Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 1 | /* |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 2 | * Linux driver the digital TV devices equipped with B2C2 FlexcopII(b)/III |
| 3 | * flexcop-pci.c - covers the PCI part including DMA transfers |
| 4 | * see flexcop.c for copyright information |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 5 | */ |
| 6 | |
| 7 | #define FC_LOG_PREFIX "flexcop-pci" |
| 8 | #include "flexcop-common.h" |
| 9 | |
Johannes Stezenbach | c4ee3fd | 2005-05-16 21:54:15 -0700 | [diff] [blame] | 10 | static int enable_pid_filtering = 1; |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 11 | module_param(enable_pid_filtering, int, 0444); |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 12 | MODULE_PARM_DESC(enable_pid_filtering, |
| 13 | "enable hardware pid filtering: supported values: 0 (fullts), 1"); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 14 | |
Patrick Boettcher | 382c554 | 2009-02-23 06:27:16 -0300 | [diff] [blame] | 15 | static int irq_chk_intv = 100; |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 16 | module_param(irq_chk_intv, int, 0644); |
Patrick Boettcher | 382c554 | 2009-02-23 06:27:16 -0300 | [diff] [blame] | 17 | MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ streaming watchdog."); |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 18 | |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 19 | #ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG |
| 20 | #define dprintk(level,args...) \ |
| 21 | do { if ((debug & level)) printk(args); } while (0) |
| 22 | #define DEBSTATUS "" |
| 23 | #else |
| 24 | #define dprintk(level,args...) |
| 25 | #define DEBSTATUS " (debugging is not enabled)" |
| 26 | #endif |
| 27 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 28 | #define deb_info(args...) dprintk(0x01, args) |
| 29 | #define deb_reg(args...) dprintk(0x02, args) |
| 30 | #define deb_ts(args...) dprintk(0x04, args) |
| 31 | #define deb_irq(args...) dprintk(0x08, args) |
| 32 | #define deb_chk(args...) dprintk(0x10, args) |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 33 | |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 34 | static int debug; |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 35 | module_param(debug, int, 0644); |
Patrick Boettcher | 382c554 | 2009-02-23 06:27:16 -0300 | [diff] [blame] | 36 | MODULE_PARM_DESC(debug, |
| 37 | "set debug level (1=info,2=regs,4=TS,8=irqdma,16=check (|-able))." |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 38 | DEBSTATUS); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 39 | |
| 40 | #define DRIVER_VERSION "0.1" |
| 41 | #define DRIVER_NAME "Technisat/B2C2 FlexCop II/IIb/III Digital TV PCI Driver" |
| 42 | #define DRIVER_AUTHOR "Patrick Boettcher <patrick.boettcher@desy.de>" |
| 43 | |
| 44 | struct flexcop_pci { |
| 45 | struct pci_dev *pdev; |
| 46 | |
| 47 | #define FC_PCI_INIT 0x01 |
| 48 | #define FC_PCI_DMA_INIT 0x02 |
| 49 | int init_state; |
| 50 | |
| 51 | void __iomem *io_mem; |
| 52 | u32 irq; |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 53 | /* buffersize (at least for DMA1, need to be % 188 == 0, |
| 54 | * this logic is required */ |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 55 | #define FC_DEFAULT_DMA1_BUFSIZE (1280 * 188) |
| 56 | #define FC_DEFAULT_DMA2_BUFSIZE (10 * 188) |
| 57 | struct flexcop_dma dma[2]; |
| 58 | |
| 59 | int active_dma1_addr; /* 0 = addr0 of dma1; 1 = addr1 of dma1 */ |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 60 | u32 last_dma1_cur_pos; |
