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[linux-2.6.git] / drivers / ide / pci / cs5530.c

diff --git a/drivers/ide/pci/cs5530.c b/drivers/ide/pci/cs5530.c
index 0457a8e..b63e2d6 100644 (file)
--- a/drivers/ide/pci/cs5530.c
+++ b/drivers/ide/pci/cs5530.c
@@ -31,6 +31,56 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 
+#define DISPLAY_CS5530_TIMINGS
+
+#if defined(DISPLAY_CS5530_TIMINGS) && defined(CONFIG_PROC_FS)
+#include <linux/stat.h>
+#include <linux/proc_fs.h>
+
+static u8 cs5530_proc = 0;
+
+static struct pci_dev *bmide_dev;
+
+static int cs5530_get_info (char *buffer, char **addr, off_t offset, int count)
+{
+       char *p = buffer;
+       unsigned long bibma = pci_resource_start(bmide_dev, 4);
+       u8  c0 = 0, c1 = 0;
+
+       /*
+        * at that point bibma+0x2 et bibma+0xa are byte registers
+        * to investigate:
+        */
+
+       c0 = inb_p((u16)bibma + 0x02);
+       c1 = inb_p((u16)bibma + 0x0a);
+
+       p += sprintf(p, "\n                                "
+                       "Cyrix 5530 Chipset.\n");
+       p += sprintf(p, "--------------- Primary Channel "
+                       "---------------- Secondary Channel "
+                       "-------------\n");
+       p += sprintf(p, "                %sabled "
+                       "                        %sabled\n",
+                       (c0&0x80) ? "dis" : " en",
+                       (c1&0x80) ? "dis" : " en");
+       p += sprintf(p, "--------------- drive0 --------- drive1 "
+                       "-------- drive0 ---------- drive1 ------\n");
+       p += sprintf(p, "DMA enabled:    %s              %s "
+                       "            %s               %s\n",
+                       (c0&0x20) ? "yes" : "no ",
+                       (c0&0x40) ? "yes" : "no ",
+                       (c1&0x20) ? "yes" : "no ",
+                       (c1&0x40) ? "yes" : "no " );
+
+       p += sprintf(p, "UDMA\n");
+       p += sprintf(p, "DMA\n");
+       p += sprintf(p, "PIO\n");
+
+       return p-buffer;
+}
+#endif /* DISPLAY_CS5530_TIMINGS && CONFIG_PROC_FS */
+
 /**
  *     cs5530_xfer_set_mode    -       set a new transfer mode at the drive
  *     @drive: drive to tune
@@ -222,6 +272,14 @@ static unsigned int __init init_chipset_cs5530 (struct pci_dev *dev, const char
        struct pci_dev *master_0 = NULL, *cs5530_0 = NULL;
        unsigned long flags;
 
+#if defined(DISPLAY_CS5530_TIMINGS) && defined(CONFIG_PROC_FS)
+       if (!cs5530_proc) {
+               cs5530_proc = 1;
+               bmide_dev = dev;
+               ide_pci_create_host_proc("cs5530", cs5530_get_info);
+       }
+#endif /* DISPLAY_CS5530_TIMINGS && CONFIG_PROC_FS */
+
        dev = NULL;
        while ((dev = pci_find_device(PCI_VENDOR_ID_CYRIX, PCI_ANY_ID, dev)) != NULL) {
                switch (dev->device) {
@@ -353,6 +411,7 @@ static ide_pci_device_t cs5530_chipset __devinitdata = {
        .channels       = 2,
        .autodma        = AUTODMA,
        .bootable       = ON_BOARD,
+       .flags          = IDEPCI_FLAG_FORCE_MASTER,
 };
 
 static int __devinit cs5530_init_one(struct pci_dev *dev, const struct pci_device_id *id)