc *, uint8_t *,
20212bd3c8bSSascha Wildner uint8_t *);
20312bd3c8bSSascha Wildner static void uchcom_cfg_open(struct ucom_softc *ucom);
20412bd3c8bSSascha Wildner static void uchcom_cfg_param(struct ucom_softc *, struct termios *);
20512bd3c8bSSascha Wildner static void uchcom_cfg_set_break(struct ucom_softc *, uint8_t);
20612bd3c8bSSascha Wildner static void uchcom_cfg_set_dtr(struct ucom_softc *, uint8_t);
20712bd3c8bSSascha Wildner static void uchcom_cfg_set_rts(struct ucom_softc *, uint8_t);
20812bd3c8bSSascha Wildner static void uchcom_start_read(struct ucom_softc *);
20912bd3c8bSSascha Wildner static void uchcom_start_write(struct ucom_softc *);
21012bd3c8bSSascha Wildner static void uchcom_stop_read(struct ucom_softc *);
21112bd3c8bSSascha Wildner static void uchcom_stop_write(struct ucom_softc *);
21212bd3c8bSSascha Wildner static void uchcom_update_version(struct uchcom_softc *);
21312bd3c8bSSascha Wildner static void uchcom_convert_status(struct uchcom_softc *, uint8_t);
21412bd3c8bSSascha Wildner static void uchcom_update_status(struct uchcom_softc *);
21512bd3c8bSSascha Wildner static void uchcom_set_dtr_rts(struct uchcom_softc *);
21612bd3c8bSSascha Wildner static int uchcom_calc_divider_settings(struct uchcom_divider *, uint32_t);
21712bd3c8bSSascha Wildner static void uchcom_set_baudrate(struct uchcom_softc *, uint32_t);
21812bd3c8bSSascha Wildner static void uchcom_poll(struct ucom_softc *ucom);
21912bd3c8bSSascha Wildner
22012bd3c8bSSascha Wildner static device_probe_t uchcom_probe;
22112bd3c8bSSascha Wildner static device_attach_t uchcom_attach;
22212bd3c8bSSascha Wildner static device_detach_t uchcom_detach;
22312bd3c8bSSascha Wildner
22412bd3c8bSSascha Wildner static usb_callback_t uchcom_intr_callback;
22512bd3c8bSSascha Wildner static usb_callback_t uchcom_write_callback;
22612bd3c8bSSascha Wildner static usb_callback_t uchcom_read_callback;
22712bd3c8bSSascha Wildner
22812bd3c8bSSascha Wildner static const struct usb_config uchcom_config_data[UCHCOM_N_TRANSFER] = {
22912bd3c8bSSascha Wildner
23012bd3c8bSSascha Wildner [UCHCOM_BULK_DT_WR] = {
23112bd3c8bSSascha Wildner .type = UE_BULK,
23212bd3c8bSSascha Wildner .endpoint = UE_ADDR_ANY,
23312bd3c8bSSascha Wildner .direction = UE_DIR_OUT,
23412bd3c8bSSascha Wildner .bufsize = UCHCOM_BULK_BUF_SIZE,
23512bd3c8bSSascha Wildner .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
23612bd3c8bSSascha Wildner .callback = &uchcom_write_callback,
23712bd3c8bSSascha Wildner },
23812bd3c8bSSascha Wildner
23912bd3c8bSSascha Wildner [UCHCOM_BULK_DT_RD] = {
24012bd3c8bSSascha Wildner .type = UE_BULK,
24112bd3c8bSSascha Wildner .endpoint = UE_ADDR_ANY,
24212bd3c8bSSascha Wildner .direction = UE_DIR_IN,
24312bd3c8bSSascha Wildner .bufsize = UCHCOM_BULK_BUF_SIZE,
24412bd3c8bSSascha Wildner .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
24512bd3c8bSSascha Wildner .callback = &uchcom_read_callback,
24612bd3c8bSSascha Wildner },
24712bd3c8bSSascha Wildner
24812bd3c8bSSascha Wildner [UCHCOM_INTR_DT_RD] = {
24912bd3c8bSSascha Wildner .type = UE_INTERRUPT,
25012bd3c8bSSascha Wildner .endpoint = UE_ADDR_ANY,
25112bd3c8bSSascha Wildner .direction = UE_DIR_IN,
25212bd3c8bSSascha Wildner .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
25312bd3c8bSSascha Wildner .bufsize = 0, /* use wMaxPacketSize */
25412bd3c8bSSascha Wildner .callback = &uchcom_intr_callback,
25512bd3c8bSSascha Wildner },
25612bd3c8bSSascha Wildner };
25712bd3c8bSSascha Wildner
25812bd3c8bSSascha Wildner static struct ucom_callback uchcom_callback = {
25912bd3c8bSSascha Wildner .ucom_cfg_get_status = &uchcom_cfg_get_status,
26012bd3c8bSSascha Wildner .ucom_cfg_set_dtr = &uchcom_cfg_set_dtr,
26112bd3c8bSSascha Wildner .ucom_cfg_set_rts = &uchcom_cfg_set_rts,
26212bd3c8bSSascha Wildner .ucom_cfg_set_break = &uchcom_cfg_set_break,
26312bd3c8bSSascha Wildner .ucom_cfg_open = &uchcom_cfg_open,
26412bd3c8bSSascha Wildner .ucom_cfg_param = &uchcom_cfg_param,
26512bd3c8bSSascha Wildner .ucom_pre_param = &uchcom_pre_param,
26612bd3c8bSSascha Wildner .ucom_start_read = &uchcom_start_read,
26712bd3c8bSSascha Wildner .ucom_stop_read = &uchcom_stop_read,
26812bd3c8bSSascha Wildner .ucom_start_write = &uchcom_start_write,