| 61 | /* position of the pointer last time the timer/packet irq occured */ |
Johannes Stezenbach | c4ee3fd | 2005-05-16 21:54:15 -0700 | [diff] [blame] | 62 | int count; |
Patrick Boettcher | 382c554 | 2009-02-23 06:27:16 -0300 | [diff] [blame] | 63 | int count_prev; |
| 64 | int stream_problem; |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 65 | |
Johannes Stezenbach | 4853f16 | 2005-05-16 21:54:15 -0700 | [diff] [blame] | 66 | spinlock_t irq_lock; |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 67 | unsigned long last_irq; |
| 68 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 69 | struct delayed_work irq_check_work; |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 70 | struct flexcop_device *fc_dev; |
| 71 | }; |
| 72 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 73 | static int lastwreg, lastwval, lastrreg, lastrval; |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 74 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 75 | static flexcop_ibi_value flexcop_pci_read_ibi_reg(struct flexcop_device *fc, |
| 76 | flexcop_ibi_register r) |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 77 | { |
| 78 | struct flexcop_pci *fc_pci = fc->bus_specific; |
| 79 | flexcop_ibi_value v; |
| 80 | v.raw = readl(fc_pci->io_mem + r); |
| 81 | |
| 82 | if (lastrreg != r || lastrval != v.raw) { |
| 83 | lastrreg = r; lastrval = v.raw; |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 84 | deb_reg("new rd: %3x: %08x\n", r, v.raw); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 85 | } |
| 86 | |
| 87 | return v; |
| 88 | } |
| 89 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 90 | static int flexcop_pci_write_ibi_reg(struct flexcop_device *fc, |
| 91 | flexcop_ibi_register r, flexcop_ibi_value v) |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 92 | { |
| 93 | struct flexcop_pci *fc_pci = fc->bus_specific; |
| 94 | |
| 95 | if (lastwreg != r || lastwval != v.raw) { |
| 96 | lastwreg = r; lastwval = v.raw; |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 97 | deb_reg("new wr: %3x: %08x\n", r, v.raw); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 98 | } |
| 99 | |
| 100 | writel(v.raw, fc_pci->io_mem + r); |
| 101 | return 0; |
| 102 | } |
| 103 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 104 | static void flexcop_pci_irq_check_work(struct work_struct *work) |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 105 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 106 | struct flexcop_pci *fc_pci = |
| 107 | container_of(work, struct flexcop_pci, irq_check_work.work); |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 108 | struct flexcop_device *fc = fc_pci->fc_dev; |
| 109 | |
Patrick Boettcher | 382c554 | 2009-02-23 06:27:16 -0300 | [diff] [blame] | 110 | if (fc->feedcount) { |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 111 | |
Patrick Boettcher | 382c554 | 2009-02-23 06:27:16 -0300 | [diff] [blame] | 112 | if (fc_pci->count == fc_pci->count_prev) { |
| 113 | deb_chk("no IRQ since the last check\n"); |
| 114 | if (fc_pci->stream_problem++ == 3) { |
| 115 | struct dvb_demux_feed *feed; |
Matthias Schwarzott | a27e4fd | 2009-03-10 13:55:14 -0300 | [diff] [blame] | 116 | deb_info("flexcop-pci: stream problem, resetting pid filter\n"); |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 117 | |
Patrick Boettcher | 382c554 | 2009-02-23 06:27:16 -0300 | [diff] [blame] | 118 | spin_lock_irq(&fc->demux.lock); |
| 119 | list_for_each_entry(feed, &fc->demux.feed_list, |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 120 | list_head) { |
