cmd64x: remove /proc/ide/cmd64x

This belongs to user-space (and only if really needed).

   text    data     bss     dec     hex filename
   3874     180      28    4082     ff2 drivers/ide/pci/cmd64x.o.before
   2231     180       0    2411     96b drivers/ide/pci/cmd64x.o.after

Additionaly to being bloat the code reported incorrect UDMA modes for
the reserved values of UDIDETCR0/1 registers.

Also while at it remove unused CNTRL_DIS_RA0/1 defines.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c
index 0b1e947..cd4eb9d 100644 (file)
--- a/drivers/ide/pci/cmd64x.c
+++ b/drivers/ide/pci/cmd64x.c
@@ -1,5 +1,5 @@
 /*
- * linux/drivers/ide/pci/cmd64x.c              Version 1.52    Dec 24, 2007
+ * linux/drivers/ide/pci/cmd64x.c              Version 1.53    Dec 24, 2007
  *
  * cmd64x.c: Enable interrupts at initialization time on Ultra/PCI machines.
  *           Due to massive hardware bugs, UltraDMA is only supported
@@ -22,8 +22,6 @@
 
 #include <asm/io.h>
 
-#define DISPLAY_CMD64X_TIMINGS
-
 #define CMD_DEBUG 0
 
 #if CMD_DEBUG
@@ -37,11 +35,6 @@
  */
 #define CFR            0x50
 #define   CFR_INTR_CH0         0x04
-#define CNTRL          0x51
-#define   CNTRL_ENA_1ST        0x04
-#define   CNTRL_ENA_2ND        0x08
-#define   CNTRL_DIS_RA0        0x40
-#define   CNTRL_DIS_RA1        0x80
 
 #define        CMDTIM          0x52
 #define        ARTTIM0         0x53
@@ -60,108 +53,13 @@
 #define MRDMODE                0x71
 #define   MRDMODE_INTR_CH0     0x04
 #define   MRDMODE_INTR_CH1     0x08
-#define   MRDMODE_BLK_CH0      0x10
-#define   MRDMODE_BLK_CH1      0x20
-#define BMIDESR0       0x72
 #define UDIDETCR0      0x73
 #define DTPR0          0x74
 #define BMIDECR1       0x78
 #define BMIDECSR       0x79
-#define BMIDESR1       0x7A
 #define UDIDETCR1      0x7B
 #define DTPR1          0x7C
 
