mixer.c

linux-2.6.15.6

				ret = -EFAULT;

			break;

		case CMD_GETCTLGPR:
			addr = emu10k1_find_control_gpr(&card->mgr, (char *) ctl->val, &((char *) ctl->val)[PATCH_NAME_SIZE]);
			ctl->val[0] = sblive_readptr(card, addr, 0);

			if (copy_to_user(argp, ctl, sizeof(struct mixer_private_ioctl)))
				ret = -EFAULT;

			break;

		case CMD_SETPATCH:
			if (ctl->val[0] == 0)
				memcpy(&card->mgr.rpatch, &ctl->val[1], sizeof(struct dsp_rpatch));
			else {
				page = (ctl->val[0] - 1) / PATCHES_PER_PAGE;
				if (page > MAX_PATCHES_PAGES) {
					ret = -EINVAL;
					break;
				}

				if (page >= card->mgr.current_pages) {
					for (i = card->mgr.current_pages; i < page + 1; i++) {
				                card->mgr.patch[i] = (void *)__get_free_page(GFP_KERNEL);
						if(card->mgr.patch[i] == NULL) {
							card->mgr.current_pages = i;
							ret = -ENOMEM;
							break;
						}
						memset(card->mgr.patch[i], 0, PAGE_SIZE);
					}
					card->mgr.current_pages = page + 1;
				}

				patch = PATCH(&card->mgr, ctl->val[0] - 1);

				memcpy(patch, &ctl->val[1], sizeof(struct dsp_patch));

				if (patch->code_size == 0) {
					for(i = page + 1; i < card->mgr.current_pages; i++)
                                                free_page((unsigned long) card->mgr.patch[i]);

					card->mgr.current_pages = page + 1;
				}
			}
			break;

		case CMD_SETGPR:
			if (ctl->val[0] > NUM_GPRS) {
				ret = -EINVAL;
				break;
			}

			memcpy(&card->mgr.gpr[ctl->val[0]], &ctl->val[1], sizeof(struct dsp_gpr));
			break;

		case CMD_SETCTLGPR:
			addr = emu10k1_find_control_gpr(&card->mgr, (char *) ctl->val, (char *) ctl->val + PATCH_NAME_SIZE);
			emu10k1_set_control_gpr(card, addr, *((s32 *)((char *) ctl->val + 2 * PATCH_NAME_SIZE)), 0);
			break;

		case CMD_SETGPOUT:
			if ( ((ctl->val[0] > 2) && (!card->is_audigy))
			     || (ctl->val[0] > 15) || ctl->val[1] > 1) {
				ret= -EINVAL;
				break;
			}

			if (card->is_audigy)
				emu10k1_writefn0(card, (1 << 24) | ((ctl->val[0]) << 16) | A_IOCFG, ctl->val[1]);
			else
				emu10k1_writefn0(card, (1 << 24) | (((ctl->val[0]) + 10) << 16) | HCFG, ctl->val[1]);
			break;

		case CMD_GETGPR2OSS:
			id = ctl->val[0];
			ch = ctl->val[1];

			if (id >= SOUND_MIXER_NRDEVICES || ch >= 2) {
				ret = -EINVAL;
				break;
			}

			ctl->val[2] = card->mgr.ctrl_gpr[id][ch];

			if (copy_to_user(argp, ctl, sizeof(struct mixer_private_ioctl)))
				ret = -EFAULT;

			break;

		case CMD_SETGPR2OSS:
			id = ctl->val[0];
			/* 0 == left, 1 == right */
			ch = ctl->val[1];
			addr = ctl->val[2];

			if (id >= SOUND_MIXER_NRDEVICES || ch >= 2) {
				ret = -EINVAL;
				break;
			}

			card->mgr.ctrl_gpr[id][ch] = addr;

			if (card->is_aps)
				break;

			if (addr >= 0) {
				unsigned int state = card->ac97->mixer_state[id];

				if (ch == 1) {
					state >>= 8;
					card->ac97->stereo_mixers |= (1 << id);
				}

				card->ac97->supported_mixers |= (1 << id);

				if (id == SOUND_MIXER_TREBLE) {
					set_treble(card, card->ac97->mixer_state[id] & 0xff, (card->ac97->mixer_state[id] >> 8) & 0xff);
				} else if (id == SOUND_MIXER_BASS) {
					set_bass(card, card->ac97->mixer_state[id] & 0xff, (card->ac97->mixer_state[id] >> 8) & 0xff);
				} else
					emu10k1_set_volume_gpr(card, addr, state & 0xff,
							       volume_params[id]);
			} else {
				card->ac97->stereo_mixers &= ~(1 << id);
				card->ac97->stereo_mixers |= card->ac97_stereo_mixers;

				if (ch == 0) {
					card->ac97->supported_mixers &= ~(1 << id);
					card->ac97->supported_mixers |= card->ac97_supported_mixers;
				}
			}
			break;

		case CMD_SETPASSTHROUGH:
			card->pt.selected = ctl->val[0] ? 1 : 0;
			if (card->pt.state != PT_STATE_INACTIVE)
				break;

			card->pt.spcs_to_use = ctl->val[0] & 0x07;
			break;

		case CMD_PRIVATE3_VERSION:
			ctl->val[0] = PRIVATE3_VERSION;	//private3 version
			ctl->val[1] = MAJOR_VER;	//major driver version
			ctl->val[2] = MINOR_VER;	//minor driver version
			ctl->val[3] = card->is_audigy;	//1=card is audigy

			if (card->is_audigy)
				ctl->val[4]=emu10k1_readfn0(card, 0x18);

			if (copy_to_user(argp, ctl, sizeof(struct mixer_private_ioctl)))
				ret = -EFAULT;
			break;

		case CMD_AC97_BOOST:
			if (ctl->val[0])
				emu10k1_ac97_write(card->ac97, 0x18, 0x0);	
			else
				emu10k1_ac97_write(card->ac97, 0x18, 0x0808);
			break;
		default:
			ret = -EINVAL;
			break;
		}

		kfree(ctl);
		return ret;
		break;

	case SOUND_MIXER_PRIVATE4:

		if (copy_from_user(&size, argp, sizeof(size)))
			return -EFAULT;

