bsps: Move PCI drivers to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

1 files changed, 0 insertions, 479 deletions

diff --git a/c/src/lib/libbsp/i386/shared/pci/pcibios.c b/c/src/lib/libbsp/i386/shared/pci/pcibios.c
deleted file mode 100644
index 173c89f3f8..0000000000
--- a/c/src/lib/libbsp/i386/shared/pci/pcibios.c
+++ /dev/null
@@ -1,479 +0,0 @@
-/**
- * @file
- *
- * PCI Support when Configuration Space is accessed via BIOS
- */
-
-/*
- * This software is Copyright (C) 1998 by T.sqware - all rights limited
- * It is provided in to the public domain "as is", can be freely modified
- * as far as this copyight notice is kept unchanged, but does not imply
- * an endorsement by T.sqware of the product in which it is included.
- */
-
-#include <rtems.h>
-#include <bsp.h>
-#include <rtems/pci.h>
-
-#include <string.h>  /* memcpy */
-
-/*
- * This is simpliest possible PCI BIOS, it assumes that addressing
- * is flat and that stack is big enough
- */
-static int pcibInitialized = 0;
-static unsigned int pcibEntry;
-
-/*
- * Array to pass data between c and __asm__ parts, at the time of
- * writing I am not yet that familiar with extended __asm__ feature
- * of gcc. This code is not on performance path, so we can care
- * relatively little about performance here
- */
-static volatile unsigned int pcibExchg[5];
-
-static int pcib_convert_err(int err);
-
-/** @brief
- * Make device signature from bus number, device numebr and function
- * number
- */
-#define PCIB_DEVSIG_MAKE(b,d,f) ((b<<8)|(d<<3)|(f))
-
-/** @brief
- * Extract valrous part from device signature
- */
-#define PCIB_DEVSIG_BUS(x) (((x)>>8) &0xff)
-#define PCIB_DEVSIG_DEV(x) (((x)>>3) & 0x1f)
-#define PCIB_DEVSIG_FUNC(x) ((x) & 0x7)
-
-/*
- * Forward reference. Initialized at bottom.
- */
-static const pci_config_access_functions pci_bios_indirect_functions;
-
-/* prototype before defining */
-const pci_config_access_functions *pci_bios_initialize(void);
-
-/*
- * Detects presense of PCI BIOS, returns pointer to accessor methods.
- */
-const pci_config_access_functions *pci_bios_initialize(void)
-{
-  unsigned char *ucp;
-  unsigned char  sum;
-  int            i;
-
-  pcibInitialized = 0;
-
-  /* First, we have to look for BIOS-32 */
-  for (ucp = (unsigned char *)0xE0000;
-       ucp < (unsigned char *)0xFFFFF;
-       ucp += 0x10) {
-    if (memcmp(ucp, "_32_", 4) != 0) {
-      continue;
-    }
-
-      /* Got signature, check length  */
-    if (*(ucp + 9) != 1) {
-      continue;
-    }
-
-    /* Verify checksum */
-    sum = 0;
-    for (i=0; i<16; i++) {
-      sum += *(ucp+i);
-    }
-
-    if (sum == 0) {
-      /* found */
-      break;
-    }
-  }
-
-  if (ucp >= (unsigned char *)0xFFFFF) {
-    /* BIOS-32 not found */
-    return NULL;
-  }
-
-  /* BIOS-32 found, let us find PCI BIOS */
-  ucp += 4;
-
-  pcibExchg[0] = *(unsigned int *)ucp;
