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/kernel.h>
23 #include <linux/pci.h>
24 #include <linux/slab.h>
25 #include <asm/irq.h>
26 #include <linux/interrupt.h>
27 #include <media/rc-map.h>
28 
29 #include <media/dmxdev.h>
30 #include <media/dvbdev.h>
31 #include <media/dvb_demux.h>
32 #include <media/dvb_frontend.h>
33 #include <media/dvb_net.h>
34 
35 #include "mantis_common.h"
36 
37 #include "mantis_vp1033.h"
38 #include "mantis_vp1034.h"
39 #include "mantis_vp1041.h"
40 #include "mantis_vp2033.h"
41 #include "mantis_vp2040.h"
42 #include "mantis_vp3030.h"
43 
44 #include "mantis_dma.h"
45 #include "mantis_ca.h"
46 #include "mantis_dvb.h"
47 #include "mantis_uart.h"
48 #include "mantis_ioc.h"
49 #include "mantis_pci.h"
50 #include "mantis_i2c.h"
51 #include "mantis_reg.h"
52 #include "mantis_input.h"
53 
54 static unsigned int verbose;
55 module_param(verbose, int, 0644);
56 MODULE_PARM_DESC(verbose, "verbose startup messages, default is 0 (no)");
57 
58 static int devs;
59 
60 #define DRIVER_NAME	"Mantis"
61 
62 static char *label[10] = {
63 	"DMA",
64 	"IRQ-0",
65 	"IRQ-1",
66 	"OCERR",
67 	"PABRT",
68 	"RIPRR",
69 	"PPERR",
70 	"FTRGT",
71 	"RISCI",
72 	"RACK"
73 };
74 
75 static irqreturn_t mantis_irq_handler(int irq, void *dev_id)
76 {
77 	u32 stat = 0, mask = 0;
78 	u32 rst_stat = 0, rst_mask = 0;
79 
80 	struct mantis_pci *mantis;
81 	struct mantis_ca *ca;
82 
83 	mantis = (struct mantis_pci *) dev_id;
84 	if (unlikely(mantis == NULL)) {
85 		dprintk(MANTIS_ERROR, 1, "Mantis == NULL");
86 		return IRQ_NONE;
87 	}
88 	ca = mantis->mantis_ca;
89 
90 	stat = mmread(MANTIS_INT_STAT);
91 	mask = mmread(MANTIS_INT_MASK);
92 	if (!(stat & mask))
93 		return IRQ_NONE;
94 
95 	rst_mask  = MANTIS_GPIF_WRACK  |
96 		    MANTIS_GPIF_OTHERR |
97 		    MANTIS_SBUF_WSTO   |
98 		    MANTIS_GPIF_EXTIRQ;
99 
100 	rst_stat  = mmread(MANTIS_GPIF_STATUS);
101 	rst_stat &= rst_mask;
102 	mmwrite(rst_stat, MANTIS_GPIF_STATUS);
103 
104 	mantis->mantis_int_stat = stat;
105 	mantis->mantis_int_mask = mask;
106 	dprintk(MANTIS_DEBUG, 0, "\n-- Stat=<%02x> Mask=<%02x> --", stat, mask);
107 	if (stat & MANTIS_INT_RISCEN) {
108 		dprintk(MANTIS_DEBUG, 0, "<%s>", label[0]);
109 	}
110 	if (stat & MANTIS_INT_IRQ0) {
111 		dprintk(MANTIS_DEBUG, 0, "<%s>", label[1]);
112 		mantis->gpif_status = rst_stat;
113 		wake_up(&ca->hif_write_wq);
114 		schedule_work(&ca->hif_evm_work);
115 	}
116 	if (stat & MANTIS_INT_IRQ1) {
117 		dprintk(MANTIS_DEBUG, 0, "<%s>", label[2]);
118 		spin_lock(&mantis->intmask_lock);
119 		mmwrite(mmread(MANTIS_INT_MASK) & ~MANTIS_INT_IRQ1,
120 			MANTIS_INT_MASK);
121 		spin_unlock(&mantis->intmask_lock);
122 		schedule_work(&mantis->uart_work);
123 	}
124 	if (stat & MANTIS_INT_OCERR) {
125 		dprintk(MANTIS_DEBUG, 0, "<%s>", label[3]);
126 	}
127 	if (stat & MANTIS_INT_PABORT) {
128 		dprintk(MANTIS_DEBUG, 0, "<%s>", label[4]);
129 	}
130 	if (stat & MANTIS_INT_RIPERR) {
