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[ALSA] sun-cs4231: code improvements
This patch does some code improvements to make driver (both code and binary) shorter. It also make use of card->private_data pointer to store chip information. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Krzysztof Helt
Jaroslav Kysela
parent
4ea2416398
commit
c6c2d57b8c
@ -30,17 +30,11 @@
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#ifdef CONFIG_SBUS
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#define SBUS_SUPPORT
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#endif
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#ifdef SBUS_SUPPORT
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#include <asm/sbus.h>
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#endif
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#if defined(CONFIG_PCI) && defined(CONFIG_SPARC64)
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#define EBUS_SUPPORT
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#endif
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#ifdef EBUS_SUPPORT
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#include <linux/pci.h>
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#include <asm/ebus.h>
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#endif
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@ -339,7 +333,7 @@ static unsigned int rates[14] = {
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};
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static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
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.count = 14,
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.count = ARRAY_SIZE(rates),
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.list = rates,
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};
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@ -389,116 +383,85 @@ static unsigned char snd_cs4231_original_image[32] =
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static u8 __cs4231_readb(struct snd_cs4231 *cp, void __iomem *reg_addr)
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{
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#ifdef EBUS_SUPPORT
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if (cp->flags & CS4231_FLAG_EBUS) {
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if (cp->flags & CS4231_FLAG_EBUS)
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return readb(reg_addr);
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} else {
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else
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#endif
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#ifdef SBUS_SUPPORT
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return sbus_readb(reg_addr);
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#endif
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#ifdef EBUS_SUPPORT
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}
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#endif
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}
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static void __cs4231_writeb(struct snd_cs4231 *cp, u8 val, void __iomem *reg_addr)
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{
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#ifdef EBUS_SUPPORT
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if (cp->flags & CS4231_FLAG_EBUS) {
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if (cp->flags & CS4231_FLAG_EBUS)
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return writeb(val, reg_addr);
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} else {
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else
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#endif
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#ifdef SBUS_SUPPORT
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return sbus_writeb(val, reg_addr);
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#endif
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#ifdef EBUS_SUPPORT
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}
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#endif
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}
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/*
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* Basic I/O functions
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*/
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static void snd_cs4231_outm(struct snd_cs4231 *chip, unsigned char reg,
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unsigned char mask, unsigned char value)
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static void snd_cs4231_ready(struct snd_cs4231 *chip)
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{
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int timeout;
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unsigned char tmp;
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for (timeout = 250;
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timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT);
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timeout--)
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udelay(100);
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#ifdef CONFIG_SND_DEBUG
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if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
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snd_printdd("outm: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
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#endif
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if (chip->calibrate_mute) {
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chip->image[reg] &= mask;
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chip->image[reg] |= value;
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} else {
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__cs4231_writeb(chip, chip->mce_bit | reg, CS4231P(chip, REGSEL));
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mb();
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tmp = (chip->image[reg] & mask) | value;
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__cs4231_writeb(chip, tmp, CS4231P(chip, REG));
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chip->image[reg] = tmp;
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mb();
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}
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}
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static void snd_cs4231_dout(struct snd_cs4231 *chip, unsigned char reg, unsigned char value)
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{
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int timeout;
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for (timeout = 250;
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timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT);
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timeout--)
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udelay(100);
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snd_cs4231_ready(chip);
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#ifdef CONFIG_SND_DEBUG
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if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
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snd_printdd("out: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
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snd_printdd("out: auto calibration time out - reg = 0x%x, "
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"value = 0x%x\n",
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reg, value);
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#endif
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__cs4231_writeb(chip, chip->mce_bit | reg, CS4231P(chip, REGSEL));
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wmb();
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__cs4231_writeb(chip, value, CS4231P(chip, REG));
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mb();
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}
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static void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char value)
