1 files changed, 83 insertions, 82 deletions

diff --git a/drivers/media/dvb/b2c2/flexcop-pci.c b/drivers/media/dvb/b2c2/flexcop-pci.c
index 76e37fd96bb6..227c0200b70a 100644
--- a/drivers/media/dvb/b2c2/flexcop-pci.c
+++ b/drivers/media/dvb/b2c2/flexcop-pci.c
@@ -1,9 +1,7 @@
 /*
- * This file is part of linux driver the digital TV devices equipped with B2C2 FlexcopII(b)/III
- *
- * flexcop-pci.c - covers the PCI part including DMA transfers.
- *
- * see flexcop.c for copyright information.
+ * Linux driver the digital TV devices equipped with B2C2 FlexcopII(b)/III
+ * flexcop-pci.c - covers the PCI part including DMA transfers
+ * see flexcop.c for copyright information
  */
 
 #define FC_LOG_PREFIX "flexcop-pci"
@@ -11,7 +9,8 @@
 
 static int enable_pid_filtering = 1;
 module_param(enable_pid_filtering, int, 0444);
-MODULE_PARM_DESC(enable_pid_filtering, "enable hardware pid filtering: supported values: 0 (fullts), 1");
+MODULE_PARM_DESC(enable_pid_filtering,
+        "enable hardware pid filtering: supported values: 0 (fullts), 1");
 
 static int irq_chk_intv = 100;
 module_param(irq_chk_intv, int, 0644);
@@ -26,17 +25,17 @@ MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ streaming watchdog.");
 #define DEBSTATUS " (debugging is not enabled)"
 #endif
 
-#define deb_info(args...)  dprintk(0x01,args)
-#define deb_reg(args...)   dprintk(0x02,args)
-#define deb_ts(args...)    dprintk(0x04,args)
-#define deb_irq(args...)   dprintk(0x08,args)
-#define deb_chk(args...)   dprintk(0x10,args)
+#define deb_info(args...) dprintk(0x01, args)
+#define deb_reg(args...) dprintk(0x02, args)
+#define deb_ts(args...) dprintk(0x04, args)
+#define deb_irq(args...) dprintk(0x08, args)
+#define deb_chk(args...) dprintk(0x10, args)
 
 static int debug;
 module_param(debug, int, 0644);
 MODULE_PARM_DESC(debug,
         "set debug level (1=info,2=regs,4=TS,8=irqdma,16=check (|-able))."
-         DEBSTATUS);
+        DEBSTATUS);
 
 #define DRIVER_VERSION "0.1"
 #define DRIVER_NAME "Technisat/B2C2 FlexCop II/IIb/III Digital TV PCI Driver"
@@ -51,30 +50,30 @@ struct flexcop_pci {
 
         void __iomem *io_mem;
         u32 irq;
-/* buffersize (at least for DMA1, need to be % 188 == 0,
- * this logic is required */
+        /* buffersize (at least for DMA1, need to be % 188 == 0,
+         * this logic is required */
 #define FC_DEFAULT_DMA1_BUFSIZE (1280 * 188)
 #define FC_DEFAULT_DMA2_BUFSIZE (10 * 188)
         struct flexcop_dma dma[2];
 
         int active_dma1_addr; /* 0 = addr0 of dma1; 1 = addr1 of dma1 */
-        u32 last_dma1_cur_pos; /* position of the pointer last time the timer/packet irq occured */
+        u32 last_dma1_cur_pos;
+        /* position of the pointer last time the timer/packet irq occured */
         int count;
         int count_prev;
         int stream_problem;
 
         spinlock_t irq_lock;
-
         unsigned long last_irq;
 
         struct delayed_work irq_check_work;
-
         struct flexcop_device *fc_dev;
 };
 
-static int lastwreg,lastwval,lastrreg,lastrval;
+static int lastwreg, lastwval, lastrreg, lastrval;
 
