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Message-Id: <201305102241.13171.linux@rainbow-software.org>
Date: Fri, 10 May 2013 22:41:12 +0200
From: Ondrej Zary <linux@...nbow-software.org>
To: alsa-devel@...a-project.org
Cc: Kernel development list <linux-kernel@...r.kernel.org>
Subject: [PATCH] snd-es1968: Add radio support for MediaForte M56VAP
Add support for TEA5757 tuner on MediaForte M56VAP sound+modem+radio card.
The GPIO connection type is automatically detected (like snd-fm801 driver).
Also add a safety subsystem vendor check to skip radio detection if vendor
differs from ESS (so we don't touch GPIOs on laptops).
Tested with SF64-PCE2 and M56VAP cards.
Signed-off-by: Ondrej Zary <linux@...nbow-software.org>
---
sound/pci/es1968.c | 73 +++++++++++++++++++++++++++++++++++----------------
1 files changed, 50 insertions(+), 23 deletions(-)
diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c
index a1f32b5..db08641 100644
--- a/sound/pci/es1968.c
+++ b/sound/pci/es1968.c
@@ -564,6 +564,7 @@ struct es1968 {
#ifdef CONFIG_SND_ES1968_RADIO
struct v4l2_device v4l2_dev;
struct snd_tea575x tea;
+ unsigned int tea575x_tuner;
#endif
};
@@ -2557,37 +2558,47 @@ static int snd_es1968_input_register(struct es1968 *chip)
bits 1=unmask write to given bit */
#define IO_DIR 8 /* direction register offset from GPIO_DATA
bits 0/1=read/write direction */
-/* mask bits for GPIO lines */
-#define STR_DATA 0x0040 /* GPIO6 */
-#define STR_CLK 0x0080 /* GPIO7 */
-#define STR_WREN 0x0100 /* GPIO8 */
-#define STR_MOST 0x0200 /* GPIO9 */
+
+/* GPIO to TEA575x maps */
+struct snd_es1968_tea575x_gpio {
+ u8 data, clk, wren, most;
+ char *name;
+};
+
+static struct snd_es1968_tea575x_gpio snd_es1968_tea575x_gpios[] = {
+ { .data = 6, .clk = 7, .wren = 8, .most = 9, .name = "SF64-PCE2" },
+ { .data = 7, .clk = 8, .wren = 6, .most = 10, .name = "M56VAP" },
+};
+
+#define get_tea575x_gpio(chip) \
+ (&snd_es1968_tea575x_gpios[(chip)->tea575x_tuner])
+
static void snd_es1968_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
{
struct es1968 *chip = tea->private_data;
- unsigned long io = chip->io_port + GPIO_DATA;
+ struct snd_es1968_tea575x_gpio gpio = *get_tea575x_gpio(chip);
u16 val = 0;
- val |= (pins & TEA575X_DATA) ? STR_DATA : 0;
- val |= (pins & TEA575X_CLK) ? STR_CLK : 0;
- val |= (pins & TEA575X_WREN) ? STR_WREN : 0;
+ val |= (pins & TEA575X_DATA) ? (1 << gpio.data) : 0;
+ val |= (pins & TEA575X_CLK) ? (1 << gpio.clk) : 0;
+ val |= (pins & TEA575X_WREN) ? (1 << gpio.wren) : 0;
- outw(val, io);
+ outw(val, chip->io_port + GPIO_DATA);
}
static u8 snd_es1968_tea575x_get_pins(struct snd_tea575x *tea)
{
struct es1968 *chip = tea->private_data;
- unsigned long io = chip->io_port + GPIO_DATA;
- u16 val = inw(io);
- u8 ret;
+ struct snd_es1968_tea575x_gpio gpio = *get_tea575x_gpio(chip);
+ u16 val = inw(chip->io_port + GPIO_DATA);
+ u8 ret = 0;
- ret = 0;
- if (val & STR_DATA)
+ if (val & (1 << gpio.data))
ret |= TEA575X_DATA;
- if (val & STR_MOST)
+ if (val & (1 << gpio.most))
ret |= TEA575X_MOST;
+
return ret;
}
@@ -2596,13 +2607,18 @@ static void snd_es1968_tea575x_set_direction(struct snd_tea575x *tea, bool outpu
struct es1968 *chip = tea->private_data;
unsigned long io = chip->io_port + GPIO_DATA;
u16 odir = inw(io + IO_DIR);
+ struct snd_es1968_tea575x_gpio gpio = *get_tea575x_gpio(chip);
if (output) {
- outw(~(STR_DATA | STR_CLK | STR_WREN), io + IO_MASK);
- outw(odir | STR_DATA | STR_CLK | STR_WREN, io + IO_DIR);
+ outw(~((1 << gpio.data) | (1 << gpio.clk) | (1 << gpio.wren)),
+ io + IO_MASK);
+ outw(odir | (1 << gpio.data) | (1 << gpio.clk) | (1 << gpio.wren),
+ io + IO_DIR);
} else {
- outw(~(STR_CLK | STR_WREN | STR_DATA | STR_MOST), io + IO_MASK);
- outw((odir & ~(STR_DATA | STR_MOST)) | STR_CLK | STR_WREN, io + IO_DIR);
+ outw(~((1 << gpio.clk) | (1 << gpio.wren) | (1 << gpio.data) | (1 << gpio.most)),
+ io + IO_MASK);
+ outw((odir & ~((1 << gpio.data) | (1 << gpio.most)))
+ | (1 << gpio.clk) | (1 << gpio.wren), io + IO_DIR);
}
}
@@ -2772,6 +2788,9 @@ static int snd_es1968_create(struct snd_card *card,
snd_card_set_dev(card, &pci->dev);
#ifdef CONFIG_SND_ES1968_RADIO
+ /* don't play with GPIOs on laptops */
+ if (chip->pci->subsystem_vendor != 0x125d)
+ goto no_radio;
err = v4l2_device_register(&pci->dev, &chip->v4l2_dev);
if (err < 0) {
snd_es1968_free(chip);
@@ -2781,10 +2800,18 @@ static int snd_es1968_create(struct snd_card *card,
chip->tea.private_data = chip;
chip->tea.radio_nr = radio_nr;
chip->tea.ops = &snd_es1968_tea_ops;
- strlcpy(chip->tea.card, "SF64-PCE2", sizeof(chip->tea.card));
sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci));
- if (!snd_tea575x_init(&chip->tea, THIS_MODULE))
- printk(KERN_INFO "es1968: detected TEA575x radio\n");
+ for (i = 0; i < ARRAY_SIZE(snd_es1968_tea575x_gpios); i++) {
+ chip->tea575x_tuner = i;
+ if (!snd_tea575x_init(&chip->tea, THIS_MODULE)) {
+ snd_printk(KERN_INFO "es1968: detected TEA575x radio type %s\n",
+ get_tea575x_gpio(chip)->name);
+ strlcpy(chip->tea.card, get_tea575x_gpio(chip)->name,
+ sizeof(chip->tea.card));
+ break;
+ }
+ }
+no_radio:
#endif
*chip_ret = chip;
--
Ondrej Zary
--
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