1 // SPDX-License-Identifier: GPL-2.0-or-later
22  * allocate a sample block and copy data from userspace
36 	emu = rec->hw;  in snd_emu10k1_sample_new()
38 		return -EINVAL;  in snd_emu10k1_sample_new()
40 	if (sp->v.size == 0) {  in snd_emu10k1_sample_new()
41 		dev_dbg(emu->card->dev,  in snd_emu10k1_sample_new()
42 			"emu: rom font for sample %d\n", sp->v.sample);  in snd_emu10k1_sample_new()
47 	sp->v.end -= sp->v.start;  in snd_emu10k1_sample_new()
48 	sp->v.loopstart -= sp->v.start;  in snd_emu10k1_sample_new()
49 	sp->v.loopend -= sp->v.start;  in snd_emu10k1_sample_new()
50 	sp->v.start = 0;  in snd_emu10k1_sample_new()
53 	sampleend = sp->v.end;  in snd_emu10k1_sample_new()
54 	if (sampleend > sp->v.size)  in snd_emu10k1_sample_new()
55 		sampleend = sp->v.size;  in snd_emu10k1_sample_new()
56 	loopend = sp->v.loopend;  in snd_emu10k1_sample_new()
61 	if (sp->v.loopstart >= sp->v.loopend)  in snd_emu10k1_sample_new()
62 		swap(sp->v.loopstart, sp->v.loopend);  in snd_emu10k1_sample_new()
65 	truesize = sp->v.size + BLANK_HEAD_SIZE;  in snd_emu10k1_sample_new()
68 	if (sp->v.mode_flags & (SNDRV_SFNT_SAMPLE_BIDIR_LOOP|SNDRV_SFNT_SAMPLE_REVERSE_LOOP))  in snd_emu10k1_sample_new()
69 		loopsize = sp->v.loopend - sp->v.loopstart;  in snd_emu10k1_sample_new()
72 	if (sp->v.mode_flags & SNDRV_SFNT_SAMPLE_NO_BLANK)  in snd_emu10k1_sample_new()
75 	/* try to allocate a memory block */  in snd_emu10k1_sample_new()
77 	if (! (sp->v.mode_flags & SNDRV_SFNT_SAMPLE_8BITS))  in snd_emu10k1_sample_new()
79 	sp->block = snd_emu10k1_synth_alloc(emu, blocksize);  in snd_emu10k1_sample_new()
80 	if (sp->block == NULL) {  in snd_emu10k1_sample_new()
81 		dev_dbg(emu->card->dev,  in snd_emu10k1_sample_new()
84 		return -ENOSPC;  in snd_emu10k1_sample_new()
87 	sp->v.truesize = blocksize;  in snd_emu10k1_sample_new()
92 	if (! (sp->v.mode_flags & SNDRV_SFNT_SAMPLE_8BITS))  in snd_emu10k1_sample_new()
95 		return -EINVAL;  in snd_emu10k1_sample_new()
96 	snd_emu10k1_synth_bzero(emu, sp->block, offset, size);  in snd_emu10k1_sample_new()
99 	/* copy start->loopend */  in snd_emu10k1_sample_new()
101 	if (! (sp->v.mode_flags & SNDRV_SFNT_SAMPLE_8BITS))  in snd_emu10k1_sample_new()
104 		return -EINVAL;  in snd_emu10k1_sample_new()
105 	if (snd_emu10k1_synth_copy_from_user(emu, sp->block, offset, data, size)) {  in snd_emu10k1_sample_new()
106 		snd_emu10k1_synth_free(emu, sp->block);  in snd_emu10k1_sample_new()
107 		sp->block = NULL;  in snd_emu10k1_sample_new()
108 		return -EFAULT;  in snd_emu10k1_sample_new()
115 	if (sp->v.mode_flags & (SNDRV_SFNT_SAMPLE_BIDIR_LOOP|SNDRV_SFNT_SAMPLE_REVERSE_LOOP)) {  in snd_emu10k1_sample_new()
116 		/* copy loop in reverse */  in snd_emu10k1_sample_new()
