2 /* Realtek PCI-Express SD/MMC Card Interface driver
17 #include <linux/mmc/host.h>
18 #include <linux/mmc/mmc.h>
19 #include <linux/mmc/sd.h>
20 #include <linux/mmc/sdio.h>
21 #include <linux/mmc/card.h>
29 	struct mmc_host		*mmc;  member
49 static int sdmmc_init_sd_express(struct mmc_host *mmc, struct mmc_ios *ios);
180 static void sdmmc_pre_req(struct mmc_host *mmc, struct mmc_request *mrq)  in sdmmc_pre_req()  argument
182 	struct realtek_pci_sdmmc *host = mmc_priv(mmc);  in sdmmc_pre_req()
196 static void sdmmc_post_req(struct mmc_host *mmc, struct mmc_request *mrq,  in sdmmc_post_req()  argument
199 	struct realtek_pci_sdmmc *host = mmc_priv(mmc);  in sdmmc_post_req()
222 	dev_dbg(sdmmc_dev(host), "%s: SD/MMC CMD %d, arg = 0x%08x\n",  in sd_send_cmd_get_rsp()
333 	dev_dbg(sdmmc_dev(host), "%s: SD/MMC CMD %d, arg = 0x%08x\n",  in sd_read_data()
386 	dev_dbg(sdmmc_dev(host), "%s: SD/MMC CMD %d, arg = 0x%08x\n",  in sd_write_data()
430 	struct mmc_host *mmc = host->mmc;  in sd_read_long_data()  local
431 	struct mmc_card *card = mmc->card;  in sd_read_long_data()
440 	dev_dbg(sdmmc_dev(host), "%s: SD/MMC CMD %d, arg = 0x%08x\n",  in sd_read_long_data()
488 	struct mmc_host *mmc = host->mmc;  in sd_write_long_data()  local
489 	struct mmc_card *card = mmc->card;  in sd_write_long_data()
501 	dev_dbg(sdmmc_dev(host), "%s: SD/MMC CMD %d, arg = 0x%08x\n",  in sd_write_long_data()
801 	struct mmc_host *mmc = host->mmc;  in sd_request()  local
842 			sdmmc_post_req(host->mmc, host->mrq, 0);  in sd_request()
869 	mmc_request_done(mmc, mrq);  in sd_request()
872 static void sdmmc_request(struct mmc_host *mmc, struct mmc_request *mrq)  in sdmmc_request()  argument
874 	struct realtek_pci_sdmmc *host = mmc_priv(mmc);  in sdmmc_request()
907 	struct mmc_host *mmc = host->mmc;  in sd_power_on()  local
956 			sdmmc_init_sd_express(mmc, NULL);  in sd_power_on()
960 			mmc->caps2 |= MMC_CAP2_SD_EXP | MMC_CAP2_SD_EXP_1_2V;  in sd_power_on()
969 			mmc->caps2 &= ~(MMC_CAP2_SD_EXP | MMC_CAP2_SD_EXP_1_2V);  in sd_power_on()
1086 static void sdmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)  in sdmmc_set_ios()  argument
1088 	struct realtek_pci_sdmmc *host = mmc_priv(mmc);  in sdmmc_set_ios()
1134 static int sdmmc_get_ro(struct mmc_host *mmc)  in sdmmc_get_ro()  argument
1136 	struct realtek_pci_sdmmc *host = mmc_priv(mmc);  in sdmmc_get_ro()
1159 static int sdmmc_get_cd(struct mmc_host *mmc)  in sdmmc_get_cd()  argument
1161 	struct realtek_pci_sdmmc *host = mmc_priv(mmc);  in sdmmc_get_cd()
1257 static int sdmmc_switch_voltage(struct mmc_host *mmc, struct mmc_ios *ios)  in sdmmc_switch_voltage()  argument
1259 	struct realtek_pci_sdmmc *host = mmc_priv(mmc);  in sdmmc_switch_voltage()
1309 static int sdmmc_execute_tuning(struct mmc_host *mmc, u32 opcode)  in sdmmc_execute_tuning()  argument
1311 	struct realtek_pci_sdmmc *host = mmc_priv(mmc);  in sdmmc_execute_tuning()
