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GET /api/patches/815471/?format=api
{ "id": 815471, "url": "http://patchwork.ozlabs.org/api/patches/815471/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20170919112645.8574-5-clg@kaod.org/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20170919112645.8574-5-clg@kaod.org>", "list_archive_url": null, "date": "2017-09-19T11:26:44", "name": "[4/5] misc: add pca9552 LED blinker model", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "db25177ec2ece8e8adea1cfb57f7b7546ee071c5", "submitter": { "id": 68548, "url": "http://patchwork.ozlabs.org/api/people/68548/?format=api", "name": "Cédric Le Goater", "email": "clg@kaod.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20170919112645.8574-5-clg@kaod.org/mbox/", "series": [ { "id": 3851, "url": "http://patchwork.ozlabs.org/api/series/3851/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=3851", "date": "2017-09-19T11:26:40", "name": "aspeed: add a witherspoon-bmc machine", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/3851/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/815471/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/815471/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Authentication-Results": "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=<UNKNOWN>)", "Received": [ "from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xxLJh0byrz9s7B\n\tfor <incoming@patchwork.ozlabs.org>;\n\tTue, 19 Sep 2017 21:30:12 +1000 (AEST)", "from localhost ([::1]:41689 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1duGjC-0003y5-2H\n\tfor incoming@patchwork.ozlabs.org; Tue, 19 Sep 2017 07:30:10 -0400", "from eggs.gnu.org ([2001:4830:134:3::10]:49267)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from <clg@kaod.org>) id 1duGgX-0002Fg-Qx\n\tfor qemu-devel@nongnu.org; Tue, 19 Sep 2017 07:27:29 -0400", "from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from <clg@kaod.org>) id 1duGgW-0006RT-8J\n\tfor qemu-devel@nongnu.org; Tue, 19 Sep 2017 07:27:25 -0400", "from 7.mo179.mail-out.ovh.net ([46.105.61.94]:55783)\n\tby eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from <clg@kaod.org>) id 1duGgV-0006Qw-VF\n\tfor qemu-devel@nongnu.org; Tue, 19 Sep 2017 07:27:24 -0400", "from player716.ha.ovh.net (b6.ovh.net [213.186.33.56])\n\tby mo179.mail-out.ovh.net (Postfix) with ESMTP id F276D632A6\n\tfor <qemu-devel@nongnu.org>; Tue, 19 Sep 2017 13:27:22 +0200 (CEST)", "from zorba.kaod.org.com (deibp9eh1--blueice1n2.emea.ibm.com\n\t[195.212.29.164]) (Authenticated sender: clg@kaod.org)\n\tby player716.ha.ovh.net (Postfix) with ESMTPSA id 7B306560094;\n\tTue, 19 Sep 2017 13:27:16 +0200 (CEST)" ], "From": "=?utf-8?q?C=C3=A9dric_Le_Goater?= <clg@kaod.org>", "To": "Peter Maydell <peter.maydell@linaro.org>", "Date": "Tue, 19 Sep 2017 13:26:44 +0200", "Message-Id": "<20170919112645.8574-5-clg@kaod.org>", "X-Mailer": "git-send-email 2.13.5", "In-Reply-To": "<20170919112645.8574-1-clg@kaod.org>", "References": "<20170919112645.8574-1-clg@kaod.