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static inline void snd_cs4231_outm(struct snd_cs4231 *chip, unsigned char reg,
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unsigned char mask, unsigned char value)
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{
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int timeout;
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unsigned char tmp = (chip->image[reg] & mask) | value;
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for (timeout = 250;
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timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT);
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timeout--)
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udelay(100);
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#ifdef CONFIG_SND_DEBUG
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if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
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snd_printdd("out: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
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#endif
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__cs4231_writeb(chip, chip->mce_bit | reg, CS4231P(chip, REGSEL));
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__cs4231_writeb(chip, value, CS4231P(chip, REG));
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chip->image[reg] = tmp;
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if (!chip->calibrate_mute)
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snd_cs4231_dout(chip, reg, tmp);
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}
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static void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg,
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unsigned char value)
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{
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snd_cs4231_dout(chip, reg, value);
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chip->image[reg] = value;
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mb();
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}
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static unsigned char snd_cs4231_in(struct snd_cs4231 *chip, unsigned char reg)
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{
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int timeout;
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unsigned char ret;
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for (timeout = 250;
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timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT);
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timeout--)
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udelay(100);
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snd_cs4231_ready(chip);
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#ifdef CONFIG_SND_DEBUG
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if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
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snd_printdd("in: auto calibration time out - reg = 0x%x\n", reg);
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snd_printdd("in: auto calibration time out - reg = 0x%x\n",
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reg);
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#endif
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__cs4231_writeb(chip, chip->mce_bit | reg, CS4231P(chip, REGSEL));
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mb();
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ret = __cs4231_readb(chip, CS4231P(chip, REG));
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return ret;
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return __cs4231_readb(chip, CS4231P(chip, REG));
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}
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/*
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@ -517,7 +480,7 @@ static void snd_cs4231_busy_wait(struct snd_cs4231 *chip)
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for (timeout = 500;
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timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT);
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timeout--)
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udelay(1000);
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msleep(1);
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}
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static void snd_cs4231_mce_up(struct snd_cs4231 *chip)
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@ -526,8 +489,7 @@ static void snd_cs4231_mce_up(struct snd_cs4231 *chip)
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int timeout;
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spin_lock_irqsave(&chip->lock, flags);
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for (timeout = 250; timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT); timeout--)
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udelay(100);
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snd_cs4231_ready(chip);
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#ifdef CONFIG_SND_DEBUG
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if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
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snd_printdd("mce_up - auto calibration time out (0)\n");
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@ -565,8 +527,8 @@ static void snd_cs4231_mce_down(struct snd_cs4231 *chip)
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/* calibration process */
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for (timeout = 500; timeout > 0 && (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) == 0; timeout--)
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udelay(100);
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snd_cs4231_ready(chip);
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snd_cs4231_ready(chip);
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if ((snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) == 0) {
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snd_printd("cs4231_mce_down - auto calibration time out (1)\n");
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spin_unlock_irqrestore(&chip->lock, flags);
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@ -1058,11 +1020,6 @@ static int snd_cs4231_playback_hw_params(struct snd_pcm_substream *substream,
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return 0;
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}
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static int snd_cs4231_playback_hw_free(struct snd_pcm_substream *substream)
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{
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return snd_pcm_lib_free_pages(substream);
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}
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static int snd_cs4231_playback_prepare(struct snd_pcm_substream *substream)
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{
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struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
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@ -1100,11 +1057,6 @@ static int snd_cs4231_capture_hw_params(struct snd_pcm_substream *substream,
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return 0;
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}
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static int snd_cs4231_capture_hw_free(struct snd_pcm_substream *substream)
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{
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return snd_pcm_lib_free_pages(substream);
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}
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static int snd_cs4231_capture_prepare(struct snd_pcm_substream *substream)
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{
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struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
