Lines Matching refs:hci
30 #define reg_read(r) readl(hci->base_regs + (r))
31 #define reg_write(r, v) writel(v, hci->base_regs + (r))
128 struct i3c_hci *hci = to_i3c_hci(m); in i3c_hci_bus_init() local
134 if (hci->cmd == &mipi_i3c_hci_cmd_v1) { in i3c_hci_bus_init()
135 ret = mipi_i3c_hci_dat_v1.init(hci); in i3c_hci_bus_init()
151 ret = hci->io->init(hci); in i3c_hci_bus_init()
163 struct i3c_hci *hci = to_i3c_hci(m); in i3c_hci_bus_cleanup() local
168 hci->io->cleanup(hci); in i3c_hci_bus_cleanup()
169 if (hci->cmd == &mipi_i3c_hci_cmd_v1) in i3c_hci_bus_cleanup()
170 mipi_i3c_hci_dat_v1.cleanup(hci); in i3c_hci_bus_cleanup()
173 void mipi_i3c_hci_resume(struct i3c_hci *hci) in mipi_i3c_hci_resume() argument
180 void mipi_i3c_hci_pio_reset(struct i3c_hci *hci) in mipi_i3c_hci_pio_reset() argument
186 void mipi_i3c_hci_dct_index_reset(struct i3c_hci *hci) in mipi_i3c_hci_dct_index_reset() argument
194 struct i3c_hci *hci = to_i3c_hci(m); in i3c_hci_send_ccc_cmd() local
196 bool raw = !!(hci->quirks & HCI_QUIRK_RAW_CCC); in i3c_hci_send_ccc_cmd()
213 hci->cmd->prep_ccc(hci, xfer, I3C_BROADCAST_ADDR, in i3c_hci_send_ccc_cmd()
222 ret = hci->cmd->prep_ccc(hci, &xfer[i], ccc->dests[i].addr, in i3c_hci_send_ccc_cmd()
235 ret = hci->io->queue_xfer(hci, xfer, nxfers); in i3c_hci_send_ccc_cmd()
239 hci->io->dequeue_xfer(hci, xfer, nxfers)) { in i3c_hci_send_ccc_cmd()
264 struct i3c_hci *hci = to_i3c_hci(m); in i3c_hci_daa() local
268 return hci->cmd->perform_daa(hci); in i3c_hci_daa()
276 struct i3c_hci *hci = to_i3c_hci(m); in i3c_hci_priv_xfers() local
288 size_limit = 1U << (16 + FIELD_GET(HC_CAP_MAX_DATA_LENGTH, hci->caps)); in i3c_hci_priv_xfers()
302 hci->cmd->prep_i3c_xfer(hci, dev, &xfer[i]); in i3c_hci_priv_xfers()
309 ret = hci->io->queue_xfer(hci, xfer, nxfers); in i3c_hci_priv_xfers()
313 hci->io->dequeue_xfer(hci, xfer, nxfers)) { in i3c_hci_priv_xfers()
335 struct i3c_hci *hci = to_i3c_hci(m); in i3c_hci_i2c_xfers() local
350 hci->cmd->prep_i2c_xfer(hci, dev, &xfer[i]); in i3c_hci_i2c_xfers()
357 ret = hci->io->queue_xfer(hci, xfer, nxfers); in i3c_hci_i2c_xfers()
361 hci->io->dequeue_xfer(hci, xfer, nxfers)) { in i3c_hci_i2c_xfers()
380 struct i3c_hci *hci = to_i3c_hci(m); in i3c_hci_attach_i3c_dev() local
389 if (hci->cmd == &mipi_i3c_hci_cmd_v1) { in i3c_hci_attach_i3c_dev()
390 ret = mipi_i3c_hci_dat_v1.alloc_entry(hci); in i3c_hci_attach_i3c_dev()
395 mipi_i3c_hci_dat_v1.set_dynamic_addr(hci, ret, dev->info.dyn_addr); in i3c_hci_attach_i3c_dev()
405 struct i3c_hci *hci = to_i3c_hci(m); in i3c_hci_reattach_i3c_dev() local
410 if (hci->cmd == &mipi_i3c_hci_cmd_v1) in i3c_hci_reattach_i3c_dev()
411 mipi_i3c_hci_dat_v1.set_dynamic_addr(hci, dev_data->dat_idx, in i3c_hci_reattach_i3c_dev()
419 struct i3c_hci *hci = to_i3c_hci(m); in i3c_hci_detach_i3c_dev() local
425 if (hci->cmd == &mipi_i3c_hci_cmd_v1) in i3c_hci_detach_i3c_dev()
