1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 Mantis PCI bridge driver 4 5 Copyright (C) Manu Abraham (abraham.manu@gmail.com) 6 7 */ 8 9 #include <linux/module.h> 10 #include <linux/kernel.h> 11 #include <linux/pci.h> 12 #include <linux/slab.h> 13 #include <asm/irq.h> 14 #include <linux/interrupt.h> 15 #include <media/rc-map.h> 16 17 #include <media/dmxdev.h> 18 #include <media/dvbdev.h> 19 #include <media/dvb_demux.h> 20 #include <media/dvb_frontend.h> 21 #include <media/dvb_net.h> 22 23 #include "mantis_common.h" 24 25 #include "mantis_vp1033.h" 26 #include "mantis_vp1034.h" 27 #include "mantis_vp1041.h" 28 #include "mantis_vp2033.h" 29 #include "mantis_vp2040.h" 30 #include "mantis_vp3030.h" 31 32 #include "mantis_dma.h" 33 #include "mantis_ca.h" 34 #include "mantis_dvb.h" 35 #include "mantis_uart.h" 36 #include "mantis_ioc.h" 37 #include "mantis_pci.h" 38 #include "mantis_i2c.h" 39 #include "mantis_reg.h" 40 #include "mantis_input.h" 41 42 static unsigned int verbose; 43 module_param(verbose, int, 0644); 44 MODULE_PARM_DESC(verbose, "verbose startup messages, default is 0 (no)"); 45 46 static int devs; 47 48 #define DRIVER_NAME "Mantis" 49 50 static char *label[10] = { 51 "DMA", 52 "IRQ-0", 53 "IRQ-1", 54 "OCERR", 55 "PABRT", 56 "RIPRR", 57 "PPERR", 58 "FTRGT", 59 "RISCI", 60 "RACK" 61 }; 62 63 static irqreturn_t mantis_irq_handler(int irq, void *dev_id) 64 { 65 u32 stat = 0, mask = 0; 66 u32 rst_stat = 0, rst_mask = 0; 67 68 struct mantis_pci *mantis; 69 struct mantis_ca *ca; 70 71 mantis = (struct mantis_pci *) dev_id; 72 if (unlikely(!mantis)) 73 return IRQ_NONE; 74 ca = mantis->mantis_ca; 75 76 stat = mmread(MANTIS_INT_STAT); 77 mask = mmread(MANTIS_INT_MASK); 78 if (!(stat & mask)) 79 return IRQ_NONE; 80 81 rst_mask = MANTIS_GPIF_WRACK | 82 MANTIS_GPIF_OTHERR | 83 MANTIS_SBUF_WSTO | 84 MANTIS_GPIF_EXTIRQ; 85 86 rst_stat = mmread(MANTIS_GPIF_STATUS); 87 rst_stat &= rst_mask; 88 mmwrite(rst_stat, MANTIS_GPIF_STATUS); 89 90 mantis->mantis_int_stat = stat; 91 mantis->mantis_int_mask = mask; 92 dprintk(MANTIS_DEBUG, 0, "\n-- Stat=<%02x> Mask=<%02x> --", stat, mask); 93 if (stat & MANTIS_INT_RISCEN) { 94 dprintk(MANTIS_DEBUG, 0, "<%s>", label[0]); 95 } 96 if (stat & MANTIS_INT_IRQ0) { 97 dprintk(MANTIS_DEBUG, 0, "<%s>", label[1]); 98 mantis->gpif_status = rst_stat; 99 wake_up(&ca->hif_write_wq); 100 schedule_work(&ca->hif_evm_work); 101 } 102 if (stat & MANTIS_INT_IRQ1) { 103 dprintk(MANTIS_DEBUG, 0, "<%s>", label[2]); 104 spin_lock(&mantis->intmask_lock); 105 mmwrite(mmread(MANTIS_INT_MASK) & ~MANTIS_INT_IRQ1, 106 MANTIS_INT_MASK); 107 spin_unlock(&mantis->intmask_lock); 108 schedule_work(&mantis->uart_work); 109 } 110 if (stat & MANTIS_INT_OCERR) { 111 dprintk(MANTIS_DEBUG, 0, "<%s>", label[3]); 112 } 113 if (stat & MANTIS_INT_PABORT) { 114 dprintk(MANTIS_DEBUG, 