// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for the Conexant CX23885 PCIe bridge
*
* Copyright ( c ) 2006 Steven Toth < stoth @ linuxtv . org >
*/
#include "cx23885.h"
#include <linux/init.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kmod.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <asm /div64.h>
#include <linux/firmware.h>
#include "cimax2.h"
#include "altera-ci.h"
#include "cx23888-ir.h"
#include "cx23885-ir.h"
#include "cx23885-av.h"
#include "cx23885-input.h"
MODULE_DESCRIPTION("Driver for cx23885 based TV cards" );
MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>" );
MODULE_LICENSE("GPL" );
MODULE_VERSION(CX23885_VERSION);
/*
* Some platforms have been found to require periodic resetting of the DMA
* engine . Ryzen and XEON platforms are known to be affected . The symptom
* encountered is " mpeg risc op code error " . Only Ryzen platforms employ
* this workaround if the option equals 1 . The workaround can be explicitly
* disabled for all platforms by setting to 0 , the workaround can be forced
* on for any platform by setting to 2 .
*/
static unsigned int dma_reset_workaround = 1 ;
module_param(dma_reset_workaround, int , 0644 );
MODULE_PARM_DESC(dma_reset_workaround, "periodic RiSC dma engine reset; 0-force disable, 1-driver detect (default), 2-force enable" );
static unsigned int debug;
module_param(debug, int , 0644 );
MODULE_PARM_DESC(debug, "enable debug messages" );
static unsigned int card[] = {[0 ... (CX23885_MAXBOARDS - 1 )] = UNSET };
module_param_array(card, int , NULL, 0444 );
MODULE_PARM_DESC(card, "card type" );
#define dprintk(level, fmt, arg...)\
do { if (debug >= level)\
printk(KERN_DEBUG pr_fmt("%s: " fmt), \
__func__, ## arg); \
} while (0 )
static unsigned int cx23885_devcount;
#define NO_SYNC_LINE (-1 U)
/* FIXME, these allocations will change when
* analog arrives . The be reviewed .
* CX23887 Assumptions
* 1 line = 16 bytes of CDT
* cmds size = 80
* cdt size = 16 * linesize
* iqsize = 64
* maxlines = 6
*
* Address Space :
* 0 x00000000 0 x00008fff FIFO clusters
* 0 x00010000 0 x000104af Channel Management Data Structures
* 0 x000104b0 0 x000104ff Free
* 0 x00010500 0 x000108bf 15 channels * iqsize
* 0 x000108c0 0 x000108ff Free
* 0 x00010900 0 x00010e9f IQ ' s + Cluster Descriptor Tables
* 15 channels * ( iqsize + ( maxlines * linesize ) )
* 0 x00010ea0 0 x00010xxx Free
*/
static struct sram_channel cx23885_sram_channels[] = {
[SRAM_CH01] = {
.name = "VID A" ,
.cmds_start = 0 x10000,
.ctrl_start = 0 x10380,
.cdt = 0 x104c0,
.fifo_start = 0 x40,
.fifo_size = 0 x2800,
.ptr1_reg = DMA1_PTR1,
.ptr2_reg = DMA1_PTR2,
.cnt1_reg = DMA1_CNT1,
.cnt2_reg = DMA1_CNT2,
},
[SRAM_CH02] = {
.name = "ch2" ,
.cmds_start = 0 x0,
.ctrl_start = 0 x0,
.cdt = 0 x0,
.fifo_start = 0 x0,
.fifo_size = 0 x0,
.ptr1_reg = DMA2_PTR1,
.ptr2_reg = DMA2_PTR2,
.cnt1_reg = DMA2_CNT1,
.cnt2_reg = DMA2_CNT2,
},
[SRAM_CH03] = {
.name = "TS1 B" ,
.cmds_start = 0 x100A0,
.ctrl_start = 0 x10400,
.cdt = 0 x10580,
.fifo_start = 0 x5000,
.fifo_size = 0 x1000,
.ptr1_reg = DMA3_PTR1,
.ptr2_reg = DMA3_PTR2,
.cnt1_reg = DMA3_CNT1,
.cnt2_reg = DMA3_CNT2,
},
[SRAM_CH04] = {
.name = "ch4" ,
.cmds_start = 0 x0,
.ctrl_start = 0 x0,
.cdt = 0 x0,
.fifo_start = 0 x0,
.fifo_size = 0 x0,
.ptr1_reg = DMA4_PTR1,
.ptr2_reg = DMA4_PTR2,
.cnt1_reg = DMA4_CNT1,
.cnt2_reg = DMA4_CNT2,
},
[SRAM_CH05] = {
.name = "ch5" ,
.cmds_start = 0 x0,
.ctrl_start = 0 x0,
.cdt = 0 x0,
.fifo_start = 0 x0,
.fifo_size = 0 x0,
.ptr1_reg = DMA5_PTR1,
.ptr2_reg = DMA5_PTR2,
.cnt1_reg = DMA5_CNT1,
.cnt2_reg = DMA5_CNT2,
},
[SRAM_CH06] = {
.name = "TS2 C" ,
.cmds_start = 0 x10140,
.ctrl_start = 0 x10440,
.cdt = 0 x105e0,
.fifo_start = 0 x6000,
.fifo_size = 0 x1000,
.ptr1_reg = DMA5_PTR1,
.ptr2_reg = DMA5_PTR2,
.cnt1_reg = DMA5_CNT1,
.cnt2_reg = DMA5_CNT2,
},
[SRAM_CH07] = {
.name = "TV Audio" ,
.cmds_start = 0 x10190,
.ctrl_start = 0 x10480,
.cdt = 0 x10a00,
.fifo_start = 0 x7000,
.fifo_size = 0 x1000,
.ptr1_reg = DMA6_PTR1,
.ptr2_reg = DMA6_PTR2,
.cnt1_reg = DMA6_CNT1,
.cnt2_reg = DMA6_CNT2,
},
[SRAM_CH08] = {
.name = "ch8" ,
.cmds_start = 0 x0,
.ctrl_start = 0 x0,
.cdt = 0 x0,
.fifo_start = 0 x0,
.fifo_size = 0 x0,
.ptr1_reg = DMA7_PTR1,
.ptr2_reg = DMA7_PTR2,
.cnt1_reg = DMA7_CNT1,
.cnt2_reg = DMA7_CNT2,
},
[SRAM_CH09] = {
.name = "ch9" ,
.cmds_start = 0 x0,
.ctrl_start = 0 x0,
.cdt = 0 x0,
.fifo_start = 0 x0,
.fifo_size = 0 x0,
.ptr1_reg = DMA8_PTR1,
.ptr2_reg = DMA8_PTR2,
.cnt1_reg = DMA8_CNT1,
.cnt2_reg = DMA8_CNT2,
},
};
static struct sram_channel cx23887_sram_channels[] = {
[SRAM_CH01] = {
.name = "VID A" ,
.cmds_start = 0 x10000,
.ctrl_start = 0 x105b0,
.cdt = 0 x107b0,
.fifo_start = 0 x40,
.fifo_size = 0 x2800,
.ptr1_reg = DMA1_PTR1,
.ptr2_reg = DMA1_PTR2,
.cnt1_reg = DMA1_CNT1,
.cnt2_reg = DMA1_CNT2,
},
[SRAM_CH02] = {
.name = "VID A (VBI)" ,
.cmds_start = 0 x10050,
.ctrl_start = 0 x105F0,
.cdt = 0 x10810,
.fifo_start = 0 x3000,
.fifo_size = 0 x1000,
.ptr1_reg = DMA2_PTR1,
.ptr2_reg = DMA2_PTR2,
.cnt1_reg = DMA2_CNT1,
.cnt2_reg = DMA2_CNT2,
},
[SRAM_CH03] = {
.name = "TS1 B" ,
.cmds_start = 0 x100A0,
.ctrl_start = 0 x10630,
.cdt = 0 x10870,
.fifo_start = 0 x5000,
.fifo_size = 0 x1000,
.ptr1_reg = DMA3_PTR1,
.ptr2_reg = DMA3_PTR2,
.cnt1_reg = DMA3_CNT1,
.cnt2_reg = DMA3_CNT2,
},
[SRAM_CH04] = {
.name = "ch4" ,
.cmds_start = 0 x0,
.ctrl_start = 0 x0,
.cdt = 0 x0,
.fifo_start = 0 x0,
.fifo_size = 0 x0,
.ptr1_reg = DMA4_PTR1,
.ptr2_reg = DMA4_PTR2,
.cnt1_reg = DMA4_CNT1,
.cnt2_reg = DMA4_CNT2,
},
[SRAM_CH05] = {
.name = "ch5" ,
.cmds_start = 0 x0,
.ctrl_start = 0 x0,
.cdt = 0 x0,
.fifo_start = 0 x0,
.fifo_size = 0 x0,
.ptr1_reg = DMA5_PTR1,
.ptr2_reg = DMA5_PTR2,
.cnt1_reg = DMA5_CNT1,
.cnt2_reg = DMA5_CNT2,
},
[SRAM_CH06] = {
.name = "TS2 C" ,
.cmds_start = 0 x10140,
.ctrl_start = 0 x10670,
.cdt = 0 x108d0,
.fifo_start = 0 x6000,
.fifo_size = 0 x1000,
.ptr1_reg = DMA5_PTR1,
.ptr2_reg = DMA5_PTR2,
.cnt1_reg = DMA5_CNT1,
.cnt2_reg = DMA5_CNT2,
},
[SRAM_CH07] = {
.name = "TV Audio" ,
.cmds_start = 0 x10190,
.ctrl_start = 0 x106B0,
.cdt = 0 x10930,
.fifo_start = 0 x7000,
.fifo_size = 0 x1000,
.ptr1_reg = DMA6_PTR1,
.ptr2_reg = DMA6_PTR2,
.cnt1_reg = DMA6_CNT1,
.cnt2_reg = DMA6_CNT2,
},
[SRAM_CH08] = {
.name = "ch8" ,
.cmds_start = 0 x0,
.ctrl_start = 0 x0,
.cdt = 0 x0,
.fifo_start = 0 x0,
.fifo_size = 0 x0,
.ptr1_reg = DMA7_PTR1,
.ptr2_reg = DMA7_PTR2,
.cnt1_reg = DMA7_CNT1,
.cnt2_reg = DMA7_CNT2,
},
[SRAM_CH09] = {
.name = "ch9" ,
.cmds_start = 0 x0,
.ctrl_start = 0 x0,
.cdt = 0 x0,
.fifo_start = 0 x0,
.fifo_size = 0 x0,
.ptr1_reg = DMA8_PTR1,
.ptr2_reg = DMA8_PTR2,
.cnt1_reg = DMA8_CNT1,
.cnt2_reg = DMA8_CNT2,
},
};
static void cx23885_irq_add(struct cx23885_dev *dev, u32 mask)
{
unsigned long flags;
spin_lock_irqsave(&dev->pci_irqmask_lock, flags);
dev->pci_irqmask |= mask;
spin_unlock_irqrestore(&dev->pci_irqmask_lock, flags);
}
void cx23885_irq_add_enable(struct cx23885_dev *dev, u32 mask)
{
unsigned long flags;
spin_lock_irqsave(&dev->pci_irqmask_lock, flags);
dev->pci_irqmask |= mask;
cx_set(PCI_INT_MSK, mask);
spin_unlock_irqrestore(&dev->pci_irqmask_lock, flags);
}
void cx23885_irq_enable(struct cx23885_dev *dev, u32 mask)
{
u32 v;
unsigned long flags;
spin_lock_irqsave(&dev->pci_irqmask_lock, flags);
v = mask & dev->pci_irqmask;
if (v)
cx_set(PCI_INT_MSK, v);
spin_unlock_irqrestore(&dev->pci_irqmask_lock, flags);
}
static inline void cx23885_irq_enable_all(struct cx23885_dev *dev)
{
cx23885_irq_enable(dev, 0 xffffffff);
}
void cx23885_irq_disable(struct cx23885_dev *dev, u32 mask)
{
unsigned long flags;
spin_lock_irqsave(&dev->pci_irqmask_lock, flags);
cx_clear(PCI_INT_MSK, mask);
