Author: avg Date: Wed Sep 13 13:03:29 2017 New Revision: 323540 URL: https://svnweb.freebsd.org/changeset/base/323540
Log: jedec_ts: add many more devices from various vendors The new IDs are taken from the hardware to which I have access and from open datasheets. Also, the hardware probing is moved to the device probe method. Reviewed by: rpokala MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D11730 Modified: head/sys/dev/jedec_ts/jedec_ts.c Modified: head/sys/dev/jedec_ts/jedec_ts.c ============================================================================== --- head/sys/dev/jedec_ts/jedec_ts.c Wed Sep 13 12:16:27 2017 (r323539) +++ head/sys/dev/jedec_ts/jedec_ts.c Wed Sep 13 13:03:29 2017 (r323540) @@ -42,6 +42,116 @@ __FBSDID("$FreeBSD$"); /* + * General device identification notes. + * + * The JEDEC TSE2004av specification defines the device ID that all compliant + * devices should use, but very few do in practice. Maybe that's because + * TSE2002av was rather vague about that. + * Rare examples are IDT TSE2004GB2B0 and Atmel AT30TSE004A, not sure if + * they are TSE2004av compliant by design or by accident. + * Also, the specification mandates that PCI SIG manufacturer IDs are to be + * used, but in practice the JEDEC manufacturer IDs are often used. + */ + +const struct ts_dev { + uint16_t vendor_id; + uint8_t device_id; + const char *description; +} known_devices[] = { + /* + * Analog Devices ADT7408. + * http://www.analog.com/media/en/technical-documentation/data-sheets/ADT7408.pdf + */ + { 0x11d4, 0x08, "Analog Devices DIMM temperature sensor" }, + + /* + * Atmel AT30TSE002B, AT30TSE004A. + * http://www.atmel.com/images/doc8711.pdf + * http://www.atmel.com/images/atmel-8868-dts-at30tse004a-datasheet.pdf + * Note how one chip uses the JEDEC Manufacturer ID while the other + * uses the PCI SIG one. + */ + { 0x001f, 0x82, "Atmel DIMM temperature sensor" }, + { 0x1114, 0x22, "Atmel DIMM temperature sensor" }, + + /* + * Integrated Device Technology (IDT) TS3000B3A, TSE2002B3C, + * TSE2004GB2B0 chips and their variants. + * http://www.idt.com/sites/default/files/documents/IDT_TSE2002B3C_DST_20100512_120303152056.pdf + * http://www.idt.com/sites/default/files/documents/IDT_TS3000B3A_DST_20101129_120303152013.pdf + * https://www.idt.com/document/dst/tse2004gb2b0-datasheet + */ + { 0x00b3, 0x29, "IDT DIMM temperature sensor" }, + { 0x00b3, 0x22, "IDT DIMM temperature sensor" }, + + /* + * Maxim Integrated MAX6604. + * Different document revisions specify different Device IDs. + * Document 19-3837; Rev 0; 10/05 has 0x3e00 while + * 19-3837; Rev 3; 10/11 has 0x5400. + * http://datasheets.maximintegrated.com/en/ds/MAX6604.pdf + */ + { 0x004d, 0x3e, "Maxim Integrated DIMM temperature sensor" }, + { 0x004d, 0x54, "Maxim Integrated DIMM temperature sensor" }, + + /* + * Microchip Technology MCP9805, MCP9843, MCP98242, MCP98243 + * and their variants. + * http://ww1.microchip.com/downloads/en/DeviceDoc/21977b.pdf + * Microchip Technology EMC1501. + * http://ww1.microchip.com/downloads/en/DeviceDoc/00001605A.pdf + */ + { 0x0054, 0x00, "Microchip DIMM temperature sensor" }, + { 0x0054, 0x20, "Microchip DIMM temperature sensor" }, + { 0x0054, 0x21, "Microchip DIMM temperature sensor" }, + { 0x1055, 0x08, "Microchip DIMM temperature