Patrick Boettcher | 382c554 | 2009-02-23 06:27:16 -0300 | [diff] [blame] | 121 | flexcop_pid_feed_control(fc, feed, 0); |
| 122 | } |
| 123 | |
| 124 | list_for_each_entry(feed, &fc->demux.feed_list, |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 125 | list_head) { |
Patrick Boettcher | 382c554 | 2009-02-23 06:27:16 -0300 | [diff] [blame] | 126 | flexcop_pid_feed_control(fc, feed, 1); |
| 127 | } |
| 128 | spin_unlock_irq(&fc->demux.lock); |
| 129 | |
| 130 | fc_pci->stream_problem = 0; |
| 131 | } |
| 132 | } else { |
| 133 | fc_pci->stream_problem = 0; |
| 134 | fc_pci->count_prev = fc_pci->count; |
| 135 | } |
| 136 | } |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 137 | |
| 138 | schedule_delayed_work(&fc_pci->irq_check_work, |
| 139 | msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv)); |
| 140 | } |
| 141 | |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 142 | /* When PID filtering is turned on, we use the timer IRQ, because small amounts |
| 143 | * of data need to be passed to the user space instantly as well. When PID |
| 144 | * filtering is turned off, we use the page-change-IRQ */ |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 145 | static irqreturn_t flexcop_pci_isr(int irq, void *dev_id) |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 146 | { |
| 147 | struct flexcop_pci *fc_pci = dev_id; |
| 148 | struct flexcop_device *fc = fc_pci->fc_dev; |
Hendrik Borghorst | 4f210e0 | 2007-04-05 14:28:11 -0300 | [diff] [blame] | 149 | unsigned long flags; |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 150 | flexcop_ibi_value v; |
Johannes Stezenbach | 4853f16 | 2005-05-16 21:54:15 -0700 | [diff] [blame] | 151 | irqreturn_t ret = IRQ_HANDLED; |
| 152 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 153 | spin_lock_irqsave(&fc_pci->irq_lock, flags); |
| 154 | v = fc->read_ibi_reg(fc, irq_20c); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 155 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 156 | /* errors */ |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 157 | if (v.irq_20c.Data_receiver_error) |
| 158 | deb_chk("data receiver error\n"); |
| 159 | if (v.irq_20c.Continuity_error_flag) |
| 160 | deb_chk("Contunuity error flag is set\n"); |
| 161 | if (v.irq_20c.LLC_SNAP_FLAG_set) |
| 162 | deb_chk("LLC_SNAP_FLAG_set is set\n"); |
| 163 | if (v.irq_20c.Transport_Error) |
| 164 | deb_chk("Transport error\n"); |
| 165 | |
| 166 | if ((fc_pci->count % 1000) == 0) |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 167 | deb_chk("%d valid irq took place so far\n", fc_pci->count); |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 168 | |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 169 | if (v.irq_20c.DMA1_IRQ_Status == 1) { |
| 170 | if (fc_pci->active_dma1_addr == 0) |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 171 | flexcop_pass_dmx_packets(fc_pci->fc_dev, |
| 172 | fc_pci->dma[0].cpu_addr0, |
| 173 | fc_pci->dma[0].size / 188); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 174 | else |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 175 | flexcop_pass_dmx_packets(fc_pci->fc_dev, |
| 176 | fc_pci->dma[0].cpu_addr1, |
| 177 | fc_pci->dma[0].size / 188); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 178 | |
| 179 | deb_irq("page change to page: %d\n",!fc_pci->active_dma1_addr); |
| 180 | fc_pci->active_dma1_addr = !fc_pci->active_dma1_addr; |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 181 | /* for the timer IRQ we only can use buffer dmx feeding, because we don't have |