117 		if (! (sp->v.mode_flags & SNDRV_SFNT_SAMPLE_8BITS)) {  in snd_emu10k1_sample_new()
119 			unsigned short *wblock = (unsigned short*)block;  in snd_emu10k1_sample_new()
122 				return -EINVAL;  in snd_emu10k1_sample_new()
124 				wblock[woffset + i] = wblock[woffset - i -1];  in snd_emu10k1_sample_new()
128 				return -EINVAL;  in snd_emu10k1_sample_new()
130 				block[offset + i] = block[offset - i -1];  in snd_emu10k1_sample_new()
135 		if (sp->v.mode_flags & SNDRV_SFNT_SAMPLE_BIDIR_LOOP) {  in snd_emu10k1_sample_new()
136 			sp->v.loopend += loopsize;  in snd_emu10k1_sample_new()
138 			sp->v.loopstart += loopsize;  in snd_emu10k1_sample_new()
139 			sp->v.loopend += loopsize;  in snd_emu10k1_sample_new()
142 		sp->v.end += loopsize;  in snd_emu10k1_sample_new()
146 	/* loopend -> sample end */  in snd_emu10k1_sample_new()
147 	size = sp->v.size - loopend;  in snd_emu10k1_sample_new()
149 		return -EINVAL;  in snd_emu10k1_sample_new()
150 	if (! (sp->v.mode_flags & SNDRV_SFNT_SAMPLE_8BITS))  in snd_emu10k1_sample_new()
152 	if (snd_emu10k1_synth_copy_from_user(emu, sp->block, offset, data, size)) {  in snd_emu10k1_sample_new()
153 		snd_emu10k1_synth_free(emu, sp->block);  in snd_emu10k1_sample_new()
154 		sp->block = NULL;  in snd_emu10k1_sample_new()
155 		return -EFAULT;  in snd_emu10k1_sample_new()
161 		snd_emu10k1_synth_bzero(emu, sp->block, offset, blocksize - offset);  in snd_emu10k1_sample_new()
163 	if (sp->v.mode_flags & SNDRV_SFNT_SAMPLE_NO_BLANK) {  in snd_emu10k1_sample_new()
165 		if (sp->v.mode_flags & SNDRV_SFNT_SAMPLE_SINGLESHOT) {  in snd_emu10k1_sample_new()
166 			sp->v.loopstart = sp->v.end + BLANK_LOOP_START;  in snd_emu10k1_sample_new()
167 			sp->v.loopend = sp->v.end + BLANK_LOOP_END;  in snd_emu10k1_sample_new()
172 	if (sp->v.mode_flags & SNDRV_SFNT_SAMPLE_UNSIGNED) {  in snd_emu10k1_sample_new()
173 		/* unsigned -> signed */  in snd_emu10k1_sample_new()
174 		if (! (sp->v.mode_flags & SNDRV_SFNT_SAMPLE_8BITS)) {  in snd_emu10k1_sample_new()
175 			unsigned short *wblock = (unsigned short*)block;  in snd_emu10k1_sample_new()
180 				block[i] ^= 0x80;  in snd_emu10k1_sample_new()
187 	if (! (sp->v.mode_flags & SNDRV_SFNT_SAMPLE_8BITS))  in snd_emu10k1_sample_new()
189 	sp->v.start += start_addr;  in snd_emu10k1_sample_new()
190 	sp->v.end += start_addr;  in snd_emu10k1_sample_new()
191 	sp->v.loopstart += start_addr;  in snd_emu10k1_sample_new()
192 	sp->v.loopend += start_addr;  in snd_emu10k1_sample_new()
198  * free a sample block
206 	emu = rec->hw;  in snd_emu10k1_sample_free()
208 		return -EINVAL;  in snd_emu10k1_sample_free()
210 	if (sp->block) {  in snd_emu10k1_sample_free()
211 		snd_emu10k1_synth_free(emu, sp->block);  in snd_emu10k1_sample_free()
212 		sp->block = NULL;  in snd_emu10k1_sample_free()