426 mipi_i3c_hci_dat_v1.free_entry(hci, dev_data->dat_idx); in i3c_hci_detach_i3c_dev()
433 struct i3c_hci *hci = to_i3c_hci(m); in i3c_hci_attach_i2c_dev() local
439 if (hci->cmd != &mipi_i3c_hci_cmd_v1) in i3c_hci_attach_i2c_dev()
444 ret = mipi_i3c_hci_dat_v1.alloc_entry(hci); in i3c_hci_attach_i2c_dev()
449 mipi_i3c_hci_dat_v1.set_static_addr(hci, ret, dev->addr); in i3c_hci_attach_i2c_dev()
450 mipi_i3c_hci_dat_v1.set_flags(hci, ret, DAT_0_I2C_DEVICE, 0); in i3c_hci_attach_i2c_dev()
459 struct i3c_hci *hci = to_i3c_hci(m); in i3c_hci_detach_i2c_dev() local
466 if (hci->cmd == &mipi_i3c_hci_cmd_v1) in i3c_hci_detach_i2c_dev()
467 mipi_i3c_hci_dat_v1.free_entry(hci, dev_data->dat_idx); in i3c_hci_detach_i2c_dev()
476 struct i3c_hci *hci = to_i3c_hci(m); in i3c_hci_request_ibi() local
481 mipi_i3c_hci_dat_v1.set_flags(hci, dat_idx, DAT_0_IBI_PAYLOAD, 0); in i3c_hci_request_ibi()
483 mipi_i3c_hci_dat_v1.clear_flags(hci, dat_idx, DAT_0_IBI_PAYLOAD, 0); in i3c_hci_request_ibi()
484 return hci->io->request_ibi(hci, dev, req); in i3c_hci_request_ibi()
490 struct i3c_hci *hci = to_i3c_hci(m); in i3c_hci_free_ibi() local
492 hci->io->free_ibi(hci, dev); in i3c_hci_free_ibi()
498 struct i3c_hci *hci = to_i3c_hci(m); in i3c_hci_enable_ibi() local
501 mipi_i3c_hci_dat_v1.clear_flags(hci, dev_data->dat_idx, DAT_0_SIR_REJECT, 0); in i3c_hci_enable_ibi()
508 struct i3c_hci *hci = to_i3c_hci(m); in i3c_hci_disable_ibi() local
511 mipi_i3c_hci_dat_v1.set_flags(hci, dev_data->dat_idx, DAT_0_SIR_REJECT, 0); in i3c_hci_disable_ibi()
519 struct i3c_hci *hci = to_i3c_hci(m); in i3c_hci_recycle_ibi_slot() local
521 hci->io->recycle_ibi_slot(hci, dev, slot); in i3c_hci_recycle_ibi_slot()
545 struct i3c_hci *hci = dev_id; in i3c_hci_irq_handler() local
564 dev_err(&hci->master.dev, "Host Controller Internal Error\n"); in i3c_hci_irq_handler()
568 hci->io->irq_handler(hci, 0); in i3c_hci_irq_handler()
572 hci->io->irq_handler(hci, val & INTR_HC_RINGS); in i3c_hci_irq_handler()
576 dev_err(&hci->master.dev, "unexpected INTR_STATUS %#x\n", val); in i3c_hci_irq_handler()
583 static int i3c_hci_init(struct i3c_hci *hci) in i3c_hci_init() argument
590 hci->version_major = (regval >> 8) & 0xf; in i3c_hci_init()
591 hci->version_minor = (regval >> 4) & 0xf; in i3c_hci_init()
592 hci->revision = regval & 0xf; in i3c_hci_init()
593 dev_notice(&hci->master.dev, "MIPI I3C HCI v%u.%u r%02u\n", in i3c_hci_init()
594 hci->version_major, hci->version_minor, hci->revision); in i3c_hci_init()
602 dev_err(&hci->master.dev, "unsupported HCI version\n"); in i3c_hci_init()
606 hci->caps = reg_read(HC_CAPABILITIES); in i3c_hci_init()
607 DBG("caps = %#x", hci->caps); in i3c_hci_init()
611 hci->DAT_regs = offset ? hci->base_regs + offset : NULL; in i3c_hci_init()
612 hci->DAT_entries = FIELD_GET(DAT_TABLE_SIZE, regval); in i3c_hci_init()
613 hci->DAT_entry_size = FIELD_GET(DAT_ENTRY_SIZE, regval); in i3c_hci_init()
