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Linux/drivers/media/pci/mantis/mantis_cards.c

  1 /*
  2         Mantis PCI bridge driver
  3 
  4         Copyright (C) Manu Abraham (abraham.manu@gmail.com)
  5 
  6         This program is free software; you can redistribute it and/or modify
  7         it under the terms of the GNU General Public License as published by
  8         the Free Software Foundation; either version 2 of the License, or
  9         (at your option) any later version.
 10 
 11         This program is distributed in the hope that it will be useful,
 12         but WITHOUT ANY WARRANTY; without even the implied warranty of
 13         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 14         GNU General Public License for more details.
 15 
 16         You should have received a copy of the GNU General Public License
 17         along with this program; if not, write to the Free Software
 18         Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 19 */
 20 
 21 #include <linux/module.h>
 22 #include <linux/moduleparam.h>
 23 #include <linux/kernel.h>
 24 #include <linux/pci.h>
 25 #include <linux/slab.h>
 26 #include <asm/irq.h>
 27 #include <linux/interrupt.h>
 28 #include <media/rc-map.h>
 29 
 30 #include "dmxdev.h"
 31 #include "dvbdev.h"
 32 #include "dvb_demux.h"
 33 #include "dvb_frontend.h"
 34 #include "dvb_net.h"
 35 
 36 #include "mantis_common.h"
 37 
 38 #include "mantis_vp1033.h"
 39 #include "mantis_vp1034.h"
 40 #include "mantis_vp1041.h"
 41 #include "mantis_vp2033.h"
 42 #include "mantis_vp2040.h"
 43 #include "mantis_vp3030.h"
 44 
 45 #include "mantis_dma.h"
 46 #include "mantis_ca.h"
 47 #include "mantis_dvb.h"
 48 #include "mantis_uart.h"
 49 #include "mantis_ioc.h"
 50 #include "mantis_pci.h"
 51 #include "mantis_i2c.h"
 52 #include "mantis_reg.h"
 53 #include "mantis_input.h"
 54 
 55 static unsigned int verbose;
 56 module_param(verbose, int, 0644);
 57 MODULE_PARM_DESC(verbose, "verbose startup messages, default is 0 (no)");
 58 
 59 static int devs;
 60 
 61 #define DRIVER_NAME     "Mantis"
 62 
 63 static char *label[10] = {
 64         "DMA",
 65         "IRQ-0",
 66         "IRQ-1",
 67         "OCERR",
 68         "PABRT",
 69         "RIPRR",
 70         "PPERR",
 71         "FTRGT",
 72         "RISCI",
 73         "RACK"
 74 };
 75 
 76 static irqreturn_t mantis_irq_handler(int irq, void *dev_id)
 77 {
 78         u32 stat = 0, mask = 0;
 79         u32 rst_stat = 0, rst_mask = 0;
 80 
 81         struct mantis_pci *mantis;
 82         struct mantis_ca *ca;
 83 
 84         mantis = (struct mantis_pci *) dev_id;
 85         if (unlikely(mantis == NULL)) {
 86                 dprintk(MANTIS_ERROR, 1, "Mantis == NULL");
 87                 return IRQ_NONE;
 88         }
 89         ca = mantis->mantis_ca;
 90 
 91         stat = mmread(MANTIS_INT_STAT);
 92         mask = mmread(MANTIS_INT_MASK);
 93         if (!(stat & mask))
 94                 return IRQ_NONE;
 95 
 96         rst_mask  = MANTIS_GPIF_WRACK  |
 97                     MANTIS_GPIF_OTHERR |
 98                     MANTIS_SBUF_WSTO   |
 99                     MANTIS_GPIF_EXTIRQ;
100 
101         rst_stat  = mmread(MANTIS_GPIF_STATUS);
102         rst_stat &= rst_mask;
103         mmwrite(rst_stat, MANTIS_GPIF_STATUS);
104 
105         mantis->mantis_int_stat = stat;
106         mantis->mantis_int_mask = mask;
107         dprintk(MANTIS_DEBUG, 0, "\n-- Stat=<%02x> Mask=<%02x> --", stat, mask);
108         if (stat & MANTIS_INT_RISCEN) {
109                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[0]);
110         }
111         if (stat & MANTIS_INT_IRQ0) {
112                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[1]);
113                 mantis->gpif_status = rst_stat;
114                 wake_up(&ca->hif_write_wq);
115                 schedule_work(&ca->hif_evm_work);
116         }
117         if (stat & MANTIS_INT_IRQ1) {
118                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[2]);
119                 spin_lock(&mantis->intmask_lock);