-static flexcop_ibi_value flexcop_pci_read_ibi_reg (struct flexcop_device *fc, flexcop_ibi_register r)
+static flexcop_ibi_value flexcop_pci_read_ibi_reg(struct flexcop_device *fc,
+                flexcop_ibi_register r)
 {
         struct flexcop_pci *fc_pci = fc->bus_specific;
         flexcop_ibi_value v;
@@ -82,19 +81,20 @@ static flexcop_ibi_value flexcop_pci_read_ibi_reg (struct flexcop_device *fc, fl
 
         if (lastrreg != r || lastrval != v.raw) {
                 lastrreg = r; lastrval = v.raw;
-                deb_reg("new rd: %3x: %08x\n",r,v.raw);
+                deb_reg("new rd: %3x: %08x\n", r, v.raw);
         }
 
         return v;
 }
 
-static int flexcop_pci_write_ibi_reg(struct flexcop_device *fc, flexcop_ibi_register r, flexcop_ibi_value v)
+static int flexcop_pci_write_ibi_reg(struct flexcop_device *fc,
+                flexcop_ibi_register r, flexcop_ibi_value v)
 {
         struct flexcop_pci *fc_pci = fc->bus_specific;
 
         if (lastwreg != r || lastwval != v.raw) {
                 lastwreg = r; lastwval = v.raw;
-                deb_reg("new wr: %3x: %08x\n",r,v.raw);
+                deb_reg("new wr: %3x: %08x\n", r, v.raw);
         }
 
         writel(v.raw, fc_pci->io_mem + r);
@@ -113,15 +113,16 @@ static void flexcop_pci_irq_check_work(struct work_struct *work)
                         deb_chk("no IRQ since the last check\n");
                         if (fc_pci->stream_problem++ == 3) {
                                 struct dvb_demux_feed *feed;
+                                deb_info("flexcop-pci: stream problem, resetting pid filter\n");
 
                                 spin_lock_irq(&fc->demux.lock);
                                 list_for_each_entry(feed, &fc->demux.feed_list,
-                                        list_head) {
+                                                list_head) {
                                         flexcop_pid_feed_control(fc, feed, 0);
                                 }
 
                                 list_for_each_entry(feed, &fc->demux.feed_list,
-                                        list_head) {
+                                                list_head) {
                                         flexcop_pid_feed_control(fc, feed, 1);
                                 }
                                 spin_unlock_irq(&fc->demux.lock);
@@ -149,11 +150,10 @@ static irqreturn_t flexcop_pci_isr(int irq, void *dev_id)
         flexcop_ibi_value v;
         irqreturn_t ret = IRQ_HANDLED;
 
-        spin_lock_irqsave(&fc_pci->irq_lock,flags);
-
-        v = fc->read_ibi_reg(fc,irq_20c);
+        spin_lock_irqsave(&fc_pci->irq_lock, flags);
+        v = fc->read_ibi_reg(fc, irq_20c);
 
-   /* errors */
+        /* errors */
         if (v.irq_20c.Data_receiver_error)
                 deb_chk("data receiver error\n");
         if (v.irq_20c.Continuity_error_flag)
@@ -164,24 +164,29 @@ static irqreturn_t flexcop_pci_isr(int irq, void *dev_id)
                 deb_chk("Transport error\n");
 
         if ((fc_pci->count % 1000) == 0)
-                deb_chk("%d valid irq took place so far\n",fc_pci->count);
+                deb_chk("%d valid irq took place so far\n", fc_pci->count);
 
         if (v.irq_20c.DMA1_IRQ_Status == 1) {
                 if (fc_pci->active_dma1_addr == 0)
-                        flexcop_pass_dmx_packets(fc_pci->fc_dev,fc_pci->dma[0].cpu_addr0,fc_pci->dma[0].size / 188);
+                        flexcop_pass_dmx_packets(fc_pci->fc_dev,
+                                        fc_pci->dma[0].cpu_addr0,
+                                        fc_pci->dma[0].size / 188);
                 else
-                        flexcop_pass_dmx_packets(fc_pci->fc_dev,fc_pci->dma[0].cpu_addr1,fc_pci->dma[0].size / 188);
+                        flexcop_pass_dmx_packets(fc_pci->fc_dev,
+                                        fc_pci->dma[0].cpu_addr1,
+                                        fc_pci->dma[0].size / 188);
 
