| /* |
| * bt878.c: part of the driver for the Pinnacle PCTV Sat DVB PCI card |
| * |
| * Copyright (C) 2002 Peter Hettkamp <peter.hettkamp@htp-tel.de> |
| * |
| * large parts based on the bttv driver |
| * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@metzlerbros.de) |
| * & Marcus Metzler (mocm@metzlerbros.de) |
| * (c) 1999,2000 Gerd Knorr <kraxel@goldbach.in-berlin.de> |
| * |
| * 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 |
| * |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/pci.h> |
| #include <asm/io.h> |
| #include <linux/ioport.h> |
| #include <asm/pgtable.h> |
| #include <asm/page.h> |
| #include <linux/types.h> |
| #include <linux/interrupt.h> |
| #include <linux/kmod.h> |
| #include <linux/vmalloc.h> |
| #include <linux/init.h> |
| |
| #include "dmxdev.h" |
| #include "dvbdev.h" |
| #include "bt878.h" |
| #include "dst_priv.h" |
| |
| |
| /**************************************/ |
| /* Miscellaneous utility definitions */ |
| /**************************************/ |
| |
| static unsigned int bt878_verbose = 1; |
| static unsigned int bt878_debug; |
| |
| module_param_named(verbose, bt878_verbose, int, 0444); |
| MODULE_PARM_DESC(verbose, |
| "verbose startup messages, default is 1 (yes)"); |
| module_param_named(debug, bt878_debug, int, 0644); |
| MODULE_PARM_DESC(debug, "Turn on/off debugging, default is 0 (off)."); |
| |
| int bt878_num; |
| struct bt878 bt878[BT878_MAX]; |
| |
| EXPORT_SYMBOL(bt878_num); |
| EXPORT_SYMBOL(bt878); |
| |
| #define btwrite(dat,adr) bmtwrite((dat), (bt->bt878_mem+(adr))) |
| #define btread(adr) bmtread(bt->bt878_mem+(adr)) |
| |
| #define btand(dat,adr) btwrite((dat) & btread(adr), adr) |
| #define btor(dat,adr) btwrite((dat) | btread(adr), adr) |
| #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr) |
| |
| #if defined(dprintk) |
| #undef dprintk |
| #endif |
| #define dprintk(fmt, arg...) \ |
| do { \ |
| if (bt878_debug) \ |
| printk(KERN_DEBUG fmt, ##arg); \ |
| } while (0) |
| |
| static void bt878_mem_free(struct bt878 *bt) |
| { |
| if (bt->buf_cpu) { |
| pci_free_consistent(bt->dev, bt->buf_size, bt->buf_cpu, |
| bt->buf_dma); |
| bt->buf_cpu = NULL; |
| } |
| |
| if (bt->risc_cpu) { |
| pci_free_consistent(bt->dev, bt->risc_size, bt->risc_cpu, |
| bt->risc_dma); |
| bt->risc_cpu = NULL; |
| } |
| } |
| |
| static int bt878_mem_alloc(struct bt878 *bt) |
| { |
| if (!bt->buf_cpu) { |
| bt->buf_size = 128 * 1024; |
| |
| bt->buf_cpu = pci_zalloc_consistent(bt->dev, bt->buf_size, |
| &bt->buf_dma); |
| if (!bt->buf_cpu) |
| return -ENOMEM; |
| } |
| |
| if (!bt->risc_cpu) { |
| bt->risc_size = PAGE_SIZE; |
| bt->risc_cpu = pci_zalloc_consistent(bt->dev, bt->risc_size, |
| &bt->risc_dma); |
| if (!bt->risc_cpu) { |
| bt878_mem_free(bt); |
| return -ENOMEM; |
| } |
| } |
| |
| return 0; |
| } |
| |
| /* RISC instructions */ |
| #define RISC_WRITE (0x01 << 28) |
| #define RISC_JUMP (0x07 << 28) |
| #define RISC_SYNC (0x08 << 28) |
| |
| /* RISC bits */ |
| #define RISC_WR_SOL (1 << 27) |
| #define RISC_WR_EOL (1 << 26) |
| #define RISC_IRQ (1 << 24) |
| #define RISC_STATUS(status) ((((~status) & 0x0F) << 20) | ((status & 0x0F) << 16)) |
| #define RISC_SYNC_RESYNC (1 << 15) |