-
-  __asm__ ("    pusha");                  /* Push all registers */
-  __asm__ ("    movl pcibExchg, %edi");   /* Move entry point to esi */
-  __asm__ ("    movl $0x49435024, %eax"); /* Move signature to eax */
-  __asm__ ("    xorl %ebx, %ebx");        /* Zero ebx */
-  __asm__ ("    pushl %cs");
-  __asm__ ("    call *%edi");             /* Call entry */
-  __asm__ ("    movl %eax, pcibExchg");
-  __asm__ ("    movl %ebx, pcibExchg+4");
-  __asm__ ("    movl %ecx, pcibExchg+8");
-  __asm__ ("    movl %edx, pcibExchg+12");
-  __asm__ ("    popa");
-
-  if ((pcibExchg[0] & 0xff) != 0) {
-    /* Not found */
-    return NULL;
-  }
-
-  /* Found PCI entry point */
-  pcibEntry = pcibExchg[1] + pcibExchg[3];
-
-  /* Let us check whether PCI bios is present */
-  pcibExchg[0] = pcibEntry;
-
-  __asm__ ("    pusha");
-  __asm__ ("    movl pcibExchg, %edi");
-  __asm__ ("    movb $0xb1, %ah");
-  __asm__ ("    movb $0x01, %al");
-  __asm__ ("    pushl %cs");
-  __asm__ ("    call *%edi");
-  __asm__ ("    movl %eax, pcibExchg");
-  __asm__ ("    movl %ebx, pcibExchg+4");
-  __asm__ ("    movl %ecx, pcibExchg+8");
-  __asm__ ("    movl %edx, pcibExchg+12");
-  __asm__ ("    popa");
-
-  if ((pcibExchg[0] & 0xff00) != 0) {
-    /* Not found */
-    return NULL;
-  }
-
-  if (pcibExchg[3] != 0x20494350) {
-    /* Signature does not match */
-    return NULL;
-  }
-
-  /* Success */
-  pcibInitialized = 1;
-
-  return &pci_bios_indirect_functions;
-}
-
-/*
- * Read byte from config space
- */
-static int
-pcib_conf_read8(int sig, int off, uint8_t *data)
-{
-  if (!pcibInitialized) {
-    return PCIB_ERR_UNINITIALIZED;
-  }
-
-  pcibExchg[0] = pcibEntry;
-  pcibExchg[1] = sig;
-  pcibExchg[2] = off;
-
-  __asm__ ("    pusha");
-  __asm__ ("    movl pcibExchg, %esi");
-  __asm__ ("    movb $0xb1, %ah");
-  __asm__ ("    movb $0x08, %al");
-  __asm__ ("    movl pcibExchg+4, %ebx");
-  __asm__ ("    movl pcibExchg+8, %edi");
-  __asm__ ("    pushl %cs");
-  __asm__ ("    call *%esi");
-  __asm__ ("    movl %eax, pcibExchg");
-  __asm__ ("    movl %ecx, pcibExchg+4");
-  __asm__ ("    popa");
-
-  if ((pcibExchg[0] & 0xff00) != 0) {
-    return pcib_convert_err((pcibExchg[0] >> 8) & 0xff);
-  }
-
-  *data = (unsigned char)pcibExchg[1] & 0xff;
-
-  return PCIB_ERR_SUCCESS;
-}
-
-
-/*
- * Read word from config space
- */
-static int
-pcib_conf_read16(int sig, int off, uint16_t *data)
-{
-  if (!pcibInitialized) {
-    return PCIB_ERR_UNINITIALIZED;
-  }
-
-  pcibExchg[0] = pcibEntry;
-  pcibExchg[1] = sig;
-  pcibExchg[2] = off;
-
-  __asm__ ("    pusha");
-  __asm__ ("    movl pcibExchg, %esi");
-  __asm__ ("    movb $0xb1, %ah");
-  __asm__ ("    movb $0x09, %al");
-  __asm__ ("    movl pcibExchg+4, %ebx");
-  __asm__ ("    movl pcibExchg+8, %edi");
-  __asm__ ("    pushl %cs");
-  __asm__ ("    call *%esi");