-#if defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_IDE_PROC_FS)
-#include <linux/stat.h>
-#include <linux/proc_fs.h>
-
-static u8 cmd64x_proc = 0;
-
-#define CMD_MAX_DEVS           5
-
-static struct pci_dev *cmd_devs[CMD_MAX_DEVS];
-static int n_cmd_devs;
-
-static char * print_cmd64x_get_info (char *buf, struct pci_dev *dev, int index)
-{
-       char *p = buf;
-       u8 reg72 = 0, reg73 = 0;                        /* primary */
-       u8 reg7a = 0, reg7b = 0;                        /* secondary */
-       u8 reg50 = 1, reg51 = 1, reg57 = 0, reg71 = 0;  /* extra */
-
-       p += sprintf(p, "\nController: %d\n", index);
-       p += sprintf(p, "PCI-%x Chipset.\n", dev->device);
-
-       (void) pci_read_config_byte(dev, CFR,       &reg50);
-       (void) pci_read_config_byte(dev, CNTRL,     &reg51);
-       (void) pci_read_config_byte(dev, ARTTIM23,  &reg57);
-       (void) pci_read_config_byte(dev, MRDMODE,   &reg71);
-       (void) pci_read_config_byte(dev, BMIDESR0,  &reg72);
-       (void) pci_read_config_byte(dev, UDIDETCR0, &reg73);
-       (void) pci_read_config_byte(dev, BMIDESR1,  &reg7a);
-       (void) pci_read_config_byte(dev, UDIDETCR1, &reg7b);
-
-       /* PCI0643/6 originally didn't have the primary channel enable bit */
-       if ((dev->device == PCI_DEVICE_ID_CMD_643) ||
-           (dev->device == PCI_DEVICE_ID_CMD_646 && dev->revision < 3))
-               reg51 |= CNTRL_ENA_1ST;
-
-       p += sprintf(p, "---------------- Primary Channel "
-                       "---------------- Secondary Channel ------------\n");
-       p += sprintf(p, "                 %s                         %s\n",
-                (reg51 & CNTRL_ENA_1ST) ? "enabled " : "disabled",
-                (reg51 & CNTRL_ENA_2ND) ? "enabled " : "disabled");
-       p += sprintf(p, "---------------- drive0 --------- drive1 "
-                       "-------- drive0 --------- drive1 ------\n");
-       p += sprintf(p, "DMA enabled:     %s              %s"
-                       "             %s              %s\n",
-               (reg72 & 0x20) ? "yes" : "no ", (reg72 & 0x40) ? "yes" : "no ",
-               (reg7a & 0x20) ? "yes" : "no ", (reg7a & 0x40) ? "yes" : "no ");
-       p += sprintf(p, "UltraDMA mode:   %s (%c)          %s (%c)",
-               ( reg73 & 0x01) ? " on" : "off",
-               ((reg73 & 0x30) == 0x30) ? ((reg73 & 0x04) ? '3' : '0') :
-               ((reg73 & 0x30) == 0x20) ? ((reg73 & 0x04) ? '3' : '1') :
-               ((reg73 & 0x30) == 0x10) ? ((reg73 & 0x04) ? '4' : '2') :
-               ((reg73 & 0x30) == 0x00) ? ((reg73 & 0x04) ? '5' : '2') : '?',
-               ( reg73 & 0x02) ? " on" : "off",
-               ((reg73 & 0xC0) == 0xC0) ? ((reg73 & 0x08) ? '3' : '0') :
-               ((reg73 & 0xC0) == 0x80) ? ((reg73 & 0x08) ? '3' : '1') :
-               ((reg73 & 0xC0) == 0x40) ? ((reg73 & 0x08) ? '4' : '2') :
-               ((reg73 & 0xC0) == 0x00) ? ((reg73 & 0x08) ? '5' : '2') : '?');
-       p += sprintf(p, "         %s (%c)          %s (%c)\n",
-               ( reg7b & 0x01) ? " on" : "off",
-               ((reg7b & 0x30) == 0x30) ? ((reg7b & 0x04) ? '3' : '0') :
-               ((reg7b & 0x30) == 0x20) ? ((reg7b & 0x04) ? '3' : '1') :
-               ((reg7b & 0x30) == 0x10) ? ((reg7b & 0x04) ? '4' : '2') :
-               ((reg7b & 0x30) == 0x00) ? ((reg7b & 0x04) ? '5' : '2') : '?',
-               ( reg7b & 0x02) ? " on" : "off",
-               ((reg7b & 0xC0) == 0xC0) ? ((reg7b & 0x08) ? '3' : '0') :
-               ((reg7b & 0xC0) == 0x80) ? ((reg7b & 0x08) ? '3' : '1') :
-               ((reg7b & 0xC0) == 0x40) ? ((reg7b & 0x08) ? '4' : '2') :
-               ((reg7b & 0xC0) == 0x00) ? ((reg7b & 0x08) ? '5' : '2') : '?');
-       p += sprintf(p, "Interrupt:       %s, %s                 %s, %s\n",
-               (reg71 & MRDMODE_BLK_CH0  ) ? "blocked" : "enabled",
-               (reg50 & CFR_INTR_CH0     ) ? "pending" : "clear  ",
-               (reg71 & MRDMODE_BLK_CH1  ) ? "blocked" : "enabled",
-               (reg57 & ARTTIM23_INTR_CH1) ? "pending" : "clear  ");
-
-       return (char *)p;
-}
-
-static int cmd64x_get_info (char *buffer, char **addr, off_t offset, int count)
-{
-       char *p = buffer;
-       int i;
-
-       for (i = 0; i < n_cmd_devs; i++) {
-               struct pci_dev *dev     = cmd_devs[i];
-               p = print_cmd64x_get_info(p, dev, i);
-       }
-       return p-buffer;        /* => must be less than 4k! */
-}
-
-#endif /* defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_IDE_PROC_FS) */
-
 static u8 quantize_timing(int timing, int quant)
 {
        return (timing + quant - 1) / quant;
@@ -472,16 +370,6 @@ static unsigned int __devinit init_chipset_cmd64x(struct pci_dev *dev, const cha
        mrdmode &= ~0x30;
        (void) pci_write_config_byte(dev, MRDMODE, (mrdmode | 0x02));
 
-#if defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_IDE_PROC_FS)
-
-       cmd_devs[n_cmd_devs++] = dev;
-
-       if (!cmd64x_proc) {
-               cmd64x_proc = 1;
-               ide_pci_create_host_proc("cmd64x", cmd64x_get_info);
-       }
-#endif /* DISPLAY_CMD64X_TIMINGS && CONFIG_IDE_PROC_FS */
-
        return 0;
 }