spin_unlock_irqrestore(&dev->pci_irqmask_lock, flags);
}
static inline void cx23885_irq_disable_all(struct cx23885_dev *dev)
{
cx23885_irq_disable(dev, 0 xffffffff);
}
void cx23885_irq_remove(struct cx23885_dev *dev, u32 mask)
{
unsigned long flags;
spin_lock_irqsave(&dev->pci_irqmask_lock, flags);
dev->pci_irqmask &= ~mask;
cx_clear(PCI_INT_MSK, mask);
spin_unlock_irqrestore(&dev->pci_irqmask_lock, flags);
}
static u32 cx23885_irq_get_mask(struct cx23885_dev *dev)
{
u32 v;
unsigned long flags;
spin_lock_irqsave(&dev->pci_irqmask_lock, flags);
v = cx_read(PCI_INT_MSK);
spin_unlock_irqrestore(&dev->pci_irqmask_lock, flags);
return v;
}
static int cx23885_risc_decode(u32 risc)
{
static char *instr[16 ] = {
[RISC_SYNC >> 28 ] = "sync" ,
[RISC_WRITE >> 28 ] = "write" ,
[RISC_WRITEC >> 28 ] = "writec" ,
[RISC_READ >> 28 ] = "read" ,
[RISC_READC >> 28 ] = "readc" ,
[RISC_JUMP >> 28 ] = "jump" ,
[RISC_SKIP >> 28 ] = "skip" ,
[RISC_WRITERM >> 28 ] = "writerm" ,
[RISC_WRITECM >> 28 ] = "writecm" ,
[RISC_WRITECR >> 28 ] = "writecr" ,
};
static int incr[16 ] = {
[RISC_WRITE >> 28 ] = 3 ,
[RISC_JUMP >> 28 ] = 3 ,
[RISC_SKIP >> 28 ] = 1 ,
[RISC_SYNC >> 28 ] = 1 ,
[RISC_WRITERM >> 28 ] = 3 ,
[RISC_WRITECM >> 28 ] = 3 ,
[RISC_WRITECR >> 28 ] = 4 ,
};
static char *bits[] = {
"12" , "13" , "14" , "resync" ,
"cnt0" , "cnt1" , "18" , "19" ,
"20" , "21" , "22" , "23" ,
"irq1" , "irq2" , "eol" , "sol" ,
};
int i;
printk(KERN_DEBUG "0x%08x [ %s" , risc,
instr[risc >> 28 ] ? instr[risc >> 28 ] : "INVALID" );
for (i = ARRAY_SIZE(bits) - 1 ; i >= 0 ; i--)
if (risc & (1 << (i + 12 )))
pr_cont(" %s" , bits[i]);
pr_cont(" count=%d ]\n" , risc & 0 xfff);
return incr[risc >> 28 ] ? incr[risc >> 28 ] : 1 ;
}
static void cx23885_wakeup(struct cx23885_tsport *port,
struct cx23885_dmaqueue *q, u32 count)
{
struct cx23885_buffer *buf;
int count_delta;
int max_buf_done = 5 ; /* service maximum five buffers */
do {
if (list_empty(&q->active))
return ;
buf = list_entry(q->active.next,
struct cx23885_buffer, queue);
buf->vb.vb2_buf.timestamp = ktime_get_ns();
buf->vb.sequence = q->count++;
if (count != (q->count % 65536 )) {
dprintk(1 , "[%p/%d] wakeup reg=%d buf=%d\n" , buf,
buf->vb.vb2_buf.index, count, q->count);
} else {
dprintk(7 , "[%p/%d] wakeup reg=%d buf=%d\n" , buf,
buf->vb.vb2_buf.index, count, q->count);
}
list_del(&buf->queue);
vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
max_buf_done--;
/* count register is 16 bits so apply modulo appropriately */
count_delta = ((int )count - (int )(q->count % 65536 ));
} while ((count_delta > 0 ) && (max_buf_done > 0 ));
}
int cx23885_sram_channel_setup(struct cx23885_dev *dev,
struct sram_channel *ch,
unsigned int bpl, u32 risc)
{
unsigned int i, lines;
u32 cdt;
if (ch->cmds_start == 0 ) {
dprintk(1 , "%s() Erasing channel [%s]\n" , __func__,
ch->name);
cx_write(ch->ptr1_reg, 0 );
cx_write(ch->ptr2_reg, 0 );
cx_write(ch->cnt2_reg, 0 );
cx_write(ch->cnt1_reg, 0 );
return 0 ;
} else {
dprintk(1 , "%s() Configuring channel [%s]\n" , __func__,
ch->name);
}
bpl = (bpl + 7 ) & ~7 ; /* alignment */
cdt = ch->cdt;
lines = ch->fifo_size / bpl;
if (lines > 6 )
lines = 6 ;
BUG_ON(lines < 2 );
cx_write(8 + 0 , RISC_JUMP | RISC_CNT_RESET);
cx_write(8 + 4 , 12 );
cx_write(8 + 8 , 0 );
/* write CDT */
for (i = 0 ; i < lines; i++) {
dprintk(2 , "%s() 0x%08x <- 0x%08x\n" , __func__, cdt + 16 *i,
ch->fifo_start + bpl*i);
cx_write(cdt + 16 *i, ch->fifo_start + bpl*i);
cx_write(cdt + 16 *i + 4 , 0 );
cx_write(cdt + 16 *i + 8 , 0 );
cx_write(cdt + 16 *i + 12 , 0 );
}
/* write CMDS */
if (ch->jumponly)
cx_write(ch->cmds_start + 0 , 8 );
else
cx_write(ch->cmds_start + 0 , risc);
cx_write(ch->cmds_start + 4 , 0 ); /* 64 bits 63-32 */
cx_write(ch->cmds_start + 8 , cdt);
cx_write(ch->cmds_start + 12 , (lines*16 ) >> 3 );
cx_write(ch->cmds_start + 16 , ch->ctrl_start);
if (ch->jumponly)
cx_write(ch->cmds_start + 20 , 0 x80000000 | (64 >> 2 ));
else
cx_write(ch->cmds_start + 20 , 64 >> 2 );
for (i = 24 ; i < 80 ; i += 4 )
cx_write(ch->cmds_start + i, 0 );
/* fill registers */
cx_write(ch->ptr1_reg, ch->fifo_start);
cx_write(ch->ptr2_reg, cdt);
cx_write(ch->cnt2_reg, (lines*16 ) >> 3 );
cx_write(ch->cnt1_reg, (bpl >> 3 ) - 1 );
dprintk(2 , "[bridge %d] sram setup %s: bpl=%d lines=%d\n" ,
dev->bridge,
ch->name,
bpl,
lines);
return 0 ;
}
void cx23885_sram_channel_dump(struct cx23885_dev *dev,
struct sram_channel *ch)
{
static char *name[] = {
"init risc lo" ,
"init risc hi" ,
"cdt base" ,
"cdt size" ,
"iq base" ,
"iq size" ,
"risc pc lo" ,
"risc pc hi" ,
"iq wr ptr" ,
"iq rd ptr" ,
"cdt current" ,
"pci target lo" ,
"pci target hi" ,
"line / byte" ,
};
u32 risc;
unsigned int i, j, n;
pr_warn("%s: %s - dma channel status dump\n" ,
dev->name, ch->name);
for (i = 0 ; i < ARRAY_SIZE(name); i++)
pr_warn("%s: cmds: %-15s: 0x%08x\n" ,
dev->name, name[i],
cx_read(ch->cmds_start + 4 *i));
for (i = 0 ; i < 4 ; i++) {
risc = cx_read(ch->cmds_start + 4 * (i + 14 ));
pr_warn("%s: risc%d:" , dev->name, i);
cx23885_risc_decode(risc);
}
for (i = 0 ; i < (64 >> 2 ); i += n) {
risc = cx_read(ch->ctrl_start + 4 * i);
/* No consideration for bits 63-32 */
pr_warn("%s: (0x%08x) iq %x:" , dev->name,
ch->ctrl_start + 4 * i, i);
n = cx23885_risc_decode(risc);
for (j = 1 ; j < n; j++) {
risc = cx_read(ch->ctrl_start + 4 * (i + j));
pr_warn("%s: iq %x: 0x%08x [ arg #%d ]\n" ,
dev->name, i+j, risc, j);
}
}
pr_warn("%s: fifo: 0x%08x -> 0x%x\n" ,
dev->name, ch->fifo_start, ch->fifo_start+ch->fifo_size);
pr_warn("%s: ctrl: 0x%08x -> 0x%x\n" ,
dev->name, ch->ctrl_start, ch->ctrl_start + 6 *16 );
pr_warn("%s: ptr1_reg: 0x%08x\n" ,
dev->name, cx_read(ch->ptr1_reg));
pr_warn("%s: ptr2_reg: 0x%08x\n" ,
dev->name, cx_read(ch->ptr2_reg));
pr_warn("%s: cnt1_reg: 0x%08x\n" ,
dev->name, cx_read(ch->cnt1_reg));
pr_warn("%s: cnt2_reg: 0x%08x\n" ,
dev->name, cx_read(ch->cnt2_reg));
}
static void cx23885_risc_disasm(struct cx23885_tsport *port,
struct cx23885_riscmem *risc)
{
struct cx23885_dev *dev = port->dev;
unsigned int i, j, n;
pr_info("%s: risc disasm: %p [dma=0x%08lx]\n" ,
dev->name, risc->cpu, (unsigned long )risc->dma);
for (i = 0 ; i < (risc->size >> 2 ); i += n) {
pr_info("%s: %04d:" , dev->name, i);
n = cx23885_risc_decode(le32_to_cpu(risc->cpu[i]));
for (j = 1 ; j < n; j++)
pr_info("%s: %04d: 0x%08x [ arg #%d ]\n" ,
dev->name, i + j, risc->cpu[i + j], j);
if (risc->cpu[i] == cpu_to_le32(RISC_JUMP))
break ;
}
}
static void cx23885_clear_bridge_error(struct cx23885_dev *dev)
{
uint32_t reg1_val, reg2_val;
if (!dev->need_dma_reset)
return ;
reg1_val = cx_read(TC_REQ); /* read-only */
reg2_val = cx_read(TC_REQ_SET);
if (reg1_val && reg2_val) {
cx_write(TC_REQ, reg1_val);
cx_write(TC_REQ_SET, reg2_val);
cx_read(VID_B_DMA);
cx_read(VBI_B_DMA);
cx_read(VID_C_DMA);
cx_read(VBI_C_DMA);
dev_info(&dev->pci->dev,
"dma in progress detected 0x%08x 0x%08x, clearing\n" ,
reg1_val, reg2_val);
}
}
static void cx23885_shutdown(struct cx23885_dev *dev)
{
/* disable RISC controller */
cx_write(DEV_CNTRL2, 0 );
/* Disable all IR activity */
cx_write(IR_CNTRL_REG, 0 );
/* Disable Video A/B activity */
cx_write(VID_A_DMA_CTL, 0 );
cx_write(VID_B_DMA_CTL, 0 );
cx_write(VID_C_DMA_CTL, 0 );
/* Disable Audio activity */
cx_write(AUD_INT_DMA_CTL, 0 );
cx_write(AUD_EXT_DMA_CTL, 0 );
/* Disable Serial port */
cx_write(UART_CTL, 0 );
/* Disable Interrupts */
cx23885_irq_disable_all(dev);
cx_write(VID_A_INT_MSK, 0 );
cx_write(VID_B_INT_MSK, 0 );
cx_write(VID_C_INT_MSK, 0 );
cx_write(AUDIO_INT_INT_MSK, 0 );
cx_write(AUDIO_EXT_INT_MSK, 0 );
}
static void cx23885_reset(struct cx23885_dev *dev)
{
dprintk(1 , "%s()\n" , __func__);
cx23885_shutdown(dev);