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@ -1182,10 +1134,6 @@ static snd_pcm_uframes_t snd_cs4231_capture_pointer(struct snd_pcm_substream *su
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return bytes_to_frames(substream->runtime, ptr);
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}
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/*
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*/
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static int __init snd_cs4231_probe(struct snd_cs4231 *chip)
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{
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unsigned long flags;
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@ -1356,7 +1304,7 @@ static struct snd_pcm_ops snd_cs4231_playback_ops = {
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.close = snd_cs4231_playback_close,
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.ioctl = snd_pcm_lib_ioctl,
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.hw_params = snd_cs4231_playback_hw_params,
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.hw_free = snd_cs4231_playback_hw_free,
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.hw_free = snd_pcm_lib_free_pages,
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.prepare = snd_cs4231_playback_prepare,
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.trigger = snd_cs4231_trigger,
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.pointer = snd_cs4231_playback_pointer,
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@ -1367,18 +1315,20 @@ static struct snd_pcm_ops snd_cs4231_capture_ops = {
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.close = snd_cs4231_capture_close,
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.ioctl = snd_pcm_lib_ioctl,
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.hw_params = snd_cs4231_capture_hw_params,
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.hw_free = snd_cs4231_capture_hw_free,
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.hw_free = snd_pcm_lib_free_pages,
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.prepare = snd_cs4231_capture_prepare,
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.trigger = snd_cs4231_trigger,
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.pointer = snd_cs4231_capture_pointer,
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};
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static int __init snd_cs4231_pcm(struct snd_cs4231 *chip)
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static int __init snd_cs4231_pcm(struct snd_card *card)
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{
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struct snd_cs4231 *chip = card->private_data;
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struct snd_pcm *pcm;
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int err;
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if ((err = snd_pcm_new(chip->card, "CS4231", 0, 1, 1, &pcm)) < 0)
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err = snd_pcm_new(card, "CS4231", 0, 1, 1, &pcm);
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if (err < 0)
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return err;
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snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs4231_playback_ops);
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@ -1396,8 +1346,9 @@ static int __init snd_cs4231_pcm(struct snd_cs4231 *chip)
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return 0;
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}
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static int __init snd_cs4231_timer(struct snd_cs4231 *chip)
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static int __init snd_cs4231_timer(struct snd_card *card)
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{
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struct snd_cs4231 *chip = card->private_data;
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struct snd_timer *timer;
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struct snd_timer_id tid;
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int err;
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@ -1405,10 +1356,11 @@ static int __init snd_cs4231_timer(struct snd_cs4231 *chip)
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/* Timer initialization */
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tid.dev_class = SNDRV_TIMER_CLASS_CARD;
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tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
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tid.card = chip->card->number;
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tid.card = card->number;
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tid.device = 0;
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tid.subdevice = 0;
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if ((err = snd_timer_new(chip->card, "CS4231", &tid, &timer)) < 0)
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err = snd_timer_new(card, "CS4231", &tid, &timer);
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if (err < 0)
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return err;
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strcpy(timer->name, "CS4231");
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timer->private_data = chip;
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@ -1428,9 +1380,7 @@ static int snd_cs4231_info_mux(struct snd_kcontrol *kcontrol,
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static char *texts[4] = {
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"Line", "CD", "Mic", "Mix"
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};
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struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
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snd_assert(chip->card != NULL, return -EINVAL);
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uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
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uinfo->count = 2;
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uinfo->value.enumerated.items = 4;
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@ -1670,21 +1620,19 @@ CS4231_SINGLE("Line Out Switch", 0, CS4231_PIN_CTRL, 6, 1, 1),
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CS4231_SINGLE("Headphone Out Switch", 0, CS4231_PIN_CTRL, 7, 1, 1)
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};
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static int __init snd_cs4231_mixer(struct snd_cs4231 *chip)
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static int __init snd_cs4231_mixer(struct snd_card *card)
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{
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struct snd_card *card;
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struct snd_cs4231 *chip = card->private_data;
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int err, idx;
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snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
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card = chip->card;
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strcpy(card->mixername, chip->pcm->name);
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for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) {
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if ((err = snd_ctl_add(card,
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snd_ctl_new1(&snd_cs4231_controls[idx],
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chip))) < 0)
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err = snd_ctl_add(card,
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snd_ctl_new1(&snd_cs4231_controls[idx], chip));
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if (err < 0)
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return err;
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}
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return 0;
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@ -1695,6 +1643,7 @@ static int dev;
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static int __init cs4231_attach_begin(struct snd_card **rcard)
