Thanks, this will become very handy when working on IO infrastructure.
--Gordon On Fri, Jul 24, 2020 at 09:14:59PM +0000, Ilya Bakulin wrote: > Author: kibab > Date: Fri Jul 24 21:14:59 2020 > New Revision: 363497 > URL: https://svnweb.freebsd.org/changeset/base/363497 > > Log: > Make it possible to get/set MMC frequency from camcontrol > > Enhance camcontrol(8) so that it's possible to manually set frequency for > SD/MMC cards. > While here, display more information about the current controller, such as > supported operating modes and VCCQ voltages, as well as current VCCQ > voltage. > > Reviewed by: manu > Approved by: imp (mentor) > Differential Revision: https://reviews.freebsd.org/D25795 > > Modified: > head/sbin/camcontrol/camcontrol.c > > Modified: head/sbin/camcontrol/camcontrol.c > ============================================================================== > --- head/sbin/camcontrol/camcontrol.c Fri Jul 24 20:54:07 2020 > (r363496) > +++ head/sbin/camcontrol/camcontrol.c Fri Jul 24 21:14:59 2020 > (r363497) > @@ -190,7 +190,7 @@ static struct camcontrol_opts option_table[] = { > {"rescan", CAM_CMD_RESCAN, CAM_ARG_NONE, NULL}, > {"reset", CAM_CMD_RESET, CAM_ARG_NONE, NULL}, > {"cmd", CAM_CMD_SCSI_CMD, CAM_ARG_NONE, scsicmd_opts}, > - {"mmcsdcmd", CAM_CMD_MMCSD_CMD, CAM_ARG_NONE, "c:a:f:Wb:l:41S:I"}, > + {"mmcsdcmd", CAM_CMD_MMCSD_CMD, CAM_ARG_NONE, "c:a:F:f:Wb:l:41S:I"}, > {"command", CAM_CMD_SCSI_CMD, CAM_ARG_NONE, scsicmd_opts}, > {"smpcmd", CAM_CMD_SMP_CMD, CAM_ARG_NONE, "r:R:"}, > {"smprg", CAM_CMD_SMP_RG, CAM_ARG_NONE, smprg_opts}, > @@ -7833,10 +7833,12 @@ mmcsdcmd(struct cam_device *device, int argc, char **a > int retval; > int is_write = 0; > int is_bw_4 = 0, is_bw_1 = 0; > + int is_frequency = 0; > int is_highspeed = 0, is_stdspeed = 0; > int is_info_request = 0; > int flags = 0; > uint8_t mmc_data_byte = 0; > + uint32_t mmc_frequency = 0; > > /* For IO_RW_EXTENDED command */ > uint8_t *mmc_data = NULL; > @@ -7873,6 +7875,10 @@ mmcsdcmd(struct cam_device *device, int argc, char **a > case 'I': > is_info_request = 1; > break; > + case 'F': > + is_frequency = 1; > + mmc_frequency = strtol(optarg, NULL, 0); > + break; > case 'c': > mmc_opcode = strtol(optarg, NULL, 0); > if (mmc_opcode < 0) { > @@ -7978,6 +7984,23 @@ mmcsdcmd(struct cam_device *device, int argc, char **a > return (retval); > } > > + if (is_frequency) { > + struct ccb_trans_settings_mmc *cts; > + ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; > + ccb->ccb_h.flags = 0; > + cts = &ccb->cts.proto_specific.mmc; > + cts->ios.clock = mmc_frequency; > + cts->ios_valid = MMC_CLK; > + if (((retval = cam_send_ccb(device, ccb)) < 0) > + || ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)) { > + warn("Error sending command"); > + } else { > + printf("Parameters set OK\n"); > + } > + cam_freeccb(ccb); > + return (retval); > + } > + > // Switch bus speed instead of sending IO command > if (is_stdspeed || is_highspeed) { > struct ccb_trans_settings_mmc *cts; > @@ -8011,13 +8034,48 @@ mmcsdcmd(struct cam_device *device, int argc, char **a > printf("Host OCR: 0x%x\n", cts->host_ocr); > printf("Min frequency: %u KHz\n", cts->host_f_min / 1000); > printf("Max frequency: %u MHz\n", cts->host_f_max / 1000000); > - printf("Supported bus width: "); > + printf("Supported bus width:\n"); > if (cts->host_caps & MMC_CAP_4_BIT_DATA) > printf(" 4 bit\n"); > if (cts->host_caps & MMC_CAP_8_BIT_DATA) > printf(" 8 bit\n"); > - printf("\nCurrent settings:\n"); > - printf("Bus width: "); > + > + printf("Supported operating modes:\n"); > + if (cts->host_caps & MMC_CAP_HSPEED) > + printf(" Can do High Speed transfers\n"); > + if (cts->host_caps & MMC_CAP_UHS_SDR12) > + printf(" Can do UHS SDR12\n"); > + if (cts->host_caps & MMC_CAP_UHS_SDR25) > + printf(" Can do UHS SDR25\n"); > + if (cts->host_caps & MMC_CAP_UHS_SDR50) > + printf(" Can do UHS SDR50\n"); > + if (cts->host_caps & MMC_CAP_UHS_SDR104) > + printf(" Can do UHS SDR104\n"); > + if (cts->host_caps & MMC_CAP_UHS_DDR50) > + printf(" Can do UHS DDR50\n"); > + if (cts->host_caps & MMC_CAP_MMC_DDR52_120) > + printf(" Can do eMMC DDR52 at 1.2V\n"); > + if (cts->host_caps & MMC_CAP_MMC_DDR52_180) > + printf(" Can do eMMC DDR52 at 1.8V\n"); > + if (cts->host_caps & MMC_CAP_MMC_HS200_120) > + printf(" Can do eMMC HS200 at 1.2V\n"); > + if (cts->host_caps & MMC_CAP_MMC_HS200_180) > + printf(" Can do eMMC HS200 at 1.8V\n"); > + if (cts->host_caps & MMC_CAP_MMC_HS400_120) > + printf(" Can do eMMC HS400 at 1.2V\n"); > + if (cts->host_caps & MMC_CAP_MMC_HS400_180) > + printf(" Can do eMMC HS400 at 1.8V\n"); > + > + printf("Supported VCCQ voltages:\n"); > + if (cts->host_caps & MMC_CAP_SIGNALING_120) > + printf(" 1.2V\n"); > + if (cts->host_caps & MMC_CAP_SIGNALING_180) > + printf(" 1.8V\n"); > + if (cts->host_caps & MMC_CAP_SIGNALING_330) > + printf(" 3.3V\n"); > + > + printf("Current settings:\n"); > + printf(" Bus width: "); > switch (cts->ios.bus_width) { > case bus_width_1: > printf("1 bit\n"); > @@ -8029,10 +8087,23 @@ mmcsdcmd(struct cam_device *device, int argc, char **a > printf("8 bit\n"); > break; > } > - printf("Freq: %d.%03d MHz%s\n", > + printf(" Freq: %d.%03d MHz%s\n", > cts->ios.clock / 1000000, > (cts->ios.clock / 1000) % 1000, > - cts->ios.timing == bus_timing_hs ? "(high-speed timing)" > : ""); > + cts->ios.timing == bus_timing_hs ? " (high-speed > timing)" : ""); > + > + printf(" VCCQ: "); > + switch (cts->ios.vccq) { > + case vccq_330: > + printf("3.3V\n"); > + break; > + case vccq_180: > + printf("1.8V\n"); > + break; > + case vccq_120: > + printf("1.2V\n"); > + break; > + } > return (0); > } > > _______________________________________________ > 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"
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