26912bd3c8bSSascha Wildner .ucom_stop_write = &uchcom_stop_write,
27012bd3c8bSSascha Wildner .ucom_poll = &uchcom_poll,
27112bd3c8bSSascha Wildner };
27212bd3c8bSSascha Wildner
27312bd3c8bSSascha Wildner /* ----------------------------------------------------------------------
27412bd3c8bSSascha Wildner * driver entry points
27512bd3c8bSSascha Wildner */
27612bd3c8bSSascha Wildner
27712bd3c8bSSascha Wildner static int
uchcom_probe(device_t dev)27812bd3c8bSSascha Wildner uchcom_probe(device_t dev)
27912bd3c8bSSascha Wildner {
28012bd3c8bSSascha Wildner struct usb_attach_arg *uaa = device_get_ivars(dev);
28112bd3c8bSSascha Wildner
28212bd3c8bSSascha Wildner DPRINTFN(11, "\n");
28312bd3c8bSSascha Wildner
28412bd3c8bSSascha Wildner if (uaa->usb_mode != USB_MODE_HOST) {
28512bd3c8bSSascha Wildner return (ENXIO);
28612bd3c8bSSascha Wildner }
28712bd3c8bSSascha Wildner if (uaa->info.bConfigIndex != UCHCOM_CONFIG_INDEX) {
28812bd3c8bSSascha Wildner return (ENXIO);
28912bd3c8bSSascha Wildner }
29012bd3c8bSSascha Wildner if (uaa->info.bIfaceIndex != UCHCOM_IFACE_INDEX) {
29112bd3c8bSSascha Wildner return (ENXIO);
29212bd3c8bSSascha Wildner }
29312bd3c8bSSascha Wildner return (usbd_lookup_id_by_uaa(uchcom_devs, sizeof(uchcom_devs), uaa));
29412bd3c8bSSascha Wildner }
29512bd3c8bSSascha Wildner
29612bd3c8bSSascha Wildner static int
uchcom_attach(device_t dev)29712bd3c8bSSascha Wildner uchcom_attach(device_t dev)
29812bd3c8bSSascha Wildner {
29912bd3c8bSSascha Wildner struct uchcom_softc *sc = device_get_softc(dev);
30012bd3c8bSSascha Wildner struct usb_attach_arg *uaa = device_get_ivars(dev);
30112bd3c8bSSascha Wildner int error;
30212bd3c8bSSascha Wildner uint8_t iface_index;
30312bd3c8bSSascha Wildner
30412bd3c8bSSascha Wildner DPRINTFN(11, "\n");
30512bd3c8bSSascha Wildner
30612bd3c8bSSascha Wildner device_set_usb_desc(dev);
307a81829f2SSascha Wildner lockinit(&sc->sc_lock, "uchcom", 0, LK_CANRECURSE);
30812bd3c8bSSascha Wildner
30912bd3c8bSSascha Wildner sc->sc_udev = uaa->device;
31012bd3c8bSSascha Wildner
31112bd3c8bSSascha Wildner switch (uaa->info.bcdDevice) {
31212bd3c8bSSascha Wildner case UCHCOM_REV_CH340:
31312bd3c8bSSascha Wildner device_printf(dev, "CH340 detected\n");
31412bd3c8bSSascha Wildner break;
31512bd3c8bSSascha Wildner default:
31612bd3c8bSSascha Wildner device_printf(dev, "CH341 detected\n");
31712bd3c8bSSascha Wildner break;
31812bd3c8bSSascha Wildner }
31912bd3c8bSSascha Wildner
32012bd3c8bSSascha Wildner iface_index = UCHCOM_IFACE_INDEX;
32112bd3c8bSSascha Wildner error = usbd_transfer_setup(uaa->device,
32212bd3c8bSSascha Wildner &iface_index, sc->sc_xfer, uchcom_config_data,
323a81829f2SSascha Wildner UCHCOM_N_TRANSFER, sc, &sc->sc_lock);
32412bd3c8bSSascha Wildner
32512bd3c8bSSascha Wildner if (error) {
32612bd3c8bSSascha Wildner DPRINTF("one or more missing USB endpoints, "
32712bd3c8bSSascha Wildner "error=%s\n", usbd_errstr(error));
32812bd3c8bSSascha Wildner goto detach;
32912bd3c8bSSascha Wildner }
33012bd3c8bSSascha Wildner
33112bd3c8bSSascha Wildner /* clear stall at first run */
332a81829f2SSascha Wildner lockmgr(&sc->sc_lock, LK_EXCLUSIVE);
33312bd3c8bSSascha Wildner usbd_xfer_set_stall(sc->sc_xfer[UCHCOM_BULK_DT_WR]);
33412bd3c8bSSascha Wildner usbd_xfer_set_stall(sc->sc_xfer[UCHCOM_BULK_DT_RD]);
335a81829f2SSascha Wildner lockmgr(&sc->sc_lock, LK_RELEASE);
33612bd3c8bSSascha Wildner
33712bd3c8bSSascha Wildner error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
338a81829f2SSascha Wildner &uchcom_callback, &sc->sc_lock);
33912bd3c8bSSascha Wildner if (error) {
34012bd3c8bSSascha Wildner goto detach;
34112bd3c8bSSascha Wildner }
34212bd3c8bSSascha Wildner ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
34312bd3c8bSSascha Wildner
34412bd3c8bSSascha Wildner return (0);
34512bd3c8bSSascha Wildner
34612bd3c8bSSascha Wildner detach:
34712bd3c8bSSascha Wildner uchcom_detach(dev);
34812bd3c8bSSascha Wildner return (ENXIO);
34912bd3c8bSSascha Wildner }
35012bd3c8bSSascha Wildner
35112bd3c8bSSascha Wildner static int
uchcom_detach(device_t dev)35212bd3c8bSSascha Wildner uchcom_detach(device_t dev)
35312bd3c8bSSascha Wildner {
35412bd3c8bSSascha Wildner struct uchcom_softc *sc = device_get_softc(dev);