1327 	switch (mmc->ios.timing) {  in sdmmc_execute_tuning()
1348 	if ((mmc->ios.timing == MMC_TIMING_UHS_SDR104) ||  in sdmmc_execute_tuning()
1349 			(mmc->ios.timing == MMC_TIMING_UHS_SDR50))  in sdmmc_execute_tuning()
1351 	else if (mmc->ios.timing == MMC_TIMING_UHS_DDR50)  in sdmmc_execute_tuning()
1360 static int sdmmc_init_sd_express(struct mmc_host *mmc, struct mmc_ios *ios)  in sdmmc_init_sd_express()  argument
1363 	struct realtek_pci_sdmmc *host = mmc_priv(mmc);  in sdmmc_init_sd_express()
1427 	struct mmc_host *mmc = host->mmc;  in init_extra_caps()  local
1433 		mmc->caps |= MMC_CAP_UHS_SDR50;  in init_extra_caps()
1435 		mmc->caps |= MMC_CAP_UHS_SDR104;  in init_extra_caps()
1437 		mmc->caps |= MMC_CAP_UHS_DDR50;  in init_extra_caps()
1439 		mmc->caps |= MMC_CAP_1_8V_DDR;  in init_extra_caps()
1441 		mmc->caps |= MMC_CAP_8_BIT_DATA;  in init_extra_caps()
1443 		mmc->caps2 |= MMC_CAP2_NO_MMC;  in init_extra_caps()
1445 		mmc->caps2 |= MMC_CAP2_SD_EXP | MMC_CAP2_SD_EXP_1_2V;  in init_extra_caps()
1450 	struct mmc_host *mmc = host->mmc;  in realtek_init_host()  local
1453 	mmc->f_min = 250000;  in realtek_init_host()
1454 	mmc->f_max = 208000000;  in realtek_init_host()
1455 	mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;  in realtek_init_host()
1456 	mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_SD_HIGHSPEED |  in realtek_init_host()
1460 		mmc->caps = mmc->caps | MMC_CAP_AGGRESSIVE_PM;  in realtek_init_host()
1461 	mmc->caps2 = MMC_CAP2_NO_PRESCAN_POWERUP | MMC_CAP2_FULL_PWR_CYCLE |  in realtek_init_host()
1463 	mmc->max_current_330 = 400;  in realtek_init_host()
1464 	mmc->max_current_180 = 800;  in realtek_init_host()
1465 	mmc->ops = &realtek_pci_sdmmc_ops;  in realtek_init_host()
1469 	mmc->max_segs = 256;  in realtek_init_host()
1470 	mmc->max_seg_size = 65536;  in realtek_init_host()
1471 	mmc->max_blk_size = 512;  in realtek_init_host()
1472 	mmc->max_blk_count = 65535;  in realtek_init_host()
1473 	mmc->max_req_size = 524288;  in realtek_init_host()
1481 	mmc_detect_change(host->mmc, 0);  in rtsx_pci_sdmmc_card_event()
1486 	struct mmc_host *mmc;  in rtsx_pci_sdmmc_drv_probe()  local
1501 	mmc = devm_mmc_alloc_host(&pdev->dev, sizeof(*host));  in rtsx_pci_sdmmc_drv_probe()
1502 	if (!mmc)  in rtsx_pci_sdmmc_drv_probe()
1505 	host = mmc_priv(mmc);  in rtsx_pci_sdmmc_drv_probe()
1507 	mmc->ios.power_delay_ms = 5;  in rtsx_pci_sdmmc_drv_probe()
1508 	host->mmc = mmc;  in rtsx_pci_sdmmc_drv_probe()
1528 	ret = mmc_add_host(mmc);  in rtsx_pci_sdmmc_drv_probe()
1542 	struct mmc_host *mmc;  in rtsx_pci_sdmmc_drv_remove()  local
1547 	mmc = host->mmc;  in rtsx_pci_sdmmc_drv_remove()
1555 			mmc_hostname(mmc));  in rtsx_pci_sdmmc_drv_remove()
1562 		mmc_request_done(mmc, host->mrq);  in rtsx_pci_sdmmc_drv_remove()
1566 	mmc_remove_host(mmc);  in rtsx_pci_sdmmc_drv_remove()
1600 MODULE_DESCRIPTION("Realtek PCI-E SD/MMC Card Host Driver");