614 dev_info(&hci->master.dev, "DAT: %u %u-bytes entries at offset %#x\n", in i3c_hci_init()
615 hci->DAT_entries, hci->DAT_entry_size * 4, offset); in i3c_hci_init()
619 hci->DCT_regs = offset ? hci->base_regs + offset : NULL; in i3c_hci_init()
620 hci->DCT_entries = FIELD_GET(DCT_TABLE_SIZE, regval); in i3c_hci_init()
621 hci->DCT_entry_size = FIELD_GET(DCT_ENTRY_SIZE, regval); in i3c_hci_init()
622 dev_info(&hci->master.dev, "DCT: %u %u-bytes entries at offset %#x\n", in i3c_hci_init()
623 hci->DCT_entries, hci->DCT_entry_size * 4, offset); in i3c_hci_init()
627 hci->RHS_regs = offset ? hci->base_regs + offset : NULL; in i3c_hci_init()
628 dev_info(&hci->master.dev, "Ring Headers at offset %#x\n", offset); in i3c_hci_init()
632 hci->PIO_regs = offset ? hci->base_regs + offset : NULL; in i3c_hci_init()
633 dev_info(&hci->master.dev, "PIO section at offset %#x\n", offset); in i3c_hci_init()
637 hci->EXTCAPS_regs = offset ? hci->base_regs + offset : NULL; in i3c_hci_init()
638 dev_info(&hci->master.dev, "Extended Caps at offset %#x\n", offset); in i3c_hci_init()
640 ret = i3c_hci_parse_ext_caps(hci); in i3c_hci_init()
671 dev_err(&hci->master.dev, "cannot set BE mode\n"); in i3c_hci_init()
681 dev_err(&hci->master.dev, "cannot clear BE mode\n"); in i3c_hci_init()
688 switch (FIELD_GET(HC_CAP_CMD_SIZE, hci->caps)) { in i3c_hci_init()
690 hci->cmd = &mipi_i3c_hci_cmd_v1; in i3c_hci_init()
693 hci->cmd = &mipi_i3c_hci_cmd_v2; in i3c_hci_init()
696 dev_err(&hci->master.dev, "wrong CMD_SIZE capability value\n"); in i3c_hci_init()
701 if (hci->RHS_regs) { in i3c_hci_init()
704 dev_err(&hci->master.dev, "PIO mode is stuck\n"); in i3c_hci_init()
707 hci->io = &mipi_i3c_hci_dma; in i3c_hci_init()
708 dev_info(&hci->master.dev, "Using DMA\n"); in i3c_hci_init()
713 if (!hci->io && hci->PIO_regs) { in i3c_hci_init()
716 dev_err(&hci->master.dev, "DMA mode is stuck\n"); in i3c_hci_init()
719 hci->io = &mipi_i3c_hci_pio; in i3c_hci_init()
720 dev_info(&hci->master.dev, "Using PIO\n"); in i3c_hci_init()
724 if (!hci->io) { in i3c_hci_init()
725 dev_err(&hci->master.dev, "neither DMA nor PIO can be used\n"); in i3c_hci_init()
736 struct i3c_hci *hci; in i3c_hci_probe() local
739 hci = devm_kzalloc(&pdev->dev, sizeof(*hci), GFP_KERNEL); in i3c_hci_probe()
740 if (!hci) in i3c_hci_probe()
742 hci->base_regs = devm_platform_ioremap_resource(pdev, 0); in i3c_hci_probe()
743 if (IS_ERR(hci->base_regs)) in i3c_hci_probe()
744 return PTR_ERR(hci->base_regs); in i3c_hci_probe()
746 platform_set_drvdata(pdev, hci); in i3c_hci_probe()
748 hci->master.dev.init_name = dev_name(&pdev->dev); in i3c_hci_probe()
750 ret = i3c_hci_init(hci); in i3c_hci_probe()
756 0, NULL, hci); in i3c_hci_probe()
760 ret = i3c_master_register(&hci->master, &pdev->dev, in i3c_hci_probe()
770 struct i3c_hci *hci = platform_get_drvdata(pdev); in i3c_hci_remove() local
772 return i3c_master_unregister(&hci->master); in i3c_hci_remove()