cx_write(PCI_INT_STAT, 0 xffffffff);
cx_write(VID_A_INT_STAT, 0 xffffffff);
cx_write(VID_B_INT_STAT, 0 xffffffff);
cx_write(VID_C_INT_STAT, 0 xffffffff);
cx_write(AUDIO_INT_INT_STAT, 0 xffffffff);
cx_write(AUDIO_EXT_INT_STAT, 0 xffffffff);
cx_write(CLK_DELAY, cx_read(CLK_DELAY) & 0 x80000000);
cx_write(PAD_CTRL, 0 x00500300);
/* clear dma in progress */
cx23885_clear_bridge_error(dev);
msleep(100 );
cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
720 *4 , 0 );
cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH02], 128 , 0 );
cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH03],
188 *4 , 0 );
cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH04], 128 , 0 );
cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH05], 128 , 0 );
cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH06],
188 *4 , 0 );
cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH07], 128 , 0 );
cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH08], 128 , 0 );
cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH09], 128 , 0 );
cx23885_gpio_setup(dev);
cx23885_irq_get_mask(dev);
/* clear dma in progress */
cx23885_clear_bridge_error(dev);
}
static int cx23885_pci_quirks(struct cx23885_dev *dev)
{
dprintk(1 , "%s()\n" , __func__);
/* The cx23885 bridge has a weird bug which causes NMI to be asserted
* when DMA begins if RDR_TLCTL0 bit4 is not cleared . It does not
* occur on the cx23887 bridge .
*/
if (dev->bridge == CX23885_BRIDGE_885)
cx_clear(RDR_TLCTL0, 1 << 4 );
/* clear dma in progress */
cx23885_clear_bridge_error(dev);
return 0 ;
}
static int get_resources(struct cx23885_dev *dev)
{
if (request_mem_region(pci_resource_start(dev->pci, 0 ),
pci_resource_len(dev->pci, 0 ),
dev->name))
return 0 ;
pr_err("%s: can't get MMIO memory @ 0x%llx\n" ,
dev->name, (unsigned long long )pci_resource_start(dev->pci, 0 ));
return -EBUSY;
}
static int cx23885_init_tsport(struct cx23885_dev *dev,
struct cx23885_tsport *port, int portno)
{
dprintk(1 , "%s(portno=%d)\n" , __func__, portno);
/* Transport bus init dma queue - Common settings */
port->dma_ctl_val = 0 x11; /* Enable RISC controller and Fifo */
port->ts_int_msk_val = 0 x1111; /* TS port bits for RISC */
port->vld_misc_val = 0 x0;
port->hw_sop_ctrl_val = (0 x47 << 16 | 188 << 4 );
spin_lock_init(&port->slock);
port->dev = dev;
port->nr = portno;
INIT_LIST_HEAD(&port->mpegq.active);
mutex_init(&port->frontends.lock);
INIT_LIST_HEAD(&port->frontends.felist);
port->frontends.active_fe_id = 0 ;
/* This should be hardcoded allow a single frontend
* attachment to this tsport , keeping the - dvb . c
* code clean and safe .
*/
if (!port->num_frontends)
port->num_frontends = 1 ;
switch (portno) {
case 1 :
port->reg_gpcnt = VID_B_GPCNT;
port->reg_gpcnt_ctl = VID_B_GPCNT_CTL;
port->reg_dma_ctl = VID_B_DMA_CTL;
port->reg_lngth = VID_B_LNGTH;
port->reg_hw_sop_ctrl = VID_B_HW_SOP_CTL;
port->reg_gen_ctrl = VID_B_GEN_CTL;
port->reg_bd_pkt_status = VID_B_BD_PKT_STATUS;
port->reg_sop_status = VID_B_SOP_STATUS;
port->reg_fifo_ovfl_stat = VID_B_FIFO_OVFL_STAT;
port->reg_vld_misc = VID_B_VLD_MISC;
port->reg_ts_clk_en = VID_B_TS_CLK_EN;
port->reg_src_sel = VID_B_SRC_SEL;
port->reg_ts_int_msk = VID_B_INT_MSK;
port->reg_ts_int_stat = VID_B_INT_STAT;
port->sram_chno = SRAM_CH03; /* VID_B */
port->pci_irqmask = 0 x02; /* VID_B bit1 */
break ;
case 2 :
port->reg_gpcnt = VID_C_GPCNT;
port->reg_gpcnt_ctl = VID_C_GPCNT_CTL;
port->reg_dma_ctl = VID_C_DMA_CTL;
port->reg_lngth = VID_C_LNGTH;
port->reg_hw_sop_ctrl = VID_C_HW_SOP_CTL;
port->reg_gen_ctrl = VID_C_GEN_CTL;
port->reg_bd_pkt_status = VID_C_BD_PKT_STATUS;
port->reg_sop_status = VID_C_SOP_STATUS;
port->reg_fifo_ovfl_stat = VID_C_FIFO_OVFL_STAT;
port->reg_vld_misc = VID_C_VLD_MISC;
port->reg_ts_clk_en = VID_C_TS_CLK_EN;
port->reg_src_sel = 0 ;
port->reg_ts_int_msk = VID_C_INT_MSK;
port->reg_ts_int_stat = VID_C_INT_STAT;
port->sram_chno = SRAM_CH06; /* VID_C */
port->pci_irqmask = 0 x04; /* VID_C bit2 */
break ;
default :
BUG();
}
return 0 ;
}
static void cx23885_dev_checkrevision(struct cx23885_dev *dev)
{
switch (cx_read(RDR_CFG2) & 0 xff) {
case 0 x00:
/* cx23885 */
dev->hwrevision = 0 xa0;
break ;
case 0 x01:
/* CX23885-12Z */
dev->hwrevision = 0 xa1;
break ;
case 0 x02:
/* CX23885-13Z/14Z */
dev->hwrevision = 0 xb0;
break ;
case 0 x03:
if (dev->pci->device == 0 x8880) {
/* CX23888-21Z/22Z */
dev->hwrevision = 0 xc0;
} else {
/* CX23885-14Z */
dev->hwrevision = 0 xa4;
}
break ;
case 0 x04:
if (dev->pci->device == 0 x8880) {
/* CX23888-31Z */
dev->hwrevision = 0 xd0;
} else {
/* CX23885-15Z, CX23888-31Z */
dev->hwrevision = 0 xa5;
}
break ;
case 0 x0e:
/* CX23887-15Z */
dev->hwrevision = 0 xc0;
break ;
case 0 x0f:
/* CX23887-14Z */
dev->hwrevision = 0 xb1;
break ;
default :
pr_err("%s() New hardware revision found 0x%x\n" ,
__func__, dev->hwrevision);
}
if (dev->hwrevision)
pr_info("%s() Hardware revision = 0x%02x\n" ,
__func__, dev->hwrevision);
else
pr_err("%s() Hardware revision unknown 0x%x\n" ,
__func__, dev->hwrevision);
}
/* Find the first v4l2_subdev member of the group id in hw */
struct v4l2_subdev *cx23885_find_hw(struct cx23885_dev *dev, u32 hw)
{
struct v4l2_subdev *result = NULL;
struct v4l2_subdev *sd;
spin_lock(&dev->v4l2_dev.lock);
v4l2_device_for_each_subdev(sd, &dev->v4l2_dev) {
if (sd->grp_id == hw) {
result = sd;
break ;
}
}
spin_unlock(&dev->v4l2_dev.lock);
return result;
}
static int cx23885_dev_setup(struct cx23885_dev *dev)
{
int i;
spin_lock_init(&dev->pci_irqmask_lock);
spin_lock_init(&dev->slock);
mutex_init(&dev->lock);
mutex_init(&dev->gpio_lock);
atomic_inc(&dev->refcount);
dev->nr = cx23885_devcount++;
sprintf(dev->name, "cx23885[%d]" , dev->nr);
/* Configure the internal memory */
if (dev->pci->device == 0 x8880) {
/* Could be 887 or 888, assume an 888 default */
dev->bridge = CX23885_BRIDGE_888;
/* Apply a sensible clock frequency for the PCIe bridge */
dev->clk_freq = 50000000 ;
dev->sram_channels = cx23887_sram_channels;
} else
if (dev->pci->device == 0 x8852) {
dev->bridge = CX23885_BRIDGE_885;
/* Apply a sensible clock frequency for the PCIe bridge */
dev->clk_freq = 28000000 ;
dev->sram_channels = cx23885_sram_channels;
} else
BUG();
dprintk(1 , "%s() Memory configured for PCIe bridge type %d\n" ,
__func__, dev->bridge);
/* board config */
dev->board = UNSET;
if (card[dev->nr] < cx23885_bcount)
dev->board = card[dev->nr];
for (i = 0 ; UNSET == dev->board && i < cx23885_idcount; i++)
if (dev->pci->subsystem_vendor == cx23885_subids[i].subvendor &&
dev->pci->subsystem_device == cx23885_subids[i].subdevice)
dev->board = cx23885_subids[i].card;
if (UNSET == dev->board) {
dev->board = CX23885_BOARD_UNKNOWN;
cx23885_card_list(dev);
}
if (dev->pci->device == 0 x8852) {
/* no DIF on cx23885, so no analog tuner support possible */
if (dev->board == CX23885_BOARD_HAUPPAUGE_QUADHD_ATSC)
dev->board = CX23885_BOARD_HAUPPAUGE_QUADHD_ATSC_885;
else if (dev->board == CX23885_BOARD_HAUPPAUGE_QUADHD_DVB)
dev->board = CX23885_BOARD_HAUPPAUGE_QUADHD_DVB_885;
}
/* If the user specific a clk freq override, apply it */
if (cx23885_boards[dev->board].clk_freq > 0 )
dev->clk_freq = cx23885_boards[dev->board].clk_freq;
if (dev->board == CX23885_BOARD_HAUPPAUGE_IMPACTVCBE &&
dev->pci->subsystem_device == 0 x7137) {
/* Hauppauge ImpactVCBe device ID 0x7137 is populated
* with an 888 , and a 25 Mhz crystal , instead of the
* usual third overtone 50 Mhz . The default clock rate must
* be overridden so the cx25840 is properly configured
*/
dev->clk_freq = 25000000 ;
}
dev->pci_bus = dev->pci->bus->number;
dev->pci_slot = PCI_SLOT(dev->pci->devfn);
cx23885_irq_add(dev, 0 x001f00);
/* External Master 1 Bus */
