#include "sdhci.h"
#define DRIVER_NAME "sdhci"
-#define DRIVER_VERSION "0.11"
+#define DRIVER_VERSION "0.12"
#define BUGMAIL "<sdhci-devel@list.drzeus.cx>"
#define DBG(f, x...) \
pr_debug(DRIVER_NAME " [%s()]: " f, __func__,## x)
+static unsigned int debug_nodma = 0;
+static unsigned int debug_forcedma = 0;
+static unsigned int debug_quirks = 0;
+
static const struct pci_device_id pci_ids[] __devinitdata = {
/* handle any SD host controller */
{PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI << 8), 0xFFFF00)},
return -ENODEV;
}
+ if ((pdev->class & 0x0000FF) == PCI_SDHCI_IFVENDOR) {
+ printk(KERN_ERR DRIVER_NAME ": Vendor specific interface. Aborting.\n");
+ return -ENODEV;
+ }
+
+ if ((pdev->class & 0x0000FF) > PCI_SDHCI_IFVENDOR) {
+ printk(KERN_ERR DRIVER_NAME ": Unknown interface. Aborting.\n");
+ return -ENODEV;
+ }
+
mmc = mmc_alloc_host(sizeof(struct sdhci_host), &pdev->dev);
if (!mmc)
return -ENOMEM;
caps = readl(host->ioaddr + SDHCI_CAPABILITIES);
- if ((caps & SDHCI_CAN_DO_DMA) && ((pdev->class & 0x0000FF) == 0x01))
+ if (debug_nodma)
+ DBG("DMA forced off\n");
+ else if (debug_forcedma) {
+ DBG("DMA forced on\n");
+ host->flags |= SDHCI_USE_DMA;
+ } else if ((pdev->class & 0x0000FF) != PCI_SDHCI_IFDMA)
+ DBG("Controller doesn't have DMA interface\n");
+ else if (!(caps & SDHCI_CAN_DO_DMA))
+ DBG("Controller doesn't have DMA capability\n");
+ else
host->flags |= SDHCI_USE_DMA;
if (host->flags & SDHCI_USE_DMA) {
}
chip->pdev = pdev;
+ chip->quirks = ent->driver_data;
+
+ if (debug_quirks)
+ chip->quirks = debug_quirks;
chip->num_slots = slots;
pci_set_drvdata(pdev, chip);
module_init(sdhci_drv_init);
module_exit(sdhci_drv_exit);
+module_param(debug_nodma, uint, 0444);
+module_param(debug_forcedma, uint, 0444);
+module_param(debug_quirks, uint, 0444);
+
MODULE_AUTHOR("Pierre Ossman <drzeus@drzeus.cx>");
MODULE_DESCRIPTION("Secure Digital Host Controller Interface driver");
MODULE_VERSION(DRIVER_VERSION);
MODULE_LICENSE("GPL");
+
+MODULE_PARM_DESC(debug_nodma, "Forcefully disable DMA transfers. (default 0)");
+MODULE_PARM_DESC(debug_forcedma, "Forcefully enable DMA transfers. (default 0)");
+MODULE_PARM_DESC(debug_quirks, "Force certain quirks.");