                 deb_irq("page change to page: %d\n",!fc_pci->active_dma1_addr);
                 fc_pci->active_dma1_addr = !fc_pci->active_dma1_addr;
-        } else if (v.irq_20c.DMA1_Timer_Status == 1) {
                 /* for the timer IRQ we only can use buffer dmx feeding, because we don't have
                  * complete TS packets when reading from the DMA memory */
+        } else if (v.irq_20c.DMA1_Timer_Status == 1) {
                 dma_addr_t cur_addr =
                         fc->read_ibi_reg(fc,dma1_008).dma_0x8.dma_cur_addr << 2;
                 u32 cur_pos = cur_addr - fc_pci->dma[0].dma_addr0;
 
-                deb_irq("%u irq: %08x cur_addr: %llx: cur_pos: %08x, last_cur_pos: %08x ",
+                deb_irq("%u irq: %08x cur_addr: %llx: cur_pos: %08x, "
+                        "last_cur_pos: %08x ",
                                 jiffies_to_usecs(jiffies - fc_pci->last_irq),
                                 v.raw, (unsigned long long)cur_addr, cur_pos,
                                 fc_pci->last_dma1_cur_pos);
@@ -191,30 +196,36 @@ static irqreturn_t flexcop_pci_isr(int irq, void *dev_id)
                  * pass the data from last_cur_pos to the buffer end to the demux
                  */
                 if (cur_pos < fc_pci->last_dma1_cur_pos) {
-                        deb_irq(" end was reached: passing %d bytes ",(fc_pci->dma[0].size*2 - 1) - fc_pci->last_dma1_cur_pos);
+                        deb_irq(" end was reached: passing %d bytes ",
+                                (fc_pci->dma[0].size*2 - 1) -
+                                fc_pci->last_dma1_cur_pos);
                         flexcop_pass_dmx_data(fc_pci->fc_dev,
-                                        fc_pci->dma[0].cpu_addr0 + fc_pci->last_dma1_cur_pos,
-                                        (fc_pci->dma[0].size*2) - fc_pci->last_dma1_cur_pos);
+                                fc_pci->dma[0].cpu_addr0 +
+                                        fc_pci->last_dma1_cur_pos,
+                                (fc_pci->dma[0].size*2) -
+                                        fc_pci->last_dma1_cur_pos);
                         fc_pci->last_dma1_cur_pos = 0;
                 }
 
                 if (cur_pos > fc_pci->last_dma1_cur_pos) {
-                        deb_irq(" passing %d bytes ",cur_pos - fc_pci->last_dma1_cur_pos);
+                        deb_irq(" passing %d bytes ",
+                                cur_pos - fc_pci->last_dma1_cur_pos);
                         flexcop_pass_dmx_data(fc_pci->fc_dev,
-                                        fc_pci->dma[0].cpu_addr0 + fc_pci->last_dma1_cur_pos,
-                                        cur_pos - fc_pci->last_dma1_cur_pos);
+                                fc_pci->dma[0].cpu_addr0 +
+                                        fc_pci->last_dma1_cur_pos,
+                                cur_pos - fc_pci->last_dma1_cur_pos);
                 }
                 deb_irq("\n");
 
                 fc_pci->last_dma1_cur_pos = cur_pos;
                 fc_pci->count++;
         } else {
-                deb_irq("isr for flexcop called, apparently without reason (%08x)\n",v.raw);
+                deb_irq("isr for flexcop called, "
+                        "apparently without reason (%08x)\n", v.raw);
                 ret = IRQ_NONE;
         }
 