120                 mmwrite(mmread(MANTIS_INT_MASK) & ~MANTIS_INT_IRQ1,
121                         MANTIS_INT_MASK);
122                 spin_unlock(&mantis->intmask_lock);
123                 schedule_work(&mantis->uart_work);
124         }
125         if (stat & MANTIS_INT_OCERR) {
126                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[3]);
127         }
128         if (stat & MANTIS_INT_PABORT) {
129                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[4]);
130         }
131         if (stat & MANTIS_INT_RIPERR) {
132                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[5]);
133         }
134         if (stat & MANTIS_INT_PPERR) {
135                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[6]);
136         }
137         if (stat & MANTIS_INT_FTRGT) {
138                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[7]);
139         }
140         if (stat & MANTIS_INT_RISCI) {
141                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[8]);
142                 mantis->busy_block = (stat & MANTIS_INT_RISCSTAT) >> 28;
143                 tasklet_schedule(&mantis->tasklet);
144         }
145         if (stat & MANTIS_INT_I2CDONE) {
146                 dprintk(MANTIS_DEBUG, 0, "<%s>", label[9]);
147                 wake_up(&mantis->i2c_wq);
148         }
149         mmwrite(stat, MANTIS_INT_STAT);
150         stat &= ~(MANTIS_INT_RISCEN   | MANTIS_INT_I2CDONE |
151                   MANTIS_INT_I2CRACK  | MANTIS_INT_PCMCIA7 |
152                   MANTIS_INT_PCMCIA6  | MANTIS_INT_PCMCIA5 |
153                   MANTIS_INT_PCMCIA4  | MANTIS_INT_PCMCIA3 |
154                   MANTIS_INT_PCMCIA2  | MANTIS_INT_PCMCIA1 |
155                   MANTIS_INT_PCMCIA0  | MANTIS_INT_IRQ1    |
156                   MANTIS_INT_IRQ0     | MANTIS_INT_OCERR   |
157                   MANTIS_INT_PABORT   | MANTIS_INT_RIPERR  |
158                   MANTIS_INT_PPERR    | MANTIS_INT_FTRGT   |
159                   MANTIS_INT_RISCI);
160 
161         if (stat)
162                 dprintk(MANTIS_DEBUG, 0, "<Unknown> Stat=<%02x> Mask=<%02x>", stat, mask);
163 
164         dprintk(MANTIS_DEBUG, 0, "\n");
165         return IRQ_HANDLED;
166 }
167 
168 static int mantis_pci_probe(struct pci_dev *pdev,
169                             const struct pci_device_id *pci_id)
170 {
171         struct mantis_pci_drvdata *drvdata;
172         struct mantis_pci *mantis;
173         struct mantis_hwconfig *config;
174         int err = 0;
175 
176         mantis = kzalloc(sizeof(struct mantis_pci), GFP_KERNEL);
177         if (mantis == NULL) {
178                 printk(KERN_ERR "%s ERROR: Out of memory\n", __func__);
179                 return -ENOMEM;
180         }
181 
182         drvdata                 = (void *)pci_id->driver_data;
183         mantis->num             = devs;
184         mantis->verbose         = verbose;
185         mantis->pdev            = pdev;
186         config                  = drvdata->hwconfig;
187         config->irq_handler     = &mantis_irq_handler;
188         mantis->hwconfig        = config;
189         mantis->rc_map_name     = drvdata->rc_map_name;
190 
191         spin_lock_init(&mantis->intmask_lock);
192 
193         err = mantis_pci_init(mantis);
194         if (err) {
195                 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis PCI initialization failed <%d>", err);
196                 goto err_free_mantis;
197         }
198 
199         err = mantis_stream_control(mantis, STREAM_TO_HIF);
200         if (err < 0) {
201                 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis stream control failed <%d>", err);
202                 goto err_pci_exit;
203         }
204 
205         err = mantis_i2c_init(mantis);
206         if (err < 0) {
207                 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis I2C initialization failed <%d>", err);
208                 goto err_pci_exit;
209         }
210 
211         err = mantis_get_mac(mantis);
212         if (err < 0) {