131 		dprintk(MANTIS_DEBUG, 0, "<%s>", label[5]);
132 	}
133 	if (stat & MANTIS_INT_PPERR) {
134 		dprintk(MANTIS_DEBUG, 0, "<%s>", label[6]);
135 	}
136 	if (stat & MANTIS_INT_FTRGT) {
137 		dprintk(MANTIS_DEBUG, 0, "<%s>", label[7]);
138 	}
139 	if (stat & MANTIS_INT_RISCI) {
140 		dprintk(MANTIS_DEBUG, 0, "<%s>", label[8]);
141 		mantis->busy_block = (stat & MANTIS_INT_RISCSTAT) >> 28;
142 		tasklet_schedule(&mantis->tasklet);
143 	}
144 	if (stat & MANTIS_INT_I2CDONE) {
145 		dprintk(MANTIS_DEBUG, 0, "<%s>", label[9]);
146 		wake_up(&mantis->i2c_wq);
147 	}
148 	mmwrite(stat, MANTIS_INT_STAT);
149 	stat &= ~(MANTIS_INT_RISCEN   | MANTIS_INT_I2CDONE |
150 		  MANTIS_INT_I2CRACK  | MANTIS_INT_PCMCIA7 |
151 		  MANTIS_INT_PCMCIA6  | MANTIS_INT_PCMCIA5 |
152 		  MANTIS_INT_PCMCIA4  | MANTIS_INT_PCMCIA3 |
153 		  MANTIS_INT_PCMCIA2  | MANTIS_INT_PCMCIA1 |
154 		  MANTIS_INT_PCMCIA0  | MANTIS_INT_IRQ1	   |
155 		  MANTIS_INT_IRQ0     | MANTIS_INT_OCERR   |
156 		  MANTIS_INT_PABORT   | MANTIS_INT_RIPERR  |
157 		  MANTIS_INT_PPERR    | MANTIS_INT_FTRGT   |
158 		  MANTIS_INT_RISCI);
159 
160 	if (stat)
161 		dprintk(MANTIS_DEBUG, 0, "<Unknown> Stat=<%02x> Mask=<%02x>", stat, mask);
162 
163 	dprintk(MANTIS_DEBUG, 0, "\n");
164 	return IRQ_HANDLED;
165 }
166 
167 static int mantis_pci_probe(struct pci_dev *pdev,
168 			    const struct pci_device_id *pci_id)
169 {
170 	struct mantis_pci_drvdata *drvdata;
171 	struct mantis_pci *mantis;
172 	struct mantis_hwconfig *config;
173 	int err;
174 
175 	mantis = kzalloc(sizeof(*mantis), GFP_KERNEL);
176 	if (!mantis)
177 		return -ENOMEM;
178 
179 	drvdata			= (void *)pci_id->driver_data;
180 	mantis->num		= devs;
181 	mantis->verbose		= verbose;
182 	mantis->pdev		= pdev;
183 	config			= drvdata->hwconfig;
184 	config->irq_handler	= &mantis_irq_handler;
185 	mantis->hwconfig	= config;
186 	mantis->rc_map_name	= drvdata->rc_map_name;
187 
188 	spin_lock_init(&mantis->intmask_lock);
189 
190 	err = mantis_pci_init(mantis);
191 	if (err) {
192 		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis PCI initialization failed <%d>", err);
193 		goto err_free_mantis;
194 	}
195 
196 	err = mantis_stream_control(mantis, STREAM_TO_HIF);
197 	if (err < 0) {
198 		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis stream control failed <%d>", err);
199 		goto err_pci_exit;
200 	}
201 
202 	err = mantis_i2c_init(mantis);
203 	if (err < 0) {
204 		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis I2C initialization failed <%d>", err);
205 		goto err_pci_exit;
206 	}
207 
208 	err = mantis_get_mac(mantis);
209 	if (err < 0) {
210 		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis MAC address read failed <%d>", err);
211 		goto err_i2c_exit;
212 	}
213 
214 	err = mantis_dma_init(mantis);
215 	if (err < 0) {
216 		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DMA initialization failed <%d>", err);
217 		goto err_i2c_exit;
218 	}
219 