| #define RISC_SYNC_FM1 0x06 |
| #define RISC_SYNC_VRO 0x0C |
| |
| #define RISC_FLUSH() bt->risc_pos = 0 |
| #define RISC_INSTR(instr) bt->risc_cpu[bt->risc_pos++] = cpu_to_le32(instr) |
| |
| static int bt878_make_risc(struct bt878 *bt) |
| { |
| bt->block_bytes = bt->buf_size >> 4; |
| bt->block_count = 1 << 4; |
| bt->line_bytes = bt->block_bytes; |
| bt->line_count = bt->block_count; |
| |
| while (bt->line_bytes > 4095) { |
| bt->line_bytes >>= 1; |
| bt->line_count <<= 1; |
| } |
| |
| if (bt->line_count > 255) { |
| printk(KERN_ERR "bt878: buffer size error!\n"); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| |
| static void bt878_risc_program(struct bt878 *bt, u32 op_sync_orin) |
| { |
| u32 buf_pos = 0; |
| u32 line; |
| |
| RISC_FLUSH(); |
| RISC_INSTR(RISC_SYNC | RISC_SYNC_FM1 | op_sync_orin); |
| RISC_INSTR(0); |
| |
| dprintk("bt878: risc len lines %u, bytes per line %u\n", |
| bt->line_count, bt->line_bytes); |
| for (line = 0; line < bt->line_count; line++) { |
| // At the beginning of every block we issue an IRQ with previous (finished) block number set |
| if (!(buf_pos % bt->block_bytes)) |
| RISC_INSTR(RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL | |
| RISC_IRQ | |
| RISC_STATUS(((buf_pos / |
| bt->block_bytes) + |
| (bt->block_count - |
| 1)) % |
| bt->block_count) | bt-> |
| line_bytes); |
| else |
| RISC_INSTR(RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL | |
| bt->line_bytes); |
| RISC_INSTR(bt->buf_dma + buf_pos); |
| buf_pos += bt->line_bytes; |
| } |
| |
| RISC_INSTR(RISC_SYNC | op_sync_orin | RISC_SYNC_VRO); |
| RISC_INSTR(0); |
| |
| RISC_INSTR(RISC_JUMP); |
| RISC_INSTR(bt->risc_dma); |
| |
| btwrite((bt->line_count << 16) | bt->line_bytes, BT878_APACK_LEN); |
| } |
| |
| /*****************************/ |
| /* Start/Stop grabbing funcs */ |
| /*****************************/ |
| |
| void bt878_start(struct bt878 *bt, u32 controlreg, u32 op_sync_orin, |
| u32 irq_err_ignore) |
| { |
| u32 int_mask; |
| |
| dprintk("bt878 debug: bt878_start (ctl=%8.8x)\n", controlreg); |
| /* complete the writing of the risc dma program now we have |
| * the card specifics |
| */ |
| bt878_risc_program(bt, op_sync_orin); |
| controlreg &= ~0x1f; |
| controlreg |= 0x1b; |
| |
| btwrite(bt->risc_dma, BT878_ARISC_START); |
| |
| /* original int mask had : |
| * 6 2 8 4 0 |
| * 1111 1111 1000 0000 0000 |
| * SCERR|OCERR|PABORT|RIPERR|FDSR|FTRGT|FBUS|RISCI |
| * Hacked for DST to: |
| * SCERR | OCERR | FDSR | FTRGT | FBUS | RISCI |
| */ |
| int_mask = BT878_ASCERR | BT878_AOCERR | BT878_APABORT | |
| BT878_ARIPERR | BT878_APPERR | BT878_AFDSR | BT878_AFTRGT | |
| BT878_AFBUS | BT878_ARISCI; |
| |
| |
| /* ignore pesky bits */ |
| int_mask &= ~irq_err_ignore; |
| |
| btwrite(int_mask, BT878_AINT_MASK); |
| btwrite(controlreg, BT878_AGPIO_DMA_CTL); |
| } |
| |
| void bt878_stop(struct bt878 *bt) |
| { |
| u32 stat; |
| int i = 0; |
| |
| dprintk("bt878 debug: bt878_stop\n"); |
| |
| btwrite(0, BT878_AINT_MASK); |
| btand(~0x13, BT878_AGPIO_DMA_CTL); |
| |
| do { |
| stat = btread(BT878_AINT_STAT); |
| if (!(stat & BT878_ARISC_EN)) |
| break; |
| i++; |
| } while (i < 500); |
| |
