Ronald G. Minnich | cae09e0 | 2013-11-19 17:42:41 -0800 | [diff] [blame] | 1 | #include <stdint.h> |
Gerd Hoffmann | 414b947 | 2013-06-18 23:41:21 +0200 | [diff] [blame] | 2 | #include <delay.h> |
Ronald G. Minnich | cae09e0 | 2013-11-19 17:42:41 -0800 | [diff] [blame] | 3 | #include <edid.h> |
Gerd Hoffmann | 414b947 | 2013-06-18 23:41:21 +0200 | [diff] [blame] | 4 | #include <stdlib.h> |
| 5 | #include <string.h> |
| 6 | #include <arch/io.h> |
| 7 | |
| 8 | #include <boot/coreboot_tables.h> |
| 9 | #include <console/console.h> |
| 10 | #include <device/device.h> |
| 11 | #include <device/pci.h> |
| 12 | #include <device/pci_ids.h> |
| 13 | #include <device/pci_ops.h> |
Vladimir Serbinenko | db7d04d | 2014-02-22 10:35:45 +0100 | [diff] [blame] | 14 | #include <pc80/vga.h> |
| 15 | #include <pc80/vga_io.h> |
Gerd Hoffmann | 414b947 | 2013-06-18 23:41:21 +0200 | [diff] [blame] | 16 | |
| 17 | /* VGA init. We use the Bochs VESA VBE extensions */ |
| 18 | #define VBE_DISPI_IOPORT_INDEX 0x01CE |
| 19 | #define VBE_DISPI_IOPORT_DATA 0x01CF |
| 20 | |
| 21 | #define VBE_DISPI_INDEX_ID 0x0 |
| 22 | #define VBE_DISPI_INDEX_XRES 0x1 |
| 23 | #define VBE_DISPI_INDEX_YRES 0x2 |
| 24 | #define VBE_DISPI_INDEX_BPP 0x3 |
| 25 | #define VBE_DISPI_INDEX_ENABLE 0x4 |
| 26 | #define VBE_DISPI_INDEX_BANK 0x5 |
| 27 | #define VBE_DISPI_INDEX_VIRT_WIDTH 0x6 |
| 28 | #define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7 |
| 29 | #define VBE_DISPI_INDEX_X_OFFSET 0x8 |
| 30 | #define VBE_DISPI_INDEX_Y_OFFSET 0x9 |
| 31 | #define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa |
| 32 | |
| 33 | #define VBE_DISPI_ID0 0xB0C0 |
| 34 | #define VBE_DISPI_ID1 0xB0C1 |
| 35 | #define VBE_DISPI_ID2 0xB0C2 |
| 36 | #define VBE_DISPI_ID4 0xB0C4 |
| 37 | #define VBE_DISPI_ID5 0xB0C5 |
| 38 | |
| 39 | #define VBE_DISPI_DISABLED 0x00 |
| 40 | #define VBE_DISPI_ENABLED 0x01 |
| 41 | #define VBE_DISPI_LFB_ENABLED 0x40 |
| 42 | #define VBE_DISPI_NOCLEARMEM 0x80 |
| 43 | |
Vladimir Serbinenko | db7d04d | 2014-02-22 10:35:45 +0100 | [diff] [blame] | 44 | #if IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE) |
Gerd Hoffmann | 414b947 | 2013-06-18 23:41:21 +0200 | [diff] [blame] | 45 | static int width = CONFIG_DRIVERS_EMULATION_QEMU_BOCHS_XRES; |
| 46 | static int height = CONFIG_DRIVERS_EMULATION_QEMU_BOCHS_YRES; |
Gerd Hoffmann | 414b947 | 2013-06-18 23:41:21 +0200 | [diff] [blame] | 47 | |
| 48 | static void bochs_write(int index, int val) |
| 49 | { |
| 50 | outw(index, VBE_DISPI_IOPORT_INDEX); |
| 51 | outw(val, VBE_DISPI_IOPORT_DATA); |
| 52 | } |
| 53 | |
| 54 | static int bochs_read(int index) |
| 55 | { |
| 56 | outw(index, VBE_DISPI_IOPORT_INDEX); |
| 57 | return inw(VBE_DISPI_IOPORT_DATA); |
| 58 | } |
Vladimir Serbinenko | db7d04d | 2014-02-22 10:35:45 +0100 | [diff] [blame] | 59 | #endif |
Gerd Hoffmann | 414b947 | 2013-06-18 23:41:21 +0200 | [diff] [blame] | 60 | |
Edward O'Callaghan | 2c9d2cf | 2014-10-27 23:29:29 +1100 | [diff] [blame^] | 61 | static void bochs_init(struct device *dev) |
Gerd Hoffmann | 414b947 | 2013-06-18 23:41:21 +0200 | [diff] [blame] | 62 | { |
Vladimir Serbinenko | db7d04d | 2014-02-22 10:35:45 +0100 | [diff] [blame] | 63 | #if IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE) |
Gerd Hoffmann | 748a6b1 | 2013-11-25 17:12:07 +0100 | [diff] [blame] | 64 | struct edid edid; |
Gerd Hoffmann | 414b947 | 2013-06-18 23:41:21 +0200 | [diff] [blame] | 65 | int id, mem, bar; |
Gerd Hoffmann | 748a6b1 | 2013-11-25 17:12:07 +0100 | [diff] [blame] | 66 | u32 addr; |
Gerd Hoffmann | 414b947 | 2013-06-18 23:41:21 +0200 | [diff] [blame] | 67 | |
| 68 | /* bochs dispi detection */ |
| 69 | id = bochs_read(VBE_DISPI_INDEX_ID); |
