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/* 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 */
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