sensor" }, + + /* + * NXP Semiconductors SE97 and SE98. + * http://www.nxp.com/docs/en/data-sheet/SE97B.pdf + */ + { 0x1131, 0xa1, "NXP DIMM temperature sensor" }, + { 0x1131, 0xa2, "NXP DIMM temperature sensor" }, + + /* + * ON Semiconductor CAT34TS02 revisions B and C, CAT6095 and compatible. + * https://www.onsemi.com/pub/Collateral/CAT34TS02-D.PDF + * http://www.onsemi.com/pub/Collateral/CAT6095-D.PDF + */ + { 0x1b09, 0x08, "ON Semiconductor DIMM temperature sensor" }, + { 0x1b09, 0x0a, "ON Semiconductor DIMM temperature sensor" }, + + /* + * ST[Microelectronics] STTS424E02, STTS2002 and others. + * http://www.st.com/resource/en/datasheet/cd00157558.pdf + * http://www.st.com/resource/en/datasheet/stts2002.pdf + */ + { 0x104a, 0x00, "ST DIMM temperature sensor" }, + { 0x104a, 0x03, "ST DIMM temperature sensor" }, +}; + +static const char * +ts_match_device(uint16_t vid, uint16_t did) +{ + const struct ts_dev *d; + int i; + + for (i = 0; i < nitems(known_devices); i++) { + d = &known_devices[i]; + if (vid == d->vendor_id && (did >> 8) == d->device_id) + return (d->description); + } + + /* + * If no match for a specific device, then check + * for a generic TSE2004av compliant device. + */ + if ((did >> 8) == 0x22) + return ("TSE2004av compliant DIMM temperature sensor"); + return (NULL); +} + +/* * SMBus specification defines little-endian byte order, * but it seems that the JEDEC devices expect it to * be big-endian. @@ -89,15 +199,7 @@ ts_temp_sysctl(SYSCTL_HANDLER_ARGS) static int ts_probe(device_t dev) { - device_set_desc(dev, "DIMM memory sensor"); - return (BUS_PROBE_DEFAULT); -} - -static int -ts_attach(device_t dev) -{ - struct sysctl_ctx_list *ctx; - struct sysctl_oid_list *tree; + const char *match; int err; uint16_t vendorid; uint16_t devid; @@ -119,26 +221,9 @@ ts_attach(device_t dev) device_printf(dev, "failed to read Device ID\n"); return (ENXIO); } - if ((devid & 0xff00) == 0x2200) { - /* - * Defined by JEDEC Standard No. 21-C, Release 26, - * Page 4.1.6 – 24 - */ - } else if (vendorid == 0x104a) { - /* - * STMicroelectronics datasheets say that - * device ID and revision can vary. - * E.g. STT424E02, Doc ID 13448 Rev 8, - * section 4.6, page 26. - */ - } else if (vendorid == 0xb3 && (devid & 0xff00) == 0x2900) { - /* - * IDT TS3000B3A and TSE2002B3C chips and their variants. - * Revision IDs (the lower byte) can vary. - * http://www.idt.com/sites/default/files/documents/IDT_TSE2002B3C_DST_20100512_120303152056.pdf - * http://www.idt.com/sites/default/files/documents/IDT_TS3000B3A_DST_20101129_120303152013.pdf - */ - } else { + + match = ts_match_device(vendorid, devid); + if (match == NULL) { if (bootverbose) { device_printf(dev, "Unknown Manufacturer and Device IDs" ", 0x%x and 0x%x\n", vendorid, devid); @@ -146,9 +231,18 @@ ts_attach(device_t dev) return (ENXIO); } + device_set_desc(dev, match); + return (BUS_PROBE_DEFAULT); +} + +static int +ts_attach(device_t dev) +{ + struct sysctl_ctx_list *ctx; + struct sysctl_oid_list *tree; + ctx = device_get_sysctl_ctx(dev); tree = SYSCTL_CHILDREN(device_get_sysctl_tree(dev)); - SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "temp", CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, 0, ts_temp_sysctl, "IK4", "Current temperature"); _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