-  __asm__ ("    movl %eax, pcibExchg");
-  __asm__ ("    movl %ecx, pcibExchg+4");
-  __asm__ ("    popa");
-
-  if ((pcibExchg[0] & 0xff00) != 0) {
-    return pcib_convert_err((pcibExchg[0] >> 8) & 0xff);
-  }
-
-  *data = (unsigned short)pcibExchg[1] & 0xffff;
-
-  return PCIB_ERR_SUCCESS;
-}
-
-
-/*
- * Read dword from config space
- */
-static int
-pcib_conf_read32(int sig, int off, uint32_t *data)
-{
-  if (!pcibInitialized) {
-    return PCIB_ERR_UNINITIALIZED;
-  }
-
-  pcibExchg[0] = pcibEntry;
-  pcibExchg[1] = sig;
-  pcibExchg[2] = off;
-
-  __asm__ ("    pusha");
-  __asm__ ("    movl pcibExchg, %esi");
-  __asm__ ("    movb $0xb1, %ah");
-  __asm__ ("    movb $0x0a, %al");
-  __asm__ ("    movl pcibExchg+4, %ebx");
-  __asm__ ("    movl pcibExchg+8, %edi");
-  __asm__ ("    pushl %cs");
-  __asm__ ("    call *%esi");
-  __asm__ ("    movl %eax, pcibExchg");
-  __asm__ ("    movl %ecx, pcibExchg+4");
-  __asm__ ("    popa");
-
-  if ((pcibExchg[0] & 0xff00) != 0) {
-    return pcib_convert_err((pcibExchg[0] >> 8) & 0xff);
-  }
-
-  *data = (unsigned int)pcibExchg[1];
-
-  return PCIB_ERR_SUCCESS;
-}
-
-
-/*
- * Write byte into  config space
- */
-static int
-pcib_conf_write8(int sig, int off, uint8_t data)
-{
-  if (!pcibInitialized) {
-    return PCIB_ERR_UNINITIALIZED;
-  }
-
-  pcibExchg[0] = pcibEntry;
-  pcibExchg[1] = sig;
-  pcibExchg[2] = off;
-  pcibExchg[3] = data & 0xff;
-
-  __asm__ ("    pusha");
-  __asm__ ("    movl pcibExchg, %esi");
-  __asm__ ("    movb $0xb1, %ah");
-  __asm__ ("    movb $0x0b, %al");
-  __asm__ ("    movl pcibExchg+4, %ebx");
-  __asm__ ("    movl pcibExchg+8, %edi");
-  __asm__ ("    movl pcibExchg+12, %ecx");
-  __asm__ ("    pushl %cs");
-  __asm__ ("    call *%esi");
-  __asm__ ("    movl %eax, pcibExchg");
-  __asm__ ("    popa");
-
-  return pcib_convert_err((pcibExchg[0] >> 8) & 0xff);
-}
-
-/*
- * Write word into config space
- */
-static int
-pcib_conf_write16(int sig, int off, uint16_t data)
-{
-  if (!pcibInitialized) {
-    return PCIB_ERR_UNINITIALIZED;
-  }
-
-  pcibExchg[0] = pcibEntry;
-  pcibExchg[1] = sig;
-  pcibExchg[2] = off;
-  pcibExchg[3] = data & 0xffff;
-
-  __asm__ ("    pusha");
-  __asm__ ("    movl pcibExchg, %esi");
-  __asm__ ("    movb $0xb1, %ah");
-  __asm__ ("    movb $0x0c, %al");
-  __asm__ ("    movl pcibExchg+4, %ebx");
-  __asm__ ("    movl pcibExchg+8, %edi");
-  __asm__ ("    movl pcibExchg+12, %ecx");
-  __asm__ ("    pushl %cs");
-  __asm__ ("    call *%esi");
-  __asm__ ("    movl %eax, pcibExchg");
-  __asm__ ("    popa");
-
-  return pcib_convert_err((pcibExchg[0] >> 8) & 0xff);
-}
-
-
-
-/*
- * Write dword into config space
- */
-static int
-pcib_conf_write32(int sig, int off, uint32_t data)
-{
-  if (!pcibInitialized){
-      return PCIB_ERR_UNINITIALIZED;
-  }
-
-  pcibExchg[0] = pcibEntry;
-  pcibExchg[1] = sig;