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{
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struct snd_card *card;
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struct snd_cs4231 *chip;
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*rcard = NULL;
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@ -1706,31 +1655,40 @@ static int __init cs4231_attach_begin(struct snd_card **rcard)
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return -ENOENT;
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}
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card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
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card = snd_card_new(index[dev], id[dev], THIS_MODULE,
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sizeof(struct snd_cs4231));
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if (card == NULL)
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return -ENOMEM;
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strcpy(card->driver, "CS4231");
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strcpy(card->shortname, "Sun CS4231");
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chip = card->private_data;
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chip->card = card;
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*rcard = card;
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return 0;
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}
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static int __init cs4231_attach_finish(struct snd_card *card, struct snd_cs4231 *chip)
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static int __init cs4231_attach_finish(struct snd_card *card)
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{
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struct snd_cs4231 *chip = card->private_data;
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int err;
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if ((err = snd_cs4231_pcm(chip)) < 0)
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err = snd_cs4231_pcm(card);
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if (err < 0)
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goto out_err;
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if ((err = snd_cs4231_mixer(chip)) < 0)
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err = snd_cs4231_mixer(card);
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if (err < 0)
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goto out_err;
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if ((err = snd_cs4231_timer(chip)) < 0)
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err = snd_cs4231_timer(card);
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if (err < 0)
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goto out_err;
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if ((err = snd_card_register(card)) < 0)
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err = snd_card_register(card);
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if (err < 0)
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goto out_err;
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chip->next = cs4231_list;
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@ -1925,23 +1883,16 @@ static struct snd_device_ops snd_cs4231_sbus_dev_ops = {
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static int __init snd_cs4231_sbus_create(struct snd_card *card,
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struct sbus_dev *sdev,
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int dev,
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struct snd_cs4231 **rchip)
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int dev)
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{
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struct snd_cs4231 *chip;
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struct snd_cs4231 *chip = card->private_data;
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int err;
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*rchip = NULL;
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chip = kzalloc(sizeof(*chip), GFP_KERNEL);
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if (chip == NULL)
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return -ENOMEM;
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spin_lock_init(&chip->lock);
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spin_lock_init(&chip->c_dma.sbus_info.lock);
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spin_lock_init(&chip->p_dma.sbus_info.lock);
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mutex_init(&chip->mce_mutex);
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mutex_init(&chip->open_mutex);
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chip->card = card;
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chip->dev_u.sdev = sdev;
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chip->regs_size = sdev->reg_addrs[0].reg_size;
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memcpy(&chip->image, &snd_cs4231_original_image,
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@ -1992,14 +1943,12 @@ static int __init snd_cs4231_sbus_create(struct snd_card *card,
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return err;
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}
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*rchip = chip;
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return 0;
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}
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static int __init cs4231_sbus_attach(struct sbus_dev *sdev)
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{
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struct resource *rp = &sdev->resource[0];
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struct snd_cs4231 *cp;
|
||||
struct snd_card *card;
|
||||
int err;
|
||||
|
||||
@ -2013,12 +1962,13 @@ static int __init cs4231_sbus_attach(struct sbus_dev *sdev)
|
||||
(unsigned long long)rp->start,
|
||||
sdev->irqs[0]);
|
||||
|
||||
if ((err = snd_cs4231_sbus_create(card, sdev, dev, &cp)) < 0) {
|
||||
err = snd_cs4231_sbus_create(card, sdev, dev);
|
||||
if (err < 0) {
|
||||
snd_card_free(card);
|
||||
return err;
|
||||
}
|
||||
|
||||
return cs4231_attach_finish(card, cp);
|
||||
return cs4231_attach_finish(card);
|
||||
}
|
||||
#endif
|
||||
|
||||
@ -2105,24 +2055,17 @@ static struct snd_device_ops snd_cs4231_ebus_dev_ops = {
|
||||
|
||||
static int __init snd_cs4231_ebus_create(struct snd_card *card,
|
||||
struct linux_ebus_device *edev,
|
||||
int dev,
|
||||
struct snd_cs4231 **rchip)
|
||||
int dev)
|
||||
{
|
||||
struct snd_cs4231 *chip;
|
||||
struct snd_cs4231 *chip = card->private_data;
|
||||
int err;
|
||||
|
||||
*rchip = NULL;
|
||||
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
|
||||
if (chip == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
spin_lock_init(&chip->lock);
|
||||
spin_lock_init(&chip->c_dma.ebus_info.lock);
|
||||
spin_lock_init(&chip->p_dma.ebus_info.lock);
|
||||
mutex_init(&chip->mce_mutex);
|
||||
mutex_init(&chip->open_mutex);
|
||||
chip->flags |= CS4231_FLAG_EBUS;
|
||||
chip->card = card;
|
||||
chip->dev_u.pdev = edev->bus->self;
|
||||
memcpy(&chip->image, &snd_cs4231_original_image,
|
||||
sizeof(snd_cs4231_original_image));
|
||||
@ -2192,14 +2135,12 @@ static int __init snd_cs4231_ebus_create(struct snd_card *card,
|
||||
return err;
|
||||
}
|
||||
|
||||
*rchip = chip;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __init cs4231_ebus_attach(struct linux_ebus_device *edev)
|
||||
{
|
||||
struct snd_card *card;
|
||||
struct snd_cs4231 *chip;
|
||||
int err;
|
||||
|
||||
err = cs4231_attach_begin(&card);
|
||||
@ -2211,12 +2152,13 @@ static int __init cs4231_ebus_attach(struct linux_ebus_device *edev)
|
||||
edev->resource[0].start,
|
||||
edev->irqs[0]);
|
||||
|
||||
if ((err = snd_cs4231_ebus_create(card, edev, dev, &chip)) < 0) {
|
||||
err = snd_cs4231_ebus_create(card, edev, dev);
|
||||
if (err < 0) {
|
||||
snd_card_free(card);
|
||||
return err;
|
||||
}
|
||||
|
||||
return cs4231_attach_finish(card, chip);
|
||||
return cs4231_attach_finish(card);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user