| Nico Huber | 47cea9a | 2026-06-30 21:42:23 +0200 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the flashprog project. |
| 3 | * |
| 4 | * Copyright (C) 2026 Nico Huber <nico.h@gmx.de> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | */ |
| 16 | |
| 17 | #include <stddef.h> |
| 18 | #include <stdint.h> |
| 19 | |
| 20 | #include "programmer.h" |
| 21 | #include "platform/pci.h" |
| 22 | #include "hwaccess_physmap.h" |
| 23 | #include "programmer/physmap.h" |
| 24 | |
| 25 | #define PCI_VENDOR_ID_LSI 0x1000 |
| 26 | |
| 27 | static const struct dev_entry scsi_lsi[] = { |
| 28 | {PCI_VENDOR_ID_LSI, 0x000f, OK, "LSI", "53c875" }, |
| 29 | |
| 30 | {0}, |
| 31 | }; |
| 32 | |
| 33 | static const struct par_master par_master_scsilsi = { |
| 34 | .chip_readb = mmio_chip_readb, |
| 35 | .chip_readw = mmio_chip_readw, |
| 36 | .chip_readl = mmio_chip_readl, |
| 37 | .chip_readn = mmio_chip_readn, |
| 38 | .chip_writeb = mmio_chip_writeb, |
| 39 | .chip_writew = mmio_chip_writew, |
| 40 | .chip_writel = mmio_chip_writel, |
| 41 | .chip_writen = fallback_chip_writen, |
| 42 | .map_flash = physmap, |
| 43 | .unmap_flash = physunmap, |
| 44 | }; |
| 45 | |
| 46 | static int scsilsi_init(struct flashprog_programmer *const prog) |
| 47 | { |
| 48 | struct pci_dev *const lsi = pcidev_init(scsi_lsi, PCI_BASE_ADDRESS_1); |
| 49 | if (!lsi) |
| 50 | return 1; |
| 51 | |
| 52 | const uint16_t command = pci_read_word(lsi, PCI_COMMAND); |
| 53 | if (!(command & PCI_COMMAND_MEMORY)) { |
| 54 | msg_perr("Error: PCI memory access is disabled.\n"); |
| 55 | return 1; |
| 56 | } |
| 57 | |
| 58 | const uint32_t rom_base = pci_read_long(lsi, PCI_ROM_ADDRESS); |
| 59 | if (!rom_base) { |
| 60 | msg_perr("Error: PCI ROM base is not configured.\n"); |
| 61 | return 1; |
| 62 | } |
| 63 | rpci_write_long(lsi, PCI_ROM_ADDRESS, rom_base | 1); |
| 64 | |
| 65 | /* TODO: Use ROM BAR size detection. */ |
| 66 | |
| 67 | return register_par_master(&par_master_scsilsi, BUS_PARALLEL, rom_base & ~1u, 1*MiB, NULL); |
| 68 | } |
| 69 | |
| 70 | const struct programmer_entry programmer_scsilsi = { |
| 71 | .name = "scsilsi", |
| 72 | .type = PCI, |
| 73 | .devs.dev = scsi_lsi, |
| 74 | .init = scsilsi_init, |
| 75 | }; |