35512bd3c8bSSascha Wildner
35612bd3c8bSSascha Wildner DPRINTFN(11, "\n");
35712bd3c8bSSascha Wildner
35812bd3c8bSSascha Wildner ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
35912bd3c8bSSascha Wildner usbd_transfer_unsetup(sc->sc_xfer, UCHCOM_N_TRANSFER);
360a81829f2SSascha Wildner lockuninit(&sc->sc_lock);
36112bd3c8bSSascha Wildner
36212bd3c8bSSascha Wildner return (0);
36312bd3c8bSSascha Wildner }
36412bd3c8bSSascha Wildner
36512bd3c8bSSascha Wildner /* ----------------------------------------------------------------------
36612bd3c8bSSascha Wildner * low level i/o
36712bd3c8bSSascha Wildner */
36812bd3c8bSSascha Wildner
36912bd3c8bSSascha Wildner static void
uchcom_ctrl_write(struct uchcom_softc * sc,uint8_t reqno,uint16_t value,uint16_t index)37012bd3c8bSSascha Wildner uchcom_ctrl_write(struct uchcom_softc *sc, uint8_t reqno,
37112bd3c8bSSascha Wildner uint16_t value, uint16_t index)
37212bd3c8bSSascha Wildner {
37312bd3c8bSSascha Wildner struct usb_device_request req;
37412bd3c8bSSascha Wildner
37512bd3c8bSSascha Wildner req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
37612bd3c8bSSascha Wildner req.bRequest = reqno;
37712bd3c8bSSascha Wildner USETW(req.wValue, value);
37812bd3c8bSSascha Wildner USETW(req.wIndex, index);
37912bd3c8bSSascha Wildner USETW(req.wLength, 0);
38012bd3c8bSSascha Wildner
38112bd3c8bSSascha Wildner ucom_cfg_do_request(sc->sc_udev,
38212bd3c8bSSascha Wildner &sc->sc_ucom, &req, NULL, 0, 1000);
38312bd3c8bSSascha Wildner }
38412bd3c8bSSascha Wildner
38512bd3c8bSSascha Wildner static void
uchcom_ctrl_read(struct uchcom_softc * sc,uint8_t reqno,uint16_t value,uint16_t index,void * buf,uint16_t buflen)38612bd3c8bSSascha Wildner uchcom_ctrl_read(struct uchcom_softc *sc, uint8_t reqno,
38712bd3c8bSSascha Wildner uint16_t value, uint16_t index, void *buf, uint16_t buflen)
38812bd3c8bSSascha Wildner {
38912bd3c8bSSascha Wildner struct usb_device_request req;
39012bd3c8bSSascha Wildner
39112bd3c8bSSascha Wildner req.bmRequestType = UT_READ_VENDOR_DEVICE;
39212bd3c8bSSascha Wildner req.bRequest = reqno;
39312bd3c8bSSascha Wildner USETW(req.wValue, value);
39412bd3c8bSSascha Wildner USETW(req.wIndex, index);
39512bd3c8bSSascha Wildner USETW(req.wLength, buflen);
39612bd3c8bSSascha Wildner
39712bd3c8bSSascha Wildner ucom_cfg_do_request(sc->sc_udev,
39812bd3c8bSSascha Wildner &sc->sc_ucom, &req, buf, USB_SHORT_XFER_OK, 1000);
39912bd3c8bSSascha Wildner }
40012bd3c8bSSascha Wildner
40112bd3c8bSSascha Wildner static void
uchcom_write_reg(struct uchcom_softc * sc,uint8_t reg1,uint8_t val1,uint8_t reg2,uint8_t val2)40212bd3c8bSSascha Wildner uchcom_write_reg(struct uchcom_softc *sc,
40312bd3c8bSSascha Wildner uint8_t reg1, uint8_t val1, uint8_t reg2, uint8_t val2)
40412bd3c8bSSascha Wildner {
40512bd3c8bSSascha Wildner DPRINTF("0x%02X<-0x%02X, 0x%02X<-0x%02X\n",
40612bd3c8bSSascha Wildner (unsigned)reg1, (unsigned)val1,
40712bd3c8bSSascha Wildner (unsigned)reg2, (unsigned)val2);
40812bd3c8bSSascha Wildner uchcom_ctrl_write(
40912bd3c8bSSascha Wildner sc, UCHCOM_REQ_WRITE_REG,
41012bd3c8bSSascha Wildner reg1 | ((uint16_t)reg2 << 8), val1 | ((uint16_t)val2 << 8));
41112bd3c8bSSascha Wildner }
41212bd3c8bSSascha Wildner
41312bd3c8bSSascha Wildner static void
uchcom_read_reg(struct uchcom_softc * sc,uint8_t reg1,uint8_t * rval1,uint8_t reg2,uint8_t * rval2)41412bd3c8bSSascha Wildner uchcom_read_reg(struct uchcom_softc *sc,
41512bd3c8bSSascha Wildner uint8_t reg1, uint8_t *rval1, uint8_t reg2, uint8_t *rval2)
41612bd3c8bSSascha Wildner {
41712bd3c8bSSascha Wildner uint8_t buf[UCHCOM_INPUT_BUF_SIZE];
41812bd3c8bSSascha Wildner
41912bd3c8bSSascha Wildner uchcom_ctrl_read(
42012bd3c8bSSascha Wildner sc, UCHCOM_REQ_READ_REG,
42112bd3c8bSSascha Wildner reg1 | ((uint16_t)reg2 << 8), 0, buf, sizeof(buf));
42212bd3c8bSSascha Wildner
42312bd3c8bSSascha Wildner DPRINTF("0x%02X->0x%02X, 0x%02X->0x%02X\n",
42412bd3c8bSSascha Wildner (unsigned)reg1, (unsigned)buf[0],
42512bd3c8bSSascha Wildner (unsigned)reg2, (unsigned)buf[1]);
42612bd3c8bSSascha Wildner
42712bd3c8bSSascha Wildner if (rval1)
42812bd3c8bSSascha Wildner *rval1 = buf[0];
42912bd3c8bSSascha Wildner if (rval2)
43012bd3c8bSSascha Wildner *rval2 = buf[1];
