[deliverable/linux.git] / drivers / staging / solo6x10 / solo6010-core.c

/*
 * Copyright (C) 2010 Bluecherry, LLC www.bluecherrydvr.com
 * Copyright (C) 2010 Ben Collins <bcollins@bluecherry.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/videodev2.h>

#include "solo6010.h"
#include "solo6010-tw28.h"

MODULE_DESCRIPTION("Softlogic 6010 MP4 Encoder/Decoder V4L2/ALSA Driver");
MODULE_AUTHOR("Ben Collins <bcollins@bluecherry.net>");
MODULE_VERSION(SOLO6010_VERSION);
MODULE_LICENSE("GPL");

void solo6010_irq_on(struct solo6010_dev *solo_dev, u32 mask)
{
	solo_dev->irq_mask |= mask;
	solo_reg_write(solo_dev, SOLO_IRQ_ENABLE, solo_dev->irq_mask);
}

void solo6010_irq_off(struct solo6010_dev *solo_dev, u32 mask)
{
	solo_dev->irq_mask &= ~mask;
	solo_reg_write(solo_dev, SOLO_IRQ_ENABLE, solo_dev->irq_mask);
}

/* XXX We should check the return value of the sub-device ISR's */
static irqreturn_t solo6010_isr(int irq, void *data)
{
	struct solo6010_dev *solo_dev = data;
	u32 status;
	int i;

	status = solo_reg_read(solo_dev, SOLO_IRQ_STAT);
	if (!status)
		return IRQ_NONE;

	if (status & ~solo_dev->irq_mask) {
		solo_reg_write(solo_dev, SOLO_IRQ_STAT,
			       status & ~solo_dev->irq_mask);
		status &= solo_dev->irq_mask;
	}

	if (status & SOLO_IRQ_PCI_ERR) {
		u32 err = solo_reg_read(solo_dev, SOLO_PCI_ERR);
		solo_p2m_error_isr(solo_dev, err);
		solo_reg_write(solo_dev, SOLO_IRQ_STAT, SOLO_IRQ_PCI_ERR);
	}

	for (i = 0; i < SOLO_NR_P2M; i++)
		if (status & SOLO_IRQ_P2M(i))
			solo_p2m_isr(solo_dev, i);

	if (status & SOLO_IRQ_IIC)
		solo_i2c_isr(solo_dev);

	if (status & SOLO_IRQ_VIDEO_IN)
		solo_video_in_isr(solo_dev);

	/* Call this first so enc gets detected flag set */
	if (status & SOLO_IRQ_MOTION)
		solo_motion_isr(solo_dev);

	if (status & SOLO_IRQ_ENCODER)
		solo_enc_v4l2_isr(solo_dev);

	if (status & SOLO_IRQ_G723)
		solo_g723_isr(solo_dev);

	return IRQ_HANDLED;
}

static void free_solo_dev(struct solo6010_dev *solo_dev)
{
	struct pci_dev *pdev;

	if (!solo_dev)
		return;

	pdev = solo_dev->pdev;

	/* If we never initialized the PCI device, then nothing else
	 * below here needs cleanup */
	if (!pdev) {
		kfree(solo_dev);
		return;
	}

	/* Bring down the sub-devices first */
	solo_g723_exit(solo_dev);
	solo_enc_v4l2_exit(solo_dev);
	solo_enc_exit(solo_dev);
	solo_v4l2_exit(solo_dev);
	solo_disp_exit(solo_dev);
	solo_gpio_exit(solo_dev);
	solo_p2m_exit(solo_dev);
	solo_i2c_exit(solo_dev);

	/* Now cleanup the PCI device */
	if (solo_dev->reg_base) {
		solo6010_irq_off(solo_dev, ~0);
		pci_iounmap(pdev, solo_dev->reg_base);
		free_irq(pdev->irq, solo_dev);
	}

	pci_release_regions(pdev);
	pci_disable_device(pdev);
	pci_set_drvdata(pdev, NULL);

	kfree(solo_dev);
}

static int __devinit solo6010_pci_probe(struct pci_dev *pdev,
					const struct pci_device_id *id)
{
	struct solo6010_dev *solo_dev;
	int ret;
	int sdram;
	u8 chip_id;
	solo_dev = kzalloc(sizeof(*solo_dev), GFP_KERNEL);
	if (solo_dev == NULL)
		return -ENOMEM;