| dprintk("bt878(%d) debug: bt878_stop, i=%d, stat=0x%8.8x\n", |
| bt->nr, i, stat); |
| } |
| |
| EXPORT_SYMBOL(bt878_start); |
| EXPORT_SYMBOL(bt878_stop); |
| |
| /*****************************/ |
| /* Interrupt service routine */ |
| /*****************************/ |
| |
| static irqreturn_t bt878_irq(int irq, void *dev_id) |
| { |
| u32 stat, astat, mask; |
| int count; |
| struct bt878 *bt; |
| |
| bt = (struct bt878 *) dev_id; |
| |
| count = 0; |
| while (1) { |
| stat = btread(BT878_AINT_STAT); |
| mask = btread(BT878_AINT_MASK); |
| if (!(astat = (stat & mask))) |
| return IRQ_NONE; /* this interrupt is not for me */ |
| /* dprintk("bt878(%d) debug: irq count %d, stat 0x%8.8x, mask 0x%8.8x\n",bt->nr,count,stat,mask); */ |
| btwrite(astat, BT878_AINT_STAT); /* try to clear interrupt condition */ |
| |
| |
| if (astat & (BT878_ASCERR | BT878_AOCERR)) { |
| if (bt878_verbose) { |
| printk(KERN_INFO |
| "bt878(%d): irq%s%s risc_pc=%08x\n", |
| bt->nr, |
| (astat & BT878_ASCERR) ? " SCERR" : |
| "", |
| (astat & BT878_AOCERR) ? " OCERR" : |
| "", btread(BT878_ARISC_PC)); |
| } |
| } |
| if (astat & (BT878_APABORT | BT878_ARIPERR | BT878_APPERR)) { |
| if (bt878_verbose) { |
| printk(KERN_INFO |
| "bt878(%d): irq%s%s%s risc_pc=%08x\n", |
| bt->nr, |
| (astat & BT878_APABORT) ? " PABORT" : |
| "", |
| (astat & BT878_ARIPERR) ? " RIPERR" : |
| "", |
| (astat & BT878_APPERR) ? " PPERR" : |
| "", btread(BT878_ARISC_PC)); |
| } |
| } |
| if (astat & (BT878_AFDSR | BT878_AFTRGT | BT878_AFBUS)) { |
| if (bt878_verbose) { |
| printk(KERN_INFO |
| "bt878(%d): irq%s%s%s risc_pc=%08x\n", |
| bt->nr, |
| (astat & BT878_AFDSR) ? " FDSR" : "", |
| (astat & BT878_AFTRGT) ? " FTRGT" : |
| "", |
| (astat & BT878_AFBUS) ? " FBUS" : "", |
| btread(BT878_ARISC_PC)); |
| } |
| } |
| if (astat & BT878_ARISCI) { |
| bt->finished_block = (stat & BT878_ARISCS) >> 28; |
| tasklet_schedule(&bt->tasklet); |
| break; |
| } |
| count++; |
| if (count > 20) { |
| btwrite(0, BT878_AINT_MASK); |
| printk(KERN_ERR |
| "bt878(%d): IRQ lockup, cleared int mask\n", |
| bt->nr); |
| break; |
| } |
| } |
| return IRQ_HANDLED; |
| } |
| |
| int |
| bt878_device_control(struct bt878 *bt, unsigned int cmd, union dst_gpio_packet *mp) |
| { |
| int retval; |
| |
| retval = 0; |
| if (mutex_lock_interruptible(&bt->gpio_lock)) |
| return -ERESTARTSYS; |
| /* special gpio signal */ |
| switch (cmd) { |
| case DST_IG_ENABLE: |
| // dprintk("dvb_bt8xx: dst enable mask 0x%02x enb 0x%02x \n", mp->dstg.enb.mask, mp->dstg.enb.enable); |
| retval = bttv_gpio_enable(bt->bttv_nr, |
| mp->enb.mask, |
| mp->enb.enable); |
| break; |
| case DST_IG_WRITE: |
| // dprintk("dvb_bt8xx: dst write gpio mask 0x%02x out 0x%02x\n", mp->dstg.outp.mask, mp->dstg.outp.highvals); |
| retval = bttv_write_gpio(bt->bttv_nr, |
| mp->outp.mask, |
| mp->outp.highvals); |
| |
| break; |
| case DST_IG_READ: |
| /* read */ |
| retval = bttv_read_gpio(bt->bttv_nr, &mp->rd.value); |
| // dprintk("dvb_bt8xx: dst read gpio 0x%02x\n", (unsigned)mp->dstg.rd.value); |
| break; |
| case DST_IG_TS: |
| /* Set packet size */ |
| bt->TS_Size = mp->psize; |
| break; |
| |
| default: |
| retval = -EINVAL; |
| break; |
| } |
| mutex_unlock(&bt->gpio_lock); |