220 	err = mantis_dvb_init(mantis);
221 	if (err < 0) {
222 		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DVB initialization failed <%d>", err);
223 		goto err_dma_exit;
224 	}
225 
226 	err = mantis_input_init(mantis);
227 	if (err < 0) {
228 		dprintk(MANTIS_ERROR, 1,
229 			"ERROR: Mantis DVB initialization failed <%d>", err);
230 		goto err_dvb_exit;
231 	}
232 
233 	err = mantis_uart_init(mantis);
234 	if (err < 0) {
235 		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis UART initialization failed <%d>", err);
236 		goto err_input_exit;
237 	}
238 
239 	devs++;
240 
241 	return 0;
242 
243 err_input_exit:
244 	mantis_input_exit(mantis);
245 
246 err_dvb_exit:
247 	mantis_dvb_exit(mantis);
248 
249 err_dma_exit:
250 	mantis_dma_exit(mantis);
251 
252 err_i2c_exit:
253 	mantis_i2c_exit(mantis);
254 
255 err_pci_exit:
256 	mantis_pci_exit(mantis);
257 
258 err_free_mantis:
259 	kfree(mantis);
260 
261 	return err;
262 }
263 
264 static void mantis_pci_remove(struct pci_dev *pdev)
265 {
266 	struct mantis_pci *mantis = pci_get_drvdata(pdev);
267 
268 	if (mantis) {
269 
270 		mantis_uart_exit(mantis);
271 		mantis_input_exit(mantis);
272 		mantis_dvb_exit(mantis);
273 		mantis_dma_exit(mantis);
274 		mantis_i2c_exit(mantis);
275 		mantis_pci_exit(mantis);
276 		kfree(mantis);
277 	}
278 	return;
279 }
280 
281 static const struct pci_device_id mantis_pci_table[] = {
282 	MAKE_ENTRY(TECHNISAT, CABLESTAR_HD2, &vp2040_config,
283 		   RC_MAP_TECHNISAT_TS35),
284 	MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_10, &vp1041_config,
285 		   NULL),
286 	MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_20, &vp1041_config,
287 		   NULL),
288 	MAKE_ENTRY(TERRATEC, CINERGY_C, &vp2040_config,
289 		   RC_MAP_TERRATEC_CINERGY_C_PCI),
290 	MAKE_ENTRY(TERRATEC, CINERGY_S2_PCI_HD, &vp1041_config,
291 		   RC_MAP_TERRATEC_CINERGY_S2_HD),
292 	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1033_DVB_S, &vp1033_config,
293 		   NULL),
294 	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1034_DVB_S, &vp1034_config,
295 		   NULL),
296 	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1041_DVB_S2, &vp1041_config,
297 		   RC_MAP_TWINHAN_DTV_CAB_CI),
298 	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2033_DVB_C, &vp2033_config,
299 		   RC_MAP_TWINHAN_DTV_CAB_CI),
300 	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2040_DVB_C, &vp2040_config,
301 		   NULL),
302 	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_3030_DVB_T, &vp3030_config,
303 		   NULL),
304 	{ }
305 };
306 
307 MODULE_DEVICE_TABLE(pci, mantis_pci_table);
308 
309 static struct pci_driver mantis_pci_driver = {
310 	.name		= DRIVER_NAME,
311 	.id_table	= mantis_pci_table,
312 	.probe		= mantis_pci_probe,
313 	.remove		= mantis_pci_remove,
314 };
315 
316 module_pci_driver(mantis_pci_driver);
317 
318 MODULE_DESCRIPTION("MANTIS driver");
319 MODULE_AUTHOR("Manu Abraham");
320 MODULE_LICENSE("GPL");
321