	solo_dev->pdev = pdev;
	spin_lock_init(&solo_dev->reg_io_lock);
	pci_set_drvdata(pdev, solo_dev);

	ret = pci_enable_device(pdev);
	if (ret)
		goto fail_probe;

	pci_set_master(pdev);

	ret = pci_request_regions(pdev, SOLO6010_NAME);
	if (ret)
		goto fail_probe;

	solo_dev->reg_base = pci_ioremap_bar(pdev, 0);
	if (solo_dev->reg_base == NULL) {
		ret = -ENOMEM;
		goto fail_probe;
	}

	chip_id = solo_reg_read(solo_dev, SOLO_CHIP_OPTION) &
					SOLO_CHIP_ID_MASK;
	switch (chip_id) {
		case 7:
			solo_dev->nr_chans = 16;
			solo_dev->nr_ext = 5;
			break;
		case 6:
			solo_dev->nr_chans = 8;
			solo_dev->nr_ext = 2;
			break;
		default:
			dev_warn(&pdev->dev, "Invalid chip_id 0x%02x, "
				 "defaulting to 4 channels\n",
				 chip_id);
		case 5:
			solo_dev->nr_chans = 4;
			solo_dev->nr_ext = 1;
	}

	/* Disable all interrupts to start */
	solo6010_irq_off(solo_dev, ~0);

	/* Initial global settings */
	solo_reg_write(solo_dev, SOLO_SYS_CFG, SOLO_SYS_CFG_SDRAM64BIT |
		       SOLO_SYS_CFG_INPUTDIV(25) |
		       SOLO_SYS_CFG_FEEDBACKDIV((SOLO_CLOCK_MHZ * 2) - 2) |
		       SOLO_SYS_CFG_OUTDIV(3));
	solo_reg_write(solo_dev, SOLO_TIMER_CLOCK_NUM, SOLO_CLOCK_MHZ - 1);

	/* PLL locking time of 1ms */
	mdelay(1);

	ret = request_irq(pdev->irq, solo6010_isr, IRQF_SHARED, SOLO6010_NAME,
			  solo_dev);
	if (ret)
		goto fail_probe;

	/* Handle this from the start */
	solo6010_irq_on(solo_dev, SOLO_IRQ_PCI_ERR);

	ret = solo_i2c_init(solo_dev);
	if (ret)
		goto fail_probe;

	/* Setup the DMA engine */
	sdram = (solo_dev->nr_chans >= 8) ? 2 : 1;
	solo_reg_write(solo_dev, SOLO_DMA_CTRL,
		       SOLO_DMA_CTRL_REFRESH_CYCLE(1) |
		       SOLO_DMA_CTRL_SDRAM_SIZE(sdram) |
		       SOLO_DMA_CTRL_SDRAM_CLK_INVERT |
		       SOLO_DMA_CTRL_READ_CLK_SELECT |
		       SOLO_DMA_CTRL_LATENCY(1));

	ret = solo_p2m_init(solo_dev);
	if (ret)
		goto fail_probe;

	ret = solo_disp_init(solo_dev);
	if (ret)
		goto fail_probe;

	ret = solo_gpio_init(solo_dev);
	if (ret)
		goto fail_probe;

	ret = solo_tw28_init(solo_dev);
	if (ret)
		goto fail_probe;

	ret = solo_v4l2_init(solo_dev);
	if (ret)
		goto fail_probe;

	ret = solo_enc_init(solo_dev);
	if (ret)
		goto fail_probe;

	ret = solo_enc_v4l2_init(solo_dev);
	if (ret)
		goto fail_probe;

	ret = solo_g723_init(solo_dev);
	if (ret)
		goto fail_probe;

	return 0;

fail_probe:
	free_solo_dev(solo_dev);
	return ret;
}

static void __devexit solo6010_pci_remove(struct pci_dev *pdev)
{
	struct solo6010_dev *solo_dev = pci_get_drvdata(pdev);

	free_solo_dev(solo_dev);
}

static struct pci_device_id solo6010_id_table[] = {
	{PCI_DEVICE(PCI_VENDOR_ID_SOFTLOGIC, PCI_DEVICE_ID_SOLO6010)},
	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_NEUSOLO_4)},
	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_NEUSOLO_9)},
	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_NEUSOLO_16)},
	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_COMMSOLO_4)},
	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_COMMSOLO_9)},
	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_COMMSOLO_16)},
	{0,}
};