| return retval; |
| } |
| |
| EXPORT_SYMBOL(bt878_device_control); |
| |
| #define BROOKTREE_878_DEVICE(vend, dev, name) \ |
| { \ |
| .vendor = PCI_VENDOR_ID_BROOKTREE, \ |
| .device = PCI_DEVICE_ID_BROOKTREE_878, \ |
| .subvendor = (vend), .subdevice = (dev), \ |
| .driver_data = (unsigned long) name \ |
| } |
| |
| static struct pci_device_id bt878_pci_tbl[] = { |
| BROOKTREE_878_DEVICE(0x0071, 0x0101, "Nebula Electronics DigiTV"), |
| BROOKTREE_878_DEVICE(0x1461, 0x0761, "AverMedia AverTV DVB-T 761"), |
| BROOKTREE_878_DEVICE(0x11bd, 0x001c, "Pinnacle PCTV Sat"), |
| BROOKTREE_878_DEVICE(0x11bd, 0x0026, "Pinnacle PCTV SAT CI"), |
| BROOKTREE_878_DEVICE(0x1822, 0x0001, "Twinhan VisionPlus DVB"), |
| BROOKTREE_878_DEVICE(0x270f, 0xfc00, |
| "ChainTech digitop DST-1000 DVB-S"), |
| BROOKTREE_878_DEVICE(0x1461, 0x0771, "AVermedia AverTV DVB-T 771"), |
| BROOKTREE_878_DEVICE(0x18ac, 0xdb10, "DViCO FusionHDTV DVB-T Lite"), |
| BROOKTREE_878_DEVICE(0x18ac, 0xdb11, "Ultraview DVB-T Lite"), |
| BROOKTREE_878_DEVICE(0x18ac, 0xd500, "DViCO FusionHDTV 5 Lite"), |
| BROOKTREE_878_DEVICE(0x7063, 0x2000, "pcHDTV HD-2000 TV"), |
| BROOKTREE_878_DEVICE(0x1822, 0x0026, "DNTV Live! Mini"), |
| { } |
| }; |
| |
| MODULE_DEVICE_TABLE(pci, bt878_pci_tbl); |
| |
| static const char * card_name(const struct pci_device_id *id) |
| { |
| return id->driver_data ? (const char *)id->driver_data : "Unknown"; |
| } |
| |
| /***********************/ |
| /* PCI device handling */ |
| /***********************/ |
| |
| static int bt878_probe(struct pci_dev *dev, const struct pci_device_id *pci_id) |
| { |
| int result = 0; |
| unsigned char lat; |
| struct bt878 *bt; |
| #if defined(__powerpc__) |
| unsigned int cmd; |
| #endif |
| unsigned int cardid; |
| |
| printk(KERN_INFO "bt878: Bt878 AUDIO function found (%d).\n", |
| bt878_num); |
| if (bt878_num >= BT878_MAX) { |
| printk(KERN_ERR "bt878: Too many devices inserted\n"); |
| result = -ENOMEM; |
| goto fail0; |
| } |
| if (pci_enable_device(dev)) |
| return -EIO; |
| |
| cardid = dev->subsystem_device << 16; |
| cardid |= dev->subsystem_vendor; |
| |
| printk(KERN_INFO "%s: card id=[0x%x],[ %s ] has DVB functions.\n", |
| __func__, cardid, card_name(pci_id)); |
| |
| bt = &bt878[bt878_num]; |
| bt->dev = dev; |
| bt->nr = bt878_num; |
| bt->shutdown = 0; |
| |
| bt->id = dev->device; |
| bt->irq = dev->irq; |
| bt->bt878_adr = pci_resource_start(dev, 0); |
| if (!request_mem_region(pci_resource_start(dev, 0), |
| pci_resource_len(dev, 0), "bt878")) { |
| result = -EBUSY; |
| goto fail0; |
| } |
| |
| bt->revision = dev->revision; |
| pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); |
| |
| |
| printk(KERN_INFO "bt878(%d): Bt%x (rev %d) at %02x:%02x.%x, ", |
| bt878_num, bt->id, bt->revision, dev->bus->number, |
| PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn)); |
| printk("irq: %d, latency: %d, memory: 0x%lx\n", |
| bt->irq, lat, bt->bt878_adr); |
| |
| |
| #if defined(__powerpc__) |
| /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */ |
| /* response on cards with no firmware is not enabled by OF */ |
| pci_read_config_dword(dev, PCI_COMMAND, &cmd); |
| cmd = (cmd | PCI_COMMAND_MEMORY); |