-        spin_unlock_irqrestore(&fc_pci->irq_lock,flags);
-
+        spin_unlock_irqrestore(&fc_pci->irq_lock, flags);
         return ret;
 }
 
@@ -222,52 +233,48 @@ static int flexcop_pci_stream_control(struct flexcop_device *fc, int onoff)
 {
         struct flexcop_pci *fc_pci = fc->bus_specific;
         if (onoff) {
-                flexcop_dma_config(fc,&fc_pci->dma[0],FC_DMA_1);
-                flexcop_dma_config(fc,&fc_pci->dma[1],FC_DMA_2);
-
-                flexcop_dma_config_timer(fc,FC_DMA_1,0);
-
-                flexcop_dma_xfer_control(fc,FC_DMA_1,FC_DMA_SUBADDR_0 | FC_DMA_SUBADDR_1,1);
+                flexcop_dma_config(fc, &fc_pci->dma[0], FC_DMA_1);
+                flexcop_dma_config(fc, &fc_pci->dma[1], FC_DMA_2);
+                flexcop_dma_config_timer(fc, FC_DMA_1, 0);
+                flexcop_dma_xfer_control(fc, FC_DMA_1,
+                                FC_DMA_SUBADDR_0 | FC_DMA_SUBADDR_1, 1);
                 deb_irq("DMA xfer enabled\n");
 
                 fc_pci->last_dma1_cur_pos = 0;
-                flexcop_dma_control_timer_irq(fc,FC_DMA_1,1);
+                flexcop_dma_control_timer_irq(fc, FC_DMA_1, 1);
                 deb_irq("IRQ enabled\n");
-
                 fc_pci->count_prev = fc_pci->count;
-
-//              fc_pci->active_dma1_addr = 0;
-//              flexcop_dma_control_size_irq(fc,FC_DMA_1,1);
-
         } else {
-                flexcop_dma_control_timer_irq(fc,FC_DMA_1,0);
+                flexcop_dma_control_timer_irq(fc, FC_DMA_1, 0);
                 deb_irq("IRQ disabled\n");
 
-//              flexcop_dma_control_size_irq(fc,FC_DMA_1,0);
-
-                flexcop_dma_xfer_control(fc,FC_DMA_1,FC_DMA_SUBADDR_0 | FC_DMA_SUBADDR_1,0);
+                flexcop_dma_xfer_control(fc, FC_DMA_1,
+                         FC_DMA_SUBADDR_0 | FC_DMA_SUBADDR_1, 0);
                 deb_irq("DMA xfer disabled\n");
         }
-
         return 0;
 }
 
 static int flexcop_pci_dma_init(struct flexcop_pci *fc_pci)
 {
         int ret;
-        if ((ret = flexcop_dma_allocate(fc_pci->pdev,&fc_pci->dma[0],FC_DEFAULT_DMA1_BUFSIZE)) != 0)
+        ret = flexcop_dma_allocate(fc_pci->pdev, &fc_pci->dma[0],
+                        FC_DEFAULT_DMA1_BUFSIZE);
+        if (ret != 0)
                 return ret;
 
-        if ((ret = flexcop_dma_allocate(fc_pci->pdev,&fc_pci->dma[1],FC_DEFAULT_DMA2_BUFSIZE)) != 0) {
+        ret = flexcop_dma_allocate(fc_pci->pdev, &fc_pci->dma[1],
+                        FC_DEFAULT_DMA2_BUFSIZE);
+        if (ret != 0) {
                 flexcop_dma_free(&fc_pci->dma[0]);
                 return ret;
         }
 