213                 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis MAC address read failed <%d>", err);
214                 goto err_i2c_exit;
215         }
216 
217         err = mantis_dma_init(mantis);
218         if (err < 0) {
219                 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DMA initialization failed <%d>", err);
220                 goto err_i2c_exit;
221         }
222 
223         err = mantis_dvb_init(mantis);
224         if (err < 0) {
225                 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DVB initialization failed <%d>", err);
226                 goto err_dma_exit;
227         }
228 
229         err = mantis_input_init(mantis);
230         if (err < 0) {
231                 dprintk(MANTIS_ERROR, 1,
232                         "ERROR: Mantis DVB initialization failed <%d>", err);
233                 goto err_dvb_exit;
234         }
235 
236         err = mantis_uart_init(mantis);
237         if (err < 0) {
238                 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis UART initialization failed <%d>", err);
239                 goto err_input_exit;
240         }
241 
242         devs++;
243 
244         return 0;
245 
246 err_input_exit:
247         mantis_input_exit(mantis);
248 
249 err_dvb_exit:
250         mantis_dvb_exit(mantis);
251 
252 err_dma_exit:
253         mantis_dma_exit(mantis);
254 
255 err_i2c_exit:
256         mantis_i2c_exit(mantis);
257 
258 err_pci_exit:
259         mantis_pci_exit(mantis);
260 
261 err_free_mantis:
262         kfree(mantis);
263 
264         return err;
265 }
266 
267 static void mantis_pci_remove(struct pci_dev *pdev)
268 {
269         struct mantis_pci *mantis = pci_get_drvdata(pdev);
270 
271         if (mantis) {
272 
273                 mantis_uart_exit(mantis);
274                 mantis_input_exit(mantis);
275                 mantis_dvb_exit(mantis);
276                 mantis_dma_exit(mantis);
277                 mantis_i2c_exit(mantis);
278                 mantis_pci_exit(mantis);
279                 kfree(mantis);
280         }
281         return;
282 }
283 
284 static struct pci_device_id mantis_pci_table[] = {
285         MAKE_ENTRY(TECHNISAT, CABLESTAR_HD2, &vp2040_config,
286                    RC_MAP_TECHNISAT_TS35),
287         MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_10, &vp1041_config,
288                    NULL),
289         MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_20, &vp1041_config,
290                    NULL),
291         MAKE_ENTRY(TERRATEC, CINERGY_C, &vp2040_config,
292                    RC_MAP_TERRATEC_CINERGY_C_PCI),
293         MAKE_ENTRY(TERRATEC, CINERGY_S2_PCI_HD, &vp1041_config,
294                    RC_MAP_TERRATEC_CINERGY_S2_HD),
295         MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1033_DVB_S, &vp1033_config,
296                    NULL),
297         MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1034_DVB_S, &vp1034_config,
298                    NULL),
299         MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1041_DVB_S2, &vp1041_config,
300                    RC_MAP_TWINHAN_DTV_CAB_CI),
301         MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2033_DVB_C, &vp2033_config,
302                    RC_MAP_TWINHAN_DTV_CAB_CI),
303         MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2040_DVB_C, &vp2040_config,
304                    NULL),
305         MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_3030_DVB_T, &vp3030_config,
306                    NULL),
307         { }
308 };
309 
310 MODULE_DEVICE_TABLE(pci, mantis_pci_table);
311 
312 static struct pci_driver mantis_pci_driver = {
313         .name           = DRIVER_NAME,
314         .id_table       = mantis_pci_table,
315         .probe          = mantis_pci_probe,
316         .remove         = mantis_pci_remove,
317 };
318 
319 module_pci_driver(mantis_pci_driver);
320 
321 MODULE_DESCRIPTION("MANTIS driver");
322 MODULE_AUTHOR("Manu Abraham");
323 MODULE_LICENSE("GPL");
324 

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