trm290: cannot call ide_setup_dma()

[linux-2.6-omap-h63xx.git] / drivers / ide / pci / trm290.c

diff --git a/drivers/ide/pci/trm290.c b/drivers/ide/pci/trm290.c
index 0895e753a35d34af4ba8b508fe3422fa82b4c461..7b0338890699dc20063d5b765ede55278190a1bc 100644 (file)
--- a/drivers/ide/pci/trm290.c
+++ b/drivers/ide/pci/trm290.c
@@ -1,7 +1,8 @@
 /*
- *  linux/drivers/ide/pci/trm290.c             Version 1.02    Mar. 18, 2000
+ *  linux/drivers/ide/pci/trm290.c             Version 1.05    Dec. 30, 2007
  *
  *  Copyright (c) 1997-1998  Mark Lord
+ *  Copyright (c) 2007       MontaVista Software, Inc. <source@mvista.com>
  *  May be copied or modified under the terms of the GNU General Public License
  *
  *  June 22, 2004 - get rid of check_region
@@ -177,7 +178,7 @@ static void trm290_selectproc (ide_drive_t *drive)
        trm290_prepare_drive(drive, drive->using_dma);
 }
 
-static void trm290_ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
+static void trm290_dma_exec_cmd(ide_drive_t *drive, u8 command)
 {
        BUG_ON(HWGROUP(drive)->handler != NULL);        /* paranoia check */
        ide_set_handler(drive, &ide_dma_intr, WAIT_CMD, NULL);
@@ -185,7 +186,7 @@ static void trm290_ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
        outb(command, IDE_COMMAND_REG);
 }
 
-static int trm290_ide_dma_setup(ide_drive_t *drive)
+static int trm290_dma_setup(ide_drive_t *drive)
 {
        ide_hwif_t *hwif = drive->hwif;
        struct request *rq = hwif->hwgroup->rq;
@@ -208,55 +209,73 @@ static int trm290_ide_dma_setup(ide_drive_t *drive)
        }
        /* select DMA xfer */
        trm290_prepare_drive(drive, 1);
-       outl(hwif->dmatable_dma | rw, hwif->dma_command);
+       outl(hwif->dmatable_dma | rw, hwif->dma_base);
        drive->waiting_for_dma = 1;
        /* start DMA */
-       outw((count * 2) - 1, hwif->dma_status);
+       outw(count * 2 - 1, hwif->dma_base + 2);
        return 0;
 }
 
-static void trm290_ide_dma_start(ide_drive_t *drive)
+static void trm290_dma_start(ide_drive_t *drive)
 {
 }
 
 static int trm290_ide_dma_end (ide_drive_t *drive)
 {
-       ide_hwif_t *hwif = HWIF(drive);
-       u16 status = 0;
+       u16 status;
 
        drive->waiting_for_dma = 0;
        /* purge DMA mappings */
        ide_destroy_dmatable(drive);
-       status = inw(hwif->dma_status);
-       return (status != 0x00ff);
+       status = inw(HWIF(drive)->dma_base + 2);
+       return status != 0x00ff;
 }
 
 static int trm290_ide_dma_test_irq (ide_drive_t *drive)
 {
-       ide_hwif_t *hwif = HWIF(drive);
-       u16 status = 0;
+       u16 status;
+
+       status = inw(HWIF(drive)->dma_base + 2);
+       return status == 0x00ff;
+}
 
-       status = inw(hwif->dma_status);
-       return (status == 0x00ff);
+static void trm290_dma_host_set(ide_drive_t *drive, int on)
+{
 }
 
 static void __devinit init_hwif_trm290(ide_hwif_t *hwif)
 {
-       unsigned int cfgbase = 0;
+       struct pci_dev *dev     = hwif->pci_dev;
+       unsigned int  cfg_base  = pci_resource_start(dev, 4);
        unsigned long flags;
        u8 reg = 0;
-       struct pci_dev *dev = hwif->pci_dev;
-
-       cfgbase = pci_resource_start(dev, 4);
-       if ((dev->class & 5) && cfgbase) {
-               hwif->config_data = cfgbase;
-               printk(KERN_INFO "TRM290: chip config base at 0x%04lx\n",
-                       hwif->config_data);
-       } else {
-               hwif->config_data = 0x3df0;
-               printk(KERN_INFO "TRM290: using default config base at 0x%04lx\n",
-                       hwif->config_data);
+
+       if ((dev->class & 5) && cfg_base)
+               printk(KERN_INFO "TRM290: chip");
+       else {
+               cfg_base = 0x3df0;
+               printk(KERN_INFO "TRM290: using default");
        }
+       printk(KERN_CONT " config base at 0x%04x\n", cfg_base);
+       hwif->config_data = cfg_base;
+       hwif->dma_base = (cfg_base + 4) ^ (hwif->channel ? 0x80 : 0);
+
+       printk(KERN_INFO "    %s: BM-DMA at 0x%04lx-0x%04lx",
+              hwif->name, hwif->dma_base, hwif->dma_base + 3);
+
+       if (!request_region(hwif->dma_base, 4, hwif->name)) {
+               printk(KERN_CONT " -- Error, ports in use.\n");
+               return;
+       }
+
+       hwif->dmatable_cpu = pci_alloc_consistent(dev, PRD_ENTRIES * PRD_BYTES,
+                                                 &hwif->dmatable_dma);
+       if (!hwif->dmatable_cpu) {
+               printk(KERN_CONT " -- Error, unable to allocate DMA table.\n");
+               release_region(hwif->dma_base, 4);
+               return;
+       }
+       printk(KERN_CONT "\n");
 
        local_irq_save(flags);
        /* put config reg into first byte of hwif->select_data */
@@ -271,20 +290,19 @@ static void __devinit init_hwif_trm290(ide_hwif_t *hwif)
        outb(reg, hwif->config_data + 3);
        local_irq_restore(flags);
 
-       if ((reg & 0x10))
+       if (reg & 0x10)
                /* legacy mode */
                hwif->irq = hwif->channel ? 15 : 14;
        else if (!hwif->irq && hwif->mate && hwif->mate->irq)
                /* sharing IRQ with mate */
                hwif->irq = hwif->mate->irq;
 
-       ide_setup_dma(hwif, (hwif->config_data + 4) ^ (hwif->channel ? 0x0080 : 0x0000), 3);
-
-       hwif->dma_setup = &trm290_ide_dma_setup;
-       hwif->dma_exec_cmd = &trm290_ide_dma_exec_cmd;
-       hwif->dma_start = &trm290_ide_dma_start;
-       hwif->ide_dma_end = &trm290_ide_dma_end;
-       hwif->ide_dma_test_irq = &trm290_ide_dma_test_irq;
+       hwif->dma_host_set      = &trm290_dma_host_set;
+       hwif->dma_setup         = &trm290_dma_setup;
+       hwif->dma_exec_cmd      = &trm290_dma_exec_cmd;
+       hwif->dma_start         = &trm290_dma_start;
+       hwif->ide_dma_end       = &trm290_ide_dma_end;
+       hwif->ide_dma_test_irq  = &trm290_ide_dma_test_irq;
 
        hwif->selectproc = &trm290_selectproc;
 #if 1