43112bd3c8bSSascha Wildner }
43212bd3c8bSSascha Wildner
43312bd3c8bSSascha Wildner static void
uchcom_get_version(struct uchcom_softc * sc,uint8_t * rver)43412bd3c8bSSascha Wildner uchcom_get_version(struct uchcom_softc *sc, uint8_t *rver)
43512bd3c8bSSascha Wildner {
43612bd3c8bSSascha Wildner uint8_t buf[UCHCOM_INPUT_BUF_SIZE];
43712bd3c8bSSascha Wildner
43812bd3c8bSSascha Wildner uchcom_ctrl_read(sc, UCHCOM_REQ_GET_VERSION, 0, 0, buf, sizeof(buf));
43912bd3c8bSSascha Wildner
44012bd3c8bSSascha Wildner if (rver)
44112bd3c8bSSascha Wildner *rver = buf[0];
44212bd3c8bSSascha Wildner }
44312bd3c8bSSascha Wildner
44412bd3c8bSSascha Wildner static void
uchcom_get_status(struct uchcom_softc * sc,uint8_t * rval)44512bd3c8bSSascha Wildner uchcom_get_status(struct uchcom_softc *sc, uint8_t *rval)
44612bd3c8bSSascha Wildner {
44712bd3c8bSSascha Wildner uchcom_read_reg(sc, UCHCOM_REG_STAT1, rval, UCHCOM_REG_STAT2, NULL);
44812bd3c8bSSascha Wildner }
44912bd3c8bSSascha Wildner
45012bd3c8bSSascha Wildner static void
uchcom_set_dtr_rts_10(struct uchcom_softc * sc,uint8_t val)45112bd3c8bSSascha Wildner uchcom_set_dtr_rts_10(struct uchcom_softc *sc, uint8_t val)
45212bd3c8bSSascha Wildner {
45312bd3c8bSSascha Wildner uchcom_write_reg(sc, UCHCOM_REG_STAT1, val, UCHCOM_REG_STAT1, val);
45412bd3c8bSSascha Wildner }
45512bd3c8bSSascha Wildner
45612bd3c8bSSascha Wildner static void
uchcom_set_dtr_rts_20(struct uchcom_softc * sc,uint8_t val)45712bd3c8bSSascha Wildner uchcom_set_dtr_rts_20(struct uchcom_softc *sc, uint8_t val)
45812bd3c8bSSascha Wildner {
45912bd3c8bSSascha Wildner uchcom_ctrl_write(sc, UCHCOM_REQ_SET_DTRRTS, val, 0);
46012bd3c8bSSascha Wildner }
46112bd3c8bSSascha Wildner
46212bd3c8bSSascha Wildner
46312bd3c8bSSascha Wildner /* ----------------------------------------------------------------------
46412bd3c8bSSascha Wildner * middle layer
46512bd3c8bSSascha Wildner */
46612bd3c8bSSascha Wildner
46712bd3c8bSSascha Wildner static void
uchcom_update_version(struct uchcom_softc * sc)46812bd3c8bSSascha Wildner uchcom_update_version(struct uchcom_softc *sc)
46912bd3c8bSSascha Wildner {
47012bd3c8bSSascha Wildner uchcom_get_version(sc, &sc->sc_version);
47112bd3c8bSSascha Wildner }
47212bd3c8bSSascha Wildner
47312bd3c8bSSascha Wildner static void
uchcom_convert_status(struct uchcom_softc * sc,uint8_t cur)47412bd3c8bSSascha Wildner uchcom_convert_status(struct uchcom_softc *sc, uint8_t cur)
47512bd3c8bSSascha Wildner {
47612bd3c8bSSascha Wildner sc->sc_dtr = !(cur & UCHCOM_DTR_MASK);
47712bd3c8bSSascha Wildner sc->sc_rts = !(cur & UCHCOM_RTS_MASK);
47812bd3c8bSSascha Wildner
47912bd3c8bSSascha Wildner cur = ~cur & 0x0F;
48012bd3c8bSSascha Wildner sc->sc_msr = (cur << 4) | ((sc->sc_msr >> 4) ^ cur);
48112bd3c8bSSascha Wildner }
48212bd3c8bSSascha Wildner
48312bd3c8bSSascha Wildner static void
uchcom_update_status(struct uchcom_softc * sc)48412bd3c8bSSascha Wildner uchcom_update_status(struct uchcom_softc *sc)
48512bd3c8bSSascha Wildner {
48612bd3c8bSSascha Wildner uint8_t cur;
48712bd3c8bSSascha Wildner
48812bd3c8bSSascha Wildner uchcom_get_status(sc, &cur);
48912bd3c8bSSascha Wildner uchcom_convert_status(sc, cur);
49012bd3c8bSSascha Wildner }
49112bd3c8bSSascha Wildner
49212bd3c8bSSascha Wildner
49312bd3c8bSSascha Wildner static void
uchcom_set_dtr_rts(struct uchcom_softc * sc)49412bd3c8bSSascha Wildner uchcom_set_dtr_rts(struct uchcom_softc *sc)
49512bd3c8bSSascha Wildner {
49612bd3c8bSSascha Wildner uint8_t val = 0;
49712bd3c8bSSascha Wildner
49812bd3c8bSSascha Wildner if (sc->sc_dtr)
49912bd3c8bSSascha Wildner val |= UCHCOM_DTR_MASK;
50012bd3c8bSSascha Wildner if (sc->sc_rts)
50112bd3c8bSSascha Wildner val |= UCHCOM_RTS_MASK;
50212bd3c8bSSascha Wildner
50312bd3c8bSSascha Wildner if (sc->sc_version < UCHCOM_VER_20)
50412bd3c8bSSascha Wildner uchcom_set_dtr_rts_10(sc, ~val);
50512bd3c8bSSascha Wildner else
50612bd3c8bSSascha Wildner uchcom_set_dtr_rts_20(sc, ~val);
50712bd3c8bSSascha Wildner }
50812bd3c8bSSascha Wildner
50912bd3c8bSSascha Wildner static void
uchcom_cfg_set_break(struct ucom_softc * ucom,uint8_t onoff)51012bd3c8bSSascha Wildner uchcom_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff)
51112bd3c8bSSascha Wildner {
