Rework PCI ata and serial drivers, program according to the progif byte

kernel/pci/pci.h

@@ -3,6 +3,7 @@
 
 #include <stdint.h>
 #include <stddef.h>
+#include "kprintf.h"
 
 typedef union {
   uint32_t bits;
@@ -17,6 +18,23 @@ typedef union {
   };
 } PciDev;
 
+typedef struct {
+  uint16_t iobase;
+} PciBarIo;
+
+typedef struct {
+  uint64_t addr;
+} PciBarMem;
+
+typedef struct {
+  union {
+    PciBarIo io;
+    PciBarMem mem;
+  } x;
+  uint64_t size;
+  uint32_t flags;
+} PciBar;
+
 #define PCI_CFG_ADDR  0xCF8
 #define PCI_CFG_DATA  0xCFC
 
@@ -48,7 +66,10 @@ typedef union {
 #define PCI_DEV_PER_BUS   32
 #define PCI_FN_PER_DEV    32
 
-#define PCI_BAR_IOBASE(bar) ((bar) & 0xFFFFFFFC)
+#define PCI_BAR_IO        0x01
+#define PCI_BAR_MEM32     0x02
+#define PCI_BAR_MEM64     0x04
+#define PCI_BAR_PREFETCH  0x08
 
 uint32_t pci_read32(PciDev dev, uint32_t field);
 uint16_t pci_read16(PciDev dev, uint32_t field);
@@ -56,6 +77,8 @@ uint8_t pci_read8(PciDev dev, uint32_t field);
 void pci_write32(PciDev dev, uint32_t field, uint32_t v);
 void pci_write16(PciDev dev, uint32_t field, uint16_t v);
 void pci_write8(PciDev dev, uint32_t field, uint8_t v);
+void pci_readbar(PciDev dev, uint32_t bar, uint32_t *addr, uint32_t *mask);
+void pci_getbar(PciDev dev, PciBar *bar, uint32_t barid);
 uint32_t pci_devtype(PciDev dev);
 uint32_t pci_scndrybus(PciDev dev);
 uint32_t pci_isend(PciDev dev);
@@ -74,4 +97,13 @@ void pci_init(void);
 typedef void (*PciInitFn)(void);
 extern PciInitFn PCI_INIT_ARRAY[PCI_INIT_ARRAY_MAX];
 
+#define PCI_LOG_BAR(tag_, bar_, num) \
+  LOG("pci/"tag_, "BAR%d: type=%s flags=0x%08x,size=0x%016x,resource=0x%016x\n", \
+      num, \
+      (bar_).flags & PCI_BAR_IO ? "I/O" : ((bar_).flags & PCI_BAR_MEM32 ? "MEM32" : "MEM64"), \
+      (bar_).flags, \
+      (bar_).size, \
+      (bar_).flags & PCI_BAR_IO ? (bar_).x.io.iobase : (bar_).x.mem.addr \
+    );
+
 #endif // PCI_PCI_H_