From patchwork Sat Jan 6 20:47:34 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Pisa X-Patchwork-Id: 10148017 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 56C96602CA for ; Sat, 6 Jan 2018 20:52:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4528528952 for ; Sat, 6 Jan 2018 20:52:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3A3042895A; Sat, 6 Jan 2018 20:52:13 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 49BAC28952 for ; Sat, 6 Jan 2018 20:52:12 +0000 (UTC) Received: from localhost ([::1]:49839 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eXvRr-000103-DP for patchwork-qemu-devel@patchwork.kernel.org; Sat, 06 Jan 2018 15:52:11 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:32962) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eXvQN-00089O-6b for qemu-devel@nongnu.org; Sat, 06 Jan 2018 15:50:42 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eXvQL-0001At-M7 for qemu-devel@nongnu.org; Sat, 06 Jan 2018 15:50:39 -0500 Received: from smtp8.web4u.cz ([81.91.87.88]:58650 helo=mx-8.mail.web4u.cz) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eXvQL-0001AQ-Bw for qemu-devel@nongnu.org; Sat, 06 Jan 2018 15:50:37 -0500 Received: from mx-8.mail.web4u.cz (localhost [127.0.0.1]) by mx-8.mail.web4u.cz (Postfix) with ESMTP id ADA162014B5; Sat, 6 Jan 2018 21:50:34 +0100 (CET) Received: from baree.pikron.com (unknown [89.102.4.32]) (Authenticated sender: ppisa@pikron.com) by mx-8.mail.web4u.cz (Postfix) with ESMTPA id 62EE02014BA; Sat, 6 Jan 2018 21:50:34 +0100 (CET) From: pisa@cmp.felk.cvut.cz To: qemu-devel@nongnu.org Date: Sat, 6 Jan 2018 21:47:34 +0100 Message-Id: <9d07dec0056ce48504c0f41da37a34a70a8acf6c.1515260163.git.pisa@cmp.felk.cvut.cz> X-Mailer: git-send-email 2.11.0 In-Reply-To: References: In-Reply-To: References: X-W4U-Auth: 33f5950bf576b2d1f5ac2300e175c8fe6058087f X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 81.91.87.88 Subject: [Qemu-devel] [PATCH 5/7] CAN bus PCM-3680I PCI (dual SJA1000 channel) emulation added. X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marek Vasut , Oliver Hartkopp , Stefan Hajnoczi , Deniz Eren , Oleksij Rempel , Konrad Frederic , Jan Kiszka , Pavel Pisa Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Deniz Eren Signed-off-by: Pavel Pisa Signed-off-by: Deniz Eren --- hw/can/Makefile.objs | 1 + hw/can/can_pcm3680_pci.c | 335 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 336 insertions(+) create mode 100644 hw/can/can_pcm3680_pci.c diff --git a/hw/can/Makefile.objs b/hw/can/Makefile.objs index c9d07b9b16..6a328f0c3a 100644 --- a/hw/can/Makefile.objs +++ b/hw/can/Makefile.objs @@ -9,4 +9,5 @@ common-obj-y += can_host_stub.o endif common-obj-$(CONFIG_CAN_SJA1000) += can_sja1000.o common-obj-$(CONFIG_CAN_PCI) += can_kvaser_pci.o +common-obj-$(CONFIG_CAN_PCI) += can_pcm3680_pci.o endif diff --git a/hw/can/can_pcm3680_pci.c b/hw/can/can_pcm3680_pci.c new file mode 100644 index 0000000000..692aab6ab8 --- /dev/null +++ b/hw/can/can_pcm3680_pci.c @@ -0,0 +1,335 @@ +/* + * PCM-3680i PCI CAN device (SJA1000 based) emulation + * + * Copyright (c) 2016 Deniz Eren (deniz.eren@icloud.com) + * + * Based on Kvaser PCI CAN device (SJA1000 based) emulation implemented by + * Jin Yang and Pavel Pisa + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "qemu/osdep.h" +#include "qemu/event_notifier.h" +#include "qemu/thread.h" +#include "qemu/sockets.h" +#include "qemu/error-report.h" +#include "chardev/char.h" +#include "hw/hw.h" +#include "hw/pci/pci.h" +#include "can/can_emu.h" + +#include "can_sja1000.h" + +#define TYPE_CAN_PCI_DEV "pcm3680_pci" + +#define PCM3680i_PCI_DEV(obj) \ + OBJECT_CHECK(Pcm3680iPCIState, (obj), TYPE_CAN_PCI_DEV) + +#ifndef