51212bd3c8bSSascha Wildner struct uchcom_softc *sc = ucom->sc_parent;
51312bd3c8bSSascha Wildner uint8_t brk1;
51412bd3c8bSSascha Wildner uint8_t brk2;
51512bd3c8bSSascha Wildner
51612bd3c8bSSascha Wildner uchcom_read_reg(sc, UCHCOM_REG_BREAK1, &brk1, UCHCOM_REG_BREAK2, &brk2);
51712bd3c8bSSascha Wildner if (onoff) {
51812bd3c8bSSascha Wildner /* on - clear bits */
51912bd3c8bSSascha Wildner brk1 &= ~UCHCOM_BRK1_MASK;
52012bd3c8bSSascha Wildner brk2 &= ~UCHCOM_BRK2_MASK;
52112bd3c8bSSascha Wildner } else {
52212bd3c8bSSascha Wildner /* off - set bits */
52312bd3c8bSSascha Wildner brk1 |= UCHCOM_BRK1_MASK;
52412bd3c8bSSascha Wildner brk2 |= UCHCOM_BRK2_MASK;
52512bd3c8bSSascha Wildner }
52612bd3c8bSSascha Wildner uchcom_write_reg(sc, UCHCOM_REG_BREAK1, brk1, UCHCOM_REG_BREAK2, brk2);
52712bd3c8bSSascha Wildner }
52812bd3c8bSSascha Wildner
52912bd3c8bSSascha Wildner static int
uchcom_calc_divider_settings(struct uchcom_divider * dp,uint32_t rate)53012bd3c8bSSascha Wildner uchcom_calc_divider_settings(struct uchcom_divider *dp, uint32_t rate)
53112bd3c8bSSascha Wildner {
53212bd3c8bSSascha Wildner const struct uchcom_divider_record *rp;
53312bd3c8bSSascha Wildner uint32_t div;
53412bd3c8bSSascha Wildner uint32_t rem;
53512bd3c8bSSascha Wildner uint32_t mod;
53612bd3c8bSSascha Wildner uint8_t i;
53712bd3c8bSSascha Wildner
53812bd3c8bSSascha Wildner /* find record */
539b22bdff4SSascha Wildner for (i = 0; i != NELEM(dividers); i++) {
54012bd3c8bSSascha Wildner if (dividers[i].dvr_high >= rate &&
54112bd3c8bSSascha Wildner dividers[i].dvr_low <= rate) {
54212bd3c8bSSascha Wildner rp = ÷rs[i];
54312bd3c8bSSascha Wildner goto found;
54412bd3c8bSSascha Wildner }
54512bd3c8bSSascha Wildner }
54612bd3c8bSSascha Wildner return (-1);
54712bd3c8bSSascha Wildner
54812bd3c8bSSascha Wildner found:
54912bd3c8bSSascha Wildner dp->dv_prescaler = rp->dvr_divider.dv_prescaler;
55012bd3c8bSSascha Wildner if (rp->dvr_base_clock == UCHCOM_BASE_UNKNOWN)
55112bd3c8bSSascha Wildner dp->dv_div = rp->dvr_divider.dv_div;
55212bd3c8bSSascha Wildner else {
55312bd3c8bSSascha Wildner div = rp->dvr_base_clock / rate;
55412bd3c8bSSascha Wildner rem = rp->dvr_base_clock % rate;
55512bd3c8bSSascha Wildner if (div == 0 || div >= 0xFF)
55612bd3c8bSSascha Wildner return (-1);
55712bd3c8bSSascha Wildner if ((rem << 1) >= rate)
55812bd3c8bSSascha Wildner div += 1;
55912bd3c8bSSascha Wildner dp->dv_div = (uint8_t)-div;
56012bd3c8bSSascha Wildner }
56112bd3c8bSSascha Wildner
56212bd3c8bSSascha Wildner mod = (UCHCOM_BPS_MOD_BASE / rate) + UCHCOM_BPS_MOD_BASE_OFS;
56312bd3c8bSSascha Wildner mod = mod + (mod / 2);
56412bd3c8bSSascha Wildner
56512bd3c8bSSascha Wildner dp->dv_mod = (mod + 0xFF) / 0x100;
56612bd3c8bSSascha Wildner
56712bd3c8bSSascha Wildner return (0);
56812bd3c8bSSascha Wildner }
56912bd3c8bSSascha Wildner
57012bd3c8bSSascha Wildner static void
uchcom_set_baudrate(struct uchcom_softc * sc,uint32_t rate)57112bd3c8bSSascha Wildner uchcom_set_baudrate(struct uchcom_softc *sc, uint32_t rate)
57212bd3c8bSSascha Wildner {
57312bd3c8bSSascha Wildner struct uchcom_divider dv;
57412bd3c8bSSascha Wildner
57512bd3c8bSSascha Wildner if (uchcom_calc_divider_settings(&dv, rate))
57612bd3c8bSSascha Wildner return;
57712bd3c8bSSascha Wildner
57812bd3c8bSSascha Wildner uchcom_write_reg(sc,
57912bd3c8bSSascha Wildner UCHCOM_REG_BPS_PRE, dv.dv_prescaler,
58012bd3c8bSSascha Wildner UCHCOM_REG_BPS_DIV, dv.dv_div);
58112bd3c8bSSascha Wildner uchcom_write_reg(sc,
58212bd3c8bSSascha Wildner UCHCOM_REG_BPS_MOD, dv.dv_mod,
58312bd3c8bSSascha Wildner UCHCOM_REG_BPS_PAD, 0);
58412bd3c8bSSascha Wildner }
58512bd3c8bSSascha Wildner
58612bd3c8bSSascha Wildner /* ----------------------------------------------------------------------
58712bd3c8bSSascha Wildner * methods for ucom
58812bd3c8bSSascha Wildner */
58912bd3c8bSSascha Wildner static void
uchcom_cfg_get_status(struct ucom_softc * ucom,uint8_t * lsr,uint8_t * msr)59012bd3c8bSSascha Wildner uchcom_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
59112bd3c8bSSascha Wildner {
59212bd3c8bSSascha Wildner struct uchcom_softc *sc = ucom->sc_parent;
59312bd3c8bSSascha Wildner
59412bd3c8bSSascha Wildner DPRINTF("\n");