-  pcibExchg[2] = off;
-  pcibExchg[3] = data;
-
-  __asm__ ("    pusha");
-  __asm__ ("    movl pcibExchg, %esi");
-  __asm__ ("    movb $0xb1, %ah");
-  __asm__ ("    movb $0x0d, %al");
-  __asm__ ("    movl pcibExchg+4, %ebx");
-  __asm__ ("    movl pcibExchg+8, %edi");
-  __asm__ ("    movl pcibExchg+12, %ecx");
-  __asm__ ("    pushl %cs");
-  __asm__ ("    call *%esi");
-  __asm__ ("    movl %eax, pcibExchg");
-  __asm__ ("    popa");
-
-  return pcib_convert_err((pcibExchg[0] >> 8) & 0xff);
-}
-
-
-static int
-pcib_convert_err(int err)
-{
-  switch(err & 0xff){
-    case 0:
-      return PCIB_ERR_SUCCESS;
-    case 0x81:
-      return PCIB_ERR_NOFUNC;
-    case 0x83:
-      return PCIB_ERR_BADVENDOR;
-    case 0x86:
-      return PCIB_ERR_DEVNOTFOUND;
-    case 0x87:
-      return PCIB_ERR_BADREG;
-    default:
-      break;
-  }
-  return PCIB_ERR_NOFUNC;
-}
-
-static int
-BSP_pci_read_config_byte(
-  unsigned char bus,
-  unsigned char slot,
-  unsigned char fun,
-  unsigned char offset,
-  unsigned char *val
-)
-{
-  int sig;
-
-  sig = PCIB_DEVSIG_MAKE(bus,slot,fun);
-  pcib_conf_read8(sig, offset, val);
-  return PCIBIOS_SUCCESSFUL;
-}
-
-static int
-BSP_pci_read_config_word(
-  unsigned char bus,
-  unsigned char slot,
-  unsigned char fun,
-  unsigned char offset,
-  unsigned short *val
-)
-{
-  int sig;
-
-  sig = PCIB_DEVSIG_MAKE(bus,slot,fun);
-  pcib_conf_read16(sig, offset, val);
-  return PCIBIOS_SUCCESSFUL;
-}
-
-static int
-BSP_pci_read_config_dword(
-  unsigned char bus,
-  unsigned char slot,
-  unsigned char fun,
-  unsigned char offset,
-  uint32_t     *val
-)
-{
-  int sig;
-
-  sig = PCIB_DEVSIG_MAKE(bus,slot,fun);
-  pcib_conf_read32(sig, offset, val);
-  return PCIBIOS_SUCCESSFUL;
-}
-
-static int
-BSP_pci_write_config_byte(
-  unsigned char bus,
-  unsigned char slot,
-  unsigned char fun,
-  unsigned char offset,
-  unsigned char val
-)
-{
-  int sig;
-
-  sig = PCIB_DEVSIG_MAKE(bus,slot,fun);
-  pcib_conf_write8(sig, offset, val);
-  return PCIBIOS_SUCCESSFUL;
-}
-
-static int
-BSP_pci_write_config_word(
-  unsigned char bus,
-  unsigned char slot,
-  unsigned char fun,
-  unsigned char offset,
-  unsigned short val
-)
-{
-  int sig;
-
-  sig = PCIB_DEVSIG_MAKE(bus,slot,fun);
-  pcib_conf_write16(sig, offset, val);
-  return PCIBIOS_SUCCESSFUL;
-}
-
-static int
-BSP_pci_write_config_dword(
-  unsigned char bus,
-  unsigned char slot,
-  unsigned char fun,
-  unsigned char offset,
-  uint32_t      val
-)
-{
-  int sig;
-
-  sig = PCIB_DEVSIG_MAKE(bus,slot,fun);
-  pcib_conf_write32(sig, offset, val);
-  return PCIBIOS_SUCCESSFUL;
-}
-
-static const pci_config_access_functions pci_bios_indirect_functions = {
-  BSP_pci_read_config_byte,
-  BSP_pci_read_config_word,
-  BSP_pci_read_config_dword,
-  BSP_pci_write_config_byte,
-  BSP_pci_write_config_word,
-  BSP_pci_write_config_dword
-};