MODULE_DEVICE_TABLE(pci, solo6010_id_table);

static struct pci_driver solo6010_pci_driver = {
	.name = SOLO6010_NAME,
	.id_table = solo6010_id_table,
	.probe = solo6010_pci_probe,
	.remove = solo6010_pci_remove,
};

static int __init solo6010_module_init(void)
{
	return pci_register_driver(&solo6010_pci_driver);
}

static void __exit solo6010_module_exit(void)
{
	pci_unregister_driver(&solo6010_pci_driver);
}

module_init(solo6010_module_init);
module_exit(solo6010_module_exit);
Commit	Line	Data
faa4fd2a BC	1	/*
	2	* Copyright (C) 2010 Bluecherry, LLC www.bluecherrydvr.com
	3	* Copyright (C) 2010 Ben Collins <bcollins@bluecherry.net>
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License as published by
	7	* the Free Software Foundation; either version 2 of the License, or
	8	* (at your option) any later version.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	18	*/
	19
	20	#include <linux/kernel.h>
	21	#include <linux/module.h>
	22	#include <linux/pci.h>
	23	#include <linux/interrupt.h>
	24	#include <linux/videodev2.h>
	25
	26	#include "solo6010.h"
	27	#include "solo6010-tw28.h"
	28
	29	MODULE_DESCRIPTION("Softlogic 6010 MP4 Encoder/Decoder V4L2/ALSA Driver");
	30	MODULE_AUTHOR("Ben Collins <bcollins@bluecherry.net>");
	31	MODULE_VERSION(SOLO6010_VERSION);
	32	MODULE_LICENSE("GPL");
	33
	34	void solo6010_irq_on(struct solo6010_dev *solo_dev, u32 mask)
	35	{
	36	solo_dev->irq_mask \|= mask;
	37	solo_reg_write(solo_dev, SOLO_IRQ_ENABLE, solo_dev->irq_mask);
	38	}
	39
	40	void solo6010_irq_off(struct solo6010_dev *solo_dev, u32 mask)
	41	{
	42	solo_dev->irq_mask &= ~mask;
	43	solo_reg_write(solo_dev, SOLO_IRQ_ENABLE, solo_dev->irq_mask);
	44	}
	45
	46	/* XXX We should check the return value of the sub-device ISR's */
	47	static irqreturn_t solo6010_isr(int irq, void *data)
	48	{
	49	struct solo6010_dev *solo_dev = data;
	50	u32 status;
	51	int i;
	52
	53	status = solo_reg_read(solo_dev, SOLO_IRQ_STAT);
	54	if (!status)
	55	return IRQ_NONE;
	56
	57	if (status & ~solo_dev->irq_mask) {
	58	solo_reg_write(solo_dev, SOLO_IRQ_STAT,
	59	status & ~solo_dev->irq_mask);
	60	status &= solo_dev->irq_mask;
	61	}
	62
	63	if (status & SOLO_IRQ_PCI_ERR) {
	64	u32 err = solo_reg_read(solo_dev, SOLO_PCI_ERR);
65	solo_p2m_error_isr(solo_dev, err);
66	solo_reg_write(solo_dev, SOLO_IRQ_STAT, SOLO_IRQ_PCI_ERR);
67	}
68
69	for (i = 0; i < SOLO_NR_P2M; i++)
70	if (status & SOLO_IRQ_P2M(i))
71	solo_p2m_isr(solo_dev, i);
72
73	if (status & SOLO_IRQ_IIC)
74	solo_i2c_isr(solo_dev);
75
76	if (status & SOLO_IRQ_VIDEO_IN)
77	solo_video_in_isr(solo_dev);
78
79	/* Call this first so enc gets detected flag set */
80	if (status & SOLO_IRQ_MOTION)
81	solo_motion_isr(solo_dev);
82
83	if (status & SOLO_IRQ_ENCODER)
84	solo_enc_v4l2_isr(solo_dev);
85
86	if (status & SOLO_IRQ_G723)
87	solo_g723_isr(solo_dev);
88
89	return IRQ_HANDLED;
90	}
91
