mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-15 15:46:52 +07:00
79d06d4dff
With VDR streaming HDTV into network, generating an interrupt once per 16kb, implemented in this patch, seems to support more robust throughput with HDTV. Fix leaking almost 64kb data from the previous TS after changing the TS. One effect of the old version was, that the DMA transfer and driver's DMA buffer access might happen at the same time - a race condition. Signed-off-by: Marko M. Ristola <marko.ristola@kolumbus.fi> Reviewed-by: Manu Abraham <manu@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
180 lines
4.3 KiB
C
180 lines
4.3 KiB
C
/*
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Mantis PCI bridge driver
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Copyright (C) Manu Abraham (abraham.manu@gmail.com)
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __MANTIS_COMMON_H
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#define __MANTIS_COMMON_H
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#include <linux/interrupt.h>
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#include <linux/mutex.h>
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#include <linux/workqueue.h>
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#include "mantis_uart.h"
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#include "mantis_link.h"
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#define MANTIS_ERROR 0
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#define MANTIS_NOTICE 1
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#define MANTIS_INFO 2
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#define MANTIS_DEBUG 3
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#define MANTIS_TMG 9
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#define dprintk(y, z, format, arg...) do { \
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if (z) { \
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if ((mantis->verbose > MANTIS_ERROR) && (mantis->verbose > y)) \
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printk(KERN_ERR "%s (%d): " format "\n" , __func__ , mantis->num , ##arg); \
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else if ((mantis->verbose > MANTIS_NOTICE) && (mantis->verbose > y)) \
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printk(KERN_NOTICE "%s (%d): " format "\n" , __func__ , mantis->num , ##arg); \
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else if ((mantis->verbose > MANTIS_INFO) && (mantis->verbose > y)) \
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printk(KERN_INFO "%s (%d): " format "\n" , __func__ , mantis->num , ##arg); \
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else if ((mantis->verbose > MANTIS_DEBUG) && (mantis->verbose > y)) \
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printk(KERN_DEBUG "%s (%d): " format "\n" , __func__ , mantis->num , ##arg); \
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else if ((mantis->verbose > MANTIS_TMG) && (mantis->verbose > y)) \
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printk(KERN_DEBUG "%s (%d): " format "\n" , __func__ , mantis->num , ##arg); \
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} else { \
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if (mantis->verbose > y) \
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printk(format , ##arg); \
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} \
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} while(0)
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#define mwrite(dat, addr) writel((dat), addr)
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#define mread(addr) readl(addr)
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#define mmwrite(dat, addr) mwrite((dat), (mantis->mmio + (addr)))
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#define mmread(addr) mread(mantis->mmio + (addr))
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#define MANTIS_TS_188 0
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#define MANTIS_TS_204 1
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#define TWINHAN_TECHNOLOGIES 0x1822
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#define MANTIS 0x4e35
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#define TECHNISAT 0x1ae4
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#define TERRATEC 0x153b
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#define MAKE_ENTRY(__subven, __subdev, __configptr) { \
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.vendor = TWINHAN_TECHNOLOGIES, \
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.device = MANTIS, \
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.subvendor = (__subven), \
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.subdevice = (__subdev), \
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.driver_data = (unsigned long) (__configptr) \
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}
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enum mantis_i2c_mode {
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MANTIS_PAGE_MODE = 0,
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MANTIS_BYTE_MODE,
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};
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struct mantis_pci;
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struct mantis_hwconfig {
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char *model_name;
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char *dev_type;
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u32 ts_size;
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enum mantis_baud baud_rate;
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enum mantis_parity parity;
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u32 bytes;
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irqreturn_t (*irq_handler)(int irq, void *dev_id);
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int (*frontend_init)(struct mantis_pci *mantis, struct dvb_frontend *fe);
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u8 power;
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u8 reset;
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enum mantis_i2c_mode i2c_mode;
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};
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struct mantis_pci {
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unsigned int verbose;
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/* PCI stuff */
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u16 vendor_id;
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u16 device_id;
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u16 subsystem_vendor;
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u16 subsystem_device;
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u8 latency;
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struct pci_dev *pdev;
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unsigned long mantis_addr;
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void __iomem *mmio;
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u8 irq;
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u8 revision;
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unsigned int num;
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/* RISC Core */
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u32 busy_block;
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u32 last_block;
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u8 *buf_cpu;
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dma_addr_t buf_dma;
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u32 *risc_cpu;
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dma_addr_t risc_dma;
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struct tasklet_struct tasklet;
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struct i2c_adapter adapter;
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int i2c_rc;
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wait_queue_head_t i2c_wq;
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struct mutex i2c_lock;
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/* DVB stuff */
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struct dvb_adapter dvb_adapter;
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struct dvb_frontend *fe;
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struct dvb_demux demux;
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struct dmxdev dmxdev;
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struct dmx_frontend fe_hw;
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struct dmx_frontend fe_mem;
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struct dvb_net dvbnet;
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u8 feeds;
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struct mantis_hwconfig *hwconfig;
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u32 mantis_int_stat;
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u32 mantis_int_mask;
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/* board specific */
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u8 mac_address[8];
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u32 sub_vendor_id;
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u32 sub_device_id;
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/* A12 A13 A14 */
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u32 gpio_status;
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u32 gpif_status;
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struct mantis_ca *mantis_ca;
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wait_queue_head_t uart_wq;
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struct work_struct uart_work;
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spinlock_t uart_lock;
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struct rc_dev *rc;
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char input_name[80];
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char input_phys[80];
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};
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#define MANTIS_HIF_STATUS (mantis->gpio_status)
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#endif /* __MANTIS_COMMON_H */
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