dev->i2c_bus[0 ].nr = 0 ;
dev->i2c_bus[0 ].dev = dev;
dev->i2c_bus[0 ].reg_stat = I2C1_STAT;
dev->i2c_bus[0 ].reg_ctrl = I2C1_CTRL;
dev->i2c_bus[0 ].reg_addr = I2C1_ADDR;
dev->i2c_bus[0 ].reg_rdata = I2C1_RDATA;
dev->i2c_bus[0 ].reg_wdata = I2C1_WDATA;
dev->i2c_bus[0 ].i2c_period = (0 x9d << 24 ); /* 100kHz */
/* External Master 2 Bus */
dev->i2c_bus[1 ].nr = 1 ;
dev->i2c_bus[1 ].dev = dev;
dev->i2c_bus[1 ].reg_stat = I2C2_STAT;
dev->i2c_bus[1 ].reg_ctrl = I2C2_CTRL;
dev->i2c_bus[1 ].reg_addr = I2C2_ADDR;
dev->i2c_bus[1 ].reg_rdata = I2C2_RDATA;
dev->i2c_bus[1 ].reg_wdata = I2C2_WDATA;
dev->i2c_bus[1 ].i2c_period = (0 x9d << 24 ); /* 100kHz */
/* Internal Master 3 Bus */
dev->i2c_bus[2 ].nr = 2 ;
dev->i2c_bus[2 ].dev = dev;
dev->i2c_bus[2 ].reg_stat = I2C3_STAT;
dev->i2c_bus[2 ].reg_ctrl = I2C3_CTRL;
dev->i2c_bus[2 ].reg_addr = I2C3_ADDR;
dev->i2c_bus[2 ].reg_rdata = I2C3_RDATA;
dev->i2c_bus[2 ].reg_wdata = I2C3_WDATA;
dev->i2c_bus[2 ].i2c_period = (0 x07 << 24 ); /* 1.95MHz */
if ((cx23885_boards[dev->board].portb == CX23885_MPEG_DVB) ||
(cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER))
cx23885_init_tsport(dev, &dev->ts1, 1 );
if ((cx23885_boards[dev->board].portc == CX23885_MPEG_DVB) ||
(cx23885_boards[dev->board].portc == CX23885_MPEG_ENCODER))
cx23885_init_tsport(dev, &dev->ts2, 2 );
if (get_resources(dev) < 0 ) {
pr_err("CORE %s No more PCIe resources for subsystem: %04x:%04x\n" ,
dev->name, dev->pci->subsystem_vendor,
dev->pci->subsystem_device);
cx23885_devcount--;
return -ENODEV;
}
/* PCIe stuff */
dev->lmmio = ioremap(pci_resource_start(dev->pci, 0 ),
pci_resource_len(dev->pci, 0 ));
dev->bmmio = (u8 __iomem *)dev->lmmio;
pr_info("CORE %s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n" ,
dev->name, dev->pci->subsystem_vendor,
dev->pci->subsystem_device, cx23885_boards[dev->board].name,
dev->board, card[dev->nr] == dev->board ?
"insmod option" : "autodetected" );
cx23885_pci_quirks(dev);
/* Assume some sensible defaults */
dev->tuner_type = cx23885_boards[dev->board].tuner_type;
dev->tuner_addr = cx23885_boards[dev->board].tuner_addr;
dev->tuner_bus = cx23885_boards[dev->board].tuner_bus;
dev->radio_type = cx23885_boards[dev->board].radio_type;
dev->radio_addr = cx23885_boards[dev->board].radio_addr;
dprintk(1 , "%s() tuner_type = 0x%x tuner_addr = 0x%x tuner_bus = %d\n" ,
__func__, dev->tuner_type, dev->tuner_addr, dev->tuner_bus);
dprintk(1 , "%s() radio_type = 0x%x radio_addr = 0x%x\n" ,
__func__, dev->radio_type, dev->radio_addr);
/* The cx23417 encoder has GPIO's that need to be initialised
* before DVB , so that demodulators and tuners are out of
* reset before DVB uses them .
*/
if ((cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER) ||
(cx23885_boards[dev->board].portc == CX23885_MPEG_ENCODER))
cx23885_mc417_init(dev);
/* init hardware */
cx23885_reset(dev);
cx23885_i2c_register(&dev->i2c_bus[0 ]);
cx23885_i2c_register(&dev->i2c_bus[1 ]);
cx23885_i2c_register(&dev->i2c_bus[2 ]);
cx23885_card_setup(dev);
call_all(dev, tuner, standby);
cx23885_ir_init(dev);
if (dev->board == CX23885_BOARD_VIEWCAST_460E) {
/*
* GPIOs 9 / 8 are input detection bits for the breakout video
* ( gpio 8 ) and audio ( gpio 9 ) cables . When they ' re attached ,
* this gpios are pulled high . Make sure these GPIOs are marked
* as inputs .
*/
cx23885_gpio_enable(dev, 0 x300, 0 );
}
if (cx23885_boards[dev->board].porta == CX23885_ANALOG_VIDEO) {
if (cx23885_video_register(dev) < 0 ) {
pr_err("%s() Failed to register analog video adapters on VID_A\n" ,
__func__);
}
}
if (cx23885_boards[dev->board].portb == CX23885_MPEG_DVB) {
if (cx23885_boards[dev->board].num_fds_portb)
dev->ts1.num_frontends =
cx23885_boards[dev->board].num_fds_portb;
if (cx23885_dvb_register(&dev->ts1) < 0 ) {
pr_err("%s() Failed to register dvb adapters on VID_B\n" ,
__func__);
}
} else
if (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER) {
if (cx23885_417_register(dev) < 0 ) {
pr_err("%s() Failed to register 417 on VID_B\n" ,
__func__);
}
}
if (cx23885_boards[dev->board].portc == CX23885_MPEG_DVB) {
if (cx23885_boards[dev->board].num_fds_portc)
dev->ts2.num_frontends =
cx23885_boards[dev->board].num_fds_portc;
if (cx23885_dvb_register(&dev->ts2) < 0 ) {
pr_err("%s() Failed to register dvb on VID_C\n" ,
__func__);
}
} else
if (cx23885_boards[dev->board].portc == CX23885_MPEG_ENCODER) {
if (cx23885_417_register(dev) < 0 ) {
pr_err("%s() Failed to register 417 on VID_C\n" ,
__func__);
}
}
cx23885_dev_checkrevision(dev);
/* disable MSI for NetUP cards, otherwise CI is not working */
if (cx23885_boards[dev->board].ci_type > 0 )
cx_clear(RDR_RDRCTL1, 1 << 8 );
switch (dev->board) {
case CX23885_BOARD_TEVII_S470:
case CX23885_BOARD_TEVII_S471:
cx_clear(RDR_RDRCTL1, 1 << 8 );
break ;
}
return 0 ;
}
static void cx23885_dev_unregister(struct cx23885_dev *dev)
{
release_mem_region(pci_resource_start(dev->pci, 0 ),
pci_resource_len(dev->pci, 0 ));
if (!atomic_dec_and_test(&dev->refcount))
return ;
if (cx23885_boards[dev->board].porta == CX23885_ANALOG_VIDEO)
cx23885_video_unregister(dev);
if (cx23885_boards[dev->board].portb == CX23885_MPEG_DVB)
cx23885_dvb_unregister(&dev->ts1);
if (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER)
cx23885_417_unregister(dev);
if (cx23885_boards[dev->board].portc == CX23885_MPEG_DVB)
cx23885_dvb_unregister(&dev->ts2);
if (cx23885_boards[dev->board].portc == CX23885_MPEG_ENCODER)
cx23885_417_unregister(dev);
cx23885_i2c_unregister(&dev->i2c_bus[2 ]);
cx23885_i2c_unregister(&dev->i2c_bus[1 ]);
cx23885_i2c_unregister(&dev->i2c_bus[0 ]);
iounmap(dev->lmmio);
}
static __le32 *cx23885_risc_field(__le32 *rp, struct scatterlist *sglist,
unsigned int offset, u32 sync_line,
unsigned int bpl, unsigned int padding,
unsigned int lines, unsigned int lpi, bool jump)
{
struct scatterlist *sg;
unsigned int line, todo, sol;
if (jump) {
*(rp++) = cpu_to_le32(RISC_JUMP);
*(rp++) = cpu_to_le32(0 );
*(rp++) = cpu_to_le32(0 ); /* bits 63-32 */
}
/* sync instruction */
if (sync_line != NO_SYNC_LINE)
*(rp++) = cpu_to_le32(RISC_RESYNC | sync_line);
/* scan lines */
sg = sglist;
for (line = 0 ; line < lines; line++) {
while (offset && offset >= sg_dma_len(sg)) {
offset -= sg_dma_len(sg);
sg = sg_next(sg);
}
if (lpi && line > 0 && !(line % lpi))
sol = RISC_SOL | RISC_IRQ1 | RISC_CNT_INC;
else
sol = RISC_SOL;
if (bpl <= sg_dma_len(sg)-offset) {
/* fits into current chunk */
*(rp++) = cpu_to_le32(RISC_WRITE|sol|RISC_EOL|bpl);
*(rp++) = cpu_to_le32(sg_dma_address(sg)+offset);
*(rp++) = cpu_to_le32(0 ); /* bits 63-32 */
offset += bpl;
} else {
/* scanline needs to be split */
todo = bpl;
*(rp++) = cpu_to_le32(RISC_WRITE|sol|
(sg_dma_len(sg)-offset));
*(rp++) = cpu_to_le32(sg_dma_address(sg)+offset);
*(rp++) = cpu_to_le32(0 ); /* bits 63-32 */
todo -= (sg_dma_len(sg)-offset);
offset = 0 ;
sg = sg_next(sg);
while (todo > sg_dma_len(sg)) {
*(rp++) = cpu_to_le32(RISC_WRITE|
sg_dma_len(sg));
*(rp++) = cpu_to_le32(sg_dma_address(sg));
*(rp++) = cpu_to_le32(0 ); /* bits 63-32 */
todo -= sg_dma_len(sg);
sg = sg_next(sg);
}
*(rp++) = cpu_to_le32(RISC_WRITE|RISC_EOL|todo);
*(rp++) = cpu_to_le32(sg_dma_address(sg));
*(rp++) = cpu_to_le32(0 ); /* bits 63-32 */
offset += todo;
}
offset += padding;
}
return rp;
}
int cx23885_risc_buffer(struct pci_dev *pci, struct cx23885_riscmem *risc,
struct scatterlist *sglist, unsigned int top_offset,
unsigned int bottom_offset, unsigned int bpl,
unsigned int padding, unsigned int lines)
{
u32 instructions, fields;
__le32 *rp;
fields = 0 ;
if (UNSET != top_offset)
fields++;
if (UNSET != bottom_offset)
fields++;
/* estimate risc mem: worst case is one write per page border +