-        flexcop_sram_set_dest(fc_pci->fc_dev,FC_SRAM_DEST_MEDIA | FC_SRAM_DEST_NET, FC_SRAM_DEST_TARGET_DMA1);
-        flexcop_sram_set_dest(fc_pci->fc_dev,FC_SRAM_DEST_CAO   | FC_SRAM_DEST_CAI, FC_SRAM_DEST_TARGET_DMA2);
-
+        flexcop_sram_set_dest(fc_pci->fc_dev, FC_SRAM_DEST_MEDIA |
+                        FC_SRAM_DEST_NET, FC_SRAM_DEST_TARGET_DMA1);
+        flexcop_sram_set_dest(fc_pci->fc_dev, FC_SRAM_DEST_CAO |
+                        FC_SRAM_DEST_CAI, FC_SRAM_DEST_TARGET_DMA2);
         fc_pci->init_state |= FC_PCI_DMA_INIT;
-
         return ret;
 }
 
@@ -290,12 +297,8 @@ static int flexcop_pci_init(struct flexcop_pci *fc_pci)
 
         if ((ret = pci_enable_device(fc_pci->pdev)) != 0)
                 return ret;
-
         pci_set_master(fc_pci->pdev);
 
-        /* enable interrupts */
-        // pci_write_config_dword(pdev, 0x6c, 0x8000);
-
         if ((ret = pci_request_regions(fc_pci->pdev, DRIVER_NAME)) != 0)
                 goto err_pci_disable_device;
 
@@ -338,8 +341,8 @@ static void flexcop_pci_exit(struct flexcop_pci *fc_pci)
         fc_pci->init_state &= ~FC_PCI_INIT;
 }
 
-
-static int flexcop_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+static int flexcop_pci_probe(struct pci_dev *pdev,
+                const struct pci_device_id *ent)
 {
         struct flexcop_device *fc;
         struct flexcop_pci *fc_pci;
@@ -350,7 +353,7 @@ static int flexcop_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
                 return -ENOMEM;
         }
 
-/* general flexcop init */
+        /* general flexcop init */
         fc_pci = fc->bus_specific;
         fc_pci->fc_dev = fc;
 
@@ -358,7 +361,6 @@ static int flexcop_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
         fc->write_ibi_reg = flexcop_pci_write_ibi_reg;
         fc->i2c_request = flexcop_i2c_request;
         fc->get_mac_addr = flexcop_eeprom_check_mac_addr;
-
         fc->stream_control = flexcop_pci_stream_control;
 
         if (enable_pid_filtering)
@@ -368,29 +370,29 @@ static int flexcop_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
 
         fc->pid_filtering = enable_pid_filtering;
         fc->bus_type = FC_PCI;
-
         fc->dev = &pdev->dev;
         fc->owner = THIS_MODULE;
 
-/* bus specific part */
+        /* bus specific part */
         fc_pci->pdev = pdev;
         if ((ret = flexcop_pci_init(fc_pci)) != 0)
                 goto err_kfree;
 
-/* init flexcop */
+        /* init flexcop */
         if ((ret = flexcop_device_initialize(fc)) != 0)
                 goto err_pci_exit;
 
-/* init dma */
+        /* init dma */
         if ((ret = flexcop_pci_dma_init(fc_pci)) != 0)
                 goto err_fc_exit;
 
         INIT_DELAYED_WORK(&fc_pci->irq_check_work, flexcop_pci_irq_check_work);
 
-                if (irq_chk_intv > 0)
-                        schedule_delayed_work(&fc_pci->irq_check_work,
-                msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv));
-
+        if (irq_chk_intv > 0)
+                schedule_delayed_work(&fc_pci->irq_check_work,
+                                msecs_to_jiffies(irq_chk_intv < 100 ?
+                                        100 :
+                                        irq_chk_intv));
         return ret;
 
 err_fc_exit:
@@ -420,7 +422,6 @@ static void flexcop_pci_remove(struct pci_dev *pdev)
 
 static struct pci_device_id flexcop_pci_tbl[] = {
         { PCI_DEVICE(0x13d0, 0x2103) },
-/*      { PCI_DEVICE(0x13d0, 0x2200) }, ? */
         { },
 };