#include <linux/spinlock.h>
#include <linux/pci.h>
#include <linux/mod_devicetable.h>
+#include <linux/dma-mapping.h>
#include <linux/ssb/ssb_regs.h>
const struct ssb_bus_ops *ops;
struct device *dev;
+
struct ssb_bus *bus;
struct ssb_device_id id;
extern void ssb_bus_unregister(struct ssb_bus *bus);
+/* Set a fallback SPROM.
+ * See kdoc at the function definition for complete documentation. */
+extern int ssb_arch_set_fallback_sprom(const struct ssb_sprom *sprom);
+
/* Suspend a SSB bus.
* Call this from the parent bus suspend routine. */
extern int ssb_bus_suspend(struct ssb_bus *bus);
#endif /* CONFIG_SSB_BLOCKIO */
+/* The SSB DMA API. Use this API for any DMA operation on the device.
+ * This API basically is a wrapper that calls the correct DMA API for
+ * the host device type the SSB device is attached to. */
+
/* Translation (routing) bits that need to be ORed to DMA
* addresses before they are given to a device. */
extern u32 ssb_dma_translation(struct ssb_device *dev);
#define SSB_DMA_TRANSLATION_MASK 0xC0000000
#define SSB_DMA_TRANSLATION_SHIFT 30
-extern int ssb_dma_set_mask(struct ssb_device *ssb_dev, u64 mask);
+extern int ssb_dma_set_mask(struct ssb_device *dev, u64 mask);
+
+extern void * ssb_dma_alloc_consistent(struct ssb_device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp_flags);
+extern void ssb_dma_free_consistent(struct ssb_device *dev, size_t size,
+ void *vaddr, dma_addr_t dma_handle,
+ gfp_t gfp_flags);
+
+static inline void __cold __ssb_dma_not_implemented(struct ssb_device *dev)
+{
+#ifdef CONFIG_SSB_DEBUG
+ printk(KERN_ERR "SSB: BUG! Calling DMA API for "
+ "unsupported bustype %d\n", dev->bus->bustype);
+#endif /* DEBUG */
+}
+
+static inline int ssb_dma_mapping_error(struct ssb_device *dev, dma_addr_t addr)
+{
+ switch (dev->bus->bustype) {
+ case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
+ return pci_dma_mapping_error(dev->bus->host_pci, addr);
+#endif
+ break;
+ case SSB_BUSTYPE_SSB:
+ return dma_mapping_error(dev->dev, addr);
+ default:
+ break;
+ }
+ __ssb_dma_not_implemented(dev);
+ return -ENOSYS;
+}
+
+static inline dma_addr_t ssb_dma_map_single(struct ssb_device *dev, void *p,
+ size_t size, enum dma_data_direction dir)
+{
+ switch (dev->bus->bustype) {
+ case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
+ return pci_map_single(dev->bus->host_pci, p, size, dir);
+#endif
+ break;
+ case SSB_BUSTYPE_SSB:
+ return dma_map_single(dev->dev, p, size, dir);
+ default:
+ break;
+ }
+ __ssb_dma_not_implemented(dev);
+ return 0;
+}
+
+static inline void ssb_dma_unmap_single(struct ssb_device *dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction dir)
+{
+ switch (dev->bus->bustype) {
+ case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
+ pci_unmap_single(dev->bus->host_pci, dma_addr, size, dir);
+ return;
+#endif
+ break;
+ case SSB_BUSTYPE_SSB:
+ dma_unmap_single(dev->dev, dma_addr, size, dir);
+ return;
+ default:
+ break;
+ }
+ __ssb_dma_not_implemented(dev);
+}
+
+static inline void ssb_dma_sync_single_for_cpu(struct ssb_device *dev,
+ dma_addr_t dma_addr,
+ size_t size,
+ enum dma_data_direction dir)
+{
+ switch (dev->bus->bustype) {
+ case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
+ pci_dma_sync_single_for_cpu(dev->bus->host_pci, dma_addr,
+ size, dir);
+ return;
+#endif
+ break;
+ case SSB_BUSTYPE_SSB:
+ dma_sync_single_for_cpu(dev->dev, dma_addr, size, dir);
+ return;
+ default:
+ break;
+ }
+ __ssb_dma_not_implemented(dev);
+}
+
+static inline void ssb_dma_sync_single_for_device(struct ssb_device *dev,
+ dma_addr_t dma_addr,
+ size_t size,
+ enum dma_data_direction dir)
+{
+ switch (dev->bus->bustype) {
+ case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
+ pci_dma_sync_single_for_device(dev->bus->host_pci, dma_addr,
+ size, dir);
+ return;
+#endif
+ break;
+ case SSB_BUSTYPE_SSB:
+ dma_sync_single_for_device(dev->dev, dma_addr, size, dir);
+ return;
+ default:
+ break;
+ }
+ __ssb_dma_not_implemented(dev);
+}
+
+static inline void ssb_dma_sync_single_range_for_cpu(struct ssb_device *dev,
+ dma_addr_t dma_addr,
+ unsigned long offset,
+ size_t size,
+ enum dma_data_direction dir)
+{
+ switch (dev->bus->bustype) {
+ case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
+ /* Just sync everything. That's all the PCI API can do. */
+ pci_dma_sync_single_for_cpu(dev->bus->host_pci, dma_addr,
+ offset + size, dir);
+ return;
+#endif
+ break;
+ case SSB_BUSTYPE_SSB:
+ dma_sync_single_range_for_cpu(dev->dev, dma_addr, offset,
+ size, dir);
+ return;
+ default:
+ break;
+ }
+ __ssb_dma_not_implemented(dev);
+}
+
+static inline void ssb_dma_sync_single_range_for_device(struct ssb_device *dev,
+ dma_addr_t dma_addr,
+ unsigned long offset,
+ size_t size,
+ enum dma_data_direction dir)
+{
+ switch (dev->bus->bustype) {
+ case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
+ /* Just sync everything. That's all the PCI API can do. */
+ pci_dma_sync_single_for_device(dev->bus->host_pci, dma_addr,
+ offset + size, dir);
+ return;
+#endif
+ break;
+ case SSB_BUSTYPE_SSB:
+ dma_sync_single_range_for_device(dev->dev, dma_addr, offset,
+ size, dir);
+ return;
+ default:
+ break;
+ }
+ __ssb_dma_not_implemented(dev);
+}
#ifdef CONFIG_SSB_PCIHOST
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