one write per scan line + syncs + jump ( all 2 dwords ) . Padding
can cause next bpl to start close to a page border . First DMA
region may be smaller than PAGE_SIZE */
/* write and jump need and extra dword */
instructions = fields * (1 + ((bpl + padding) * lines)
/ PAGE_SIZE + lines);
instructions += 5 ;
risc->size = instructions * 12 ;
risc->cpu = dma_alloc_coherent(&pci->dev, risc->size, &risc->dma,
GFP_KERNEL);
if (risc->cpu == NULL)
return -ENOMEM;
/* write risc instructions */
rp = risc->cpu;
if (UNSET != top_offset)
rp = cx23885_risc_field(rp, sglist, top_offset, 0 ,
bpl, padding, lines, 0 , true );
if (UNSET != bottom_offset)
rp = cx23885_risc_field(rp, sglist, bottom_offset, 0 x200,
bpl, padding, lines, 0 , UNSET == top_offset);
/* save pointer to jmp instruction address */
risc->jmp = rp;
BUG_ON((risc->jmp - risc->cpu + 2 ) * sizeof (*risc->cpu) > risc->size);
return 0 ;
}
int cx23885_risc_databuffer(struct pci_dev *pci,
struct cx23885_riscmem *risc,
struct scatterlist *sglist,
unsigned int bpl,
unsigned int lines, unsigned int lpi)
{
u32 instructions;
__le32 *rp;
/* estimate risc mem: worst case is one write per page border +
one write per scan line + syncs + jump ( all 2 dwords ) . Here
there is no padding and no sync . First DMA region may be smaller
than PAGE_SIZE */
/* Jump and write need an extra dword */
instructions = 1 + (bpl * lines) / PAGE_SIZE + lines;
instructions += 4 ;
risc->size = instructions * 12 ;
risc->cpu = dma_alloc_coherent(&pci->dev, risc->size, &risc->dma,
GFP_KERNEL);
if (risc->cpu == NULL)
return -ENOMEM;
/* write risc instructions */
rp = risc->cpu;
rp = cx23885_risc_field(rp, sglist, 0 , NO_SYNC_LINE,
bpl, 0 , lines, lpi, lpi == 0 );
/* save pointer to jmp instruction address */
risc->jmp = rp;
BUG_ON((risc->jmp - risc->cpu + 2 ) * sizeof (*risc->cpu) > risc->size);
return 0 ;
}
int cx23885_risc_vbibuffer(struct pci_dev *pci, struct cx23885_riscmem *risc,
struct scatterlist *sglist, unsigned int top_offset,
unsigned int bottom_offset, unsigned int bpl,
unsigned int padding, unsigned int lines)
{
u32 instructions, fields;
__le32 *rp;
fields = 0 ;
if (UNSET != top_offset)
fields++;
if (UNSET != bottom_offset)
fields++;
/* estimate risc mem: worst case is one write per page border +
one write per scan line + syncs + jump ( all 2 dwords ) . Padding
can cause next bpl to start close to a page border . First DMA
region may be smaller than PAGE_SIZE */
/* write and jump need and extra dword */
instructions = fields * (1 + ((bpl + padding) * lines)
/ PAGE_SIZE + lines);
instructions += 5 ;
risc->size = instructions * 12 ;
risc->cpu = dma_alloc_coherent(&pci->dev, risc->size, &risc->dma,
GFP_KERNEL);
if (risc->cpu == NULL)
return -ENOMEM;
/* write risc instructions */
rp = risc->cpu;
/* Sync to line 6, so US CC line 21 will appear in line '12'
* in the userland vbi payload */
if (UNSET != top_offset)
rp = cx23885_risc_field(rp, sglist, top_offset, 0 ,
bpl, padding, lines, 0 , true );
if (UNSET != bottom_offset)
rp = cx23885_risc_field(rp, sglist, bottom_offset, 0 x200,
bpl, padding, lines, 0 , UNSET == top_offset);
/* save pointer to jmp instruction address */
risc->jmp = rp;
BUG_ON((risc->jmp - risc->cpu + 2 ) * sizeof (*risc->cpu) > risc->size);
return 0 ;
}
void cx23885_free_buffer(struct cx23885_dev *dev, struct cx23885_buffer *buf)
{
struct cx23885_riscmem *risc = &buf->risc;
if (risc->cpu)
dma_free_coherent(&dev->pci->dev, risc->size, risc->cpu, risc->dma);
memset(risc, 0 , sizeof (*risc));
}
static void cx23885_tsport_reg_dump(struct cx23885_tsport *port)
{
struct cx23885_dev *dev = port->dev;
dprintk(1 , "%s() Register Dump\n" , __func__);
dprintk(1 , "%s() DEV_CNTRL2 0x%08X\n" , __func__,
cx_read(DEV_CNTRL2));
dprintk(1 , "%s() PCI_INT_MSK 0x%08X\n" , __func__,
cx23885_irq_get_mask(dev));
dprintk(1 , "%s() AUD_INT_INT_MSK 0x%08X\n" , __func__,
cx_read(AUDIO_INT_INT_MSK));
dprintk(1 , "%s() AUD_INT_DMA_CTL 0x%08X\n" , __func__,
cx_read(AUD_INT_DMA_CTL));
dprintk(1 , "%s() AUD_EXT_INT_MSK 0x%08X\n" , __func__,
cx_read(AUDIO_EXT_INT_MSK));
dprintk(1 , "%s() AUD_EXT_DMA_CTL 0x%08X\n" , __func__,
cx_read(AUD_EXT_DMA_CTL));
dprintk(1 , "%s() PAD_CTRL 0x%08X\n" , __func__,
cx_read(PAD_CTRL));
dprintk(1 , "%s() ALT_PIN_OUT_SEL 0x%08X\n" , __func__,
cx_read(ALT_PIN_OUT_SEL));
dprintk(1 , "%s() GPIO2 0x%08X\n" , __func__,
cx_read(GPIO2));
dprintk(1 , "%s() gpcnt(0x%08X) 0x%08X\n" , __func__,
port->reg_gpcnt, cx_read(port->reg_gpcnt));
dprintk(1 , "%s() gpcnt_ctl(0x%08X) 0x%08x\n" , __func__,
port->reg_gpcnt_ctl, cx_read(port->reg_gpcnt_ctl));
dprintk(1 , "%s() dma_ctl(0x%08X) 0x%08x\n" , __func__,
port->reg_dma_ctl, cx_read(port->reg_dma_ctl));
if (port->reg_src_sel)
dprintk(1 , "%s() src_sel(0x%08X) 0x%08x\n" , __func__,
port->reg_src_sel, cx_read(port->reg_src_sel));
dprintk(1 , "%s() lngth(0x%08X) 0x%08x\n" , __func__,
port->reg_lngth, cx_read(port->reg_lngth));
dprintk(1 , "%s() hw_sop_ctrl(0x%08X) 0x%08x\n" , __func__,
port->reg_hw_sop_ctrl, cx_read(port->reg_hw_sop_ctrl));
dprintk(1 , "%s() gen_ctrl(0x%08X) 0x%08x\n" , __func__,
port->reg_gen_ctrl, cx_read(port->reg_gen_ctrl));
dprintk(1 , "%s() bd_pkt_status(0x%08X) 0x%08x\n" , __func__,
port->reg_bd_pkt_status, cx_read(port->reg_bd_pkt_status));
dprintk(1 , "%s() sop_status(0x%08X) 0x%08x\n" , __func__,
port->reg_sop_status, cx_read(port->reg_sop_status));
dprintk(1 , "%s() fifo_ovfl_stat(0x%08X) 0x%08x\n" , __func__,
port->reg_fifo_ovfl_stat, cx_read(port->reg_fifo_ovfl_stat));
dprintk(1 , "%s() vld_misc(0x%08X) 0x%08x\n" , __func__,
port->reg_vld_misc, cx_read(port->reg_vld_misc));
dprintk(1 , "%s() ts_clk_en(0x%08X) 0x%08x\n" , __func__,
port->reg_ts_clk_en, cx_read(port->reg_ts_clk_en));
dprintk(1 , "%s() ts_int_msk(0x%08X) 0x%08x\n" , __func__,
port->reg_ts_int_msk, cx_read(port->reg_ts_int_msk));
dprintk(1 , "%s() ts_int_status(0x%08X) 0x%08x\n" , __func__,
port->reg_ts_int_stat, cx_read(port->reg_ts_int_stat));
dprintk(1 , "%s() PCI_INT_STAT 0x%08X\n" , __func__,
cx_read(PCI_INT_STAT));
dprintk(1 , "%s() VID_B_INT_MSTAT 0x%08X\n" , __func__,
cx_read(VID_B_INT_MSTAT));
dprintk(1 , "%s() VID_B_INT_SSTAT 0x%08X\n" , __func__,
cx_read(VID_B_INT_SSTAT));
dprintk(1 , "%s() VID_C_INT_MSTAT 0x%08X\n" , __func__,
cx_read(VID_C_INT_MSTAT));
dprintk(1 , "%s() VID_C_INT_SSTAT 0x%08X\n" , __func__,
cx_read(VID_C_INT_SSTAT));
}
int cx23885_start_dma(struct cx23885_tsport *port,
struct cx23885_dmaqueue *q,
struct cx23885_buffer *buf)
{
struct cx23885_dev *dev = port->dev;
u32 reg;
dprintk(1 , "%s() w: %d, h: %d, f: %d\n" , __func__,
dev->width, dev->height, dev->field);
/* clear dma in progress */
cx23885_clear_bridge_error(dev);
/* Stop the fifo and risc engine for this port */
cx_clear(port->reg_dma_ctl, port->dma_ctl_val);
/* setup fifo + format */
cx23885_sram_channel_setup(dev,
&dev->sram_channels[port->sram_chno],
port->ts_packet_size, buf->risc.dma);
if (debug > 5 ) {
cx23885_sram_channel_dump(dev,
&dev->sram_channels[port->sram_chno]);
cx23885_risc_disasm(port, &buf->risc);
}
/* write TS length to chip */
cx_write(port->reg_lngth, port->ts_packet_size);
if ((!(cx23885_boards[dev->board].portb & CX23885_MPEG_DVB)) &&
(!(cx23885_boards[dev->board].portc & CX23885_MPEG_DVB))) {
pr_err("%s() Unsupported .portb/c (0x%08x)/(0x%08x)\n" ,
__func__,
cx23885_boards[dev->board].portb,
cx23885_boards[dev->board].portc);
return -EINVAL;
}
if (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER)
cx23885_av_clk(dev, 0 );
udelay(100 );
/* If the port supports SRC SELECT, configure it */
if (port->reg_src_sel)
cx_write(port->reg_src_sel, port->src_sel_val);
cx_write(port->reg_hw_sop_ctrl, port->hw_sop_ctrl_val);