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "X-Ovh-Tracer-Id": "18382004831648123665", "X-VR-SPAMSTATE": "OK", "X-VR-SPAMSCORE": "-100", "X-VR-SPAMCAUSE": "gggruggvucftvghtrhhoucdtuddrfeelledrheejgdegudcutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd", "Content-Transfer-Encoding": "quoted-printable", "X-detected-operating-system": "by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]\n\t[fuzzy]", "X-Received-From": "46.105.61.94", "Subject": "[Qemu-devel] [PATCH 4/5] misc: add pca9552 LED blinker model", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.21", "Precedence": "list", "List-Id": "<qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<http://lists.nongnu.org/archive/html/qemu-devel/>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Cc": "Andrew Jeffery <andrew@aj.id.au>, =?utf-8?q?C=C3=A9dric_Le_Goater?=\n\t<clg@kaod.org>, qemu-arm@nongnu.org, qemu-devel@nongnu.org,\n\tJoel Stanley <joel@jms.id.au>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "\"Qemu-devel\"\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>" }, "content": "Specs are available here :\n\n https://www.nxp.com/docs/en/data-sheet/PCA9552.pdf\n\nThis is a simple model supporting the basic registers for led and GPIO\nmode. The device also supports two blinking rates but not the model\nyet.\n\nSigned-off-by: Cédric Le Goater <clg@kaod.org>\n---\n default-configs/arm-softmmu.mak | 1 +\n hw/misc/Makefile.objs | 1 +\n hw/misc/pca9552.c | 212 ++++++++++++++++++++++++++++++++++++++++\n include/hw/misc/pca9552.h | 32 ++++++\n 4 files changed, 246 insertions(+)\n create mode 100644 hw/misc/pca9552.c\n create mode 100644 include/hw/misc/pca9552.h", "diff": "diff --git a/default-configs/arm-softmmu.mak b/default-configs/arm-softmmu.mak\nindex bbdd3c1d8b7f..17b8fc323f27 100644\n--- a/default-configs/arm-softmmu.mak\n+++ b/default-configs/arm-softmmu.mak\n@@ -16,6 +16,7 @@ CONFIG_TSC2005=y\n CONFIG_LM832X=y\n CONFIG_TMP105=y\n CONFIG_TMP421=y\n+CONFIG_PCA9552=y\n CONFIG_STELLARIS=y\n CONFIG_STELLARIS_INPUT=y\n CONFIG_STELLARIS_ENET=y\ndiff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs\nindex 29fb922cefc6..33ba1d6642f9 100644\n--- a/hw/misc/Makefile.objs\n+++ b/hw/misc/Makefile.objs\n@@ -7,6 +7,7 @@ common-obj-$(CONFIG_SGA) += sga.o\n common-obj-$(CONFIG_ISA_TESTDEV) += pc-testdev.o\n common-obj-$(CONFIG_PCI_TESTDEV) += pci-testdev.o\n common-obj-$(CONFIG_EDU) += edu.o\n+common-obj-$(CONFIG_PCA9552) += pca9552.o\n \n common-obj-y += unimp.o\n \ndiff --git a/hw/misc/pca9552.c b/hw/misc/pca9552.c\nnew file mode 100644\nindex 000000000000..22460f4c14fe\n--- /dev/null\n+++ b/hw/misc/pca9552.c\n@@ -0,0 +1,212 @@\n+/*\n+ * PCA9552 I2C LED blinker\n+ *\n+ * Copyright (c) 2017, IBM Corporation.