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 "mantis_common.h"
22#include "mantis_core.h"
23#include "mantis_vp1033.h"
24#include "mantis_vp1034.h"
25#include "mantis_vp1041.h"
26#include "mantis_vp2033.h"
27#include "mantis_vp2040.h"
28#include "mantis_vp3030.h"
29
30static int read_eeprom_byte(struct mantis_pci *mantis, u8 *data, u8 length)
31{
32	int err;
33	struct i2c_msg msg[] = {
34		{
35			.addr = 0x50,
36			.flags = 0,
37			.buf = data,
38			.len = 1
39		}, {
40			.addr = 0x50,
41			.flags = I2C_M_RD,
42			.buf = data,
43			.len = length
44		},
45	};
46
47	err = i2c_transfer(&mantis->adapter, msg, 2);
48	if (err < 0) {
49		dprintk(verbose, MANTIS_ERROR, 1,
50			"ERROR: i2c read: < err=%i d0=0x%02x d1=0x%02x >",
51			err, data[0], data[1]);
52
53		return err;
54	}
55
56	return 0;
57}
58
59static int get_mac_address(struct mantis_pci *mantis)
60{
61	int err;
62
63	mantis->mac_address[0] = 0x08;
64	err = read_eeprom_byte(mantis, &mantis->mac_address[0], 6);
65	if (err < 0) {
66		dprintk(verbose, MANTIS_ERROR, 1, "Mantis EEPROM read error");
67
68		return err;
69	}
70	dprintk(verbose, MANTIS_ERROR, 0,
71		"    MAC Address=[%pM]\n", mantis->mac_address);
72
73	return 0;
74}
75
76#define MANTIS_MODEL_UNKNOWN	"UNKNOWN"
77#define MANTIS_DEV_UNKNOWN	"UNKNOWN"
78
79struct mantis_hwconfig unknown_device = {
80	.model_name	= MANTIS_MODEL_UNKNOWN,
81	.dev_type	= MANTIS_DEV_UNKNOWN,
82};
83
84static void mantis_load_config(struct mantis_pci *mantis)
85{
86	switch (mantis->subsystem_device) {
87	case MANTIS_VP_1033_DVB_S:	/* VP-1033 */
88		mantis->hwconfig = &vp1033_mantis_config;
89		break;
90	case MANTIS_VP_1034_DVB_S:	/* VP-1034 */
91		mantis->hwconfig = &vp1034_mantis_config;
92		break;
93	case MANTIS_VP_1041_DVB_S2:	/* VP-1041 */
94	case TECHNISAT_SKYSTAR_HD2:
95		mantis->hwconfig = &vp1041_mantis_config;
96		break;
97	case MANTIS_VP_2033_DVB_C:	/* VP-2033 */
98		mantis->hwconfig = &vp2033_mantis_config;
99		break;
100	case MANTIS_VP_2040_DVB_C:	/* VP-2040 */
101	case CINERGY_C:	/* VP-2040 clone */
102	case TECHNISAT_CABLESTAR_HD2:
103		mantis->hwconfig = &vp2040_mantis_config;
104		break;
105	case MANTIS_VP_3030_DVB_T:	/* VP-3030 */
106		mantis->hwconfig = &vp3030_mantis_config;
107		break;
108	default:
109		mantis->hwconfig = &unknown_device;
110		break;
111	}
112}
113
114int mantis_core_init(struct mantis_pci *mantis)
115{
116	int err = 0;
117
118	mantis_load_config(mantis);
119	dprintk(verbose, MANTIS_ERROR, 0, "found a %s PCI %s device on (%02x:%02x.%x),\n",
120		mantis->hwconfig->model_name, mantis->hwconfig->dev_type,
121		mantis->pdev->bus->number, PCI_SLOT(mantis->pdev->devfn), PCI_FUNC(mantis->pdev->devfn));
122	dprintk(verbose, MANTIS_ERROR, 0, "    Mantis Rev %d [%04x:%04x], ",
123		mantis->revision,
124		mantis->subsystem_vendor, mantis->subsystem_device);
125	dprintk(verbose, MANTIS_ERROR, 0,
126		"irq: %d, latency: %d\n    memory: 0x%lx, mmio: 0x%p\n",
127		mantis->pdev->irq, mantis->latency,
128		mantis->mantis_addr, mantis->mantis_mmio);
129
130	err = mantis_i2c_init(mantis);
131	if (err < 0) {
132		dprintk(verbose, MANTIS_ERROR, 1, "Mantis I2C init failed");
133		return err;
134	}
135	err = get_mac_address(mantis);
136	if (err < 0) {
137		dprintk(verbose, MANTIS_ERROR, 1, "get MAC address failed");
138		return err;
139	}
140	err = mantis_dma_init(mantis);
141	if (err < 0) {
142		dprintk(verbose, MANTIS_ERROR, 1, "Mantis DMA init failed");
143		return err;
144	}
145	err = mantis_dvb_init(mantis);
146	if (err < 0) {
147		dprintk(verbose, MANTIS_DEBUG, 1, "Mantis DVB init failed");
148		return err;
149	}
150	err = mantis_uart_init(mantis);
151	if (err < 0) {
152		dprintk(verbose, MANTIS_DEBUG, 1, "Mantis UART init failed");
153		return err;
154	}
155
156	return 0;
157}
158
159int mantis_core_exit(struct mantis_pci *mantis)
160{
161	mantis_dma_stop(mantis);
162	dprintk(verbose, MANTIS_ERROR, 1, "DMA engine stopping");
163
164	mantis_uart_exit(mantis);
165	dprintk(verbose, MANTIS_ERROR, 1, "UART exit failed");
166
167	if (mantis_dma_exit(mantis) < 0)
168		dprintk(verbose, MANTIS_ERROR, 1, "DMA exit failed");
169	if (mantis_dvb_exit(mantis) < 0)
170		dprintk(verbose, MANTIS_ERROR, 1, "DVB exit failed");
171	if (mantis_i2c_exit(mantis) < 0)
172		dprintk(verbose, MANTIS_ERROR, 1, "I2C adapter delete.. failed");
173
174	return 0;
175}
176
177/* Turn the given bit on or off. */
178void gpio_set_bits(struct mantis_pci *mantis, u32 bitpos, u8 value)
179{
180	u32 cur;
181
182	cur = mmread(MANTIS_GPIF_ADDR);
183	if (value)
184		mantis->gpio_status = cur | (1 << bitpos);
185	else
186		mantis->gpio_status = cur & (~(1 << bitpos));
187
188	mmwrite(mantis->gpio_status, MANTIS_GPIF_ADDR);
189	mmwrite(0x00, MANTIS_GPIF_DOUT);
190	udelay(100);
191}
192
193/* direction = 0 , no CI passthrough ; 1 , CI passthrough */
194void mantis_set_direction(struct mantis_pci *mantis, int direction)
195{
196	u32 reg;
197
198	reg = mmread(0x28);
199	dprintk(verbose, MANTIS_DEBUG, 1, "TS direction setup");
200	if (direction == 0x01) {
201		/* to CI */
202		reg |= 0x04;
203		mmwrite(reg, 0x28);
204		reg &= 0xff - 0x04;
205		mmwrite(reg, 0x28);
206	} else {
207		reg &= 0xff - 0x04;
208		mmwrite(reg, 0x28);
209		reg |= 0x04;
210		mmwrite(reg, 0x28);
211	}
212}
213