0, "<%s>", label[4]); 115 } 116 if (stat & MANTIS_INT_RIPERR) { 117 dprintk(MANTIS_DEBUG, 0, "<%s>", label[5]); 118 } 119 if (stat & MANTIS_INT_PPERR) { 120 dprintk(MANTIS_DEBUG, 0, "<%s>", label[6]); 121 } 122 if (stat & MANTIS_INT_FTRGT) { 123 dprintk(MANTIS_DEBUG, 0, "<%s>", label[7]); 124 } 125 if (stat & MANTIS_INT_RISCI) { 126 dprintk(MANTIS_DEBUG, 0, "<%s>", label[8]); 127 mantis->busy_block = (stat & MANTIS_INT_RISCSTAT) >> 28; 128 tasklet_schedule(&mantis->tasklet); 129 } 130 if (stat & MANTIS_INT_I2CDONE) { 131 dprintk(MANTIS_DEBUG, 0, "<%s>", label[9]); 132 wake_up(&mantis->i2c_wq); 133 } 134 mmwrite(stat, MANTIS_INT_STAT); 135 stat &= ~(MANTIS_INT_RISCEN | MANTIS_INT_I2CDONE | 136 MANTIS_INT_I2CRACK | MANTIS_INT_PCMCIA7 | 137 MANTIS_INT_PCMCIA6 | MANTIS_INT_PCMCIA5 | 138 MANTIS_INT_PCMCIA4 | MANTIS_INT_PCMCIA3 | 139 MANTIS_INT_PCMCIA2 | MANTIS_INT_PCMCIA1 | 140 MANTIS_INT_PCMCIA0 | MANTIS_INT_IRQ1 | 141 MANTIS_INT_IRQ0 | MANTIS_INT_OCERR | 142 MANTIS_INT_PABORT | MANTIS_INT_RIPERR | 143 MANTIS_INT_PPERR | MANTIS_INT_FTRGT | 144 MANTIS_INT_RISCI); 145 146 if (stat) 147 dprintk(MANTIS_DEBUG, 0, "<Unknown> Stat=<%02x> Mask=<%02x>", stat, mask); 148 149 dprintk(MANTIS_DEBUG, 0, "\n"); 150 return IRQ_HANDLED; 151 } 152 153 static int mantis_pci_probe(struct pci_dev *pdev, 154 const struct pci_device_id *pci_id) 155 { 156 struct mantis_pci_drvdata *drvdata; 157 struct mantis_pci *mantis; 158 struct mantis_hwconfig *config; 159 int err; 160 161 mantis = kzalloc(sizeof(*mantis), GFP_KERNEL); 162 if (!mantis) 163 return -ENOMEM; 164 165 drvdata = (void *)pci_id->driver_data; 166 mantis->num = devs; 167 mantis->verbose = verbose; 168 mantis->pdev = pdev; 169 config = drvdata->hwconfig; 170 config->irq_handler = &mantis_irq_handler; 171 mantis->hwconfig = config; 172 mantis->rc_map_name = drvdata->rc_map_name; 173 174 spin_lock_init(&mantis->intmask_lock); 175 176 err = mantis_pci_init(mantis); 177 if (err) { 178 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis PCI initialization failed <%d>", err); 179 goto err_free_mantis; 180 } 181 182 err = mantis_stream_control(mantis, STREAM_TO_HIF); 183 if (err < 0) { 184 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis stream control failed <%d>", err); 185 goto err_pci_exit; 186 } 187 188 err = mantis_i2c_init(mantis); 189 if (err < 0) { 190 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis I2C initialization failed <%d>", err); 191 goto err_pci_exit; 192 } 193 194 err = mantis_get_mac(mantis); 195 if (err < 0) { 196 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis MAC address read failed <%d>", err); 197 goto err_i2c_exit; 198 } 199 200 err = mantis_dma_init(mantis); 201 if (err < 0) { 202 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DMA initialization failed <%d>", err); 203 goto err_i2c_exit; 