\n+ *\n+ * This work is licensed under the terms of the GNU GPL, version 2 or\n+ * later. See the COPYING file in the top-level directory.\n+ */\n+\n+#include \"qemu/osdep.h\"\n+#include \"qemu/log.h\"\n+#include \"hw/hw.h\"\n+#include \"hw/misc/pca9552.h\"\n+\n+#define PCA9552_INPUT0 0 /* read only input register 0 */\n+#define PCA9552_INPUT1 1 /* read only input register 1 */\n+#define PCA9552_PSC0 2 /* read/write frequency prescaler 0 */\n+#define PCA9552_PWM0 3 /* read/write PWM register 0 */\n+#define PCA9552_PSC1 4 /* read/write frequency prescaler 1 */\n+#define PCA9552_PWM1 5 /* read/write PWM register 1 */\n+#define PCA9552_LS0 6 /* read/write LED0 to LED3 selector */\n+#define PCA9552_LS1 7 /* read/write LED4 to LED7 selector */\n+#define PCA9552_LS2 8 /* read/write LED8 to LED11 selector */\n+#define PCA9552_LS3 9 /* read/write LED12 to LED15 selector */\n+\n+#define PCA9552_LED_ON 0x0\n+#define PCA9552_LED_OFF 0x1\n+#define PCA9552_LED_PWM0 0x2\n+#define PCA9552_LED_PWM1 0x3\n+\n+static uint8_t pca9552_pin_get_config(PCA9552State *s, int pin)\n+{\n+ uint8_t reg = PCA9552_LS0 + (pin / 4);\n+ uint8_t shift = (pin % 4) << 1;\n+\n+ return (s->regs[reg] >> shift) & 0x3;\n+}\n+\n+static void pca9552_update_pin_input(PCA9552State *s)\n+{\n+ int i;\n+\n+ for (i = 0; i < 16; i++) {\n+ uint8_t input_reg = PCA9552_INPUT0 + (i / 8);\n+ uint8_t input_shift = (i % 8);\n+ uint8_t config = pca9552_pin_get_config(s, i);\n+\n+ switch (config) {\n+ case PCA9552_LED_ON:\n+ s->regs[input_reg] |= 1 << input_shift;\n+ break;\n+ case PCA9552_LED_OFF:\n+ s->regs[input_reg] &= ~(1 << input_shift);\n+ break;\n+ case PCA9552_LED_PWM0:\n+ case PCA9552_LED_PWM1:\n+ /* ??? */\n+ default:\n+ break;\n+ }\n+ }\n+}\n+\n+static void pca9552_read(PCA9552State *s)\n+{\n+ uint8_t reg = s->pointer & 0xf;\n+\n+ s->len = 0;\n+\n+ switch (reg) {\n+ case PCA9552_INPUT0:\n+ case PCA9552_INPUT1:\n+ case PCA9552_PSC0:\n+ case PCA9552_PWM0:\n+ case PCA9552_PSC1:\n+ case PCA9552_PWM1:\n+ case PCA9552_LS0:\n+ case PCA9552_LS1:\n+ case PCA9552_LS2:\n+ case PCA9552_LS3:\n+ s->buf[s->len++] = s->regs[reg];\n+ break;\n+ default:\n+ qemu_log_mask(LOG_GUEST_ERROR, \"%s: unexpected read to register %d\\n\",\n+ __func__, reg);\n+ }\n+}\n+\n+static void pca9552_write(PCA9552State *s)\n+{\n+ uint8_t reg = s->pointer & 0xf;\n+\n+ switch (reg) {\n+ case PCA9552_PSC0:\n+ case PCA9552_PWM0:\n+ case PCA9552_PSC1:\n+ case PCA9552_PWM1:\n+ s->regs[reg] = s->buf[0];\n+ break;\n+\n+ case PCA9552_LS0:\n+ case PCA9552_LS1:\n+ case PCA9552_LS2:\n+ case PCA9552_LS3:\n+ s->regs[reg] = s->buf[0];\n+ pca9552_update_pin_input(s);\n+ break;\n+\n+ case PCA9552_INPUT0:\n+ case PCA9552_INPUT1:\n+ default:\n+ qemu_log_mask(LOG_GUEST_ERROR, \"%s: unexpected write to register %d\\n\",\n+ __func__, reg);\n+ }\n+}\n+\n+static int pca9552_recv(I2CSlave *i2c)\n+{\n+ PCA9552State *s = PCA9552(i2c);\n+\n+ if (s->len < sizeof(s->buf)) {\n+ return s->buf[s->len++];\n+ } else {\n+ return 