| 182 | * complete TS packets when reading from the DMA memory */ |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 183 | } else if (v.irq_20c.DMA1_Timer_Status == 1) { |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 184 | dma_addr_t cur_addr = |
| 185 | fc->read_ibi_reg(fc,dma1_008).dma_0x8.dma_cur_addr << 2; |
| 186 | u32 cur_pos = cur_addr - fc_pci->dma[0].dma_addr0; |
| 187 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 188 | deb_irq("%u irq: %08x cur_addr: %llx: cur_pos: %08x, " |
| 189 | "last_cur_pos: %08x ", |
Randy Dunlap | 608268b | 2006-01-23 10:01:59 -0200 | [diff] [blame] | 190 | jiffies_to_usecs(jiffies - fc_pci->last_irq), |
| 191 | v.raw, (unsigned long long)cur_addr, cur_pos, |
| 192 | fc_pci->last_dma1_cur_pos); |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 193 | fc_pci->last_irq = jiffies; |
Johannes Stezenbach | c4ee3fd | 2005-05-16 21:54:15 -0700 | [diff] [blame] | 194 | |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 195 | /* buffer end was reached, restarted from the beginning |
| 196 | * pass the data from last_cur_pos to the buffer end to the demux |
| 197 | */ |
| 198 | if (cur_pos < fc_pci->last_dma1_cur_pos) { |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 199 | deb_irq(" end was reached: passing %d bytes ", |
| 200 | (fc_pci->dma[0].size*2 - 1) - |
| 201 | fc_pci->last_dma1_cur_pos); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 202 | flexcop_pass_dmx_data(fc_pci->fc_dev, |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 203 | fc_pci->dma[0].cpu_addr0 + |
| 204 | fc_pci->last_dma1_cur_pos, |
| 205 | (fc_pci->dma[0].size*2) - |
| 206 | fc_pci->last_dma1_cur_pos); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 207 | fc_pci->last_dma1_cur_pos = 0; |
| 208 | } |
| 209 | |
| 210 | if (cur_pos > fc_pci->last_dma1_cur_pos) { |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 211 | deb_irq(" passing %d bytes ", |
| 212 | cur_pos - fc_pci->last_dma1_cur_pos); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 213 | flexcop_pass_dmx_data(fc_pci->fc_dev, |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 214 | fc_pci->dma[0].cpu_addr0 + |
| 215 | fc_pci->last_dma1_cur_pos, |
| 216 | cur_pos - fc_pci->last_dma1_cur_pos); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 217 | } |
Johannes Stezenbach | c4ee3fd | 2005-05-16 21:54:15 -0700 | [diff] [blame] | 218 | deb_irq("\n"); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 219 | |
| 220 | fc_pci->last_dma1_cur_pos = cur_pos; |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 221 | fc_pci->count++; |
| 222 | } else { |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 223 | deb_irq("isr for flexcop called, " |
| 224 | "apparently without reason (%08x)\n", v.raw); |
Johannes Stezenbach | 4853f16 | 2005-05-16 21:54:15 -0700 | [diff] [blame] | 225 | ret = IRQ_NONE; |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 226 | } |
Johannes Stezenbach | 4853f16 | 2005-05-16 21:54:15 -0700 | [diff] [blame] | 227 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 228 | spin_unlock_irqrestore(&fc_pci->irq_lock, flags); |
Johannes Stezenbach | 4853f16 | 2005-05-16 21:54:15 -0700 | [diff] [blame] | 229 | return ret; |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 230 | } |
| 231 | |
| 232 | static int flexcop_pci_stream_control(struct flexcop_device *fc, int onoff) |
| 233 | { |
| 234 | struct flexcop_pci *fc_pci = fc->bus_specific; |
| 235 | if (onoff) { |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 236 | flexcop_dma_config(fc, &fc_pci->dma[0], FC_DMA_1); |
