From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- drivers/media/dvb/ttpci/budget-core.c | 480 ++++++++++++++++++++++++++++++++++ 1 file changed, 480 insertions(+) create mode 100644 drivers/media/dvb/ttpci/budget-core.c (limited to 'drivers/media/dvb/ttpci/budget-core.c') diff --git a/drivers/media/dvb/ttpci/budget-core.c b/drivers/media/dvb/ttpci/budget-core.c new file mode 100644 index 00000000000..93a9b40917e --- /dev/null +++ b/drivers/media/dvb/ttpci/budget-core.c @@ -0,0 +1,480 @@ +/* + * budget-core.c: driver for the SAA7146 based Budget DVB cards + * + * Compiled from various sources by Michael Hunold + * + * Copyright (C) 2002 Ralph Metzler + * + * Copyright (C) 1999-2002 Ralph Metzler + * & Marcus Metzler for convergence integrated media GmbH + * + * 26feb2004 Support for FS Activy Card (Grundig tuner) by + * Michael Dreher , + * Oliver Endriss , + * 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 + +#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"); -- cgit v1.2.3