92	static void free_solo_dev(struct solo6010_dev *solo_dev)
93	{
94	struct pci_dev *pdev;
95
96	if (!solo_dev)
97	return;
98
99	pdev = solo_dev->pdev;
100
101	/* If we never initialized the PCI device, then nothing else
102	* below here needs cleanup */
103	if (!pdev) {
104	kfree(solo_dev);
105	return;
106	}
107
108	/* Bring down the sub-devices first */
109	solo_g723_exit(solo_dev);
110	solo_enc_v4l2_exit(solo_dev);
111	solo_enc_exit(solo_dev);
112	solo_v4l2_exit(solo_dev);
113	solo_disp_exit(solo_dev);
114	solo_gpio_exit(solo_dev);
115	solo_p2m_exit(solo_dev);
116	solo_i2c_exit(solo_dev);
117
118	/* Now cleanup the PCI device */
119	if (solo_dev->reg_base) {
120	solo6010_irq_off(solo_dev, ~0);
121	pci_iounmap(pdev, solo_dev->reg_base);
122	free_irq(pdev->irq, solo_dev);
123	}
124
125	pci_release_regions(pdev);
126	pci_disable_device(pdev);
127	pci_set_drvdata(pdev, NULL);
128
129	kfree(solo_dev);
130	}
131
132	static int __devinit solo6010_pci_probe(struct pci_dev *pdev,
133	const struct pci_device_id *id)
134	{
135	struct solo6010_dev *solo_dev;
136	int ret;
137	int sdram;
138	u8 chip_id;
15300c1d PS	139	solo_dev = kzalloc(sizeof(*solo_dev), GFP_KERNEL);
15300c1d PS	140	if (solo_dev == NULL)
faa4fd2a BC	141	return -ENOMEM;
	142
	143	solo_dev->pdev = pdev;
	144	spin_lock_init(&solo_dev->reg_io_lock);
	145	pci_set_drvdata(pdev, solo_dev);
	146
15300c1d PS	147	ret = pci_enable_device(pdev);
15300c1d PS	148	if (ret)
faa4fd2a BC	149	goto fail_probe;
	150
	151	pci_set_master(pdev);
	152
15300c1d PS	153	ret = pci_request_regions(pdev, SOLO6010_NAME);
15300c1d PS	154	if (ret)
faa4fd2a BC	155	goto fail_probe;
faa4fd2a BC	156
15300c1d PS	157	solo_dev->reg_base = pci_ioremap_bar(pdev, 0);
15300c1d PS	158	if (solo_dev->reg_base == NULL) {
faa4fd2a BC	159	ret = -ENOMEM;
	160	goto fail_probe;
	161	}
	162
	163	chip_id = solo_reg_read(solo_dev, SOLO_CHIP_OPTION) &
	164	SOLO_CHIP_ID_MASK;
	165	switch (chip_id) {
	166	case 7:
	167	solo_dev->nr_chans = 16;
	168	solo_dev->nr_ext = 5;
	169	break;
	170	case 6:
	171	solo_dev->nr_chans = 8;
	172	solo_dev->nr_ext = 2;
	173	break;
	174	default:
	175	dev_warn(&pdev->dev, "Invalid chip_id 0x%02x, "
	176	"defaulting to 4 channels\n",
	177	chip_id);
	178	case 5:
	179	solo_dev->nr_chans = 4;
	180	solo_dev->nr_ext = 1;
	181	}
	182
	183	/* Disable all interrupts to start */
	184	solo6010_irq_off(solo_dev, ~0);
	185
	186	/* Initial global settings */
	187	solo_reg_write(solo_dev, SOLO_SYS_CFG, SOLO_SYS_CFG_SDRAM64BIT \|
	188	SOLO_SYS_CFG_INPUTDIV(25) \|
	189	SOLO_SYS_CFG_FEEDBACKDIV((SOLO_CLOCK_MHZ * 2) - 2) \|
	190	SOLO_SYS_CFG_OUTDIV(3));
	191	solo_reg_write(solo_dev, SOLO_TIMER_CLOCK_NUM, SOLO_CLOCK_MHZ - 1);
	192
	193	/* PLL locking time of 1ms */
	194	mdelay(1);
	195
	196	ret = request_irq(pdev->irq, solo6010_isr, IRQF_SHARED, SOLO6010_NAME,
	197	solo_dev);
	198	if (ret)
	199	goto fail_probe;
	200
	201	/* Handle this from the start */