204 } 205 206 err = mantis_dvb_init(mantis); 207 if (err < 0) { 208 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DVB initialization failed <%d>", err); 209 goto err_dma_exit; 210 } 211 212 err = mantis_input_init(mantis); 213 if (err < 0) { 214 dprintk(MANTIS_ERROR, 1, 215 "ERROR: Mantis DVB initialization failed <%d>", err); 216 goto err_dvb_exit; 217 } 218 219 err = mantis_uart_init(mantis); 220 if (err < 0) { 221 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis UART initialization failed <%d>", err); 222 goto err_input_exit; 223 } 224 225 devs++; 226 227 return 0; 228 229 err_input_exit: 230 mantis_input_exit(mantis); 231 232 err_dvb_exit: 233 mantis_dvb_exit(mantis); 234 235 err_dma_exit: 236 mantis_dma_exit(mantis); 237 238 err_i2c_exit: 239 mantis_i2c_exit(mantis); 240 241 err_pci_exit: 242 mantis_pci_exit(mantis); 243 244 err_free_mantis: 245 kfree(mantis); 246 247 return err; 248 } 249 250 static void mantis_pci_remove(struct pci_dev *pdev) 251 { 252 struct mantis_pci *mantis = pci_get_drvdata(pdev); 253 254 if (mantis) { 255 256 mantis_uart_exit(mantis); 257 mantis_input_exit(mantis); 258 mantis_dvb_exit(mantis); 259 mantis_dma_exit(mantis); 260 mantis_i2c_exit(mantis); 261 mantis_pci_exit(mantis); 262 kfree(mantis); 263 } 264 return; 265 } 266 267 static const struct pci_device_id mantis_pci_table[] = { 268 MAKE_ENTRY(TECHNISAT, CABLESTAR_HD2, &vp2040_config, 269 RC_MAP_TECHNISAT_TS35), 270 MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_10, &vp1041_config, 271 NULL), 272 MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_20, &vp1041_config, 273 NULL), 274 MAKE_ENTRY(TERRATEC, CINERGY_C, &vp2040_config, 275 RC_MAP_TERRATEC_CINERGY_C_PCI), 276 MAKE_ENTRY(TERRATEC, CINERGY_S2_PCI_HD, &vp1041_config, 277 RC_MAP_TERRATEC_CINERGY_S2_HD), 278 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1033_DVB_S, &vp1033_config, 279 NULL), 280 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1034_DVB_S, &vp1034_config, 281 NULL), 282 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1041_DVB_S2, &vp1041_config, 283 RC_MAP_TWINHAN_DTV_CAB_CI), 284 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2033_DVB_C, &vp2033_config, 285 RC_MAP_TWINHAN_DTV_CAB_CI), 286 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2040_DVB_C, &vp2040_config, 287 NULL), 288 MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_3030_DVB_T, &vp3030_config, 289 NULL), 290 { } 291 }; 292 293 MODULE_DEVICE_TABLE(pci, mantis_pci_table); 294 295 static struct pci_driver mantis_pci_driver = { 296 .name = DRIVER_NAME, 297 .id_table = mantis_pci_table, 298 .probe = mantis_pci_probe, 299 .remove = mantis_pci_remove, 300 }; 301 302 module_pci_driver(mantis_pci_driver); 303 304 MODULE_DESCRIPTION("MANTIS driver"); 305 MODULE_AUTHOR("Manu Abraham"); 306 MODULE_LICENSE("GPL"); 307