| pci_write_config_dword(dev, PCI_COMMAND, cmd); |
| #endif |
| |
| #ifdef __sparc__ |
| bt->bt878_mem = (unsigned char *) bt->bt878_adr; |
| #else |
| bt->bt878_mem = ioremap(bt->bt878_adr, 0x1000); |
| #endif |
| |
| /* clear interrupt mask */ |
| btwrite(0, BT848_INT_MASK); |
| |
| result = request_irq(bt->irq, bt878_irq, |
| IRQF_SHARED, "bt878", (void *) bt); |
| if (result == -EINVAL) { |
| printk(KERN_ERR "bt878(%d): Bad irq number or handler\n", |
| bt878_num); |
| goto fail1; |
| } |
| if (result == -EBUSY) { |
| printk(KERN_ERR |
| "bt878(%d): IRQ %d busy, change your PnP config in BIOS\n", |
| bt878_num, bt->irq); |
| goto fail1; |
| } |
| if (result < 0) |
| goto fail1; |
| |
| pci_set_master(dev); |
| pci_set_drvdata(dev, bt); |
| |
| if ((result = bt878_mem_alloc(bt))) { |
| printk(KERN_ERR "bt878: failed to allocate memory!\n"); |
| goto fail2; |
| } |
| |
| bt878_make_risc(bt); |
| btwrite(0, BT878_AINT_MASK); |
| bt878_num++; |
| |
| return 0; |
| |
| fail2: |
| free_irq(bt->irq, bt); |
| fail1: |
| release_mem_region(pci_resource_start(bt->dev, 0), |
| pci_resource_len(bt->dev, 0)); |
| fail0: |
| pci_disable_device(dev); |
| return result; |
| } |
| |
| static void bt878_remove(struct pci_dev *pci_dev) |
| { |
| u8 command; |
| struct bt878 *bt = pci_get_drvdata(pci_dev); |
| |
| if (bt878_verbose) |
| printk(KERN_INFO "bt878(%d): unloading\n", bt->nr); |
| |
| /* turn off all capturing, DMA and IRQs */ |
| btand(~0x13, BT878_AGPIO_DMA_CTL); |
| |
| /* first disable interrupts before unmapping the memory! */ |
| btwrite(0, BT878_AINT_MASK); |
| btwrite(~0U, BT878_AINT_STAT); |
| |
| /* disable PCI bus-mastering */ |
| pci_read_config_byte(bt->dev, PCI_COMMAND, &command); |
| /* Should this be &=~ ?? */ |
| command &= ~PCI_COMMAND_MASTER; |
| pci_write_config_byte(bt->dev, PCI_COMMAND, command); |
| |
| free_irq(bt->irq, bt); |
| printk(KERN_DEBUG "bt878_mem: 0x%p.\n", bt->bt878_mem); |
| if (bt->bt878_mem) |
| iounmap(bt->bt878_mem); |
| |
| release_mem_region(pci_resource_start(bt->dev, 0), |
| pci_resource_len(bt->dev, 0)); |
| /* wake up any waiting processes |
| because shutdown flag is set, no new processes (in this queue) |
| are expected |
| */ |
| bt->shutdown = 1; |
| bt878_mem_free(bt); |
| |
| pci_disable_device(pci_dev); |
| return; |
| } |
| |
| static struct pci_driver bt878_pci_driver = { |
| .name = "bt878", |
| .id_table = bt878_pci_tbl, |
| .probe = bt878_probe, |
| .remove = bt878_remove, |
| }; |
| |
| /*******************************/ |
| /* Module management functions */ |
| /*******************************/ |
| |
| static int __init bt878_init_module(void) |
| { |
| bt878_num = 0; |
| |
| printk(KERN_INFO "bt878: AUDIO driver version %d.%d.%d loaded\n", |
| (BT878_VERSION_CODE >> 16) & 0xff, |
| (BT878_VERSION_CODE >> 8) & 0xff, |
| BT878_VERSION_CODE & 0xff); |
| |
| return pci_register_driver(&bt878_pci_driver); |
| } |
| |
| static void __exit bt878_cleanup_module(void) |
| { |
| pci_unregister_driver(&bt878_pci_driver); |
| } |
| |
| module_init(bt878_init_module); |
| module_exit(bt878_cleanup_module); |
| |
| MODULE_LICENSE("GPL"); |
| |
| /* |
| * Local variables: |
| * c-basic-offset: 8 |
| * End: |
| */ |