| /* |
| * budget-core.c: driver for the SAA7146 based Budget DVB cards |
| * |
| * Compiled from various sources by Michael Hunold <michael@mihu.de> |
| * |
| * Copyright (C) 2002 Ralph Metzler <rjkm@metzlerbros.de> |
| * |
| * Copyright (C) 1999-2002 Ralph Metzler |
| * & Marcus Metzler for convergence integrated media GmbH |
| * |
| * 26feb2004 Support for FS Activy Card (Grundig tuner) by |
| * Michael Dreher <michael@5dot1.de>, |
| * Oliver Endriss <o.endriss@gmx.de>, |
| * Andreas 'randy' Weinberger |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| * Or, point your browser to http://www.gnu.org/copyleft/gpl.html |
| * |
| * |
| * the project's page is at http://www.linuxtv.org/dvb/ |
| */ |
| |
| #include <linux/moduleparam.h> |
| |
| #include "budget.h" |
| #include "ttpci-eeprom.h" |
| |
| int budget_debug; |
| module_param_named(debug, budget_debug, int, 0644); |
| MODULE_PARM_DESC(debug, "Turn on/off budget debugging (default:off)."); |
| |
| /**************************************************************************** |
| * TT budget / WinTV Nova |
| ****************************************************************************/ |
| |
| static int stop_ts_capture(struct budget *budget) |
| { |
| dprintk(2, "budget: %p\n", budget); |
| |
| if (--budget->feeding) |
| return budget->feeding; |
| |
| saa7146_write(budget->dev, MC1, MASK_20); // DMA3 off |
| SAA7146_IER_DISABLE(budget->dev, MASK_10); |
| return 0; |
| } |
| |
| static int start_ts_capture(struct budget *budget) |
| { |
| struct saa7146_dev *dev = budget->dev; |
| |
| dprintk(2, "budget: %p\n", budget); |
| |
| if (budget->feeding) |
| return ++budget->feeding; |
| |
| saa7146_write(dev, MC1, MASK_20); // DMA3 off |
| |
| memset(budget->grabbing, 0x00, TS_HEIGHT * TS_WIDTH); |
| |
| saa7146_write(dev, PCI_BT_V1, 0x001c0000 | (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000)); |
| |
| budget->tsf = 0xff; |
| budget->ttbp = 0; |
| |
| /* |
| * Signal path on the Activy: |
| * |
| * tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory |
| * |
| * Since the tuner feeds 204 bytes packets into the SAA7146, |
| * DMA3 is configured to strip the trailing 16 FEC bytes: |
| * Pitch: 188, NumBytes3: 188, NumLines3: 1024 |
| */ |
| |
| switch(budget->card->type) { |
| case BUDGET_FS_ACTIVY: |
| saa7146_write(dev, DD1_INIT, 0x04000000); |
| saa7146_write(dev, MC2, (MASK_09 | MASK_25)); |
| saa7146_write(dev, BRS_CTRL, 0x00000000); |
| break; |
| case BUDGET_PATCH: |
| saa7146_write(dev, DD1_INIT, 0x00000200); |
| saa7146_write(dev, MC2, (MASK_10 | MASK_26)); |
| saa7146_write(dev, BRS_CTRL, 0x60000000); |
| break; |
| default: |
| if (budget->video_port == BUDGET_VIDEO_PORTA) { |
| saa7146_write(dev, DD1_INIT, 0x06000200); |
| saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26)); |
| saa7146_write(dev, BRS_CTRL, 0x00000000); |
| } else { |
| saa7146_write(dev, DD1_INIT, 0x02000600); |
| saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26)); |
| saa7146_write(dev, BRS_CTRL, 0x60000000); |
| } |
| } |
| |
| saa7146_write(dev, MC2, (MASK_08 | MASK_24)); |
| mdelay(10); |
| |
| saa7146_write(dev, BASE_ODD3, 0); |
| saa7146_write(dev, BASE_EVEN3, 0); |
| saa7146_write(dev, PROT_ADDR3, TS_WIDTH * TS_HEIGHT); |
| saa7146_write(dev, BASE_PAGE3, budget->pt.dma | ME1 | 0x90); |
| |
| if (budget->card->type == BUDGET_FS_ACTIVY) { |
| saa7146_write(dev, PITCH3, TS_WIDTH / 2); |