0xff;\n+ }\n+}\n+\n+static int pca9552_send(I2CSlave *i2c, uint8_t data)\n+{\n+ PCA9552State *s = PCA9552(i2c);\n+\n+ if (s->len == 0) {\n+ s->pointer = data;\n+ s->len++;\n+ } else {\n+ if (s->len <= sizeof(s->buf)) {\n+ s->buf[s->len - 1] = data;\n+ }\n+ s->len++;\n+ pca9552_write(s);\n+ }\n+\n+ return 0;\n+}\n+\n+static int pca9552_event(I2CSlave *i2c, enum i2c_event event)\n+{\n+ PCA9552State *s = PCA9552(i2c);\n+\n+ if (event == I2C_START_RECV) {\n+ pca9552_read(s);\n+ }\n+\n+ s->len = 0;\n+ return 0;\n+}\n+\n+static const VMStateDescription pca9552_vmstate = {\n+ .name = \"PCA9552\",\n+ .version_id = 0,\n+ .minimum_version_id = 0,\n+ .fields = (VMStateField[]) {\n+ VMSTATE_UINT8(len, PCA9552State),\n+ VMSTATE_UINT8(pointer, PCA9552State),\n+ VMSTATE_UINT8_ARRAY(buf, PCA9552State, 1),\n+ VMSTATE_UINT8_ARRAY(regs, PCA9552State, PCA9552_NR_REGS),\n+ VMSTATE_I2C_SLAVE(i2c, PCA9552State),\n+ VMSTATE_END_OF_LIST()\n+ }\n+};\n+\n+static void pca9552_reset(DeviceState *dev)\n+{\n+ PCA9552State *s = PCA9552(dev);\n+\n+ s->regs[PCA9552_PSC0] = 0xFF;\n+ s->regs[PCA9552_PWM0] = 0x80;\n+ s->regs[PCA9552_PSC1] = 0xFF;\n+ s->regs[PCA9552_PWM1] = 0x80;\n+ s->regs[PCA9552_LS0] = 0x55; /* all OFF */\n+ s->regs[PCA9552_LS1] = 0x55;\n+ s->regs[PCA9552_LS2] = 0x55;\n+ s->regs[PCA9552_LS3] = 0x55;\n+\n+ pca9552_update_pin_input(s);\n+}\n+\n+static void pca9552_class_init(ObjectClass *klass, void *data)\n+{\n+ DeviceClass *dc = DEVICE_CLASS(klass);\n+ I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);\n+\n+ k->event = pca9552_event;\n+ k->recv = pca9552_recv;\n+ k->send = pca9552_send;\n+ dc->reset = pca9552_reset;\n+ dc->vmsd = &pca9552_vmstate;\n+}\n+\n+static const TypeInfo pca9552_info = {\n+ .name = TYPE_PCA9552,\n+ .parent = TYPE_I2C_SLAVE,\n+ .instance_size = sizeof(PCA9552State),\n+ .class_init = pca9552_class_init,\n+};\n+\n+static void pca9552_register_types(void)\n+{\n+ type_register_static(&pca9552_info);\n+}\n+\n+type_init(pca9552_register_types)\ndiff --git a/include/hw/misc/pca9552.h b/include/hw/misc/pca9552.h\nnew file mode 100644\nindex 000000000000..875467725526\n--- /dev/null\n+++ b/include/hw/misc/pca9552.h\n@@ -0,0 +1,32 @@\n+/*\n+ * PCA9552 I2C LED blinker\n+ *\n+ * Copyright (c) 2017, IBM Corporation.\n+ *\n+ * This work is licensed under the terms of the GNU GPL, version 2 or\n+ * later. See the COPYING file in the top-level directory.\n+ */\n+#ifndef PCA9552_H\n+#define PCA9552_H\n+\n+#include \"hw/i2c/i2c.h\"\n+\n+#define TYPE_PCA9552 \"pca9552\"\n+#define PCA9552(obj) OBJECT_CHECK(PCA9552State, (obj), TYPE_PCA9552)\n+\n+\n+#define PCA9552_NR_REGS 10\n+\n+typedef struct PCA9552State {\n+ /*< private >*/\n+ I2CSlave i2c;\n+ /*< public >*/\n+\n+ uint8_t len;\n+ uint8_t pointer;\n+ uint8_t buf[1]; /* just to remember how to handle a larger buffer */\n+\n+ uint8_t regs[PCA9552_NR_REGS];\n+} PCA9552State;\n+\n+#endif\n", "prefixes": [ "4/5" ] }