59512bd3c8bSSascha Wildner
59612bd3c8bSSascha Wildner *lsr = sc->sc_lsr;
59712bd3c8bSSascha Wildner *msr = sc->sc_msr;
59812bd3c8bSSascha Wildner }
59912bd3c8bSSascha Wildner
60012bd3c8bSSascha Wildner static void
uchcom_cfg_set_dtr(struct ucom_softc * ucom,uint8_t onoff)60112bd3c8bSSascha Wildner uchcom_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
60212bd3c8bSSascha Wildner {
60312bd3c8bSSascha Wildner struct uchcom_softc *sc = ucom->sc_parent;
60412bd3c8bSSascha Wildner
60512bd3c8bSSascha Wildner DPRINTF("onoff = %d\n", onoff);
60612bd3c8bSSascha Wildner
60712bd3c8bSSascha Wildner sc->sc_dtr = onoff;
60812bd3c8bSSascha Wildner uchcom_set_dtr_rts(sc);
60912bd3c8bSSascha Wildner }
61012bd3c8bSSascha Wildner
61112bd3c8bSSascha Wildner static void
uchcom_cfg_set_rts(struct ucom_softc * ucom,uint8_t onoff)61212bd3c8bSSascha Wildner uchcom_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff)
61312bd3c8bSSascha Wildner {
61412bd3c8bSSascha Wildner struct uchcom_softc *sc = ucom->sc_parent;
61512bd3c8bSSascha Wildner
61612bd3c8bSSascha Wildner DPRINTF("onoff = %d\n", onoff);
61712bd3c8bSSascha Wildner
61812bd3c8bSSascha Wildner sc->sc_rts = onoff;
61912bd3c8bSSascha Wildner uchcom_set_dtr_rts(sc);
62012bd3c8bSSascha Wildner }
62112bd3c8bSSascha Wildner
62212bd3c8bSSascha Wildner static void
uchcom_cfg_open(struct ucom_softc * ucom)62312bd3c8bSSascha Wildner uchcom_cfg_open(struct ucom_softc *ucom)
62412bd3c8bSSascha Wildner {
62512bd3c8bSSascha Wildner struct uchcom_softc *sc = ucom->sc_parent;
62612bd3c8bSSascha Wildner
62712bd3c8bSSascha Wildner DPRINTF("\n");
62812bd3c8bSSascha Wildner
62912bd3c8bSSascha Wildner uchcom_update_version(sc);
63012bd3c8bSSascha Wildner uchcom_update_status(sc);
63112bd3c8bSSascha Wildner }
63212bd3c8bSSascha Wildner
63312bd3c8bSSascha Wildner static int
uchcom_pre_param(struct ucom_softc * ucom,struct termios * t)63412bd3c8bSSascha Wildner uchcom_pre_param(struct ucom_softc *ucom, struct termios *t)
63512bd3c8bSSascha Wildner {
63612bd3c8bSSascha Wildner struct uchcom_divider dv;
63712bd3c8bSSascha Wildner
63812bd3c8bSSascha Wildner switch (t->c_cflag & CSIZE) {
63912bd3c8bSSascha Wildner case CS8:
64012bd3c8bSSascha Wildner break;
64112bd3c8bSSascha Wildner default:
64212bd3c8bSSascha Wildner return (EIO);
64312bd3c8bSSascha Wildner }
64412bd3c8bSSascha Wildner
64512bd3c8bSSascha Wildner if (uchcom_calc_divider_settings(&dv, t->c_ospeed)) {
64612bd3c8bSSascha Wildner return (EIO);
64712bd3c8bSSascha Wildner }
64812bd3c8bSSascha Wildner return (0); /* success */
64912bd3c8bSSascha Wildner }
65012bd3c8bSSascha Wildner
65112bd3c8bSSascha Wildner static void
uchcom_cfg_param(struct ucom_softc * ucom,struct termios * t)65212bd3c8bSSascha Wildner uchcom_cfg_param(struct ucom_softc *ucom, struct termios *t)
65312bd3c8bSSascha Wildner {
65412bd3c8bSSascha Wildner struct uchcom_softc *sc = ucom->sc_parent;
65512bd3c8bSSascha Wildner
65612bd3c8bSSascha Wildner uchcom_get_version(sc, 0);
65712bd3c8bSSascha Wildner uchcom_ctrl_write(sc, UCHCOM_REQ_RESET, 0, 0);
65812bd3c8bSSascha Wildner uchcom_set_baudrate(sc, t->c_ospeed);
65912bd3c8bSSascha Wildner uchcom_read_reg(sc, 0x18, 0, 0x25, 0);
66012bd3c8bSSascha Wildner uchcom_write_reg(sc, 0x18, 0x50, 0x25, 0x00);
66112bd3c8bSSascha Wildner uchcom_update_status(sc);
66212bd3c8bSSascha Wildner uchcom_ctrl_write(sc, UCHCOM_REQ_RESET, 0x501f, 0xd90a);
66312bd3c8bSSascha Wildner uchcom_set_baudrate(sc, t->c_ospeed);
66412bd3c8bSSascha Wildner uchcom_set_dtr_rts(sc);
66512bd3c8bSSascha Wildner uchcom_update_status(sc);
66612bd3c8bSSascha Wildner }
66712bd3c8bSSascha Wildner
66812bd3c8bSSascha Wildner static void
uchcom_start_read(struct ucom_softc * ucom)66912bd3c8bSSascha Wildner uchcom_start_read(struct ucom_softc *ucom)
67012bd3c8bSSascha Wildner {
67112bd3c8bSSascha Wildner struct uchcom_softc *sc = ucom->sc_parent;
67212bd3c8bSSascha Wildner
67312bd3c8bSSascha Wildner /* start interrupt endpoint */
67412bd3c8bSSascha Wildner usbd_transfer_start(sc->sc_xfer[UCHCOM_INTR_DT_RD]);
67512bd3c8bSSascha Wildner
67612bd3c8bSSascha Wildner /* start read endpoint */
67712bd3c8bSSascha Wildner usbd_transfer_start(sc->sc_xfer[UCHCOM_BULK_DT_RD]);
67812bd3c8bSSascha Wildner }
