Changeset 645d3832 in mainline for uspace/drv/block/pci-ide/pci-ide.h

Timestamp:

2024-06-10T17:29:13Z (4 weeks ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

master

Children:

a38d504

Parents:

69c376b5

git-author:

Jiri Svoboda <jiri@…> (2024-06-10 17:24:58)

git-committer:

Jiri Svoboda <jiri@…> (2024-06-10 17:29:13)

Message:

Add DMA support to PCI-IDE / libata (register commands)

File:

• uspace/drv/block/pci-ide/pci-ide.h (modified) (4 diffs)

uspace/drv/block/pci-ide/pci-ide.h

@@ -42 +42 @@
 #include <stdbool.h>
 #include <stdint.h>
+#include "pci-ide_hw.h"
 
 #define NAME "pci-ide"
@@ -79 +80 @@
         uint8_t irq_status;
 
+        /** Physical region descriptor table */
+        pci_ide_prd_t *prdt;
+        /** Physical region descriptor table physical address */
+        uintptr_t prdt_pa;
+        /** DMA buffer */
+        void *dma_buf;
+        /** DMA buffer physical address */
+        uintptr_t dma_buf_pa;
+        /** DMA buffer size */
+        size_t dma_buf_size;
+        /** Current DMA transfer direction */
+        ata_dma_dir_t cur_dir;
+        /** Current data buffer */
+        void *cur_buf;
+        /** Current data buffer size */
+        size_t cur_buf_size;
+
         /** Libata ATA channel */
         ata_channel_t *channel;
@@ -92 +110 @@
         ddf_dev_t *dev;
 
+        /** I/O base address of bus master IDE registers */
+        uintptr_t bmregs_physical;
+        /** Bus master IDE registers */
+        pci_ide_regs_t *bmregs;
         /** Primary and secondary channel */
         pci_ide_channel_t channel[2];
@@ -102 +124 @@
 } pci_ide_fun_t;
 
+extern errno_t pci_ide_ctrl_init(pci_ide_ctrl_t *, pci_ide_hwres_t *);
+extern errno_t pci_ide_ctrl_fini(pci_ide_ctrl_t *);
 extern errno_t pci_ide_channel_init(pci_ide_ctrl_t *, pci_ide_channel_t *,
     unsigned, pci_ide_hwres_t *);