PCM3680i_PCI_VENDOR_ID1 +#define PCM3680i_PCI_VENDOR_ID1 0x13fe /* the PCI device and vendor IDs */ +#endif + +#ifndef PCM3680i_PCI_DEVICE_ID1 +#define PCM3680i_PCI_DEVICE_ID1 0xc002 +#endif + +#define PCM3680i_PCI_SJA_RANGE 0x200 + +#define PCM3680i_PCI_BYTES_PER_SJA 0x20 + +typedef struct Pcm3680iPCIState { + /*< private >*/ + PCIDevice dev; + /*< public >*/ + MemoryRegion sja_io[2]; + + CanSJA1000State sja_state[2]; + qemu_irq irq; + + char *model; /* The model that support, only SJA1000 now. */ + char *canbus[2]; + char *host[2]; +} Pcm3680iPCIState; + +static void pcm3680i_pci_irq_raise(void *opaque) +{ + Pcm3680iPCIState *d = (Pcm3680iPCIState *)opaque; + + qemu_irq_raise(d->irq); +} + +static void pcm3680i_pci_irq_lower(void *opaque) +{ + Pcm3680iPCIState *d = (Pcm3680iPCIState *)opaque; + + qemu_irq_lower(d->irq); +} + +static void +pcm3680i_pci_reset(void *opaque) +{ + Pcm3680iPCIState *d = (Pcm3680iPCIState *)opaque; + CanSJA1000State *s1 = &d->sja_state[0]; + CanSJA1000State *s2 = &d->sja_state[1]; + + can_sja_hardware_reset(s1); + can_sja_hardware_reset(s2); +} + +static uint64_t pcm3680i_pci_sja1_io_read(void *opaque, hwaddr addr, + unsigned size) +{ + Pcm3680iPCIState *d = opaque; + CanSJA1000State *s = &d->sja_state[0]; + + if (addr >= PCM3680i_PCI_BYTES_PER_SJA) { + return 0; + } + + return can_sja_mem_read(s, addr, size); +} + +static void pcm3680i_pci_sja1_io_write(void *opaque, hwaddr addr, + uint64_t data, unsigned size) +{ + Pcm3680iPCIState *d = opaque; + CanSJA1000State *s = &d->sja_state[0]; + + if (addr >= PCM3680i_PCI_BYTES_PER_SJA) { + return; + } + + can_sja_mem_write(s, addr, data, size); +} + +static uint64_t pcm3680i_pci_sja2_io_read(void *opaque, hwaddr addr, + unsigned size) +{ + Pcm3680iPCIState *d = opaque; + CanSJA1000State *s = &d->sja_state[1]; + + if (addr >= PCM3680i_PCI_BYTES_PER_SJA) { + return 0; + } + + return can_sja_mem_read(s, addr, size); +} + +static void pcm3680i_pci_sja2_io_write(void *opaque, hwaddr addr, uint64_t data, + unsigned size) +{ + Pcm3680iPCIState *d = opaque; + CanSJA1000State *s = &d->sja_state[1]; + + if (addr >= PCM3680i_PCI_BYTES_PER_SJA) { + return; + } + + can_sja_mem_write(s, addr, data, size); +} + +static const MemoryRegionOps pcm3680i_pci_sja1_io_ops = { + .read = pcm3680i_pci_sja1_io_read, + .write = pcm3680i_pci_sja1_io_write, + .endianness = DEVICE_LITTLE_ENDIAN, + .impl = { + .min_access_size = 1, + .max_access_size = 1, + }, +}; + +static const MemoryRegionOps pcm3680i_pci_sja2_io_ops = { + .read = pcm3680i_pci_sja2_io_read, + .write = pcm3680i_pci_sja2_io_write, + .endianness = DEVICE_LITTLE_ENDIAN, + .impl = { + .min_access_size = 1, + .max_access_size = 1, + }, +}; + +static int pcm3680i_pci_init(PCIDevice *pci_dev) +{ + Pcm3680iPCIState *d = PCM3680i_PCI_DEV(pci_dev); + CanSJA1000State *s1 = &d->sja_state[0]; + CanSJA1000State *s2 = &d->sja_state[1]; + uint8_t *pci_conf; + CanBusState *can_bus1; + CanBusState *can_bus2; + + if (d->model) { + if (strncmp(d->model, "pcican-s", 256)) { /* for security reason */ + error_report("Can't create CAN device, " + "the model %s is not supported now.", d->model); + exit(1); + } + } + + can_bus1 = can_bus_find_by_name(d->canbus[0], true); + if (can_bus1 == NULL) { + error_report("Cannot create can find/allocate CAN bus #1"); + exit(1); + } + + can_bus2 = can_bus_find_by_name(d->canbus[1], true); + if (can_bus2 == NULL) { + error_report("Cannot create can find/allocate CAN bus #2"); + exit(1); + } + + if (d->host[0] != NULL) { + if (can_bus_connect_to_host_device(can_bus1, d->host[0]) < 0) { + error_report("Cannot connect CAN bus to host #1 device \"%s\"", + d->host[0]); + exit(1); + } + } + + if (d->host[1] != NULL) { + if (can_bus_connect_to_host_device(can_bus2, d->host[1]) < 0) { + error_report("Cannot connect CAN bus to host #2 device \"%s\"", + d->host[1]); + exit(1); + } + } + + pci_conf = pci_dev->config; + pci_conf[PCI_INTERRUPT_PIN] = 0x01; /* interrupt pin A */ + + d->irq = pci_allocate_irq(&d->dev); + + can_sja_init(s1, pcm3680i_pci_irq_raise, pcm3680i_pci_irq_lower, d); + can_sja_init(s2, pcm3680i_pci_irq_raise, pcm3680i_pci_irq_lower, d); + + qemu_register_reset(pcm3680i_pci_reset, d); + + if (can_sja_connect_to_bus(s1, can_bus1) < 0) { + error_report("can_sja_connect_to_bus failed"); + exit(1); + } + + if (can_sja_connect_to_bus(s2, can_bus2) < 0) { + error_report("can_sja_connect_to_bus failed"); + exit(1); + } + + memory_region_init_io(&d->sja_io[0], OBJECT(d), &pcm3680i_pci_sja1_io_ops, + d, "pcm3680i_pci-sja1", PCM3680i_PCI_SJA_RANGE / 2); + memory_region_init_io(&d->sja_io[1], OBJECT(d), &pcm3680i_pci_sja2_io_ops, + d, "pcm3680i_pci-sja2", PCM3680i_PCI_SJA_RANGE / 2); + + pci_register_bar(&d->dev, /*BAR*/ 0, PCI_BASE_ADDRESS_SPACE_IO, + &d->sja_io[0]); + pci_register_bar(&d->dev, /*BAR*/ 1, PCI_BASE_ADDRESS_SPACE_IO, + &d->sja_io[1]); + + return 0; +} + +static void pcm3680i_pci_exit(PCIDevice *pci_dev) +{ + Pcm3680iPCIState *d = PCM3680i_PCI_DEV(pci_dev); + CanSJA1000State *s1 = &d->sja_state[0]; + CanSJA1000State *s2 = &d->sja_state[1]; + + can_sja_disconnect(s1); + can_sja_disconnect(s2); + + qemu_unregister_reset(pcm3680i_pci_reset, d); + + /* + * region d->sja_io is destroyed by QOM now + */ + /* memory_region_destroy(&d->sja_io[0]); */ + /* memory_region_destroy(&d->sja_io[1]); */ + + can_sja_exit(s1); + can_sja_exit(s2); + + qemu_free_irq(d->irq); +} + +static const VMStateDescription vmstate_pcm3680i_pci = { + .name = "pcm3680i_pci", + .version_id = 1, + .minimum_version_id = 1, + .minimum_version_id_old = 1, + .fields = (VMStateField[]) { + VMSTATE_PCI_DEVICE(dev, Pcm3680iPCIState), + VMSTATE_STRUCT(sja_state[0], Pcm3680iPCIState, 0, + vmstate_can_sja, CanSJA1000State), + VMSTATE_STRUCT(sja_state[1], Pcm3680iPCIState, 0, + vmstate_can_sja, CanSJA1000State), + VMSTATE_END_OF_LIST() + } +}; + +static void qdev_pcm3680i_pci_reset(DeviceState *dev) +{ + Pcm3680iPCIState *d = PCM3680i_PCI_DEV(dev); + pcm3680i_pci_reset(d); +} + +static Property pcm3680i_pci_properties[] = { + DEFINE_PROP_STRING("canbus1", Pcm3680iPCIState, canbus[0]), + DEFINE_PROP_STRING("canbus2", Pcm3680iPCIState, canbus[1]), + DEFINE_PROP_STRING("host1", Pcm3680iPCIState, host[0]), + DEFINE_PROP_STRING("host2", Pcm3680iPCIState, host[1]), + DEFINE_PROP_STRING("model", Pcm3680iPCIState, model), + DEFINE_PROP_END_OF_LIST(), +}; + +static void pcm3680i_pci_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); + + k->init = pcm3680i_pci_init; + k->exit = pcm3680i_pci_exit; + k->vendor_id = PCM3680i_PCI_VENDOR_ID1; + k->device_id = PCM3680i_PCI_DEVICE_ID1; + k->revision = 0x00; + k->class_id = 0x000c09; + k->subsystem_vendor_id = PCM3680i_PCI_VENDOR_ID1; + k->subsystem_id = PCM3680i_PCI_DEVICE_ID1; + dc->desc = "Pcm3680i PCICANx"; + dc->props = pcm3680i_pci_properties; + dc->vmsd = &vmstate_pcm3680i_pci; + set_bit(DEVICE_CATEGORY_MISC, dc->categories); + dc->reset = qdev_pcm3680i_pci_reset; +} + +static const TypeInfo pcm3680i_pci_info = { + .name = TYPE_CAN_PCI_DEV, + .parent = TYPE_PCI_DEVICE, + .instance_size = sizeof(Pcm3680iPCIState), + .class_init = pcm3680i_pci_class_init, + .interfaces = (InterfaceInfo[]) { + { INTERFACE_CONVENTIONAL_PCI_DEVICE }, + { }, + }, +}; + +static void pcm3680i_pci_register_types(void) +{ + type_register_static(&pcm3680i_pci_info); +} + +type_init(pcm3680i_pci_register_types)