| 70 | if ((id & 0xfff0) != VBE_DISPI_ID0) { |
| 71 | printk(BIOS_DEBUG, "QEMU VGA: bochs dispi: ID mismatch.\n"); |
| 72 | return; |
| 73 | } |
| 74 | mem = bochs_read(VBE_DISPI_INDEX_VIDEO_MEMORY_64K) * 64 * 1024; |
Gerd Hoffmann | 414b947 | 2013-06-18 23:41:21 +0200 | [diff] [blame] | 75 | |
| 76 | /* find lfb pci bar */ |
| 77 | addr = pci_read_config32(dev, PCI_BASE_ADDRESS_0); |
| 78 | if ((addr & PCI_BASE_ADDRESS_SPACE) == PCI_BASE_ADDRESS_SPACE_MEMORY) { |
| 79 | /* qemu -vga {std,qxl} */ |
| 80 | bar = 0; |
| 81 | } else { |
| 82 | /* qemu -vga vmware */ |
| 83 | addr = pci_read_config32(dev, PCI_BASE_ADDRESS_1); |
| 84 | bar = 1; |
| 85 | } |
| 86 | addr &= ~PCI_BASE_ADDRESS_MEM_ATTR_MASK; |
Ronald G. Minnich | cae09e0 | 2013-11-19 17:42:41 -0800 | [diff] [blame] | 87 | |
| 88 | if (!addr) |
| 89 | return; |
| 90 | |
| 91 | printk(BIOS_DEBUG, "QEMU VGA: bochs dispi interface found, " |
| 92 | "%d MiB video memory\n", mem / ( 1024 * 1024)); |
Gerd Hoffmann | 414b947 | 2013-06-18 23:41:21 +0200 | [diff] [blame] | 93 | printk(BIOS_DEBUG, "QEMU VGA: framebuffer @ %x (pci bar %d)\n", |
| 94 | addr, bar); |
| 95 | |
| 96 | /* setup video mode */ |
| 97 | bochs_write(VBE_DISPI_INDEX_ENABLE, 0); |
| 98 | bochs_write(VBE_DISPI_INDEX_BANK, 0); |
| 99 | bochs_write(VBE_DISPI_INDEX_BPP, 32); |
| 100 | bochs_write(VBE_DISPI_INDEX_XRES, width); |
| 101 | bochs_write(VBE_DISPI_INDEX_YRES, height); |
| 102 | bochs_write(VBE_DISPI_INDEX_VIRT_WIDTH, width); |
| 103 | bochs_write(VBE_DISPI_INDEX_VIRT_HEIGHT, height); |
| 104 | bochs_write(VBE_DISPI_INDEX_X_OFFSET, 0); |
| 105 | bochs_write(VBE_DISPI_INDEX_Y_OFFSET, 0); |
| 106 | bochs_write(VBE_DISPI_INDEX_ENABLE, |
| 107 | VBE_DISPI_ENABLED | VBE_DISPI_LFB_ENABLED); |
| 108 | |
| 109 | outb(0x20, 0x3c0); /* disable blanking */ |
Gerd Hoffmann | 748a6b1 | 2013-11-25 17:12:07 +0100 | [diff] [blame] | 110 | |
| 111 | /* setup coreboot framebuffer */ |
Ronald G. Minnich | cae09e0 | 2013-11-19 17:42:41 -0800 | [diff] [blame] | 112 | edid.ha = width; |
| 113 | edid.va = height; |
Vladimir Serbinenko | dd9945b | 2013-12-16 23:19:01 +0100 | [diff] [blame] | 114 | edid.x_resolution = width; |
| 115 | edid.y_resolution = height; |
| 116 | edid.bytes_per_line = width * 4; |
Gerd Hoffmann | 4f62732 | 2014-08-27 10:42:47 +0200 | [diff] [blame] | 117 | edid.framebuffer_bits_per_pixel = 32; |
| 118 | edid.panel_bits_per_color = 8; |
| 119 | edid.panel_bits_per_pixel = 24; |
Ronald G. Minnich | cae09e0 | 2013-11-19 17:42:41 -0800 | [diff] [blame] | 120 | set_vbe_mode_info_valid(&edid, addr); |
Vladimir Serbinenko | db7d04d | 2014-02-22 10:35:45 +0100 | [diff] [blame] | 121 | #else |
| 122 | vga_misc_write(0x1); |
| 123 | vga_textmode_init(); |
| 124 | #endif |
Gerd Hoffmann | 414b947 | 2013-06-18 23:41:21 +0200 | [diff] [blame] | 125 | } |
| 126 | |
| 127 | static struct device_operations qemu_graph_ops = { |
| 128 | .read_resources = pci_dev_read_resources, |
| 129 | .set_resources = pci_dev_set_resources, |
| 130 | .enable_resources = pci_dev_enable_resources, |
| 131 | .init = bochs_init, |
| 132 | .scan_bus = 0, |
| 133 | }; |
| 134 | |
| 135 | static const struct pci_driver qemu_stdvga_driver __pci_driver = { |
| 136 | .ops = &qemu_graph_ops, |
| 137 | .vendor = 0x1234, |
| 138 | .device = 0x1111, |
| 139 | }; |
| 140 | |
| 141 | static const struct pci_driver qemu_vmware_driver __pci_driver = { |
| 142 | .ops = &qemu_graph_ops, |
| 143 | .vendor = 0x15ad, |
| 144 | .device = 0x0405, |
| 145 | }; |
| 146 | static const struct pci_driver qemu_qxl_driver __pci_driver = { |
| 147 | .ops = &qemu_graph_ops, |
| 148 | .vendor = 0x1b36, |
| 149 | .device = 0x0100, |
| 150 | }; |