		DPD(2, "External tram size %#x\n", size);

		if (size > 0x1fffff)
			return -EINVAL;

		size_reg = 0;

		if (size != 0) {
			size = (size - 1) >> 14;

			while (size) {
				size >>= 1;
				size_reg++;
			}

			size = 0x4000 << size_reg;
		}

		DPD(2, "External tram size %#x %#x\n", size, size_reg);

		if (size != card->tankmem.size) {
			if (card->tankmem.size > 0) {
				emu10k1_writefn0(card, HCFG_LOCKTANKCACHE, 1);

				sblive_writeptr_tag(card, 0, TCB, 0, TCBS, 0, TAGLIST_END);

				pci_free_consistent(card->pci_dev, card->tankmem.size, card->tankmem.addr, card->tankmem.dma_handle);

				card->tankmem.size = 0;
			}

			if (size != 0) {
				card->tankmem.addr = pci_alloc_consistent(card->pci_dev, size, &card->tankmem.dma_handle);
				if (card->tankmem.addr == NULL)
					return -ENOMEM;

				card->tankmem.size = size;

				sblive_writeptr_tag(card, 0, TCB, (u32) card->tankmem.dma_handle, TCBS,(u32) size_reg, TAGLIST_END);

				emu10k1_writefn0(card, HCFG_LOCKTANKCACHE, 0);
			}
		}
		return 0;
		break;

	default:
		break;
	}

	return -EINVAL;
}

static int emu10k1_dsp_mixer(struct emu10k1_card *card, unsigned int oss_mixer, unsigned long arg)
{
	unsigned int left, right;
	int val;
	int scale;

	card->ac97->modcnt++;

	if (get_user(val, (int __user *)arg))
		return -EFAULT;

	/* cleanse input a little */
	right = ((val >> 8)  & 0xff);
	left = (val  & 0xff);

	if (right > 100) right = 100;
	if (left > 100) left = 100;

	card->ac97->mixer_state[oss_mixer] = (right << 8) | left;
	if (oss_mixer == SOUND_MIXER_TREBLE) {
		set_treble(card, left, right);
		return 0;
	} if (oss_mixer == SOUND_MIXER_BASS) {
		set_bass(card, left, right);
		return 0;
	}

	if (oss_mixer == SOUND_MIXER_VOLUME)
		scale = 1 << card->ac97->bit_resolution;
	else
		scale = volume_params[oss_mixer];

	emu10k1_set_volume_gpr(card, card->mgr.ctrl_gpr[oss_mixer][0], left, scale);
	emu10k1_set_volume_gpr(card, card->mgr.ctrl_gpr[oss_mixer][1], right, scale);

	if (card->ac97_supported_mixers & (1 << oss_mixer))
		card->ac97->write_mixer(card->ac97, oss_mixer, left, right);

	return 0;
}

static int emu10k1_mixer_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
	int ret;
	struct emu10k1_card *card = file->private_data;
	unsigned int oss_mixer = _IOC_NR(cmd);
	
	ret = -EINVAL;
	if (!card->is_aps) {
		if (cmd == SOUND_MIXER_INFO) {
			mixer_info info;

			strlcpy(info.id, card->ac97->name, sizeof(info.id));

			if (card->is_audigy)
				strlcpy(info.name, "Audigy - Emu10k1", sizeof(info.name));
			else
				strlcpy(info.name, "Creative SBLive - Emu10k1", sizeof(info.name));
				
			info.modify_counter = card->ac97->modcnt;

			if (copy_to_user((void __user *)arg, &info, sizeof(info)))
				return -EFAULT;

			return 0;
		}

		if ((_SIOC_DIR(cmd) == (_SIOC_WRITE|_SIOC_READ)) && oss_mixer <= SOUND_MIXER_NRDEVICES)
			ret = emu10k1_dsp_mixer(card, oss_mixer, arg);
		else
			ret = card->ac97->mixer_ioctl(card->ac97, cmd, arg);
	}
	
	if (ret < 0)
		ret = emu10k1_private_mixer(card, cmd, arg);

	return ret;
}

static int emu10k1_mixer_open(struct inode *inode, struct file *file)
{
	int minor = iminor(inode);
	struct emu10k1_card *card = NULL;
	struct list_head *entry;

	DPF(4, "emu10k1_mixer_open()\n");

	list_for_each(entry, &emu10k1_devs) {
		card = list_entry(entry, struct emu10k1_card, list);

		if (card->ac97->dev_mixer == minor)
			goto match;
	}

	return -ENODEV;

      match:
	file->private_data = card;
	return 0;
}

static int emu10k1_mixer_release(struct inode *inode, struct file *file)
{
	DPF(4, "emu10k1_mixer_release()\n");
	return 0;
}

struct file_operations emu10k1_mixer_fops = {
	.owner		= THIS_MODULE,
	.llseek		= no_llseek,
	.ioctl		= emu10k1_mixer_ioctl,
	.open		= emu10k1_mixer_open,
	.release	= emu10k1_mixer_release,
};