| 237 | flexcop_dma_config(fc, &fc_pci->dma[1], FC_DMA_2); |
| 238 | flexcop_dma_config_timer(fc, FC_DMA_1, 0); |
| 239 | flexcop_dma_xfer_control(fc, FC_DMA_1, |
| 240 | FC_DMA_SUBADDR_0 | FC_DMA_SUBADDR_1, 1); |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 241 | deb_irq("DMA xfer enabled\n"); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 242 | |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 243 | fc_pci->last_dma1_cur_pos = 0; |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 244 | flexcop_dma_control_timer_irq(fc, FC_DMA_1, 1); |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 245 | deb_irq("IRQ enabled\n"); |
Patrick Boettcher | 382c554 | 2009-02-23 06:27:16 -0300 | [diff] [blame] | 246 | fc_pci->count_prev = fc_pci->count; |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 247 | } else { |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 248 | flexcop_dma_control_timer_irq(fc, FC_DMA_1, 0); |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 249 | deb_irq("IRQ disabled\n"); |
| 250 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 251 | flexcop_dma_xfer_control(fc, FC_DMA_1, |
| 252 | FC_DMA_SUBADDR_0 | FC_DMA_SUBADDR_1, 0); |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 253 | deb_irq("DMA xfer disabled\n"); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 254 | } |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 255 | return 0; |
| 256 | } |
| 257 | |
| 258 | static int flexcop_pci_dma_init(struct flexcop_pci *fc_pci) |
| 259 | { |
| 260 | int ret; |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 261 | ret = flexcop_dma_allocate(fc_pci->pdev, &fc_pci->dma[0], |
| 262 | FC_DEFAULT_DMA1_BUFSIZE); |
| 263 | if (ret != 0) |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 264 | return ret; |
| 265 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 266 | ret = flexcop_dma_allocate(fc_pci->pdev, &fc_pci->dma[1], |
| 267 | FC_DEFAULT_DMA2_BUFSIZE); |
| 268 | if (ret != 0) { |
Trent Piepho | 8397703 | 2006-05-12 20:36:24 -0300 | [diff] [blame] | 269 | flexcop_dma_free(&fc_pci->dma[0]); |
| 270 | return ret; |
| 271 | } |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 272 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 273 | flexcop_sram_set_dest(fc_pci->fc_dev, FC_SRAM_DEST_MEDIA | |
| 274 | FC_SRAM_DEST_NET, FC_SRAM_DEST_TARGET_DMA1); |
| 275 | flexcop_sram_set_dest(fc_pci->fc_dev, FC_SRAM_DEST_CAO | |
| 276 | FC_SRAM_DEST_CAI, FC_SRAM_DEST_TARGET_DMA2); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 277 | fc_pci->init_state |= FC_PCI_DMA_INIT; |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 278 | return ret; |
| 279 | } |
| 280 | |
| 281 | static void flexcop_pci_dma_exit(struct flexcop_pci *fc_pci) |
| 282 | { |
| 283 | if (fc_pci->init_state & FC_PCI_DMA_INIT) { |
| 284 | flexcop_dma_free(&fc_pci->dma[0]); |
| 285 | flexcop_dma_free(&fc_pci->dma[1]); |
| 286 | } |
| 287 | fc_pci->init_state &= ~FC_PCI_DMA_INIT; |
| 288 | } |
| 289 | |
| 290 | static int flexcop_pci_init(struct flexcop_pci *fc_pci) |
| 291 | { |
| 292 | int ret; |
| 293 | u8 card_rev; |
| 294 | |
| 295 | pci_read_config_byte(fc_pci->pdev, PCI_CLASS_REVISION, &card_rev); |
| 296 | info("card revision %x", card_rev); |
| 297 | |
| 298 | if ((ret = pci_enable_device(fc_pci->pdev)) != 0) |
| 299 | return ret; |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 300 | pci_set_master(fc_pci->pdev); |
| 301 | |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 302 | if ((ret = pci_request_regions(fc_pci->pdev, DRIVER_NAME)) != 0) |
