aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/staging/kpc2000/kpc2000/pcie.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/staging/kpc2000/kpc2000/pcie.h')
-rw-r--r--drivers/staging/kpc2000/kpc2000/pcie.h112
1 files changed, 112 insertions, 0 deletions
diff --git a/drivers/staging/kpc2000/kpc2000/pcie.h b/drivers/staging/kpc2000/kpc2000/pcie.h
new file mode 100644
index 000000000000..893aebfd1449
--- /dev/null
+++ b/drivers/staging/kpc2000/kpc2000/pcie.h
@@ -0,0 +1,112 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+#ifndef KP2000_PCIE_H
+#define KP2000_PCIE_H
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/pci.h>
+#include "../kpc.h"
+#include "dma_common_defs.h"
+
+
+/* System Register Map (BAR 1, Start Addr 0)
+ *
+ * BAR Size:
+ * 1048576 (0x100000) bytes = 131072 (0x20000) registers = 256 pages (4K)
+ *
+ * 6 5 4 3 2 1 0
+ * 3210987654321098765432109876543210987654321098765432109876543210
+ * 0 <--------------------------- MAGIC ---------------------------->
+ * 1 <----------- Card ID ---------><----------- Revision ---------->
+ * 2 <--------- Date Stamp --------><--------- Time Stamp ---------->
+ * 3 <-------- Core Tbl Len -------><-------- Core Tbl Offset ------>
+ * 4 <---------------------------- SSID ---------------------------->
+ * 5 < HWID >
+ * 6 <------------------------- FPGA DDNA -------------------------->
+ * 7 <------------------------ CPLD Config ------------------------->
+ * 8 <----------------------- IRQ Mask Flags ----------------------->
+ * 9 <---------------------- IRQ Active Flags ---------------------->
+ */
+
+#define REG_WIDTH 8
+#define REG_MAGIC_NUMBER (0 * REG_WIDTH)
+#define REG_CARD_ID_AND_BUILD (1 * REG_WIDTH)
+#define REG_DATE_AND_TIME_STAMPS (2 * REG_WIDTH)
+#define REG_CORE_TABLE_OFFSET (3 * REG_WIDTH)
+#define REG_FPGA_SSID (4 * REG_WIDTH)
+#define REG_FPGA_HW_ID (5 * REG_WIDTH)
+#define REG_FPGA_DDNA (6 * REG_WIDTH)
+#define REG_CPLD_CONFIG (7 * REG_WIDTH)
+#define REG_INTERRUPT_MASK (8 * REG_WIDTH)
+#define REG_INTERRUPT_ACTIVE (9 * REG_WIDTH)
+#define REG_PCIE_ERROR_COUNT (10 * REG_WIDTH)
+
+#define KP2000_MAGIC_VALUE 0x196C61482231894D
+
+#define PCI_VENDOR_ID_DAKTRONICS 0x1c33
+#define PCI_DEVICE_ID_DAKTRONICS 0x6021
+
+#define DMA_BAR 0
+#define REG_BAR 1
+
+struct kp2000_device {
+ struct pci_dev *pdev;
+ struct miscdevice miscdev;
+ char name[16];
+
+ unsigned int card_num;
+ struct mutex sem;
+
+ void __iomem *sysinfo_regs_base;
+ void __iomem *regs_bar_base;
+ struct resource regs_base_resource;
+ void __iomem *dma_bar_base;
+ void __iomem *dma_common_regs;
+ struct resource dma_base_resource;
+
+ // "System Registers"
+ u32 card_id;
+ u32 build_version;
+ u32 build_datestamp;
+ u32 build_timestamp;
+ u32 core_table_offset;
+ u32 core_table_length;
+ u8 core_table_rev;
+ u8 hardware_revision;
+ u64 ssid;
+ u64 ddna;
+
+ // IRQ stuff
+ unsigned int irq;
+
+ struct list_head uio_devices_list;
+};
+
+extern struct class *kpc_uio_class;
+extern struct attribute *kpc_uio_class_attrs[];
+
+int kp2000_pcie_probe(struct pci_dev *dev, const struct pci_device_id *id);
+void kp2000_pcie_remove(struct pci_dev *pdev);
+int kp2000_probe_cores(struct kp2000_device *pcard);
+void kp2000_remove_cores(struct kp2000_device *pcard);
+
+extern struct file_operations kp2000_fops;
+
+
+// Define this quick little macro because the expression is used frequently
+#define PCARD_TO_DEV(pcard) (&(pcard->pdev->dev))
+
+static inline void
+lock_card(struct kp2000_device *pcard)
+{
+ BUG_ON(pcard == NULL);
+ mutex_lock(&pcard->sem);
+}
+static inline void
+unlock_card(struct kp2000_device *pcard)
+{
+ BUG_ON(pcard == NULL);
+ mutex_unlock(&pcard->sem);
+}
+
+
+#endif /* KP2000_PCIE_H */