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| author | Freya Murphy <freya@freyacat.org> | 2025-04-18 21:15:14 -0400 |
|---|---|---|
| committer | Freya Murphy <freya@freyacat.org> | 2025-04-18 21:15:14 -0400 |
| commit | 2a6c07a6ad1270319670fbebd190b74a4e9f11e3 (patch) | |
| tree | 57045471701540f44b16b1ff3638293fbe865a51 /kernel | |
| parent | fix compile warnings (diff) | |
| download | comus-2a6c07a6ad1270319670fbebd190b74a4e9f11e3.tar.gz comus-2a6c07a6ad1270319670fbebd190b74a4e9f11e3.tar.bz2 comus-2a6c07a6ad1270319670fbebd190b74a4e9f11e3.zip | |
more pci devices
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/drivers/pci.c | 8 | ||||
| -rw-r--r-- | kernel/include/comus/limits.h | 3 |
2 files changed, 7 insertions, 4 deletions
diff --git a/kernel/drivers/pci.c b/kernel/drivers/pci.c index ce2583f..6daba09 100644 --- a/kernel/drivers/pci.c +++ b/kernel/drivers/pci.c @@ -1,10 +1,10 @@ #include <comus/drivers/pci.h> #include <comus/asm.h> +#include <comus/limits.h> #include <lib.h> #define CONF_ADDR 0xCF8 #define CONF_DATA 0xCFC -#define TABLE_LEN 16 struct pci_table_entry { struct pci_device device; @@ -16,7 +16,7 @@ struct pci_table_entry { uint8_t revision; }; -static struct pci_table_entry pci_table[TABLE_LEN]; +static struct pci_table_entry pci_table[N_PCI_DEV]; static size_t pci_table_next = 0; uint32_t pci_rcfg_d(struct pci_device dev, uint8_t offset) @@ -43,8 +43,8 @@ static void print_device(struct pci_table_entry *entry) static struct pci_table_entry *load_device(struct pci_device dev) { - if (pci_table_next >= TABLE_LEN) - panic("Too many PCI devices: limit is %d", TABLE_LEN); + if (pci_table_next >= N_PCI_DEV) + panic("Too many PCI devices: limit is %d", N_PCI_DEV); struct pci_table_entry *entry = &pci_table[pci_table_next++]; entry->device = dev; uint32_t dword0 = pci_rcfg_d(dev, 0); diff --git a/kernel/include/comus/limits.h b/kernel/include/comus/limits.h index 2942b89..aedb49e 100644 --- a/kernel/include/comus/limits.h +++ b/kernel/include/comus/limits.h @@ -9,6 +9,9 @@ /// max number of processes #define N_PROCS 256 +/// max numer of pci devices +#define N_PCI_DEV 256 + /// length of terminal buffer #define TERM_MAX_WIDTH 480 #define TERM_MAX_HEIGHT 270 |