| 303 | goto err_pci_disable_device; |
| 304 | |
| 305 | fc_pci->io_mem = pci_iomap(fc_pci->pdev, 0, 0x800); |
| 306 | |
| 307 | if (!fc_pci->io_mem) { |
| 308 | err("cannot map io memory\n"); |
| 309 | ret = -EIO; |
| 310 | goto err_pci_release_regions; |
| 311 | } |
| 312 | |
| 313 | pci_set_drvdata(fc_pci->pdev, fc_pci); |
Hendrik Borghorst | 4f210e0 | 2007-04-05 14:28:11 -0300 | [diff] [blame] | 314 | spin_lock_init(&fc_pci->irq_lock); |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 315 | if ((ret = request_irq(fc_pci->pdev->irq, flexcop_pci_isr, |
Thomas Gleixner | 8076fe3 | 2006-07-01 19:29:37 -0700 | [diff] [blame] | 316 | IRQF_SHARED, DRIVER_NAME, fc_pci)) != 0) |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 317 | goto err_pci_iounmap; |
| 318 | |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 319 | fc_pci->init_state |= FC_PCI_INIT; |
Trent Piepho | 8397703 | 2006-05-12 20:36:24 -0300 | [diff] [blame] | 320 | return ret; |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 321 | |
| 322 | err_pci_iounmap: |
| 323 | pci_iounmap(fc_pci->pdev, fc_pci->io_mem); |
| 324 | pci_set_drvdata(fc_pci->pdev, NULL); |
| 325 | err_pci_release_regions: |
| 326 | pci_release_regions(fc_pci->pdev); |
| 327 | err_pci_disable_device: |
| 328 | pci_disable_device(fc_pci->pdev); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 329 | return ret; |
| 330 | } |
| 331 | |
| 332 | static void flexcop_pci_exit(struct flexcop_pci *fc_pci) |
| 333 | { |
| 334 | if (fc_pci->init_state & FC_PCI_INIT) { |
| 335 | free_irq(fc_pci->pdev->irq, fc_pci); |
| 336 | pci_iounmap(fc_pci->pdev, fc_pci->io_mem); |
| 337 | pci_set_drvdata(fc_pci->pdev, NULL); |
| 338 | pci_release_regions(fc_pci->pdev); |
| 339 | pci_disable_device(fc_pci->pdev); |
| 340 | } |
| 341 | fc_pci->init_state &= ~FC_PCI_INIT; |
| 342 | } |
| 343 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 344 | static int flexcop_pci_probe(struct pci_dev *pdev, |
| 345 | const struct pci_device_id *ent) |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 346 | { |
| 347 | struct flexcop_device *fc; |
| 348 | struct flexcop_pci *fc_pci; |
| 349 | int ret = -ENOMEM; |
| 350 | |
| 351 | if ((fc = flexcop_device_kmalloc(sizeof(struct flexcop_pci))) == NULL) { |
| 352 | err("out of memory\n"); |
| 353 | return -ENOMEM; |
| 354 | } |
| 355 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 356 | /* general flexcop init */ |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 357 | fc_pci = fc->bus_specific; |
| 358 | fc_pci->fc_dev = fc; |
| 359 | |
| 360 | fc->read_ibi_reg = flexcop_pci_read_ibi_reg; |
| 361 | fc->write_ibi_reg = flexcop_pci_write_ibi_reg; |
| 362 | fc->i2c_request = flexcop_i2c_request; |
| 363 | fc->get_mac_addr = flexcop_eeprom_check_mac_addr; |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 364 | fc->stream_control = flexcop_pci_stream_control; |
| 365 | |
Johannes Stezenbach | c4ee3fd | 2005-05-16 21:54:15 -0700 | [diff] [blame] | 366 | if (enable_pid_filtering) |
| 367 | info("will use the HW PID filter."); |
| 368 | else |
| 369 | info("will pass the complete TS to the demuxer."); |
| 370 | |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 371 | fc->pid_filtering = enable_pid_filtering; |
| 372 | fc->bus_type = FC_PCI; |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 373 | fc->dev = &pdev->dev; |
Johannes Stezenbach | 59a7ad6 | 2005-05-16 21:54:16 -0700 | [diff] [blame] | 374 | fc->owner = THIS_MODULE; |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 375 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 376 | /* bus specific part */ |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 377 | fc_pci->pdev = pdev; |