| saa7146_write(dev, NUM_LINE_BYTE3, ((TS_HEIGHT * 2) << 16) | (TS_WIDTH / 2)); |
| } else { |
| saa7146_write(dev, PITCH3, TS_WIDTH); |
| saa7146_write(dev, NUM_LINE_BYTE3, (TS_HEIGHT << 16) | TS_WIDTH); |
| } |
| |
| saa7146_write(dev, MC2, (MASK_04 | MASK_20)); |
| |
| SAA7146_ISR_CLEAR(budget->dev, MASK_10); /* VPE */ |
| SAA7146_IER_ENABLE(budget->dev, MASK_10); /* VPE */ |
| saa7146_write(dev, MC1, (MASK_04 | MASK_20)); /* DMA3 on */ |
| |
| return ++budget->feeding; |
| } |
| |
| static void vpeirq(unsigned long data) |
| { |
| struct budget *budget = (struct budget *) data; |
| u8 *mem = (u8 *) (budget->grabbing); |
| u32 olddma = budget->ttbp; |
| u32 newdma = saa7146_read(budget->dev, PCI_VDP3); |
| |
| /* nearest lower position divisible by 188 */ |
| newdma -= newdma % 188; |
| |
| if (newdma >= TS_BUFLEN) |
| return; |
| |
| budget->ttbp = newdma; |
| |
| if (budget->feeding == 0 || newdma == olddma) |
| return; |
| |
| if (newdma > olddma) { /* no wraparound, dump olddma..newdma */ |
| dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, (newdma - olddma) / 188); |
| } else { /* wraparound, dump olddma..buflen and 0..newdma */ |
| dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, (TS_BUFLEN - olddma) / 188); |
| dvb_dmx_swfilter_packets(&budget->demux, mem, newdma / 188); |
| } |
| } |
| |
| |
| int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count, |
| int uselocks, int nobusyloop) |
| { |
| struct saa7146_dev *saa = budget->dev; |
| int result = 0; |
| unsigned long flags = 0; |
| |
| if (count > 4 || count <= 0) |
| return 0; |
| |
| if (uselocks) |
| spin_lock_irqsave(&budget->debilock, flags); |
| |
| if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) { |
| if (uselocks) |
| spin_unlock_irqrestore(&budget->debilock, flags); |
| return result; |
| } |
| |
| saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x10000 | (addr & 0xffff)); |
| saa7146_write(saa, DEBI_CONFIG, config); |
| saa7146_write(saa, DEBI_PAGE, 0); |
| saa7146_write(saa, MC2, (2 << 16) | 2); |
| |
| if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) { |
| if (uselocks) |
| spin_unlock_irqrestore(&budget->debilock, flags); |
| return result; |
| } |
| |
| result = saa7146_read(saa, DEBI_AD); |
| result &= (0xffffffffUL >> ((4 - count) * 8)); |
| |
| if (uselocks) |
| spin_unlock_irqrestore(&budget->debilock, flags); |
| |
| return result; |
| } |
| |
| int ttpci_budget_debiwrite(struct budget *budget, u32 config, int addr, |
| int count, u32 value, int uselocks, int nobusyloop) |
| { |
| struct saa7146_dev *saa = budget->dev; |
| unsigned long flags = 0; |
| int result; |
| |
| if (count > 4 || count <= 0) |
| return 0; |
| |
| if (uselocks) |
| spin_lock_irqsave(&budget->debilock, flags); |
| |
| if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) { |
| if (uselocks) |
| spin_unlock_irqrestore(&budget->debilock, flags); |
| return result; |
| } |
| |
| saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x00000 | (addr & 0xffff)); |
| saa7146_write(saa, DEBI_CONFIG, config); |
| saa7146_write(saa, DEBI_PAGE, 0); |
| saa7146_write(saa, DEBI_AD, value); |
| saa7146_write(saa, MC2, (2 << 16) | 2); |
| |
| if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) { |
| if (uselocks) |
| spin_unlock_irqrestore(&budget->debilock, flags); |
| return result; |
| } |
| |
| if (uselocks) |
| spin_unlock_irqrestore(&budget->debilock, flags); |
| return 0; |
| } |
| |
| |
| /**************************************************************************** |