cx_write(port->reg_ts_clk_en, port->ts_clk_en_val);
cx_write(port->reg_vld_misc, port->vld_misc_val);
cx_write(port->reg_gen_ctrl, port->gen_ctrl_val);
udelay(100 );
/* NOTE: this is 2 (reserved) for portb, does it matter? */
/* reset counter to zero */
cx_write(port->reg_gpcnt_ctl, 3 );
q->count = 0 ;
/* Set VIDB pins to input */
if (cx23885_boards[dev->board].portb == CX23885_MPEG_DVB) {
reg = cx_read(PAD_CTRL);
reg &= ~0 x3; /* Clear TS1_OE & TS1_SOP_OE */
cx_write(PAD_CTRL, reg);
}
/* Set VIDC pins to input */
if (cx23885_boards[dev->board].portc == CX23885_MPEG_DVB) {
reg = cx_read(PAD_CTRL);
reg &= ~0 x4; /* Clear TS2_SOP_OE */
cx_write(PAD_CTRL, reg);
}
if (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER) {
reg = cx_read(PAD_CTRL);
reg = reg & ~0 x1; /* Clear TS1_OE */
/* FIXME, bit 2 writing here is questionable */
/* set TS1_SOP_OE and TS1_OE_HI */
reg = reg | 0 xa;
cx_write(PAD_CTRL, reg);
/* Sets MOE_CLK_DIS to disable MoE clock */
/* sets MCLK_DLY_SEL/BCLK_DLY_SEL to 1 buffer delay each */
cx_write(CLK_DELAY, cx_read(CLK_DELAY) | 0 x80000011);
/* ALT_GPIO_ALT_SET: GPIO[0]
* IR_ALT_TX_SEL : GPIO [ 1 ]
* GPIO1_ALT_SEL : VIP_656_DATA [ 0 ]
* GPIO0_ALT_SEL : VIP_656_CLK
*/
cx_write(ALT_PIN_OUT_SEL, 0 x10100045);
}
switch (dev->bridge) {
case CX23885_BRIDGE_885:
case CX23885_BRIDGE_887:
case CX23885_BRIDGE_888:
/* enable irqs */
dprintk(1 , "%s() enabling TS int's and DMA\n" , __func__);
/* clear dma in progress */
cx23885_clear_bridge_error(dev);
cx_set(port->reg_ts_int_msk, port->ts_int_msk_val);
cx_set(port->reg_dma_ctl, port->dma_ctl_val);
/* clear dma in progress */
cx23885_clear_bridge_error(dev);
cx23885_irq_add(dev, port->pci_irqmask);
cx23885_irq_enable_all(dev);
/* clear dma in progress */
cx23885_clear_bridge_error(dev);
break ;
default :
BUG();
}
cx_set(DEV_CNTRL2, (1 <<5 )); /* Enable RISC controller */
/* clear dma in progress */
cx23885_clear_bridge_error(dev);
if (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER)
cx23885_av_clk(dev, 1 );
if (debug > 4 )
cx23885_tsport_reg_dump(port);
cx23885_irq_get_mask(dev);
/* clear dma in progress */
cx23885_clear_bridge_error(dev);
return 0 ;
}
static int cx23885_stop_dma(struct cx23885_tsport *port)
{
struct cx23885_dev *dev = port->dev;
u32 reg;
int delay = 0 ;
uint32_t reg1_val;
uint32_t reg2_val;
dprintk(1 , "%s()\n" , __func__);
/* Stop interrupts and DMA */
cx_clear(port->reg_ts_int_msk, port->ts_int_msk_val);
cx_clear(port->reg_dma_ctl, port->dma_ctl_val);
/* just in case wait for any dma to complete before allowing dealloc */
mdelay(20 );
for (delay = 0 ; delay < 100 ; delay++) {
reg1_val = cx_read(TC_REQ);
reg2_val = cx_read(TC_REQ_SET);
if (reg1_val == 0 || reg2_val == 0 )
break ;
mdelay(1 );
}
dev_dbg(&dev->pci->dev, "delay=%d reg1=0x%08x reg2=0x%08x\n" ,
delay, reg1_val, reg2_val);
if (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER) {
reg = cx_read(PAD_CTRL);
/* Set TS1_OE */
reg = reg | 0 x1;
/* clear TS1_SOP_OE and TS1_OE_HI */
reg = reg & ~0 xa;
cx_write(PAD_CTRL, reg);
cx_write(port->reg_src_sel, 0 );
cx_write(port->reg_gen_ctrl, 8 );
}
if (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER)
cx23885_av_clk(dev, 0 );
return 0 ;
}
/* ------------------------------------------------------------------ */
int cx23885_buf_prepare(struct cx23885_buffer *buf, struct cx23885_tsport *port)
{
struct cx23885_dev *dev = port->dev;
int size = port->ts_packet_size * port->ts_packet_count;
struct sg_table *sgt = vb2_dma_sg_plane_desc(&buf->vb.vb2_buf, 0 );
dprintk(1 , "%s: %p\n" , __func__, buf);
if (vb2_plane_size(&buf->vb.vb2_buf, 0 ) < size)
return -EINVAL;
vb2_set_plane_payload(&buf->vb.vb2_buf, 0 , size);
cx23885_risc_databuffer(dev->pci, &buf->risc,
sgt->sgl,
port->ts_packet_size, port->ts_packet_count, 0 );
return 0 ;
}
/*
* The risc program for each buffer works as follows : it starts with a simple
* ' JUMP to addr + 12 ' , which is effectively a NOP . Then the code to DMA the
* buffer follows and at the end we have a JUMP back to the start + 12 ( skipping
* the initial JUMP ) .
*
* This is the risc program of the first buffer to be queued if the active list
* is empty and it just keeps DMAing this buffer without generating any
* interrupts .
*
* If a new buffer is added then the initial JUMP in the code for that buffer
* will generate an interrupt which signals that the previous buffer has been
* DMAed successfully and that it can be returned to userspace .
*
* It also sets the final jump of the previous buffer to the start of the new
* buffer , thus chaining the new buffer into the DMA chain . This is a single
* atomic u32 write , so there is no race condition .
*
* The end - result of all this that you only get an interrupt when a buffer
* is ready , so the control flow is very easy .
*/
void cx23885_buf_queue(struct cx23885_tsport *port, struct cx23885_buffer *buf)
{
struct cx23885_buffer *prev;
struct cx23885_dev *dev = port->dev;
struct cx23885_dmaqueue *cx88q = &port->mpegq;
unsigned long flags;
buf->risc.cpu[1 ] = cpu_to_le32(buf->risc.dma + 12 );
buf->risc.jmp[0 ] = cpu_to_le32(RISC_JUMP | RISC_CNT_INC);
buf->risc.jmp[1 ] = cpu_to_le32(buf->risc.dma + 12 );
buf->risc.jmp[2 ] = cpu_to_le32(0 ); /* bits 63-32 */
spin_lock_irqsave(&dev->slock, flags);
if (list_empty(&cx88q->active)) {
list_add_tail(&buf->queue, &cx88q->active);
dprintk(1 , "[%p/%d] %s - first active\n" ,
buf, buf->vb.vb2_buf.index, __func__);
} else {
buf->risc.cpu[0 ] |= cpu_to_le32(RISC_IRQ1);
prev = list_entry(cx88q->active.prev, struct cx23885_buffer,
queue);
list_add_tail(&buf->queue, &cx88q->active);
prev->risc.jmp[1 ] = cpu_to_le32(buf->risc.dma);
dprintk(1 , "[%p/%d] %s - append to active\n" ,
buf, buf->vb.vb2_buf.index, __func__);
}
spin_unlock_irqrestore(&dev->slock, flags);
}
/* ----------------------------------------------------------- */
static void do_cancel_buffers(struct cx23885_tsport *port, char *reason)
{
struct cx23885_dmaqueue *q = &port->mpegq;
struct cx23885_buffer *buf;
unsigned long flags;
spin_lock_irqsave(&port->slock, flags);
while (!list_empty(&q->active)) {
buf = list_entry(q->active.next, struct cx23885_buffer,
queue);
list_del(&buf->queue);
vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
dprintk(1 , "[%p/%d] %s - dma=0x%08lx\n" ,
buf, buf->vb.vb2_buf.index, reason,
(unsigned long )buf->risc.dma);
}
spin_unlock_irqrestore(&port->slock, flags);
}
void cx23885_cancel_buffers(struct cx23885_tsport *port)
{
dprintk(1 , "%s()\n" , __func__);
cx23885_stop_dma(port);
do_cancel_buffers(port, "cancel" );
}
int cx23885_irq_417(struct cx23885_dev *dev, u32 status)
{
/* FIXME: port1 assumption here. */
struct cx23885_tsport *port = &dev->ts1;
int count = 0 ;
int handled = 0 ;
if (status == 0 )
return handled;
count = cx_read(port->reg_gpcnt);
dprintk(7 , "status: 0x%08x mask: 0x%08x count: 0x%x\n" ,
status, cx_read(port->reg_ts_int_msk), count);
if ((status & VID_B_MSK_BAD_PKT) ||
(status & VID_B_MSK_OPC_ERR) ||
(status & VID_B_MSK_VBI_OPC_ERR) ||
(status & VID_B_MSK_SYNC) ||
(status & VID_B_MSK_VBI_SYNC) ||
(status & VID_B_MSK_OF) ||
(status & VID_B_MSK_VBI_OF)) {
pr_err("%s: V4L mpeg risc op code error, status = 0x%x\n" ,
dev->name, status);
if (status & VID_B_MSK_BAD_PKT)
dprintk(1 , " VID_B_MSK_BAD_PKT\n" );
if (status & VID_B_MSK_OPC_ERR)
dprintk(1 , " VID_B_MSK_OPC_ERR\n" );
if (status & VID_B_MSK_VBI_OPC_ERR)
dprintk(1 , " VID_B_MSK_VBI_OPC_ERR\n" );
if (status & VID_B_MSK_SYNC)
dprintk(1 , " VID_B_MSK_SYNC\n" );
if (status & VID_B_MSK_VBI_SYNC)
dprintk(1 , " VID_B_MSK_VBI_SYNC\n" );
if (status & VID_B_MSK_OF)
dprintk(1 , " VID_B_MSK_OF\n" );
if (status & VID_B_MSK_VBI_OF)
