Author: wulf Date: Thu May 4 23:12:45 2017 New Revision: 317817 URL: https://svnweb.freebsd.org/changeset/base/317817
Log: Set predefined logical touchpad sizes for several ancient Elan hw v.2 models. This change is based on Linux driver. Determine logical trace size. It used for calculation of touch sizes in surface units for MT-protocol type B evdev reports. Reviewed by: gonzo Approved by: gonzo (mentor) MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D10266 Modified: head/sys/dev/atkbdc/psm.c Modified: head/sys/dev/atkbdc/psm.c ============================================================================== --- head/sys/dev/atkbdc/psm.c Thu May 4 23:08:55 2017 (r317816) +++ head/sys/dev/atkbdc/psm.c Thu May 4 23:12:45 2017 (r317817) @@ -300,6 +300,8 @@ typedef struct elantechhw { int dpmmy; int ntracesx; int ntracesy; + int dptracex; + int dptracey; int issemimt; int isclickpad; int hascrc; @@ -6280,8 +6282,17 @@ enable_elantech(struct psm_softc *sc, en static const int ic2hw[] = /*IC: 0 1 2 3 4 5 6 7 8 9 a b c d e f */ { 0, 0, 2, 0, 2, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0 }; + static const int fw_sizes[][3] = { + /* FW.vers MaxX MaxY */ + { 0x020030, 1152, 768 }, + { 0x020800, 1152, 768 }, + { 0x020b00, 1152, 768 }, + { 0x040215, 900, 500 }, + { 0x040216, 819, 405 }, + { 0x040219, 900, 500 }, + }; elantechhw_t elanhw; - int icversion, hwversion, dptracex, dptracey, id, resp[3], dpix, dpiy; + int icversion, hwversion, xtr, i, id, resp[3], dpix, dpiy; KBDC kbdc = sc->kbdc; VLOG(3, (LOG_DEBUG, "elantech: BEGIN init\n")); @@ -6332,8 +6343,8 @@ enable_elantech(struct psm_softc *sc, en return (FALSE); } - elanhw.ntracesx = resp[1] - 1; - elanhw.ntracesy = resp[2] - 1; + elanhw.ntracesx = imax(resp[1], 3); + elanhw.ntracesy = imax(resp[2], 3); elanhw.hastrackpoint = (resp[0] & 0x80) != 0; /* Get the touchpad resolution */ @@ -6367,24 +6378,35 @@ enable_elantech(struct psm_softc *sc, en * On HW v.3 touchpads it should be done after switching hardware * to real resolution mode (by setting bit 3 of reg10) */ + elanhw.dptracex = elanhw.dptracey = 64; + for (i = 0; i < nitems(fw_sizes); i++) { + if (elanhw.fwversion == fw_sizes[i][0]) { + elanhw.sizex = fw_sizes[i][1]; + elanhw.sizey = fw_sizes[i][2]; + goto found; + } + } if (elantech_cmd(kbdc, hwversion, ELANTECH_FW_ID, resp) != 0) { printf(" Failed to read touchpad size\n"); elanhw.sizex = 10000; /* Arbitrary high values to */ elanhw.sizey = 10000; /* prevent clipping in smoother */ } else if (hwversion == 2) { - dptracex = dptracey = 64; if ((elanhw.fwversion >> 16) == 0x14 && (resp[1] & 0x10) && !elantech_cmd(kbdc, hwversion, ELANTECH_SAMPLE, resp)) { - dptracex = resp[1] / 2; - dptracey = resp[2] / 2; + elanhw.dptracex = resp[1] / 2; + elanhw.dptracey = resp[2] / 2; } - elanhw.sizex = (elanhw.ntracesx - 1) * dptracex; - elanhw.sizey = (elanhw.ntracesy - 1) * dptracey; + xtr = ((elanhw.fwversion >> 8) == 0x0208) ? 1 : 2; + elanhw.sizex = (elanhw.ntracesx - xtr) * elanhw.dptracex; + elanhw.sizey = (elanhw.ntracesy - xtr) * elanhw.dptracey; } else { elanhw.sizex = (resp[0] & 0x0f) << 8 | resp[1]; elanhw.sizey = (resp[0] & 0xf0) << 4 | resp[2]; + xtr = (elanhw.sizex % (elanhw.ntracesx - 2) == 0) ? 2 : 1; + elanhw.dptracex = elanhw.sizex / (elanhw.ntracesx - xtr); + elanhw.dptracey = elanhw.sizey / (elanhw.ntracesy - xtr); } - +found: if (verbose >= 2) { printf(" Model information:\n"); printf(" MaxX: %d\n", elanhw.sizex); @@ -6393,6 +6415,8 @@ enable_elantech(struct psm_softc *sc, en printf(" DpmmY: %d\n", elanhw.dpmmy); printf(" TracesX: %d\n", elanhw.ntracesx); printf(" TracesY: %d\n", elanhw.ntracesy); + printf(" DptraceX: %d\n", elanhw.dptracex); + printf(" DptraceY: %d\n", elanhw.dptracey); printf(" SemiMT: %d\n", elanhw.issemimt); printf(" Clickpad: %d\n", elanhw.isclickpad); printf(" Trackpoint: %d\n", elanhw.hastrackpoint); _______________________________________________ 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"