| * DVB API SECTION |
| ****************************************************************************/ |
| |
| static int budget_start_feed(struct dvb_demux_feed *feed) |
| { |
| struct dvb_demux *demux = feed->demux; |
| struct budget *budget = (struct budget *) demux->priv; |
| int status; |
| |
| dprintk(2, "budget: %p\n", budget); |
| |
| if (!demux->dmx.frontend) |
| return -EINVAL; |
| |
| spin_lock(&budget->feedlock); |
| feed->pusi_seen = 0; /* have a clean section start */ |
| status = start_ts_capture(budget); |
| spin_unlock(&budget->feedlock); |
| return status; |
| } |
| |
| static int budget_stop_feed(struct dvb_demux_feed *feed) |
| { |
| struct dvb_demux *demux = feed->demux; |
| struct budget *budget = (struct budget *) demux->priv; |
| int status; |
| |
| dprintk(2, "budget: %p\n", budget); |
| |
| spin_lock(&budget->feedlock); |
| status = stop_ts_capture(budget); |
| spin_unlock(&budget->feedlock); |
| return status; |
| } |
| |
| static int budget_register(struct budget *budget) |
| { |
| struct dvb_demux *dvbdemux = &budget->demux; |
| int ret; |
| |
| dprintk(2, "budget: %p\n", budget); |
| |
| dvbdemux->priv = (void *) budget; |
| |
| dvbdemux->filternum = 256; |
| dvbdemux->feednum = 256; |
| dvbdemux->start_feed = budget_start_feed; |
| dvbdemux->stop_feed = budget_stop_feed; |
| dvbdemux->write_to_decoder = NULL; |
| |
| dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING | |
| DMX_MEMORY_BASED_FILTERING); |
| |
| dvb_dmx_init(&budget->demux); |
| |
| budget->dmxdev.filternum = 256; |
| budget->dmxdev.demux = &dvbdemux->dmx; |
| budget->dmxdev.capabilities = 0; |
| |
| dvb_dmxdev_init(&budget->dmxdev, &budget->dvb_adapter); |
| |
| budget->hw_frontend.source = DMX_FRONTEND_0; |
| |
| ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend); |
| |
| if (ret < 0) |
| return ret; |
| |
| budget->mem_frontend.source = DMX_MEMORY_FE; |
| ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend); |
| if (ret < 0) |
| return ret; |
| |
| ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend); |
| if (ret < 0) |
| return ret; |
| |
| dvb_net_init(&budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx); |
| |
| return 0; |
| } |
| |
| static void budget_unregister(struct budget *budget) |
| { |
| struct dvb_demux *dvbdemux = &budget->demux; |
| |
| dprintk(2, "budget: %p\n", budget); |
| |
| dvb_net_release(&budget->dvb_net); |
| |
| dvbdemux->dmx.close(&dvbdemux->dmx); |
| dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->hw_frontend); |
| dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->mem_frontend); |
| |
| dvb_dmxdev_release(&budget->dmxdev); |
| dvb_dmx_release(&budget->demux); |
| } |
| |
| int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev, |
| struct saa7146_pci_extension_data *info, |
| struct module *owner) |
| { |
| int length = TS_WIDTH * TS_HEIGHT; |
| int ret = 0; |
| struct budget_info *bi = info->ext_priv; |
| |
| memset(budget, 0, sizeof(struct budget)); |
| |
| dprintk(2, "dev: %p, budget: %p\n", dev, budget); |
| |
| budget->card = bi; |
| budget->dev = (struct saa7146_dev *) dev; |
| |
| dvb_register_adapter(&budget->dvb_adapter, budget->card->name, owner); |
| |
| /* set dd1 stream a & b */ |
| saa7146_write(dev, DD1_STREAM_B, 0x00000000); |
| saa7146_write(dev, MC2, (MASK_09 | MASK_25)); |
| saa7146_write(dev, MC2, (MASK_10 | MASK_26)); |
| saa7146_write(dev, DD1_INIT, 0x02000000); |
| saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26)); |
| |
| if (bi->type != BUDGET_FS_ACTIVY) |
| budget->video_port = BUDGET_VIDEO_PORTB; |
| else |
| budget->video_port = BUDGET_VIDEO_PORTA; |
| spin_lock_init(&budget->feedlock); |
| spin_lock_init(&budget->debilock); |
| |
| /* the Siemens DVB needs this if you want to have the i2c chips |
| get recognized before the main driver is loaded */ |
| if (bi->type != BUDGET_FS_ACTIVY) |
| saa7146_write(dev, GPIO_CTRL, 0x500000); /* GPIO 3 = 1 */ |
| |
| #ifdef I2C_ADAP_CLASS_TV_DIGITAL |
| budget->i2c_adap.class = I2C_ADAP_CLASS_TV_DIGITAL; |
| #else |
| budget->i2c_adap.class = I2C_CLASS_TV_DIGITAL; |
| #endif |
| |
| strlcpy(budget->i2c_adap.name, budget->card->name, sizeof(budget->i2c_adap.name)); |
| |
| saa7146_i2c_adapter_prepare(dev, &budget->i2c_adap, SAA7146_I2C_BUS_BIT_RATE_120); |
| strcpy(budget->i2c_adap.name, budget->card->name); |
| |
| if (i2c_add_adapter(&budget->i2c_adap) < 0) { |
| dvb_unregister_adapter(&budget->dvb_adapter); |
| return -ENOMEM; |
| } |
| |
| ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter.proposed_mac); |
| |
| if (NULL == |
| (budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, length, &budget->pt))) { |
| ret = -ENOMEM; |
| goto err; |
| } |
| |
| saa7146_write(dev, PCI_BT_V1, 0x001c0000); |
| /* upload all */ |
| saa7146_write(dev, GPIO_CTRL, 0x000000); |
| |
| tasklet_init(&budget->vpe_tasklet, vpeirq, (unsigned long) budget); |
| |
| /* frontend power on */ |
| if (bi->type == BUDGET_FS_ACTIVY) |
| saa7146_setgpio(dev, 1, SAA7146_GPIO_OUTHI); |
| else |
| saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI); |
| |
| if (budget_register(budget) == 0) { |
| return 0; |
| } |
| err: |
| i2c_del_adapter(&budget->i2c_adap); |
| |
| vfree(budget->grabbing); |
| |
| dvb_unregister_adapter(&budget->dvb_adapter); |
| |
| return ret; |
| } |
| |
| int ttpci_budget_deinit(struct budget *budget) |
| { |
| struct saa7146_dev *dev = budget->dev; |
| |
| dprintk(2, "budget: %p\n", budget); |
| |
| budget_unregister(budget); |
| |
| i2c_del_adapter(&budget->i2c_adap); |
| |
| dvb_unregister_adapter(&budget->dvb_adapter); |
| |
| tasklet_kill(&budget->vpe_tasklet); |
| |
| saa7146_pgtable_free(dev->pci, &budget->pt); |
| |
| vfree(budget->grabbing); |
| |
| return 0; |
| } |
| |
| void ttpci_budget_irq10_handler(struct saa7146_dev *dev, u32 * isr) |
| { |
| struct budget *budget = (struct budget *) dev->ext_priv; |
| |
| dprintk(8, "dev: %p, budget: %p\n", dev, budget); |
| |
| if (*isr & MASK_10) |
| tasklet_schedule(&budget->vpe_tasklet); |
| } |
| |
| void ttpci_budget_set_video_port(struct saa7146_dev *dev, int video_port) |
| { |
| struct budget *budget = (struct budget *) dev->ext_priv; |
| |
| spin_lock(&budget->feedlock); |
| budget->video_port = video_port; |
| if (budget->feeding) { |
| int oldfeeding = budget->feeding; |
| budget->feeding = 1; |
| stop_ts_capture(budget); |
| start_ts_capture(budget); |
| budget->feeding = oldfeeding; |
| } |
| spin_unlock(&budget->feedlock); |
| } |
| |
| EXPORT_SYMBOL_GPL(ttpci_budget_debiread); |
| EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite); |
| EXPORT_SYMBOL_GPL(ttpci_budget_init); |
| EXPORT_SYMBOL_GPL(ttpci_budget_deinit); |
| EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler); |
| EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port); |
| EXPORT_SYMBOL_GPL(budget_debug); |
| |
| MODULE_LICENSE("GPL"); |