dprintk(1 , " VID_B_MSK_VBI_OF\n" );
cx_clear(port->reg_dma_ctl, port->dma_ctl_val);
cx23885_sram_channel_dump(dev,
&dev->sram_channels[port->sram_chno]);
cx23885_417_check_encoder(dev);
} else if (status & VID_B_MSK_RISCI1) {
dprintk(7 , " VID_B_MSK_RISCI1\n" );
spin_lock(&port->slock);
cx23885_wakeup(port, &port->mpegq, count);
spin_unlock(&port->slock);
}
if (status) {
cx_write(port->reg_ts_int_stat, status);
handled = 1 ;
}
return handled;
}
static int cx23885_irq_ts(struct cx23885_tsport *port, u32 status)
{
struct cx23885_dev *dev = port->dev;
int handled = 0 ;
u32 count;
if ((status & VID_BC_MSK_OPC_ERR) ||
(status & VID_BC_MSK_BAD_PKT) ||
(status & VID_BC_MSK_SYNC) ||
(status & VID_BC_MSK_OF)) {
if (status & VID_BC_MSK_OPC_ERR)
dprintk(7 , " (VID_BC_MSK_OPC_ERR 0x%08x)\n" ,
VID_BC_MSK_OPC_ERR);
if (status & VID_BC_MSK_BAD_PKT)
dprintk(7 , " (VID_BC_MSK_BAD_PKT 0x%08x)\n" ,
VID_BC_MSK_BAD_PKT);
if (status & VID_BC_MSK_SYNC)
dprintk(7 , " (VID_BC_MSK_SYNC 0x%08x)\n" ,
VID_BC_MSK_SYNC);
if (status & VID_BC_MSK_OF)
dprintk(7 , " (VID_BC_MSK_OF 0x%08x)\n" ,
VID_BC_MSK_OF);
pr_err("%s: mpeg risc op code error\n" , dev->name);
cx_clear(port->reg_dma_ctl, port->dma_ctl_val);
cx23885_sram_channel_dump(dev,
&dev->sram_channels[port->sram_chno]);
} else if (status & VID_BC_MSK_RISCI1) {
dprintk(7 , " (RISCI1 0x%08x)\n" , VID_BC_MSK_RISCI1);
spin_lock(&port->slock);
count = cx_read(port->reg_gpcnt);
cx23885_wakeup(port, &port->mpegq, count);
spin_unlock(&port->slock);
}
if (status) {
cx_write(port->reg_ts_int_stat, status);
handled = 1 ;
}
return handled;
}
static irqreturn_t cx23885_irq(int irq, void *dev_id)
{
struct cx23885_dev *dev = dev_id;
struct cx23885_tsport *ts1 = &dev->ts1;
struct cx23885_tsport *ts2 = &dev->ts2;
u32 pci_status, pci_mask;
u32 vida_status, vida_mask;
u32 audint_status, audint_mask;
u32 ts1_status, ts1_mask;
u32 ts2_status, ts2_mask;
int vida_count = 0 , ts1_count = 0 , ts2_count = 0 , handled = 0 ;
int audint_count = 0 ;
bool subdev_handled;
pci_status = cx_read(PCI_INT_STAT);
pci_mask = cx23885_irq_get_mask(dev);
if ((pci_status & pci_mask) == 0 ) {
dprintk(7 , "pci_status: 0x%08x pci_mask: 0x%08x\n" ,
pci_status, pci_mask);
goto out;
}
vida_status = cx_read(VID_A_INT_STAT);
vida_mask = cx_read(VID_A_INT_MSK);
audint_status = cx_read(AUDIO_INT_INT_STAT);
audint_mask = cx_read(AUDIO_INT_INT_MSK);
ts1_status = cx_read(VID_B_INT_STAT);
ts1_mask = cx_read(VID_B_INT_MSK);
ts2_status = cx_read(VID_C_INT_STAT);
ts2_mask = cx_read(VID_C_INT_MSK);
if (((pci_status & pci_mask) == 0 ) &&
((ts2_status & ts2_mask) == 0 ) &&
((ts1_status & ts1_mask) == 0 ))
goto out;
vida_count = cx_read(VID_A_GPCNT);
audint_count = cx_read(AUD_INT_A_GPCNT);
ts1_count = cx_read(ts1->reg_gpcnt);
ts2_count = cx_read(ts2->reg_gpcnt);
dprintk(7 , "pci_status: 0x%08x pci_mask: 0x%08x\n" ,
pci_status, pci_mask);
dprintk(7 , "vida_status: 0x%08x vida_mask: 0x%08x count: 0x%x\n" ,
vida_status, vida_mask, vida_count);
dprintk(7 , "audint_status: 0x%08x audint_mask: 0x%08x count: 0x%x\n" ,
audint_status, audint_mask, audint_count);
dprintk(7 , "ts1_status: 0x%08x ts1_mask: 0x%08x count: 0x%x\n" ,
ts1_status, ts1_mask, ts1_count);
dprintk(7 , "ts2_status: 0x%08x ts2_mask: 0x%08x count: 0x%x\n" ,
ts2_status, ts2_mask, ts2_count);
if (pci_status & (PCI_MSK_RISC_RD | PCI_MSK_RISC_WR |
PCI_MSK_AL_RD | PCI_MSK_AL_WR | PCI_MSK_APB_DMA |
PCI_MSK_VID_C | PCI_MSK_VID_B | PCI_MSK_VID_A |
PCI_MSK_AUD_INT | PCI_MSK_AUD_EXT |
PCI_MSK_GPIO0 | PCI_MSK_GPIO1 |
PCI_MSK_AV_CORE | PCI_MSK_IR)) {
if (pci_status & PCI_MSK_RISC_RD)
dprintk(7 , " (PCI_MSK_RISC_RD 0x%08x)\n" ,
PCI_MSK_RISC_RD);
if (pci_status & PCI_MSK_RISC_WR)
dprintk(7 , " (PCI_MSK_RISC_WR 0x%08x)\n" ,
PCI_MSK_RISC_WR);
if (pci_status & PCI_MSK_AL_RD)
dprintk(7 , " (PCI_MSK_AL_RD 0x%08x)\n" ,
PCI_MSK_AL_RD);
if (pci_status & PCI_MSK_AL_WR)
dprintk(7 , " (PCI_MSK_AL_WR 0x%08x)\n" ,
PCI_MSK_AL_WR);
if (pci_status & PCI_MSK_APB_DMA)
dprintk(7 , " (PCI_MSK_APB_DMA 0x%08x)\n" ,
PCI_MSK_APB_DMA);
if (pci_status & PCI_MSK_VID_C)
dprintk(7 , " (PCI_MSK_VID_C 0x%08x)\n" ,
PCI_MSK_VID_C);
if (pci_status & PCI_MSK_VID_B)
dprintk(7 , " (PCI_MSK_VID_B 0x%08x)\n" ,
PCI_MSK_VID_B);
if (pci_status & PCI_MSK_VID_A)
dprintk(7 , " (PCI_MSK_VID_A 0x%08x)\n" ,
PCI_MSK_VID_A);
if (pci_status & PCI_MSK_AUD_INT)
dprintk(7 , " (PCI_MSK_AUD_INT 0x%08x)\n" ,
PCI_MSK_AUD_INT);
if (pci_status & PCI_MSK_AUD_EXT)
dprintk(7 , " (PCI_MSK_AUD_EXT 0x%08x)\n" ,
PCI_MSK_AUD_EXT);
if (pci_status & PCI_MSK_GPIO0)
dprintk(7 , " (PCI_MSK_GPIO0 0x%08x)\n" ,
PCI_MSK_GPIO0);
if (pci_status & PCI_MSK_GPIO1)
dprintk(7 , " (PCI_MSK_GPIO1 0x%08x)\n" ,
PCI_MSK_GPIO1);
if (pci_status & PCI_MSK_AV_CORE)
dprintk(7 , " (PCI_MSK_AV_CORE 0x%08x)\n" ,
PCI_MSK_AV_CORE);
if (pci_status & PCI_MSK_IR)
dprintk(7 , " (PCI_MSK_IR 0x%08x)\n" ,
PCI_MSK_IR);
}
if (cx23885_boards[dev->board].ci_type == 1 &&
(pci_status & (PCI_MSK_GPIO1 | PCI_MSK_GPIO0)))
handled += netup_ci_slot_status(dev, pci_status);
if (cx23885_boards[dev->board].ci_type == 2 &&
(pci_status & PCI_MSK_GPIO0))
handled += altera_ci_irq(dev);
if (ts1_status) {
if (cx23885_boards[dev->board].portb == CX23885_MPEG_DVB)
handled += cx23885_irq_ts(ts1, ts1_status);
else
if (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER)
handled += cx23885_irq_417(dev, ts1_status);
}
if (ts2_status) {
if (cx23885_boards[dev->board].portc == CX23885_MPEG_DVB)
handled += cx23885_irq_ts(ts2, ts2_status);
else
if (cx23885_boards[dev->board].portc == CX23885_MPEG_ENCODER)
handled += cx23885_irq_417(dev, ts2_status);
}
if (vida_status)
handled += cx23885_video_irq(dev, vida_status);
if (audint_status)
handled += cx23885_audio_irq(dev, audint_status, audint_mask);
if (pci_status & PCI_MSK_IR) {
subdev_handled = false ;
v4l2_subdev_call(dev->sd_ir, core, interrupt_service_routine,
pci_status, &subdev_handled);
if (subdev_handled)
handled++;
}
if ((pci_status & pci_mask) & PCI_MSK_AV_CORE) {
cx23885_irq_disable(dev, PCI_MSK_AV_CORE);
schedule_work(&dev->cx25840_work);
handled++;
}
if (handled)
cx_write(PCI_INT_STAT, pci_status & pci_mask);
out:
return IRQ_RETVAL(handled);
}
static void cx23885_v4l2_dev_notify(struct v4l2_subdev *sd,
unsigned int notification, void *arg)
{
struct cx23885_dev *dev;
if (sd == NULL)
return ;
dev = to_cx23885(sd->v4l2_dev);
switch (notification) {
case V4L2_SUBDEV_IR_RX_NOTIFY: /* Possibly called in an IRQ context */
if (sd == dev->sd_ir)
cx23885_ir_rx_v4l2_dev_notify(sd, *(u32 *)arg);
break ;
case V4L2_SUBDEV_IR_TX_NOTIFY: /* Possibly called in an IRQ context */
if (sd == dev->sd_ir)
cx23885_ir_tx_v4l2_dev_notify(sd, *(u32 *)arg);
break ;
}
}
static void cx23885_v4l2_dev_notify_init(struct cx23885_dev *dev)
{
INIT_WORK(&dev->cx25840_work, cx23885_av_work_handler);
INIT_WORK(&dev->ir_rx_work, cx23885_ir_rx_work_handler);
INIT_WORK(&dev->ir_tx_work, cx23885_ir_tx_work_handler);
dev->v4l2_dev.notify = cx23885_v4l2_dev_notify;
}
static inline int encoder_on_portb(struct cx23885_dev *dev)
{
return cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER;
}
static inline int encoder_on_portc(struct cx23885_dev *dev)
{
return cx23885_boards[dev->board].portc == CX23885_MPEG_ENCODER;
}
/* Mask represents 32 different GPIOs, GPIO's are split into multiple
* registers depending on the board configuration ( and whether the
* 417 encoder ( wi it ' s own GPIO ' s ) are present . Each GPIO bit will
* be pushed into the correct hardware register , regardless of the
* physical location . Certain registers are shared so we sanity check
* and report errors if we think we ' re tampering with a GPIo that might
* be assigned to the encoder ( and used for the host bus ) .