67912bd3c8bSSascha Wildner
68012bd3c8bSSascha Wildner static void
uchcom_stop_read(struct ucom_softc * ucom)68112bd3c8bSSascha Wildner uchcom_stop_read(struct ucom_softc *ucom)
68212bd3c8bSSascha Wildner {
68312bd3c8bSSascha Wildner struct uchcom_softc *sc = ucom->sc_parent;
68412bd3c8bSSascha Wildner
68512bd3c8bSSascha Wildner /* stop interrupt endpoint */
68612bd3c8bSSascha Wildner usbd_transfer_stop(sc->sc_xfer[UCHCOM_INTR_DT_RD]);
68712bd3c8bSSascha Wildner
68812bd3c8bSSascha Wildner /* stop read endpoint */
68912bd3c8bSSascha Wildner usbd_transfer_stop(sc->sc_xfer[UCHCOM_BULK_DT_RD]);
69012bd3c8bSSascha Wildner }
69112bd3c8bSSascha Wildner
69212bd3c8bSSascha Wildner static void
uchcom_start_write(struct ucom_softc * ucom)69312bd3c8bSSascha Wildner uchcom_start_write(struct ucom_softc *ucom)
69412bd3c8bSSascha Wildner {
69512bd3c8bSSascha Wildner struct uchcom_softc *sc = ucom->sc_parent;
69612bd3c8bSSascha Wildner
69712bd3c8bSSascha Wildner usbd_transfer_start(sc->sc_xfer[UCHCOM_BULK_DT_WR]);
69812bd3c8bSSascha Wildner }
69912bd3c8bSSascha Wildner
70012bd3c8bSSascha Wildner static void
uchcom_stop_write(struct ucom_softc * ucom)70112bd3c8bSSascha Wildner uchcom_stop_write(struct ucom_softc *ucom)
70212bd3c8bSSascha Wildner {
70312bd3c8bSSascha Wildner struct uchcom_softc *sc = ucom->sc_parent;
70412bd3c8bSSascha Wildner
70512bd3c8bSSascha Wildner usbd_transfer_stop(sc->sc_xfer[UCHCOM_BULK_DT_WR]);
70612bd3c8bSSascha Wildner }
70712bd3c8bSSascha Wildner
70812bd3c8bSSascha Wildner /* ----------------------------------------------------------------------
70912bd3c8bSSascha Wildner * callback when the modem status is changed.
71012bd3c8bSSascha Wildner */
71112bd3c8bSSascha Wildner static void
uchcom_intr_callback(struct usb_xfer * xfer,usb_error_t error)71212bd3c8bSSascha Wildner uchcom_intr_callback(struct usb_xfer *xfer, usb_error_t error)
71312bd3c8bSSascha Wildner {
71412bd3c8bSSascha Wildner struct uchcom_softc *sc = usbd_xfer_softc(xfer);
71512bd3c8bSSascha Wildner struct usb_page_cache *pc;
71612bd3c8bSSascha Wildner uint8_t buf[UCHCOM_INTR_LEAST];
71712bd3c8bSSascha Wildner int actlen;
71812bd3c8bSSascha Wildner
71912bd3c8bSSascha Wildner usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
72012bd3c8bSSascha Wildner
72112bd3c8bSSascha Wildner switch (USB_GET_STATE(xfer)) {
72212bd3c8bSSascha Wildner case USB_ST_TRANSFERRED:
72312bd3c8bSSascha Wildner
72412bd3c8bSSascha Wildner DPRINTF("actlen = %u\n", actlen);
72512bd3c8bSSascha Wildner
72612bd3c8bSSascha Wildner if (actlen >= UCHCOM_INTR_LEAST) {
72712bd3c8bSSascha Wildner pc = usbd_xfer_get_frame(xfer, 0);
72812bd3c8bSSascha Wildner usbd_copy_out(pc, 0, buf, UCHCOM_INTR_LEAST);
72912bd3c8bSSascha Wildner
73012bd3c8bSSascha Wildner DPRINTF("data = 0x%02X 0x%02X 0x%02X 0x%02X\n",
73112bd3c8bSSascha Wildner (unsigned)buf[0], (unsigned)buf[1],
73212bd3c8bSSascha Wildner (unsigned)buf[2], (unsigned)buf[3]);
73312bd3c8bSSascha Wildner
73412bd3c8bSSascha Wildner uchcom_convert_status(sc, buf[UCHCOM_INTR_STAT1]);
73512bd3c8bSSascha Wildner ucom_status_change(&sc->sc_ucom);
73612bd3c8bSSascha Wildner }
73712bd3c8bSSascha Wildner case USB_ST_SETUP:
73812bd3c8bSSascha Wildner tr_setup:
73912bd3c8bSSascha Wildner usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
74012bd3c8bSSascha Wildner usbd_transfer_submit(xfer);
74112bd3c8bSSascha Wildner break;
74212bd3c8bSSascha Wildner
74312bd3c8bSSascha Wildner default: /* Error */
74412bd3c8bSSascha Wildner if (error != USB_ERR_CANCELLED) {
74512bd3c8bSSascha Wildner /* try to clear stall first */
74612bd3c8bSSascha Wildner usbd_xfer_set_stall(xfer);
74712bd3c8bSSascha Wildner goto tr_setup;
74812bd3c8bSSascha Wildner }
74912bd3c8bSSascha Wildner break;
75012bd3c8bSSascha Wildner }
75112bd3c8bSSascha Wildner }
75212bd3c8bSSascha Wildner
75312bd3c8bSSascha Wildner static void
uchcom_write_callback(struct usb_xfer * xfer,usb_error_t error)75412bd3c8bSSascha Wildner uchcom_write_callback(struct usb_xfer *xfer, usb_error_t error)
75512bd3c8bSSascha Wildner {
75612bd3c8bSSascha Wildner struct uchcom_softc *sc = usbd_xfer_softc(xfer);
75712bd3c8bSSascha Wildner struct usb_page_cache *pc;
75812bd3c8bSSascha Wildner uint32_t actlen;