	202	solo6010_irq_on(solo_dev, SOLO_IRQ_PCI_ERR);
	203
15300c1d PS	204	ret = solo_i2c_init(solo_dev);
15300c1d PS	205	if (ret)
faa4fd2a BC	206	goto fail_probe;
	207
	208	/* Setup the DMA engine */
	209	sdram = (solo_dev->nr_chans >= 8) ? 2 : 1;
	210	solo_reg_write(solo_dev, SOLO_DMA_CTRL,
	211	SOLO_DMA_CTRL_REFRESH_CYCLE(1) \|
	212	SOLO_DMA_CTRL_SDRAM_SIZE(sdram) \|
	213	SOLO_DMA_CTRL_SDRAM_CLK_INVERT \|
	214	SOLO_DMA_CTRL_READ_CLK_SELECT \|
	215	SOLO_DMA_CTRL_LATENCY(1));
	216
15300c1d PS	217	ret = solo_p2m_init(solo_dev);
15300c1d PS	218	if (ret)
faa4fd2a BC	219	goto fail_probe;
faa4fd2a BC	220
15300c1d PS	221	ret = solo_disp_init(solo_dev);
15300c1d PS	222	if (ret)
faa4fd2a BC	223	goto fail_probe;
faa4fd2a BC	224
15300c1d PS	225	ret = solo_gpio_init(solo_dev);
15300c1d PS	226	if (ret)
faa4fd2a BC	227	goto fail_probe;
faa4fd2a BC	228
15300c1d PS	229	ret = solo_tw28_init(solo_dev);
15300c1d PS	230	if (ret)
faa4fd2a BC	231	goto fail_probe;
faa4fd2a BC	232
15300c1d PS	233	ret = solo_v4l2_init(solo_dev);
15300c1d PS	234	if (ret)
faa4fd2a BC	235	goto fail_probe;
faa4fd2a BC	236
15300c1d PS	237	ret = solo_enc_init(solo_dev);
15300c1d PS	238	if (ret)
faa4fd2a BC	239	goto fail_probe;
faa4fd2a BC	240
15300c1d PS	241	ret = solo_enc_v4l2_init(solo_dev);
15300c1d PS	242	if (ret)
faa4fd2a BC	243	goto fail_probe;
faa4fd2a BC	244
15300c1d PS	245	ret = solo_g723_init(solo_dev);
15300c1d PS	246	if (ret)
faa4fd2a BC	247	goto fail_probe;
	248
	249	return 0;
	250
	251	fail_probe:
	252	free_solo_dev(solo_dev);
	253	return ret;
	254	}
	255
	256	static void __devexit solo6010_pci_remove(struct pci_dev *pdev)
	257	{
	258	struct solo6010_dev *solo_dev = pci_get_drvdata(pdev);
	259
	260	free_solo_dev(solo_dev);
	261	}
	262
	263	static struct pci_device_id solo6010_id_table[] = {
	264	{PCI_DEVICE(PCI_VENDOR_ID_SOFTLOGIC, PCI_DEVICE_ID_SOLO6010)},
	265	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_NEUSOLO_4)},
	266	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_NEUSOLO_9)},
	267	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_NEUSOLO_16)},
	268	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_COMMSOLO_4)},
	269	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_COMMSOLO_9)},
	270	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_COMMSOLO_16)},
	271	{0,}
	272	};
	273
	274	MODULE_DEVICE_TABLE(pci, solo6010_id_table);
	275
	276	static struct pci_driver solo6010_pci_driver = {
	277	.name = SOLO6010_NAME,
	278	.id_table = solo6010_id_table,
	279	.probe = solo6010_pci_probe,
	280	.remove = solo6010_pci_remove,
	281	};
	282
	283	static int __init solo6010_module_init(void)
	284	{
	285	return pci_register_driver(&solo6010_pci_driver);
	286	}
	287
	288	static void __exit solo6010_module_exit(void)
	289	{
	290	pci_unregister_driver(&solo6010_pci_driver);
	291	}
	292
	293	module_init(solo6010_module_init);
	294	module_exit(solo6010_module_exit);