*
* GPIO 2 through 0 - On the cx23885 bridge
* GPIO 18 through 3 - On the cx23417 host bus interface
* GPIO 23 through 19 - On the cx25840 a / v core
*/
void cx23885_gpio_set(struct cx23885_dev *dev, u32 mask)
{
if (mask & 0 x7)
cx_set(GP0_IO, mask & 0 x7);
if (mask & 0 x0007fff8) {
if (encoder_on_portb(dev) || encoder_on_portc(dev))
pr_err("%s: Setting GPIO on encoder ports\n" ,
dev->name);
cx_set(MC417_RWD, (mask & 0 x0007fff8) >> 3 );
}
/* TODO: 23-19 */
if (mask & 0 x00f80000)
pr_info("%s: Unsupported\n" , dev->name);
}
void cx23885_gpio_clear(struct cx23885_dev *dev, u32 mask)
{
if (mask & 0 x00000007)
cx_clear(GP0_IO, mask & 0 x7);
if (mask & 0 x0007fff8) {
if (encoder_on_portb(dev) || encoder_on_portc(dev))
pr_err("%s: Clearing GPIO moving on encoder ports\n" ,
dev->name);
cx_clear(MC417_RWD, (mask & 0 x7fff8) >> 3 );
}
/* TODO: 23-19 */
if (mask & 0 x00f80000)
pr_info("%s: Unsupported\n" , dev->name);
}
u32 cx23885_gpio_get(struct cx23885_dev *dev, u32 mask)
{
if (mask & 0 x00000007)
return (cx_read(GP0_IO) >> 8 ) & mask & 0 x7;
if (mask & 0 x0007fff8) {
if (encoder_on_portb(dev) || encoder_on_portc(dev))
pr_err("%s: Reading GPIO moving on encoder ports\n" ,
dev->name);
return (cx_read(MC417_RWD) & ((mask & 0 x7fff8) >> 3 )) << 3 ;
}
/* TODO: 23-19 */
if (mask & 0 x00f80000)
pr_info("%s: Unsupported\n" , dev->name);
return 0 ;
}
void cx23885_gpio_enable(struct cx23885_dev *dev, u32 mask, int asoutput)
{
if ((mask & 0 x00000007) && asoutput)
cx_set(GP0_IO, (mask & 0 x7) << 16 );
else if ((mask & 0 x00000007) && !asoutput)
cx_clear(GP0_IO, (mask & 0 x7) << 16 );
if (mask & 0 x0007fff8) {
if (encoder_on_portb(dev) || encoder_on_portc(dev))
pr_err("%s: Enabling GPIO on encoder ports\n" ,
dev->name);
}
/* MC417_OEN is active low for output, write 1 for an input */
if ((mask & 0 x0007fff8) && asoutput)
cx_clear(MC417_OEN, (mask & 0 x7fff8) >> 3 );
else if ((mask & 0 x0007fff8) && !asoutput)
cx_set(MC417_OEN, (mask & 0 x7fff8) >> 3 );
/* TODO: 23-19 */
}
static struct {
int vendor, dev;
} const broken_dev_id[] = {
/* According with
* https : //openbenchmarking.org/system/1703021-RI-AMDZEN08075/Ryzen%207%201800X/lspci,
* 0 x1451 is PCI ID for the IOMMU found on Ryzen
*/
{ PCI_VENDOR_ID_AMD, 0 x1451 },
/* According to sudo lspci -nn,
* 0 x1423 is the PCI ID for the IOMMU found on Kaveri
*/
{ PCI_VENDOR_ID_AMD, 0 x1423 },
/* 0x1481 is the PCI ID for the IOMMU found on Starship/Matisse
*/
{ PCI_VENDOR_ID_AMD, 0 x1481 },
/* 0x1419 is the PCI ID for the IOMMU found on 15h (Models 10h-1fh) family
*/
{ PCI_VENDOR_ID_AMD, 0 x1419 },
/* 0x1631 is the PCI ID for the IOMMU found on Renoir/Cezanne
*/
{ PCI_VENDOR_ID_AMD, 0 x1631 },
/* 0x5a23 is the PCI ID for the IOMMU found on RD890S/RD990
*/
{ PCI_VENDOR_ID_ATI, 0 x5a23 },
};
static bool cx23885_does_need_dma_reset(void )
{
int i;
struct pci_dev *pdev = NULL;
if (dma_reset_workaround == 0 )
return false ;
else if (dma_reset_workaround == 2 )
return true ;
for (i = 0 ; i < ARRAY_SIZE(broken_dev_id); i++) {
pdev = pci_get_device(broken_dev_id[i].vendor,
broken_dev_id[i].dev, NULL);
if (pdev) {
pci_dev_put(pdev);
return true ;
}
}
return false ;
}
static int cx23885_initdev(struct pci_dev *pci_dev,
const struct pci_device_id *pci_id)
{
struct cx23885_dev *dev;
struct v4l2_ctrl_handler *hdl;
int err;
dev = kzalloc(sizeof (*dev), GFP_KERNEL);
if (NULL == dev)
return -ENOMEM;
dev->need_dma_reset = cx23885_does_need_dma_reset();
err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
if (err < 0 )
goto fail_free;
hdl = &dev->ctrl_handler;
v4l2_ctrl_handler_init(hdl, 6 );
if (hdl->error) {
err = hdl->error;
goto fail_ctrl;
}
dev->v4l2_dev.ctrl_handler = hdl;
/* Prepare to handle notifications from subdevices */
cx23885_v4l2_dev_notify_init(dev);
/* pci init */
dev->pci = pci_dev;
if (pci_enable_device(pci_dev)) {
err = -EIO;
goto fail_ctrl;
}
if (cx23885_dev_setup(dev) < 0 ) {
err = -EINVAL;
goto fail_ctrl;
}
/* print pci info */
dev->pci_rev = pci_dev->revision;
pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat);
pr_info("%s/0: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n" ,
dev->name,
pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
dev->pci_lat,
(unsigned long long )pci_resource_start(pci_dev, 0 ));
pci_set_master(pci_dev);
err = dma_set_mask(&pci_dev->dev, 0 xffffffff);
if (err) {
pr_err("%s/0: Oops: no 32bit PCI DMA ???\n" , dev->name);
goto fail_dma_set_mask;
}
err = request_irq(pci_dev->irq, cx23885_irq,
IRQF_SHARED, dev->name, dev);
if (err < 0 ) {
pr_err("%s: can't get IRQ %d\n" ,
dev->name, pci_dev->irq);
goto fail_dma_set_mask;
}
switch (dev->board) {
case CX23885_BOARD_NETUP_DUAL_DVBS2_CI:
cx23885_irq_add_enable(dev, PCI_MSK_GPIO1 | PCI_MSK_GPIO0);
break ;
case CX23885_BOARD_NETUP_DUAL_DVB_T_C_CI_RF:
cx23885_irq_add_enable(dev, PCI_MSK_GPIO0);
break ;
}
/*
* The CX2388 [ 58 ] IR controller can start firing interrupts when
* enabled , so these have to take place after the cx23885_irq ( ) handler
* is hooked up by the call to request_irq ( ) above .
*/
cx23885_ir_pci_int_enable(dev);
cx23885_input_init(dev);
return 0 ;
fail_dma_set_mask:
cx23885_dev_unregister(dev);
fail_ctrl:
v4l2_ctrl_handler_free(hdl);
v4l2_device_unregister(&dev->v4l2_dev);
fail_free:
kfree(dev);
return err;
}
static void cx23885_finidev(struct pci_dev *pci_dev)
{
struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
struct cx23885_dev *dev = to_cx23885(v4l2_dev);
cx23885_input_fini(dev);
cx23885_ir_fini(dev);
cx23885_shutdown(dev);
/* unregister stuff */
free_irq(pci_dev->irq, dev);
pci_disable_device(pci_dev);
cx23885_dev_unregister(dev);
v4l2_ctrl_handler_free(&dev->ctrl_handler);
v4l2_device_unregister(v4l2_dev);
kfree(dev);
}
static int __maybe_unused cx23885_suspend(struct device *dev_d)
{
struct pci_dev *pci_dev = to_pci_dev(dev_d);
struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
struct cx23885_dev *dev = to_cx23885(v4l2_dev);
cx23885_shutdown(dev);
return 0 ;
}
static int __maybe_unused cx23885_resume(struct device *dev_d)
{
struct pci_dev *pci_dev = to_pci_dev(dev_d);
struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
struct cx23885_dev *dev = to_cx23885(v4l2_dev);
cx23885_reset(dev);
return 0 ;
}
static const struct pci_device_id cx23885_pci_tbl[] = {
{
/* CX23885 */
.vendor = 0 x14f1,
.device = 0 x8852,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
}, {
/* CX23887 Rev 2 */
.vendor = 0 x14f1,
.device = 0 x8880,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
}, {
/* --- end of list --- */
}
};
MODULE_DEVICE_TABLE(pci, cx23885_pci_tbl);
static SIMPLE_DEV_PM_OPS(cx23885_pm_ops, cx23885_suspend, cx23885_resume);
static struct pci_driver cx23885_pci_driver = {
.name = "cx23885" ,
.id_table = cx23885_pci_tbl,
.probe = cx23885_initdev,
.remove = cx23885_finidev,
.driver.pm = &cx23885_pm_ops,
};
static int __init cx23885_init(void )
{
pr_info("cx23885 driver version %s loaded\n" ,
CX23885_VERSION);
return pci_register_driver(&cx23885_pci_driver);
}
static void __exit cx23885_fini(void )
{
pci_unregister_driver(&cx23885_pci_driver);
}
module_init(cx23885_init);
module_exit(cx23885_fini);
Messung V0.5 in Prozent C=95 H=91 G=92
¤ Dauer der Verarbeitung: 0.41 Sekunden
(vorverarbeitet am 2026-10-02)
¤
*© Formatika GbR, Deutschland