apply patch by <emard@softhome.net> in order to support nova-patched av7110 cards

1 files changed, 52 insertions, 1 deletions

diff --git a/linux/drivers/media/dvb/ttpci-budget/budget-core.c b/linux/drivers/media/dvb/ttpci-budget/budget-core.c
index 72eee8b0c..dde4a5930 100644
--- a/linux/drivers/media/dvb/ttpci-budget/budget-core.c
+++ b/linux/drivers/media/dvb/ttpci-budget/budget-core.c
@@ -4,6 +4,7 @@
 #endif
 
 int budget_debug = 0;
+int budget_patch = 0;
 
 /****************************************************************************
  * General helper functions
@@ -387,7 +388,10 @@ int budget_attach (struct saa7146_dev* dev, struct saa7146_pci_extension_data *i
 	int pages = (length+PAGE_SIZE-1)/PAGE_SIZE;
 	int ret = 0;
 	struct budget_info *bi = info->ext_priv;
-	
+
+	if (bi->type == BUDGET_PATCH && budget_patch <= 0)
+		return -EOPNOTSUPP;
+
 	if (!(budget = kmalloc (sizeof (struct budget_s), GFP_KERNEL))) {
 		printk ("%s: out of memory!\n", __FUNCTION__);
 		return -ENOMEM;
@@ -412,6 +416,52 @@ int budget_attach (struct saa7146_dev* dev, struct saa7146_pci_extension_data *i
         saa7146_write(dev, GPIO_CTRL, 0x500000);
 	
 	saa7146_i2c_adapter_prepare(dev, NULL, SAA7146_I2C_BUS_BIT_RATE_3200);
+
+	if (budget->card->type == BUDGET_PATCH && budget_patch > 0)
+        {
+                int cnt;
+/*
+**              This code will setup the SAA7146_RPS1 to generate a square 
+**              wave on GPIO3, changing when a field (TS_HEIGHT/2 "lines" of 
+**              TS_WIDTH packets) has been acquired on SAA7146_D1B video port; 
+**              then, this GPIO3 output which is connected to the D1B_VSYNC 
+**              input, will trigger the acquisition of the alternate field 
+**              and so on.
+**              Currently, the TT_budget / WinTV_Nova cards have two ICs 
+**              (74HCT4040, LVC74) for the generation of this VSYNC signal, 
+**              which seems that can be done perfectly without this :-)).
+*/                                                      
+                cnt = 0;                                // Setup RPS1 "program" (p35)
+                // Wait Source Line Counter Threshold                           (p36)
+                dev->rps1[cnt++]=cpu_to_le32(CMD_PAUSE | EVT_HS);
+                // Set GPIO3=1                                                  (p42)
+                dev->rps1[cnt++]=cpu_to_le32(CMD_WR_REG_MASK | (GPIO_CTRL>>2));
+                dev->rps1[cnt++]=cpu_to_le32(GPIO3_MSK);
+                dev->rps1[cnt++]=cpu_to_le32(SAA7146_GPIO_OUTHI<<24);
+                // Wait reset Source Line Counter Threshold                     (p36)
+                dev->rps1[cnt++]=cpu_to_le32(CMD_PAUSE | RPS_INV | EVT_HS);
+                // Wait Source Line Counter Threshold
+                dev->rps1[cnt++]=cpu_to_le32(CMD_PAUSE | EVT_HS);
+                // Set GPIO3=0                                                  (p42)
+                dev->rps1[cnt++]=cpu_to_le32(CMD_WR_REG_MASK | (GPIO_CTRL>>2));
+                dev->rps1[cnt++]=cpu_to_le32(GPIO3_MSK);
+                dev->rps1[cnt++]=cpu_to_le32(SAA7146_GPIO_OUTLO<<24);
+                // Wait reset Source Line Counter Threshold                     (p36)
+                dev->rps1[cnt++]=cpu_to_le32(CMD_PAUSE | RPS_INV | EVT_HS);
+                // Jump to begin of RPS program                                 (p37)
+                dev->rps1[cnt++]=cpu_to_le32(CMD_JUMP);
+                dev->rps1[cnt++]=cpu_to_le32(virt_to_bus(&dev->rps1[0]));
+
+                // Fix VSYNC level
+                saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
+                // Set RPS1 Address register to point to RPS code               (r108 p42)
+                saa7146_write(dev, RPS_ADDR1, virt_to_bus(&dev->rps1[0]));
+                // Set Source Line Counter Threshold, using BRS                 (rCC p43)
+                saa7146_write(dev, RPS_THRESH1, ((TS_HEIGHT/2) | MASK_12));
+                // Enable RPS1                                                  (rFC p33)
+                saa7146_write(dev, MC1, (MASK_13 | MASK_29));
+        }
+
 	budget->i2c_bus = dvb_register_i2c_bus (master_xfer, dev, budget->dvb_adapter, 0);
 
 	if (!budget->i2c_bus) {
@@ -502,5 +552,6 @@ EXPORT_SYMBOL_GPL(budget_detach);
 EXPORT_SYMBOL_GPL(budget_debug);
 
 MODULE_PARM(budget_debug,"i");
+MODULE_PARM(budget_patch,"i");
 MODULE_LICENSE("GPL");