75912bd3c8bSSascha Wildner
76012bd3c8bSSascha Wildner switch (USB_GET_STATE(xfer)) {
76112bd3c8bSSascha Wildner case USB_ST_SETUP:
76212bd3c8bSSascha Wildner case USB_ST_TRANSFERRED:
76312bd3c8bSSascha Wildner tr_setup:
76412bd3c8bSSascha Wildner pc = usbd_xfer_get_frame(xfer, 0);
76512bd3c8bSSascha Wildner if (ucom_get_data(&sc->sc_ucom, pc, 0,
76612bd3c8bSSascha Wildner usbd_xfer_max_len(xfer), &actlen)) {
76712bd3c8bSSascha Wildner
76812bd3c8bSSascha Wildner DPRINTF("actlen = %d\n", actlen);
76912bd3c8bSSascha Wildner
77012bd3c8bSSascha Wildner usbd_xfer_set_frame_len(xfer, 0, actlen);
77112bd3c8bSSascha Wildner usbd_transfer_submit(xfer);
77212bd3c8bSSascha Wildner }
77312bd3c8bSSascha Wildner break;
77412bd3c8bSSascha Wildner
77512bd3c8bSSascha Wildner default: /* Error */
77612bd3c8bSSascha Wildner if (error != USB_ERR_CANCELLED) {
77712bd3c8bSSascha Wildner /* try to clear stall first */
77812bd3c8bSSascha Wildner usbd_xfer_set_stall(xfer);
77912bd3c8bSSascha Wildner goto tr_setup;
78012bd3c8bSSascha Wildner }
78112bd3c8bSSascha Wildner break;
78212bd3c8bSSascha Wildner }
78312bd3c8bSSascha Wildner }
78412bd3c8bSSascha Wildner
78512bd3c8bSSascha Wildner static void
uchcom_read_callback(struct usb_xfer * xfer,usb_error_t error)78612bd3c8bSSascha Wildner uchcom_read_callback(struct usb_xfer *xfer, usb_error_t error)
78712bd3c8bSSascha Wildner {
78812bd3c8bSSascha Wildner struct uchcom_softc *sc = usbd_xfer_softc(xfer);
78912bd3c8bSSascha Wildner struct usb_page_cache *pc;
79012bd3c8bSSascha Wildner int actlen;
79112bd3c8bSSascha Wildner
79212bd3c8bSSascha Wildner usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
79312bd3c8bSSascha Wildner
79412bd3c8bSSascha Wildner switch (USB_GET_STATE(xfer)) {
79512bd3c8bSSascha Wildner case USB_ST_TRANSFERRED:
79612bd3c8bSSascha Wildner
79712bd3c8bSSascha Wildner if (actlen > 0) {
79812bd3c8bSSascha Wildner pc = usbd_xfer_get_frame(xfer, 0);
79912bd3c8bSSascha Wildner ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
80012bd3c8bSSascha Wildner }
80112bd3c8bSSascha Wildner
80212bd3c8bSSascha Wildner case USB_ST_SETUP:
80312bd3c8bSSascha Wildner tr_setup:
80412bd3c8bSSascha Wildner usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
80512bd3c8bSSascha Wildner usbd_transfer_submit(xfer);
80612bd3c8bSSascha Wildner break;
80712bd3c8bSSascha Wildner
80812bd3c8bSSascha Wildner default: /* Error */
80912bd3c8bSSascha Wildner if (error != USB_ERR_CANCELLED) {
81012bd3c8bSSascha Wildner /* try to clear stall first */
81112bd3c8bSSascha Wildner usbd_xfer_set_stall(xfer);
81212bd3c8bSSascha Wildner goto tr_setup;
81312bd3c8bSSascha Wildner }
81412bd3c8bSSascha Wildner break;
81512bd3c8bSSascha Wildner }
81612bd3c8bSSascha Wildner }
81712bd3c8bSSascha Wildner
81812bd3c8bSSascha Wildner static void
uchcom_poll(struct ucom_softc * ucom)81912bd3c8bSSascha Wildner uchcom_poll(struct ucom_softc *ucom)
82012bd3c8bSSascha Wildner {
82112bd3c8bSSascha Wildner struct uchcom_softc *sc = ucom->sc_parent;
82212bd3c8bSSascha Wildner usbd_transfer_poll(sc->sc_xfer, UCHCOM_N_TRANSFER);
82312bd3c8bSSascha Wildner }
82412bd3c8bSSascha Wildner
82512bd3c8bSSascha Wildner static device_method_t uchcom_methods[] = {
82612bd3c8bSSascha Wildner /* Device interface */
82712bd3c8bSSascha Wildner DEVMETHOD(device_probe, uchcom_probe),
82812bd3c8bSSascha Wildner DEVMETHOD(device_attach, uchcom_attach),
82912bd3c8bSSascha Wildner DEVMETHOD(device_detach, uchcom_detach),
83012bd3c8bSSascha Wildner
831d3c9c58eSSascha Wildner DEVMETHOD_END
83212bd3c8bSSascha Wildner };
83312bd3c8bSSascha Wildner
83412bd3c8bSSascha Wildner static driver_t uchcom_driver = {
83512bd3c8bSSascha Wildner "ucom",
83612bd3c8bSSascha Wildner uchcom_methods,
83712bd3c8bSSascha Wildner sizeof(struct uchcom_softc)
83812bd3c8bSSascha Wildner };
83912bd3c8bSSascha Wildner
84012bd3c8bSSascha Wildner static devclass_t uchcom_devclass;
84112bd3c8bSSascha Wildner
8423a25be87SSascha Wildner DRIVER_MODULE(uchcom, uhub, uchcom_driver, uchcom_devclass, NULL, NULL);
84312bd3c8bSSascha Wildner MODULE_DEPEND(uchcom, ucom, 1, 1, 1);
84412bd3c8bSSascha Wildner MODULE_DEPEND(uchcom, usb, 1, 1, 1);
84512bd3c8bSSascha Wildner MODULE_VERSION(uchcom, 1);
846