| 378 | if ((ret = flexcop_pci_init(fc_pci)) != 0) |
| 379 | goto err_kfree; |
| 380 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 381 | /* init flexcop */ |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 382 | if ((ret = flexcop_device_initialize(fc)) != 0) |
| 383 | goto err_pci_exit; |
| 384 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 385 | /* init dma */ |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 386 | if ((ret = flexcop_pci_dma_init(fc_pci)) != 0) |
| 387 | goto err_fc_exit; |
| 388 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 389 | INIT_DELAYED_WORK(&fc_pci->irq_check_work, flexcop_pci_irq_check_work); |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 390 | |
Uwe Bugla | 91b9436 | 2009-03-29 08:13:01 -0300 | [diff] [blame] | 391 | if (irq_chk_intv > 0) |
| 392 | schedule_delayed_work(&fc_pci->irq_check_work, |
| 393 | msecs_to_jiffies(irq_chk_intv < 100 ? |
| 394 | 100 : |
| 395 | irq_chk_intv)); |
Trent Piepho | 8397703 | 2006-05-12 20:36:24 -0300 | [diff] [blame] | 396 | return ret; |
| 397 | |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 398 | err_fc_exit: |
| 399 | flexcop_device_exit(fc); |
| 400 | err_pci_exit: |
| 401 | flexcop_pci_exit(fc_pci); |
| 402 | err_kfree: |
| 403 | flexcop_device_kfree(fc); |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 404 | return ret; |
| 405 | } |
| 406 | |
| 407 | /* in theory every _exit function should be called exactly two times, |
| 408 | * here and in the bail-out-part of the _init-function |
| 409 | */ |
| 410 | static void flexcop_pci_remove(struct pci_dev *pdev) |
| 411 | { |
| 412 | struct flexcop_pci *fc_pci = pci_get_drvdata(pdev); |
| 413 | |
Patrick Boettcher | 382c554 | 2009-02-23 06:27:16 -0300 | [diff] [blame] | 414 | if (irq_chk_intv > 0) |
| 415 | cancel_delayed_work(&fc_pci->irq_check_work); |
| 416 | |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 417 | flexcop_pci_dma_exit(fc_pci); |
| 418 | flexcop_device_exit(fc_pci->fc_dev); |
| 419 | flexcop_pci_exit(fc_pci); |
| 420 | flexcop_device_kfree(fc_pci->fc_dev); |
| 421 | } |
| 422 | |
| 423 | static struct pci_device_id flexcop_pci_tbl[] = { |
| 424 | { PCI_DEVICE(0x13d0, 0x2103) }, |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 425 | { }, |
| 426 | }; |
| 427 | |
| 428 | MODULE_DEVICE_TABLE(pci, flexcop_pci_tbl); |
| 429 | |
| 430 | static struct pci_driver flexcop_pci_driver = { |
Patrick Boettcher | 63b5c1c | 2005-07-07 17:58:30 -0700 | [diff] [blame] | 431 | .name = "b2c2_flexcop_pci", |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 432 | .id_table = flexcop_pci_tbl, |
Patrick Boettcher | 64221be | 2005-07-07 17:57:49 -0700 | [diff] [blame] | 433 | .probe = flexcop_pci_probe, |
| 434 | .remove = flexcop_pci_remove, |
Johannes Stezenbach | 2add87a | 2005-05-16 21:54:10 -0700 | [diff] [blame] | 435 | }; |
| 436 | |
| 437 | static int __init flexcop_pci_module_init(void) |
| 438 | { |
| 439 | return pci_register_driver(&flexcop_pci_driver); |
| 440 | } |
| 441 | |
| 442 | static void __exit flexcop_pci_module_exit(void) |
| 443 | { |
| 444 | pci_unregister_driver(&flexcop_pci_driver); |
| 445 | } |
| 446 | |
| 447 | module_init(flexcop_pci_module_init); |
| 448 | module_exit(flexcop_pci_module_exit); |
| 449 | |
| 450 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 451 | MODULE_DESCRIPTION(DRIVER_NAME); |
| 452 | MODULE_LICENSE("GPL"); |